Article Per Year (5 Year)
p-Index From 2021 - 2026
1.978
P-Index
This Author published in this journals
All Journal Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi DEVOTE: Jurnal Pengabdian Masyarakat Global Jurnal Foundry Jurnal Teknik Mesin Jurnal Alat Berat Essence: Teaching English as a Foreign Language, Linguistics, and Literature Journal
Setiyo Rojikin
Politeknik Negeri Malang
Arts Humanities Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Public Health Social Sciences Veterinary Other

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
PENGARUH VARIASI FRAKSI VOLUM SERAT TANDAN KOSONG KELAPA SAWIT DAN SERAT AMPAS TEBU TERHADAP KEKUATAN TARIK KOMPOSIT HYBRID BERMATRIK POLYESTER Fajar Paundra; Khairul Imad; Abdul Muhyi; Opi Sumardi; Setiyo Rojikin
JURNAL FOUNDRY Vol. 5 No. 1 (2022): JURNAL FOUNDRY
Publisher : LPPM Politeknik Manufaktur Ceper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62944/jf.v5i1.48

Abstract

Composite is a combination of two or more different materials that are combined with the aim of getting better strength from the constituent materials. This study aims to identify the effect of variations in fiber volume fraction and determine the proportion of the best volume fraction based on the tensile and flexural strength values in hybrid composites reinforced with EFB fiber and bagasse fiber. The composite manufacturing process was carried out using the compression molding method with variations in fiber volume fraction 6:14, 8:12, 10:10, 12:8 and 14:6. The tests carried out were density testing (ASTM C271) and tensile strength (ASTM D3039 ). The highest tensile strength test results were obtained at fiber volume fraction 8:12 with a value of 17.39 Mpa.
Increasing the productivity of MSMEs processing herbal medicine with appropriate technology for choppers and grinders Riswan Eko Wahyu Susanto; Ahmad Dony Mutiara Bahtiar; Yohan Bakhtiar; Miftakhul Huda; Setiyo Rojikin
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 8, No 4 (2023): November 2023
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v8i4.11600

Abstract

 Indonesian society has traditional healing methods that involve a variety of uses of plants, animal products, and minerals. Medicinal plants have been used and mixed well by various ethnic groups of Indonesian society as herbal medicine. Wahyu Alam Foundation MSMEs located in the city of Kediri, are farmers and herbal plant entrepreneurs who have problems. The Wahyu Alam Foundation MSME as a community service partner has problems related to processing herbal plants with the process still being manual, so they need help to make the production process easier. The results of this service activity include a visible increase in productivity, previously Manual production in two stages after direct chopping, and grinding, took 20 minutes per kg and 20 kg of product was obtained in a day, resulting in a faster time of 10 minutes per kg, while the product yield increased to 40 kg per day. Based on data obtained by MSMEs Herbal Medicine, the predicted increase in profits was at an average of 18%, while the average increase in rupiah was 3.222 million. This increase was due to the optimal use of machines, along with increased marketing due to the increasing demand for herbal medicine on the market. 
ANALISIS KEKERASAN MAKRO PADA REL KERETA API TANJUNG KARANG TIPE R54 Kenedi, Akmal Afif; Paundra, Fajar; Pujiyuliyanto, Eko; Muhyi, Abdul; Syaukani, Muhammad; Rojikin, Setiyo; Kurniawan, Yudi
JURNAL FOUNDRY Vol. 7 No. 2 (2024): JURNAL FOUNDRY
Publisher : LPPM Politeknik Manufaktur Ceper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62944/jf.v7i2.112

Abstract

Mikrostrukur sangat berpengaruh terhadap karakteristik material. Penelitian ini dilakukan dengan tujuan untuk mengetahui tingkat kekerasan makro pada kepala rel kereta api tipe R54 yang digunakan di tanjung karang. Pengujain yang dilakukan meliputi pengujian kekerasan dengan menggunkan metode vickers dengan menggunakan Universal Hardness Tester. Hasil pengujian kekersan pada bagian kepala yang rel yang dilakukan dengan tiga kali pengujian dimana dua pengujian dilakukan pada spesimen A dan satu pengujian dilakukan di spesimen B. pengujian pada spesimen A yang diambil secara vertikal memiliki nilai rata-rata 347,31 HVN dan pengujian yang diambil secara horizontal memiliki nilai rata-rata 354,077 HVN. Sementara pengujian yang dilakukan pada spesimen B yang berupa potongan dari bagian kepala rel memiliki nilai kekerasan rata-rata 362,60 HVN.
Analisis Pengaruh Boost Pressure After Cooler Terhadap Performance Engine MTU 16V4000 Kurniawan, Yudi; Arwin; Amin, Mohamad; Paundara, Fajar; Rojikin, Setiyo
JURNAL ALAT BERAT Vol 1 No 2 (2024): Juli 2024
Publisher : Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jab.v1i2.26

Abstract

Perkembangan teknologi  semakin cepat, kebutuhan energi semakin meningkat, dan  bahan baku  semakin langka sehingga menyebabkan kenaikan harga. Untuk mengatasi krisis permintaan energi yang semakin meningkat, diperlukan alternatif lain untuk memenuhi kebutuhan energi. Salah satunya dengan mengganti sumber energi  lama dengan sumber energi lain seperti batu bara. Unit dump truck khususnya EH 4500 digunakan untuk mengangkut material baik  berupa tanah maupun batubara menuju disposal.  EH 4500 menggunakan mesin MTU 16V4000kk33. Perawatan rutin dilakukan pada mesin MTU 16V4000 untuk menjaga kondisi performa engine. Pemeliharaan yang dilakukan selain pemeliharaan adalah overhaul dan reuse. Studi juga dilakukan untuk memastikan efektivitas menggunakan metode literatur dan manual engine MTU 16V4000 sebagai dasar penelitian. Penelitian menunjukkan bahwa kinerja maksimum dicapai dengan  beban maksimum. Engine dengan  CAC baru menghasilkan tenaga 2020 kW pada beban 100%, sedangkan mesin dengan CAC re-use menghasilkan tenaga 1983 kW pada beban 100%.
Increasing the Productivity of Fried Shallot "Emak" Kediri MSMEs with Appropriate Technology and Business Management Assistance Riswan Eko Wahyu Susanto; Agus Dani; Yohan Bahtiar; Miftakhul Huda; Setiyo Rojikin
PaKMas: Jurnal Pengabdian Kepada Masyarakat Vol 5 No 2 (2025): November 2025
Publisher : Yayasan Pendidikan Penelitian Pengabdian Algero

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54259/pakmas.v5i2.6162

Abstract

The grand harvest of shallots is a time when almost all shallot farmers harvest simultaneously, resulting in an abundant supply of shallots and a plentiful supply of fried shallot ingredients at low prices. In contrast, during the lean season, shallot prices become expensive, leading to inflation (price fluctuations of shallots). This has a direct impact on the ‘Emak’ Fried Shallots MSMEs located in Kediri Regency. Another problem faced by partners is that the production process is carried out using small-capacity machines, and premium fried shallots are produced manually, so the production process requires a lot of labour, time and production costs. With the implementation of PKM and the application of Appropriate Technology (red onion/shallot slicing machine), it is hoped that the production process can be accelerated and the output of MSMEs increased. The tangible results have been delivered in the form of two Appropriate Technology machines to MSME partners, for the production of premium and Grade A/B/C fried shallots, with a production increase of 10 minutes per kg and a daily production of 40 kg. Based on data from the Fried Shallots MSMEs, the average profit increase over three months reached 118.04% (equivalent to 14.36 million rupiah). The highest profit increase was achieved in September 2024, reaching 125% (equivalent to 15.9 million rupiah). The lowest value in October 2024 reached 80.51% (equivalent to 12.26 million rupiah). This difference in value was mainly due to the fluctuating price of shallots as a raw material and market demand, which increased when prices fell and decreased when the price of fried shallots rose, thereby affecting the profits of MSMEs.
ANALISIS KEKERASAN MAKRO PADA REL KERETA API TANJUNG KARANG TIPE R54 Akmal Afif Kenedi; Fajar Paundra; Eko Pujiyuliyanto; Abdul Muhyi; Muhammad Syaukani; Setiyo Rojikin; Yudi Kurniawan
Journal Foundry Vol. 7 No. 2 (2024): Jurnal Foundry Politeknik Manufaktur Ceper
Publisher : Journal Foundry

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Mikrostrukur sangat berpengaruh terhadap karakteristik material. Penelitian ini dilakukan dengan tujuan untuk mengetahui tingkat kekerasan makro pada kepala rel kereta api tipe R54 yang digunakan di tanjung karang. Pengujain yang dilakukan meliputi pengujian kekerasan dengan menggunkan metode vickers dengan menggunakan Universal Hardness Tester. Hasil pengujian kekersan pada bagian kepala yang rel yang dilakukan dengan tiga kali pengujian dimana dua pengujian dilakukan pada spesimen A dan satu pengujian dilakukan di spesimen B. pengujian pada spesimen A yang diambil secara vertikal memiliki nilai rata-rata 347,31 HVN dan pengujian yang diambil secara horizontal memiliki nilai rata-rata 354,077 HVN. Sementara pengujian yang dilakukan pada spesimen B yang berupa potongan dari bagian kepala rel memiliki nilai kekerasan rata-rata 362,60 HVN.
A Morphosyntactic and Lexical Error Analysis in English SOP Writing on Welding Procedures by Mechanical Engineering Students Ahsin Fahmi Mubarok; Setiyo Rojikin; Mochammad Abdullah Salim
Essence: Journal of English Language Teaching, Linguistics, and Literature Vol. 3 No. 1 (2026): April 2026
Publisher : Universitas Islam Tribakti Lirboyo Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33367/essence.v3i1.8780

Abstract

This research examines the most common morphological and lexical errors in English Standard Operating Procedures (SOPs) for welding machines authored by Indonesian mechanical engineering students. Using a descriptive qualitative method, ten student-generated SOPs on Shielded Metal Arc Welding (SMAW) were analyzed. The study found that most errors arose from negative transfer from Indonesian, a language with minimal obligatory inflectional and derivational morphology. The top three morphological mistakes were the omission of the adverbial suffix -ly (8 occurrences), the omission of the plural -s (6 occurrences), and the omission of nominal suffixes (6 occurrences). Lexical errors were also prevalent, particularly inaccurate collocations (e.g., do welding instead of perform welding) and incorrect phrasal verbs, reflecting a tendency to translate literally rather than use established English technical expressions. These errors undermine the clarity, precision, and safety essential for effective SOPs. The results suggest the need for focused instructional strategies that contrast English morphological and idiomatic conventions with Indonesian to enhance students’ accuracy in technical English writing.
ANALISIS KARAKTER MIKROSTRUKTUR PERMUKAAN DAN TENSILE SS304 PADA PENGELASAN SMAW DENGAN ARUS 85 AMPERE: ANALYSIS OF MICROSTRUCTURE AND TENSILE PROPERTIES OF SS304 UNDER SMAW WELDING AT 85 AMPERE Hanif Ridhwanul Majid; Moch Wisnu Arif Sektiono,S.Si., M.Si.; Setiyo Rojikin, S.T., M.T.
Jurnal Teknik Mesin Vol. 5 No. 1 (2026): JURNAL TEKNIK MESIN
Publisher : Mechanical Engineering Department Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/j-meeg.v5i1.8600

Abstract

This study aims to analyze the crystal structure changes on Stainless Steel 304 (SS304) metal surface welded using Shielded Metal Arc Welding (SMAW) method at 85 Ampere current. SS304 material with specific thickness was welded using Nikko Steel NSN-308 electrode with 2.6 mm diameter. Tensile test specimens were prepared according to ASTM E8 standard with single V groove joint design (60° angle, 2 mm gap). Tensile testing results showed average Ultimate Tensile Strength (UTS) of 589.35 MPa, and Yield Strength (YS) of 354.48 MPa. Metallographic analysis using optical microscope identified three distinct zones: base metal with uniform polygonal δ-ferrite and γ-austenitee grain structure, Heat Affected Zone (HAZ) with grain enlargement and partial recrystallization, and weld metal with dendritic structure due to cooling. process. The research results indicate that SMAW welding process at 85 Ampere causes significant microstructural changes, where γ-austenitee crystal structure stability and grain size and shape variations become the main factors affecting material mechanical properties.
PENERAPAN TEKNOLOGI DAN DIGITAL MARKETING PADA UMKM BRIKETKU ARANG BATOK KELAPA GUNA PENINGKATAN PRODUKTIVITAS USAHA Riswan Eko Wahyu Susanto; Agus Dani; Yohan Bahtiar; Miftakhul Huda; Setiyo Rojikin; Ahsin Fahmi Mubarok
Devote: Jurnal Pengabdian Masyarakat Global Vol. 4 No. 4 (2025): Devote: Jurnal Pengabdian Masyarakat Global, 2025
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/devote.v4i4.5119

Abstract

Based on data from the East Java Central Statistics Agency (BPS), coconut production in East Java province in 2022 was recorded at 231,934 tonnes. This data shows that East Java is one of the coconut production centres in Indonesia, which reached a national production of 2.87 million tonnes in the same year. However, the obstacles often faced by MSMEs are the limitations of the equipment and technology used in printing, drying and marketing briquettes. Most of the equipment and technology available today is still manual and unable to optimally meet production needs. One such MSME is Briket ‘Batu Bara’, located in Babadan Hamlet, Ngebrak Village, Gampengrejo Sub-district, Kediri Regency. With the available TTG briquette moulding machines and drying ovens, it is hoped that the production process can be accelerated and production output increased. The method used is the provision of tools/machines as well as assistance in the use of machines and digital marketing training for partners.The tangible results of this community service activity include an increase in productivity. Previously, manual production involved two stages, with the printing process followed by oven drying, taking 120 minutes per kilogram and yielding 40 kilograms of product per day. Now, the process takes 10 minutes less per kilogram, while product yield has increased to 40 kilograms per day. The predicted average profit increase is approximately 39.21%, while the average increase in rupiah is 1.034 million rupiah. Thus, the data for July 2025 and September 2025 shows a significant increase of 46.87%. This increase is attributed to the optimal utilisation of the machine developed through the PKM project, coupled with enhanced marketing efforts using digital marketing platforms such as ‘Shopee’.
Pemanfaatan Teknologi Triboelectric Nanogenerator pada Aliran Air yang Kecil di Desa Tiru Kidul Gurah Kabupaten Kediri: Utilization of Triboelectric Nanogenerator Thecnology on Small River Flows in Tiru Kidul Village, Gurah, Kediri Regency Hadi Rahmad; Zulfa Khalida; Dion Yanuarmawan; Setiyo Rojikin; Hiding Cahyono
Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi Vol. 10 No. 2 (2026): June (In Progress)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jindeks.v10i2.9802

Abstract

Desa Tiru Kidul merupakan desa yang menjadi bagian wilayah Kecamatan Gurah, Kabupaten Kediri, Provinsi Jawa Timur, Indonesia yang memiliki jumlah total penduduk sebanyak 5.153 jiwa. Sebagian besar luas daerahnya merupakan persawahan yang minim penerangan saat malam hari. Terutama dijalan desa yang dikelilingi oleh sawah dan ladang. Jalan yang minim penerangan selain menjadi penghalang untuk melakukan aktifitas juga menjadi penghambat kegiatan di sawah yang sangat diperlukan saat malam hari. Terdapat potensi penghasil energi di desa yaitu aliran air sekitar sawah yang belum dimanfaatkan dengan baik. Dalam kegiatan yang telah dilakukan menggunakan metode atau tahapan penyelesaian yaitu dengan perencanaan teknologi Triboelectric Nanogenerator, pelatihan keterampilan, uji coba, dan evaluasi. Kegiatan yang telah dilakukan pada Desa Tiru Kidul pada mulanya diharapkan mampu meningkatkan laju produktifitas hasil pertanian serta membuat warga merasa aman dan nyaman saat melalui jalan desa yang dikelilingi sawah karena penerangan yang memadai. Kegiatan dilaksanakan oleh tim pada awal tahun hingga akhir tahun 2025. Setelah kegiatan dilaksanakan dan dievaluasi, terjadi peningkatan keterampilan sebesar 80%. Selain itu, peningkatan penggunaan iptek tercapai dengan adanya pemanfaatan aliran sungai yang kecil.
Co-Authors Abdul Muhyi Abdul Muhyi Agus Dani Agus Dani Ahmad Dony Mutiara Bahtiar Ahsin Fahmi Mubarok Akmal Afif Kenedi Arwin Dion Yanuarmawan Eko Pujiyuliyanto Fajar Paundra Fajar Paundra Hadi Rahmad Hanif Ridhwanul Majid Hiding Cahyono Kenedi, Akmal Afif Khairul Imad Miftakhul Huda Miftakhul Huda Moch Wisnu Arif Sektiono Mochammad Abdullah Salim Mohamad Amin Muhammad Syaukani Muhyi, Abdul Opi Sumardi Paundara, Fajar Paundra, Fajar Pujiyuliyanto, Eko Riswan Eko Wahyu Susanto Yohan Bahtiar Yohan Bahtiar Yohan Bakhtiar Yudi Kurniawan Yudi Kurniawan Zulfa Khalida