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All Journal Jurnal Energi Dan Manufaktur Jurnal Teknik Mesin Jurnal Optimasi Sistem Industri ROTOR: JURNAL ILMIAH TEKNIK MESIN INTEKNA Jurnal Bisnis, Manajemen, dan Informatika Turbo : Jurnal Program Studi Teknik Mesin Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Jurnal Teknik Mesin Electrician : Jurnal Rekayasa dan Teknologi Elektro Finger : Jurnal Ilmiah Teknologi Pendidikan TEKNOSIA Jurnal Polimesin Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development Jurnal Keilmuan dan Aplikasi Teknologi Industri
Helmizar -
Teknik Mesin-Universitas Bengkulu, Bengkulu, 38371, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Needs Analysis for the Development of Intelligent Wheelchair Assistant Technology to be Integrated into Hybrid Classes for Students with Disabilities Eko Risdianto; Helmizar Helmizar; Adhadi Kurniawan; Nor Nazrina Mohamad Nazry
FINGER : Jurnal Ilmiah Teknologi Pendidikan Vol. 3 No. 3 (2024): Finger : Jurnal Ilmiah Teknologi Pendidikan
Publisher : CV. Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/finger.v3i3.328

Abstract

This study aims to analyze students' needs for the development of intelligent wheelchair assistant technology to be integrated into hybrid classes for students with disabilities. This research is motivated by the importance of creating a foundation for developing more inclusive and effective technology in the world of education. The use of intelligent wheelchair assistant technology is expected to improve the learning experience of students with disabilities and enable more equitable and inclusive education. The research is part of quantitative research conducted in March 2024. The population in this study consisted of 124 students from several universities. The instrument used in this study was a needs analysis questionnaire sheet consisting of 19 statements with answer choices following the Likert scale guidelines. The results of the needs questionnaire analysis showed that students needed the development of intelligent wheelchair assistant technology to be integrated into hybrid classes for students with disabilities as evidenced by the results of the needs analysis questionnaire of 81.39% in the strongly agree category.
Pendekatan Stochastic Linear Programming untuk Optimasi Distribusi Sayuran dalam Mengatasi Fluktuasi Harga dan Produksi Rama Dani Eka Putra; Tessa Zulenia Fitri; Helmizar; Abdul Hamid Hakim
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol. 25 No. 2 (2025): Regular Issue
Publisher : SEKOLAH TINGGI TEKNOLOGI INDUSTRI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/6fyy7608

Abstract

Penelitian ini menganalisis distribusi dan keseimbangan pasar bayam di Kota Bengkulu menggunakan dua pendekatan: deterministik dan stokastik. Data tahun 2021-2024 dari Kementerian Pertanian digunakan untuk membangun model supply-demand. Pendekatan deterministik menunjukkan harga keseimbangan Rp7.640/kg dan volume 1.228 ton. Sementara itu, pendekatan stokastik melalui simulasi Monte Carlo (1.000 iterasi) menunjukkan harga rata-rata keseimbangan Rp7.600 150/kg dengan probabilitas kelebihan pasokan sebesar 73.4%. Koefisien variasi pasokan dan permintaan masing-masing 7.0% dan 7.9%, menandakan stabilitas relatif namun dengan risiko distribusi tidak merata. Hasil ini sejalan dengan studi serupa di Semarang dan Bandung yang menemukan pola over-supply sayur daun akibat distribusi lokal yang terbatas. Penelitian ini merekomendasikan penerapan sistem distribusi berbasis data stokastik untuk perencanaan produksi bayam di Kota Bengkulu.
Experimental study of screw number effects on Archimedes screw turbine performance for low-head microhydropower Helmizar Helmizar; Sulistriyono Sulistriyono; Khotso Sai; Ahmad Fuad Ab Ghani; Afdhal Kurniawan Mainil
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i5.8851

Abstract

The increasing need for sustainable energy has prompted the development of small-scale hydropower technologies for low-head conditions in remote areas. This study experimentally examined the effect of screw number on the performance of an Archimedes Screw Turbine (AST) under identical laboratory conditions. Three configurations, namely single-, double-, and triple-screw turbines, were tested at the same hydraulic head, flow discharge, and inclination angle. Torque and rotational speed were measured using load cells and tachometers, while turbine performance was evaluated based on output power and efficiency. The results showed that increasing the number of screws improved turbine performance under the tested conditions. The triple-screw configuration produced a maximum torque of 0.54 Nm at 60 rpm and a maximum output power of 4.64 W with an efficiency of 55% at 120 rpm. The double- and single-screw configurations showed lower performance across the tested operating conditions. The improved performance of the triple-screw configuration was associated with greater water containment and momentum transfer. These findings indicate that screw number is an important design parameter for AST performance under low-head conditions. Among the configurations investigated, the triple-screw turbine provided the highest efficiency and output power and a wider operating range. Further investigation is required to determine whether increasing the screw number beyond three provides additional performance benefits under different hydraulic conditions.
Co-Authors Abdul Hamid Hakim Adhadi Kurniawan Afdhal Kuniawan Mainil Afdhal Kurniawan Maini Afdhal Kurniawan Mainil Agus Nuramal Agus Suandi Agustian, Alvin Bayu Ahmad Fuad Ab Ghani Alqap, A. Sofwan F Andang Wijanarko Angky Puspawan Bismantolo, Putra Chossy Aulia Prasetyo Dedi Suryadi Eko Risdianto Fauzan Andreas FEPY SUPRIANI Firmansyah Adam Permana Agustian Fuad Dwi Hanggara Ghozali, Syaiful Ginting, Zefanya Karsten Hamdan Rizal Maulana Handi Wilujeng Nugroho Hardiansyah Hendi Gunawan Hendri Hestiawan Hendri van Hoten Hery Suhartoyo Hibatullah, Fauzi Ichsan, Muhammad Ibrahim ISMAEL , ALIF RAHMAN PELDIANSYAH Khairul Amri Khotso Sai Khotso Sai Khotso Shai M. Arif Munanda M.Hapis Apmarwansahrowi Makmun Reza Razali Mochammad Yusa Muhamad Yasin Muhammad Khairul Amri Rosa Nia Arfina Foci Nor Nazrina Mohamad Nazry Nurbaiti Nurbaiti Nurbaiti Nurcholish Windiharto Nurul Hidayati Nurul Iman Supardi Pratama, Samuel Yoga Rahmat Iman Mainil Rama Dani Eka Putra Rama Dani Eka Putra Rijalul Rahman Hakim Rosa, Khairul Amri Satria, Miko Setiawan, Yudi Sulistrionio, Sulistriono Sulistriyono Sulistriyono Tessa Zulenia Fitri Tessa Zulenia Fitri Wiranto, Imam Yovan Witanto Yovan Witanto Yudi Setiawan