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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Elemen INTEK: Jurnal Penelitian Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Polinema Kepada Masyarakat Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Teknik Ilmu dan Aplikasi Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Jurnal Polimesin Jurnal Pengabdian Kepada Masyarakat Venus: Jurnal Publikasi Rumpun Ilmu Teknik Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Journal of Evrimata: Engineering and Physics
Haris Puspito Buwono
Jurusan Teknik Mesin, Politeknik Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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DESAIN DAN PEMBUATAN TULISAN IDENTITAS GEDUNG BERHURUF 3 DIMENSI DARI STAINLESS STEEL Syamsul Hadi; Mochamad Muzaki; Bambang Irawan; Purwoko Purwoko; Haris Puspito Buwono; Anggit Murdani
Jurnal Pengabdian kepada Masyarakat Vol. 11 No. 1 (2024): JURNAL PENGABDIAN KEPADA MASYARAKAT 2024
Publisher : P3M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/abdimas.v11i1.5254

Abstract

This community service aims to increase clarity and beauty for all guests who head to the hall in RW 06 Kelurahan Tasikmadu Malang. The method used is deliberation with residents and building managers to determine the design/technique of the construction model for the posts to be installed in the Hall, making posts from stainless steel in the form of plates (stainless steel) and installing stainless steel letters on the west side of the outer wall of the Hall, assessing the robustness and the beauty of the placement, and submission to the Head of RW 06 where the installation of the writing is in his working area. By installing stainless steel letters in the Hall, it is hoped that identity can be made clear to all guests or all parties who pass in front of it. Thus there is a synergy between State Polytechnic of Malang and community members in obtaining satisfaction of the usefulness of assistance and the beauty of the environment in RW 06 Tasikmadu, Lowokwaru, Malang city.
PENDAMPINGAN PENGOLAHAN LIMBAH CAIR ZAT WARNA ALAMI BATIK PADA CV ULUR WIJI MUDA BERDAYA KABUPATEN MOJOKERTO Susanto Susanto; Haris Puspito Buwono; Luchis Rubianto; Windi Zamrudy; Dwina Moentamaria; Mutia Devi Hidayati; Agus Jalaluddin
Jurnal Pengabdian kepada Masyarakat Vol. 12 No. 2 (2025): JURNAL PENGABDIAN KEPADA MASYARAKAT 2025
Publisher : P3M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/abdimas.v12i2.8816

Abstract

In Kemlagi District, Mojokerto Regency, a small and medium-sized batik enterprise, CV Ulur Wiji Muda Berdaya, has gained popularity among millennials due to its use of natural dyes that are environmentally friendly. The products have not only attracted domestic consumers but have also reached international markets. Despite this achievement, the enterprise continues to face a major challenge in managing batik dye wastewater, which has not received optimal treatment. To solve this issue, a community service program was implemented to provide technical assistance in wastewater treatment through training on filtration adsorption methods for the employees of CV Ulur Wiji. The filtration unit employed adsorption media consisting of foam filters, zeolite, activated carbon, coral stone, and Malang sand. The questionnaire results confirm that the partner has improved the application of wastewater treatment technology as a result of the program. The results of batik waste processing indicated an improvement in the waste quality, changing from a turbid color to a clearer appearance, with an initial pH of 6.3; after undergoing filtration-adsorption, the pH shifted to near neutral at 6.9. Furthermore, an additional outcome of this program is the successful development of an appropriate technology system for treating wastewater from batik dye using filtration–adsorption techniques.
Enhancement of thermal stability and corrosion resistance of palm oil lubricants using nonylphenol and polyethylene glycol additives Haris Puspito Buwono; Aquilla Elka Ananda Kirana
Jurnal Polimesin Vol 24, No 1 (2026): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i1.7454

Abstract

Palm oil offers advantages as a lubricant due to its eco-friendliness, renewability, high viscosity index, good boundary lubrication properties, and compatibility with additives. However, palm oil is not very resistant to high-temperature changes, which limit its application in vehicle lubricants. This research aims to overcome the weaknesses of palm oil as a vehicle lubricant by adding Nonylphenol and Polyethylene Glycol surfactants at varying concentrations and evaluate thermal stability, engine operating temperature, and corrosion resistance.  The quantitative experiments were conducted with palm oil blend of nonylphenol surfactant and polyethylene glycol. Formulations containing 2.5%, 5%, and 7.5% surfactant concentrations were evaluated through oven-based thermal stability testing and copper strip corrosion testing according to ASTM D4048 to determine the sulfur content in lubricating oils. From the test results, palm oil-based lubricant blends containing Nonylphenol (2.5% and 5%) and Polyethylene Glycol (PEG) (2.5% and 5%) showed a corrosion classification value of 1a, the best rating in the ASTM Copper Strip Corrosion Standard. The best engine temperature test was palm-oil-based with 5% Nonylphenol.
Effect of Increased Molecular Force Attraction of NiO (Nickel Oxide) on the Kinetic and Potential Energy of H2O Molecules for Efficient H2O Splitting into H2 Gas Achmad Walid; Haris Puspito Buwono; Lisa Agustryana; Nurhadi Nurhadi
Journal of Evrímata: Engineering and Physics Vol. 02 No. 01, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.33

Abstract

Nickel oxide (NiO) is a material used due to its remarkable chemical stability, magnetic properties, and electrical characteristics molecules. One notable feature of NiO is its unreactive surface with water (H2O), making it an ideal candidate for use as a cathode in the electrolysis process to produce hydrogen (H2) gas. During electrolyte process, H2 is produced through the oxidation reaction at the anode and the reduction reaction at the cathode. Despite its potential, the detailed mechanism of H2O molecule decomposition using a NiO electrode remains inadequately explained. This research aims to elucidate the increased energy arising from the attractive forces between NiO and H2O molecules. To investigate these attractive forces, simulations were conducted to understand the chemical characteristics of the molecules, including bond lengths, bond angles, and their properties. The results indicated that the use of NiO electrode could increase the potential and kinetic energy of H2O molecules. This energy increase is attributed to the formation of specific polar and non-polar bonds. Specifically, polar bonds were formed between (1) the nickel (Ni) atom in NiO molecules and the oxygen (O) atom in the H2O molecules and (2) the O atom in NiO molecules and the H atom in the H2O molecules. Non-polar bonds were formed between (1) the H atom in the H2O molecules and the Ni atom in NiO molecules, and (2) the O atom in NiO molecules and the O atom in H2O molecules. This study highlights how these interactions help in the electrolysis process by enabling the efficient breakdown of water molecules and the production of hydrogen gas
Co-Authors Abdul Chalim, Abdul Agus Dani Agus Jalaluddin Akhlis Rizza, Muhammad Alfianto Alfianto Amrullah, Ustman Syah Amrullah, Utsman Syah Anggit Murdani Aquilla Elka Ananda Kirana Ariani Ariani Asrori Asrori Ayu Sulasari Bambang Irawan Bambang Irawan Deny Arisandi Diana Rachmawati Dimas Vrisnanda Yulio Diva Prakasa Dzaky Darma Saputra Eko Yudiyanto Elfin Lailatun Nur'aini Elka Faisal Etik Puspitasari, Etik Fadhilah, Alfira Insani Fatkhur Rohman Iswara, Mochammad Agung Indra Jalaluddin, Agus Kris Witono Lisa Agustriyana Lisa Agustryana Luchis Rubianto Marta, Akbar Andika Mochamad Muzaki Mochammad Agung Indra Iswara Mochammad Muzaki Mohammad Noor Hidayat Muhammad Muzakki Muhammad Rifqi Aditya Irawan Mutia Devi Hidayati Nike Nur Farida Nurchajat Nurchajat, Nurchajat nurhadi nurhadi Nurlia Pramita Sari Pipit Wahyu Nugroho Pondi Udianto Profiyanti Hermien Suharti Purwoko Purwoko Purwoko R N Akhsanu Takwim Raka Galang Rustio Wardoyo Ratih Indri Hapsari Riyanto Heri Nugroho RIZKY ARDIANSYAH Rucita Ramadhana Samsul Hadi Sandra Santosa Sarjiyana Sarjiyana Satworo Adiwidodo Sembiring, Rinawati Subagiyo Subagiyo Sulistyono Sulistyono Susanto Susanto Susanto Susanto Syamsul Hadi Syamsul Hadi Syamsul Hadi Ustman Syah Amrullah Walid, Achmad Weddakarti, Eva Windi Zamrudy