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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Voteteknika (Vocational Teknik Elektronika dan Informatika) SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS) JTEV (Jurnal Teknik Elektro dan Vokasional Journal of Tropical Soils Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) JOIV : International Journal on Informatics Visualization Al Ishlah Jurnal Pendidikan Sinkron : Jurnal dan Penelitian Teknik Informatika QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI JOURNAL OF SCIENCE AND SOCIAL RESEARCH SCAFFOLDING: Jurnal Pendidikan Islam dan Multikulturalisme JSR : Jaringan Sistem Informasi Robotik Community Engagement and Emergence Journal (CEEJ) Jurnal Pendidikan Teknologi Informasi dan Vokasional At-Tajdid : Jurnal Pendidikan dan Pemikiran Islam Teknomekanik ARSY : Jurnal Aplikasi Riset kepada Masyarakat Journal of Community Service Journal of Engineering Researcher and Lecturer Asian Journal of Science, Technology, Engineering, and Art Jurnal Penelitian Pendidikan Indonesia
Refdinal, Refdinal
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Social Sciences Other

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From passive to critical consumption: The role of educational content in short videos to improve students' critical thinking skills Aspar, Fathir; Refdinal, Refdinal; Erizon, Nelvi; Jasman, Jasman; Irzal, Irzal; A, Yufrizal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i1.42323

Abstract

The engaging and personalized nature from short video makes it quickly popular, yet concerns persist about their potential to diminish critical thinking skills. This study investigates whether short videos with educational content can improve students' critical thinking skills. Using a quasi-experiment method, Thirty-three participants were divided into control and experimental groups, with critical thinking measured using the Holistic Critical Thinking Scoring Rubric (HCTSR) based on essay analysis in pretest and posttest. After administering educational short videos to the experimental group, the results showed that there was an increase in students' critical thinking skills, shown by the result of controlling the pretest variable through the ANCOVA test with a p-value of <0.001. The result highlights the potential of educational short videos as tools for fostering critical thinking by providing interventions which prioritize treatment fidelity through standardized protocols (SOPs) for content delivery, validating assessment tools, and structuring content design. Recommendations for future research include larger sample sizes, repeated data collection at strategic intervals, and rigorous validation of question complexity.
Numerical Analysis of Air-Water Heat Exchanger as Passive Cooling System in Air Ventilation Saputra, Firman Omni; Lapisa, Remon; Refdinal, Refdinal; Syahri, Budi
Asian Journal of Science, Technology, Engineering, and Art Vol 1 No 2 (2023): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v1i2.2019

Abstract

Indonesia has a humid tropical climate and many major cities are located along the coast, causing a large energy demand for thermal comfort. It takes a lot of energy to get thermal comfort. So one of the effective strategies for energy efficiency of HVAC (Heating, Ventilation, and Air Conditioning) systems is passive cooling techniques. Therefore, savings are made by using heat transfer devices as passive cooling in air vents. This research was conducted to see the comparison between experimental data and Computational Fluid Dynamic (CFD) simulations. The implementation method in this research was carried out on Solidoworks 2020 software. Based on experimental data, the inlet temperature is 32.35˚C, the outlet temperature is 28.4˚C and the water temperature is 27.58˚C and the mass flow rate is 0.0936 kg/s, the effectiveness is 0.228, then a variation with a mass flow rate of 0.1872 kg/s is obtained with an effectiveness of 0.122 and a mass flow rate variation of 0.2808 kg/s is obtained with an effectiveness of 0.083.
Pengembangan Media Game interaktif berbasis Scratch untuk Meningkatkan Literasi dan Minat Baca Pada Anak Firdaus, Novemli; Giatman, Giatman; Maksum, Hasan; Refdinal, Refdinal; Abdullah, Rijal
JSR : Jaringan Sistem Informasi Robotik Vol 9, No 1 (2025): JSR: Jaringan Sistem Informasi Robotik
Publisher : AMIK Mitra Gama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58486/jsr.v9i1.474

Abstract

Penelitian ini bertujuan untuk mengembangkan media game interaktif berbasis Scratch sebagai upaya untuk meningkatkan literasi membaca siswa. Dengan meningkatnya tantangan di era digital, penggunaan teknologi dalam pendidikan menjadi sangat penting. Melalui pendekatan Game Edukasi, penelitian ini menerapkan metode Research and Development (R&D) dengan model ADDIE untuk merancang, mengembangkan, dan mengevaluasi aplikasi game edukasi. Hasil uji coba menunjukkan bahwa aplikasi ini mampu meningkatkan minat baca, terlihat dari tingkat keberhasilan siswa yang mencapai 86% dalam menjawab 20 soal latihan. Dengan demikian, game interaktif berbasis Scratch terbukti efektif sebagai media pembelajaran yang inovatif untuk mendukung literasi membaca pada anak.
Effect of Land Use Change on Soil Physico-chemical Characteristics in Sungai Batang, east part of Maninjau Caldera Yulnafatmawita, Yulnafatmawita; Refdinal, Refdinal; Armansyah, Armansyah; Haris, Zainal Abdul
JOURNAL OF TROPICAL SOILS Vol. 27 No. 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.79-87

Abstract

Land-use change from the forest to others will affect the soil’s physicochemical properties. The research was conducted to identify soil physicochemical properties affected by land-use change in Sungai Batang, the east-south part of Maninjau caldera. The research used a survey method from which soil was sampled at four different types of land use (forest, bushland, mixed garden, and paddy soil) at 0-30 cm depth with three replicates. The results show that the soil in Sungai Batang was still developing. It was indicated by coarse soil texture (clay loam to sandy clay loam). Land-use change from the forest to other uses has altered some soil physicochemical properties. It increased soil bulk density and decreased total soil porosity, permeability rate, SOM content, and  total-N. However, there was an increase in  soil characteristics, especially soil P-availability, CEC, Ca-  and Na-exchangeable . While the soil pH  (H2O), K-and Mg-exchangeable stayed the same. In general, land use changed from forest to other use, mostly farming land degraded physicochemical characteristics of the soil derived from volcanic materials in Sungai Batang. That was mainly due to the decrease in SOM content.
Integration of Policy and Technology in Vocational Educational Leadership: A Systematic Literature Review Mustakim, Waradzi; Giatman, M; Maksum, Hasan; Abdullah, Rijal; Refdinal, Refdinal
Jurnal Pendidikan Teknologi Informasi dan Vokasional Vol 6, No 2 (2024): Jurnal Pendidikan Teknologi Informasi dan Vokasional
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jptiv.v6i2.33016

Abstract

This systematic literature review examines the integration of policy and technology in vocational educational leadership, focusing on studies published between 2022 and 2024. The review addresses four key research questions: (1) technological tools and advancements supporting leadership in vocational education, (2) the influence of policies and frameworks on leadership strategies, (3) challenges associated with integrating policy and technology, and (4) the socio-economic and educational impacts of this integration. The findings reveal that technological tools such as Learning Management Systems (LMS), digital collaboration platforms, and advanced technologies like Artificial Intelligence (AI) and Virtual Reality (VR) are instrumental in enhancing leadership and educational outcomes. Policies promoting digital transformation, industry alignment, and inclusivity significantly shape leadership strategies. However, challenges like infrastructure limitations and policy-implementation gaps persist. Effective integration of policy and technology in vocational education leads to improved learning environments, better skill acquisition, and enhanced socio-economic outcomes, though ensuring equitable access remains a critical concern. This study provides a comprehensive understanding of how policy and technology intersect to shape vocational education leadership in contemporary settings.Keywords: Vocational Leadership, Policy Integration, Educational Technology, Digital Transformation 
Pengaruh Rasio Pencampuran Bahan Bakar Biosolar dengan Dexlite Terhadap Torsi dan Daya pada Mesin Diesel Mitsubishi L300 Randa Afabek; Primawati, Primawati; Refdinal, Refdinal; Rizki Putri Primandari, Sri
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.14255

Abstract

Penelitian bertujuan untuk menganalisis perbandingan pengaruh pencampuran bahan bakar biosolar dengan dexlite terhadap kinerja mesin diesel mitsubishi L300. Jenis penelitian ini adalah penelitian dengan pendekatan kuantitatif dengan menggunakan Metode penelitian eksperimental. Penelitian ini menggunakan dua variabel yaitu satu variabel independent (bebas) dan variabel dependent (terikat). Instrumen yang digunakan pada penelitian ini yaitu berupa alat chassis dynamometer. Subjek pada penelitian ini yaitu pengaruh rasio pencampuran bahan bakar dexlite dengan biosolar terhadap torsi dan daya pada mesin diesel Mitsubishi L300. Berdasarkan hasil pengujian, perhitungan dan pengolahan data serta analisis data yang dilakukan pada performa mesin diesel Mitsubishi L300 pada bahan bakar dexlite rasio 1:0, biosolar rasio 1:0, dexlite dengan biosolar rasio 7:3, dan dexlite dengan biosolar rasio 3:7, maka didapatkan kesimpulan bahwa pada bahan bakar dexlite dengan biosolar rasio 7:3 memang lebih unggul didalam performa mesin dengan selisih yang sedikit dibandingkan dengan bahan bakar biosolar 1:0, maka dapat disimpulkan bahwa penggunan bahan bakar biosolar 1:0 lebih efisien dan signifikan dari sampel bahan bakar lainnya.
Analisis Pengaruh Kecepatan Aliran Sistem Pendingin Terhadap Temperatur Kerja Pada Desain Motor BLDC Tipe Permanen Magnet Fluks Aksial Menggunakan Ansys Fluent Nurmansyah, Ridho; Yuvenda, Dori; Refdinal, Refdinal; Lapisa, Remon
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Abstract

Suhu motor BLDC berpengaruh langsung pada umur dan fungsionalitasnya. Suhu rotor mempengaruhi efektivitas magnet permanen, sementara suhu belitan stator berdampak pada ketahanan isolasi. Pembuangan panas yang tidak efisien dapat menyebabkan overheating, yang berpotensi mengakibatkan demagnetisasi, kerusakan isolasi, peningkatan kehilangan panas, penurunan efisiensi, dan masa pakai motor yang lebih pendek. Penelitian ini bertujuan untuk menganalisis pengaruh kecepatan aliran udara dalam sistem pendingin terhadap temperatur kerja pada Motor BLDC Tipe Permanen Magnet Fluks Aksial menggunakan fitur (CFD) Computational Fluid Dynamic pada aplikasi Ansys Fluent 2024 R1 Student Version. Motor BLDC yang digunakan dalam penelitian ini terdiri dari beberapa komponen utama, yaitu winding, stator, rotor, dan casing. Simulasi dilakukan untuk memodelkan perpindahan panas konveksi dan konduksi dalam motor pada variasi kecepatan aliran udara sebesar 10 m/s, 20 m/s, dan 30 m/s yang diberi sumber panas berasal dari Heat Loss komponen winding dan stator pada putaran 5000 RPM. Hasil simulasi menunjukkan bahwa peningkatan kecepatan aliran udara secara signifikan menurunkan suhu pada komponen-komponen motor. Suhu tertinggi pada winding, casing dan rotor secara berurut tercatat sebesar 367,83 K, 364,26 K, 360,69 K pada kecepatan aliran 10 m/s, dan menurun menjadi 339,04 K, 336,99 K, 332,88 K pada kecepatan 30 m/s. Perpindahan panas dalam motor terjadi melalui dua mekanisme utama: konduksi, yang mendominasi pada area kontak antar komponen, dan konveksi, yang mempengaruhi pendinginan komponen oleh aliran udara di sekitarnya. Velocity contour menunjukkan bahwa kecepatan fluida yang rendah terjadi di sekitar casing, yang mengindikasikan adanya area dengan perpindahan panas yang kurang optimal.
Pembuatan Dan Pengujian Cold Storage Menggunakan Kombinasi Modul Termoelektrik Dan Mesin Kompresi Uap Berbasis Energi Matahari Menggunakan Solar Cell Kandena Putra, Tegar; Karudin, Arwizet; Refdinal, Refdinal; Fernanda, Yolli
Jurnal Pendidikan Tambusai Vol. 8 No. 3 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Abstract

Abstrak Penelitian ini bertujuan untuk merancang dan menguji prototipe Cold Storage yang menggunakan kombinasi modul termoelektrik dan mesin kompresi uap berbasis energi surya sebagai sumber daya. Sistem ini dirancang untuk mengurangi ketergantungan pada energi listrik konvensional dan emisi karbon dalam penyimpanan produk pangan yang mudah rusak. Metode penelitian melibatkan desain, perakitan, dan pengujian prototipe untuk mengevaluasi performa pendinginan dan efisiensi energi. Hasil pengujian menunjukkan bahwa kombinasi termoelektrik dan kompresi uap menghasilkan pendinginan yang efisien, dengan perbandingan COP dan EER yang lebih tinggi dibandingkan metode termoelektrik tunggal. Penelitian ini mengindikasikan bahwa Cold Storage bertenaga surya dapat menjadi solusi penyimpanan pangan yang ramah lingkungan dan efisien. Implikasi dari penelitian ini adalah sebagai langkah awal dalam pengembangan teknologi penyimpanan dingin yang lebih berkelanjutan dan ekonomis.
CRITICAL THINKING SKILLS IN LEARNING PHYSICS: A BIBLIOMETRIC ANALYSIS USING VOSVIEWER Sefriani, Rini; Rahmadani, Ade Fitri; Jalinus, Nizwardi; Refdinal, Refdinal; Novrita, Sri Zulfia; Widyastuti, Rini
AT-TAJDID Vol 7, No 2 (2023): JULI-DESEMBER 2023
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/att.v7i2.3028

Abstract

Penerapan Model Pembelajaran Kooperatif Tipe Teams Game Tournament Terhadap Hasil Belajar Bimbingan TIK Putra, Dino Adi; Refdinal, Refdinal; Edidas, Edidas; Fadhilah, Fadhilah
QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Vol. 13 No. 2 (2021): Qalamuna - Jurnal Pendidikan, Sosial, dan Agama
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Program Pascasarjana IAI Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/qalamuna.v13i2.1200

Abstract

This study aims to determine the effectiveness of the application of the Teams Game Tournament (TGT) Cooperative Learning Model on ICT Guidance Learning Outcomes at UPT SMP N 2 Painan. The type of research used is experimental research. This research uses numerical research procedures and the analysis uses statistics and uses quantitative methods. For the research results, the experimental class data is 78.933 with the control class average score is 69.76. The final test analysis where the tcount is 9.484 and ttable is 1.68 with a 95% significance level so that tcount > ttable, the research hypothesis is accepted. For student activity and response, the average result is 4,301 with a percentage of 86,037 with a very good classification and for the average student response result is 4,343 with a percentage of 86,871 with a very good classification. The effectiveness of the TGT learning model in the effectiveness trial, it was found that 87% of students got a score of 70 which was classically effective and for the control class, 43.33% of students got a score of <70 which was not classically effective. In terms of Gain Score, it gets a value of 37.31% (medium). In conclusion, there is an effect of the Team Game Tournament (TGT) cooperative learning model on student learning outcomes.
Co-Authors A, Yufrizal Abdul Aziz Abdullah, MT, Dr. Rijal Abrar Tanjung Adzkia, Mhd Safiq Ambiyar, Ambiyar Ameliza, Kiki Andesko, Rio Anwar, M Ardi, Junil Arfianti, Fina Arif, Chandra Armansyah Armansyah Arwizet Arwizet, Arwizet Aspar, Fathir Aswardi Aswardi Azis, Ismail Budi Syahri Dedy Irfan Donny Fernandez Dori Yuvenda Edidas , Edidas Efrianova, Vivi Elfi Tasrif Erizon, Nelvi Fadhilah Fadhilah Fadhli Ranuharja Fadillah, Egi Fahmi Rizal Fahrezi, Muhammad Shadiq Fani Keprila Prima Fauza, Anna Niska Febri Prasetya Ferdiansyah, Ferdiyansyah Fernanda, Firza Fiandra, Y A Firdaus, Jeri Rizal Firdaus, Novemli Fitrah Qalbina Ganefri . Giatman, M Gusnita, Wiwik Hadi Kurnia Saputra Hafis, M Hamdani Hamdani Haris, Zainal Abdul Hasan Maksum Herisvan Hendra Hilman, Antoni Ika Parma Dewi Indarta, Yose Irzal, Irzal Jalinus, N Jalius, Nizwardi Jasman Jasman Junil Adri Kamil, Fadhil Muhammad Kandena Putra, Tegar Le, Sai Kham Lili Dasa Putri Maiyana, Efmi Mardizal, Jonni Maulana, Fajar Muhammad Anwar Murni Astuti Muskir, Mukhlidi Mustakim, Waradzi Nanda, Iffarial Nasution, Yeni Puspitasari Nizwardi Jalinus Novendra, Alan Novrita, Sri Zulfia Nurdin Hendri Nurmansyah, Ridho Pepito, Ma Leona Maye B. Primawati Primawati, Primawati Purwantono, Purwantono Putra, Dino Adi Putra, Meiyaldi Eka Rahmadani, Ade Fitri Ramli Ramli Randa Afabek Remon Lapisa Rifelino Rifelino Rini Sefriani Rini Widyastuti Saputra, Firman Omni Sari, Adha Kurnia Sidiq, Ahmad Halim Sri Rizki Putri Primandari sudiani, yoni Syahril Syahril Syamsu, Azhari Ta’ali, Ta’ali Unung Verawardina, Unung Usmeldi Usmeldi Utari, Nadia Wagino Waradzi Mustakim Waskito Waskito, Waskito Winda Lestari Siregar Yolli Fernanda Yuberta, Andre Yufrizal Yufrizal, Yufrizal Yulnafatmawita Yulnafatmawita