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All Journal Jurnal Teknologi FLYWHEEL : Jurnal Teknik Mesin Untirta Teknika: Jurnal Sains dan Teknologi Journal of Research and Technology Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) International Journal of Marine Engineering Innovation and Research Bambuti: Bahasa Mandarin dan Kebudayaan Tiongkok Jurnal PkM (Pengabdian kepada Masyarakat) Educivilia: Jurnal Pengabdian Pada Masyarakat Jurnal Sains & Teknologi Fakultas Teknik Universitas Darma Persada Khazanah Sosial
Danny Faturachman, Danny
Darma Persada University, Jakarta
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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Analysis of the Effect of Changes in Pitch Ratio and Number of Blades on Cavitation on CPP Mohammad Danil Arifin; Danny Faturachman; Fanny Octaviani; Karina Adinda Sulaeman
International Journal of Marine Engineering Innovation and Research Vol. 5 No. 4 (2020)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v5i4.5962

Abstract

Cavitation is a detrimental phenomenon to ship operations because it causes many losses. It caused some effects i.e decreased propeller efficiency, damaged propeller material, lower ship speed, vibration, and extreme noises. In that regard, this research conducts cavitation analysis on controllable pitch propeller (CPP) by varying number of blade i.e. 3, 4 and 5 blades; diameter i.e. 30, 40 cm and 50 cm; also pitch i.e 0.4, 0.6 and 0.8. The research method is carried out by the author in this study by conducting a simulation method based on the CFD approach. The simulation process consists of 3 stage-post processor, solver manager, and post-processor. From the simulation based on the CFD approach result, it was found that propeller rotation has an effect on the pressure ratio value. As the propeller rotation increase, the value of the pressure ratio will increase as well. The value of the pressure ratio in propeller design affects the cavitation area that occurs in the propeller. The percentage of the cavitation area on the propeller has an increasing tendency with the number of blades, rotation, and pitch. On the propeller with diameter 300 mm, 3 blades, pitch 0.8 at rotation 125 rpm no indication of cavitation, then it increases to 1.41% at rotation 175 rpm and keeps getting higher at rotation 225 to be 4.22% from total propeller expanding area. Whereas at rotation 225 rpm and pitch 0.4 is 3.38 %, then it becomes 3.85 % at pitch 0.6, which is getting bigger at pitch 0.8 that is 4.22 %.
Influence of Leadership, Loyalty, and Followership on Team Performance of P.T. Gaharu Galangan International Endang Tri Pujiastuti; Hasri Nirmala Budiarti; Karina Adinda Sulaeman; Danny Faturachman; Rini Setiawati
International Journal of Marine Engineering Innovation and Research Vol. 5 No. 2 (2020)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v5i2.6007

Abstract

Many factors are deemed influencing team or group performance. This research identifies influence of variables of leadership, followership and loyalty on team performance. This research is quantitative research on path analysis by using SPSS program. The result is loyalty and followers don’t have direct positive effect on team performance, but through leadership variable as intervening variable. Leadership variable has direct positive effect on team performance and loyalty, and followership variable has direct positive effect on leadership variable.
Competitive Advantage Analysis of Shipyard Companies in Indonesia Resa Nurlaela Anwar; Danny Faturachman; Melani Quintania; Hermin Sirait; Rini Setiawati
International Journal of Marine Engineering Innovation and Research Vol. 5 No. 2 (2020)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v5i2.6011

Abstract

The development of the shipping and shipyard industries in Indonesia over the past ten years has been very slow. Some of the causes, including low productivity and capacity, are the main reasons for this industry's penetration. In addition, the weakening of the national economy as a result of the weakening of the global economy also affected the domestic shipping industry. The competitiveness of the shipping and shipyard industry is influenced by industrial competitiveness and national competitiveness, so that shipyard industry problems must be solved comprehensively, accompanied by strategic and systematic steps in order to be able to compete sustainably. This study aims to analyze the strategies used by several shipping companies and shipyard companies to be able to survive and compete to win and get through severe conditions. This study uses descriptive qualitative method, which is supported by semi-structured interview techniques to obtain the data used in determining the resource person, using a purposive sampling method. The data collected is then tested for validity by using the triangulation of data sources to process the data obtained in developing alternative strategies using SWOT analysis (Strength, Weakness, Opportunities, Threat) In addition to the combination of SWOT methods. The findings of the research results state that all companies carry out defensive strategies so that they are a company that still exists today.
Automatic Identification System (AIS) Data Reliability and Its Implications for Maritime Safety in Indonesia Mohammad Danil Arifin; Muswar Muslim; Fanny Octaviani; Danny Faturachman
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 3 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i3

Abstract

The Automatic Identification System (AIS) is central to vessel monitoring, traffic management, and maritime safety, yet concerns remain regarding its reliability due to incomplete, inaccurate, or delayed reporting. This study assesses AIS data from the Indonesian maritime domain, focusing on four parameters: completeness, accuracy, consistency, and timeliness. AIS records data were preprocessed through data cleaning, filtering, and detection of missing values in static fields such as draught, beam, LOA, deadweight, and gross tonnage (GT). Statistical and spatial-temporal analyses using Python were applied to quantify missing data, identify anomalies, and evaluate reporting intervals. Results show high completeness (97.5%), although missing draught data (6.77%) limited under-keel clearance assessments, while small gaps in beam and LOA affected collision risk modeling and berth allocation. Accuracy was moderate, with invalid speed and course records observed, whereas consistency was excellent, with MMSI and ship names fully aligned. Timeliness proved weakest, with median reporting intervals (8,380 seconds) exceeding IMO standards, restricting real-time navigational use but remaining suitable for long-term monitoring. Overall, AIS in Indonesia is reliable for strategic traffic analysis but insufficient for operational safety management. Strengthening reporting compliance, integrating port and registry databases, and applying anomaly detection and satellite AIS are recommended to enhance maritime safety.
The Intricate Sea Borders of Batam (Indonesia), Tanah Merah (Singapore) and Johor Bahru (Malaysia) Danny Faturachman; Dwi Nugroho
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

this comprehensive report examines the technical specifications of passenger ferries operating in the busy maritime corridor between Batam (Indonesia), Tanah Merah (Singapore), and Johor Bahru (Malaysia), alongside the regulatory frameworks ensuring their safety in international waters. Predominantly high-speed catamarans equipped with waterjet propulsion systems (total power exceeding 4000 kW), these vessels accommodate 150-500 passengers and feature advanced safety systems including SOLAS-compliant life-saving appliances, GMDSS communication, ECDIS navigation, and automated fire suppression. Safety is governed by key IMO conventions such as SOLAS, STCW, and ISM Code, implemented nationally by Singapore's MPA (Merchant Shipping Act), Indonesia's DGST (Law No. 17/2008 on Shipping), and Malaysia's MDM (Merchant Shipping Ordinance 1952). Practical protocols encompass mandatory drills, STCW certified crew training, rigorous port state control inspections under Tokyo MOU, and incident analysis for continuous improvement. While robust oversight minimizes risks in high-traffic straits, challenges like human error and cross-border coordination underscore the need for enhanced trilateral cooperation. Findings highlight a mature safety ecosystem supporting millions of annual passengers, offering insights for nautical science education and policy refinement.
Enhancing Religious Tourism Through Sea Transportation: A Transnational Approach to Batam and Singapore Celerina Dewi Hartati; Danny Faturachman; Yulie Neila Chandra; Gustini Wijayanti
Khazanah Sosial Vol. 7 No. 3 (2025): Khazanah Sosial
Publisher : UIN Sunan Gunung Djati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ks.v7i3.44321

Abstract

Batam City, which is part of the Riau Islands Province, serves as a connecting hub between Indonesia and Singapore. Batam is strategically located in a border area between countries, neighboring one of the world's business centers, Singapore. Therefore, maritime transportation plays a crucial role in a maritime nation like Indonesia. The high intensity of transportation between Batam and Singapore indicates that both cities are tourist destinations. Residents of both Batam and Singapore view these cities as tourist destinations. This study focuses on religious tourism. The high intensity of maritime transportation is particularly evident during weekends and holiday seasons, as many residents of both cities visit each other's locations, which shows the high intensity of social mobilization. This study aims to highlight maritime aspects and their relationship with society through the concept of transnationalism within the framework of tourism, particularly religious tourism. With globalization and the need to expand networks, maritime transportation is essential to support transnational processes. For this reason, maritime safety is vital, as it significantly influences efforts toward sustainable development, especially in maritime transportation activities that support tourism.
Application of Solar Energy for Coconut Grating Machine in Rural Areas Husen Asbanu; Yendi Esye; Yefri Chan; Danny Faturachman
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1767-1777

Abstract

Manual processing of coconut and the expensive gasoline force farmers to sell copra at low prices. This study explores the potential use of solar energy for operating coconut grating machines. The experiment utilized a 100 Wp solar panel to run a coconut grating machine driven using ¼ HP electric motor. The observation parameters included solar irradiance, power, voltage, current, battery charging duration, and energy efficiency. The results indicate that a 100 Wp solar panel is insufficient to meet the power requirements of the 186 W electric motor. Therefore, adding at least two solar panels and increasing the battery capacity must meet the machine's operational requirements. The battery charging time, until complete, is recorded at 16 h. Without the support of solar panels, the battery can operate the machine for 3 to 4 h. Meanwhile, when the battery is recharged while the machine operates with the solar panel system, the operating duration can reach 6 to 7 h. Therefore, solar energy demonstrates great potential as a renewable energy solution that can be utilized in the agricultural processing process in rural areas in a sustainable and environmentally friendly manner. Testing of the coconut grating machine powered by solar energy, supported by a 12V 100Ah battery and a 1/4 HP motor, showed that it can operate for approximately 3.8 h in a single work cycle. With a grating duration of 2.6 min per coconut, the system can grate up to approximately 87 coconuts per operational cycle.
Determination of Ship Accident Risk in Indonesia: Contribution of Crew Member Competence and Job Stress Through Safety Culture Moderated by Communication Effectivity and Supervision Danny Faturachman; Edi Abdurachman; Prasadja Ricardianto; Siti Maemunah
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

Abstract

this paper investigates how human factor variables determine ship accident risk in Indonesian domestic shipping. Drawing on accident investigation reports and international literature, the study proposes and tests a structural model linking deck crew competence, supervisory quality, and work stress to perceived ship accident risk, with safety culture as an intervening variable and work stress and competence as moderators. National data from Indonesia’s National Transportation Safety Committee (KNKT) for 2020–2025 indicate that human error remains the dominant contributing factor in marine accidents, with high fatality rates despite the implementation of SOLAS, STCW, and the ISM Code. Relevant studies confirm that inadequate training, fatigue, miscommunication, and weak supervision are among the most critical contributors to marine casualties. A quantitative survey will be conducted among Indonesian seafarers working on domestic Roro ferries and passenger/ cargo vessels, focusing on major inter-island routes. The proposal model will be tested using Partial Least Square–Structure Equation Modelling (SEM) to assess direct, indirect, and moderating effects of competence and job stress on the relationship between safety culture and perceived accident risk. The expected contribution is twofold: theoretically, it integrates Human Factor Analysis and Classification System (HFACS) Maritime and safety culture perspectives into a comprehensive human factor risk perception framework tailored to an archipelagic developing country; practically, it provides evidence=based insights for regulators and shipping companies regarding priority interventions in crew training, work-rest scheduling, supervision, and safety culture development.
Pelatihan Penguasaan Kosakata Bahasa Inggris melalui Media Visual dan Interaktif Bagi Tutor Siswa SD Dan SMP di Komunitas Kampung Bojong Yoga Pratama; Suranto; Fridolini; Nurul Fitriani; Danny Faturachman; Bambang Trisno Adi; Rusydi M. Yusuf; Alia Afiyati; Karina Adinda
Educivilia: Jurnal Pengabdian pada Masyarakat Vol. 7 No. 2 (2026): Educivilia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ejpm.v7i2.21368

Abstract

Program pengabdian masyarakat ini bertujuan untuk meningkatkan penguasaan kosakata bahasa Inggris bagi tutor yang mengajar siswa Sekolah Dasar (SD) dan Sekolah Menengah Pertama (SMP) di komunitas Kampung Bojong melalui penggunaan media visual dan interaktif. Lembaga pendidikan nonformal, Lembaga Sosial Gerakan Masyarakat Peduli (LSGMP), menghadapi tantangan berupa keterbatasan sumber daya pengajaran dan metode pembelajaran yang konvensional, sehingga berdampak pada kualitas pembelajaran bahasa Inggris. Program ini melibatkan 10 tutor dan menggabungkan ceramah, demonstrasi, serta praktik langsung menggunakan alat multimedia seperti flashcards, video, dan aplikasi desain Canva. Model pelaksanaan mengadopsi prinsip pembelajaran aktif, teori konstruktivisme, pembelajaran multimedia, dan experiential learning untuk meningkatkan keterlibatan dan kompetensi tutor. Hasil menunjukkan peningkatan signifikan dalam penguasaan kosakata tutor dengan rata-rata kenaikan nilai sebesar 30,6% dari pre-test ke post-test. Para tutor juga melaporkan peningkatan rasa percaya diri dan kreativitas dalam menyusun materi pembelajaran, sehingga menciptakan lingkungan belajar yang lebih menarik dan efektif bagi siswa. Studi ini menegaskan bahwa pemberdayaan tutor dengan keterampilan menggunakan media visual dan interaktif dapat meningkatkan kualitas pengajaran kosakata dan motivasi belajar siswa di lingkungan pendidikan yang terbatas sumber daya.
Pengabdian Masyarakat Internasional Cross-cultural Event Antara Kanto Gakuin University dan Universitas Darma Persada Yoga Pratama; Syarif Hidayat; Suranto; Juliansyah; Nurul Fitriani; Eka Yuniar Ernawati; Fridolini; Alia Afiyati; Agustinus Hariyana; Danny Faturachman
Educivilia: Jurnal Pengabdian pada Masyarakat Vol. 6 No. 2 (2025): Educivilia: Jurnal Pengabdian pada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ejpm.v6i2.18531

Abstract

Penelitian ini menjabarkan pengalaman mahasiswa yang berpartisipasi dalam program pertukaran budaya antara Universitas Darma Persada (UNSADA) dan Kanto Gakuin University (KGU) pada tahun 2025. Dengan menggunakan pendekatan partisipatif, penelitian ini mengeksplorasi manfaat, tantangan, dan hasil dari interaksi lintas budaya dalam konteks akademik. Data dikumpulkan melalui diskusi kelompok terfokus (FGD), observasi partisipatif, dan catatan reflektif dari 20 mahasiswa UNSADA dan 5 mahasiswa KGU. Temuan penelitian menunjukkan bahwa program ini secara signifikan meningkatkan keterampilan komunikasi lintas budaya, kesadaran global, dan wawasan akademik mahasiswa. Tantangan seperti kecemasan budaya (culture shock) dan hambatan bahasa diidentifikasi, namun berhasil diatasi melalui dukungan institusi dan kolaborasi antar mahasiswa. Program ini berhasil menciptakan lingkungan yang inklusif, mempromosikan saling pengertian dan toleransi di antara peserta. Penelitian ini menegaskan pentingnya program pertukaran budaya dalam pendidikan tinggi sebagai sarana untuk mempersiapkan mahasiswa menghadapi dunia yang semakin global dan menyarankan bahwa inisiatif semacam ini dapat menjadi model untuk kerja sama internasional di masa depan.
Co-Authors Achmad Djaeni Achmad Djaeni ADE SUPRIATNA Agung Sudrajad Agustinus Hariyana Aldyn Clinton Partahi Oloan Alia Afiyati Bambang Trisno Adi Chandra, Yulie Neila Dasmo Dasmo Dwi Nugroho Edi Abdurachman Eka Yuniar Ernawati Endang Tri Pujiastuti Erwin Fanny Octaviani Febi Nur Biduri Fridolini, Fridolini Gustini Wijayanti Hartati, Celerina Dewi Hasri Nirmala Budiarti Hin Goan Gunawan Husen Asbanu Husen Asbanu Juliansyah Karina A. Sulaeman Karina Adinda Karina Adinda Sulaeman Lenardo, Yovi Melani Quintania Mohammad Danil Arifin Muswar Muslim Nurul Fitriani Prasadja Ricardianto Pratama, Yoga Rahardja, Istianto Budhi Resa Nurlaela Anwar Rini Setiawati Rini Setiawati Rini Setiawati Rusydi Muhammad Yusuf Shahrin Febrian Sirait, Hermin Siti Maemunah Suranto Syarif Hidayat yefri chan Yefri Chan Yendi Esye Yendi Esye Yoga Pratama