W Widayat

Year	Citations
2026	296
2025	581
2024	521
2023	457
2022	290
2021	235
2020	143
2019	113
2018	104
2017	72
2016	61
2015	29
2014	26
2013	13
2012	9

#	Article Details	Year
1	Production of non-food feedstock based biodiesel using acid-base bifunctional heterogeneous catalysts: A review Google Scholar 👨‍🔬 M Mulyatun, J Prameswari, I Istadi, W Widayat 📚 Fuel 314, 122749, 2022	2022
2	A review of bio-lubricant production from vegetable oils using esterification transesterification process Google Scholar 👨‍🔬 AN Annisa, W Widayat 📚 MATEC Web of Conferences 156, 06007, 2018	2018
3	Application of foam-mat drying with egg white for carrageenan: drying rate and product quality aspects Google Scholar 👨‍🔬 M Djaeni, A Prasetyaningrum, SB Sasongko, W Widayat, CL Hii 📚 Journal of food science and technology 52 (2), 1170-1175, 2015	2015
4	Synthesis and characterization of ZSM-5 catalyst at different temperatures Google Scholar 👨‍🔬 W Widayat, AN Annisa 📚 IOP Conference Series: Materials Science and Engineering 214 (1), 012032, 2017	2017
5	Application of Spirulina platensis on ice cream and soft cheese with respect to their nutritional and sensory perspectives Google Scholar 👨‍🔬 TW Agustini, WF Maâ, W Widayat, M Suzery, H Hadiyanto, S Benjakul 📚 Jurnal Teknologi (Sciences & Engineering) 78 (4-2), 2016	2016
6	Analisis pemanfaatan limbah tandan kosong kelapa sawit sebagai cofiring pada PLTU Batubara Google Scholar 👨‍🔬 MF Praevia, W Widayat 📚 Jurnal Energi Baru dan Terbarukan 3 (1), 28-37, 2022	2022
7	Study on production process of biodiesel from rubber seed (hevea brasiliensis) by in situ (trans) esterification method with acid catalyst Google Scholar 👨‍🔬 ADK Wibowo 📚 Energy Procedia 32, 64-73, 2013	2013
8	The development of heterogeneous catalyst C/CaO/NaOH from waste of green mussel shell (Perna varidis) for biodiesel synthesis Google Scholar 👨‍🔬 H Hadiyanto, AH Afianti, UI Navi’a, NP Adetya, W Widayat, H Sutanto 📚 Journal of environmental chemical engineering 5 (5), 4559-4563, 2017	2017
9	Optimasi proses adsorbsi minyak goreng bekas dengan adsorbent zeolit alam: Studi pengurangan bilangan asam Google Scholar 👨‍🔬 S Widayat, K Haryani 📚 Jurnal Teknik Gelagar 17 (1), 77-82, 2006	2006
10	Potensi gliserol dalam pembuatan turunan gliserol melalui proses esterifikasi Google Scholar 👨‍🔬 AE Prasetyo, A Widhi, W Widayat 📚 Jurnal Ilmu Lingkungan UNDIP 10 (1), 26-31, 2012	2012
11	Pendampingan sertifikasi halal pada umkm hanum food (halal certification support in umkm hanum food) Google Scholar 👨‍🔬 W Widayat, S Sulardjaka, AN Al-Baarri, R Nurjannah 📚 Indonesia journal of Halal 3 (1), 83-87, 2020	2020
12	Preparation of heterogeneous CaO catalysts for biodiesel production Google Scholar 👨‍🔬 W Widayat, T Darmawan, H Hadiyanto, RA Rosyid 📚 Journal of physics: conference series 877 (1), 012018, 2017	2017
13	Optimization of flocculation efficiency and settling time using chitosan and eggshell as bio-flocculant in Chlorella pyrenoidosa harvesting process Google Scholar 👨‍🔬 H Hadiyanto, M Christwardana, W Widayat, AK Jati, SI Laes 📚 Environmental Technology & Innovation 24, 101959, 2021	2021
14	HALAL LOGISTICS PERFORMANCE AND CUSTOMER LOYALTY: FROM THE LITERATURE REVIEW TO A CONCEPTUAL FRAMEWORK. Google Scholar 👨‍🔬 I Masudin, FW Fernanda 📚 International Journal of Technology 9 (5), 2018	2018
15	Preparation and characterization of Anadara Granosa shells and CaCO3 as heterogeneous catalyst for biodiesel production Google Scholar 👨‍🔬 H Hadiyanto, SP Lestari, W Widayat 📚 Bulletin of Chemical Reaction Engineering and Catalysis 11 (1), 21-26, 2016	2016
16	The flocculation process of Chlorella sp. using chitosan as a bio-flocculant: Optimization of operating conditions by response surface methodology Google Scholar 👨‍🔬 H Hadiyanto, W Widayat, M Christwardana, ME Pratiwi 📚 Current Research in Green and Sustainable Chemistry 5, 100291, 2022	2022
17	The development of fly ash-supported CaO derived from mollusk shell of Anadara granosa and Paphia undulata as heterogeneous CaO catalyst in biodiesel … Google Scholar 👨‍🔬 H Hadiyanto, SP Lestari, A Abdullah, W Widayat, H Sutanto 📚 International Journal of Energy and Environmental Engineering 7 (3), 297-305, 2016	2016
18	Multi-Feedstock Biodiesel Production from Esterification of Calophyllum inophyllum Oil, Castor Oil, Palm Oil, and Waste Cooking Oil. Google Scholar 👨‍🔬 H Hadiyanto, AP Aini, W Widayat, K Kusmiyati, A Budiman, A Rosyadi 📚 International Journal of Renewable Energy Development 9 (1), 2020	2020
19	Biodiesel Production from Reutealis Trisperma Oil Using KOH Impregnated Eggshell as a Heterogeneous Catalyst Google Scholar 👨‍🔬 K Kusmiyati, D Prasetyoko, S Murwani, M Nur Fadhilah, TP Oetami, ... 📚 Energies 12 (19), 3714, 2019	2019
20	Performance evaluation of modified nanohybrid membrane polyethersulfone-nano ZnO (PES-nano ZnO) using three combination effect of PVP, irradiation of ultraviolet and thermal … Google Scholar 👨‍🔬 TD Kusworo, W Widayat, DP Utomo, YHS Pratama, RAV Arianti 📚 Renewable Energy 148, 935-945, 2020	2020
21	Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production Google Scholar 👨‍🔬 J Prameswari, W Widayat, L Buchori, H Hadiyanto 📚 Environmental Science and Pollution Research 30 (44), 98832-98847, 2023	2023
22	Real time-polymerase chain reaction (RT-PCR) sebagai alat deteksi DNA babi dalam beberapa produk non-pangan Google Scholar 👨‍🔬 W Widayat, TW Agustini, M Suzery, AN Al-Baarri, SR Putri, K Kurdianto 📚 Indonesia Journal of Halal 2 (1), 26-33, 2019	2019
23	Influence of desilication route of ZSM-5 zeolite in mesoporous zeolite supported calcium oxide catalyst for biodiesel production Google Scholar 👨‍🔬 NS Lani, N Ngadi, IM Inuwa, LA Opotu, ZY Zakaria, W Widayat 📚 Microporous and Mesoporous Materials 343, 112153, 2022	2022
24	Potency of microalgae as biodiesel source in Indonesia Google Scholar 👨‍🔬 H Hadiyanto, W Widayat, AC Kumoro 📚 International journal of renewable energy development 1 (1), 23-27, 2012	2012
25	Design of dual blockchain-based with point of authority for halal traceability system application on fresh meat-based supply chain Google Scholar 👨‍🔬 W Adhiwibowo, W Widayat, WA Syafei 📚 Results in Engineering 26, 105133, 2025	2025
26	Produksi Hidrogen dengan Memanfaatkan Sumber Daya Energi Surya dan Angin di Indonesia Google Scholar 👨‍🔬 MS Hasan, W Widayat 📚 Jurnal Energi Baru dan Terbarukan 3 (1), 38-48, 2022	2022
27	Diversifikasi tepung mocaf menjadi produk mie sehat di PT. Tepung Mocaf Solusindo Google Scholar 👨‍🔬 JP Yuliyandjaja, W Widayat, H Hadiyanto, M Suzery, IA Budianto 📚 Indonesia Journal of Halal 2 (2), 40-45, 2020	2020
28	Proses Perbaikan Produksi Dalam Pendampingan Sertifikasi Halal Bagi Paguyuban Usaha Kuliner Google Scholar 👨‍🔬 M Suzery, W Widayat, B Cahyono, AN Al-Baarri 📚 Indonesia Journal of Halal 2 (2), 53-57, 2020	2020
29	Biodiesel production by using CaO catalyst and ultrasonic assisted Google Scholar 👨‍🔬 W Widayat, T Darmawan, RA Rosyid, H Hadiyanto 📚 Journal of Physics: Conference Series 877 (1), 012037, 2017	2017
30	Effect of temperature and concentration of zeolite catalysts from geothermal solid waste in biodiesel production from used cooking oil by esterification–transesterification process Google Scholar 👨‍🔬 L Buchori, W Widayat, O Muraza, MI Amali, RW Maulida, J Prameswari 📚 Processes 8 (12), 1629, 2020	2020
31	Modification of magnetic nanoparticle lipase catalyst with impregnation of activated carbon oxide (ACO) in biodiesel production from PFAD (palm fatty acid distillate) Google Scholar 👨‍🔬 L Buchori, W Widayat, H Hadiyanto, H Satriadi, N Chasanah, ... 📚 Bioresource Technology Reports 19, 101137, 2022	2022
32	Copper and Lead Ions Removal by Electrocoagulation: Process Performance and Implications for Energy Consumption. Google Scholar 👨‍🔬 A Prasetyaningrum, D Ariyanti, W Widayat, B Jos 📚 International Journal of Renewable Energy Development 10 (3), 2021	2021
33	Pembuatan Katalis H-Zeolit dengan Impregnasi KI/KIO3 dan Uji Kinerja Katalis Untuk Produksi Biodiesel Google Scholar 👨‍🔬 LH Firdaus, AR Wicaksono, W Widayat 📚 Jurnal Teknologi Kimia dan Industri, 148-154, 2013	2013
34	Pemurnian minyak goreng bekas dengan menggunakan adsorbent zeolit dan bleaching earth Google Scholar 👨‍🔬 A Taufiq, A Hendro, W Widayat, L Edward 📚 Indonesia Journal of Halal 4 (1), 16-24, 2022	2022
35	Liquid waste processing of tofu industry for biomass production as raw material biodiesel production Google Scholar 👨‍🔬 W Widayat, J Philia, J Wibisono 📚 IOP Conference Series: Earth and Environmental Science 248 (1), 012064, 2019	2019
36	Preparation of MgO-CaO/SiO2 catalyst from dolomite and geothermal solid waste for biodiesel production. Google Scholar 👨‍🔬 W Widayat, NT Maheswari, W Fitriani, L Buchori, H Satriadi, K Kusmiyati, ... 📚 International Journal of Renewable Energy Development 12 (3), 541, 2023	2023
37	Analisis Pemahaman UMKM di Kota Semarang terhadap Kebijakan Produk Halal Google Scholar 👨‍🔬 W Widayat, M Suzery, HT Ardianto 📚 Jurnal Riptek 16 (2), 153-160, 2022	2022
38	Effect of pH, cationic inducer, and clam shells as bio-flocculant in the optimization of the flocculation process for enhanced microalgae harvesting using response surface … Google Scholar 👨‍🔬 H Hadiyanto, W Widayat, ME Pratiwi, M Christwardana, K Muylaert 📚 Environmental Pollutants and Bioavailability 34 (1), 338-351, 2022	2022
39	Production of fuels from HDPE and LDPE plastic waste via pyrolysis methods Google Scholar 👨‍🔬 EH Istoto, Widayat, S Saptadi 📚 E3S Web of Conferences 125, 14011, 2019	2019
40	Preparation of KI/hydroxyapatite catalyst from phosphate rocks and its application for improvement of biodiesel production Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, PWA Wardani, U Az Zuhra, J Prameswari 📚 Molecules 25 (11), 2565, 2020	2020
41	Enhanced anti-fouling behavior and performances of nano hybrid PES-SiO2 and PES-ZnO membranes for produced water treatment Google Scholar 👨‍🔬 TD Kusworo, AF Ismail, N Aryanti, W Widayat, Q Qudratun, DP Utomo 📚 Jurnal Teknologi (Sciences & Engineering) 79 (6), 2017	2017
42	Kinetic study on esterification of oleic acid with ultrasound assisted Google Scholar 👨‍🔬 DD Suprarukmi, BA Sudrajat 📚 Procedia Environmental Sciences 23, 78-85, 2015	2015
43	Response surface optimization of UV/H2O2-based photo-oxidative degradation of amoxicillin Google Scholar 👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat 📚 Results in Engineering 21, 101836, 2024	2024
44	Analisis Kualitas Udara pada Kawasan Transportasi, Industri, Perkotaan, Permukiman, dan Perdagangan di Kota Tegal Google Scholar 👨‍🔬 D Winatama, W Widayat, S Syafrudin 📚 Jurnal Ilmu Lingkungan 21 (2), 381-386, 2023	2023
45	Preparation of α-Fe2O3-Al2O3 catalysts and catalytic testing for biodiesel production Google Scholar 👨‍🔬 W Widayat, DA Putra, I Nursafitri 📚 Materials Today: Proceedings 13, 97-102, 2019	2019
46	Synthesis H-Zeolite catalyst by impregnation KI/KIO3 and performance test catalyst for biodiesel production Google Scholar 👨‍🔬 W Widayat, AR Wicaksono, LH Firdaus, N Okvitarini 📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012044, 2016	2016
47	Synthesis of zeolite X molecular sieve from geothermal solid waste Google Scholar 👨‍🔬 H Satriadi, B Cahyono, WIST Astuti, P Febrianti 📚 Materials today: proceedings 13, 137-142, 2019	2019
48	Synthesis method effect on the catalytic performance of acid–base bifunctional catalysts for converting low-quality waste cooking oil to biodiesel Google Scholar 👨‍🔬 M Mulyatun, J Prameswari, I Istadi, W Widayat 📚 Catalysis Letters 154 (8), 4837-4855, 2024	2024
49	Aluminum-based activation of natural zeolite for glycerol steam reforming Google Scholar 👨‍🔬 J Philia, W Widayat, S Sulardjaka, GA Nugroho, AN Darydzaki 📚 Results in Engineering 19, 101247, 2023	2023
50	Pengaruh tekanan kompaksi dan perekat terhadap karakteristik briket limbah daun cengkeh Google Scholar 👨‍🔬 AB Biantoro, W Widayat 📚 Jurnal Inovasi Mesin 3 (2), 18-28, 2021	2021
51	Entrepreneurial attitude and students business start-up intention: A partial least square modeling Google Scholar 👨‍🔬 W Widayat 📚 Jurnal Manajemen Dan Kewirausahaan 19 (1), 46-53, 2017	2017
52	Biodiesel production from rubber seed oil via esterification process Google Scholar 👨‍🔬 W Widayat, S Suherman 📚 International Journal of Renewable Energy Development 1 (2), 57-60, 2012	2012
53	Synthesis and characterization of physically mixed V2O5. CaO as bifunctional catalyst for methyl ester production from waste cooking oil Google Scholar 👨‍🔬 M Mulyatun, I Istadi, W Widayat 📚 International Journal of Renewable Energy Development 12 (2), 381, 2023	2023
54	Bio-oil and fuel gas production from agricultural waste via pyrolysis: a comparative study of oil palm empty fruit bunches (OPEFB) and rice husk Google Scholar 👨‍🔬 TD Kusworo, W Widayat, AF Mahadita, D Firizqina, DP Utomo 📚 Periodica Polytechnica Chemical Engineering 64 (2), 179-191, 2020	2020
55	Synthesis and catalytic evaluation of hematite (α-Fe2O3) magnetic nanoparticles from iron sand for waste cooking oil conversion to produce biodiesel through … Google Scholar 👨‍🔬 Widayat, DA Putra, I Nursafitri 📚 IOP conference series: materials science and engineering 509 (1), 012035, 2019	2019
56	Study of rendement of red ginger essential oil from red ginger waste by using steam distillation process Google Scholar 👨‍🔬 W Widayat, AS Dita, C Bambang, S Hantoro 📚 E3S Web of Conferences 73, 07002, 2018	2018
57	Pemanfaatan limbah cair industri tahu untuk produksi biomassa mikroalga nannochloropsis sp sebagai bahan baku biodiesel Google Scholar 👨‍🔬 W Widayat, H Hadiyanto 📚 Reaktor 15 (4), 253-260, 2015	2015
58	Pengaruh jenis ikan terhadap rendemen pembuatan gelatin dari ikan dan karakteristik gelatinnya Google Scholar 👨‍🔬 TW Agustini, W Widayat, M Suzery, YS Darmanto, I Mubarak 📚 Indonesia Journal of Halal 2 (2), 46-52, 2020	2020
59	Antioxidant activity and total phenolic content in Red Ginger (Zingiber officinale) based drinks Google Scholar 👨‍🔬 Widayat, B Cahyono, H Satriadi, S Munfarida 📚 IOP Conference Series: Earth and Environmental Science 102 (1), 012025, 2018	2018
60	Diethyl Ether Production Process with Various Catalyst Type Google Scholar 👨‍🔬 W Widayat, R Achmad, R Muhammad 📚 International Journal of Science and Engineering 4 (1), 6-10, 2013	2013
61	Response surface optimization of ciprofloxacin degradation using UV/O3 oxidation process Google Scholar 👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat, RA Baihaqi 📚 Results in Engineering 24, 103299, 2024	2024
62	Pengaruh Ukuran Partikel Dan Tekanan Kompaksi Terhadap Karakteristik Briket Kayu Jati Google Scholar 👨‍🔬 EI Briyartendra, W Widayat 📚 Jurnal Inovasi Mesin 1 (2), 18-29, 2019	2019
63	Biodiesel production from bulk frying oil with ultrasound assisted. Google Scholar 👨‍🔬 W Widayat, H Satriadi, O Yuariski, D Murwono	2013
64	Pemantauan kualitas udara kota tegal (studi kasus: Kecamatan tegal selatan, kecamatan tegal barat, kecamatan tegal timur) Google Scholar 👨‍🔬 A Pradifan, W Widayat, A Suprihanto 📚 Jurnal Ilmu Lingkungan 19 (1), 73-82, 2021	2021
65	UV irradiation and ozone treatment of κ-carrageenan: kinetics and products characteristics Google Scholar 👨‍🔬 A Prasetyaningrum, W Widayat, B Jos, Y Dharmawan, R Ratnawati 📚 Bulletin of Chemical Reaction Engineering & Catalysis 15 (2), 319-330, 2020	2020
66	Study of utilization liquid smoke and carrageenan as a natural antibacterial in manufacturing beef meatballs Google Scholar 👨‍🔬 W Widayat, N Arifiani S, N Yaqin, AN Al Baarri 📚 IOP Conference Series: Earth and Environmental Science 102 (1), 012060, 2018	2018
67	Kinetic Study on Ultrasound Assisted Biodiesel Production from Waste Cooking Oil. Google Scholar 👨‍🔬 HN Aulia, SB Sasongko 📚 Journal of Engineering & Technological Sciences 47 (4), 2015	2015
68	The effect of stacking sequence on the properties of hybrid agel/glass fiber reinforced polymer composite laminates Google Scholar 👨‍🔬 MI Nuryanta, RD Widodo, A Mujaki, Rusiyanto, Kriswanto, W Widayat, ... 📚 IOP Conference Series: Earth and Environmental Science 1381 (1), 012014, 2024	2024
69	Proses pengambilan minyak dari limbah padat biji karet dengan metode ekstraksi berpengaduk Google Scholar 👨‍🔬 A Wildan, I Hartati, W Widayat 📚 Majalah Ilmiah Momentum 9 (1), 2013	2013
70	Penentu perilaku berinvestasi Google Scholar 👨‍🔬 W Widayat 📚 Journal of Innovation in Business and Economics 1 (02), 2010	2010
71	Hadiyanto.(2017). Study on the effect of different concentration of Spirulina platensis paste added into dried noodle to its quality characteristics Google Scholar 👨‍🔬 TW Agustini, WF Ma’ruf, W Widayat, A Wibowo 📚 IOP Conf. Series: Earth and Environmental, 1-9, 0
72	Analisis kesulitan siswa dalam menyelesaikan masalah matematika pada materi fungsi Google Scholar 👨‍🔬 S Handayani, AH Rosyidi, W Widayat 📚 Jurnal Pendidikan Matematika 1 (4), 1-15, 2024	2024
73	Hydrocracking of coconut oil on the NiO/Silica-rich zeolite synthesized using a quaternary ammonium surfactant Google Scholar 👨‍🔬 H Susanto, A Darmawan 📚 Indonesian Journal of Chemistry 21 (2), 361-375, 2021	2021
74	Photochemical oxidation process of copper from electroplating wastewater: Process performance and kinetic study Google Scholar 👨‍🔬 A Prasetyaningrum, T Riyanto, M Djaeni, W Widayat 📚 Processes 8 (10), 1276, 2020	2020
75	Production of Fuels From High Density Polyethylene and Low Density Polyethylene Plastic Wastes via Pyrolysis Methods Google Scholar 👨‍🔬 EH Istoto, W Widayat, S Saptadi 📚 Iranica Journal of Energy & Environment 10 (3), 185-189, 2019	2019
76	Biodiesel production from multi feedstock as feed with direct ultrasound assisted Google Scholar 👨‍🔬 Widayat, H Satriadi, NF Nafiega, R Dipo, Okvitarini, AJ Alimin, MFM Ali 📚 AIP Conference Proceedings 1699 (1), 030020, 2015	2015
77	Ultrasound assisted esterification of rubber seed oil for biodiesel production Google Scholar 👨‍🔬 F Berkah, K Tamtomo 📚 International Journal of Renewable Energy Development 1 (1), 1-5, 2012	2012
78	Studi Awal Pengembangan Jaringan Inkubator Teknologi & Bisnis Pada Institusi Pendidikan Tinggi Di Indonesia Google Scholar 👨‍🔬 W Widayat, SI Jamaran 📚 Jurnal Matematika Sains dan Teknologi 10 (1), 47-53, 2009	2009
79	Wibowo, and Hadiyanto, 2013. Study on production process of biodiesel from rubber seed (hevea brasiliensis) by in situ (trans) esterification method with acid catalyst Google Scholar 👨‍🔬 ADK Widayat 📚 Energy Procedia 32, 64-73, 0
80	Empirical model of public participation intention in biomass project based on integrated TAM-TPB model Google Scholar 👨‍🔬 M Triani, A Nurfanani, IA Aditya, A Susanty, KI Cahyaningrum, W Widayat, ... 📚 Scientific Reports 15 (1), 6602, 2025	2025
81	Pengukuran Kandungan DNA Babi Dalam Berbagai Produk Pangan Dengan Metode Real Time-Polymerase Chain Reaction (RT-PCR) Google Scholar 👨‍🔬 RY Luluk, W Widayat, AT Winarni, S Meiny, AA Ni’matullah 📚 Indonesia Journal of Halal 3 (2), 129-133, 2021	2021
82	Fabrication and characterization of nano hybrid cellulose acetate-nanoTiO2/crosslinked polyvinyl alcohol coated membrane for crude clove oil purification Google Scholar 👨‍🔬 TD Kusworo, W Widayat, DP Utomo 📚 Periodica Polytechnica Chemical Engineering 64 (3), 304-319, 2020	2020
83	Synthesis of silica-rich zeolite using quaternary ammonium-based templates Google Scholar 👨‍🔬 S Sriatun, H Susanto, W Widayat, A Darmawan, S Sriyanti, R Kurniasari, ... 📚 Journal of Physics: Conference Series 1524 (1), 012087, 2020	2020
84	Pengaruh umpan terhadap keefektifan pitfall trap untuk mendukung praktikum ekologi hewan di Laboratorium Ekologi FMIPA Unsyiah Google Scholar 👨‍🔬 AS Jaya, W Widayat 📚 Jurnal Bioleuser 2 (3), 2018	2018
85	Karakteristik Briket Cetak Panas Berbahan Kayu Sengon Dengan Penambahan Arang Tempurung Kelapa Google Scholar 👨‍🔬 D Pujasakti, W Widayat 📚 Sainteknol: Jurnal Sains Dan Teknologi 16 (1), 21-32, 2018	2018
86	Biofuel production by catalytic cracking method using Zn/HZSM-5 catalyst Google Scholar 👨‍🔬 SA Saputro, EM Ginting, AN Annisa, H Satriadi 📚 ARPN Journal of Engineering and Applied Sciences 12 (22), 6347-6351, 2017	2017
87	Pembuatan biodiesel dari minyak goreng bekas dengan proses CATALYTIC CRACKING Google Scholar 👨‍🔬 Z Ida	2015
88	Evaluation and modification of processes for bioethanol separation and production Google Scholar 👨‍🔬 PS Johnner, HS Tatang 📚 International Journal of Renewable Energy Development 1 (1), 15-22, 2012	2012
89	Effect of Hydrogen Co-Firing with Natural Gas on Thermal Efficiency and CO2 Emissions in Gas Turbine Power Plant Google Scholar 👨‍🔬 RR Nugraha, S Silviana, W Widayat 📚 Hydrogen 6 (1), 18, 2025	2025
90	Optimization of sequential microwave-ultrasonic-assisted extraction of flavonoid compounds from Moringa oleifera Google Scholar 👨‍🔬 A Prasetyaningrum, W Widayat, B Jos, R Ratnawati, T Riyanto, ... 📚 Trends in Sciences 20 (1), 6401-6401, 2023	2023
91	Life cycle assessment for evaluating the energy balance of the multi-feedstock biodiesel production process in Indonesia Google Scholar 👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, J Adiansyah, ... 📚 International Journal of Ambient Energy 44 (1), 1255-1270, 2023	2023
92	Pendampingan Sertifikasi Laik Sehat Makanan Bagi Restoran Selaras Dalam Rangka Persiapan Sertifikasi Halal Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, AN Al-Baarri, SR Putri 📚 Indonesia Journal Of Halal 2 (2), 58-63, 2020	2020
93	The Color Analysis of Noodle Made from Modified Cassava Flour Google Scholar 👨‍🔬 A Ni’matullah Al-Baarri, Widayat, B Cahyono, A Baety Nirbaya, ... 📚 IOP Conference Series: Earth and Environmental Science 518 (1), 012041, 2020	2020
94	Production of biodiesel from waste cooking oil using heterogeneous catalysts KI/γ-Al2O3 Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, E Purbaningdyah, I Suryanto, A Budiman, ... 📚 Journal of Environmental Engineering and Science 15 (3), 107-112, 2020	2020
95	Effects Of Bond’s Interest Rate, Rating And Maturity Time Toward Bond’S Yields Google Scholar 👨‍🔬 A Mega, W Widayat 📚 Manajemen Bisnis 9 (1), 2019	2019
96	Preparation and Characterization of NiMo/Al2O3Catalyst for Hydrocracking Processing Google Scholar 👨‍🔬 A Widiyadi, G Adil Guspiani, J Riady, R Andreanto, S Dea Chaiunnisa, ... 📚 E3S Web of Conferences 31, 03011, 2018	2018
97	The effect of adding CTAB template in ZSM-5 synthesis Google Scholar 👨‍🔬 W Widayat, AN Annisa 📚 AIP Conference Proceedings 1904 (1), 020061, 2017	2017
98	Proses produksi triasetin dari gliserol dengan katalis asam sulfat Google Scholar 👨‍🔬 W Widayat, H Satriado, A Abdullah, IWK Handono 📚 Jurnal Teknik Kimia Indonesia 11 (4), 192-198, 2013	2013
99	Pengaruh Waktu Dealuminasi dan Jenis Sumber Zeolit Alam terhadap Kinerja H-Zeolit untuk Proses Dehidrasi Etanol Google Scholar 👨‍🔬 W Widayat, A Roesyadi, M Rachimoellah 📚 Reaktor 13 (1), 51-57, 2010	2010
100	Chemical and Microstructural Changes in Reclaimed Asphalt Pavement Aggregates by Pyrolysis Google Scholar 👨‍🔬 M Qomaruddin, HA Lie, Purwanto, Widayat 📚 Arabian Journal for Science and Engineering 49 (10), 13429-13438, 2024	2024
101	Penggunaan ekstrak kulit pisang ambon sebagai baku pembuatan moutwash herbal Google Scholar 👨‍🔬 TN Banowati, S Silviana, W Widayat 📚 Indonesia journal of halal 6 (1), 27-33, 2023	2023
102	Dual Blockchain Framework for Halal Food Safety and Tracebility Concern With Internet of Things Google Scholar 👨‍🔬 W Adhiwibowo, W Widayat, WA Syafei 📚 2023 International Conference on Technology, Engineering, and Computing …, 2023	2023
103	Synthesis of zeolite catalyst from geothermal solid waste for crude glycerol dehydration to acrolein Google Scholar 👨‍🔬 W Widayat, J Philia, T Farsha, F Rifaldi 📚 Key Engineering Materials 849, 130-136, 2020	2020
104	Process integration of sulfuric acid plant based on contact process Google Scholar 👨‍🔬 M Alhanif, G Sanyoto, W Widayat 📚 Frontiers in Heat and Mass Transfer (FHMT) 15 (1), 2020	2020
105	The browning value changes and spectral analysis on the Maillard reaction product from glucose and methionine model system Google Scholar 👨‍🔬 AN Al-Baarri, AM Legowo, Widayat 📚 IOP conference series: earth and environmental science 102 (1), 012003, 2018	2018
106	Ultrasound Assisted in Situ Esterification of Rubber Seeds Oil for Biodiesel Production Google Scholar 👨‍🔬 H Hadiyanto, W WIdayat, A Duma 📚 International Journal of Engineering 29 (12), 1635-1641, 2016	2016
107	Surface modification of ultra thin PES-zeolite using thermal annealing to increase flux and rejection of produced water treatment Google Scholar 👨‍🔬 TD Kusworo, Widayat, AW Pradini, YP Armeli 📚 AIP conference proceedings 1699 (1), 040015, 2015	2015
108	Ozone-based Advanced Oxidation Process for pharmaceutical contamination in wastewater: A review Google Scholar 👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat 📚 E3S Web of Conferences 605, 03058, 2025	2025
109	Performance of NiMo-Al2O3 catalyst in biokerosene production via hydrocracking of dirty palm oil Google Scholar 👨‍🔬 L Buchori, W Widayat, O Muraza, A Prasetyaningrum, J Prameswari, ... 📚 International Journal of Ambient Energy 43 (1), 7987-7997, 2022	2022
110	Pengaruh Katalis Genteng Tanah Liat dalam Proses Produksi Bahan Bakar Cair dari Limbah Ban Bekas dengan Proses Pirolisis Google Scholar 👨‍🔬 AA Arahim, W Widayat, H Hadiyanto 📚 Jurnal Energi Baru dan Terbarukan 1 (2), 62-67, 2020	2020
111	Improvement in nano-hybrid membrane PES–nanosilica performance using ultra violet irradiation and acetone–ethanol immersion for produced water treatment Google Scholar 👨‍🔬 TD Kusworo, N Aryanti, Qudratun, DP Utomo, Widayat 📚 International Journal of Environmental Science and Technology 16 (2), 973-986, 2019	2019
112	Penentuan waktu perendaman sel (fase mitosis) akar bawang merah (Allium ascalonicum L.) menggunakan safranin untuk mendukung praktikum biologi Google Scholar 👨‍🔬 FN Abdullah, AS Jaya, W Widayat 📚 Jurnal Bioleuser 1 (3), 86-91, 2017	2017
113	Rancang Bangun Dan Uji Alat Proses Peningkatan Minyak Cengkeh Pada Klaster Minyak Atsiri Kabupaten Batang Google Scholar 👨‍🔬 W Widayat, B Cahyono, N Ngadiwiyana 📚 Jurnal Ilmu Lingkungan Undip 10 (2), 64-69, 2012	2012
114	Proses Produksi Etanol oleh Saccharomyces Cerivisiae dengan Operasi Kontinyu pada Kondisi Vakum Google Scholar 👨‍🔬 T Supriyanto, W Wahyudi 📚 Jurusan Teknik Kimia Fakultas Teknik, 2010	2010
115	Widayat,(2009) Google Scholar 👨‍🔬 L Buchori 📚 Pembuatan biodiesel dari minyak goreng bekas Dengan Proses Catalytic …, 0
116	Evaluating the environmental impacts at the end point level of the biodiesel production process from multiple feedstocks in Indonesia through life cycle assessment methodology Google Scholar 👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, JS Adiansyah, ... 📚 Waste and Biomass Valorization 14 (9), 3115-3131, 2023	2023
117	Oil and gas characteristics of coal with pyrolysis process Google Scholar 👨‍🔬 Widayat, H Satriadi, LP Wibawa, GF Hanif, M Qomaruddin 📚 AIP Conference Proceedings 2453 (1), 020077, 2022	2022
118	Palm oil milling effluent (POME) waste processing by using microalgae Chlamydomonas sp Google Scholar 👨‍🔬 R Yonas, U Irzandi, H Satriadi, W Widayat, M Christwardana, H Hadiyanto 📚 Journal of Bioresources and Environmental Sciences 1 (2), 63-69, 2022	2022
119	Study of Energy Integration in Chlorobenzene Production Process Using Pinch Technology. Google Scholar 👨‍🔬 W Widayat, MTMN Saeed, S Sulardjaka, A Suprihanto, P Wahyudi 📚 International Journal on Engineering Applications 10 (6), 2022	2022
120	Pengaruh konsentrasi ragi pada pembuatan inositol dari lamtoro gung dengan proses fermentasi Google Scholar 👨‍🔬 W Widayat, Y Nasir, AMIA Asfar 📚 Indonesia Journal of Halal 4 (1), 25-31, 2021	2021
121	Heat integration analysis of preliminary plant design of glycerol conversion into propylene glycol Google Scholar 👨‍🔬 T Riyanto, FMY Putri, W Widayat 📚 International Journal on Engineering Applications 7 (6), 204-209, 2019	2019
122	Thermoelectric application in energy conservation Google Scholar 👨‍🔬 A Muhamad Zuhud, F Mochammad, W Widayat 📚 E3S Web of Conferences 73, 01009, 2018	2018
123	Study of Polymeric Membranes Potential for Eugenol Purification from Crude Clove leaf Oil Google Scholar 👨‍🔬 TD Kusworo, D Soetrisnanto, W Widayat, B Budiyono, DP Utomo 📚 ASEAN Journal of Chemical Engineering 18 (2), 81-92, 2018	2018
124	Pengembangan Sistem Informasi Manajemen Rekrutmen Asisten Laboratorium Studi Kasus: Laboratorium Terpadu Teknik Informatika UII Google Scholar 👨‍🔬 FI Setiawan, AR Adiningsih, W Widayat, F Wijayanto 📚 Jurnal Seminar Nasional Aplikasi Teknologi Informasi, 2012	2012
125	Optimasi Pengambilan Minyak Dari Limbah Padat Biji Karet Dengan Metode Sokhletasi Google Scholar 👨‍🔬 A Wildan, I Hartati, W Widayat 📚 Majalah Ilmiah Momentum 8 (2), 2012	2012
126	Pengaruh konsentrasi HCl dan jenis reaktan dalam pembuatan katalis zeolit untuk proses dehidrasi dari zeolit alam Google Scholar 👨‍🔬 M Widayat, A Roesyadi, M Rachimoellah 📚 Proceeding on Seminar Nasional Rekayasa Kimia dan Proses. Semarang: Chemical …, 2008	2008
127	A., dan Anggraeni, H. 2012. Proses Produksi Katalis Zeolit X Dan Uji Aktifitas Dalam Proses Penukaran Ion Kalsium Google Scholar 👨‍🔬 S Widayat 📚 Jurnal Teknik 33, 0852-169, 0
128	Mapping analysis of biomass potential on Java Island for supporting power plant: A review Google Scholar 👨‍🔬 M Triani, A Nurfanani, IA Aditya, W Widayat, A Susanty, I Kristianingsih, ... 📚 E3S Web of Conferences 519, 02012, 2024	2024
129	Zeolite addition in microalgae Chlorella sp. for treatment of bacteria contaminated vinasse Google Scholar 👨‍🔬 GPI Budianto, YM Wibowo, H Hadiyanto, W Widayat 📚 Environmental Quality Management 33 (3), 121-127, 2024	2024
130	Karakteristik Bahan Alternatif Kampas Rem dari Komposit Berpenguat Serbuk Serbuk Kayu Jati, Serbuk Tempurung Kelapa, dan Serbuk Kuningan dengan Variasi Suhu Post Curing Google Scholar 👨‍🔬 C Pramono, W Widayat, A Suprihanto 📚 Jurnal Profesi Insinyur Indonesia 1 (7), 235-241, 2024	2024
131	Sistem Transportasi Penumpang Untuk Rute Yogyakarta–Bandara Yogyakarta International Airport Kulon Progo Google Scholar 👨‍🔬 H Yudariansyah, W Widayat, S Sulardjaka 📚 Jurnal Profesi Insinyur Indonesia 1 (1), 9-17, 2023	2023
132	Amorphous adsorbent from geothermal solid waste for methylene blue removal Google Scholar 👨‍🔬 J Philia, W Widayat, S Sulardjaka 📚 Journal of Environmental Engineering and Science 18 (1), 1-9, 2023	2023
133	Effect of temperature, time, and acid concentration on ph hydrolysis of gelatin with ultrasonic method Google Scholar 👨‍🔬 W Widayat, TW Agustini, M Suzery, YL Rahmania, F Meutia, GSI Tarigan 📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023	2023
134	Effect of Temperature and Tapioca Flour Concentration on Manufacture of CaO·SiO2 Heterogeneous Catalyst Pellets Made from Brick Burning Ash for Biodiesel … Google Scholar 👨‍🔬 N Iskandar, W Widayat, S Sulardjaka, S Syaiful, F Fuadi, F Handayani 📚 Catalysts 13 (6), 945, 2023	2023
135	Biodiesel production from used cooking oil with assisted sun light and Fresnel solar concentrator Google Scholar 👨‍🔬 Widayat, Abdullah, SB Sasongko, DH Wardhani, A Hadiyarto, A Nugroho, ... 📚 AIP Conference Proceedings 2197 (1), 030001, 2020	2020
136	Biodiesel production from waste cooking oil by using zirconia catalyst Google Scholar 👨‍🔬 K Nisa, DAA Salwa, A Hasanah, Widayat 📚 AIP Conference Proceedings 2217 (1), 030120, 2020	2020
137	Starch production from red ginger (Zinggiber officinale Rosc.) Google Scholar 👨‍🔬 W Widayat, H Striadi, S Syaiful, A Kurnia, F Driastuti 📚 Jurnal Bahan Alam Terbarukan 7 (1), 96-99, 2018	2018
138	Production of Industry Salt with Sedimentation–Microfiltration Process: Optimazation of Temperature And Concentration By Using Surface Response Methodology Google Scholar 👨‍🔬 W Widayat 📚 Teknik 30 (1), 11-18, 2009	2009
139	The effect of time dealumination and solvent concentration in synthesis of zeolite catalyst and catalytic test for diethyl ether production process Google Scholar 👨‍🔬 Widayat, A Roesyadi, M Rachimoellah 📚 AIP Conference Proceedings 1169 (1), 106-112, 2009	2009
140	Prediction of Performance and Emissions Diesel Engines Fueled-Biodiesel Using Artificial Neural Network (ANN) Resilient Backpropagation Algorithm (Rprop) Google Scholar 👨‍🔬 R Amrulloh, W Widayat, B Warsito 📚 International Journal of Artificial Intelligence Research 8 (2), 212-230, 2024	2024
141	Implementasi dan pelatihan penggunaan sistem informasi presensi kehadiran guru pada MIM Taraman Sragen Google Scholar 👨‍🔬 D Gunawan, Y Sidiq, W Widayat, DP Muslimawati, CD Apriliana, ... 📚 Abdi Teknoyasa, 313-318, 2024	2024
142	Modification of charcoal briquette using binding agents improving the product quality: A review Google Scholar 👨‍🔬 S Silviana, H Hadiyanto, W Widayat, F Dalanta, AN Sa’adah 📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023	2023
143	Pengaruh Komposisi Bahan Terhadap Mechanical Properties Pada Crucible Untuk Peleburan Aluminium Google Scholar 👨‍🔬 R Rusiyanto, DF Fitriyana, RD Widodo, W Widayat, H Yudiono, ... 📚 Bookchapter Kimia Universitas Negeri Semarang, 197-221, 2022	2022
144	Optimization of biodiesel production from waste cooking oil using α-Fe2O3/HAP catalyst via simultaneous esterification-transesterification reaction Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, L Buchori, J Prameswari, RM Jeksen, ... 📚 Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 44 …, 2022	2022
145	Selection and cultivation of microalgae for CO2 biofixation Google Scholar 👨‍🔬 Widayat, M Suzery, H Satriadi, Wahyudi, J Philia 📚 IOP Conference Series: Materials Science and Engineering 1053 (1), 012132, 2021	2021
146	The effect of impregnated type at kaolin catalyst on biodiesel production from used cooking oil Google Scholar 👨‍🔬 W Widayat, N Okvitarini, J Philia 📚 AIP Conference Proceedings 2197 (1), 030009, 2020	2020
147	Optimum NaHCO3-to-vinasse ratio for Chlorella pyrenoidosa cultivation and poly-b-hydroxybutyrate (PHB) production Google Scholar 👨‍🔬 GPI Budianto, YM Wibowo, H Hadiyanto, W Widayat 📚 Desalination and Water Treatment 207, 352-360, 2020	2020
148	Peningkatan produksi mocaf dengan rancang bangun alat pemotong Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, H Satriadi, M Suzery, IA Budianto 📚 Jurnal Ilmu Lingkungan 17 (3), 515-521, 2019	2019
149	Assessing the motives and gratification of virtual community Google Scholar 👨‍🔬 W Widayat 📚 Journal of Innovation in Business and Economics 3 (02), 73-82, 2019	2019
150	E-consumer behavior: The roles of attitudes, risk perception on shopping intention-behavior Google Scholar 👨‍🔬 W Widayat 📚 First Padang International Conference On Economics Education, Economics …, 2018	2018
151	Pelatihan Perancangan Komponen Otomotif Berbasis Autodesk Inventor Terhadap Kompetensi Peserta Didik SMK N 7 Semarang Google Scholar 👨‍🔬 AM Khoiron, DH Al-Janan, W Widayat 📚 Prosiding Seminar Nasional Kolaborasi Pengabdian kepada Masyarakat 1 (1 …, 2018	2018
152	Optimization of eugenol extraction from clove oil using response surface methodology. Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana	2015
153	Optimization Process of H-Zeolite Catalyst Preparation with Surface Response Methods Google Scholar 👨‍🔬 W Widayat, H Susanto, H Satriadi 📚 Green Chemistry Proceeding Of 9th Joint Conference on Chemistry, 124-129, 2014	2014
154	Pembuatan Biodiesel dari Minyak Goreng Menggunakan Katalis KOH dengan Penambahan Ekstrak Jagung Google Scholar 👨‍🔬 N Okvitarini, M Hidayah, H Satriadi, W Widayat 📚 Jurnal Teknologi Kimia dan Industri 2 (2), 24-29, 2013	2013
155	Optimasi Proses Pembuatan Biodiesel Berbantukan Gelombang Ultrasonik dari Blending Minyak Kelapa Sawit (Crude Palm Oil) dan Minyak Jarak (Jatropha Curcas Oil) Google Scholar 👨‍🔬 A Baharsyah, S Supriyandi, H Satriadi, W Widayat 📚 Jurnal Teknologi Kimia dan Industri 2 (2), 130-137, 2013	2013
156	Proses Produksi Katalis Zeolit X Dan Uji Aktifitas Dalam Proses Penukaran Ion Kalsium Google Scholar 👨‍🔬 W Widayat, AS DP, H Anggraeni 📚 Teknik 33 (1), 4-7, 2012	2012
157	Producing sulfur coated urea by fluid bed wet coating method: drying kinetics and product quality Google Scholar 👨‍🔬 W Suherman, M Djaeni 📚 Int. Rev. Chem. Eng., 2010	2010
158	Effect of HCl concentration and reactant type in the zeolite catalysts production for dehydration process of natural zeolites Google Scholar 👨‍🔬 M Widayat, A Roesyadi, M Rachimoellah 📚 Proceeding on Seminar Nasional Rekayasa Kimia dan Proses. Chemical …, 2008	2008
159	Studi Pengurangan Bilangan Asam, Bilangan Peroksida dan Absorbansi dalam Proses Pemurnian Minyak Goreng Bekas dengan Zeolit Alam Aktif Google Scholar 👨‍🔬 W Widayat 📚 Jurnal Rekayasa Kimia & Lingkungan 6 (1), 7-12, 2007	2007
160	Co-firing simulations with blending of low range coal and medium range coal on the performance of 615 MW capacity steam power plant and Indonesia carbon trading review Google Scholar 👨‍🔬 K Apriliana Margawadi, Widayat, S Widodo Agung Suedy 📚 E3S Web of Conferences 605, 01005, 2025	2025
161	Characterization of Edible Film Made from Glucomannan Konjac Flour Modified Polyvinyl Alcohol (PVA) and Sorbitol as Plasticizer Google Scholar 👨‍🔬 H Satriadi, W Widayat, BV Jonfita, NS Listyawijayanti 📚 Journal of Bioresources and Environmental Sciences 4 (1), 46-54, 2025	2025
162	Comparative Study of Airport Layer Thickness Planning Between US Army Corp Graphical Method and Federal Aviation Administration (FAA) PCN-ACN and PCR-ACR Method Google Scholar 👨‍🔬 WA Fistcar, B Sudarsono, W Widayat, AR Herlambang 📚 MEDIA KOMUNIKASI TEKNIK SIPIL 30 (1), 27-35, 2024	2024
163	Dunaliella salina Harvesting Using Spiral Electrocoagulation and Parameters Optimization Using Response Surface Method Google Scholar 👨‍🔬 H Hadiyanto, M Christwardana, W Widayat, P Purwono, MA Budihardjo 📚 International Journal of Engineering 37 (12), 2489-2498, 2024	2024
164	Optimasi Komposisi MDEA dan MEA Sebagai Absorbent untuk Proses Penghilangan CO2 dalam Produksi Gas di Lapangan A Google Scholar 👨‍🔬 H Sussatrio, H Hadiyanto, W Widayat 📚 Eksergi 21 (1), 29-37, 2024	2024
165	Techno-economic study on the application of reverse osmosis technology in the process of boiler feed water demineralization PT Puncak Jaya Power 3x65 MW Google Scholar 👨‍🔬 L Lolo Bunga, Widayat, S Saptadi 📚 E3S Web of Conferences 519, 03012, 2024	2024
166	Sintesis, Karakterisasi dan Pengujian Katalis CaO-MgO/Fe2O3 dari Dolomit dan Pasir Besi untuk Pembuatan Biodiesel dari Minyak Goreng Bekas Google Scholar 👨‍🔬 W Widayat, MAP Arman, E Syarief, L Buchori, S Sulardjaka 📚 TEKNIK 45 (1), 91-100, 2024	2024
167	Pengolahan Limbah Bahan Berbahaya dan Beracun (B3) dengan Teknologi Insinerasi pada Fasilitas Pengelolaan Limbah Teknologi Insinerasi pada Fasilitas Pengelolaan Limbah Terpadu … Google Scholar 👨‍🔬 S Aji, W Widayat, DH Wardhani 📚 Jurnal Profesi Insinyur Indonesia 2 (1), 17-25, 2024	2024
168	Pelaksanaan Pembangunan Jembatan Penghubung RSUD Bendan Kota Pekalongan Google Scholar 👨‍🔬 V Ramadhani, YA Priastiwi, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 2 (2), 104-110, 2024	2024
169	Analisis Efisiensi Eksergi Water Tube Boiler Pada Unit Penyediaan Steam di Salah Satu Plant Gas Processing Aceh, Indonesia Google Scholar 👨‍🔬 AW Prasetyo, W Widayat, MSKTS Utomo 📚 Eksergi 21 (3), 209-219, 2024	2024
170	Efektivitas pemanfaatan MyUNNES-Keuangan konten aset dalam pengelolaan aset PTNBH Google Scholar 👨‍🔬 W Widayat, A Mundzir, K Budiman 📚 ULIL ALBAB: Jurnal Ilmiah Multidisiplin 3 (11), 70-83, 2024	2024
171	HYDROGEN PRODUCTION FROM ETHANOL BY STEAM REFORMING OVER NICKEL AND COBALT GEOTHERMAL WASTE SUPPORTED CATALYST. Google Scholar 👨‍🔬 J Philia, W Widayat, S Sulardjaka 📚 Rasayan Journal of Chemistry 16 (1), 2023	2023
172	PENGARUH DURASI PENCAMPURAN TERHADAP MECHANICAL PROPERTIES CRUCIBLE PELEBURAN ALUMINIUM Google Scholar 👨‍🔬 R Rusiyanto, DF Fitriyana, RD Widodo, W Widayat, S Triyanto, MS Ilham, ... 📚 Bookchapter Kimia Universitas Negeri Semarang, 39-64, 2022	2022
173	Modifikasi pembuatan garam industri dari air laut dengan metode pengendapan-mikrofiltrasi Google Scholar 👨‍🔬 A Elysia, D Sanjaya, W Widayat, K Kusmiyati 📚 Indonesia Journal of Halal 4 (2), 40-51, 2022	2022
174	Synthesis of nickel-cobalt impregnated catalyst using geothermal waste for hydrogen production Google Scholar 👨‍🔬 J Philia, W Widayat, S Sulardjaka 📚 AIP Conference Proceedings 2453 (1), 020074, 2022	2022
175	Evaluasi Perancangan Pengering Surya Hibrid untuk Produk Pertanian dan Pangan Google Scholar 👨‍🔬 S Suherman, W Widayat, S Silviana 📚 Indonesia Journal of Halal 5 (2), 140-150, 2022	2022
176	Potential of solid waste conversion into gelatin in the fisheries industry of Indonesia Google Scholar 👨‍🔬 P Priyosetyoko, W Widayat, M Suzery, TW Agustini 📚 Indonesia Journal of Halal 5 (2), 112-139, 2022	2022
177	Mapping literature of reclaimed asphalt pavement using bibliometric analysis by VOSviewer Google Scholar 👨‍🔬 M Qomaruddin, HA Lie, Widayat, BH Setiadji, MA Wibowo 📚 International Conference on Rehabilitation and Maintenance in Civil …, 2021	2021
178	Implementasi Jaminan Produk Halal Bagi Jaringan Pengusaha Muslim Indonesia dan Saudagar Muhammadiyah Kota Semarang Google Scholar 👨‍🔬 H Hadiyanto, W Widayat, S Sulardjaka, AN Al-Baari 📚 Indonesia Journal of Halal 4 (2), 62-66, 2021	2021
179	Strategi Pengembangan Sektor Pertanian dalam Upaya Menjaga Ketahanan Pangan Nasional Google Scholar 👨‍🔬 W Widayat 📚 Bestari, 246522, 2020	2020
180	Liquid fuel production from motorized vehicle tires with pirolysis process Google Scholar 👨‍🔬 AA Arahim, Widayat, Hadiyanto 📚 AIP Conference Proceedings 2296 (1), 020004, 2020	2020
181	Kurdianto Google Scholar 👨‍🔬 ATW Widayat, M Suzery, AN Al-Baarri, SR Putri 📚 Real Time-Polymerase Chain Reaction (RT-PCR) sebagai alat deteksi DNA babi …, 2019	2019
182	The characteristic of Thermoelectric Energy Generator module installed at the wall of the prime stove Google Scholar 👨‍🔬 AM Zuhud, W Widayat, F Mochammad 📚 2019 International Conference on Technologies and Policies in Electric Power …, 2019	2019
183	The effect of KI and KIO3 impregnation on prepared hydroxyapatite catalyst on biodiesel production Google Scholar 👨‍🔬 PWA Wardani, J Cahyonugroho, MPP Wibowo, Widayat 📚 AIP Conference Proceedings 2202 (1), 020055, 2019	2019
184	Increasing separation performance of pes' membrane via combination of polymer composition and uv irradiation for produced water treatment Google Scholar 👨‍🔬 TD Kusworo, RA Anggita, TAD Setyorini 📚 ARPN Journal of Engineering and Applied Sciences 12 (1), 244-249, 2017	2017
185	The optimization process of biodiesel production using multiple feedstock (CPO and Jatropha) with assistance of ultrasound at 40 kHz Google Scholar 👨‍🔬 B Fajar, Wilis, Widayat 📚 AIP Conference Proceedings 1737 (1), 060013, 2016	2016
186	Biofiksasi CO2 Oleh Mikroalga Chlamydomonas sp dalam Photobioreaktor Tubular Google Scholar 👨‍🔬 H Hadiyanto, W Widayat 📚 Reaktor 15 (1), 37-42, 2015	2015
187	Regenerated silica gel as stationary phase on vacuum column chromatography to purify temulawak’s extracts Google Scholar 👨‍🔬 B Cahyono, RD Maduwu, Widayat, M Suzery 📚 AIP Conference Proceedings 1699 (1), 060022, 2015	2015
188	Peningkatan Kualitas Dan Proses Pembuatan Biodiesel Dari Blending Minyak Kelapa Sawit (Palm Oil) Dan Minyak Kelapa (Coconut Oil) Dan Bantuan Gelombang Ultrasonik Google Scholar 👨‍🔬 H Satriadi, F Nafiega, W Widayat, R Dipo 📚 Media Komunikasi Ilmu dan Profesi Bidang Kerekayasaan 35, 2014	2014
189	Optimization in Eugenol Production from Clove Oil with Saponification–Neutralization Process by using Response Surface Methods Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana 📚 Prosiding International Seminar on Chemical Engineering In conjunction with …, 2014	2014
190	Proses Reaksi Gliserol Dan Asam Benzoat Dengan Menggunakan Katalis Asam Sulfat Google Scholar 👨‍🔬 EP Ari, W Anggra 📚 Jurnal Teknologi Kimia dan Industri 1 (1), 118-123, 2012	2012
191	Modelling The Behaviour Of Household’S Investment Google Scholar 👨‍🔬 W Widayat, W Wahjoedi, M Syafiâ 📚 Economic Journal of Emerging Markets, 165-177, 2011	2011
192	Optimasi Proses Aktivasi Katalis Zeolit Alam Dengan Uji Proses Dehidrasi Etanol Google Scholar 👨‍🔬 A Maygasari, A Happy Jestyssa, H Satriadi, W Widayat	2010
193	Kinetic study of the utilisation of different substrates to lactic acid using Lactobacillus delbrueckii Google Scholar 👨‍🔬 A Abdullah, H bin Mat, W Widayat 📚 METANA 6 (01), 2005	2005
194	Hadiyanto and Sasongko SB 2015 Google Scholar 👨‍🔬 W Widayat, HN Aulia 📚 Journal of Engineering and Technological Sciences 47, 374-388, 0
195	W, Arifiani SN, Yaqin. N and A. N. Al Baarri.(2017). Study of utilization liquid smoke and carrageenan as a natural antibacterial in manufacturing beef meatballs Google Scholar 👨‍🔬 W Widayat 📚 International Symposium on Food and Agro-biodiversity (ISFA). IOP Conferance …, 0
196	Application of Arthrospira platensis on ice cream and soft cheese with respect to their nutritional and sensory perspectives. J Teknol. 2016; 78: 4–2 Google Scholar 👨‍🔬 TW Agustini, W Ma’ruf, W Widayat, M Suzery
197	Revealing the environmental fate of ciprofloxacin in pharmaceutical effluent through UV/O3 degradation tracked by LC-MS/MS and assessed using a risk-based sustainability framework Google Scholar 👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat, A Darlan, Y Wahyono 📚 Kuwait Journal of Science, 100538, 2026	2026
198	Biodiesel production using simultaneous esterification-transesterification method from waste cooking oil with CaO/Fe2O3 bifunctional catalyst Google Scholar 👨‍🔬 L Buchori, W Widayat, DD Anggoro, S Sulardjaka, A Aqiila, NR Putri 📚 Edelweiss Applied Science and Technology 9 (1), 779-791, 2025	2025
199	Correction: Evaluating the Environmental Impacts at the End Point Level of the Biodiesel Production Process from Multiple Feedstocks in Indonesia Through Life Cycle Assessment … Google Scholar 👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, JS Adiansyah, ... 📚 Waste and Biomass Valorization 15 (1), 523, 2024	2024
200	Enhancing the Public Participation in a Sustainable Biomass Project Using TPB for the Power Generation Industry in Java Island Google Scholar 👨‍🔬 M Triani, A Nurfanani, IA Aditya, A Susanty, KI Cahyaningrum, W Widayat 📚 Procedia Computer Science 241, 258-265, 2024	2024
201	Preparation of Zirconia Catalyst from Zircon Sand and Catalytic Testing for Biodiesel Production Google Scholar 👨‍🔬 W Widayat, DAA Salwa, A Hasanah, K Nisa, JMP Saudale 📚 Reaktor 24 (2), 36-40, 2024	2024
202	Peningkatan Hasil Belajar Siswa Kelas XII SMA Pada Materi Geometri Analitik dengan Menggunakan Model Discovery Learning Google Scholar 👨‍🔬 AM VIVI, HR ABDUL, W WIDI 📚 Jurnal Pendidikan Matematika 1 (4), 2024	2024
203	Optimization of Mechanical Thermal Energy Audit At Pelabuhan Ratu Unit 2 With Pi Vision Google Scholar 👨‍🔬 AR Yohanes, Widayat, J Windarta 📚 E3S Web of Conferences 519, 02004, 2024	2024
204	Pelaksanaan Erection Jembatan Pipa Pada Proyek Pembangunan Spam Regional Kartamantul Tahap II Kapasitas 300 L/Detik Provinsi Daerah Istimewa Yogyakarta Google Scholar 👨‍🔬 S Noviyanto, A Sarminingsih, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 1 (7), 274-279, 2024	2024
205	Analisis Sistem Manajemen Mutu pada Proyek Pembangunan Rumah Tapak Jabatan Menteri di KIPP IKN Google Scholar 👨‍🔬 S Sumiati, S Syafrudin, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 2 (2), 111-120, 2024	2024
206	Adaptation To Changes In Coal Quality: Case Study At PT Paiton Energi (PE) Google Scholar 👨‍🔬 SJ Prakoso, W Widayat, SWA Suedy 📚 Eduvest-Journal of Universal Studies 4 (10), 8868-8878, 2024	2024
207	Effect of compaction pressure on shrinkage, density, and hardness of strontium hexaferrite Google Scholar 👨‍🔬 RD Widodo, FB Darsono, DF Fitriyana, Rusiyanto, W Widayat, ... 📚 Journal of Physics: Conference Series 2900 (1), 012049, 2024	2024
208	Sensing performance analysis of mobile robot navigation based on depth camera and LiDAR Google Scholar 👨‍🔬 H Afrisal, A Sofwan, W Widayat, RR Isnanto 📚 2023 International Conference on Computer Science, Information Technology …, 2023	2023
209	The effect of binder concentration on characteristic of pellet catalyst Google Scholar 👨‍🔬 N Iskandar, S Sulardjaka, S Syaiful, W Widayat 📚 AIP Conference Proceedings 2667 (1), 080007, 2023	2023
210	The effect of solid waste clay bath pre-treatment on characteristic of CaCO3 product Google Scholar 👨‍🔬 R Miravion, H Hadiyanto, L Buchori, W Widayat 📚 AIP Conference Proceedings 2667 (1), 040016, 2023	2023
211	Pengaruh Pengurangan Laju Alir Udara Proses pada Unit Secondary Reformer (103-D) terhadap Konsumsi Energi Pada Pabrik Amoniak Pupuk Kaltim 5 Google Scholar 👨‍🔬 FH Setyanto, PC Manapa, W Widayat 📚 Jurnal Energi Baru dan Terbarukan 3 (2), 154-172, 2022	2022
212	The Effect of NaHCO3 and Mg2+ Addition in Haematococcus pluvialis Cultivation by Carbon Injection Method Google Scholar 👨‍🔬 W Widayat, AM Maharani, SNK Aroli, MH Hawari 📚 Journal of Bioresources and Environmental Sciences 1 (3), 75-83, 2022	2022
213	Vinasse as Cultivation Medium of Chlorella sp. to Produce Poly–Hydroxy Butyrate in Various Limited Low–Cost Primary Nutrient Google Scholar 👨‍🔬 G Prima Indra Budianto, Y Mukti Wibowo, H Hadiyanto, W Widayat, ... 📚 E3S Web of Conferences 226, 00018, 2021	2021
214	Pelatihan Pembuatan Olahan Makanan Berbahan Baku Tepung Mocaf di Kec. Tembalang Google Scholar 👨‍🔬 W Widayat, YL Rahmania, DH Wardhani, H Susanto, N Rokhati, ... 📚 Indonesia Journal of Halal 4 (1), 10-15, 2021	2021
215	Effect of liquid smoke and carrageenan to beef meatball texture and lightness Google Scholar 👨‍🔬 W Widayat, N Afriani 📚 Indonesia Journal of Halal 4 (1), 32-39, 2021	2021
216	Antiplasmodial activity of Hyptis pectinata extract and its analogue against 3D7 Plasmodium falciparum through caseinolytic protease proteolytic (ClpP) inhibition:(TJPS-2021 … Google Scholar 👨‍🔬 M Suzery, B Cahyono, ND Amalina, C Budiman, I Bayu, M Asy'ari, ... 📚 Thai Journal of Pharmaceutical Sciences (TJPS) 45 (6), 2021	2021
217	Akuntansi Aktiva Tetap Guna Mendukung Kewajaran Laporan Keuangan (Studi Kasus pada PT. Perkebunan Nusantara X PG. Ngadiredjo Kediri) Google Scholar 👨‍🔬 SA Pamungkas 📚 Jurnal Ilmiah Cendekia Akuntansi 1 (2), 25-36, 2020	2020
218	Utilization of Tea Tree Branches as a Source of Thermal Energy Google Scholar 👨‍🔬 R Firyanto, H Susanto, RSL Ambarwati, S Suherman, W Widayat 📚 Key Engineering Materials 849, 8-13, 2020	2020
219	Sertifikasi Halal dan Pendampingan Plemtasi Sistem Jaminan Halal Pada UKM Yebishu Snack Google Scholar 👨‍🔬 M Suzery, B Cahyono, W Widayat, TW Agustini 📚 Seminar Nasional Pengabdian Kepada Masyarakat UNDIP 2020 1 (1), 2020	2020
220	Analisis kadar etanol dalam obat batuk dengan metode kromatografi cair Google Scholar 👨‍🔬 AN Annisa, H Nuryadi, W Widayat, DA Sofiati 📚 Indonesia Journal of Halal 2 (1), 23-25, 2019	2019
221	Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production Google Scholar 👨‍🔬 W Widayat, A Nuur Annisa, H Satriadi, S Syaiful 📚 MATEC Web of Conferences 156, 06013, 2018	2018
222	Pengembangan media pembelajaran kompetensi gambar potongan menggunakan video tutorial dan LKS Google Scholar 👨‍🔬 MB Pambudi, W Widayat 📚 Jurnal Pendidikan Teknik Mesin 17 (2), 2017	2017
223	Pengaruh laju alir nitrogen pada metode starvasi nitrogen terhadap peningkatan kandungan lipid mikroalga Chlorella sp. sebagai bahan baku biodiesel Google Scholar 👨‍🔬 FA Senjaya, D Sulistyanto, I Laira, MN Fatana, DB Pridiana, W Widayat 📚 Bioma: Jurnal Ilmiah Biologi 6 (2), 2017	2017
224	Effect of initial temperature and concentration of catalyst in polyeugenol production Google Scholar 👨‍🔬 Widayat, A Fatuchrohman, E Gustiasih 📚 AIP Conference Proceedings 1699 (1), 040007, 2015	2015
225	Peningkatan Daya Tutup Cat Tembok Emulsi yang Memenuhi Standar SNI Karena Keluhan Konsumen di PT. XXX Google Scholar 👨‍🔬 M Masyhad, W Widayat, I Riwayati 📚 Majalah Ilmiah Momentum 10 (2), 2014	2014
226	Proses Destilasi Vakum Pada Minyak Cengkeh Pada Tekanan Vakum: Simulasi Dan Eksperimen Google Scholar 👨‍🔬 W Widayat, MH Haidar, B Cahyono, N Ngadiwiyana, L Nurdiana, ... 📚 Prosiding Seminar Nasional Rekayasa Kimia dan Proses 2013, 1-6, 2014	2014
227	The Effect of Ultrasonic Irradiation on Preparation Zeolite Catalyst from Natural Mineral Google Scholar 👨‍🔬 W Widayat, H Susanto, H Satraidi 📚 Prosiding International Seminar on Chemical Engineering In conjunction with …, 2014	2014
228	Studi Awal Proses Pembuatan Glycerol Tribenzoat Dari Gliserol Dan Asam Benzoat Dengan Menggunakan Katalis Asam Klorida Google Scholar 👨‍🔬 A Abdurrakhman, Y Rifianto, W Widayat 📚 Jurnal Teknologi Kimia dan Industri 2 (2), 30-36, 2013	2013
229	Studi Pengaruh Metode Pembuatan dan Sumber Bahan Baku pada Proses Produksi Katalis dari Zeolit Alam Google Scholar 👨‍🔬 W Widayat, H Satriadi, A Roesyadi, HM Rachimoellah 📚 METANA 9 (01), 2013	2013
230	KARAKTERISTIK PEMBAKARAN BRIKET LIMBAH PENGOLAHAN KAYU SENGON (ALBAZIA FALCATARIA) Google Scholar 👨‍🔬 DD Saputro, W Widayat, H Saptoadi, F Fauzun 📚 Sainteknol: Jurnal Sains dan Teknologi 11 (2), 2013	2013
231	Peningkatan Kesejahteraan Pengrajin Minyak Cengkeh Dengan Meningkatkan Kualitas Produk Google Scholar 👨‍🔬 PA Handayani, WDP Rengga, W Widayat 📚 Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran 11 (1), 13-20, 2013	2013
232	Optimization Proses Produksi Biodiesel Berbantukan Gelombang Ultrasonik dengan Metode Central Composite Design Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, H Satriadi 📚 Prosiding Seminar Nasional Teknik Kimia Indonesia September 2012, 2012	2012
233	Pengaruh Temperatur Annealing Sambungan Las Smaw (Shielded Metal Arc Welding) Terhadap Sifat Mekanis Dan Fisis Baja K-945 EMS-45 Google Scholar 👨‍🔬 RY Prabowo, W Widayat 📚 JMEL: Journal of Mechanical Engineering Learning 1 (1), 2012	2012
234	Optimization of Initial pH and Total Sugar Concentration Variables on Citric Acid Production from Pineapple Waste with Aspergillus niger Yeast by Using Response Surface Methodology Google Scholar 👨‍🔬 W Widayat, A Abdullah, H Satriadi, M Hadi 📚 Jurnal Rekayasa Kimia & Lingkungan 8 (1), 2011	2011
235	PERPINDAHAN MASSA GAS â€“CAIR DALAM PROSES FERMENTASI ASAM SITRAT DENGAN BIOREAKTOR BERGELEMBUNG Google Scholar 👨‍🔬 W Widayat, A Abdullah, M Hadi 📚 Majalah Ilmiah Momentum 7 (2), 2011	2011
236	Peningkatan Sifat Mekanis Sekrap Aluminium dengan Degassing Google Scholar 👨‍🔬 A Budiyono, W Widayat 📚 Profesional 8 (1), 2010	2010
237	Development of Heterogeneous Alkali Methoxide Catalyst from Fly Ash and Limestone Google Scholar 👨‍🔬 W Widayat, M Christwardana, S Syaiful, H Satriadi, A Khaibar, MM Almaki 📚 Видавництво Львівської політехніки, 2010	2010
238	OPTIMASI PEMBUATAN DIETIL ETER DENGAN PROSES REAKTIF DISTILASI Google Scholar 👨‍🔬 W Widayat, H Satriadi 📚 Reaktor 12 (1), 7-11, 0
239	Silica-rich Sodalite Synthesis: The Effect of Variations in Ultrasound Treatment and Hydrothermal Temperature Google Scholar 👨‍🔬 S Sriatun, MCA Putri, HZ Urbach, A Darmawan, W Widayat, H Susanto 📚 Jurnal Kimia Sains dan Aplikasi 25 (4), 137-145, 0
240	Annisa AN 2017 Google Scholar 👨‍🔬 W Widayat 📚 Synthesis and Characterization of ZSM-5 Catalyst at Different Temperatures …, 0
241	Hydrothermal Synthesis and Characterization of Nitrogen-Doped Graphene from Puspa Wood Biomass Google Scholar 👨‍🔬 MG Arrasyid, W Widayat, L Buchori 📚 Indonesian Journal of Chemistry, 2026	2026
242	Respons Morphotype Phaeodactylum tricornutum terhadap Cryopreservation Google Scholar 👨‍🔬 PP Renta, W Widayat 📚 Journal of Marine Research 15 (1), 211-218, 2026	2026
243	Composite Curve Pada Teknologi Pinch Google Scholar 👨‍🔬 W Widayat, OKM Fauzan, ANHM Manulang, E Salsabila, I Ratnawati, ... 📚 Jurnal Profesi Insinyur Indonesia 3 (3), 2026	2026
244	ANALISIS PENGARUH PERBANDINGAN ΔT TERHADAP OPTIMASI ENERGY DENGAN METODE PROBLEM TABLE Google Scholar 👨‍🔬 W Widayat, AN Ihsan, MS Hazim, NL ES 📚 Jurnal Profesi Insinyur Indonesia 3 (4), 2026	2026
245	Strategi Penguatan Pasokan Bahan Baku Biomassa Berkelanjutan Melalui Budidaya Tanaman Energi: Analisis Biofisik dan Kelayakan Finansial Google Scholar 👨‍🔬 I Irayani, W Widayat, E Kusdiantini, JW Hidayat 📚 ULIN: Jurnal Hutan Tropis 10 (1), 313-327, 2026	2026
246	Evaluasi Kuat Tekan Beton Eksisting Menggunakan Hammer Test Google Scholar 👨‍🔬 MY Hasanudin, W Widayat, S Silviana 📚 Jurnal Profesi Insinyur Indonesia 3 (4), 283-287, 2026	2026
247	Environmental Impact Assessment of Biomass Co-Firing and Particulate Filtration Stability in a Remote-Area Stoker Coal Power Plant Google Scholar 👨‍🔬 A Tonapa, W Widayat, S Silviana 📚 Journal of Bioresources and Environmental Sciences 5 (1), 51-58, 2026	2026
248	Mapping Research on Digital Transformation and University Image: A Scopus-Based Bibliometric Analysis Google Scholar 👨‍🔬 R Baroroh, YM Cholily, DP Utomo, W Widayat, E Mayasari, M Azizah 📚 AL-ISHLAH: Jurnal Pendidikan 18 (1), 902-911, 2026	2026
249	Castor-Based Ester Oil Production Using SnCl2/HZSM-5 Catalyst for Sustainable Transformer Google Scholar 👨‍🔬 W Widayat, J Philia, KGH Mangunkusumo, AS Alam 📚 Emerging Science Journal 10 (2), 714-728, 2026	2026
250	Integration of Energy Quality and Financial Feasibility in the Production of Oil Palm Frond Chips and Pellets Google Scholar 👨‍🔬 Y Alamsah, W Widayat, SWA Suedy 📚 Jurnal IPTEK Bagi Masyarakat 5 (3), 688-698, 2026	2026
251	Chemically activated biochar derived from mangrove litter with enhanced CO2 adsorption capacity for carbon sequestration Google Scholar 👨‍🔬 D Ariyanti, V Syifa, FD Hapsari, IN Widiasa, W Widayat, S Silviana, ... 📚 International Journal of Renewable Energy Development 15 (3), 474-485, 2026	2026
252	Methyl ester production from high free fatty acid content with Ce/Zeolite bifunctional catalyst Google Scholar 👨‍🔬 ASN Syahidah, DP Wilujeng, W Widayat, H Hadiyanto, S Sulardjaka, ... 📚 International Journal of Renewable Energy Development 15 (3), 570-583, 2026	2026
253	Implementasi Program Keselamatan dan kesehatan Kerja di UPTK3L Universitas Diponegoro Google Scholar 👨‍🔬 YA Pradana, S Sulardjaka, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 4 (1), 2026	2026
254	Calcium reduction of stingray (Himantura gerrardi) bones with EDTA disodium salt assisted ultrasound Google Scholar 👨‍🔬 P Priyosetyoko, S Meiny, W Widayat 📚 E3S Web of Conferences 605, 03061, 2025	2025
255	PENERAPAN KIT PEMBELAJARAN PENGECORAN BENDA BERONGGA DI SMK Google Scholar 👨‍🔬 W WIDI, M AHMAD, GG YAZID'AZZA, WW FAJAR, T BAYU 📚 JURNAL PENGABDIAN KEPADA MASYARAKAT Учредители: Politeknik Dharma Patria …, 2025	2025
256	Catalytic conversion of palm acid oil and bulk cooking oil to biodiesel using Fe/aluminosilicate Google Scholar 👨‍🔬 W Widayat, RA Sumarno, YY Ananda, S Sulardjaka, J Philia 📚 International Journal of Innovative Research and Scientific Studies 8 (3), 12-29, 2025	2025
257	Castor Oil Derived Insulating Fluid Catalyzed with SnCl2/Zeolite Y Google Scholar 👨‍🔬 W Widayat, J Philia, I Istiqomah, S Sriyono, KGH Mangunkusumo, ... 📚 E3S Web of Conferences 650, 01001, 2025	2025
258	Production of Liquid Fuel as an Alternative Energy Source from Reclaimed Asphalt Pavement (RAP) via Activated Natural Zeolite Catalyzed-Pyrolysis Process Google Scholar 👨‍🔬 W Widayat, NPSM Dewi, RM Rahman, S Sulardjaka, S Sumardi, ... 📚 E3S Web of Conferences 655, 04002, 2025	2025
259	Study on Integration of Solar Power Generation in Hydroxyoxigen (HHO) Gas Production Google Scholar 👨‍🔬 M Habibi, W Widayat, S Sulistyo, J Windarta 📚 E3S Web of Conferences 674, 04001, 2025	2025
260	Pelaksanaan Pekerjaan Sipil Pada Konstruksi Headrace Tunnel PLTA Jatigede 2x55 MW Chainage PT0+ 907,609–PT0+ 967,609 Google Scholar 👨‍🔬 AB Kermite, A Suprihanto, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 3 (1), 1-9, 2025	2025
261	Sistem Pembumian Pada Pembangkit Listrik Tenaga Surya (PLTS) Google Scholar 👨‍🔬 BP Pandapotan, AC Kumoro, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 3 (1), 34-38, 2025	2025
262	ANALISIS EKONOMI DAN PENURUNAN EMISI KARBON PADA WEST KALIMANTAN POWER GRID STRENGTHENINGPROJECT Google Scholar 👨‍🔬 KW Yuliani, W Widayat, H Razak 📚 Jurnal Profesi Insinyur Indonesia 3 (2), 2025	2025
263	Pengendalian Material Semen Untuk Mengendalikan Mutu Beton Site Mix Proyek Peningkatan Jaringan Irigasi Sub DI Wadaslintang Barat Google Scholar 👨‍🔬 N Andrianto 📚 Jurnal Profesi Insinyur Indonesia 3 (2), 2025	2025
264	WITHDRAWN: Study on integration of solar power generation in oxyhydrogen (HHO) gas production using compact water electrolyzer Google Scholar 👨‍🔬 M Habibi, W Widayat, S Sulistyo, J Windarta 📚 F1000Research 14 (761), 761, 2025	2025
265	Balancing Relief Gas and Assist Gas Flows for Efficient Flare Gas Combustion in Onshore Gas Facility. Google Scholar 👨‍🔬 M Christwardana, H Sugiarto, W Widayat 📚 ASEAN Journal of Chemical Engineering 25 (3), 2025	2025
266	Optimization of biodiesel production from candlenut oil via simultaneous reaction using a bifunctional CeO2. CaO catalyst Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, H Hargono, A Abdullah, MN Syalom, ... 📚 International Journal of Renewable Energy Development 14 (6), 1273-1284, 2025	2025
267	Photo-oxidative degradation of disposable mask and the effect on the biodegradation process in soil system Google Scholar 👨‍🔬 A Khoironi, H Hadiyanto, I Dianratri, FA Joelyna, RA Baihaqi, WZ Pratiwi, ...	2025
268	PELATIHAN PEMBUATAN SILASE PAKAN TERNAK BAGI KELOMPOK TANI SEDYO MULYO, DESA DUKUH, KECAMATAN BAYAT, KLATEN Google Scholar 👨‍🔬 HN FIRMANSYAH, W WIDAYAT, MHG SYAFEI 📚 PESARE: JURNAL PENGABDIAN SAINS DAN REKAYASA Учредители: LPPM Universitas …, 2024	2024
269	Teachers’ Perspectives on the Significance of Patentability for Innovative and Commercially Technological Works: A Study at SMKN 4 Semarang Google Scholar 👨‍🔬 S Sunyoto, W Widayat, MBR Wijaya, D Wicaksono 📚 5th Vocational Education International Conference (VEIC-5 2023), 266-279, 2024	2024
270	Cultivation of Spirulina sp with various nutrients through the carbon trapping method Google Scholar 👨‍🔬 Widayat, Hadiyanto, Wahyudi, J Philia, H Rahayu, YL Rahmania 📚 AIP Conference Proceedings 2838 (1), 020021, 2024	2024
271	Experimental Investigation of by-Product Hydrogen Gas in the Harvesting Process of Dunaliella salina using a Non-Sacrificial Cathode Google Scholar 👨‍🔬 P Purwono, H Hadiyanto, M Christwardana, W Widayat, MA Budihardjo 📚 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan 21 …, 2024	2024
272	Extraction of oxalic acid from porang tuber by mechanical separation method Google Scholar 👨‍🔬 H Satriadi, W Widayat, AG Sianturi, MI Alfareza 📚 Journal of Bioresources and Environmental Sciences 3 (1), 45-52, 2024	2024
273	Development Village Tour Based on Technopreneurship in Kendal Regency Google Scholar 👨‍🔬 DD Saputro, M Rahayuningsih, M Margunani, B Bunyamin, W Widayat, ... 📚 Jurnal Abdimas 28 (1), 101-108, 2024	2024
274	Strategi Peningkatan Kesadaran Keselamatan dan Keamanan Pelayaran Serta Pengenalan Sumber Daya Energi Terbarukan Pada Masyarakat Nelayan Sebagai Wujud Penerapan Profesionalisme … Google Scholar 👨‍🔬 T Purnomo, A Seno, H Hadiyanto, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 1 (7), 242-249, 2024	2024
275	Perancangan Water Cooled Scroll Chiller R290 dengan Kapasitas 20 TR menggunakan Software CoolPack Google Scholar 👨‍🔬 BFT Kiono, SB Prakoso, W Widayat, M Djaeni 📚 Jurnal Profesi Insinyur Indonesia 2 (2), 79-83, 2024	2024
276	Analisis Keterlambatan Proyek pada Pembangunan Pondasi Reduction Kiln Line 3 Sebuku Kalimantan Selatan Google Scholar 👨‍🔬 MI Setiadi, W Widayat, YA Priastiwi 📚 Jurnal Profesi Insinyur Indonesia 2 (2), 84-90, 2024	2024
277	Evaluasi Waktu Pekerjaan Bored Pile dengan Lean Construction Metode Last Planner System pada Proyek RSWS Makassar Google Scholar 👨‍🔬 N Sekarningtyas, YA Priastiwi, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 2 (3), 136-140, 2024	2024
278	Studi Pengaruh Biomassa Bahan Bakar Jumputan Padat (BBJP) pada Proses Co-firing di PLTU Google Scholar 👨‍🔬 MZADE ARTA, W WIDAYAT, M MUCHAMMAD 📚 ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik …, 2024	2024
279	Potensi Pengembangan Pembangkit Listrik Tenaga Biomassa (PLTBm) di Kawasan Transmigrasi Ponu dalam Rangka Mendukung Pengembangan Kawasan Strategis Nasional (PKSN) Perbatasan Google Scholar 👨‍🔬 E Melati, S Silviana, W Widayat 📚 Jurnal Profesi Insinyur Indonesia 2 (6), 396-401, 2024	2024
280	Design of the Electronic Report Sheet Model for Field Work Practices to Improve the Competence of Superior and Competitive Vocational Education Graduates Google Scholar 👨‍🔬 MBR Wijaya, S Sunyoto, W Widayat, T Santosa, YS Wicaksana, ... 📚 Proceedings of Vocational Engineering International Conference 5, 356-365, 2023	2023
281	Modification of SiO2/Fe2O3 catalyst from rice husk ash and iron sand for biodiesel production: A review Google Scholar 👨‍🔬 W Widayat, L Subianto, SN Alfina, S Wahyuni, FA Nurushofa 📚 AIP Conference Proceedings 2667 (1), 080002, 2023	2023
282	Pemanfaatan Limbah Claybath Pabrik Kelapa Sawit sebagai Katalis dalam Produksi Biodiesel Google Scholar 👨‍🔬 R Miravion, W Widayat 📚 Jurnal Ilmu Lingkungan 21 (2), 449-452, 2023	2023
283	Effect of calcination on mechanical strength characteristics of pellet catalysts from Bandung natural zeolite materials Google Scholar 👨‍🔬 N Iskandar, GF Romadlon, Sulardjaka, Syaiful, Widayat 📚 3rd Borobudur International Symposium on Science and Technology 2021 2706 (1 …, 2023	2023
284	Characteristics of mechanical strength on pellet catalysts from Bandung natural zeolite material due to the influence of variations in mesh size Google Scholar 👨‍🔬 N Iskandar, S Al-Kareem, Sulardjaka, Syaiful, Widayat 📚 3rd Borobudur International Symposium on Science and Technology 2021 2706 (1 …, 2023	2023
285	Effect of nutrition and initial pH on the growth of Spirulina sp with direct injection method Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, W Wahyudi, J Philia, H Rahayu, YL Rahmania 📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023	2023
286	The estimation of the waste heat recovery in prime cookstove by using thermoelectric generators Google Scholar 👨‍🔬 W Widayat, AM Zuhud, F Mochammad 📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023	2023
287	Analisis Struktur Bangunan Apartemen 10 lantai Menggunakan Software SANSPRO V. 5.20 Google Scholar 👨‍🔬 MC Simanjuntak, W Widayat, A Syakur 📚 Jurnal Profesi Insinyur Indonesia 1 (5), 167-178, 2023	2023
288	Optimization heat integration of preliminary plant design of styrene monomer into polystyrene Google Scholar 👨‍🔬 RA Febriansyar, NU Azizah, Widayat 📚 AIP Conference Proceedings 2453 (1), 020078, 2022	2022
289	PEMASANGAN PIPA HDPE PADA PENYAMBUNGAN PIPA IRIGASI DENGAN METODE BUTT FUSION Google Scholar 👨‍🔬 D Syafrizal, W Widayat, S Darsono 📚 Jurnal Profesi Insinyur Indonesia 1 (1), 18-23, 2022	2022
290	Encapsulation of hyptolide coated alginate, chitosan, and alginate-chitosan Google Scholar 👨‍🔬 M Suzery, B Cahyono, Widayat, L Apriliana 📚 AIP Conference Proceedings 2553 (1), 020004, 2022	2022
291	Penerapan mesin pengering pada industri kecil tepung mocaf Google Scholar 👨‍🔬 W Widayat, W Wahyudi, K Karnowo, O Paramita, MH Shidiq, W Adi, ... 📚 Prosiding Seminar Nasional Hasil Pengabdian Kepada Masyarakat Universitas …, 2022	2022
292	Pengaruh Variasi Kecepatan Sirkulasi Udara Terhadap Laju Pengeringan Kayu Pada Dapur Pengering Kayu Google Scholar 👨‍🔬 K Karnowo, DH Al Janan, W Widayat 📚 Jurnal Inovasi Mesin 3 (2), 29-34, 2021	2021
293	Efisiensi Energi dan Reduksi Harga Total Produksi Hidrogen pada Siklus Sulfur-Iodine Seksi III Skala Pilot Menggunakan Analisis Pinch Google Scholar 👨‍🔬 SH Raharjo, I Winaningsih, W Widayat 📚 TEKNIK 41 (1), 48-54, 2020	2020
294	Single-step purification of peroxidase enzyme from Horseradish (Raphanus sativus L.) Google Scholar 👨‍🔬 FP Lestari, AN Al-Baarri, Widayat, AM Legowo 📚 AIP Conference Proceedings 2197 (1), 080002, 2020	2020
295	Efek Aerasi terhadap Perubahan Residu H2O2 Air Fermentasi Mocaf (Modified Cassava Flour) Google Scholar 👨‍🔬 N Yaqin, AN Al-Baarri, MA Budihardjo, W Widayat 📚 Jurnal Aplikasi Teknologi Pangan 9 (1), 38-43, 2020	2020
296	Pelatihan Pembuatan Pola dan Cetakan Pasir untuk Guru SMK Google Scholar 👨‍🔬 W Widayat, S Maulana, A Septiyanto, RF Naryanto 📚 Seminar Nasional Pengabdian Kepada Masyarakat UNDIP 2020 1 (1), 2020	2020
297	Legal Liability of Automatic Instrument Results in Environmental Laboratory Analysis Google Scholar 👨‍🔬 Y Luluk Rahmania, W Widayat, P Person Renta 📚 E3S Web of Conferences 202, 05011, 2020	2020
298	ANALISIS PEMANFAATAN PANAS SISA DARI KOMPOR BIOMASSA UNTUK PEMBANGKITAN LISTRIK BERBASIS TERMOELEKTRIK Google Scholar 👨‍🔬 MZ ANDRYA, W Widayat, M Facta 📚 School of Postgraduate, 2019	2019
299	ANALISIS KEBUTUHAN ENERGI PADA PROSES PRODUKSI BAHAN BAKAR DARI LIMBAH POLYETHYLENE DAN BIAYA PROSES PRODUKSINYA Google Scholar 👨‍🔬 EH ISTOTO, W Widayat, J Windarta 📚 School of Postgraduate, 2019	2019
300	KAJIAN TEKNOEKONOMI PRODUKSI BIODIESEL DENGAN BAHAN BAKU PALM SLUDGE OIL (PSO) DAN MINYAK GORENG BEKAS (JELANTAH) SKALA INDUSTRI KECIL Google Scholar 👨‍🔬 A WICAKSONO, W Widayat, S Saptadi 📚 School of Postgraduate, 2019	2019
301	BIODIESEL: Proses, Karakteristik, dan Implementasi Google Scholar 👨‍🔬 W Widayat, K Sunandar, IS Purwaningsih 📚 Graha Ilmu, 2019	2019
302	Synthesis of Methyl Tertiary Glycerol Ether (MTGE) from glycerol and Tertiary Butyl Alcohol (TBA) Google Scholar 👨‍🔬 W Widayat, I Sulistyaningtiyas, D Agnestya, DA Sofiati 📚 IOP Conference Series: Earth and Environmental Science 248 (1), 012021, 2019	2019
303	MENINGKATKAN MOTIVASI DAN HASIL BELAJAR KIMIA PADA POKOK BAHASAN LARUTAN ASAM DAN BASA MENGGUNAKAN MULTI METODE PADA SISWA KELAS XI IPA 1 SMA NEGERI 1 KEDIRI SEMESTER GENAP … Google Scholar 👨‍🔬 W Widayat 📚 LENTERA: Jurnal Pendidikan dan Pengajaran 9 (4), 9-19, 2019	2019
304	Kasmui, and S Google Scholar 👨‍🔬 W Widayat 📚 Sukaesih, 2018	2018
305	Extraction of oil and antioxidant from rice bran (Oryza sativa) using co-solvent and ultrasound irradiation Google Scholar 👨‍🔬 DP Utomo, BA Susanto, H Hadiyanto 📚 Ponte 73 (9), 382-391, 2017	2017
306	EXTRACTION OF OIL AND ANTIOXIDANT FROM RICE BRAN (ORYZA SATIVA) USING COSOLVENT AND ULTRASOUND IRRADIATION Google Scholar 👨‍🔬 H Hadiyanto, DPU Widayat, BA Susanto 📚 PONTE International Journal of Science and Research 73 (9), 2017	2017
307	MIMIO TEACHUNTUK PEMBELAJARAN TEORI DAN PRAKTIK DI JURUSAN TEKNIK MESIN UNNES Google Scholar 👨‍🔬 W Wahyudi, W Widayat, D Widjanarko 📚 Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran 14 (1), 67-74, 2016	2016
308	Analisis Kelayakan USAhatani Nanas (Ananas Comosus Merr) di Desa Siwarak, Kecamatan Karangreja, Kabupaten Purbalingga (Studi Kasus pada Kelompok Tani Barokah) Google Scholar 👨‍🔬 W Widayat, P Pujiharto, RH Putri 📚 Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto, 2016	2016
309	Back Matter Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 18 (2), 2016	2016
310	UJI KARAKTERISTIK PADA PREPARASI KATALIS Zn/ZEOLIT Google Scholar 👨‍🔬 SA Saputro, EM br Ginting, W Widayat 📚 Prosiding Sains Nasional dan Teknologi 1 (1), 2015	2015
311	Pengembangan Sistem Penelusuran Alumni (Tracer Study) Berbasis Teknologi Informasi Dan Komunikasi Google Scholar 👨‍🔬 AB Wahyudi, W Widayat 📚 proceedingfptk 440, 2015	2015
312	OPTIMASI TRANSESTERIFIKASI BIODIESEL MENGGUNAKAN CAMPURAN MINYAK KELAPA SAWIT DAN MINYAK JARAK DENGAN TEKNIK ULTRASONIK PADA FREKUENSI 28 kHZ Google Scholar 👨‍🔬 B Fajar TK, B Wahyudi H, W Widayat	2015
313	Optimization process of tribenzoine production as a glycerol derived product Google Scholar 👨‍🔬 Widayat, Abdurrakhman, Y Rifianto, Abdullah, Hadiyanto, AM Samsudin, ... 📚 AIP Conference Proceedings 1699 (1), 060023, 2015	2015
314	PROSES EKSTRAKSI MINYAK DARI LIMBAH PADAT BIJI KARET BERBANTU GELOMBANG MIKRO Google Scholar 👨‍🔬 A Wildan, I Hartati, W Widayat 📚 Majalah Ilmiah Momentum 10 (1), 2014	2014
315	Improvement of clove oil quality by using adsorption-distillation process Google Scholar 👨‍🔬 W Widayat, B Cahyono, H Hadiyanto, N Ngadiwiyana 📚 Peer Review dll, 2014	2014
316	Triacetate production process from glycerol using sulfuric acid as catalyst Google Scholar 👨‍🔬 W Widayat, H Satriadi, A Abdullah, IWK Handono 📚 Jurnal Teknik Kimia Indonesia 11 (4), 192-198, 2013	2013
317	DIVERSIFIKASI MINYAK CENGKEH MENJADI FINE CHEMICAL Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana 📚 Prosiding Seminar Nasional Rekayasa Kimia dan Proses 2013, 2013	2013
318	Biodiesel Production From Rubber Seeds (Hevea brasiliensis) with In Situ and Acid Catalyst Method by Using Ultrasonic Assisted Google Scholar 👨‍🔬 W Widayat, MS Samseno, LA Wiguna, ADK Wibowo 📚 Proceeding International Seminar on Biorenewable Resources Utilization for …, 2013	2013
319	Ultrasound Assisted Biodiesel Production from Rubberseed Oil Google Scholar 👨‍🔬 H Hady, W Widayat, F Berkah	2012
320	The Effect of Plasticizer on Mechanical Properties and Chemical Structure of Chitosan-Starch Film Composites Google Scholar 👨‍🔬 N Suseno, E Savitri 📚 Department of Chemical Engineering Institut Teknologi Sepuluh Nopember (ITS …, 2012	2012
321	Studi Pengaruh Ukuran Dan Konsentrasi Tepung Jagung Pada Proses Produksi Etanol Grade Bahan Bakar Dengan Proses Adsorpsi Google Scholar 👨‍🔬 W Widayat, M Muhaimin, R Saputra, I Perdana 📚 Prosiding Seminar Nasional Teknik Kimia April 2012 ISSN, 2012	2012
322	Optimization Process Of Biodiesel Production With Ultrasound Assisted By Using Central Composite Design Methods Google Scholar 👨‍🔬 W Widayat, O Yuariski, D Murwono, H Satriadi 📚 Proceeding 19th Regional Symposium on Chemical Engineering (RSCE 2012), 1-6, 2012	2012
323	PERANCANGAN DAN PEMBUATAN PROGRAM PENGAMBIL DAN PENYIMPAN DATA DARI PLC PADA SISTEM ROBOT RECORD AND REPLAY Google Scholar 👨‍🔬 CW Sportyawan, W Aryadi, W Widayat 📚 JMEL: Journal of Mechanical Engineering Learning 1 (1), 2012	2012
324	PEMAHAMAN SISTEM BAHAN BAKAR KONVENSIONAL MENGGUNAKAN MEDIA ANIMASI DI SMK YOSEF CEPU Google Scholar 👨‍🔬 HR Ramadhian, W Widayat 📚 Automotive Science and Education Journal 1 (1), 2012	2012
325	Simulasi Kinetika Reaksi Transesterifikasi Minyak Goreng Bekas Berbantukan Radiasi Ultrasonik Google Scholar 👨‍🔬 H Nuâ, SB Sasongko 📚 Prosiding Sains Nasional dan Teknologi 1 (1), 2012	2012
326	Study on Production Process of Biodiesel from Rubber Seed (Hevea Brasiliensis) by In Situ (Trans) esterification Method. Google Scholar 👨‍🔬 K Wibowo, A Duma 📚 International Review of Mechanical Engineering 6 (7), 1601, 2012	2012
327	The Effect of Temperature and Ethanol Concentration on Diethyl Ether Production by Using Adsorption--Dehydration Process. Google Scholar 👨‍🔬 A Roesyadi, M Rachimoellah 📚 International Review of Chemical Engineering-Rapid Communications 3 (1), 87, 2011	2011
328	Proses Ekstraksi Minyak Dari Mikroalga Jenis Chlorella sp Berbantukan Ultrasonik Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, H Satriadi, A Wati, SA Motto 📚 Prosiding Seminar Nasional Fundamental dan Aplikasi Teknik Kimia 2011, 2011	2011
329	PRODUCTION OF BIODIESEL BY ULTRASOUND ASSISTED ESTERIFICATION OF RUBBERSEED OIL Google Scholar 👨‍🔬 TB Fajar, H Hadiyanto, W Widayat 📚 Faculty of Engineering, 2010	2010
330	Widayat Google Scholar 👨‍🔬 D Suherman 📚 Proceeding of International Drying Symposium, Magdeburg, Germany 3 (6), 1605-11, 2010	2010
331	RANCANG BANGUN ALAT PEMISAHAN BUM EMAS SECARA GRAVITASI PADA PERTAMBANGAN RAKYAT DI WONOGIRI JAWA TENGAH Google Scholar 👨‍🔬 W Widayat, U Budiarto, A Mow 📚 FAKULTAS TEKNIK, 2009	2009
332	RANCANG BANGUN PENGERING SEBAGAI UPAYA MEMPERBAIKI KUALITAS TEH BUNGA ROSELA PADA ASPETRI (Asosiasi Pengobat Tradisional Ramuan Indonesia) CABANG SEMARANG Google Scholar 👨‍🔬 U Budiarto, AWB Santosa, W Widayat, M Djaeni 📚 FAKULTAS TEKNIK, 2009	2009
333	Peningkatan Produktifitas Etanol oleh Sacharomyces cereviseae dengan Operasi Tekanan Vakum Google Scholar 👨‍🔬 A Abdullah, W Widayat 📚 Fakultas Teknik UNDIP, 2009	2009
334	RANCANG BANGUN ALAT PENGGILING PADA PRODUKSI KERUPUK LEGENDARIKARAK SEBAGAI USAHA UNTUK MENINGKATKAN KAPASITAS DAN KUALITAS PRODUK Google Scholar 👨‍🔬 L Buchori, W Widayat, M Djaeni 📚 FAKULTAS TEKNIK, 2009	2009
335	RANCANG BANGUN ALAT PENGRAJANG KARAK DAN PERBAIKAN PROSES UNTUK MENINGKATKAN KUALITAS PRODUK Google Scholar 👨‍🔬 W Widayat, M Djaeni, L Buchori 📚 Majalah INFO 11 (1), 19-26, 2009	2009
336	Proses Produksi DiEtil Eter dengan Dehidrasi Etanol pada Fase Cair Google Scholar 👨‍🔬 N Dwi Savitri, V Veronica	2009
337	PENGARUH KONSENTRASI KAPANG DAN LAJU ALIR VOLUMETRIK UDARA TERHADAP PROSES FERMENTASI ASAM SITRAT DARI LIMBAH PADAT BUAH NANAS Google Scholar 👨‍🔬 D Soetrisnanto, M Hadi 📚 Majalah Ilmiah Momentum 3 (2), 2007	2007
338	PEMBUATAN DIETHIL ETER DARI ETANOL TEKNIS DENCAN PROSES REAKTIF DISTILASI Google Scholar 👨‍🔬 W Widayat, H Satrindi 📚 FAKULTAS TEKNIK, 2005	2005
339	PENINGIKATAN KUALITAS MINYAK GORENG BEKAS MELALUI PROSES ADSORBSI DENGAN ADSORBENT ZEOLIT Google Scholar 👨‍🔬 K Haryani, W Widayat 📚 FAKULTAS TEKNIK, 2005	2005
340	JUDUL KEGIATANPENINGKATAN EFISIENSI PENGUSAHA KRUPUK GORENGMELALUI REUSE MINYAK GORENG BEKASMENGGUNAKAN ZEOLIT AKTIFUpaya Peningkatan Pendapatan IJKM Di Kabupaten Boyolali Google Scholar 👨‍🔬 W Widayat	2005
341	Pembuatan Asam Sitrat dari Buangan Padat Buah Nanas dengan Fermentasi Fase Cair dalam Bioreaktor Bergelembung Google Scholar 👨‍🔬 W Widayat, A Abdullah, D Soetrisnanto, M Hadi 📚 FAKULTAS TEKNIK, 2005	2005
342	PEMBUATAN ASAM SITRAT DARI TETES TEBU DENGAN PROSES FERMENTASI FASE CAIR Google Scholar 👨‍🔬 K Haryani, W Widayat 📚 FAKULTAS TEKNIK, 2004	2004
343	SINTESA BARAN BAKAR MDROKARBON DAM MINYAK GORENG BEKAS MELAUI PROSES SAPONIFIKASI DILANJUTKAN THERMAL-CRACKING Google Scholar 👨‍🔬 M Djaeni, S Suherman, W Widayat 📚 FAKULTAS TEKNIK, 2004	2004
344	HIDRODINAMIKA REAKTOR AIR-LIFT RECTANGULAR UNTUK FLUIDA NON-NEWTONIAN Google Scholar 👨‍🔬 W Widayat, S Suherman 📚 FAKULTAS TEKNIK, 2003	2003
345	PENGOLAHAN AIR KANDUNGAN ORGANIK TERLARUT TINGGI DENGAN KOMBINAS1 TEKNOLOGI MEMBRAN DAN FLOKULASI: Studi Kasus di Kabupaten Kendal Google Scholar 👨‍🔬 G SEMARAN	2002
346	PENGARUH VISKOSITAS DAN LAJU ALIR TERHADAP HIDRODINAMIKA DAN PERPINDAHAN MASSA DALAM PROSES PRODUKSI ASAM SITRAT DENGAN BIOREAKTOR AIR-LIFT DAN KAPANG Aspergilus Niger Google Scholar 👨‍🔬 PPASD BIOREAKTOR
347	OPTIMASI PEMBUATAN DIETIL ETER DENGAN PROSES Google Scholar 👨‍🔬 R DISTILASI
348	List of Contents Google Scholar 👨‍🔬 E IJRED 📚 International Journal of Renewable Energy Development 4 (2), 135496, 0
349	KINETIKA REAKSI PADA PROSES PRODUKSI DIETIL ETER DARI ETANOL DENGAN KATALIS H-ZEOLIT Google Scholar 👨‍🔬 W Widayat, A Roesyadi, M Rachimoellah 📚 Reaktor 14 (2), 101-108, 0
350	Pengaruh Jenis Katalis Pada Proses Produksi DiEtil Eter dengan Reaktor Fixed Bed Google Scholar 👨‍🔬 AR Widayat, M Rachimoellah
351	K, Haryani. 2006 Google Scholar 👨‍🔬 S Widayat 📚 Optimasi Proses Adsorbsi Minyak Goreng Bekas dengan Adsorbent Zeolit Alam …, 0
352	Pranoto, 2003,“ Google Scholar 👨‍🔬 S Widayat 📚 Koefisien Perpindahan Massa Gas-Cair pada Fluida Non Newtonian dalam Reaktor …, 0
353	Rancang bangun alat pemurni minyak jelantah dengan proses adsorbsi Google Scholar 👨‍🔬 S Silviana, W Widayat, FS Budi
354	Upaya Pelestarian Salak Gula Pasir melalui Pelatihan dan Pembinaan Petani dengan Teknik Pencangkokan di Desa Sibetan Google Scholar 👨‍🔬 NNSNW Suparmi, NMA Trisnawati 📚 Bestari, 243014, 0
355	Upaya Pelestarian Situs Glingseran sebagai Sumber Sejarah dengan Meningkatkan Partisipasi Masyarakat Sekitar Situs Berdasarkan Undang-undang Nomor 5 Tahun 1992 Google Scholar 👨‍🔬 E Wardaniyah, WT Julianto, F Syahyudin, FG Setiaputra, AB Putrantyo 📚 Bestari, 241517, 0
356	Modifikasi Alat Pengemasan Hasil Pemindangan Bagi Kelompok Ikan Pindang Mina Lasmi di Desa Perancak Kabupaten Jembrana-Bali Google Scholar 👨‍🔬 MMPSI Gusti, M Separiyana 📚 Bestari, 245990, 0
357	H., Yuariski O. & Murwono, D Google Scholar 👨‍🔬 S Widayat 📚 Biodiesel Production from Bulk Frying Oil with Ultrasound Assisted, 1732-1739, 0
358	Proses Produksi Biofuel dari Minyak Goreng Kelapa Sawit dengan Proses Catalytic Cracking dengan Katalis Zeolit Google Scholar 👨‍🔬 W Widayat, L Pamuji 📚 Prosiding Seminar Nasional Teknik Kimia April 2012, 0
359	Kinetic Study of Kapok Seed Oil Esterification using BMIM-PF6 Catalyst Google Scholar 👨‍🔬 BA Sudrajat, W Widayat, N Widiantara, H Satriadi, M Siahaan, W Pinem 📚 Reaktor 20 (3), 138-149, 0
360	FRACTIONAL DISTILLATION OF CLOVE OIL AT VACUUM PRESSURE Google Scholar 👨‍🔬 MHH Widayat, L Nurdiana, N Hadiyanto, B Cahyono, H Satriadi 📚 Improving The Quality of Education to Face The Impact of Technology, 0
361	Kinetic Study for Biodiesel Production from Rubberseeds (Hevea brasiliensis) by In situ Esterification method Google Scholar 👨‍🔬 W Widayat, KW Agam Duma, H Hadiyanto
362	Optimization Process of Biodiesel Production From Nyamplung Seed (Calophyllum inophyllum L) Using In Situ Process and Ultrasonic Assisted Google Scholar 👨‍🔬 W Widayat, A Abdullah, KO Paradita, EM Tunga Dewi 📚 Proceeding of ICCME 2012, 1-9, 0
363	Bagian Belakang Reaktor No. 17 No. 1 Maret 2017 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 17 (1), 0
364	Front Mattter Vol 18 No. 1 March 2018 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 18 (1), 0
365	Cover Depan Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (3), 0
366	Front Matter Reaktor Vol 16 No. 1 Maret 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (1), 0
367	Front Matter Reaktor Vol 17 No. 3 September 2017 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 17 (3), 0
368	Back Matter Vol 17 No. 04 December 2017 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 17 (4), 0
369	Front Matter Reaktor Vol 15 No. 4 Oktober 2015 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 15 (4), 0
370	Front Matter Reaktor Vol 16 No. 2 Juni 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (2), 0
371	Back Matter Vol 18 No. 01 March 2018 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 18 (1), 0
372	Back Matter Reaktor Vol 16 No. 1 Maret 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (1), 0
373	Back Matter Reaktor No. 17 No. 3 September 2017 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 17 (3), 0
374	Bagian belakang Vol 16 No. 3 September 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (3), 0
375	Back Matter Reaktor Vol 16 No. 2 Jun i 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (2), 0
376	Back Matter Reaktor Vol 15 No. 4 Oktober 2015 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 15 (4), 0
377	Bagian Belakang Reaktor Vol 16 No 4 2016 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 16 (4), 0
378	Bagian Belakang Reaktor Vol 17 No. 2 Juni 2017 Google Scholar 👨‍🔬 W Widayat 📚 Reaktor 17 (2), 0
379	Одержання гетерогенного лужного метоксидного каталізатора із зольного пилу та вапняку Google Scholar 👨‍🔬 W Widayat, M Christwardana, S Syaiful, H Satriadi, A Khaibar, MM Almaki
380	Treatment of Natural Rubber Wastewater using Photoactive Nanocomposite Membrane PSf/sulfonated ZnO: Performance Evaluation, HAZOP, and Risk Analysis Google Scholar 👨‍🔬 TD Kusworo, W Widayat, H Hadiyanto 📚 Waste Technology 10 (2), 35-49, 0
381	PENGEMBANGAN MATA KULIAH KEWIRAUSAHAAN DALAM BIDANG PANGAN BERBASIS LABORATORIUM Google Scholar 👨‍🔬 W Widayat, H Hadiyanto, P Purwanto 📚 Prosiding Seminar Nasional Integrasi Kebijakan dan Penguatan Industri …, 0
382	Reposisi Budaya dalam Mewujudkan Sustainabilitas Pembangunan Ekonomi Bangsa Google Scholar 👨‍🔬 W Widayat 📚 Bestari, 244794, 0
383	Biodiesel Production from Pao-Bulk Using Fe/Zeolite Catalyst by Wet Impregnation Method Google Scholar 👨‍🔬 W Widayat, RA Sumarno, YY Ananda, S Sulardjaka, H Hadiyanto, ... 📚 Zeolite Catalyst by Wet Impregnation Method, 0
384	PEMASARAN BATIK SECARA ONLINE DI DESA TRUSMI WETAN Google Scholar 👨‍🔬 ATRIO ASTRIYAH, N MEIDIANA, RA ADAWIYAH, W WIDAYAT
385	MODEL IMPLEMENTASI BANK DESAIN BAGI PRODUK INDUSTRI KERAJINAN LOGAM (METAL HANDICRAFT) DI JAWA TENGAH Google Scholar 👨‍🔬 W Widayat, A Budiyono, MBRW Samsudi
386	Unnes Science Education Journal Google Scholar 👨‍🔬 W Widayat, SS Kasmui
387	Adian Khoironi 1✉ Email adian. khoironi@ dsn. dinus. ac. id Hadiyanto Hadiyanto 2, 3 Inggar Dianratri 2 Falvocha Alifsmara Joelyna 2 Rifqi Ahmad Baihaqi 2 Google Scholar 👨‍🔬 WZ Pratiwi, AI Sabhira, WD Pratama, W Widayat, T Kataoka, ...
388	Pengaruh Konsentrasi Umpan Dan Temperatur Awal Pada Reaksi Transesterifikasi Biodiesel Berbantukan Ultrasonik Dari Minyak Goreng Secara Kontinu Google Scholar 👨‍🔬 N Aulia, W Widayat, S Budi Sasongko 📚 Peer Review dll, 0

1

Production of non-food feedstock based biodiesel using acid-base bifunctional heterogeneous catalysts: A review

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👨‍🔬 M Mulyatun, J Prameswari, I Istadi, W Widayat

📚 Fuel 314, 122749, 2022

2022

2

A review of bio-lubricant production from vegetable oils using esterification transesterification process

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👨‍🔬 AN Annisa, W Widayat

📚 MATEC Web of Conferences 156, 06007, 2018

2018

3

Application of foam-mat drying with egg white for carrageenan: drying rate and product quality aspects

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👨‍🔬 M Djaeni, A Prasetyaningrum, SB Sasongko, W Widayat, CL Hii

📚 Journal of food science and technology 52 (2), 1170-1175, 2015

2015

4

Synthesis and characterization of ZSM-5 catalyst at different temperatures

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👨‍🔬 W Widayat, AN Annisa

📚 IOP Conference Series: Materials Science and Engineering 214 (1), 012032, 2017

2017

5

Application of Spirulina platensis on ice cream and soft cheese with respect to their nutritional and sensory perspectives

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👨‍🔬 TW Agustini, WF Maâ, W Widayat, M Suzery, H Hadiyanto, S Benjakul

📚 Jurnal Teknologi (Sciences & Engineering) 78 (4-2), 2016

2016

6

Analisis pemanfaatan limbah tandan kosong kelapa sawit sebagai cofiring pada PLTU Batubara

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👨‍🔬 MF Praevia, W Widayat

📚 Jurnal Energi Baru dan Terbarukan 3 (1), 28-37, 2022

2022

7

Study on production process of biodiesel from rubber seed (hevea brasiliensis) by in situ (trans) esterification method with acid catalyst

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👨‍🔬 ADK Wibowo

📚 Energy Procedia 32, 64-73, 2013

2013

8

The development of heterogeneous catalyst C/CaO/NaOH from waste of green mussel shell (Perna varidis) for biodiesel synthesis

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👨‍🔬 H Hadiyanto, AH Afianti, UI Navi’a, NP Adetya, W Widayat, H Sutanto

📚 Journal of environmental chemical engineering 5 (5), 4559-4563, 2017

2017

9

Optimasi proses adsorbsi minyak goreng bekas dengan adsorbent zeolit alam: Studi pengurangan bilangan asam

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👨‍🔬 S Widayat, K Haryani

📚 Jurnal Teknik Gelagar 17 (1), 77-82, 2006

2006

10

Potensi gliserol dalam pembuatan turunan gliserol melalui proses esterifikasi

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👨‍🔬 AE Prasetyo, A Widhi, W Widayat

📚 Jurnal Ilmu Lingkungan UNDIP 10 (1), 26-31, 2012

2012

11

Pendampingan sertifikasi halal pada umkm hanum food (halal certification support in umkm hanum food)

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👨‍🔬 W Widayat, S Sulardjaka, AN Al-Baarri, R Nurjannah

📚 Indonesia journal of Halal 3 (1), 83-87, 2020

2020

12

Preparation of heterogeneous CaO catalysts for biodiesel production

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👨‍🔬 W Widayat, T Darmawan, H Hadiyanto, RA Rosyid

📚 Journal of physics: conference series 877 (1), 012018, 2017

2017

13

Optimization of flocculation efficiency and settling time using chitosan and eggshell as bio-flocculant in Chlorella pyrenoidosa harvesting process

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👨‍🔬 H Hadiyanto, M Christwardana, W Widayat, AK Jati, SI Laes

📚 Environmental Technology & Innovation 24, 101959, 2021

2021

14

HALAL LOGISTICS PERFORMANCE AND CUSTOMER LOYALTY: FROM THE LITERATURE REVIEW TO A CONCEPTUAL FRAMEWORK.

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👨‍🔬 I Masudin, FW Fernanda

📚 International Journal of Technology 9 (5), 2018

2018

15

Preparation and characterization of Anadara Granosa shells and CaCO3 as heterogeneous catalyst for biodiesel production

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👨‍🔬 H Hadiyanto, SP Lestari, W Widayat

📚 Bulletin of Chemical Reaction Engineering and Catalysis 11 (1), 21-26, 2016

2016

16

The flocculation process of Chlorella sp. using chitosan as a bio-flocculant: Optimization of operating conditions by response surface methodology

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👨‍🔬 H Hadiyanto, W Widayat, M Christwardana, ME Pratiwi

📚 Current Research in Green and Sustainable Chemistry 5, 100291, 2022

2022

17

The development of fly ash-supported CaO derived from mollusk shell of Anadara granosa and Paphia undulata as heterogeneous CaO catalyst in biodiesel …

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👨‍🔬 H Hadiyanto, SP Lestari, A Abdullah, W Widayat, H Sutanto

📚 International Journal of Energy and Environmental Engineering 7 (3), 297-305, 2016

2016

18

Multi-Feedstock Biodiesel Production from Esterification of Calophyllum inophyllum Oil, Castor Oil, Palm Oil, and Waste Cooking Oil.

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👨‍🔬 H Hadiyanto, AP Aini, W Widayat, K Kusmiyati, A Budiman, A Rosyadi

📚 International Journal of Renewable Energy Development 9 (1), 2020

2020

19

Biodiesel Production from Reutealis Trisperma Oil Using KOH Impregnated Eggshell as a Heterogeneous Catalyst

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👨‍🔬 K Kusmiyati, D Prasetyoko, S Murwani, M Nur Fadhilah, TP Oetami, ...

📚 Energies 12 (19), 3714, 2019

2019

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Performance evaluation of modified nanohybrid membrane polyethersulfone-nano ZnO (PES-nano ZnO) using three combination effect of PVP, irradiation of ultraviolet and thermal …

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👨‍🔬 TD Kusworo, W Widayat, DP Utomo, YHS Pratama, RAV Arianti

📚 Renewable Energy 148, 935-945, 2020

2020

21

Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production

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👨‍🔬 J Prameswari, W Widayat, L Buchori, H Hadiyanto

📚 Environmental Science and Pollution Research 30 (44), 98832-98847, 2023

2023

22

Real time-polymerase chain reaction (RT-PCR) sebagai alat deteksi DNA babi dalam beberapa produk non-pangan

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👨‍🔬 W Widayat, TW Agustini, M Suzery, AN Al-Baarri, SR Putri, K Kurdianto

📚 Indonesia Journal of Halal 2 (1), 26-33, 2019

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23

Influence of desilication route of ZSM-5 zeolite in mesoporous zeolite supported calcium oxide catalyst for biodiesel production

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👨‍🔬 NS Lani, N Ngadi, IM Inuwa, LA Opotu, ZY Zakaria, W Widayat

📚 Microporous and Mesoporous Materials 343, 112153, 2022

2022

24

Potency of microalgae as biodiesel source in Indonesia

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👨‍🔬 H Hadiyanto, W Widayat, AC Kumoro

📚 International journal of renewable energy development 1 (1), 23-27, 2012

2012

25

Design of dual blockchain-based with point of authority for halal traceability system application on fresh meat-based supply chain

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👨‍🔬 W Adhiwibowo, W Widayat, WA Syafei

📚 Results in Engineering 26, 105133, 2025

2025

26

Produksi Hidrogen dengan Memanfaatkan Sumber Daya Energi Surya dan Angin di Indonesia

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👨‍🔬 MS Hasan, W Widayat

📚 Jurnal Energi Baru dan Terbarukan 3 (1), 38-48, 2022

2022

27

Diversifikasi tepung mocaf menjadi produk mie sehat di PT. Tepung Mocaf Solusindo

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👨‍🔬 JP Yuliyandjaja, W Widayat, H Hadiyanto, M Suzery, IA Budianto

📚 Indonesia Journal of Halal 2 (2), 40-45, 2020

2020

28

Proses Perbaikan Produksi Dalam Pendampingan Sertifikasi Halal Bagi Paguyuban Usaha Kuliner

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👨‍🔬 M Suzery, W Widayat, B Cahyono, AN Al-Baarri

📚 Indonesia Journal of Halal 2 (2), 53-57, 2020

2020

29

Biodiesel production by using CaO catalyst and ultrasonic assisted

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👨‍🔬 W Widayat, T Darmawan, RA Rosyid, H Hadiyanto

📚 Journal of Physics: Conference Series 877 (1), 012037, 2017

2017

30

Effect of temperature and concentration of zeolite catalysts from geothermal solid waste in biodiesel production from used cooking oil by esterification–transesterification process

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👨‍🔬 L Buchori, W Widayat, O Muraza, MI Amali, RW Maulida, J Prameswari

📚 Processes 8 (12), 1629, 2020

2020

31

Modification of magnetic nanoparticle lipase catalyst with impregnation of activated carbon oxide (ACO) in biodiesel production from PFAD (palm fatty acid distillate)

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👨‍🔬 L Buchori, W Widayat, H Hadiyanto, H Satriadi, N Chasanah, ...

📚 Bioresource Technology Reports 19, 101137, 2022

2022

32

Copper and Lead Ions Removal by Electrocoagulation: Process Performance and Implications for Energy Consumption.

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👨‍🔬 A Prasetyaningrum, D Ariyanti, W Widayat, B Jos

📚 International Journal of Renewable Energy Development 10 (3), 2021

2021

33

Pembuatan Katalis H-Zeolit dengan Impregnasi KI/KIO3 dan Uji Kinerja Katalis Untuk Produksi Biodiesel

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👨‍🔬 LH Firdaus, AR Wicaksono, W Widayat

📚 Jurnal Teknologi Kimia dan Industri, 148-154, 2013

2013

34

Pemurnian minyak goreng bekas dengan menggunakan adsorbent zeolit dan bleaching earth

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👨‍🔬 A Taufiq, A Hendro, W Widayat, L Edward

📚 Indonesia Journal of Halal 4 (1), 16-24, 2022

2022

35

Liquid waste processing of tofu industry for biomass production as raw material biodiesel production

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👨‍🔬 W Widayat, J Philia, J Wibisono

📚 IOP Conference Series: Earth and Environmental Science 248 (1), 012064, 2019

2019

36

Preparation of MgO-CaO/SiO2 catalyst from dolomite and geothermal solid waste for biodiesel production.

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👨‍🔬 W Widayat, NT Maheswari, W Fitriani, L Buchori, H Satriadi, K Kusmiyati, ...

📚 International Journal of Renewable Energy Development 12 (3), 541, 2023

2023

37

Analisis Pemahaman UMKM di Kota Semarang terhadap Kebijakan Produk Halal

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👨‍🔬 W Widayat, M Suzery, HT Ardianto

📚 Jurnal Riptek 16 (2), 153-160, 2022

2022

38

Effect of pH, cationic inducer, and clam shells as bio-flocculant in the optimization of the flocculation process for enhanced microalgae harvesting using response surface …

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👨‍🔬 H Hadiyanto, W Widayat, ME Pratiwi, M Christwardana, K Muylaert

📚 Environmental Pollutants and Bioavailability 34 (1), 338-351, 2022

2022

39

Production of fuels from HDPE and LDPE plastic waste via pyrolysis methods

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👨‍🔬 EH Istoto, Widayat, S Saptadi

📚 E3S Web of Conferences 125, 14011, 2019

2019

40

Preparation of KI/hydroxyapatite catalyst from phosphate rocks and its application for improvement of biodiesel production

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👨‍🔬 W Widayat, H Hadiyanto, PWA Wardani, U Az Zuhra, J Prameswari

📚 Molecules 25 (11), 2565, 2020

2020

41

Enhanced anti-fouling behavior and performances of nano hybrid PES-SiO2 and PES-ZnO membranes for produced water treatment

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👨‍🔬 TD Kusworo, AF Ismail, N Aryanti, W Widayat, Q Qudratun, DP Utomo

📚 Jurnal Teknologi (Sciences & Engineering) 79 (6), 2017

2017

42

Kinetic study on esterification of oleic acid with ultrasound assisted

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👨‍🔬 DD Suprarukmi, BA Sudrajat

📚 Procedia Environmental Sciences 23, 78-85, 2015

2015

43

Response surface optimization of UV/H2O2-based photo-oxidative degradation of amoxicillin

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👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat

📚 Results in Engineering 21, 101836, 2024

2024

44

Analisis Kualitas Udara pada Kawasan Transportasi, Industri, Perkotaan, Permukiman, dan Perdagangan di Kota Tegal

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👨‍🔬 D Winatama, W Widayat, S Syafrudin

📚 Jurnal Ilmu Lingkungan 21 (2), 381-386, 2023

2023

45

Preparation of α-Fe2O3-Al2O3 catalysts and catalytic testing for biodiesel production

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👨‍🔬 W Widayat, DA Putra, I Nursafitri

📚 Materials Today: Proceedings 13, 97-102, 2019

2019

46

Synthesis H-Zeolite catalyst by impregnation KI/KIO3 and performance test catalyst for biodiesel production

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👨‍🔬 W Widayat, AR Wicaksono, LH Firdaus, N Okvitarini

📚 IOP Conference Series: Materials Science and Engineering 107 (1), 012044, 2016

2016

47

Synthesis of zeolite X molecular sieve from geothermal solid waste

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👨‍🔬 H Satriadi, B Cahyono, WIST Astuti, P Febrianti

📚 Materials today: proceedings 13, 137-142, 2019

2019

48

Synthesis method effect on the catalytic performance of acid–base bifunctional catalysts for converting low-quality waste cooking oil to biodiesel

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👨‍🔬 M Mulyatun, J Prameswari, I Istadi, W Widayat

📚 Catalysis Letters 154 (8), 4837-4855, 2024

2024

49

Aluminum-based activation of natural zeolite for glycerol steam reforming

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👨‍🔬 J Philia, W Widayat, S Sulardjaka, GA Nugroho, AN Darydzaki

📚 Results in Engineering 19, 101247, 2023

2023

50

Pengaruh tekanan kompaksi dan perekat terhadap karakteristik briket limbah daun cengkeh

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👨‍🔬 AB Biantoro, W Widayat

📚 Jurnal Inovasi Mesin 3 (2), 18-28, 2021

2021

51

Entrepreneurial attitude and students business start-up intention: A partial least square modeling

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👨‍🔬 W Widayat

📚 Jurnal Manajemen Dan Kewirausahaan 19 (1), 46-53, 2017

2017

52

Biodiesel production from rubber seed oil via esterification process

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👨‍🔬 W Widayat, S Suherman

📚 International Journal of Renewable Energy Development 1 (2), 57-60, 2012

2012

53

Synthesis and characterization of physically mixed V2O5. CaO as bifunctional catalyst for methyl ester production from waste cooking oil

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👨‍🔬 M Mulyatun, I Istadi, W Widayat

📚 International Journal of Renewable Energy Development 12 (2), 381, 2023

2023

54

Bio-oil and fuel gas production from agricultural waste via pyrolysis: a comparative study of oil palm empty fruit bunches (OPEFB) and rice husk

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👨‍🔬 TD Kusworo, W Widayat, AF Mahadita, D Firizqina, DP Utomo

📚 Periodica Polytechnica Chemical Engineering 64 (2), 179-191, 2020

2020

55

Synthesis and catalytic evaluation of hematite (α-Fe2O3) magnetic nanoparticles from iron sand for waste cooking oil conversion to produce biodiesel through …

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👨‍🔬 Widayat, DA Putra, I Nursafitri

📚 IOP conference series: materials science and engineering 509 (1), 012035, 2019

2019

56

Study of rendement of red ginger essential oil from red ginger waste by using steam distillation process

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👨‍🔬 W Widayat, AS Dita, C Bambang, S Hantoro

📚 E3S Web of Conferences 73, 07002, 2018

2018

57

Pemanfaatan limbah cair industri tahu untuk produksi biomassa mikroalga nannochloropsis sp sebagai bahan baku biodiesel

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👨‍🔬 W Widayat, H Hadiyanto

📚 Reaktor 15 (4), 253-260, 2015

2015

58

Pengaruh jenis ikan terhadap rendemen pembuatan gelatin dari ikan dan karakteristik gelatinnya

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👨‍🔬 TW Agustini, W Widayat, M Suzery, YS Darmanto, I Mubarak

📚 Indonesia Journal of Halal 2 (2), 46-52, 2020

2020

59

Antioxidant activity and total phenolic content in Red Ginger (Zingiber officinale) based drinks

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👨‍🔬 Widayat, B Cahyono, H Satriadi, S Munfarida

📚 IOP Conference Series: Earth and Environmental Science 102 (1), 012025, 2018

2018

60

Diethyl Ether Production Process with Various Catalyst Type

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👨‍🔬 W Widayat, R Achmad, R Muhammad

📚 International Journal of Science and Engineering 4 (1), 6-10, 2013

2013

61

Response surface optimization of ciprofloxacin degradation using UV/O3 oxidation process

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👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat, RA Baihaqi

📚 Results in Engineering 24, 103299, 2024

2024

62

Pengaruh Ukuran Partikel Dan Tekanan Kompaksi Terhadap Karakteristik Briket Kayu Jati

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👨‍🔬 EI Briyartendra, W Widayat

📚 Jurnal Inovasi Mesin 1 (2), 18-29, 2019

2019

63

Biodiesel production from bulk frying oil with ultrasound assisted.

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👨‍🔬 W Widayat, H Satriadi, O Yuariski, D Murwono

2013

64

Pemantauan kualitas udara kota tegal (studi kasus: Kecamatan tegal selatan, kecamatan tegal barat, kecamatan tegal timur)

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👨‍🔬 A Pradifan, W Widayat, A Suprihanto

📚 Jurnal Ilmu Lingkungan 19 (1), 73-82, 2021

2021

65

UV irradiation and ozone treatment of κ-carrageenan: kinetics and products characteristics

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👨‍🔬 A Prasetyaningrum, W Widayat, B Jos, Y Dharmawan, R Ratnawati

📚 Bulletin of Chemical Reaction Engineering & Catalysis 15 (2), 319-330, 2020

2020

66

Study of utilization liquid smoke and carrageenan as a natural antibacterial in manufacturing beef meatballs

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👨‍🔬 W Widayat, N Arifiani S, N Yaqin, AN Al Baarri

📚 IOP Conference Series: Earth and Environmental Science 102 (1), 012060, 2018

2018

67

Kinetic Study on Ultrasound Assisted Biodiesel Production from Waste Cooking Oil.

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👨‍🔬 HN Aulia, SB Sasongko

📚 Journal of Engineering & Technological Sciences 47 (4), 2015

2015

68

The effect of stacking sequence on the properties of hybrid agel/glass fiber reinforced polymer composite laminates

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👨‍🔬 MI Nuryanta, RD Widodo, A Mujaki, Rusiyanto, Kriswanto, W Widayat, ...

📚 IOP Conference Series: Earth and Environmental Science 1381 (1), 012014, 2024

2024

69

Proses pengambilan minyak dari limbah padat biji karet dengan metode ekstraksi berpengaduk

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👨‍🔬 A Wildan, I Hartati, W Widayat

📚 Majalah Ilmiah Momentum 9 (1), 2013

2013

70

Penentu perilaku berinvestasi

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👨‍🔬 W Widayat

📚 Journal of Innovation in Business and Economics 1 (02), 2010

2010

71

Hadiyanto.(2017). Study on the effect of different concentration of Spirulina platensis paste added into dried noodle to its quality characteristics

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👨‍🔬 TW Agustini, WF Ma’ruf, W Widayat, A Wibowo

📚 IOP Conf. Series: Earth and Environmental, 1-9, 0

72

Analisis kesulitan siswa dalam menyelesaikan masalah matematika pada materi fungsi

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👨‍🔬 S Handayani, AH Rosyidi, W Widayat

📚 Jurnal Pendidikan Matematika 1 (4), 1-15, 2024

2024

73

Hydrocracking of coconut oil on the NiO/Silica-rich zeolite synthesized using a quaternary ammonium surfactant

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👨‍🔬 H Susanto, A Darmawan

📚 Indonesian Journal of Chemistry 21 (2), 361-375, 2021

2021

74

Photochemical oxidation process of copper from electroplating wastewater: Process performance and kinetic study

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👨‍🔬 A Prasetyaningrum, T Riyanto, M Djaeni, W Widayat

📚 Processes 8 (10), 1276, 2020

2020

75

Production of Fuels From High Density Polyethylene and Low Density Polyethylene Plastic Wastes via Pyrolysis Methods

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👨‍🔬 EH Istoto, W Widayat, S Saptadi

📚 Iranica Journal of Energy & Environment 10 (3), 185-189, 2019

2019

76

Biodiesel production from multi feedstock as feed with direct ultrasound assisted

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👨‍🔬 Widayat, H Satriadi, NF Nafiega, R Dipo, Okvitarini, AJ Alimin, MFM Ali

📚 AIP Conference Proceedings 1699 (1), 030020, 2015

2015

77

Ultrasound assisted esterification of rubber seed oil for biodiesel production

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👨‍🔬 F Berkah, K Tamtomo

📚 International Journal of Renewable Energy Development 1 (1), 1-5, 2012

2012

78

Studi Awal Pengembangan Jaringan Inkubator Teknologi & Bisnis Pada Institusi Pendidikan Tinggi Di Indonesia

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👨‍🔬 W Widayat, SI Jamaran

📚 Jurnal Matematika Sains dan Teknologi 10 (1), 47-53, 2009

2009

79

Wibowo, and Hadiyanto, 2013. Study on production process of biodiesel from rubber seed (hevea brasiliensis) by in situ (trans) esterification method with acid catalyst

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👨‍🔬 ADK Widayat

📚 Energy Procedia 32, 64-73, 0

80

Empirical model of public participation intention in biomass project based on integrated TAM-TPB model

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👨‍🔬 M Triani, A Nurfanani, IA Aditya, A Susanty, KI Cahyaningrum, W Widayat, ...

📚 Scientific Reports 15 (1), 6602, 2025

2025

81

Pengukuran Kandungan DNA Babi Dalam Berbagai Produk Pangan Dengan Metode Real Time-Polymerase Chain Reaction (RT-PCR)

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👨‍🔬 RY Luluk, W Widayat, AT Winarni, S Meiny, AA Ni’matullah

📚 Indonesia Journal of Halal 3 (2), 129-133, 2021

2021

82

Fabrication and characterization of nano hybrid cellulose acetate-nanoTiO2/crosslinked polyvinyl alcohol coated membrane for crude clove oil purification

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👨‍🔬 TD Kusworo, W Widayat, DP Utomo

📚 Periodica Polytechnica Chemical Engineering 64 (3), 304-319, 2020

2020

83

Synthesis of silica-rich zeolite using quaternary ammonium-based templates

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👨‍🔬 S Sriatun, H Susanto, W Widayat, A Darmawan, S Sriyanti, R Kurniasari, ...

📚 Journal of Physics: Conference Series 1524 (1), 012087, 2020

2020

84

Pengaruh umpan terhadap keefektifan pitfall trap untuk mendukung praktikum ekologi hewan di Laboratorium Ekologi FMIPA Unsyiah

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👨‍🔬 AS Jaya, W Widayat

📚 Jurnal Bioleuser 2 (3), 2018

2018

85

Karakteristik Briket Cetak Panas Berbahan Kayu Sengon Dengan Penambahan Arang Tempurung Kelapa

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👨‍🔬 D Pujasakti, W Widayat

📚 Sainteknol: Jurnal Sains Dan Teknologi 16 (1), 21-32, 2018

2018

86

Biofuel production by catalytic cracking method using Zn/HZSM-5 catalyst

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👨‍🔬 SA Saputro, EM Ginting, AN Annisa, H Satriadi

📚 ARPN Journal of Engineering and Applied Sciences 12 (22), 6347-6351, 2017

2017

87

Pembuatan biodiesel dari minyak goreng bekas dengan proses CATALYTIC CRACKING

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👨‍🔬 Z Ida

2015

88

Evaluation and modification of processes for bioethanol separation and production

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👨‍🔬 PS Johnner, HS Tatang

📚 International Journal of Renewable Energy Development 1 (1), 15-22, 2012

2012

89

Effect of Hydrogen Co-Firing with Natural Gas on Thermal Efficiency and CO2 Emissions in Gas Turbine Power Plant

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👨‍🔬 RR Nugraha, S Silviana, W Widayat

📚 Hydrogen 6 (1), 18, 2025

2025

90

Optimization of sequential microwave-ultrasonic-assisted extraction of flavonoid compounds from Moringa oleifera

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👨‍🔬 A Prasetyaningrum, W Widayat, B Jos, R Ratnawati, T Riyanto, ...

📚 Trends in Sciences 20 (1), 6401-6401, 2023

2023

91

Life cycle assessment for evaluating the energy balance of the multi-feedstock biodiesel production process in Indonesia

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👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, J Adiansyah, ...

📚 International Journal of Ambient Energy 44 (1), 1255-1270, 2023

2023

92

Pendampingan Sertifikasi Laik Sehat Makanan Bagi Restoran Selaras Dalam Rangka Persiapan Sertifikasi Halal

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👨‍🔬 W Widayat, H Hadiyanto, AN Al-Baarri, SR Putri

📚 Indonesia Journal Of Halal 2 (2), 58-63, 2020

2020

93

The Color Analysis of Noodle Made from Modified Cassava Flour

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👨‍🔬 A Ni’matullah Al-Baarri, Widayat, B Cahyono, A Baety Nirbaya, ...

📚 IOP Conference Series: Earth and Environmental Science 518 (1), 012041, 2020

2020

94

Production of biodiesel from waste cooking oil using heterogeneous catalysts KI/γ-Al2O3

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👨‍🔬 W Widayat, H Hadiyanto, E Purbaningdyah, I Suryanto, A Budiman, ...

📚 Journal of Environmental Engineering and Science 15 (3), 107-112, 2020

2020

95

Effects Of Bond’s Interest Rate, Rating And Maturity Time Toward Bond’S Yields

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👨‍🔬 A Mega, W Widayat

📚 Manajemen Bisnis 9 (1), 2019

2019

96

Preparation and Characterization of NiMo/Al2O3Catalyst for Hydrocracking Processing

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👨‍🔬 A Widiyadi, G Adil Guspiani, J Riady, R Andreanto, S Dea Chaiunnisa, ...

📚 E3S Web of Conferences 31, 03011, 2018

2018

97

The effect of adding CTAB template in ZSM-5 synthesis

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👨‍🔬 W Widayat, AN Annisa

📚 AIP Conference Proceedings 1904 (1), 020061, 2017

2017

98

Proses produksi triasetin dari gliserol dengan katalis asam sulfat

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👨‍🔬 W Widayat, H Satriado, A Abdullah, IWK Handono

📚 Jurnal Teknik Kimia Indonesia 11 (4), 192-198, 2013

2013

99

Pengaruh Waktu Dealuminasi dan Jenis Sumber Zeolit Alam terhadap Kinerja H-Zeolit untuk Proses Dehidrasi Etanol

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👨‍🔬 W Widayat, A Roesyadi, M Rachimoellah

📚 Reaktor 13 (1), 51-57, 2010

2010

100

Chemical and Microstructural Changes in Reclaimed Asphalt Pavement Aggregates by Pyrolysis

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👨‍🔬 M Qomaruddin, HA Lie, Purwanto, Widayat

📚 Arabian Journal for Science and Engineering 49 (10), 13429-13438, 2024

2024

101

Penggunaan ekstrak kulit pisang ambon sebagai baku pembuatan moutwash herbal

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👨‍🔬 TN Banowati, S Silviana, W Widayat

📚 Indonesia journal of halal 6 (1), 27-33, 2023

2023

102

Dual Blockchain Framework for Halal Food Safety and Tracebility Concern With Internet of Things

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👨‍🔬 W Adhiwibowo, W Widayat, WA Syafei

📚 2023 International Conference on Technology, Engineering, and Computing …, 2023

2023

103

Synthesis of zeolite catalyst from geothermal solid waste for crude glycerol dehydration to acrolein

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👨‍🔬 W Widayat, J Philia, T Farsha, F Rifaldi

📚 Key Engineering Materials 849, 130-136, 2020

2020

104

Process integration of sulfuric acid plant based on contact process

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👨‍🔬 M Alhanif, G Sanyoto, W Widayat

📚 Frontiers in Heat and Mass Transfer (FHMT) 15 (1), 2020

2020

105

The browning value changes and spectral analysis on the Maillard reaction product from glucose and methionine model system

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👨‍🔬 AN Al-Baarri, AM Legowo, Widayat

📚 IOP conference series: earth and environmental science 102 (1), 012003, 2018

2018

106

Ultrasound Assisted in Situ Esterification of Rubber Seeds Oil for Biodiesel Production

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👨‍🔬 H Hadiyanto, W WIdayat, A Duma

📚 International Journal of Engineering 29 (12), 1635-1641, 2016

2016

107

Surface modification of ultra thin PES-zeolite using thermal annealing to increase flux and rejection of produced water treatment

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👨‍🔬 TD Kusworo, Widayat, AW Pradini, YP Armeli

📚 AIP conference proceedings 1699 (1), 040015, 2015

2015

108

Ozone-based Advanced Oxidation Process for pharmaceutical contamination in wastewater: A review

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👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat

📚 E3S Web of Conferences 605, 03058, 2025

2025

109

Performance of NiMo-Al2O3 catalyst in biokerosene production via hydrocracking of dirty palm oil

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👨‍🔬 L Buchori, W Widayat, O Muraza, A Prasetyaningrum, J Prameswari, ...

📚 International Journal of Ambient Energy 43 (1), 7987-7997, 2022

2022

110

Pengaruh Katalis Genteng Tanah Liat dalam Proses Produksi Bahan Bakar Cair dari Limbah Ban Bekas dengan Proses Pirolisis

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👨‍🔬 AA Arahim, W Widayat, H Hadiyanto

📚 Jurnal Energi Baru dan Terbarukan 1 (2), 62-67, 2020

2020

111

Improvement in nano-hybrid membrane PES–nanosilica performance using ultra violet irradiation and acetone–ethanol immersion for produced water treatment

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👨‍🔬 TD Kusworo, N Aryanti, Qudratun, DP Utomo, Widayat

📚 International Journal of Environmental Science and Technology 16 (2), 973-986, 2019

2019

112

Penentuan waktu perendaman sel (fase mitosis) akar bawang merah (Allium ascalonicum L.) menggunakan safranin untuk mendukung praktikum biologi

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👨‍🔬 FN Abdullah, AS Jaya, W Widayat

📚 Jurnal Bioleuser 1 (3), 86-91, 2017

2017

113

Rancang Bangun Dan Uji Alat Proses Peningkatan Minyak Cengkeh Pada Klaster Minyak Atsiri Kabupaten Batang

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👨‍🔬 W Widayat, B Cahyono, N Ngadiwiyana

📚 Jurnal Ilmu Lingkungan Undip 10 (2), 64-69, 2012

2012

114

Proses Produksi Etanol oleh Saccharomyces Cerivisiae dengan Operasi Kontinyu pada Kondisi Vakum

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👨‍🔬 T Supriyanto, W Wahyudi

📚 Jurusan Teknik Kimia Fakultas Teknik, 2010

2010

115

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👨‍🔬 L Buchori

📚 Pembuatan biodiesel dari minyak goreng bekas Dengan Proses Catalytic …, 0

116

Evaluating the environmental impacts at the end point level of the biodiesel production process from multiple feedstocks in Indonesia through life cycle assessment methodology

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👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, JS Adiansyah, ...

📚 Waste and Biomass Valorization 14 (9), 3115-3131, 2023

2023

117

Oil and gas characteristics of coal with pyrolysis process

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👨‍🔬 Widayat, H Satriadi, LP Wibawa, GF Hanif, M Qomaruddin

📚 AIP Conference Proceedings 2453 (1), 020077, 2022

2022

118

Palm oil milling effluent (POME) waste processing by using microalgae Chlamydomonas sp

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👨‍🔬 R Yonas, U Irzandi, H Satriadi, W Widayat, M Christwardana, H Hadiyanto

📚 Journal of Bioresources and Environmental Sciences 1 (2), 63-69, 2022

2022

119

Study of Energy Integration in Chlorobenzene Production Process Using Pinch Technology.

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👨‍🔬 W Widayat, MTMN Saeed, S Sulardjaka, A Suprihanto, P Wahyudi

📚 International Journal on Engineering Applications 10 (6), 2022

2022

120

Pengaruh konsentrasi ragi pada pembuatan inositol dari lamtoro gung dengan proses fermentasi

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👨‍🔬 W Widayat, Y Nasir, AMIA Asfar

📚 Indonesia Journal of Halal 4 (1), 25-31, 2021

2021

121

Heat integration analysis of preliminary plant design of glycerol conversion into propylene glycol

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👨‍🔬 T Riyanto, FMY Putri, W Widayat

📚 International Journal on Engineering Applications 7 (6), 204-209, 2019

2019

122

Thermoelectric application in energy conservation

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👨‍🔬 A Muhamad Zuhud, F Mochammad, W Widayat

📚 E3S Web of Conferences 73, 01009, 2018

2018

123

Study of Polymeric Membranes Potential for Eugenol Purification from Crude Clove leaf Oil

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👨‍🔬 TD Kusworo, D Soetrisnanto, W Widayat, B Budiyono, DP Utomo

📚 ASEAN Journal of Chemical Engineering 18 (2), 81-92, 2018

2018

124

Pengembangan Sistem Informasi Manajemen Rekrutmen Asisten Laboratorium Studi Kasus: Laboratorium Terpadu Teknik Informatika UII

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👨‍🔬 FI Setiawan, AR Adiningsih, W Widayat, F Wijayanto

📚 Jurnal Seminar Nasional Aplikasi Teknologi Informasi, 2012

2012

125

Optimasi Pengambilan Minyak Dari Limbah Padat Biji Karet Dengan Metode Sokhletasi

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👨‍🔬 A Wildan, I Hartati, W Widayat

📚 Majalah Ilmiah Momentum 8 (2), 2012

2012

126

Pengaruh konsentrasi HCl dan jenis reaktan dalam pembuatan katalis zeolit untuk proses dehidrasi dari zeolit alam

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👨‍🔬 M Widayat, A Roesyadi, M Rachimoellah

📚 Proceeding on Seminar Nasional Rekayasa Kimia dan Proses. Semarang: Chemical …, 2008

2008

127

A., dan Anggraeni, H. 2012. Proses Produksi Katalis Zeolit X Dan Uji Aktifitas Dalam Proses Penukaran Ion Kalsium

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👨‍🔬 S Widayat

📚 Jurnal Teknik 33, 0852-169, 0

128

Mapping analysis of biomass potential on Java Island for supporting power plant: A review

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👨‍🔬 M Triani, A Nurfanani, IA Aditya, W Widayat, A Susanty, I Kristianingsih, ...

📚 E3S Web of Conferences 519, 02012, 2024

2024

129

Zeolite addition in microalgae Chlorella sp. for treatment of bacteria contaminated vinasse

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👨‍🔬 GPI Budianto, YM Wibowo, H Hadiyanto, W Widayat

📚 Environmental Quality Management 33 (3), 121-127, 2024

2024

130

Karakteristik Bahan Alternatif Kampas Rem dari Komposit Berpenguat Serbuk Serbuk Kayu Jati, Serbuk Tempurung Kelapa, dan Serbuk Kuningan dengan Variasi Suhu Post Curing

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👨‍🔬 C Pramono, W Widayat, A Suprihanto

📚 Jurnal Profesi Insinyur Indonesia 1 (7), 235-241, 2024

2024

131

Sistem Transportasi Penumpang Untuk Rute Yogyakarta–Bandara Yogyakarta International Airport Kulon Progo

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👨‍🔬 H Yudariansyah, W Widayat, S Sulardjaka

📚 Jurnal Profesi Insinyur Indonesia 1 (1), 9-17, 2023

2023

132

Amorphous adsorbent from geothermal solid waste for methylene blue removal

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👨‍🔬 J Philia, W Widayat, S Sulardjaka

📚 Journal of Environmental Engineering and Science 18 (1), 1-9, 2023

2023

133

Effect of temperature, time, and acid concentration on ph hydrolysis of gelatin with ultrasonic method

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👨‍🔬 W Widayat, TW Agustini, M Suzery, YL Rahmania, F Meutia, GSI Tarigan

📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023

2023

134

Effect of Temperature and Tapioca Flour Concentration on Manufacture of CaO·SiO2 Heterogeneous Catalyst Pellets Made from Brick Burning Ash for Biodiesel …

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👨‍🔬 N Iskandar, W Widayat, S Sulardjaka, S Syaiful, F Fuadi, F Handayani

📚 Catalysts 13 (6), 945, 2023

2023

135

Biodiesel production from used cooking oil with assisted sun light and Fresnel solar concentrator

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👨‍🔬 Widayat, Abdullah, SB Sasongko, DH Wardhani, A Hadiyarto, A Nugroho, ...

📚 AIP Conference Proceedings 2197 (1), 030001, 2020

2020

136

Biodiesel production from waste cooking oil by using zirconia catalyst

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👨‍🔬 K Nisa, DAA Salwa, A Hasanah, Widayat

📚 AIP Conference Proceedings 2217 (1), 030120, 2020

2020

137

Starch production from red ginger (Zinggiber officinale Rosc.)

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👨‍🔬 W Widayat, H Striadi, S Syaiful, A Kurnia, F Driastuti

📚 Jurnal Bahan Alam Terbarukan 7 (1), 96-99, 2018

2018

138

Production of Industry Salt with Sedimentation–Microfiltration Process: Optimazation of Temperature And Concentration By Using Surface Response Methodology

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👨‍🔬 W Widayat

📚 Teknik 30 (1), 11-18, 2009

2009

139

The effect of time dealumination and solvent concentration in synthesis of zeolite catalyst and catalytic test for diethyl ether production process

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👨‍🔬 Widayat, A Roesyadi, M Rachimoellah

📚 AIP Conference Proceedings 1169 (1), 106-112, 2009

2009

140

Prediction of Performance and Emissions Diesel Engines Fueled-Biodiesel Using Artificial Neural Network (ANN) Resilient Backpropagation Algorithm (Rprop)

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👨‍🔬 R Amrulloh, W Widayat, B Warsito

📚 International Journal of Artificial Intelligence Research 8 (2), 212-230, 2024

2024

141

Implementasi dan pelatihan penggunaan sistem informasi presensi kehadiran guru pada MIM Taraman Sragen

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👨‍🔬 D Gunawan, Y Sidiq, W Widayat, DP Muslimawati, CD Apriliana, ...

📚 Abdi Teknoyasa, 313-318, 2024

2024

142

Modification of charcoal briquette using binding agents improving the product quality: A review

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👨‍🔬 S Silviana, H Hadiyanto, W Widayat, F Dalanta, AN Sa’adah

📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023

2023

143

Pengaruh Komposisi Bahan Terhadap Mechanical Properties Pada Crucible Untuk Peleburan Aluminium

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👨‍🔬 R Rusiyanto, DF Fitriyana, RD Widodo, W Widayat, H Yudiono, ...

📚 Bookchapter Kimia Universitas Negeri Semarang, 197-221, 2022

2022

144

Optimization of biodiesel production from waste cooking oil using α-Fe2O3/HAP catalyst via simultaneous esterification-transesterification reaction

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👨‍🔬 W Widayat, H Hadiyanto, L Buchori, J Prameswari, RM Jeksen, ...

📚 Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 44 …, 2022

2022

145

Selection and cultivation of microalgae for CO2 biofixation

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👨‍🔬 Widayat, M Suzery, H Satriadi, Wahyudi, J Philia

📚 IOP Conference Series: Materials Science and Engineering 1053 (1), 012132, 2021

2021

146

The effect of impregnated type at kaolin catalyst on biodiesel production from used cooking oil

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👨‍🔬 W Widayat, N Okvitarini, J Philia

📚 AIP Conference Proceedings 2197 (1), 030009, 2020

2020

147

Optimum NaHCO3-to-vinasse ratio for Chlorella pyrenoidosa cultivation and poly-b-hydroxybutyrate (PHB) production

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👨‍🔬 GPI Budianto, YM Wibowo, H Hadiyanto, W Widayat

📚 Desalination and Water Treatment 207, 352-360, 2020

2020

148

Peningkatan produksi mocaf dengan rancang bangun alat pemotong

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👨‍🔬 W Widayat, H Hadiyanto, H Satriadi, M Suzery, IA Budianto

📚 Jurnal Ilmu Lingkungan 17 (3), 515-521, 2019

2019

149

Assessing the motives and gratification of virtual community

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👨‍🔬 W Widayat

📚 Journal of Innovation in Business and Economics 3 (02), 73-82, 2019

2019

150

E-consumer behavior: The roles of attitudes, risk perception on shopping intention-behavior

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👨‍🔬 W Widayat

📚 First Padang International Conference On Economics Education, Economics …, 2018

2018

151

Pelatihan Perancangan Komponen Otomotif Berbasis Autodesk Inventor Terhadap Kompetensi Peserta Didik SMK N 7 Semarang

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👨‍🔬 AM Khoiron, DH Al-Janan, W Widayat

📚 Prosiding Seminar Nasional Kolaborasi Pengabdian kepada Masyarakat 1 (1 …, 2018

2018

152

Optimization of eugenol extraction from clove oil using response surface methodology.

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👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana

2015

153

Optimization Process of H-Zeolite Catalyst Preparation with Surface Response Methods

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👨‍🔬 W Widayat, H Susanto, H Satriadi

📚 Green Chemistry Proceeding Of 9th Joint Conference on Chemistry, 124-129, 2014

2014

154

Pembuatan Biodiesel dari Minyak Goreng Menggunakan Katalis KOH dengan Penambahan Ekstrak Jagung

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👨‍🔬 N Okvitarini, M Hidayah, H Satriadi, W Widayat

📚 Jurnal Teknologi Kimia dan Industri 2 (2), 24-29, 2013

2013

155

Optimasi Proses Pembuatan Biodiesel Berbantukan Gelombang Ultrasonik dari Blending Minyak Kelapa Sawit (Crude Palm Oil) dan Minyak Jarak (Jatropha Curcas Oil)

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👨‍🔬 A Baharsyah, S Supriyandi, H Satriadi, W Widayat

📚 Jurnal Teknologi Kimia dan Industri 2 (2), 130-137, 2013

2013

156

Proses Produksi Katalis Zeolit X Dan Uji Aktifitas Dalam Proses Penukaran Ion Kalsium

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👨‍🔬 W Widayat, AS DP, H Anggraeni

📚 Teknik 33 (1), 4-7, 2012

2012

157

Producing sulfur coated urea by fluid bed wet coating method: drying kinetics and product quality

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👨‍🔬 W Suherman, M Djaeni

📚 Int. Rev. Chem. Eng., 2010

2010

158

Effect of HCl concentration and reactant type in the zeolite catalysts production for dehydration process of natural zeolites

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👨‍🔬 M Widayat, A Roesyadi, M Rachimoellah

📚 Proceeding on Seminar Nasional Rekayasa Kimia dan Proses. Chemical …, 2008

2008

159

Studi Pengurangan Bilangan Asam, Bilangan Peroksida dan Absorbansi dalam Proses Pemurnian Minyak Goreng Bekas dengan Zeolit Alam Aktif

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👨‍🔬 W Widayat

📚 Jurnal Rekayasa Kimia & Lingkungan 6 (1), 7-12, 2007

2007

160

Co-firing simulations with blending of low range coal and medium range coal on the performance of 615 MW capacity steam power plant and Indonesia carbon trading review

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👨‍🔬 K Apriliana Margawadi, Widayat, S Widodo Agung Suedy

📚 E3S Web of Conferences 605, 01005, 2025

2025

161

Characterization of Edible Film Made from Glucomannan Konjac Flour Modified Polyvinyl Alcohol (PVA) and Sorbitol as Plasticizer

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👨‍🔬 H Satriadi, W Widayat, BV Jonfita, NS Listyawijayanti

📚 Journal of Bioresources and Environmental Sciences 4 (1), 46-54, 2025

2025

162

Comparative Study of Airport Layer Thickness Planning Between US Army Corp Graphical Method and Federal Aviation Administration (FAA) PCN-ACN and PCR-ACR Method

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👨‍🔬 WA Fistcar, B Sudarsono, W Widayat, AR Herlambang

📚 MEDIA KOMUNIKASI TEKNIK SIPIL 30 (1), 27-35, 2024

2024

163

Dunaliella salina Harvesting Using Spiral Electrocoagulation and Parameters Optimization Using Response Surface Method

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👨‍🔬 H Hadiyanto, M Christwardana, W Widayat, P Purwono, MA Budihardjo

📚 International Journal of Engineering 37 (12), 2489-2498, 2024

2024

164

Optimasi Komposisi MDEA dan MEA Sebagai Absorbent untuk Proses Penghilangan CO2 dalam Produksi Gas di Lapangan A

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👨‍🔬 H Sussatrio, H Hadiyanto, W Widayat

📚 Eksergi 21 (1), 29-37, 2024

2024

165

Techno-economic study on the application of reverse osmosis technology in the process of boiler feed water demineralization PT Puncak Jaya Power 3x65 MW

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👨‍🔬 L Lolo Bunga, Widayat, S Saptadi

📚 E3S Web of Conferences 519, 03012, 2024

2024

166

Sintesis, Karakterisasi dan Pengujian Katalis CaO-MgO/Fe2O3 dari Dolomit dan Pasir Besi untuk Pembuatan Biodiesel dari Minyak Goreng Bekas

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👨‍🔬 W Widayat, MAP Arman, E Syarief, L Buchori, S Sulardjaka

📚 TEKNIK 45 (1), 91-100, 2024

2024

167

Pengolahan Limbah Bahan Berbahaya dan Beracun (B3) dengan Teknologi Insinerasi pada Fasilitas Pengelolaan Limbah Teknologi Insinerasi pada Fasilitas Pengelolaan Limbah Terpadu …

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👨‍🔬 S Aji, W Widayat, DH Wardhani

📚 Jurnal Profesi Insinyur Indonesia 2 (1), 17-25, 2024

2024

168

Pelaksanaan Pembangunan Jembatan Penghubung RSUD Bendan Kota Pekalongan

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👨‍🔬 V Ramadhani, YA Priastiwi, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 2 (2), 104-110, 2024

2024

169

Analisis Efisiensi Eksergi Water Tube Boiler Pada Unit Penyediaan Steam di Salah Satu Plant Gas Processing Aceh, Indonesia

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👨‍🔬 AW Prasetyo, W Widayat, MSKTS Utomo

📚 Eksergi 21 (3), 209-219, 2024

2024

170

Efektivitas pemanfaatan MyUNNES-Keuangan konten aset dalam pengelolaan aset PTNBH

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👨‍🔬 W Widayat, A Mundzir, K Budiman

📚 ULIL ALBAB: Jurnal Ilmiah Multidisiplin 3 (11), 70-83, 2024

2024

171

HYDROGEN PRODUCTION FROM ETHANOL BY STEAM REFORMING OVER NICKEL AND COBALT GEOTHERMAL WASTE SUPPORTED CATALYST.

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👨‍🔬 J Philia, W Widayat, S Sulardjaka

📚 Rasayan Journal of Chemistry 16 (1), 2023

2023

172

PENGARUH DURASI PENCAMPURAN TERHADAP MECHANICAL PROPERTIES CRUCIBLE PELEBURAN ALUMINIUM

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👨‍🔬 R Rusiyanto, DF Fitriyana, RD Widodo, W Widayat, S Triyanto, MS Ilham, ...

📚 Bookchapter Kimia Universitas Negeri Semarang, 39-64, 2022

2022

173

Modifikasi pembuatan garam industri dari air laut dengan metode pengendapan-mikrofiltrasi

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👨‍🔬 A Elysia, D Sanjaya, W Widayat, K Kusmiyati

📚 Indonesia Journal of Halal 4 (2), 40-51, 2022

2022

174

Synthesis of nickel-cobalt impregnated catalyst using geothermal waste for hydrogen production

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👨‍🔬 J Philia, W Widayat, S Sulardjaka

📚 AIP Conference Proceedings 2453 (1), 020074, 2022

2022

175

Evaluasi Perancangan Pengering Surya Hibrid untuk Produk Pertanian dan Pangan

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👨‍🔬 S Suherman, W Widayat, S Silviana

📚 Indonesia Journal of Halal 5 (2), 140-150, 2022

2022

176

Potential of solid waste conversion into gelatin in the fisheries industry of Indonesia

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👨‍🔬 P Priyosetyoko, W Widayat, M Suzery, TW Agustini

📚 Indonesia Journal of Halal 5 (2), 112-139, 2022

2022

177

Mapping literature of reclaimed asphalt pavement using bibliometric analysis by VOSviewer

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👨‍🔬 M Qomaruddin, HA Lie, Widayat, BH Setiadji, MA Wibowo

📚 International Conference on Rehabilitation and Maintenance in Civil …, 2021

2021

178

Implementasi Jaminan Produk Halal Bagi Jaringan Pengusaha Muslim Indonesia dan Saudagar Muhammadiyah Kota Semarang

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👨‍🔬 H Hadiyanto, W Widayat, S Sulardjaka, AN Al-Baari

📚 Indonesia Journal of Halal 4 (2), 62-66, 2021

2021

179

Strategi Pengembangan Sektor Pertanian dalam Upaya Menjaga Ketahanan Pangan Nasional

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👨‍🔬 W Widayat

📚 Bestari, 246522, 2020

2020

180

Liquid fuel production from motorized vehicle tires with pirolysis process

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👨‍🔬 AA Arahim, Widayat, Hadiyanto

📚 AIP Conference Proceedings 2296 (1), 020004, 2020

2020

181

Kurdianto

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👨‍🔬 ATW Widayat, M Suzery, AN Al-Baarri, SR Putri

📚 Real Time-Polymerase Chain Reaction (RT-PCR) sebagai alat deteksi DNA babi …, 2019

2019

182

The characteristic of Thermoelectric Energy Generator module installed at the wall of the prime stove

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👨‍🔬 AM Zuhud, W Widayat, F Mochammad

📚 2019 International Conference on Technologies and Policies in Electric Power …, 2019

2019

183

The effect of KI and KIO3 impregnation on prepared hydroxyapatite catalyst on biodiesel production

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👨‍🔬 PWA Wardani, J Cahyonugroho, MPP Wibowo, Widayat

📚 AIP Conference Proceedings 2202 (1), 020055, 2019

2019

184

Increasing separation performance of pes' membrane via combination of polymer composition and uv irradiation for produced water treatment

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👨‍🔬 TD Kusworo, RA Anggita, TAD Setyorini

📚 ARPN Journal of Engineering and Applied Sciences 12 (1), 244-249, 2017

2017

185

The optimization process of biodiesel production using multiple feedstock (CPO and Jatropha) with assistance of ultrasound at 40 kHz

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👨‍🔬 B Fajar, Wilis, Widayat

📚 AIP Conference Proceedings 1737 (1), 060013, 2016

2016

186

Biofiksasi CO2 Oleh Mikroalga Chlamydomonas sp dalam Photobioreaktor Tubular

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👨‍🔬 H Hadiyanto, W Widayat

📚 Reaktor 15 (1), 37-42, 2015

2015

187

Regenerated silica gel as stationary phase on vacuum column chromatography to purify temulawak’s extracts

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👨‍🔬 B Cahyono, RD Maduwu, Widayat, M Suzery

📚 AIP Conference Proceedings 1699 (1), 060022, 2015

2015

188

Peningkatan Kualitas Dan Proses Pembuatan Biodiesel Dari Blending Minyak Kelapa Sawit (Palm Oil) Dan Minyak Kelapa (Coconut Oil) Dan Bantuan Gelombang Ultrasonik

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👨‍🔬 H Satriadi, F Nafiega, W Widayat, R Dipo

📚 Media Komunikasi Ilmu dan Profesi Bidang Kerekayasaan 35, 2014

2014

189

Optimization in Eugenol Production from Clove Oil with Saponification–Neutralization Process by using Response Surface Methods

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👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana

📚 Prosiding International Seminar on Chemical Engineering In conjunction with …, 2014

2014

190

Proses Reaksi Gliserol Dan Asam Benzoat Dengan Menggunakan Katalis Asam Sulfat

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👨‍🔬 EP Ari, W Anggra

📚 Jurnal Teknologi Kimia dan Industri 1 (1), 118-123, 2012

2012

191

Modelling The Behaviour Of Household’S Investment

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👨‍🔬 W Widayat, W Wahjoedi, M Syafiâ

📚 Economic Journal of Emerging Markets, 165-177, 2011

2011

192

Optimasi Proses Aktivasi Katalis Zeolit Alam Dengan Uji Proses Dehidrasi Etanol

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👨‍🔬 A Maygasari, A Happy Jestyssa, H Satriadi, W Widayat

2010

193

Kinetic study of the utilisation of different substrates to lactic acid using Lactobacillus delbrueckii

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👨‍🔬 A Abdullah, H bin Mat, W Widayat

📚 METANA 6 (01), 2005

2005

194

Hadiyanto and Sasongko SB 2015

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👨‍🔬 W Widayat, HN Aulia

📚 Journal of Engineering and Technological Sciences 47, 374-388, 0

195

W, Arifiani SN, Yaqin. N and A. N. Al Baarri.(2017). Study of utilization liquid smoke and carrageenan as a natural antibacterial in manufacturing beef meatballs

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👨‍🔬 W Widayat

📚 International Symposium on Food and Agro-biodiversity (ISFA). IOP Conferance …, 0

196

Application of Arthrospira platensis on ice cream and soft cheese with respect to their nutritional and sensory perspectives. J Teknol. 2016; 78: 4–2

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👨‍🔬 TW Agustini, W Ma’ruf, W Widayat, M Suzery

197

Revealing the environmental fate of ciprofloxacin in pharmaceutical effluent through UV/O3 degradation tracked by LC-MS/MS and assessed using a risk-based sustainability framework

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👨‍🔬 WZ Pratiwi, H Hadiyanto, W Widayat, A Darlan, Y Wahyono

📚 Kuwait Journal of Science, 100538, 2026

2026

198

Biodiesel production using simultaneous esterification-transesterification method from waste cooking oil with CaO/Fe2O3 bifunctional catalyst

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👨‍🔬 L Buchori, W Widayat, DD Anggoro, S Sulardjaka, A Aqiila, NR Putri

📚 Edelweiss Applied Science and Technology 9 (1), 779-791, 2025

2025

199

Correction: Evaluating the Environmental Impacts at the End Point Level of the Biodiesel Production Process from Multiple Feedstocks in Indonesia Through Life Cycle Assessment …

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👨‍🔬 Y Wahyono, H Hadiyanto, SH Gheewala, MA Budihardjo, JS Adiansyah, ...

📚 Waste and Biomass Valorization 15 (1), 523, 2024

2024

200

Enhancing the Public Participation in a Sustainable Biomass Project Using TPB for the Power Generation Industry in Java Island

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👨‍🔬 M Triani, A Nurfanani, IA Aditya, A Susanty, KI Cahyaningrum, W Widayat

📚 Procedia Computer Science 241, 258-265, 2024

2024

201

Preparation of Zirconia Catalyst from Zircon Sand and Catalytic Testing for Biodiesel Production

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👨‍🔬 W Widayat, DAA Salwa, A Hasanah, K Nisa, JMP Saudale

📚 Reaktor 24 (2), 36-40, 2024

2024

202

Peningkatan Hasil Belajar Siswa Kelas XII SMA Pada Materi Geometri Analitik dengan Menggunakan Model Discovery Learning

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👨‍🔬 AM VIVI, HR ABDUL, W WIDI

📚 Jurnal Pendidikan Matematika 1 (4), 2024

2024

203

Optimization of Mechanical Thermal Energy Audit At Pelabuhan Ratu Unit 2 With Pi Vision

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👨‍🔬 AR Yohanes, Widayat, J Windarta

📚 E3S Web of Conferences 519, 02004, 2024

2024

204

Pelaksanaan Erection Jembatan Pipa Pada Proyek Pembangunan Spam Regional Kartamantul Tahap II Kapasitas 300 L/Detik Provinsi Daerah Istimewa Yogyakarta

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👨‍🔬 S Noviyanto, A Sarminingsih, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 1 (7), 274-279, 2024

2024

205

Analisis Sistem Manajemen Mutu pada Proyek Pembangunan Rumah Tapak Jabatan Menteri di KIPP IKN

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👨‍🔬 S Sumiati, S Syafrudin, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 2 (2), 111-120, 2024

2024

206

Adaptation To Changes In Coal Quality: Case Study At PT Paiton Energi (PE)

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👨‍🔬 SJ Prakoso, W Widayat, SWA Suedy

📚 Eduvest-Journal of Universal Studies 4 (10), 8868-8878, 2024

2024

207

Effect of compaction pressure on shrinkage, density, and hardness of strontium hexaferrite

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👨‍🔬 RD Widodo, FB Darsono, DF Fitriyana, Rusiyanto, W Widayat, ...

📚 Journal of Physics: Conference Series 2900 (1), 012049, 2024

2024

208

Sensing performance analysis of mobile robot navigation based on depth camera and LiDAR

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👨‍🔬 H Afrisal, A Sofwan, W Widayat, RR Isnanto

📚 2023 International Conference on Computer Science, Information Technology …, 2023

2023

209

The effect of binder concentration on characteristic of pellet catalyst

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👨‍🔬 N Iskandar, S Sulardjaka, S Syaiful, W Widayat

📚 AIP Conference Proceedings 2667 (1), 080007, 2023

2023

210

The effect of solid waste clay bath pre-treatment on characteristic of CaCO3 product

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👨‍🔬 R Miravion, H Hadiyanto, L Buchori, W Widayat

📚 AIP Conference Proceedings 2667 (1), 040016, 2023

2023

211

Pengaruh Pengurangan Laju Alir Udara Proses pada Unit Secondary Reformer (103-D) terhadap Konsumsi Energi Pada Pabrik Amoniak Pupuk Kaltim 5

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👨‍🔬 FH Setyanto, PC Manapa, W Widayat

📚 Jurnal Energi Baru dan Terbarukan 3 (2), 154-172, 2022

2022

212

The Effect of NaHCO3 and Mg2+ Addition in Haematococcus pluvialis Cultivation by Carbon Injection Method

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👨‍🔬 W Widayat, AM Maharani, SNK Aroli, MH Hawari

📚 Journal of Bioresources and Environmental Sciences 1 (3), 75-83, 2022

2022

213

Vinasse as Cultivation Medium of Chlorella sp. to Produce Poly–Hydroxy Butyrate in Various Limited Low–Cost Primary Nutrient

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👨‍🔬 G Prima Indra Budianto, Y Mukti Wibowo, H Hadiyanto, W Widayat, ...

📚 E3S Web of Conferences 226, 00018, 2021

2021

214

Pelatihan Pembuatan Olahan Makanan Berbahan Baku Tepung Mocaf di Kec. Tembalang

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👨‍🔬 W Widayat, YL Rahmania, DH Wardhani, H Susanto, N Rokhati, ...

📚 Indonesia Journal of Halal 4 (1), 10-15, 2021

2021

215

Effect of liquid smoke and carrageenan to beef meatball texture and lightness

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👨‍🔬 W Widayat, N Afriani

📚 Indonesia Journal of Halal 4 (1), 32-39, 2021

2021

216

Antiplasmodial activity of Hyptis pectinata extract and its analogue against 3D7 Plasmodium falciparum through caseinolytic protease proteolytic (ClpP) inhibition:(TJPS-2021 …

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👨‍🔬 M Suzery, B Cahyono, ND Amalina, C Budiman, I Bayu, M Asy'ari, ...

📚 Thai Journal of Pharmaceutical Sciences (TJPS) 45 (6), 2021

2021

217

Akuntansi Aktiva Tetap Guna Mendukung Kewajaran Laporan Keuangan (Studi Kasus pada PT. Perkebunan Nusantara X PG. Ngadiredjo Kediri)

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👨‍🔬 SA Pamungkas

📚 Jurnal Ilmiah Cendekia Akuntansi 1 (2), 25-36, 2020

2020

218

Utilization of Tea Tree Branches as a Source of Thermal Energy

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👨‍🔬 R Firyanto, H Susanto, RSL Ambarwati, S Suherman, W Widayat

📚 Key Engineering Materials 849, 8-13, 2020

2020

219

Sertifikasi Halal dan Pendampingan Plemtasi Sistem Jaminan Halal Pada UKM Yebishu Snack

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👨‍🔬 M Suzery, B Cahyono, W Widayat, TW Agustini

📚 Seminar Nasional Pengabdian Kepada Masyarakat UNDIP 2020 1 (1), 2020

2020

220

Analisis kadar etanol dalam obat batuk dengan metode kromatografi cair

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👨‍🔬 AN Annisa, H Nuryadi, W Widayat, DA Sofiati

📚 Indonesia Journal of Halal 2 (1), 23-25, 2019

2019

221

Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production

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👨‍🔬 W Widayat, A Nuur Annisa, H Satriadi, S Syaiful

📚 MATEC Web of Conferences 156, 06013, 2018

2018

222

Pengembangan media pembelajaran kompetensi gambar potongan menggunakan video tutorial dan LKS

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👨‍🔬 MB Pambudi, W Widayat

📚 Jurnal Pendidikan Teknik Mesin 17 (2), 2017

2017

223

Pengaruh laju alir nitrogen pada metode starvasi nitrogen terhadap peningkatan kandungan lipid mikroalga Chlorella sp. sebagai bahan baku biodiesel

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👨‍🔬 FA Senjaya, D Sulistyanto, I Laira, MN Fatana, DB Pridiana, W Widayat

📚 Bioma: Jurnal Ilmiah Biologi 6 (2), 2017

2017

224

Effect of initial temperature and concentration of catalyst in polyeugenol production

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👨‍🔬 Widayat, A Fatuchrohman, E Gustiasih

📚 AIP Conference Proceedings 1699 (1), 040007, 2015

2015

225

Peningkatan Daya Tutup Cat Tembok Emulsi yang Memenuhi Standar SNI Karena Keluhan Konsumen di PT. XXX

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👨‍🔬 M Masyhad, W Widayat, I Riwayati

📚 Majalah Ilmiah Momentum 10 (2), 2014

2014

226

Proses Destilasi Vakum Pada Minyak Cengkeh Pada Tekanan Vakum: Simulasi Dan Eksperimen

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👨‍🔬 W Widayat, MH Haidar, B Cahyono, N Ngadiwiyana, L Nurdiana, ...

📚 Prosiding Seminar Nasional Rekayasa Kimia dan Proses 2013, 1-6, 2014

2014

227

The Effect of Ultrasonic Irradiation on Preparation Zeolite Catalyst from Natural Mineral

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👨‍🔬 W Widayat, H Susanto, H Satraidi

📚 Prosiding International Seminar on Chemical Engineering In conjunction with …, 2014

2014

228

Studi Awal Proses Pembuatan Glycerol Tribenzoat Dari Gliserol Dan Asam Benzoat Dengan Menggunakan Katalis Asam Klorida

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👨‍🔬 A Abdurrakhman, Y Rifianto, W Widayat

📚 Jurnal Teknologi Kimia dan Industri 2 (2), 30-36, 2013

2013

229

Studi Pengaruh Metode Pembuatan dan Sumber Bahan Baku pada Proses Produksi Katalis dari Zeolit Alam

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👨‍🔬 W Widayat, H Satriadi, A Roesyadi, HM Rachimoellah

📚 METANA 9 (01), 2013

2013

230

KARAKTERISTIK PEMBAKARAN BRIKET LIMBAH PENGOLAHAN KAYU SENGON (ALBAZIA FALCATARIA)

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👨‍🔬 DD Saputro, W Widayat, H Saptoadi, F Fauzun

📚 Sainteknol: Jurnal Sains dan Teknologi 11 (2), 2013

2013

231

Peningkatan Kesejahteraan Pengrajin Minyak Cengkeh Dengan Meningkatkan Kualitas Produk

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👨‍🔬 PA Handayani, WDP Rengga, W Widayat

📚 Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran 11 (1), 13-20, 2013

2013

232

Optimization Proses Produksi Biodiesel Berbantukan Gelombang Ultrasonik dengan Metode Central Composite Design

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👨‍🔬 W Widayat, H Hadiyanto, H Satriadi

📚 Prosiding Seminar Nasional Teknik Kimia Indonesia September 2012, 2012

2012

233

Pengaruh Temperatur Annealing Sambungan Las Smaw (Shielded Metal Arc Welding) Terhadap Sifat Mekanis Dan Fisis Baja K-945 EMS-45

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👨‍🔬 RY Prabowo, W Widayat

📚 JMEL: Journal of Mechanical Engineering Learning 1 (1), 2012

2012

234

Optimization of Initial pH and Total Sugar Concentration Variables on Citric Acid Production from Pineapple Waste with Aspergillus niger Yeast by Using Response Surface Methodology

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👨‍🔬 W Widayat, A Abdullah, H Satriadi, M Hadi

📚 Jurnal Rekayasa Kimia & Lingkungan 8 (1), 2011

2011

235

PERPINDAHAN MASSA GAS â€“CAIR DALAM PROSES FERMENTASI ASAM SITRAT DENGAN BIOREAKTOR BERGELEMBUNG

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👨‍🔬 W Widayat, A Abdullah, M Hadi

📚 Majalah Ilmiah Momentum 7 (2), 2011

2011

236

Peningkatan Sifat Mekanis Sekrap Aluminium dengan Degassing

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👨‍🔬 A Budiyono, W Widayat

📚 Profesional 8 (1), 2010

2010

237

Development of Heterogeneous Alkali Methoxide Catalyst from Fly Ash and Limestone

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👨‍🔬 W Widayat, M Christwardana, S Syaiful, H Satriadi, A Khaibar, MM Almaki

📚 Видавництво Львівської політехніки, 2010

2010

238

OPTIMASI PEMBUATAN DIETIL ETER DENGAN PROSES REAKTIF DISTILASI

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👨‍🔬 W Widayat, H Satriadi

📚 Reaktor 12 (1), 7-11, 0

239

Silica-rich Sodalite Synthesis: The Effect of Variations in Ultrasound Treatment and Hydrothermal Temperature

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👨‍🔬 S Sriatun, MCA Putri, HZ Urbach, A Darmawan, W Widayat, H Susanto

📚 Jurnal Kimia Sains dan Aplikasi 25 (4), 137-145, 0

240

Annisa AN 2017

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👨‍🔬 W Widayat

📚 Synthesis and Characterization of ZSM-5 Catalyst at Different Temperatures …, 0

241

Hydrothermal Synthesis and Characterization of Nitrogen-Doped Graphene from Puspa Wood Biomass

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👨‍🔬 MG Arrasyid, W Widayat, L Buchori

📚 Indonesian Journal of Chemistry, 2026

2026

242

Respons Morphotype Phaeodactylum tricornutum terhadap Cryopreservation

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👨‍🔬 PP Renta, W Widayat

📚 Journal of Marine Research 15 (1), 211-218, 2026

2026

243

Composite Curve Pada Teknologi Pinch

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👨‍🔬 W Widayat, OKM Fauzan, ANHM Manulang, E Salsabila, I Ratnawati, ...

📚 Jurnal Profesi Insinyur Indonesia 3 (3), 2026

2026

244

ANALISIS PENGARUH PERBANDINGAN ΔT TERHADAP OPTIMASI ENERGY DENGAN METODE PROBLEM TABLE

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👨‍🔬 W Widayat, AN Ihsan, MS Hazim, NL ES

📚 Jurnal Profesi Insinyur Indonesia 3 (4), 2026

2026

245

Strategi Penguatan Pasokan Bahan Baku Biomassa Berkelanjutan Melalui Budidaya Tanaman Energi: Analisis Biofisik dan Kelayakan Finansial

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👨‍🔬 I Irayani, W Widayat, E Kusdiantini, JW Hidayat

📚 ULIN: Jurnal Hutan Tropis 10 (1), 313-327, 2026

2026

246

Evaluasi Kuat Tekan Beton Eksisting Menggunakan Hammer Test

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👨‍🔬 MY Hasanudin, W Widayat, S Silviana

📚 Jurnal Profesi Insinyur Indonesia 3 (4), 283-287, 2026

2026

247

Environmental Impact Assessment of Biomass Co-Firing and Particulate Filtration Stability in a Remote-Area Stoker Coal Power Plant

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👨‍🔬 A Tonapa, W Widayat, S Silviana

📚 Journal of Bioresources and Environmental Sciences 5 (1), 51-58, 2026

2026

248

Mapping Research on Digital Transformation and University Image: A Scopus-Based Bibliometric Analysis

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👨‍🔬 R Baroroh, YM Cholily, DP Utomo, W Widayat, E Mayasari, M Azizah

📚 AL-ISHLAH: Jurnal Pendidikan 18 (1), 902-911, 2026

2026

249

Castor-Based Ester Oil Production Using SnCl2/HZSM-5 Catalyst for Sustainable Transformer

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👨‍🔬 W Widayat, J Philia, KGH Mangunkusumo, AS Alam

📚 Emerging Science Journal 10 (2), 714-728, 2026

2026

250

Integration of Energy Quality and Financial Feasibility in the Production of Oil Palm Frond Chips and Pellets

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👨‍🔬 Y Alamsah, W Widayat, SWA Suedy

📚 Jurnal IPTEK Bagi Masyarakat 5 (3), 688-698, 2026

2026

251

Chemically activated biochar derived from mangrove litter with enhanced CO2 adsorption capacity for carbon sequestration

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👨‍🔬 D Ariyanti, V Syifa, FD Hapsari, IN Widiasa, W Widayat, S Silviana, ...

📚 International Journal of Renewable Energy Development 15 (3), 474-485, 2026

2026

252

Methyl ester production from high free fatty acid content with Ce/Zeolite bifunctional catalyst

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👨‍🔬 ASN Syahidah, DP Wilujeng, W Widayat, H Hadiyanto, S Sulardjaka, ...

📚 International Journal of Renewable Energy Development 15 (3), 570-583, 2026

2026

253

Implementasi Program Keselamatan dan kesehatan Kerja di UPTK3L Universitas Diponegoro

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👨‍🔬 YA Pradana, S Sulardjaka, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 4 (1), 2026

2026

254

Calcium reduction of stingray (Himantura gerrardi) bones with EDTA disodium salt assisted ultrasound

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👨‍🔬 P Priyosetyoko, S Meiny, W Widayat

📚 E3S Web of Conferences 605, 03061, 2025

2025

255

PENERAPAN KIT PEMBELAJARAN PENGECORAN BENDA BERONGGA DI SMK

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👨‍🔬 W WIDI, M AHMAD, GG YAZID'AZZA, WW FAJAR, T BAYU

📚 JURNAL PENGABDIAN KEPADA MASYARAKAT Учредители: Politeknik Dharma Patria …, 2025

2025

256

Catalytic conversion of palm acid oil and bulk cooking oil to biodiesel using Fe/aluminosilicate

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👨‍🔬 W Widayat, RA Sumarno, YY Ananda, S Sulardjaka, J Philia

📚 International Journal of Innovative Research and Scientific Studies 8 (3), 12-29, 2025

2025

257

Castor Oil Derived Insulating Fluid Catalyzed with SnCl2/Zeolite Y

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👨‍🔬 W Widayat, J Philia, I Istiqomah, S Sriyono, KGH Mangunkusumo, ...

📚 E3S Web of Conferences 650, 01001, 2025

2025

258

Production of Liquid Fuel as an Alternative Energy Source from Reclaimed Asphalt Pavement (RAP) via Activated Natural Zeolite Catalyzed-Pyrolysis Process

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👨‍🔬 W Widayat, NPSM Dewi, RM Rahman, S Sulardjaka, S Sumardi, ...

📚 E3S Web of Conferences 655, 04002, 2025

2025

259

Study on Integration of Solar Power Generation in Hydroxyoxigen (HHO) Gas Production

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👨‍🔬 M Habibi, W Widayat, S Sulistyo, J Windarta

📚 E3S Web of Conferences 674, 04001, 2025

2025

260

Pelaksanaan Pekerjaan Sipil Pada Konstruksi Headrace Tunnel PLTA Jatigede 2x55 MW Chainage PT0+ 907,609–PT0+ 967,609

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👨‍🔬 AB Kermite, A Suprihanto, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 3 (1), 1-9, 2025

2025

261

Sistem Pembumian Pada Pembangkit Listrik Tenaga Surya (PLTS)

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👨‍🔬 BP Pandapotan, AC Kumoro, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 3 (1), 34-38, 2025

2025

262

ANALISIS EKONOMI DAN PENURUNAN EMISI KARBON PADA WEST KALIMANTAN POWER GRID STRENGTHENINGPROJECT

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👨‍🔬 KW Yuliani, W Widayat, H Razak

📚 Jurnal Profesi Insinyur Indonesia 3 (2), 2025

2025

263

Pengendalian Material Semen Untuk Mengendalikan Mutu Beton Site Mix Proyek Peningkatan Jaringan Irigasi Sub DI Wadaslintang Barat

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📚 Jurnal Profesi Insinyur Indonesia 3 (2), 2025

2025

264

WITHDRAWN: Study on integration of solar power generation in oxyhydrogen (HHO) gas production using compact water electrolyzer

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👨‍🔬 M Habibi, W Widayat, S Sulistyo, J Windarta

📚 F1000Research 14 (761), 761, 2025

2025

265

Balancing Relief Gas and Assist Gas Flows for Efficient Flare Gas Combustion in Onshore Gas Facility.

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👨‍🔬 M Christwardana, H Sugiarto, W Widayat

📚 ASEAN Journal of Chemical Engineering 25 (3), 2025

2025

266

Optimization of biodiesel production from candlenut oil via simultaneous reaction using a bifunctional CeO2. CaO catalyst

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👨‍🔬 W Widayat, H Hadiyanto, H Hargono, A Abdullah, MN Syalom, ...

📚 International Journal of Renewable Energy Development 14 (6), 1273-1284, 2025

2025

267

Photo-oxidative degradation of disposable mask and the effect on the biodegradation process in soil system

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👨‍🔬 A Khoironi, H Hadiyanto, I Dianratri, FA Joelyna, RA Baihaqi, WZ Pratiwi, ...

2025

268

PELATIHAN PEMBUATAN SILASE PAKAN TERNAK BAGI KELOMPOK TANI SEDYO MULYO, DESA DUKUH, KECAMATAN BAYAT, KLATEN

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👨‍🔬 HN FIRMANSYAH, W WIDAYAT, MHG SYAFEI

📚 PESARE: JURNAL PENGABDIAN SAINS DAN REKAYASA Учредители: LPPM Universitas …, 2024

2024

269

Teachers’ Perspectives on the Significance of Patentability for Innovative and Commercially Technological Works: A Study at SMKN 4 Semarang

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👨‍🔬 S Sunyoto, W Widayat, MBR Wijaya, D Wicaksono

📚 5th Vocational Education International Conference (VEIC-5 2023), 266-279, 2024

2024

270

Cultivation of Spirulina sp with various nutrients through the carbon trapping method

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👨‍🔬 Widayat, Hadiyanto, Wahyudi, J Philia, H Rahayu, YL Rahmania

📚 AIP Conference Proceedings 2838 (1), 020021, 2024

2024

271

Experimental Investigation of by-Product Hydrogen Gas in the Harvesting Process of Dunaliella salina using a Non-Sacrificial Cathode

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👨‍🔬 P Purwono, H Hadiyanto, M Christwardana, W Widayat, MA Budihardjo

📚 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan 21 …, 2024

2024

272

Extraction of oxalic acid from porang tuber by mechanical separation method

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👨‍🔬 H Satriadi, W Widayat, AG Sianturi, MI Alfareza

📚 Journal of Bioresources and Environmental Sciences 3 (1), 45-52, 2024

2024

273

Development Village Tour Based on Technopreneurship in Kendal Regency

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👨‍🔬 DD Saputro, M Rahayuningsih, M Margunani, B Bunyamin, W Widayat, ...

📚 Jurnal Abdimas 28 (1), 101-108, 2024

2024

274

Strategi Peningkatan Kesadaran Keselamatan dan Keamanan Pelayaran Serta Pengenalan Sumber Daya Energi Terbarukan Pada Masyarakat Nelayan Sebagai Wujud Penerapan Profesionalisme …

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👨‍🔬 T Purnomo, A Seno, H Hadiyanto, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 1 (7), 242-249, 2024

2024

275

Perancangan Water Cooled Scroll Chiller R290 dengan Kapasitas 20 TR menggunakan Software CoolPack

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👨‍🔬 BFT Kiono, SB Prakoso, W Widayat, M Djaeni

📚 Jurnal Profesi Insinyur Indonesia 2 (2), 79-83, 2024

2024

276

Analisis Keterlambatan Proyek pada Pembangunan Pondasi Reduction Kiln Line 3 Sebuku Kalimantan Selatan

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👨‍🔬 MI Setiadi, W Widayat, YA Priastiwi

📚 Jurnal Profesi Insinyur Indonesia 2 (2), 84-90, 2024

2024

277

Evaluasi Waktu Pekerjaan Bored Pile dengan Lean Construction Metode Last Planner System pada Proyek RSWS Makassar

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👨‍🔬 N Sekarningtyas, YA Priastiwi, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 2 (3), 136-140, 2024

2024

278

Studi Pengaruh Biomassa Bahan Bakar Jumputan Padat (BBJP) pada Proses Co-firing di PLTU

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👨‍🔬 MZADE ARTA, W WIDAYAT, M MUCHAMMAD

📚 ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik …, 2024

2024

279

Potensi Pengembangan Pembangkit Listrik Tenaga Biomassa (PLTBm) di Kawasan Transmigrasi Ponu dalam Rangka Mendukung Pengembangan Kawasan Strategis Nasional (PKSN) Perbatasan

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👨‍🔬 E Melati, S Silviana, W Widayat

📚 Jurnal Profesi Insinyur Indonesia 2 (6), 396-401, 2024

2024

280

Design of the Electronic Report Sheet Model for Field Work Practices to Improve the Competence of Superior and Competitive Vocational Education Graduates

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👨‍🔬 MBR Wijaya, S Sunyoto, W Widayat, T Santosa, YS Wicaksana, ...

📚 Proceedings of Vocational Engineering International Conference 5, 356-365, 2023

2023

281

Modification of SiO2/Fe2O3 catalyst from rice husk ash and iron sand for biodiesel production: A review

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👨‍🔬 W Widayat, L Subianto, SN Alfina, S Wahyuni, FA Nurushofa

📚 AIP Conference Proceedings 2667 (1), 080002, 2023

2023

282

Pemanfaatan Limbah Claybath Pabrik Kelapa Sawit sebagai Katalis dalam Produksi Biodiesel

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👨‍🔬 R Miravion, W Widayat

📚 Jurnal Ilmu Lingkungan 21 (2), 449-452, 2023

2023

283

Effect of calcination on mechanical strength characteristics of pellet catalysts from Bandung natural zeolite materials

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👨‍🔬 N Iskandar, GF Romadlon, Sulardjaka, Syaiful, Widayat

📚 3rd Borobudur International Symposium on Science and Technology 2021 2706 (1 …, 2023

2023

284

Characteristics of mechanical strength on pellet catalysts from Bandung natural zeolite material due to the influence of variations in mesh size

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👨‍🔬 N Iskandar, S Al-Kareem, Sulardjaka, Syaiful, Widayat

📚 3rd Borobudur International Symposium on Science and Technology 2021 2706 (1 …, 2023

2023

285

Effect of nutrition and initial pH on the growth of Spirulina sp with direct injection method

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👨‍🔬 W Widayat, H Hadiyanto, W Wahyudi, J Philia, H Rahayu, YL Rahmania

📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023

2023

286

The estimation of the waste heat recovery in prime cookstove by using thermoelectric generators

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👨‍🔬 W Widayat, AM Zuhud, F Mochammad

📚 THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND …, 2023

2023

287

Analisis Struktur Bangunan Apartemen 10 lantai Menggunakan Software SANSPRO V. 5.20

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👨‍🔬 MC Simanjuntak, W Widayat, A Syakur

📚 Jurnal Profesi Insinyur Indonesia 1 (5), 167-178, 2023

2023

288

Optimization heat integration of preliminary plant design of styrene monomer into polystyrene

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👨‍🔬 RA Febriansyar, NU Azizah, Widayat

📚 AIP Conference Proceedings 2453 (1), 020078, 2022

2022

289

PEMASANGAN PIPA HDPE PADA PENYAMBUNGAN PIPA IRIGASI DENGAN METODE BUTT FUSION

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👨‍🔬 D Syafrizal, W Widayat, S Darsono

📚 Jurnal Profesi Insinyur Indonesia 1 (1), 18-23, 2022

2022

290

Encapsulation of hyptolide coated alginate, chitosan, and alginate-chitosan

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👨‍🔬 M Suzery, B Cahyono, Widayat, L Apriliana

📚 AIP Conference Proceedings 2553 (1), 020004, 2022

2022

291

Penerapan mesin pengering pada industri kecil tepung mocaf

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👨‍🔬 W Widayat, W Wahyudi, K Karnowo, O Paramita, MH Shidiq, W Adi, ...

📚 Prosiding Seminar Nasional Hasil Pengabdian Kepada Masyarakat Universitas …, 2022

2022

292

Pengaruh Variasi Kecepatan Sirkulasi Udara Terhadap Laju Pengeringan Kayu Pada Dapur Pengering Kayu

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👨‍🔬 K Karnowo, DH Al Janan, W Widayat

📚 Jurnal Inovasi Mesin 3 (2), 29-34, 2021

2021

293

Efisiensi Energi dan Reduksi Harga Total Produksi Hidrogen pada Siklus Sulfur-Iodine Seksi III Skala Pilot Menggunakan Analisis Pinch

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👨‍🔬 SH Raharjo, I Winaningsih, W Widayat

📚 TEKNIK 41 (1), 48-54, 2020

2020

294

Single-step purification of peroxidase enzyme from Horseradish (Raphanus sativus L.)

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👨‍🔬 FP Lestari, AN Al-Baarri, Widayat, AM Legowo

📚 AIP Conference Proceedings 2197 (1), 080002, 2020

2020

295

Efek Aerasi terhadap Perubahan Residu H2O2 Air Fermentasi Mocaf (Modified Cassava Flour)

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👨‍🔬 N Yaqin, AN Al-Baarri, MA Budihardjo, W Widayat

📚 Jurnal Aplikasi Teknologi Pangan 9 (1), 38-43, 2020

2020

296

Pelatihan Pembuatan Pola dan Cetakan Pasir untuk Guru SMK

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👨‍🔬 W Widayat, S Maulana, A Septiyanto, RF Naryanto

📚 Seminar Nasional Pengabdian Kepada Masyarakat UNDIP 2020 1 (1), 2020

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297

Legal Liability of Automatic Instrument Results in Environmental Laboratory Analysis

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👨‍🔬 Y Luluk Rahmania, W Widayat, P Person Renta

📚 E3S Web of Conferences 202, 05011, 2020

2020

298

ANALISIS PEMANFAATAN PANAS SISA DARI KOMPOR BIOMASSA UNTUK PEMBANGKITAN LISTRIK BERBASIS TERMOELEKTRIK

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📚 School of Postgraduate, 2019

2019

299

ANALISIS KEBUTUHAN ENERGI PADA PROSES PRODUKSI BAHAN BAKAR DARI LIMBAH POLYETHYLENE DAN BIAYA PROSES PRODUKSINYA

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📚 School of Postgraduate, 2019

2019

300

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📚 School of Postgraduate, 2019

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301

BIODIESEL: Proses, Karakteristik, dan Implementasi

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👨‍🔬 W Widayat, K Sunandar, IS Purwaningsih

📚 Graha Ilmu, 2019

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302

Synthesis of Methyl Tertiary Glycerol Ether (MTGE) from glycerol and Tertiary Butyl Alcohol (TBA)

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👨‍🔬 W Widayat, I Sulistyaningtiyas, D Agnestya, DA Sofiati

📚 IOP Conference Series: Earth and Environmental Science 248 (1), 012021, 2019

2019

303

MENINGKATKAN MOTIVASI DAN HASIL BELAJAR KIMIA PADA POKOK BAHASAN LARUTAN ASAM DAN BASA MENGGUNAKAN MULTI METODE PADA SISWA KELAS XI IPA 1 SMA NEGERI 1 KEDIRI SEMESTER GENAP …

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📚 LENTERA: Jurnal Pendidikan dan Pengajaran 9 (4), 9-19, 2019

2019

304

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📚 Sukaesih, 2018

2018

305

Extraction of oil and antioxidant from rice bran (Oryza sativa) using co-solvent and ultrasound irradiation

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📚 Ponte 73 (9), 382-391, 2017

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306

EXTRACTION OF OIL AND ANTIOXIDANT FROM RICE BRAN (ORYZA SATIVA) USING COSOLVENT AND ULTRASOUND IRRADIATION

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📚 PONTE International Journal of Science and Research 73 (9), 2017

2017

307

MIMIO TEACHUNTUK PEMBELAJARAN TEORI DAN PRAKTIK DI JURUSAN TEKNIK MESIN UNNES

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📚 Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran 14 (1), 67-74, 2016

2016

308

Analisis Kelayakan USAhatani Nanas (Ananas Comosus Merr) di Desa Siwarak, Kecamatan Karangreja, Kabupaten Purbalingga (Studi Kasus pada Kelompok Tani Barokah)

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📚 Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto, 2016

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309

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📚 Reaktor 18 (2), 2016

2016

310

UJI KARAKTERISTIK PADA PREPARASI KATALIS Zn/ZEOLIT

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📚 Prosiding Sains Nasional dan Teknologi 1 (1), 2015

2015

311

Pengembangan Sistem Penelusuran Alumni (Tracer Study) Berbasis Teknologi Informasi Dan Komunikasi

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📚 proceedingfptk 440, 2015

2015

312

OPTIMASI TRANSESTERIFIKASI BIODIESEL MENGGUNAKAN CAMPURAN MINYAK KELAPA SAWIT DAN MINYAK JARAK DENGAN TEKNIK ULTRASONIK PADA FREKUENSI 28 kHZ

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👨‍🔬 B Fajar TK, B Wahyudi H, W Widayat

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313

Optimization process of tribenzoine production as a glycerol derived product

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📚 AIP Conference Proceedings 1699 (1), 060023, 2015

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314

PROSES EKSTRAKSI MINYAK DARI LIMBAH PADAT BIJI KARET BERBANTU GELOMBANG MIKRO

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📚 Majalah Ilmiah Momentum 10 (1), 2014

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315

Improvement of clove oil quality by using adsorption-distillation process

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👨‍🔬 W Widayat, B Cahyono, H Hadiyanto, N Ngadiwiyana

📚 Peer Review dll, 2014

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316

Triacetate production process from glycerol using sulfuric acid as catalyst

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👨‍🔬 W Widayat, H Satriadi, A Abdullah, IWK Handono

📚 Jurnal Teknik Kimia Indonesia 11 (4), 192-198, 2013

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317

DIVERSIFIKASI MINYAK CENGKEH MENJADI FINE CHEMICAL

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👨‍🔬 W Widayat, H Hadiyanto, B Cahyono, N Ngadiwiyana

📚 Prosiding Seminar Nasional Rekayasa Kimia dan Proses 2013, 2013

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Biodiesel Production From Rubber Seeds (Hevea brasiliensis) with In Situ and Acid Catalyst Method by Using Ultrasonic Assisted

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👨‍🔬 W Widayat, MS Samseno, LA Wiguna, ADK Wibowo

📚 Proceeding International Seminar on Biorenewable Resources Utilization for …, 2013

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319

Ultrasound Assisted Biodiesel Production from Rubberseed Oil

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👨‍🔬 H Hady, W Widayat, F Berkah

2012

320

The Effect of Plasticizer on Mechanical Properties and Chemical Structure of Chitosan-Starch Film Composites

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📚 Department of Chemical Engineering Institut Teknologi Sepuluh Nopember (ITS …, 2012

2012

321

Studi Pengaruh Ukuran Dan Konsentrasi Tepung Jagung Pada Proses Produksi Etanol Grade Bahan Bakar Dengan Proses Adsorpsi

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👨‍🔬 W Widayat, M Muhaimin, R Saputra, I Perdana

📚 Prosiding Seminar Nasional Teknik Kimia April 2012 ISSN, 2012

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322

Optimization Process Of Biodiesel Production With Ultrasound Assisted By Using Central Composite Design Methods

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📚 Proceeding 19th Regional Symposium on Chemical Engineering (RSCE 2012), 1-6, 2012

2012

323

PERANCANGAN DAN PEMBUATAN PROGRAM PENGAMBIL DAN PENYIMPAN DATA DARI PLC PADA SISTEM ROBOT RECORD AND REPLAY

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📚 JMEL: Journal of Mechanical Engineering Learning 1 (1), 2012

2012

324

PEMAHAMAN SISTEM BAHAN BAKAR KONVENSIONAL MENGGUNAKAN MEDIA ANIMASI DI SMK YOSEF CEPU

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👨‍🔬 HR Ramadhian, W Widayat

📚 Automotive Science and Education Journal 1 (1), 2012

2012

325

Simulasi Kinetika Reaksi Transesterifikasi Minyak Goreng Bekas Berbantukan Radiasi Ultrasonik

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👨‍🔬 H Nuâ, SB Sasongko

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326

Study on Production Process of Biodiesel from Rubber Seed (Hevea Brasiliensis) by In Situ (Trans) esterification Method.

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📚 International Review of Mechanical Engineering 6 (7), 1601, 2012

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The Effect of Temperature and Ethanol Concentration on Diethyl Ether Production by Using Adsorption--Dehydration Process.

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📚 International Review of Chemical Engineering-Rapid Communications 3 (1), 87, 2011

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328

Proses Ekstraksi Minyak Dari Mikroalga Jenis Chlorella sp Berbantukan Ultrasonik

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👨‍🔬 W Widayat, H Hadiyanto, H Satriadi, A Wati, SA Motto

📚 Prosiding Seminar Nasional Fundamental dan Aplikasi Teknik Kimia 2011, 2011

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PRODUCTION OF BIODIESEL BY ULTRASOUND ASSISTED ESTERIFICATION OF RUBBERSEED OIL

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📚 Faculty of Engineering, 2010

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330

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📚 Proceeding of International Drying Symposium, Magdeburg, Germany 3 (6), 1605-11, 2010

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331

RANCANG BANGUN ALAT PEMISAHAN BUM EMAS SECARA GRAVITASI PADA PERTAMBANGAN RAKYAT DI WONOGIRI JAWA TENGAH

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📚 FAKULTAS TEKNIK, 2009

2009

332

RANCANG BANGUN PENGERING SEBAGAI UPAYA MEMPERBAIKI KUALITAS TEH BUNGA ROSELA PADA ASPETRI (Asosiasi Pengobat Tradisional Ramuan Indonesia) CABANG SEMARANG

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📚 FAKULTAS TEKNIK, 2009

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333

Peningkatan Produktifitas Etanol oleh Sacharomyces cereviseae dengan Operasi Tekanan Vakum

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👨‍🔬 A Abdullah, W Widayat

📚 Fakultas Teknik UNDIP, 2009

2009

334

RANCANG BANGUN ALAT PENGGILING PADA PRODUKSI KERUPUK LEGENDARIKARAK SEBAGAI USAHA UNTUK MENINGKATKAN KAPASITAS DAN KUALITAS PRODUK

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📚 FAKULTAS TEKNIK, 2009

2009

335

RANCANG BANGUN ALAT PENGRAJANG KARAK DAN PERBAIKAN PROSES UNTUK MENINGKATKAN KUALITAS PRODUK

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📚 Majalah INFO 11 (1), 19-26, 2009

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336

Proses Produksi DiEtil Eter dengan Dehidrasi Etanol pada Fase Cair

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337

PENGARUH KONSENTRASI KAPANG DAN LAJU ALIR VOLUMETRIK UDARA TERHADAP PROSES FERMENTASI ASAM SITRAT DARI LIMBAH PADAT BUAH NANAS

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📚 Majalah Ilmiah Momentum 3 (2), 2007

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338

PEMBUATAN DIETHIL ETER DARI ETANOL TEKNIS DENCAN PROSES REAKTIF DISTILASI

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📚 FAKULTAS TEKNIK, 2005

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339

PENINGIKATAN KUALITAS MINYAK GORENG BEKAS MELALUI PROSES ADSORBSI DENGAN ADSORBENT ZEOLIT

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📚 FAKULTAS TEKNIK, 2005

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340

JUDUL KEGIATANPENINGKATAN EFISIENSI PENGUSAHA KRUPUK GORENGMELALUI REUSE MINYAK GORENG BEKASMENGGUNAKAN ZEOLIT AKTIFUpaya Peningkatan Pendapatan IJKM Di Kabupaten Boyolali

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341

Pembuatan Asam Sitrat dari Buangan Padat Buah Nanas dengan Fermentasi Fase Cair dalam Bioreaktor Bergelembung

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📚 FAKULTAS TEKNIK, 2005

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342

PEMBUATAN ASAM SITRAT DARI TETES TEBU DENGAN PROSES FERMENTASI FASE CAIR

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📚 FAKULTAS TEKNIK, 2004

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343

SINTESA BARAN BAKAR MDROKARBON DAM MINYAK GORENG BEKAS MELAUI PROSES SAPONIFIKASI DILANJUTKAN THERMAL-CRACKING

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📚 FAKULTAS TEKNIK, 2004

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344

HIDRODINAMIKA REAKTOR AIR-LIFT RECTANGULAR UNTUK FLUIDA NON-NEWTONIAN

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👨‍🔬 W Widayat, S Suherman

📚 FAKULTAS TEKNIK, 2003

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345

PENGOLAHAN AIR KANDUNGAN ORGANIK TERLARUT TINGGI DENGAN KOMBINAS1 TEKNOLOGI MEMBRAN DAN FLOKULASI: Studi Kasus di Kabupaten Kendal

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PENGARUH VISKOSITAS DAN LAJU ALIR TERHADAP HIDRODINAMIKA DAN PERPINDAHAN MASSA DALAM PROSES PRODUKSI ASAM SITRAT DENGAN BIOREAKTOR AIR-LIFT DAN KAPANG Aspergilus Niger

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KINETIKA REAKSI PADA PROSES PRODUKSI DIETIL ETER DARI ETANOL DENGAN KATALIS H-ZEOLIT

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👨‍🔬 W Widayat, A Roesyadi, M Rachimoellah

📚 Reaktor 14 (2), 101-108, 0

350

Pengaruh Jenis Katalis Pada Proses Produksi DiEtil Eter dengan Reaktor Fixed Bed

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👨‍🔬 AR Widayat, M Rachimoellah

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📚 Optimasi Proses Adsorbsi Minyak Goreng Bekas dengan Adsorbent Zeolit Alam …, 0

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📚 Koefisien Perpindahan Massa Gas-Cair pada Fluida Non Newtonian dalam Reaktor …, 0

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354

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357

H., Yuariski O. & Murwono, D

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📚 Biodiesel Production from Bulk Frying Oil with Ultrasound Assisted, 1732-1739, 0

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Kinetic Study of Kapok Seed Oil Esterification using BMIM-PF6 Catalyst

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📚 Reaktor 20 (3), 138-149, 0

360

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📚 Improving The Quality of Education to Face The Impact of Technology, 0

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Kinetic Study for Biodiesel Production from Rubberseeds (Hevea brasiliensis) by In situ Esterification method

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362

Optimization Process of Biodiesel Production From Nyamplung Seed (Calophyllum inophyllum L) Using In Situ Process and Ultrasonic Assisted

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👨‍🔬 W Widayat, A Abdullah, KO Paradita, EM Tunga Dewi

📚 Proceeding of ICCME 2012, 1-9, 0

363

Bagian Belakang Reaktor No. 17 No. 1 Maret 2017

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📚 Reaktor 17 (1), 0

364

Front Mattter Vol 18 No. 1 March 2018

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📚 Reaktor 18 (1), 0

365

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📚 Reaktor 16 (3), 0

366

Front Matter Reaktor Vol 16 No. 1 Maret 2016

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📚 Reaktor 16 (1), 0

367

Front Matter Reaktor Vol 17 No. 3 September 2017

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📚 Reaktor 17 (3), 0

368

Back Matter Vol 17 No. 04 December 2017

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👨‍🔬 W Widayat

📚 Reaktor 17 (4), 0

369

Front Matter Reaktor Vol 15 No. 4 Oktober 2015

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👨‍🔬 W Widayat

📚 Reaktor 15 (4), 0

370

Front Matter Reaktor Vol 16 No. 2 Juni 2016

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👨‍🔬 W Widayat

📚 Reaktor 16 (2), 0

371

Back Matter Vol 18 No. 01 March 2018

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👨‍🔬 W Widayat

📚 Reaktor 18 (1), 0

372

Back Matter Reaktor Vol 16 No. 1 Maret 2016

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👨‍🔬 W Widayat

📚 Reaktor 16 (1), 0

373

Back Matter Reaktor No. 17 No. 3 September 2017

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👨‍🔬 W Widayat

📚 Reaktor 17 (3), 0

374

Bagian belakang Vol 16 No. 3 September 2016

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👨‍🔬 W Widayat

📚 Reaktor 16 (3), 0

375

Back Matter Reaktor Vol 16 No. 2 Jun i 2016

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👨‍🔬 W Widayat

📚 Reaktor 16 (2), 0

376

Back Matter Reaktor Vol 15 No. 4 Oktober 2015

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👨‍🔬 W Widayat

📚 Reaktor 15 (4), 0

377

Bagian Belakang Reaktor Vol 16 No 4 2016

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👨‍🔬 W Widayat

📚 Reaktor 16 (4), 0

378

Bagian Belakang Reaktor Vol 17 No. 2 Juni 2017

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📚 Reaktor 17 (2), 0

379

Одержання гетерогенного лужного метоксидного каталізатора із зольного пилу та вапняку

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👨‍🔬 W Widayat, M Christwardana, S Syaiful, H Satriadi, A Khaibar, MM Almaki

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Treatment of Natural Rubber Wastewater using Photoactive Nanocomposite Membrane PSf/sulfonated ZnO: Performance Evaluation, HAZOP, and Risk Analysis

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📚 Waste Technology 10 (2), 35-49, 0

381

PENGEMBANGAN MATA KULIAH KEWIRAUSAHAAN DALAM BIDANG PANGAN BERBASIS LABORATORIUM

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📚 Prosiding Seminar Nasional Integrasi Kebijakan dan Penguatan Industri …, 0

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Reposisi Budaya dalam Mewujudkan Sustainabilitas Pembangunan Ekonomi Bangsa

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📚 Bestari, 244794, 0

383

Biodiesel Production from Pao-Bulk Using Fe/Zeolite Catalyst by Wet Impregnation Method

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PEMASARAN BATIK SECARA ONLINE DI DESA TRUSMI WETAN

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👨‍🔬 ATRIO ASTRIYAH, N MEIDIANA, RA ADAWIYAH, W WIDAYAT

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MODEL IMPLEMENTASI BANK DESAIN BAGI PRODUK INDUSTRI KERAJINAN LOGAM (METAL HANDICRAFT) DI JAWA TENGAH

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Unnes Science Education Journal

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👨‍🔬 W Widayat, SS Kasmui

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Adian Khoironi 1✉ Email adian. khoironi@ dsn. dinus. ac. id Hadiyanto Hadiyanto 2, 3 Inggar Dianratri 2 Falvocha Alifsmara Joelyna 2 Rifqi Ahmad Baihaqi 2

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Pengaruh Konsentrasi Umpan Dan Temperatur Awal Pada Reaksi Transesterifikasi Biodiesel Berbantukan Ultrasonik Dari Minyak Goreng Secara Kontinu

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👨‍🔬 N Aulia, W Widayat, S Budi Sasongko

📚 Peer Review dll, 0

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