Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Journal of Renewable Energy and Mechanics Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development
Jhonni Rahman
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Enhancing Agricultural Land Processing Through Tillage Machine Utilization in Pangean Farmer Groups Jhonni Rahman; Yulianto, Dody; Rizal, Yose; Subekti, Purwo; Asrol, Asrol; Anwar, Moh. Syaiful; Zuliantoni, Zuliantoni
Dharmakayana Vol 2 No 2 (2025): November : Dharmakayana: Journal of scientists, engineers, educators and scientif
Publisher : Program Studi Teknik Mesin, Fakultas Teknik Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dk.v2i2.45243

Abstract

The use of plowing machines is an important innovation in horticultural farming systems because it can increase land efficiency and productivity. This activity aims to analyze the effectiveness of plowing machines in accelerating the soil cultivation process and its impact on increasing the productivity of horticultural farmers in the Jaya Makmur Farmers Group. A descriptive approach was used by observing the plowing machine's working process and comparing it with traditional soil cultivation methods commonly used by farmers. Data were obtained through field observations and interviews with farmer group members. The results showed that the use of plowing machines increased the speed of soil cultivation up to ten times faster than traditional methods. In addition, plowing machines resulted in more even soil inversion, creating more optimal soil conditions for horticultural plant growth. These findings confirm that the use of plowing machines not only saves time and labor but also has the potential to increase crop productivity through more efficient soil management. Thus, the use of plowing machines is a strategic solution to support increased efficiency and yields in horticultural cultivation.
SURVEY TINGKAT KEPUASAN PELATIHAN KEUANGAN UMKM BENGKEL OTOMOTIF @BOS DALAM MENYELESAIKAN PERMASALAHAN KEUANGAN USAHA Jhonni Rahman; Azwirman; Sutan lazrisyah; Kurnia Hastuti; Eddy Elfiano
BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Vol. 5 No. 1 (2025): BHAKTI NAGORI (Jurnal Pengabdian kepada Masyarakat) Juni 2025
Publisher : LPPM UNIKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/bhakti_nagori.v5i1.4289

Abstract

Asoritas Bengkel Otomotif Se-Riau (@BOS) adalah kelompok UMKM bengkel otomotif yang bergerak dibidang jasa perawatan dan perbaikan otomotif kendaraan roda empat di wilayah Provinsi Riau. Mereka adalah para owner bengkel otomotif yang membangun usaha bengkel secara otodidak hanya mengandalkan keterampilan teknis, dan rata-rata usaha mereka sudah berjalan lebih dari 10 tahun. Seiring dengan bertambahnya konsumen, saat ini mereka mulai merasakan keluhan terkait manajemen keuangan yang semakin kompleks. Oleh karena itu, sebagai mitra kerjasama Prodi Teknik Mesin Universitas Islam Riau berusaha membantu mereka dengan mengadakan pelatihan manajemen keuangan usaha. Hasil survey yang dilakukan terhadap pelaksanaan manajemen keuangan didapatkan respon yang menunjukkan bahwa pelatihan yang dilakukan sangat relevan dengan kebutuhan mereka dan mereka seluruhnya masih menginginkan pelatihan keuangan lanjutan dengan topik yang spesifik mengenai permasalahan praktis yang mereka alami.
The Effect of Fibre Direction on the Mechanical Properties of Polyester Matrix-Based Palm Oil Fibre Composite Yulianto, Dody; Arman Maulana; Shandy Kurniadi; Ari Prasetyo; Sehat Abdi Saragih; Jhonni Rahman; Kurnia Hastuti; Eddy Elfiano
Journal of Renewable Energy and Mechanics Vol. 9 No. 01 (2026): REM VOL 9 No 01 2026
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/rem.2026.23953

Abstract

The increasing use of composite materials, especially for the two-wheeled vehicle industry, requires an in-depth study of fibre direction. Where the fiber direction can determine the occurrence of initial damage to the composite material. This study aims to produce a composite board from oil palm fruit fibre reinforced with a polyester matrix. In this study, the composite board consists of 3 types, namely sample 1 (discontinuous direction 0°), sample 2 (discontinuous direction 90°), and sample 3 (random fibre direction). The highest bending and impact test results were in specimen 1 with a 0° fibre direction, namely 63.93 MPa and 0.519 Joules/mm2, while the lowest bending and impact test results were in specimen 3 with a random fibre direction, namely 58.63 MPa and 0.382 Joules/mm2. Specimens with horizontal fibre directions have higher strength values. When the fibres are arranged in a 90° direction and a random direction, the mechanical strength is lower, because the load is mostly borne by the material matrix, which is generally weaker than the fibres. Macrophotography at 0° shows that the bonding mechanism of oil palm fruit fibres with the polyester resin matrix is quite good, with visible fibre pullout. This indicates that the bond between the fibre and the matrix weakens as the applied load increases. When the matrix fails, the fibres can still bear the load, so the fracture process does not occur simultaneously with the matrix failure. If the composite fibres become more brittle and the load is distributed to the fibres, which pulls them out, this will result in high toughness and bending strength.
Co-Authors Anwar, Moh. Syaiful Ari Prasetyo Arman Maulana Asrol Asrol Azwirman Eddy Elfiano Kurnia Hastuti Purwo Subekti Sehat Abdi Saragih Shandy Kurniadi Sutan Lazrisyah Yose Rizal Yulianto, Dody Zuliantoni, Zuliantoni