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All Journal Jurnal Teknik Mesin International Journal of Renewable Energy Development Niagawan Bulletin of Electrical Engineering and Informatics Jurnal Kelautan : Indonesian Journal of Marine Science and Technology KURVA S JURNAL MAHASISWA Rekayasa Mesin Journal of Engineering and Management in Industrial System Jurnal Pembangunan dan Alam Lestari Business UHO: Jurnal Administrasi Bisnis Jurnal IUS (Kajian Hukum dan Keadilan) Journal of Accounting Science JMBI UNSRAT (Jurnal Ilmiah Manajemen Bisnis dan Inovasi Universitas Sam Ratulangi) Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System SENTRALISASI JMKSP (Jurnal Manajemen, Kepemimpinan, dan Supervisi Pendidikan) Unnes Journal of Public Health Jurnal Review Pendidikan dan Pengajaran (JRPP) Abdi Dosen : Jurnal Pengabdian Pada Masyarakat JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Jurnal Ilmiah Akuntansi Kesatuan Hikmah International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Asean Journal of Science and Engineering (AJSE) Jurnal Keuangan dan Perbankan(KEBAN) Jurnal Abdi Mandala Hexatech: Jurnal Ilmiah Teknik Innovative: Journal Of Social Science Research Jurnal Ilmiah Pangan Halal International Journal of Renewable Energy Development Jurnal Penelitian Pendidikan Indonesia Policy Brief Pertanian, Kelautan, dan Biosains Tropika Journal of Fisheries & Marine Journal of Transportation and Society Empowerment
Slamet Wahyudi
Universitas Brawijaya
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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ANALYSIS OF ENERGY SERVICE QUALITY USING KANO MODEL TOWARDS INDONESIA'S EMISSION-FREE 2060 Fanani, Angga Akbar; Wahyudi, Slamet; Kusumaningdyah, Widha; Rahmani, Rizkianuri; Aryanti, Sabrina Putri; Safitri, Eka Rachmadhani; Sapriadi; Wijaya, Salsabila Sulthanah Putri
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 13 No. 2 (2025)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Electricity is a basic necessity in daily life. The 3.55% increase in electricity distribution to Indonesian households has driven people to seek alternative clean energy sources, considering that the majority of energy comes from fossil fuels with high carbon emissions. The government-owned electric power provider has begun to face high levels of complaints, prompting a review of service quality by Law No. 20 of 2002. This study employs a questionnaire method, processed using the Kano model, to analyze the performance of service quality variables provided by a government-owned electric power provider. Based on the Kano analysis, three categories of attributes need to be considered to improve customer satisfaction: One-Dimensional (must be prioritized), Attractive (needs to be maintained), and Indifferent (less attention needed). The one dimensional attributes involve power quality, output stability, service satisfaction, responsiveness during disturbances, service usage costs, and frequency of power disturbances. The better and worse assessments indicate that output stability, electricity costs, and responsiveness during disturbances have a significant impact on increasing customer satisfaction, while their inadequacy in these attributes can lead to a significant decrease in satisfaction.
PERBAIKAN FASILITAS KERJA MEMBATIK DENGAN PENDEKATAN ERGONOMI UNTUK MENGURANGI MUSCULOSKELETAL DISORDERS Sanjaya, Krishna Tri; Wahyudi, Slamet; Soenoko, Rudy
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 1 No. 1 (2013)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2013.001.01.7

Abstract

Small and middle enterprises  have been the important part of the economic of a nation or a local. Karang Write-Batik is one industrial center which is located at Karang Village, Semanding Subdistrict, Tuban District. Early observation shows that various processes within the production of Write-Batik are conducted without considering ergonomic aspects, such as work method and work facility. It may result in complaint and even muscle injury which is called Musculoskeletal Disorders (MSD’s) Many pronlem of pain perceived by workers are caused by less ergonomic work position or work posture. It may also be evident because the less correspondence between work equipment and workers’ anthropometry size. To measure workers’ musculoskeletal injured, the author uses Standard Nordic Questionnaire (SNQ) and to assess work posture, Quick Exposure Check (QEC) is used. The reduction of workers’ musculoskeletal injuredt can be realized by improving work facility based on workers’ anthropometry size. Result of early measurement of exposure level of several parts of body indicates that the exposure level of the back is 26, while that of the arm is 30, that of the hand wrist is 26, and that of the neck is 16. After the improvement of work facility, workers’ complaint is reduced and so is exposure level. The exposure level with the improved work facility is shown as follows: the exposure level of the back is 22, while that of the arm is 22, that of the hand wrist is 22 and that of the neck is 14.
APLIKASI METODE OBJECTIVE MATRIX DAN RESPONSE SURFACE METHODOLOGY UNTUK PENINGKATAN PRODUKTIVITAS Hadi, Yuswono; Wahyudi, Slamet; Sugiono, Sugiono
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 2 No. 1 (2014)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2014.002.01.4

Abstract

Continous improvements to increase productivity is compulsory for small medium enterprise. The average value of productivity observed with Objective Matrix, in January-September 2014, is 261 . The main factorwhich affect the value of productivity is the number of defective products produced by Automatic Feeding and Sealing Machine.Approximately, 73.7% of total defective products is leak product. Thus, the main effortto increase value of  productivity is reduce the amount of leak products produced by those macine. After calculating the average value of productivity, design of experiment were performed using central composite design approach. Then measure optimum value for each independent variables using Response Surface Methodology. The optimal values are : Cup Type A ( supplied by PT.Indopack ) , the heater I’s temperature is 256.9 °C and the heater II’s temperature is 258.48 oC . with predicted number of leaked product is 0.86 . By using this setting , the value of productivity turned to 855, far above the average of the previous months.
PERANCANGAN FASILITAS KERJA PROSES PENGELASAN YANG ERGONOMIS (Studi Kasus pada Bengkel PT Aji Batara Perkasa) Tuhumena, Ronny; Soenoko, Rudy; Wahyudi, Slamet
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 2 No. 2 (2014)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2014.002.02.8

Abstract

There are many small industryy that manufacture parts and accessories two-wheeled. Production process of parts and accessories has been done in the welding process. Welding is a common method used to connect the metal permanently. The results of observation on welding process identify there are many problems faced by operators of welding process. Welding facilities are not ergonomic and resulted in complaints of the welding operator. Results of nbm questionnaire given to operators welding showed that there are many complaints from operators. To solve the problems, this paper propose repairing on a working position and design work facilities that match with the anthropometry operators and then propose the additional aids ( jigs and a fixture ) for operators.
Premixed Combustion of Kapok (ceiba pentandra) seed oil on Perforated Burner I.K.G. Wirawan; I.N.G. Wardana; Rudy Soenoko; Slamet Wahyudi
International Journal of Renewable Energy Development Vol 3, No 2 (2014): July 2014
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.3.2.91-97

Abstract

Availability of fossil fuels in the world decrease gradually due to excessive fuel exploitation. This situations push researcher to look for alternative fuels as a source of renewable energy, one of them is kapok (ceiba pentandra) seed oil. The aim this study was to know the behavior of laminar burning velocity, secondary Bunsen flame with open tip, cellular and triple flame. Premixed combustion of kapok seed oil was studied experimentally on perforated burner with equivalence ratio (φ) varied from 0.30 until 1.07. The results showed that combustion of glycerol requires a large amount of air so that laminar burning velocity (SL) is the highest at very lean mixture (φ =0.36) in the form of individual Bunsen flame on each of the perforated plate hole.  Perforated and secondary Bunsen flame both reached maximum SL similar with that of ethanol and higher than that of hexadecane. Slight increase of φ decreases drastically SL of perforated and secondary Bunsen flame. When the mixture was enriched, secondary Bunsen and perforated flame disappears, and then the flame becomes Bunsen flame with open tip and triple flame (φ = 0.62 to 1.07). Flame was getting stable until the mixture above the stoichiometry. Being isolated from ambient air, the SL of perforated flame, as well as secondary Bunsen flame, becomes equal with non-isolated flame. This shows the decreasing trend of laminar burning velocity while φ is increasing. When the mixture was enriched island (φ = 0.44 to 0.48) and petal (φ = 0.53 to 0.62) cellular flame take place. Flame becomes more unstable when the mixture was changed toward stoichiometry.
Premixed Combustion of Coconut Oil on Perforated Burner I.K.G. Wirawan; I.N.G. Wardana; Rudy Soenoko; Slamet Wahyudi
International Journal of Renewable Energy Development Vol 2, No 3 (2013): October 2013
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2.3.133-139

Abstract

Coconut oil premixed combustion behavior has been studied experimentally on perforated burner with equivalence ratio (φ) varied from very lean until very rich. The results showed that burning of glycerol needs large number of air so that the laminar burning velocity (SL) is the highest at very lean mixture and the flame is in the form of individual Bunsen flame on each of the perforated plate hole. As φ is increased the  SL decreases and the secondary Bunsen flame with open tip occurs from φ =0.54 at the downstream of perforated flame. The perforated flame disappears at φ = 0.66 while the secondary Bunsen flame still exist with SL increases following that of hexadecane flame trend and then extinct when the equivalence ratio reaches one or more. Surrounding ambient air intervention makes SL decreases, shifts lower flammability limit into richer mixture, and performs triple and cellular flames. The glycerol diffusion flame radiation burned fatty acids that perform cellular islands on perforated hole.  Without glycerol, laminar flame velocity becomes higher and more stable as perforated flame at higher φ. At rich mixture the Bunsen flame becomes unstable and performs petal cellular around the cone flame front. 
DESIGN OF SMART URBAN FARMING BASED ON THE INTERNET OF THINGS USING RASPBERRY PI 4 TO SUPPORT THE REALIZATION OF FOOD SELF-SUFFICIENCY Lustyana, Astuteryanti Tri; Wahyudi, Slamet; Fanani, Angga Akbar
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 14 No. 1 (2026): In Process
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Urban agriculture could be a response to limited land availability, access to food, and increasing need for local food production in highly populated cities. However, rooftop farming is subject to temperature differences, water limits, and limited operator supervision and needs constant monitoring. In this study, a pilot-scale smart urban farming system comprising a rooftop greenhouse, water recycling mechanism, drip irrigation, Raspberry Pi 4-based sensing and control, Firebase cloud database and Django online interface was constructed and evaluated. The system was put on the roof of Universitas Brawijaya, Industrial Engineering Building. Functional testing, sensor-to-cloud transmission, dashboard verification, and irrigation discharge measurements were used for performance evaluation. During a 24-h test with a sampling interval of 5 s, 15,443 of the 17,280 predicted records were successfully received, resulting to an upload success rate of 89.37%, a missing-data rate of 10.63% and an average interval of 5.59 s. Some 50,000 recordings were processed over the five-day monitoring period of the greenhouse. A five minute pump operation delivered roughly 32 mL per dripper, i.e. 0.1067 mL/s and the reaction delay between the first and the last dripper was between 20 and 26 seconds. The results indicate that the system can provide real-time monitoring and simple automation for small rooftop gardening.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Madjid Achmad Noerkhaerin Putra Achmad Wibolo Aditya Wahyu Pratama Adrian Maidangkay Adriani Sunuddin Agung Sugeng Widodo Agus Indarto Ahmad Yani Al Manar, Primadika Ali Muntaha Amin Setyo Leksono Andik Isdianto Andy Nugraha Angga Akbar Fanani, Angga Akbar Anggraini, Dahlia Tri Anindito Purnowidodo Arifiana, Zahra Arifin, Ichwan Arimurti, Trias Aris Kurniawan Aryanti, Sabrina Putri Aulanni’am Aulanni’am Awaluddin Awaluddin Azamataufiq Budiprasojo Azis, Alsha Mariska Bambang Dwi Argo Bambang Semedi Bayanullah, Muhammad Bohra, Arunkumar Breliastiti, Ririn Budha Maryanti Budi, Arif Setyo Budiono Budiono Denny Widhiyanuriyawan Denny Widyanuriyawan Dewi, Citra Satrya Utama Dharmanto, Asep Dhimas Nur Cahyadi Djaddang, Syahril Djoko Sutikno Dwi Irawan Eko Siswanto Ena Marlina Ervizal AMZU Eva Herianti Femiana Gapsari MF Fitriansyah, Erwin Fuad, Ainul Gatot Ciptadi Hagus Tarno Herandarudewi, Sekar Mira Hidayati, Nafisah Arina I.K.G. Wirawan I.N.G. Wardana I.N.G. Wardana Ilahi, Anugerah ishak usman Jameelah, Mariyam Janitra Naufal Faza Krishna Tri Sanjaya Krishna Tri Sanjaya Kusumo, Herma Nugroho rono adi Lilis Yuliati Lukman, Hendro Lustyana, Astuteryanti Tri Mahendra, Kiemas Aji Andika Manar, Primadhika Al Marali, Aryati Muhaymin Mariki, I Wayan Wawan Marjono, Marjono Marundha, Amor Mochammad Junus Moh. Khusaini Muhamad Bula Muhammad Arif Muhammad Azmi, Muhammad Muluk, Adrian Nafisah Arina Hidayati Noorsakti Wahyudi Nora, Liza Nugraha, Arif Yunizar Nur Robbi Nurcahali, Fani Nuri Andarwulan Nurkholis Hamidi Nursaman, Dede Pratikto Pratikto Pratikto, Pratikto Pribadi, Moch Fadlal Islamay Purnami Purnami Purnomo Budi Santoso Quraisya, Denas Rahmad Rahmad Rahmani, Rizkianuri Randy Kuswanto Raviko, Johansyah Richard Pietersz Romels C. A. Lumintang Ronny Tuhumena Ronny Tuhumena Rosy Hutami Rudiatin, Endang Rudy Soenoko Rudy Soenoko Rudy Soenoko Rusdi Rusdiana Rusdiana S Soemarno Sabaruddin Sabaruddin Saddam, Muhammad Sadia , Nur Khalimatus Safitri, Eka Rachmadhani Sahri Muhammad Sapan, Yustina sapanli, kastana Sapriadi Semi, Hijar Septiani, Bunga Siswahyudianto Sonief, Ahmad As'ad SUBEKTI, FAJAR Sudarno Sudarno Sudarno, Sudarno Sudjito Soeparman Sugiarto S Sugiono Sugiono Sugiono Sugiono Suheni Suheni Sukamto, Ika Sumiyarsi Sukandar Sukandar Sulhendri Sunoko, Rudy Tanjung, Juita Vega Fonsula Andromeda Wahyono Suprapto Wiadnya , Dewa Gede Raka Widha Kusumaningdyah Widya Wijayanti Wijaya, Salsabila Sulthanah Putri Winarto Winarto Yao, Jiafeng Yustian Bella Yuswono Hadi Zuhud, Ervizal A. M.