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All Journal Jurnal Teknik Vidya Karya JRPM (Jurnal Review Pembelajaran Matematika) Jurnal Onoma: Pendidikan, Bahasa, dan Sastra STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Jurnal Teknik Mesin dan Pembelajaran G-Tech : Jurnal Teknologi Terapan JMIO: Jurnal Mesin Industri dan Otomotif Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Indonesian Community Journal Sasambo: Jurnal Abdimas (Journal of Community Service)
Danang Yugo Pratomo
Universitas Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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Analisis Persepsi Peserta Didik Tentang Aktivitas Mengajar Guru Matematika Menggunakan Metode K-Means Clustering Kaloka, Tesdiq Prigel; Pratomo, Danang Yugo
JRPM (Jurnal Review Pembelajaran Matematika) Vol. 8 No. 2 (2023)
Publisher : Department of Mathematics Education, Faculty of Tarbiyah and Teacher Training, UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15642/jrpm.2023.8.2.72-84

Abstract

Education is an important aspect of human resource development. A conducive atmosphere during the learning process is very important. This atmosphere can be assessed by students' perceptions of the teaching activities of mathematics teachers. The criteria in teaching activities are material assessment, characteristics understanding, ability to manage to learn, ability to evaluate learning, and student satisfaction. The level of student satisfaction can be determined using the results of teaching activities. In this study, we focus on determining the percentage of student satisfaction. We use K-Means Clustering to analyze the result and the Elbow Method to determine the number of clusters. For the results, we got 3 clusters with the first cluster consisting of 92 students who are quite satisfied, the second cluster with 50 satisfied students, and the third cluster having 49 students not satisfied. If we transform the result to percentage, then we have 26,18% satisfied students, 48,17% quite satisfied, and 26,65% dissatisfied.
OPTIMALISASI KINERJA TRUK QUESTER CWE 370 MELALUI MODIFIKASI SISTEM VESSEL Pradani, Yayi Febdia; Tjiptady, Bella; Pratomo, Danang Yugo; Rahman, Rifki Zainur; Rohman, Mojibur
Steam Engineering Vol. 6 No. 1 (2024): STEAM Engineering, Vol. 6, No. 1, September 2024
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v6i1.15247

Abstract

The Quester CWE 370 truck is one of the most widely used transport vehicles in the industry, where reliability and operational efficiency are critical to ensuring a smooth supply chain. This research aims to optimize truck performance through vessel system modification, which focuses on improving fuel strength and efficiency. The modification process includes checking the raw material, cutting, welding, and smoothing, which is followed by testing to ensure fuel flow stability and better engine response. The results show that vessel system modifications not only improve fuel efficiency, but also extend engine life and reduce the need for routine maintenance. Thus, these modifications provide long-term benefits for the company in terms of operational cost savings and increased productivity.
Pelatihan Dunia Usaha Berbasis Teknologi untuk Meningkatkan Daya Saing PT Salam Sejahtera Tamara Rahma Widowati; Dian Julianto Wahyudi; Chintia Dwi Wangsa Kuswardani; Danang Yugo Pratomo; Saifuddin Karim; Yayi Febdia Pradani; Imam Muhtarom; Nikmatus Sholikha
I-Com: Indonesian Community Journal Vol 5 No 1 (2025): I-Com: Indonesian Community Journal (Maret 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/icom.v5i1.6659

Abstract

ABSTRACT In the digital era, adopting technology in business is crucial to enhance competitiveness, especially for SMEs in the tourism sector. PT Salam Sejahtera faces challenges in digital technology adoption, particularly in marketing and operational efficiency. This community service program aims to improve workers’ digital literacy through technology-based training. The methods include material introduction, technology demonstrations, hands-on practice, discussions, and result evaluations. The training equips participants with digital marketing skills, online booking management, and Customer Relationship Management (CRM) implementation. The results indicate an improvement in digital understanding, operational efficiency, and business competitiveness. This training demonstrates that digital transformation enhances business effectiveness and expands market reach. Continuous implementation is expected to support SMEs’ adaptation to digitalization. Keywords: Digitalization; Training; Digital Marketing; Operational Efficiency
Pemberdayaan Masyarakat dalam Pengelolaan Sampah Melalui Teknologi Tepat Guna Alat Press Hidrolik di Bank Sampah Semangka 8, Desa Tambakasri Yayi Febdia Pradani; Dian Julianto Wahyudi; Danang Yugo Pratomo; Saifuddin Karim; Imam Muhatrom; Anggi Anggresita Wulandari
I-Com: Indonesian Community Journal Vol 5 No 3 (2025): I-Com: Indonesian Community Journal (September 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i3.7762

Abstract

Program pengabdian ini bertujuan memberdayakan masyarakat dalam pengelolaan sampah melalui edukasi dan penerapan Teknologi Tepat Guna (TTG) berupa alat pengepress botol plastik. Kegiatan dilaksanakan di Bank Sampah Semangka 8, Desa Tambakasri, pada 19 Juli 2025 dengan 40 peserta. Metode meliputi penyuluhan partisipatif, demonstrasi TTG, pelatihan teknis, dan advokasi keberlanjutan. Evaluasi dilakukan melalui pre-test dan post-test, yang menunjukkan peningkatan pemahaman signifikan, seperti pemahaman 3R dari 45% menjadi 92%. Sebanyak 90% peserta tertarik mempraktikkan pengelolaan sampah mandiri, dan alat TTG terbukti mampu mengurangi volume botol hingga 80%. Program ini mendorong inisiatif lanjutan seperti komposting dan daur ulang kreatif, serta mendukung pencapaian SDGs 11, 12, dan 13 melalui teknologi sederhana, edukasi efektif, dan kolaborasi warga.
Development of the "Industrial Mandarin" MOOC for Practical Mandarin Language Learning in the Manufacturing and Technology Sectors Usadani, Galuh Bunga; Mardasari, Octi Rjeky; Pratomo, Danang Yugo; Yuriananta, Renda; Rabbani, Dzun Nun Septin Renda
Jurnal Onoma: Pendidikan, Bahasa, dan Sastra Vol. 12 No. 1 (2026): Penulis pada Edisi ini Terdiri dari Enam (6) Negara: Indonesia, Malaysia, Chin
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/onoma.v12i1.7298

Abstract

The development of the manufacturing and technology sectors requires effective cross-cultural communication skills. Mandarin has become a strategic competency in the workplace due to the large number of companies that interact with partners or experts from China. However, Mandarin language learning at the higher education level in Indonesia still tends to be academic and does not fully accommodate the practical language needs of the industrial environment. This study aims to develop a Massive Open Online Course (MOOC) called "Industrial Mandarin" as an interactive online learning medium that is contextual to the world of manufacturing and technology. The study uses the 4D (Define, Design, Develop, Disseminate) Research and Development (R&D) model. Data was obtained through interviews with industry partners and questionnaires administered to 85 respondents working in the manufacturing sector. The results show that the Industrial Mandarin MOOC has a validity rate of 91% (highly valid) and a practicality rate of 89% (highly practical). The final product includes ten learning topics, two digital modules, and explanatory videos uploaded to mooc.um.ac.id.
Enhancing Heat Treatment Learning for Mechanical Engineering Students: A Comparative Study of Corrosion Inhibitor Effectiveness on Aluminium Protection Saifuddin Karim; Pradani, Yayi Febdia; Pratomo, Danang Yugo; Muhtarom, Imam; Widowati, Tamara Rahma; Wahyudi, Dian Julianto; Wulandari, Amelia Dini; Subekhi, Prido
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.650

Abstract

Corrosion still remains a serious problem in the application of aluminum alloys, such as Aluminum 6061, which is one of the most widely used aluminum alloys in industries because of its high strength-to-weight ratio. However, the material degrades when exposed to aggressive environments, such as acidic, alkaline, or salty solutions, and the control of corrosion has been achieved with the use of synthetic chemical inhibitors, but the increasing concern of environmental and health risks has shifted attention to more eco-friendly alternatives. The present study aimed at evaluating the efficacy of three vegetable oils (coconut oil, palm oil, and soybean oil) as environmentally friendly corrosion inhibitors for Aluminum 6061, and the alloy coupons were subjected to three different corrosive solutions (hydrochloric acid, sodium hydroxide, and sodium chloride). A quantitative experimental procedure was employed to determine the corrosion rate through the measurement of the weight loss of aluminum coupons prior to and after the immersion, and the results showed that all three oils were able to reduce the corrosion rate when compared to the samples without any inhibitor. Among them, coconut oil gave the best protection, followed by soybean oil and palm oil, because the adsorption of the organic compounds and fatty acids in the oils onto the aluminum surface formed a thin layer that separated the metal and the corrosive environment. Consequently, the results also showed that the use of bio-based oils can be a promising alternative to synthetic corrosion inhibitors in industries that use aluminumbased materials.
Implementasi Paket Mesin Pengolah Pakan Ternak Limbah Jerami dan Tongkol Jagung Berbasis Ekonomi Sirkular di Sido Makmur I Tulungagung Pratomo, Danang Yugo; Tsamroh, Dewi 'Izzatus; Narmaditya, Bagus Shandy; Saputra, Catur Surya; Prakoso, Bagas Eka; Seftiansyah, Albi Abimanyu
I-Com: Indonesian Community Journal Vol 5 No 4 (2025): I-Com: Indonesian Community Journal (Desember 2025)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v5i4.8079

Abstract

Kegiatan pengabdian ini dilaksanakan di Kelompok Tani “Sido Makmur I” Desa Rejosari, Gondang, Tulungagung. Mitra menghadapi masalah berupa kelebihan limbah tongkol dan jerami jagung, yang menimbulkan tantangan dalam pemanfaatannya. Pengabdian ini bertujuan untuk memanfaatkan kembali limbah tersebut menjadi pakan ternak fermentasi dengan menggunakan mesin pencacah dan pencampur. Metode pelaksanaan meliputi identifikasi masalah, observasi, perancangan alat, manufaktur, pengujian, pelatihan, dan evaluasi. Hasil menunjukkan bahwa mesin-mesin tersebut efektif menghasilkan pakan ternak, dengan kapasitas proses mesin pencacah 50-200 kg/jam dan mesin pencampur 120 kg/jam. Untuk memastikan keberlanjutan, dukungan berkelanjutan mencakup komunikasi untuk pengembangan dan bimbingan berkelanjutan terkait permesinan dan manajemen. Penerapan mesin pengolah limbah jagung telah menyelesaikan permasalahan mitra secara substansial, mendorong pemanfaatan produk sampingan pertanian yang lebih efisien dan bermanfaat bagi masyarakat.
Co-Authors Adhiela Noer Syaief Alan Dwi Wibowo Anggi Anggresita Wulandari Apriani, Rila Rahma Arief RM Akbar Bagus Shandy Narmaditya Baimy Alexander Chintia Dwi Wangsa Kuswardani Dessy Maulidya Maharani Dewi Izzatus Tsamroh Dian Julianto Wahyudi Dian Julianto Wahyudi Ellya, Hikma Feddy Wanditya Setiawan Hartoni Hartoni Imam Muhatrom Imam Muhtarom Imam Muhtarom Linda Rahmawati Majid, Zuliyan Agus Nur Muchlis Mardasari, Octi Rjeky Muhammad Arsad Al Banjari Muhammad Arwani Muhammad Bayu Hendrawan Muhammad Rezki F. Putra Mulyawan, Ronny Nikmatus Sholikha Nur Arief Shalihan Prakoso, Bagas Eka Rabbani, Dzun Nun Septin Renda Rahman, Rifki Zainur Renda Yuriananta Reza Taufiqi Ivana Ridhoni, Wahyu Rohman, Mojibur Rohmanna, Novianti Adi Rusuminto Syahyuniar Saifuddin Karim Saifuddin Karim Saputra, Catur Surya Sari, Nukhak Nufita Seftiansyah, Albi Abimanyu Setiawan, Feddy Wanditya Subekhi, Prido Tamara Rahma Widowati Tesdiq Prigel Kaloka Tjiptady, Bella Usadani, Galuh Bunga Widowati, Tamara Rahma Wulandari, Amelia Dini Yayi Febdia Pradani