Article Per Year (5 Year)
p-Index From 2020 - 2025
4.449
P-Index
This Author published in this journals
All Journal Voteteknika (Vocational Teknik Elektronika dan Informatika) JTEV (Jurnal Teknik Elektro dan Vokasional TELKOMNIKA (Telecommunication Computing Electronics and Control) JINOP (Jurnal Inovasi Pembelajaran) Jurnal Pendidikan Teknik Mesin JOIV : International Journal on Informatics Visualization Edukasi: Jurnal Pendidikan QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI Mimbar Ilmu International Journal of Educational Dynamics (IJEDS) Ensiklopedia of Journal Edumaspul: Jurnal Pendidikan EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Pendidikan dan Keluarga Jurnal Pendidikan Teknologi Informasi dan Vokasional MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering AEEJ : Journal of Automotive Engineering and Vocational Education Jurnal Vokasi Mekanika Ranah Research : Journal of Multidisciplinary Research and Development
Refdinal, Refdinal
Departemen Teknik Mesin, Fakultas Teknik, Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 35 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 35 Documents
Search

 1   2   3   4 
Project-based Module Development as Teaching Material for Light Vehicle Engine Maintenance: Validity Test Muslim Muslim; Nizwardi Jalinus; Refdinal Refdinal; Ahmad Arif; Wagino Wagino
JINoP (Jurnal Inovasi Pembelajaran) Vol. 9 No. 1 (2023): Mei 2023
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jinop.v9i1.23442

Abstract

The limitations of teaching materials are not equipped with motivating content and inappropriate learning strategies, which make students feel difficult in mastering the competencies they need. The purpose of this present study is to test the level of validity of the product developed in the form of a learning module. The development procedure used is the ADDIE model. Research data was obtained through observation, interviews, and research questionnaires. The research questionnaire is used to obtain the validity value of the product being developed. The validity test was carried out in the development phase, for this reason, this research stage describes only the development phase. Validity test data was obtained by distributing questionnaires to 5 expert validators consisting of 2 expert lecturers and 3 productive teachers. The results of the study show that teaching materials developed on a project basis have a valid category. Product development will continue with revisions provided by a team of experts. The steps to be taken after the validation stage are the practicality and effectiveness of the product being developed. Teachers can also develop and arrange teaching materials so that the use of this product is not limited to the competencies that are developed. There is a need for further research regarding the development of teaching materials to create teaching materials that can motivate students in learning.
Effectiveness of Using Virtual Reality Media for Students' Knowledge and Practice Skills in Practical Learning Refdinal Refdinal; Junil Adri; Febri Prasetya; Elfi Tasrif; Muhammad Anwar
JOIV : International Journal on Informatics Visualization Vol 7, No 3 (2023)
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.3.2060

Abstract

Virtual Reality (VR) has become an option to be used as a learning medium in engineering. A study of the effectiveness of VR is needed to determine which fields and types of learning are suitable to employ it. This work aims to reveal the effectiveness of virtual reality media on students' cognitive and practice skills. The role of the media as a tool to make learning more efficient and effective. VR media brings learning in the virtual world that seems to be done in real terms. The research method used was a quasi-experiment with a posttest-only control group design research approach. The research subject consisted of two homogeneous classes. Learning outcomes are evaluated by testing students' cognitive and practice skills. The novelty of this research is the creation of learning media that are identical to the welding process simulator. Visual practice places and equipment in virtual form through VR are made to resemble practice places and equipment used in real situations. This similarity aims to provide concrete information about the welding process. The study revealed that the use of VR media significantly affected their knowledge. However, it did not significantly affect their practice skills. VR has not been able to provide an experience closer to real-life conditions during welding, such as heat, sparks, and sounds that appear when the electrode touches the workpiece. The distance between the electrode and the workpiece significantly affects the welding result in the welding process.
Effect of Temperature and Pressure on the Density of Organic Waste Briquettes Riky Satria; Yolli Fernanda; Refdinal Refdinal; Sri Rizki Putri Primandari
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 3 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v5i3.246

Abstract

Organic waste is one way of utilizing biomass to produce energy. The advantage of biomass is that it tends to be renewable. The energy from biomass that will be used to make briquettes is processed and compressed into a more regular form with a high calorific value. This research will involve organic waste as a source of biomass. To obtain briquettes that are dense, tight, and in good condition, tests were conducted with various temperature and pressure settings. Organic waste with particle size between 18 and 30 mesh is used in this method. Briquetting using heat-treated molds, with temperatures of 200, 250 and 300 °C with a holding time of 5 minutes and also applying pressures of 5 MPa, 10 MPa, 15 MPa and 20 MPa. At 300 °C, 10 and 20 MPa pressure, the briquettes were dense, tight and had high density values. Sampah organik merupakan salah satu cara pemanfaatan biomassa untuk menghasilkan energi. Keuntungan dari biomassa adalah bahwa hal itu cenderung diperbaharui. Energi dari biomassa yang akan digunakan untuk membuat briket diolah dan dikompresi menjadi bentuk yang lebih teratur dengan nilai kalor yang tinggi. Penelitian ini akan melibatkan limbah sampah organik sebagai sumber biomassa. Untuk mendapatkan briket yang padat, rapat, dan dalam kondisi baik, dilakukan pengujian dengan berbagai pengaturan suhu dan tekanan. Sampah organik dengan ukuran partikel antara 18 dan 30 mesh digunakan dalam metode ini. Pembriketan menggunakan cetakan yang diberi panas, dengan suhu 200, 250 dan 300 ℃ dengan waktu penahanan 5 menit dan juga pemberian tekanan 5 MPa, 10 MPa, 15 MPa dan 20 MPa. Pada suhu 300 °C, tekanan 10 dan 20 MPa dihasilkan briket yang padat, rapat dan memiliki nilai densitas yang tinggi.
Pendidikan Vokasional Dalam Perspektif Filosofi Pragmatisme Hamdani Hamdani; Nizwardi Jalinus; Refdinal Refdinal; Fadhli Ranuharja
Jurnal Pendidikan Teknologi Informasi dan Vokasional Vol 5, No 2 (2023): Jurnal Pendidikan Teknologi Informasi dan Vokasional
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/29278

Abstract

With regard to vocational education, philosophy is the field that studies human life and thought. This study aims to explain how pragmatic philosophy analyzes vocational education, that is, education that focuses on work-ready outcomes. In this situation, pragmatic philosophy is considered a relevant theoretical foundation for guiding curriculum development and learning approaches in vocational education. The data collected in this study is collected through literary studies or research institutions of libraries. Literature sources come from journals on google scholar and scopus. There's a total of 150 relevant papers that are used to describe this penalty. After data collection, analysis and conclusions are made to produce a useful summary. The research discussed in this article shows that the philosophy of pragmatism provides a strong foundation for building vocational education that is responsive to the needs of the world of work.Kata kunci: Pragmatisme, Vokasi, Pendidikan
Effect of Using a Solar Can Heater Collector on the Temperature of a Room at Several External Temperature Variations Willy Vernando; Andre Kurniawan; Refdinal Refdinal; Yolli Fernanda
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 3 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v5i3.281

Abstract

This research discusses a heating collector device which functions to warm a room that has a relatively cold temperature so as to create thermal comfort. Thermal comfort greatly influences human performance in activities in a room so that effective performance in a room can be achieved. This collector functions to collect solar heat and increase the temperature of the sun's heat which will then be channeled into a closed room. This collector is in the form of a box measuring 750x450 mm. This collector consists of cans arranged vertically which are useful as a medium for capturing heat and increasing solar heat. The measurement results show that the room heater can warm a cold room at a temperature of 22.4⁰C to 28.2⁰C. and the air heating capacity obtained is 0.24 kJ to 4.58 kJ. Penelitian ini membahas tentang alat kolektor pemanas yang berfungsi untuk menghangatkan ruangan yang memiliki suhu relatif dingin sehingga terciptanya kenyamanan termal. Kenyamanan termal sangat berpengaruh terhadap kinerja manusia dalam beraktifitas di dalam suatu ruangan sehingga dapat tercapai efektifitas kinerja di dalam suatu ruangan. Kolektor ini berfungsi mengumpulkan panas matahari serta memperbesar suhu dari panas matahari yang nantinya akan di alirkan ke suatu ruangan yang tertutup. Kolektor ini berbentuk boks yang berukuran 750x450 mm,kolektor ini terdiri dari kaleng yang disusun secara vertical yang berguna untuk media penangkap panas dan memperbesar panas matahari. Hasil pengukuran menunjukkan bahwa pemanas ruangan dapat menghangatkan ruangan yang dingin pada suhu 22,4⁰C menjadi 28,2⁰C. dan kapasitas pemanas udara yang diperoleh adalah 0,24 kj hingga 4,58 kj.
Co-Authors - Primawati Abdul Aziz Abdullah, MT, Dr. Rijal Ahmad Arif Alvien Khardin Ambiyar, Ambiyar Ambyar Ambyar Andre Kurniawan Antoni Hilman Aprizal Saputra Arisman Telaumbanua Arwizet Arwizet, Arwizet Asyahri Hadi Nasyuha Azmil Azman Budi Syahri Buyung Solihin Hasugian Dino Adi Putra Donny Fernandez Dzaky Dzulqa Arijal Edidas , Edidas Elfi Tasrif Evan Prakarsa Fadhilah Fadhilah Fadhli Ranuharja Febri Prasetya Fikrul Aziz Ginting, Erika Fahmi Hamdani Hamdani Hasan Maksum Hermi Zaswita Irma Yulia Basri Jalius Jama Junil Adri M Iqbal M. Yasep Setiawan Marsono Marsono Martias Martias Maryatun Kabatiah Masyuni Hutasuhut Meri Yolanda Muhammad Akhbar Muhammad Anwar Muhammad Ichsan Muslim Muslim Niki Prasetio L Nizwardi Jalinus Nizwardi Zalinus Nurdin Hendri OSKAH DAKHI Purwanto, Wawan Purwantono Purwantono Ramadhan, Muhammad Sabir Randa M Remon Lapisa Reti Handayani Ridwan Ridwan Rifelino Rifelino Riky Satria Rizki Hardian Sakti Ronal Watrianthos Rosmidah Hasibuan Salsabila, Unik Hanifah Sri Rizki Putri Primandari Suparno Suparno Syaflan Sandi Harta Putra Syafni Yulia Devani Syahrial Syahrial Syaiful Islami Toto Sugiarto Toto Sugiarto Wagino Waskito Willy Vernando Yanita, Merita Yanto, Doni Tri Putra Yoga Andika Yohanni Syahra Yolanda Ferdani Melinton Yolanda Putri Yolli Fernanda Yufrizal Yufrizal Yuke Permata Lisna