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All Journal Khasanah Ilmu - Jurnal Pariwisata Dan Budaya JKIE (Journal Knowledge Industrial Engineering) Jurnal Penelitian Manajemen Terapan (Penataran) JIM (Jurnal Ilmu Manajemen) juremi: jurnal riset ekonomi Jurnal Lex Suprema Justness : Jurnal Hukum Politik dan Agama Journal of Innovation Research and Knowledge Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Sosial dan Sains Jember Medical Journal (JMJ) Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Journal of Transportation and Society Empowerment Al-Usariyah: Jurnal Hukum Keluarga Islam Jurnal Ilmiah Multidisiplin Keilmuan Mandira Cendikia (JIMK-MC) Indonesian Journal of Marine Engineering Business, Entrepreneurship, and Management Journal Policy and Law Journal
Samsul Huda
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy 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 Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Perancangan Dual Axis Solar Tracker Guna Efesiensi Panel Surya di Atas Kapal Dhimas Bayu Kuncoro; Diana Alia; Teguh Pribadi; Edi Kurniawan; Samsul Huda
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7667

Abstract

This study aims to design and test a Dual Axis Solar Tracker to improve the energy absorption efficiency of solar panels on ships. The system is designed with a two-axis movement mechanism (horizontal and vertical) using a linear actuator motor controlled by Arduino Nano and ESP32. Testing was conducted on a 20 WP solar panel in Surabaya for 30 days, divided into three methods: 10 days using an LDR sensor, 10 days using an RTC, and 10 days in static conditions without a sensor. Voltage, current, and power data were measured every 30 minutes at 07.00–17.00 WIB. The test results show that the RTC method provides the highest and most stable output power, according to the sun's movement patterns in tropical areas, while the LDR method responds quickly to changes in light intensity but is less stable in changing weather. Static installation produces the lowest power. This system is able to maintain the panel orientation perpendicular to the sun's rays, thus increasing energy efficiency compared to static systems. These findings prove that dual-axis solar tracker technology, especially with an RTC sensor, is effective in dynamic maritime environments and can be a practical solution for optimizing renewable energy on ships. The most effective results using RTC sensors demonstrated the most stable and high power output, especially since the sun in tropical areas like Surabaya moves fairly consistently following a cyclical pattern. The success of this system not only increases the energy output of solar panels but also provides a practical solution for renewable energy applications in tropical climates.
THEMATIC ANALYSIS OF SHARIA STOCK PORTFOLIO DIVERSIFICATION AND FINANCIAL RATIOS: A CONCEPTUAL STUDY BASED ON THE INDONESIAN SHARIA STOCK INDEX (ISSI) Samsul Huda; Mohammad Anis Sumadi; Ashlihah; Binti Nur Asiyah; Muhammad Aswad
BEMJ: Business, Entrepreneurship, and Management Journal Vol. 4 No. 2 (2025)
Publisher : Universitas Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36563/bemj.v4i2.1953

Abstract

Indonesia’s sharia capital market, represented by the Indonesian Sharia Stock Index (ISSI), has shown rapid growth; however, sharia stock portfolio diversification practices and the use of financial ratios for profit optimization have not yet been applied systematically by investors. This study aims to thematically analyze various sharia stock portfolio diversification strategies and to explain the role of financial ratios in shaping an optimal portfolio based on issuers included in the ISSI. The method employed is a qualitative approach with a conceptual study design, using content analysis and thematic coding of secondary data sources, including journal articles, Islamic investment management books, Financial Services Authority (OJK) regulations, DSN MUI fatwas relevant to the sharia capital market, and official reports and documents related to the ISSI. The analysis identifies several main themes: diversification strategies based on sector and market capitalization, cross-instrument diversification within sharia assets, and strengthened risk management through stock selection grounded in profitability, leverage, liquidity, and valuation ratios. These findings indicate that integrating portfolio diversification strategies with the appropriate use of financial ratios has the potential to enhance returns on sharia stock portfolios while keeping risk within acceptable limits, thereby offering a conceptual contribution to the development of ISSI based sharia investment strategies.
Analisis Penggunaan Butterworth pada Saat Proses Tank Cleaning Di MT. Marina Prospeirty Kharisma Maula Aditya Basri; A.A Ngurah Ade Dwi Putra Yuda; Dian Junita Arisusanty; Samsul Huda
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 2 (2026): : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i2.8430

Abstract

This research is motivated by the importance tank cleaning process on tankers to prevent cargo contamination, maintain cargo quality, and ensure crew safety. MT. Marina Prosperity, a chemical/oil tanker, uses the Butterworth system as the primary method for tank cleaning at every cargo change. However, in practice, technical and operational constraints are still found that affect the results of tank cleaning. The research method used is descriptive qualitative with data collection techniques through direct observation on the ship, interviews with the Chief Officer and Boatswain, and documentation studies in the form of log books and SOPs. Data were analyzed by focusing on three aspects, namely work efficiency, work safety, and operational procedures for using Butterworth. The results show that the use of Butterworth can increase time and energy efficiency compared to manual methods, with an average cleaning time of 2–4 hours per tank depending on the type of cargo. From a safety aspect, Butterworth reduces the need for crew to enter the tank, thereby reducing the risk of exposure to chemicals and hazardous atmospheres. However, work effectiveness and safety are greatly influenced by the condition of the equipment, the stability of water pressure, and the crew's discipline in implementing the SOP. On several occasions, steps such as nozzle cleaning, manual mopping, and safety meetings were not consistently performed, resulting in residual load in certain areas. With routine equipment maintenance, close supervision, and ongoing crew training, Butterworth can be optimized to produce more effective, safe, and standards-compliant tank cleaning process.
Studi Penanganan Tindak Pidana Hukum Di Kantor Advokat Agung Choirul Muzaky; Syahrul Hafidul Anwar; Samsul Huda
Jurnal Ilmiah Multidisiplin Keilmuan Mandira Cendikia Vol. 4 No. 4 (2026)
Publisher : Yayasan Pendidikan Mandira Cendikia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70570/jimkmc.v4i4.2201

Abstract

Penelitian ini bertujuan untuk menganalisis proses penanganan tindak pidana yang dilakukan di kantor advokat serta peran advokat dalam memberikan bantuan hukum kepada klien. Advokat memiliki peran penting dalam sistem peradilan pidana, terutama dalam memberikan pendampingan hukum, perlindungan hak-hak tersangka atau terdakwa, serta memastikan proses hukum berjalan sesuai dengan ketentuan peraturan perundang-undangan. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian hukum empiris dengan pendekatan deskriptif kualitatif. Data diperoleh melalui observasi, wawancara, serta studi dokumentasi yang berkaitan dengan praktik penanganan perkara pidana di kantor advokat. Hasil penelitian menunjukkan bahwa penanganan tindak pidana di kantor advokat meliputi beberapa tahapan, yaitu konsultasi hukum dengan klien, pengumpulan dan analisis bukti, pendampingan pada tahap penyidikan di kepolisian, hingga proses persidangan di pengadilan. Selain itu, advokat juga berperan dalam memberikan strategi pembelaan yang bertujuan untuk melindungi hak-hak klien serta memperoleh putusan yang adil. Dengan demikian, keberadaan advokat sangat penting dalam menjamin tegaknya keadilan dan perlindungan hukum bagi masyarakat yang berhadapan dengan hukum
Co-Authors A.A Ngurah Ade Dwi Putra Yuda admin admin, admin Agung Choirul Muzaky Ali Munib Alia, Diana Anis Fitria Ardhiana Puspitacandri Arisusanty, Dian Junita Ashlihah Bayu Kasa Pranata Bayu Setiono Binti Nur Asiyah Dhimas Bayu Kuncoro Didik Dwi Suharso Edi Kurniawan Erlin Iriani Erliyani, Dian Ferdi Rohmi Saputra Firdaus Sitepu Hasan Basri Indah Saraswati Julviakmal Ilham Firmanda Kharisma Maula Aditya Basri Khoiruddin, Mukhammad Arif Hadi M. Masrifan Misbach Munir Mohammad Anis Sumadi Muh. Bahrul Ilmi Khoiruddin MUHAMAD DLUHA Muhammad Aswad Muhammad Syahrul Muharom Putri Qomariyah Dewi Kumala R. Jati Nurcahyo Rita Alfin Rudi Cahyono Septiana Sawitri Dewi Siti Aminatus Sa’diyah Siti Sunrowiyati Sofiatur Rohmah Sonhaji *), Ferra Ika Wardani Solechan Syahrul Hafidul Anwar T. KUNCORO T.KUNCORO Teguh Pribadi Trisnowati Rahayu Yudi Santoso, Yudi Zakaria Ali Kuddah