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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Rekayasa Mesin INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL PENDIDIKAN TAMBUSAI JETL (Journal Of Education, Teaching and Learning) Jurnal Teknik Mesin Jurnal Teknologi Informasi dan Pendidikan JRTI (Jurnal Riset Tindakan Indonesia) EDUTEC : Journal of Education And Technology Jurnal Vokasi MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Reswara: Jurnal Pengabdian Kepada Masyarakat Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat SELODANG MAYANG Teknomekanik Multicience International Journal of Multidisciplinary Research and Literature (IJOMRAL) Jurnal Vokasi Mekanika Journal of Social And Economics Research Journal of Community Service Tsaqofah: Jurnal Penelitian Guru Indonesia CONSEN: Indonesian Journal of Community Services and Engagement Jurnal Aplikasi IPTEK Indonesia Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development International Journal of Multidisciplinary Research of Higher Education (IJMURHICA) IJIMCE : International Journal of Innovation in Mechanical Construction and Energy journal of social and economic research Jurnal Pendidikan MIPA IJIS Edu : Indonesian Journal of Integrated Science Education
Arwizet Arwizet, Arwizet
Departemen Teknik Mesin Universitas Negeri Padang
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Effect of Hydrophobic Surface on Thermoelectric Cooling-Based Atmospheric Water Generator Irfan, Abdillah; Kurniawan, Andre; K, Arwizet; Fernanda, Yolli
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 2 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i2.843

Abstract

Water has a very important role in everyday life. Apart from humans, other living things also depend on water to survive. But there are still many areas in the world even in Indonesia still experiencing drought or clean water crisis. Therefore, new innovations are needed in producing water. One of the innovations is the atmospheric water generator (AWG) which utilizes the formation of water from air or condensation. The AWG in this research uses thermoelectricity as a cold source. Where thermoelectricity is less noisy, easy to obtain and assemble into a system, has a long service life without requiring maintenance. But thermoelectrics have disadvantages where cooling on thermoelectrics is less efficient. So to overcome this, I as the author use a hydrophobic surface as a condensation surface where it can accelerate condensation and increase the amount of water produced. In this study to see the comparison, tests were carried out using various types and surface areas.
Solar Home System Plant Menggunakan Gabungan Dari DVD dan Solar Panel Prasetya, Kresna Adi; K, Arwizet; Fernanda, Yolli; Kurniawan, Andre
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 2 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i2.860

Abstract

Indonesia is a tropical country that has great potential for harnessing and managing solar energy. At present, the technology of converting solar energy into electrical energy such as solar cells still has weaknesses in terms of cost. Therefore, this study aims to test the potential of solar energy by creating a solar home system plant using DVD and Zener diode. This solar home system plant using DVD has the advantage of using low cost and the power generated can be said to be sufficient. In addition, this product can be used as a substitute for solar cells if properly applied. This study uses an experimental method in a quantitative approach. In this study, the independent variable is the structure of the solar panel while the dependent variable is the amount of energy read by the voltmeter. This study uses the photoelectric principle. Where photoelectricity is an electron released from the surface of an object exposed to light. This study was carried out by looking at how much power could be generated by DVD and Zener diode. The results showed that DVD and Zener diode can generate electrical energy, but the results are still too small and a large number of DVDs are needed to generate more energy. So it can be concluded that DVD still cannot replace solar panels, but can be used as a tool to maintain the stability of solar panels.
Students' Perception Of Machining Workshop Facilities And K3 Knowledge Towards Learning Outcomes In The Subject Of Lathe Machining Engineering In Grade 11 Of SMK Negeri 1 Sumatera Barat Sihombing, Ahmad Rifai; K, Arwizet; Rifelino, Rifelino; Primawati, Primawati
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 2 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i2.861

Abstract

Vocational schools are a strategic forum to introduce and build students' awareness of the importance of behaviors that support Occupational Health and Safety (K3). Based on the results of pre-observation at SMK Negeri 1 West Sumatra, it was found that several problems were quite significant related to learning outcomes and students' knowledge about Occupational Health and Safety (K3) in the Lathe Machining Engineering Subject. Inadequate workshop facilities result in students not understanding and not utilizing K3 equipment. This problem is the author's material to conduct research to measure Students' Perception of Machining Workshop Facilities and Students' K3 Knowledge of Student Learning Outcomes which is carried out by descriptive analysis methods. This study analyzed two independent variables and one dependent variable. Variables Workshop facilities, variables K3 Knowledge and Learning Outcomes as variables Y. The purpose of this study is to show that the percentage results obtained from each variable can describe how students' perception of the K3 Machining and Knowledge Workshop Facilities and Learning Outcomes are. The results of the study show that the value of the variable (Workshop Facility) has a perception at a low level, namely 7 (35%) students, the variable (K3 Knowledge) can illustrate that students' perception of K3 Knowledge is very high where as many as 7 (35%) students have this perception This illustrates that students' understanding of K3 Knowledge is very good. Furthermore, the Y variable (Learning Outcomes) shows a high percentage value it can concluded that most students have a good understanding of K3 Knowledge.
Kontribusi Minat Belajar Dan Kompetensi Pedagogik Guru Dengan Hasil Belajar Siswa Kelas Xi Pada Mata Pelajaran Teknik Pemesinan CNC di SMK Negeri 5 Padang Monica, Okzalia; Arwizet, Arwizet
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Rendahnya hasil belajar siswa pada mata pelajaran Teknik Pemesinan CNC di SMK Negeri 5 Padang menjadi permasalahan utama dalam penelitian ini. Faktor utama yang diduga berkontribusi terhadap kondisi tersebut adalah rendahnya minat belajar siswa dan kurang optimalnya kompetensi pedagogik guru dalam mengelola pembelajaran. Tujuan dari penelitian ini adalah untuk mengetahui kontribusi minat belajar dan kompetensi pedagogik guru terhadap hasil belajar siswa kelas XI pada mata pelajaran Teknik Pemesinan CNC. Penelitian ini menggunakan metode kuantitatif dengan pendekatan korelasional, serta didukung oleh data kualitatif sebagai pelengkap. Sampel penelitian terdiri dari 73 siswa yang dipilih menggunakan teknik purposive sampling. Pengumpulan data dilakukan melalui penyebaran angket dan dokumentasi nilai siswa. Hasil analisis menunjukkan adanya hubungan yang signifikan antara minat belajar dan kompetensi pedagogik guru terhadap hasil belajar siswa. Nilai signifikansi untuk minat belajar adalah 0,000, dan untuk kompetensi pedagogik guru sebesar 0,001. Hasil uji F simultan juga menunjukkan signifikansi sebesar 0,000. Berdasarkan hasil tersebut, dapat disimpulkan bahwa minat belajar siswa dan kompetensi pedagogik guru berkontribusi secara positif dan signifikan terhadap hasil belajar. Oleh karena itu, peningkatan kedua faktor tersebut perlu menjadi perhatian dalam upaya meningkatkan pencapaian belajar siswa pada pembelajaran Teknik Pemesinan CNC di SMK Negeri 5 Padang.
Validasi Mesh Pada Simulasi Numerik Ground Effect Airfoil NACA 4412 Menggunakan Ansys Fluent Rizki Ramadhan Nasution, Muhammad; Yanti Sari, Delima; K, Arwizet; Fernanda, Yolli
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Penelitian ini membahas validasi pengaruh jenis dan jumlah mesh terhadap hasil simulasi numerik fenomena ground effect pada airfoil NACA 4412 menggunakan perangkat lunak Ansys Fluent. Simulasi dilakukan pada kondisi dua dimensi dengan variasi tiga tingkatan mesh, yaitu mesh 1 (21.230 sel), mesh 2 (100.752 sel), dan mesh 3 (221.798 sel). Tujuan utama penelitian ini adalah untuk menentukan konfigurasi mesh yang optimal berdasarkan akurasi dan efisiensi waktu komputasi, serta memvalidasi hasil simulasi terhadap data eksperimen numerik dari penelitian sebelumnya oleh (Win & Thianwiboon, 2021). Parameter yang diamati meliputi koefisien lift (Cl), koefisien drag (Cd), kontur tekanan, dan kontur kecepatan. Validasi dilakukan dengan menggunakan metode uji independensi grid. Hasil menunjukkan bahwa mesh 2 memberikan kesesuaian terbaik terhadap data eksperimen dengan error Cl sebesar 2,12% dan Cd sebesar 15%. Simulasi menunjukkan bahwa peningkatan jumlah sel tidak selalu menghasilkan akurasi yang lebih baik. Oleh karena itu, pemilihan mesh yang tepat menjadi faktor penting dalam simulasi CFD yang efisien dan akurat.
Analyzing the Influence of Critical Thinking Skills, Self-Efficacy, Digital Literacy, and Industrial Internship on Students' Work Readiness: SEM-PLS Approach Aryasandy, Nensy; Arwizet, Arwizet; Ambiyar, Ambiyar; Sukardi, Sukardi; Rozi, Fakhrur
Jurnal Pendidikan MIPA Vol 26, No 1 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i1.pp721-735

Abstract

This quantitative study investigates the influence of critical thinking skills, self-efficacy, digital literacy, and internship experience on work readiness among vocational high school students. This research is motivated by the persistently high unemployment rates among vocational graduates in Indonesia, which reflect a gap between the skills acquired in school and those demanded by the job market. of the study involved 143 twelfth-grade students from SMK Negeri 2 Sungai Penuh and employed an explanatory quantitative approach. Data were collected using a structured questionnaire and analyzed through Structural Equation Modeling (SEM) using SmartPLS 3.0. The findings confirmed that the measurement model satisfied the required criteria for reliability, convergent validity, and discriminant validity. The structural model testing indicated that critical thinking skills, self-efficacy, and internship experience significantly and positively influenced work readiness, while digital literacy did not demonstrate significant effect. Furthermore, self-efficacy was found to partially mediate the correlation between critical thinking and internship experience with work readiness, although the effect sizes of these mediations were relatively small. These results emphasize the importance of enhancing critical thinking, building self-efficacy, and improving the quality of internship programs in the industry to increase vocational graduates' employability. The study highlights that fostering these factors in vocational education can better prepare students for the workforce. Future research is recommended to explore additional external factors that may influence work readiness, such as socio-economic status, personal motivation, or family background, and to broaden the sample size to improve the generalizability of the findings to a larger population.    Keywords: critical thinking skills, self-efficacy, digital literacy, industrial internship, students' work readiness. 
Evaluation of the Implementation of the Independent Curriculum Using the CIPP Model yanriko, armizal; Waskito, Waskito; Karudin, Arwizet; Giatman, M
JETL (Journal of Education, Teaching and Learning) Vol 10, No 2 (2025): Special Issue
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jetl.v10i2.7572

Abstract

The implementation of the Merdeka Curriculum in vocational schools requires systematic evaluation to ensure its effectiveness and relevance to industry needs. This study aimed to evaluate the implementation of the Merdeka Curriculum in the Welding Engineering Department of SMK Negeri 1 Bengkalis using the CIPP (Context, Input, Process, Product) evaluation model. A quantitative descriptive method was employed, involving teachers, students, and stakeholders as respondents. The context evaluation showed that curriculum goals were highly relevant and aligned with welding industry demands (85%, Very Good). Input evaluation indicated adequate teacher competence and learning materials, but limited infrastructure support (68%, Fair). The process evaluation revealed effective application of project-based learning, with high student engagement and active participation. Product evaluation showed that students achieved strong learning outcomes and welding competencies, and expressed general satisfaction with the curriculum. Overall, the results suggest that the Merdeka Curriculum is suitable for vocational education and supports student-centered learning. However, improvements in infrastructure and supervision are needed to strengthen the implementation. This study highlights the importance of ongoing curriculum evaluation to ensure alignment with industry expectations and the successful development of student competencies
Development of Jobsheet Based on Collaborative Project Based Learning in Lathe Machining Engineering Subjects Nugraha, Ikhsan Dani; Karudin, Arwizet; Ambiyar; Refdinal
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11350

Abstract

Effective practical learning in vocational education requires instructional tools that support collaboration and contextual problem-solving. Jobsheets integrated with Collaborative Project-Based Learning (CPjBL) are expected to address this need in Lathe Machining subjects. This study employed a modified 4D development model (Define, Design, Develop, Disseminate) to create a CPjBL-based jobsheet. The research involved 11th-grade Machining Engineering students at SMK Negeri 5 Padang, selected via purposive sampling. Data collection instruments included expert validation sheets, student questionnaires, observation checklists, and pretest-posttest assessments. The jobsheet featured collaborative tasks such as producing lathed components, with defined roles and peer coordination. Validation scores indicated strong content and design quality: material experts (92%), media experts (87%), and teachers (95%). Practicality was rated highly by both teachers (92.33%) and students (84.67%). The effectiveness test showed a significant learning gain with an N-Gain score of 0.65 (high category). Observations revealed active student collaboration through defined group roles, communication, and joint accountability. The CPjBL-based jobsheet effectively enhanced student engagement and machining competencies. Its integration into vocational learning aligns educational practices with industrial expectations and supports the development of collaborative, work-ready graduates.
Effect of Airfoil Profile Variations on the Rear Wing of a Racing Car on the Downforce Coefficient Using Computational Fluid Dynamics (CFD) Simulation Hendra, Carlen Muhammad; Sari, Delima Yanti; K, Arwizet; Qalbina, Fitrah
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 3 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i3.881

Abstract

Variation of airfoil profile shape in race car rear wings plays a crucial role in generating optimal downforce to improve traction and vehicle stability. The main issue addressed in this study is the lack of clarity regarding which airfoil profile and angle of attack configuration are most effective in producing the highest downforce coefficient (Cdown). This research aims to analyze the aerodynamic performance of symmetric airfoils NACA 0012 and NACA 0015 at three different angles of attack, namely 9.5°, 19.5°, and 29.5°, using Computational Fluid Dynamics (CFD) simulation. The simulations were performed under steady-state flow conditions with an appropriate turbulence model to accurately capture pressure distribution and airflow characteristics. Results show that NACA 0012 generated higher and more stable Cdown values at low to medium angles, with the highest value of 1.4 at 29.5°. In contrast, NACA 0015 exhibited a more gradual performance increase and reached a Cdown of 1.2 only at the highest angle. The study concludes that slender airfoil profiles like NACA 0012 are more suitable for circuits with sharp corners, while NACA 0015 is better suited for straight tracks requiring progressive aerodynamic stability. This research contributes to optimizing rear wing design based on the aerodynamic demands of race cars.
Optimizing Students' Understanding of the Mechanical Properties of Stainless Steel through Interactive Learning Media based on Machine Learning Karudin, Arwizet; Leni, Desmarita; Nasrullah, Nasrullah; Sumiati, Ruzita; Haris, Haris
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 6, No 2 (2024): July 2024
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v6i2.3114

Abstract

Traditional learning media tends to have limitations in providing interactive experiences that can stimulate better understanding. This is supported by changes in learning styles among students, influenced by extensive exposure to computers and the internet, leading students to prefer learning with the aid of visualizations. This research designs, develops, and tests a machine learning-based visualization tool integrated with the Streamlit framework to enhance students' understanding of the mechanical properties of materials. This visualization tool consists of four main features: data analysis, correlation analysis, 3D visualization, and prediction models using machine learning. The data used for training the machine learning model includes tensile test data of low-alloy steel, comprising mechanical properties, chemical elements, and heat treatment temperatures. The research results indicate that the visualization tool can illustrate the cause-and-effect relationships of parameters influencing the changes in the mechanical properties of low-alloy steel. Each feature in this visualization tool can be utilized to support the analysis of mechanical properties and improve students' understanding of material mechanical properties. Additionally, the visualization tool is evaluated by experts, with information accuracy scoring 4 in the good category, visualization quality at 4.25 in the good category, suitability for learning at 4 in the good category, and ease of use at 4.5 in the good category. Nevertheless, further research and development are needed to test and expand the use of this visualization tool in various learning contexts and other material fields.
Co-Authors - Primawati A, Yufrizal Abbas, Muhammad Rabiu Abd. Aziz Abd. Aziz Abdul Aziz Ade Habibbullah Adriansyah Adriansyah Aggrivina Dwiharzandis Agia Kulkarni Preti Agustian, Rizki Ahmad Arif Ahmad Arif Ahmad Natafian Fauzi Ahmad, Salamuddin Akbar, Yaumil Akhmad Rais Aldi Alfarizi Aldi Alfarizi Alvien Khardin Ambiyar, Ambiyar Amir, Irfan Ananda, Opi Andika Putra Andika Saputra Andre Kurniawan Andre Kurniawan Andre Kurniawan Anjelika, Dea Qori Anuar, Bakri Anugrah, Pinto Arafat, Andri Arafat, Andril Arief Juneirul Pratama Ariyanto, Dedi Aryasandy, Nensy Asep Bunyamin Azel Rozandi Azmil Azman Bayu Rianto Berliansyah, Aqilvin Berry Delfi Andra Budi Syahri Bulkia Rahim Bunyamin, Asep Butar, David Beckham Butar Chrismondari, Chrismondari Daniel Fifaldi Nardo Darmawi . Delima Yanti Sari Denisa Putri Jadenis Desmarita Leni Deviya Aprilman Dodi Ariska Doni Saputra Dori Yuvenda Efendi, Defindo Efriwan Efriwan Eko Indrawan Endri Rizki Anugrah Erdi, Putri Nurhalimah Erizon, Nelvi Erlanda, Rendi Esa Hafizul A Fachrur Rozi Fachry Novrianda Faisal, Afdal Fajri Ramadhan Fakhrur Rozi, Fakhrur Febri Prasetya Fiqi Gusti Irawan Firman Omni Saputra Fitrah Qalbina Giatman, M Gito Okto Rito FM Gusta Nanda Habibbullah, Ade Hafiz Alfadri Ramadhan Haris Haris Haris Haris, Haris Hasan Maksum Hasanuddin Hasanuddin Hasanuddin WS Helga Yermadona Hendra Hendra Hendra, Carlen Muhammad Hendri Nurdin Idra Putra Irfan Amir Irfan, Abdillah Irma Yulia Basri Irzal Irzal Jalil, Muhammad Jasman Jasman Jasman Jasman Jasman Junil Adri Khairuni Delfi Anisa Krismadinata Krismadinata Krismadinata Krismadinata kusuma, Yuda Perdana M. Agus Trian Putra M.Y. Setiawan Martias Martias Miftahul Arrafi Monica, Okzalia Muchlisinalahuddi Muchlisinalahuddi Muhammad Akhbar Muhammad Anwar Muhammad Aulia Ifsan Muhammad Lathif Mahendra Muharir Muharir Muharni, Riza Mulianti Mulyanti Muslim Muslim Nabawi, Rahmat Azis Nadia Utari Nasrullah Nasrullah Nasution, Ridhollah Nelvi Erizon Nidya Meliza Putri Nizwardi Jalinus Nofri Helmi Nofri Helmi Helmi Nogi Handepi Nugraha, Ikhsan Dani Nurdin Hendri Nurfajri Nurfajri Nurfajri Nurfajri, Nurfajri Nuzul Hidayat, Nuzul Oky Erlangga Oky Erlangga Okzama, Rebi OSKAH DAKHI Ovi Marendah Pasaribu, Reynaldy Peng, Lim Hooi Prasetya, Kresna Adi Primawati Primawati Primawati Primawati, Primawati Purnama, Andreadi Purwantono purwantono purwantono Purwantono Purwantono Putra, Idra Putra, Rido Putri Nurhalimah Erdi Rahmad Robby Alzam Rahmat Afdhol Rahmat Syukri Ramfit Novari Randhy Alfarishi Rebi Okzama Refdinal Refdinal Refdinal Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Remon Lapisa Remon Lapisa Remon Lapisa Rifelino Rifelino Rio Ramadhan Rivanol Chadry Rizka Rizka Rizka Rizka, Rizka Rizki Ramadhan Nasution, Muhammad Rizky Ema Wulansari Rizky Ema Wulansari Robby, Muhammad Robert, Julio Ruzita Sumiati Said Fuad Amry Salamuddin Ahmad Setiawan, Sepdirama Shabir Ahmed Sharma, Jai Kumar Sihombing, Ahmad Rifai Simon, Ryan Ananda Soretire Lanrewaju Kamorudeen Sri Rizki Putri Primandari Steven Thomas Anggriyanto Sukardi Sukardi Supardi Supardi Suparno Suparno Suparno Suparno Suparno Syah, Muhammad Rayhan Syukri, Rahmat Toto Sugiarto Totoh Andayono Usin Usin Usmeldi Usmeldi Veri Budiawan Arham Vicky Prasetyo Wahyu Ananda Putra Wahyudi Fachrul Syafra Wakhinuddin WAKHINUDDIN SIMATUPANG Waskito Waskito Waskito Waskito, Waskito Winaldi Alfonis Yandra, Muvi Yanriko, Armizal Yanto, Doni Tri Putra Yazmendra Rosa Yoga Novrialdy Yolli Fernanda Yolli Fernanda Yufrizal A Yufrizal Yufrizal Yufrizal Yufrizal Yulira Emputri Yurika Putri Zainal Abadi Zainal Abdi