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Analisis Kualitas Udara Ambien di Kota Padang: Konsentrasi Polutan, Distribusi Spasial, dan Implikasi Kebijakan Ahmad Juanda; Donny Fernandez; Toto Sugiarto; Dwi Sudarno Putra
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 3 No. 3 (2025): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v3i3.328

Abstract

Transformasi ekonomi Kota Padang telah mengakselerasi industrialisasi, pertumbuhan demografis, dan motorisasi yang berimplikasi pada degradasi kualitas udara ambien. Eskalasi kasus infeksi saluran pernapasan akut (ISPA) selama periode 2020-2024 mengindikasikan urgensi evaluasi komprehensif terhadap kontaminan atmosferik sebagai basis formulasi strategi mitigasi pencemaran. Metode deskriptif-kuantitatif dilakukan di sepuluh titik sampling representatif untuk mengevaluasi parameter kualitas udara. Hasil menunjukkan status kualitas udara Kota Padang masih memenuhi standar PP No. 22 Tahun 2021 dengan seluruh parameter SO₂ (32,2-102 μg/m³), NOₓ (31,1-86,2 μg/m³), CO (1.214-4.296 μg/m³), dan PM₁₀ (0,17-15,3 μg/m³) dalam kategori ISPU "Baik", dimana analisis regresi mengidentifikasi 73,4% variasi konsentrasi polutan dipengaruhi oleh intensitas pembangunan, dinamika demografis-sosial, dan densitas lalu lintas dengan heterogenitas spasial signifikan yang menunjukkan konsentrasi maksimal di RTH Imam Bonjol, Terminal Anak Aia, dan Jalan Raya Indarung sebagai koridor dengan aktivitas antropogenik intensif dan mobilitas tinggi. Rapid urban modernization and economic growth in Padang City have contributed to the degradation of ambient air quality, posing potential risks to public health. This study aims to evaluate the concentrations of key air pollutants—SO₂, NOₓ, CO, and PM₁₀—and to identify dominant influencing factors. A quantitative descriptive approach was applied to ten sampling points representing diverse activity zones. Results indicate that all parameters met the national ambient air quality standards (PP No. 22/2021) and were classified as “Good” by the Air Pollution Standard Index (ISPU): SO₂ (32.2–102 μg/m³), NOₓ (31.1–86.2 μg/m³), CO (1,214–4,296 μg/m³), and PM₁₀ (0.17–15.3 μg/m³). Regression analysis revealed that 73.4% of pollutant concentration variance was significantly influenced by infrastructure development, demographic growth, and traffic density. Spatial heterogeneity highlighted pollution hotspots at Imam Bonjol Green Open Space, Anak Aia Terminal, and Jalan Raya Indarung, which should be prioritized in future urban air quality mitigation strategies.
Jenis Pekerjaan dan Karir di Bidang Otomotif bagi Lulusan Jurusan Teknik Otomotif Sugiarto, Toto; Giatman, M.; Syah, Nurhasan; Putra, Dwi Sudarno; Hidayat, Nuzul; Baharudin, Agus
PAKAR Pendidikan Vol 22 No 1 (2024): Published in January 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pakar.v22i1.341

Abstract

The research aims to describe the types of jobs in the automotive sector and record jobs entered by automotive departement engineering graduates. Research is a type of qualitative descriptive, the data used is in the form of qualitative data from interviews, field observations, document analysis, and survey results. The research sample was 93 respondents, 69 respondents used a questionnaire, and 24 respondents spread over 13 companies were conducted using interview and observation techniques. The results of the study show that there are several types of jobs that graduates can enter and pursue as well as careers, into four career fields, namely: technician, sales marketing, training instructor, and teacher. For a career in mechanics, the career paths are: mechanic, mechanic team leader, mechanic chief, service advisor, workshop head, and service manager. Career paths in sales marketing, namely: sales during training, sales marketing 1 (s1), sales marketing 2 (s2), sales marketing 3 (s3), sales supervisor, marketing manager , and branch head. Career paths in the field of instructor training, namely: training instructor, head instructor, instructor manager, head of the HRD division, and HRD manager. Career paths as a teacher, namely: teachers, heads of workshop, heads of departments, vice principals, school principals, school supervisors, and heads of the education sector. In addition to the four fields of work and career paths, there are several other types of work, such as: heavy equipment operator, aircraft maintenance, few are self employed in the automotive sector (car repair, car buying and selling, car rental business).
GDSS Prototype Model for Supplier Selection at MDM Cooperative Azmi, Meri; Sonatha, Yance; Rahmayuni, Indri; Paboreal Dunque, Kristine Mae; Putra, Dwi Sudarno
JOIV : International Journal on Informatics Visualization Vol 5, No 1 (2021)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.5.1.473

Abstract

MDM is a trade cooperative business unit that supplies healthy food options for consumers around the Andalas University campus. So far, the selection of suppliers that provide supply goods to the stores is only based on the trust between both parties, which is the principle of mutual acquaintance and kinship. The problems that may arise from a process like this are the lack of the right supplier, unavailability of goods, relatively higher product prices, late delivery, and low-quality goods. Therefore, we need a GDSS that is capable of overcoming these problems. This GDSS helps in decision-making by determining the right supplier for each of the stores owned by the MDM Cooperative. The methods used are AHP, TOPSIS, and BORDA, involving six criteria and five tested alternatives. The AHP method is used to obtain the weight of each criterion taken from the pairwise comparison matrix. The TOPSIS method is used to determine which suppliers get priority for supply goods. Combining the AHP and TOPSIS methods can reduce the weaknesses of the TOPSIS itself by giving subjective weights. The use of the BORDA method can provide maximum results in selecting this supplier. This GDSS also involves three decision-making bodies: the head of the cooperative, the deputy, and the treasurer. The results of this prototype can show the best alternative selected based on the ranking method.
A Web-based Group Decision Support System for Retail Product Sales a Case Study on Padang, Indonesia Azmi, Meri; Satria, Deni; Mulya, Farhan Rinsky; Sonatha, Yance; Putra, Dwi Sudarno
JOIV : International Journal on Informatics Visualization Vol 7, No 3 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.3.1331

Abstract

The industrial sector's growth has led to an increase in the number of industrial products available in the market. However, this has made it more challenging for retail merchants to choose which items to sell due to the overwhelming number of options. The seller must carefully consider various factors such as the type, quality, and probability of selling the goods to turn a profit. This research proposes a group decision support system to assist retail sellers in selecting the products to sell. The system is designed to process various information on comparing retail products against specific criteria, enabling sellers to make quick and accurate decisions. To achieve optimal results, this study combines three methods in the decision-making calculation process: Fuzzy Logic, EDAS, and Borda methods. The Fuzzy Logic method is used to assign a value to an unclear criterion, followed by the EDAS method ranking process, and ending with the combination of the decision-making results using the Borda method. The group decision support system is web-based and has been proven to provide effective solutions for retail business actors to increase sales and reduce losses. By using this system, retail sellers can make informed decisions about their products, enabling them to optimize their profits and reduce their risks. In conclusion, the increase in the number of industrial products has created challenges for retail merchants, but this research proposes a solution in the form of a group decision support system. Combining Fuzzy Logic, EDAS, and Borda methods results in an effective decision-making process that allows retail sellers to make informed decisions and achieve their business goals.
Optimasi Keseragaman Aliran Subsonic Wind Tunnel melalui Konfigurasi Screen Mesh dan Honeycomb Ashim Al Afif; M.Yasep Setiawan; Wawan Purwanto; Dwi Sudarno Putra
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 3 No. 4 (2025): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v3i4.372

Abstract

Kebutuhan pengujian aerodinamika menuntut kualitas aliran yang seragam pada terowongan angin subsonik. Penelitian ini bertujuan mengoptimasi konfigurasi screen mesh dan honeycomb untuk menurunkan intensitas turbulensi dan menghasilkan aliran laminar pada subsonic wind tunnel skala laboratorium. Metode yang digunakan adalah eksperimen dengan tujuh konfigurasi, mulai tanpa screen, satu hingga tiga lapis screen mesh, serta kombinasi screen mesh dan honeycomb. Visualisasi aliran dilakukan menggunakan smoke visualization pada test section. Hasil menunjukkan bahwa empat konfigurasi awal masih menampilkan pola aliran berpusar dengan kecepatan sekitar 5,8–5,4 m/s. Penambahan honeycomb pada konfigurasi kelima hingga ketujuh menghasilkan aliran yang lurus dan stabil dengan kecepatan lebih rendah (±4,6–4,3 m/s) dan karakteristik laminar flow. Konfigurasi tiga lapis screen mesh dan honeycomb memberikan kestabilan aliran terbaik dan direkomendasikan untuk pengujian aerodinamika bodi kendaraan. Reliable aerodynamic testing requires highly uniform flow in a subsonic wind tunnel. This study aims to optimise the configuration of screen mesh and honeycomb inserts to reduce turbulence intensity and obtain laminar flow in a laboratory-scale subsonic wind tunnel. An experimental method was employed with seven configurations: no screen, one to three layers of screen mesh, and combinations of screen mesh and honeycomb. Airflow in the test section was evaluated using smoke visualization. The first four configurations still exhibited vortical patterns with velocities around 5.8–5.4 m/s. Adding a honeycomb in the fifth to seventh configurations produced straight and stable streamlines with lower velocities (≈4.6–4.3 m/s) characteristic of laminar flow. The configuration with three layers of screen mesh and a honeycomb yielded the most stable flow and is recommended for aerodynamic testing of vehicle bodies.
Pengembangan Video Pembelajaran Pengisian Fluida Pendingin pada Sistem Pengkondisian Udara Mobil Ilham; Andrizal; Milana Milana; Dwi Sudarno Putra
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 2 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i2.399

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya pemahaman mahasiswa terhadap materi pengisian fluida pendingin pada mata kuliah Teknologi Pengkondisian Udara. Penelitian ini bertujuan mengembangkan video pembelajaran pengisian fluida pendingin pada sistem pengkondisian udara mobil yang valid dan praktis digunakan sebagai media pembelajaran. Metode yang digunakan adalah penelitian dan pengembangan dengan model 4-D yang meliputi tahap define, design, develop, dan disseminate. Instrumen penelitian berupa angket validitas dan praktikalitas yang diberikan kepada dua validator dosen Universitas Negeri Padang, satu dosen pengampu mata kuliah, dan 40 mahasiswa sebagai responden. Video pembelajaran dikembangkan dengan dukungan subtitle dan peningkatan kualitas audio. Hasil penelitian menunjukkan bahwa video memperoleh validitas materi sebesar 80,00% dan validitas media sebesar 81,67%, keduanya pada kategori sangat valid. Hasil uji praktikalitas memperoleh skor 5.321 dari 6.000 dengan persentase 88,68% dan kategori sangat praktis. Temuan ini menunjukkan bahwa video pembelajaran layak digunakan sebagai media pendukung pembelajaran praktik pengisian fluida pendingin pada sistem pengkondisian udara mobil. This study was motivated by students’ limited understanding of refrigerant charging in the Air Conditioning Technology course. It aimed to develop a learning video on refrigerant charging in automotive air conditioning systems that is valid and practical for instructional use. The study employed a Research and Development design using the 4-D model, consisting of the define, design, develop, and disseminate stages. The research instruments included validity and practicality questionnaires administered to two expert validators from Universitas Negeri Padang, one course lecturer, and 40 student respondents. The learning video was developed with subtitles and improved audio quality to support clearer procedural instruction. The results showed that the video achieved a material validity score of 80.00% and a media validity score of 81.67%, both categorized as very valid. The practicality test obtained a score of 5,321 out of 6,000, with a percentage of 88.68%, categorized as very practical. These findings indicate that the developed learning video is feasible as a supporting medium for practical learning of refrigerant charging in automotive air conditioning systems.
Integrated Examines of Hydrolyzers, Compression Ratio, Spark Plugs, and Ethanol Gasoline in Four Stroke Spark Ignition Engine for Potentially Application of Higher Ethanol Application Wawan Purwanto; Hasan Koten; Hasan Maksum; Dwi Sudarno Putra; Anang Baharuddin Sahaq
Automotive Experiences Vol. 9 No. 1 (2026)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.15499

Abstract

Optimizing combustion parameters by incorporating alternative fuels and modifying the engine's mechanical properties is essential to improving the thermal efficiency and performance of modern internal combustion engines. This study examines the impact of HHO gas utilization, variations in compression ratios, various types of spark plugs, and ethanol gasoline blends on the torque and other characteristics of a 4-stroke fuel-injected single cylinder engine. Hydrogen is generated via electrolysis and used as a supplementary fuel. The Taguchi method was employed to create tests involving four variables: HHO percentage, compression ratio, spark plug type, and ethanol mixture. Testing occurred at 5000 RPM under a load of 1800 Watts. The findings indicated that the combination of 20% HHO, a compression ratio of 16.9:1, platinum spark plugs, and E-80 ethanol yielded optimal engine performance, with thermal efficiency reaching 60% at 7500 rpm. Moreover, the results of deposit content analysis after 50 hours of operation indicated that the ideal design produced fewer deposits than RON 92 gasoline.
Pengembangan Sirkuit Security System untuk Meningkatkan Driver Behaviour Control pada Kendaraan Hanif Fahrian; Suroto Munahar; Dwi Sudarno Putra
Automotive Experiences Vol. 1 No. 01 (2018)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1555.849 KB) | DOI: 10.31603/ae.v1i01.2018

Abstract

Salah satu penyebab kecelakaan jalan raya adalah cara mengemudi yang tidak tepat, misalnya melebihi kecepatan maksimal yang diijinkan. Ketika kendaraan terjadi kecelakaan dapat menimbulkan ledakan yang sangat besar, seperti yang terjadi pada kasus mobil tangki pengangkut bahan bakar. Melihat permasalahan ini perlu solusi untuk memonitor cara mengemudi (driver behaviour). Metode yang diterapkan dengan aplikasi Electronic Control Unit (ECU) security system. Sistem ini dihubungkan dengan inputan Vehicle Speed Sensor (VSS) yang dibangkitkan oleh transmisi dan Thorttle Position Sensor (TPS) dibangkitkan oleh katup throttle valve. Sebuah microcontoller dan GPRS shield digunakan untuk mengirimkan pesan pada pemilik dan pengemudi kendaraan. Hasil yang diperoleh, saat kendaraan berjalan di atas kecepatan 60 km/jam, sistem dapat mengirimkan informasi tanda bahaya melalui sms ke ponsel pemilik kendaraan dan pengemudi.
Smart and Sustainable Mobility: A Systematic Review of Industry 4.0 Applications in Automotive Sustainability, Alternative Fuels, and EV Charging Systems Wagino Wagino; Mycel A. Capilayan; Muji Setiyo; Volodymyr Tymofiiv; Dwi Sudarno Putra; Dori Yuvenda; Rahmat Desman Koto
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.13431

Abstract

This systematic review analyzes the integration of Industry 4.0 technologies in sustainable manufacturing and clean energy technology within the automotive industry, focusing on electric vehicle infrastructure development and renewable energy implementation. Through a comprehensive analysis of 25 selected articles from 200 articles (10 sustainability articles, 12 alternative fuels, and 3 electric vehicle charging stations articles) published between 2018 and 2024, this study employs PRISMA methodology combined with bibliometric content and scientometric analysis. The review reveals significant temporal evolution in research focus, progressing from basic energy efficiency studies (2018-2020) to enhanced Industry 4.0 technology integration (2020-2022), culminating in strong convergence between renewable energy implementation, smart infrastructure development, and circular economy principles (2022-2024). Key findings highlight the critical role of AI, IoT, and blockchain in enabling sustainable manufacturing processes and smart grid integration for EV infrastructure. Integrating hybrid energy storage systems with clean energy technologies is crucial for addressing energy transition challenges and reducing fossil-fuel dependence. The study identifies research gaps in comprehensive methodological approaches integrating technical innovation, sustainable manufacturing, and climate action considerations, particularly in developing regions. Future research opportunities include machine learning applications for dynamic energy system optimization and innovative business models supporting sustainable technology implementation across various socio-economic contexts. This review contributes to understanding technology integration patterns in sustainable transportation systems. It provides strategic recommendations for researchers, industry practitioners, and policymakers in advancing low-carbon mobility solutions and resilient infrastructure development.
Rancang Bangun Prototipe Sistem Pengaman Berbasis Sensor Getaran pada Sepeda Motor Listrik Hasil Konversi Alhimni Rusydi; Dwi Sudarno Putra; Ahmad Arif; Agus Baharudin
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 2 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i2.409

Abstract

Perkembangan sepeda motor listrik hasil konversi perlu diikuti dengan sistem pengaman tambahan karena kendaraan jenis ini masih rentan terhadap gangguan atau potensi pencurian. Penelitian ini bertujuan merancang dan menguji prototipe sistem pengaman berbasis sensor getaran pada sepeda motor listrik hasil konversi. Metode yang digunakan adalah Research and Development dengan model ADDIE, meliputi tahap analisis, perancangan, pengembangan, implementasi, dan evaluasi. Sistem dikembangkan menggunakan sensor accelerometer, Arduino Nano, buzzer, dan indikator LED. Hasil pengujian menunjukkan bahwa sistem mampu mendeteksi perubahan percepatan getaran pada rentang 1,2g–1,6g atau 11,76–15,68 m/s². Rentang tersebut digunakan sebagai parameter respons sistem, mulai dari kondisi aman hingga bahaya ringan. Temuan ini menunjukkan bahwa prototipe yang dikembangkan dapat berfungsi sebagai perangkat deteksi gangguan awal pada sepeda motor listrik hasil konversi, dengan kebutuhan pengujian lanjutan pada skenario operasional yang lebih beragam. Converted electric motorcycles require additional security systems because they remain vulnerable to physical disturbances and potential theft. This study aimed to design and test a vibration-sensor-based security system prototype for a converted electric motorcycle. The study employed a Research and Development approach using the ADDIE model, consisting of analysis, design, Development, implementation, and evaluation. The system was developed using an accelerometer sensor, Arduino Nano, buzzer, and LED indicator. Test results showed that the system could detect changes in vibration acceleration within the range of 1.2g–1.6g, equivalent to 11.76–15.68 m/s². This range was used as the system response parameter, from safe condition to minor danger. The findings indicate that the developed prototype can function as an initial disturbance detection device for converted electric motorcycles, although further testing under broader operational scenarios is still required.
Co-Authors Abadi, Zainal Abadi Abdul Aziz Abdullah, MT, Dr. Rijal Abimanyu, Bintang Abratiguin, Joel O. Ade Irma Suryani Afosma, Pinto Pratama Agus Baharudin Agus Bahrudi1 Agus Prayuda Ahmad Abadi Arif Ahmad Arif Ahmad Arif Ahmad Arif Ahmad Juanda Alamsah Alfiza Candra Alhimni Rusydi Amal, Nurul Anang Baharuddin Sahaq Anbiya, Rafiqul Andri Septiandes Andrizal Andrizal Andrizal Aqshal Pramadanta Arif Ainur Rafiq Arif, Ahmad Abadi Ashim Al Afif Asmar Yulastri Azani, Magribfa Azizul Amri Baehaqi Baharudin, Agus Bahrul Amin Cagadas, Dominic Olango Dani Saputra, Hendra David Yulian Dedi Setiawan Deni Satria Dian Novian Dicky Rohid Fikra Dominic Olango Cagadas Donny Fernandez Dori Yuvenda Dunque, Kristine Mae Paboreal edy susanto Erzeddin Alwi Fadlan Ardiansyah, Muhammad Fahmi Otriza Fahrian, Hanif Fajar Hanifudin Afifi Fauzan Zharbaini Firoj Mulani Fitrah, Yunanda Ganefri . Gito Gito Giantoro - Hafis Khoiri Hafiz Hidayat Hamid Nasrullah Hanif Fahrian Hasan Köten Hasan Maksum Hendra Dani Saputra I Gusti Bagus Wiksuana Ikhwan, Aroma Ilham Indri Rahmayuni Inna Kholidasari Irma Yulia Basri Jheri Hermanto Jheri Hermanto Kathleen Ebora Padrigalan Krismadinata Krismadinata Kristine Mae Paboreal Dunque kustanrika, irma wirantina M Giatman M Nasir M Nasir M Nasir M. Sadly Firmansyah M. Yasep Setiawan M.Riki Rinaldi M.Yasep Setiawan M.Yasep Setiawan Martias Martias , Martias Martias Martias Martias Martias Masykur Masykur Maulana, Fajar Meri Azmi Meri Azmi Meri Azmi Meri Azmi Meri Azmi - Miftahul Jannah Milana Milana Miswardi Mochamad Bruri Triyono Mufdi Ashadrul Aldi Pane Muhammad Febriyana Ilham Pratama Muhammad Rif'at Muji Setiyo Muliady, Rabby Mulya, Farhan Rinsky Muslikhin Muslim Muslim Mutia Ariska Putri Mycel A. Capilayan Naufal Alifka Nizwardi Jalinus Nurindah Dwiyani Nurindah Dwiyani Nuzul Hidayat, Nuzul Paboreal Dunque, Kristine Mae Pahlevi, Reza Trio Pinto Pratama Afosma Pratama, Moh Yoga Pratama Purwanto, Wawan Putra, Dede Prima Rahmat Desman Koto Rahul Fuaddi Ramadhan, Miftahuddin Rasyidah, - Remon Lapisa Restu Sahid Ridwan Ridwan Ridwan, Ridwan Rifdarmon, Rifdarmon Risfendra, Risfendra Rizky Farhanul Lisan Rusdiman Sahid, Restu Setiawan, Yasep Sri Lestari Sugiarto, Toto Suliono Suliono Suroto Munahar Syalsa Billa Ahmad Thorikul Huda Toto Sugiarto Toto Sugiarto Toto Sugiarto Toto Sugiarto Toto Sugiarto Tri Lestari Volodymyr Tymofiiv Wagino Wagino Wagino Wahyudi Pratama Wakhinuddin S Wakhinuddin S - Wawan Purwanto Yance Sonatha Yogianda Aprilindo Zainal Abadi Abadi Zames, Fajri Pratama Zikri Zikri Zulfan, Aldi Tri Okta