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All Journal Rotasi Rekayasa Mesin LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Turbo : Jurnal Program Studi Teknik Mesin JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Fisika : Fisika Sains dan Aplikasinya ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Pengabdian Vokasi Jurnal Teknologi Jurnal Ilmiah Fakultas Sains dan Teknik Universitas Nusa Cendana Jurnal Lembaga Pengabdian Kepada Masyarakat Undana
Defmit B.N. Riwu
Program Studi Teknik Mesin, Fakultas Sains Dan Teknik Universitas Nusa Cendana
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PELATIHAN MANAJEMEN KESEHATAN DAN KESELAMATAN KERJA (K3) DI PUSKESMAS OESAPA Adi Yermia Tobe; Rima Nindia Selan; Jefri S Bale; Daud Pulo Mangesa; Arifin Sanusi; Defmit B.N. Riwu; Jack C.A. Pah
Jurnal Pengabdian Vokasi Vol 4, No 1 (2025): Juni 2025
Publisher : Sekolah Vokasi Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpv.2025.24948

Abstract

Community Health Centers are the front guard in providing health services to the community, where the government has designated them as First Level Health Facilities (Level 1 Health Facilities) which are the reference for obtaining health insurance at the next level (Hospital).  Therefore, community health centers must provide the best services and complete education, so that the goals of public health can be achieved.   Occupational Health and Safety is an important element in protecting ourselves both from the service provider side (employees/staff) and from the service recipient side (patients/community).  Occupational Health and Safety itself consists of several elements that must be understood, including: Occupational Diseases, Personal Protective Equipment, Psychology and Ergonomics, Comfort (Noise and Vibration), Dangers (Mechanical and Electrical) and ultimately can be intertwined in the Safety Management System and Occupational Health.  All of these things have not been fully realized and applied in everyday life, even in health facilities. With this activity, it is hoped that the implementation of good Occupational Health and Safety will automatically increase the health figures of the community itself. 
ANALISIS BAHAN BAKAR MINYAK HASIL PIROLISIS SAMPAH PLASTIK JENIS PP (POLYPROPYLENE )TERHADAP KARAKTERISTIK MINYAK YANG DIHASILKAN Muhammad Hasby Ashsidiq; Dominggus G. H. Adoe; Defmit B.N. Riwu; Dantje A. T. Sina; Almido H, Ginting; Samy Y. Doo
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 12 No 02 (2025): Oktober 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v12i02.17278

Abstract

This research aims to determine the density and viscosity of oil resulting from pyrolysis of plastic waste and to find out the relationship between density and viscosity of the pyrolysis oil produced. This research was carried out using polypropylene (PP) plastic, with the reactor used being a single reactor with the reactor temperature set at 200c and 250c. The results of the research show that the density is 0.751 – 0.773 kg/l, the viscosity is 0.574822548 – 0.841376288 cPs, where during the research carried out density and viscosity have an interrelated relationship. Changes in pyrolysis temperature can significantly affect the viscosity and density of pyrolysis oil, besides that, different research times and materials can influence the results of the pyrolysis process.
The MINI REVIEW: PREPARASI BIOETANOL BERBASIS MAKROALGA Clara Indriani Solle; Defmit B.N. Riwu; Yantus Neolaka
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 12 No 01 (2025): April 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v12i01.18077

Abstract

In the face of serious impacts of greenhouse gas emissions and dependence on fossil fuels, biofuels especially bioethanol are emerging as a promising alternative. This article highlights the potential of macroalgae as bioethanol feedstock due to its advantages of abundant availability, rapid growth and high carbohydrate content. The bioethanol production process from macroalgae includes pretreatment, hydrolysis, fermentation and distillation stages. Pre treatment aims to increase the accessibility of cellulose, hydrolysis converts cellulose into glucose which is then fermented into bioethanol by microorganisms such as Saccharomyces cerevisiae. Macroalgae shows very high bioethanol yield compared to other feedstocks making it a sustainable option that does not compete with food production. Bioethanol from macroalgae can be used as transportation fuel, feedstock for chemical industry as well as fuel additive. The use of bioethanol contributes to the reduction of dependence on fossil fuels and supports a more sustainable industry.
Co-Authors Abolladaka, Jacob Adi Yermia Tobe Almido H, Ginting Arifin Sanusi Baitanu, Rivanto Baria, Metrisno Ben V. Tarigan Ben Vasco Tarigan Clara Indriani Solle Dantje A. T. Sina Daud P. Mangesa Daud P. Mangesa Daud P. Mangesa Daud Pulo Mangesa Dominggus Godlief Heryson Adoe Eflinda Milo Erich Maliwemu, Erich Erich U.K. Maliwemu fallo, Gideon Gusnawati Gusnawati Husein, Fuaddin B. I.N.G. Wardana Jack C. A. Pah Jack C.A Pah Jack C.A. Pah Jack C.A. Pah Jack Carol Adolf Pah Jack Carol Adolf Pah Jack Pah Jahirwan Ut Jasron Jefri S Bale Kyven G. Hoke Liba Lilis Yuliati Mangesa, Daud P. Margaretha Kewa Unarajan Marten E. Manane Matheos Marc Tuka Penu Matheus M. Dwinanto Melvani E. D. Tana Muhamad Jafri Muhammad Hasby Ashsidiq Muhammad Julfikar Nahak, Jufrianus Aven Naitboho, Asriel Pah, Jack C. A. Pah, Jack C.A. Pah, Jack Carol Adolf Priyono Priyono Punuf, Rolandi Raju, Efremsus Sugianto Reinaldy Weo Rima Nindia Selan Robin Diyener Takain Rohi, Jemssy Ronald Samy Y. Doo Seprianus Rudolf Membubu Siagian, Saut Ronny Tuah Simplisius Fridolin Akoit Sonbaifeto, Dodi Alfredo Suprianto Siagian Talo, Piter Tarigan, Ben V. Tobe, Adi Yermia Verdy A Koehuan Verdy A. Koehuan Vinsen Yuminto Bifel Wagimin Wagimin Wenseslaus Bunganaen Yantus Neolaka Yoffial D. Banani Yohanes V. Gere