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Keselamatan dan Proteksi Baterai Sepeda Motor Listrik: Studi Kasus Analisis Kegagalan Pada Insiden Kebakaran Kapal Motor Penumpang (KMP) Tranship 1 Khrisna, R. Hanggoro Ananta; Yanto; Soewono, Arka Dwinanda
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 2 (2025): Oktober 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i2.6945

Abstract

The adoption of electric motorcycles in Indonesia has seen rapid growth, driven by the push toward a sustainable energy transition. However, battery safety remains a significant concern, particularly with Lithium-ion and Sealed Lead Acid (SLA) battery types. This study aims to analyze the failure mechanisms behind a fire incident on the passenger motor vessel (KMP) Tranship 1, which was allegedly triggered by a Lithium-ion battery from an electric motorcycle lacking an adequate protection system. The analysis employs Fishbone Diagrams and Fault Tree Analysis (FTA), drawing on data from field case studies, evaluations of protection systems in locally manufactured electric motorcycles, and a review of relevant technical literature. The root cause analysis using the Fishbone Diagram identifies several contributing factors to fire risk, including improper usage and charging practices, inadequate transportation methods, extreme environmental conditions, and equipment failure. Findings from the Fault Tree Analysis highlight the critical role of safety components such as fuses, circuit breakers, and ventilation systems in preventing battery-related fires or explosions in electric vehicles. Based on these findings, the study recommends the implementation of multilayered protection systems, the use of standardized chargers, and the development of national regulations aligned with international safety standards. The incorporation of a Battery Management System (BMS) is also strongly recommended to enhance battery safety and reliability.
Pengaruh Struktur Kepemilikan Institusi, Ukuran Perusahaan dan Kebijakan Hutang terhadap Nilai Perusahaan Chiesa Ayu Fahrensy; Yanto; Ade Maya Saraswati; Ayu, Chiesa
Jurnal Ilmiah Manajemen Ekonomi Dan Akuntansi (JIMEA) Vol. 3 No. 1 (2025): November
Publisher : Publikasi Inspirasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/jimea.v3i1.6182

Abstract

Memahami pengaruh struktur kepemilikan institusi (X1), ukuran perusahaan (X2), dan kebijakan hutang (X3) terhadap nilai perusahaan (Y) pada perusahaan subsektor konstruksi yang terdaftar di Bursa Efek Indonesia (BEI) periode 2019–2023 merupakan tujuan utama penelitian ini. Penelitian ini menggunakan metodologi kuantitatif dengan menggunakan data sekunder dari laporan keuangan perusahaan yang bersumber dari idnfinancials.com, situs web perusahaan terkait, dan situs web BEI. Setelah 13 perusahaan dipilih sebagai sampel untuk periode analisis lima tahun, total 65 observasi dilakukan dengan menggunakan teknik purposive sampling. Analisis regresi berganda digunakan untuk menganalisis data penelitian. Hasil penelitian menunjukkan bahwa meskipun kebijakan utang memiliki pengaruh yang kecil terhadap nilai perusahaan, struktur kepemilikan institusional dan ukuran perusahaan memiliki dampak yang cukup besar. Studi ini membantu memahami sejumlah faktor yang dapat meningkatkan nilai perusahaan. Untuk memberikan hasil yang lebih menyeluruh, studi mendatang diharapkan dapat memperluas periode penelitian, menambahkan faktor-faktor baru, dan meningkatkan keragaman sektor subsektor konstruksi bangunan.
Pengaruh Pertumbuhan Perusahaan, Struktur Modal, Likuiditas terhadap Nilai Perusahaan Sisi Annisa Kulsum; Sumardi; Yanto; Kulsum, Sisi annisa
Jurnal Ilmiah Manajemen Ekonomi Dan Akuntansi (JIMEA) Vol. 3 No. 1 (2025): November
Publisher : Publikasi Inspirasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/jimea.v3i1.6191

Abstract

Studi ini memiliki tujuan menguji pengaruh pertumbuhan perusahaan (X1), struktur modal (X2), dan likuiditas (X3) terhadap nilai perusahaan pada subsektor jasa komersial, produk, serta perlengkapan bangunan yang terdaftar di Bursa Efek Indonesia (BEI) selama periode 2019–2024. Fokus penelitian ditujukan agar memahami seberapa jauh ketiga variabel itu memengaruhi nilai perusahaan. Pendekatan penelitian secara metode kuantitatif secara memilih data sekunder berbentuk laporan keuangan tahunan diantara 12 perusahaan yang dipilih melalui teknik purposive sampling. Analisis data dilaksanakan menggunakan regresi linier berganda. Temuan studi mengindikasikan jika ketiga variabel itu berdampak positif serta signifikan terhadap nilai perusahaan, apakah dari parsial ataupun simultan. Hasil ini memvalidasi pengaruh signifikan pertimbangan keuangan internal terhadap sentimen investor. Berdasarkan hasil tersebut, disimpulkan bahwa pengelolaan modal dan likuiditas yang baik merupakan strategi efektif untuk meningkatkan nilai perusahaan. Maka, manajemen mesti menjaga keseimbangan struktur modal serta likuiditas guna mempertahankan daya saing di pasar modal.
Improvement Pada Risk Level Proyek Perbaikan Jalan Aspalt Hotmix Menggunakan Metode Hazard Identification Risk Assessment and Risk Control (HIRARC) Agus Syahabuddin; Yanto; Khasbunalloh
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 4 No. 4 (2025): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v4i4.1246

Abstract

Proyek perbaikan jalan aspal hotmix memiliki berbagai potensi bahaya yang dapat menimbulkan risiko terhadap keselamatan dan kesehatan kerja (K3) serta kelancaran pelaksanaan proyek. Penelitian ini bertujuan untuk mengidentifikasi, menilai, dan mengendalikan risiko pada setiap tahapan pekerjaan menggunakan pendekatan Hazard Identification, Risk Assessment, and Risk Control (HIRARC), yang meliputi identifikasi bahaya, penilaian tingkat risiko berdasarkan kemungkinan dan dampak, serta penerapan langkah pengendalian yang sesuai. Hasil penelitian menunjukkan bahwa risiko tinggi banyak ditemukan pada tahap penghamparan dan pemadatan aspal hotmix, terutama akibat paparan suhu tinggi, pergerakan alat berat, dan kondisi lingkungan kerja yang dinamis. Secara keseluruhan, teridentifikasi 25 potensi bahaya dari 10 aktivitas kerja yang menghasilkan 33 risiko, terdiri atas 8 risiko ekstrem (24,24%), 15 risiko tinggi (45,45%), 8 risiko sedang (24,24%), dan 2 risiko rendah (6,06%), yang mencakup risiko fisik, kimia, ergonomi, dan lingkungan. Setelah penerapan pengendalian teknis dan administratif, seperti penggunaan alat pelindung diri, pengaturan zona kerja, dan briefing keselamatan, tidak lagi ditemukan risiko kategori ekstrem dan tinggi, dengan distribusi risiko berubah menjadi 17 risiko sedang (51,51%) dan 16 risiko rendah (48,48%), serta penurunan kumulatif Risk Rating (RR) dari 278 menjadi 103. Kebaruan penelitian ini terletak pada penerapan HIRARC secara sistematis, komprehensif, dan kuantitatif, yang mampu memetakan risiko secara rinci dan membuktikan efektivitas pengendalian K3 pada pekerjaan hotmix yang berisiko tinggi.
Mapping the English Language Needs of Indonesian Hotel Staff: A Systematic Literature Review Satrio, Indra Bagus; Hustarna; Yanto
IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature Vol. 13 No. 2 (2025): IDEAS: Journal on English Language Teaching and Learning, Linguistics and Lite
Publisher : Universitas Islam Negeri Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/ideas.v13i2.8394

Abstract

Indonesia's hospitality industry has grown over the past decade, increasing demand for English proficiency among hotel staff serving international guests. This systematic literature review synthesizes 7 empirical studies conducted across multiple Indonesian regions (Padang, Sikka, Bandung, Kebumen, and Bali) to examine English language needs of hotel employees from 2018 to early 2025. Using Cooper's seven-stage review framework, studies were selected for relevance to front-office roles, empirical rigor, and alignment with Indonesian hospitality contexts. Results indicate front-line staff prioritize speaking and listening for managing check-in and check-out, explaining services, and resolving complaints, while writing supports email correspondence, reservation forms, and guest documentation. Challenges include limited industry-specific vocabulary, difficulty understanding diverse accents, grammatical inaccuracies in complex exchanges, and low confidence. To mitigate these, employees use reactive strategies like translation apps, code-switching to Indonesian, speech simplification, and contextual inference. Proactive measures include scenario-based role-play exercises, digital ESP modules designed for hospitality contexts, and targeted vocabulary workshops. By systematically consolidating previously fragmented research, this review identifies consistent patterns across geographic contexts and workplace settings, revealing a significant gap between general English instruction and the specialized communicative demands of hotel work. Findings advocate for ESP curricula that integrate authentic hotel materials, simulated guest interactions, and focused vocabulary development. These insights inform educators, ESP curriculum developers, hotel managers, and human resource professionals aiming to enhance service quality and guest satisfaction in Indonesia's tourism sector.
Analysis of Students’ Perceptions of Gender Awareness and Emancipation Through the Use of the Kartini Film as Learning Media in Kolisia Junior High Schools Purwanti, Nani; Yanto; Naro, Antonius M.K
Edukasiana: Jurnal Inovasi Pendidikan Vol. 5 No. 1 (2026)
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/ejip.v5i1.2019

Abstract

This study aims to analyze junior high school students’ perceptions of gender awareness and emancipation through the use of the Kartini film as a learning media. The background of this study is rooted in the limited integration of gender issues in classroom practices and the potential of visual media to bridge this gap. Using a descriptive qualitative approach, the research was conducted at Kolisia Junior High School and involved 21 seventh-grade students through observations and interviews. The Kartini film was utilized in class VII, accompanied by a brief explanation of gender concepts to support students’ understanding. The findings show that most students responded positively. They found it more engaging and easier to comprehend compared to the usual way of learning in class, such as reading or listening to explanations. The film effectively raised students’ gender awareness about the struggles faced by women in the past and inspired discussions on gender equality. However, challenges such as unfamiliar language and the film’s duration were noted by some students. Despite these obstacles, the film proved to be a meaningful tool in encouraging students to reflect on gender roles and equal rights. The study concludes that integrating films into classroom instruction can enhance students’ understanding of social issues and promote gender-sensitive education.
IMPLEMENTASI INTERNET OF THINGS (IoT) DALAM SISTEM PENGONTROLAN SUHU OTOMATIS BERBASIS MIKROKONTROLER PADA ALAT PROOFER UNTUK PENGEMBANG ADONAN ROTI DI UMKM PIZZA OEI OEI AND PATISSERIE Nelson Silitonga; Dian Kurnia; Elvri Melliaty Sitinjak; Sari Farah Dina; Abdillah; Golfrid Gultom; Harmileni; Rycce Sylviana Pratikha; Yanto; Muhammad Iqbal Harapan Muslim Siregar
Journal of Golden Generation Abdimas Vol. 1 No. 2 (2025): Desember : Journal of Golden Generation Abdimas
Publisher : PT. Lembaga Penerbit Penelitian Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65244/jgga.v1i2.398

Abstract

Implementation of Internet of Things (IoT) technology and microcontrollers as an automatic temperature control system on tools for proofing bread dough at the Oei Oei Pizza and Patisserie Micro, Small, and Medium Enterprise (MSMEs). The primary issue faced by partners was temperature instability during the dough fermentation process, leading to inconsistent product quality. The implementation method included problem identification, tool design and construction, implementation at partner locations, and mentoring and evaluation. The results of the activity showed that the tool can help IoT-based systems maintain stable fermentation temperatures, improve dough quality consistency, and increase production efficiency. This initiative also has a positive impact on increasing partners' capacity to utilize appropriate technology.
Kaji Eksperimen Konversi Sepeda Motor Beat 110cc Menjadi Sepeda Motor Plug-in Hybrid Budianto, Hari; Yanto; Soewono, Arka Dwinanda
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 12 No 1 (2026): April 2026
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v12i1.6944

Abstract

The conversion of Internal Combustion Engine (ICE) motorcycles into plug-in hybrids is a practical solution for improving fuel efficiency and reducing exhaust emissions in two-wheeled vehicles. This study aims to present the design of an electric motor powertrain for plug-in hybrids, as well as to measure fuel efficiency and estimate the potential annual reduction in CO₂ emissions. Fuel efficiency testing was conducted through an on-road test using an urban driving scenario. The results showed that converting a 2018 Honda Beat motorcycle to a plug-in hybrid improved fuel efficiency by 21.4%, as indicated by an increased travel distance of 36 km. This improvement in fuel efficiency has the potential to reduce CO₂ emissions by 110.1 kg per year for a single converted motorcycle. Currently, the cost of converting a motorcycle to a plug-in hybrid is IDR 15,950,000. This cost is still higher compared to the incentives currently available from the government, making it a major obstacle in attracting public interest.
PENGARUH PROFITABILITAS, LEVERAGE, LIKUIDITAS, DAN UKURAN PERUSAHAAN TERHADAP AGRESIVITAS PAJAK PADA PERUSAHAAN TRANSPORTASI DAN LOGISTIK YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE 2016-2023 Daffa Shafira Choirunnissa; Dewi Puji Rahayu; Yanto
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Release
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.13476

Abstract

This study aims to analyze the effect of profitability, leverage, liquidity, and firm size on tax aggressiveness in transportation and logistics companies listed on the Indonesia Stock Exchange (IDX) during the 2016–2023 period. This research uses a quantitative approach with a descriptive method. The data used are secondary data obtained from financial statements and annual reports. The data analysis technique employed is multiple linear regression using SPSS version 27.0. The results show that partially, profitability, leverage, and liquidity have a significant effect on tax aggressiveness, while firm size has no significant effect. Simultaneously, all independent variables significantly influence tax aggressiveness. The Adjusted R Square value of 0.347 indicates that the independent variables explain 34.7% of tax aggressiveness, while the remaining 65.3% is influenced by other variables outside the research mod