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All Journal International Journal of Electrical and Computer Engineering Jurnal Teknoin Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Perikanan dan Kelautan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature Jurnal Ilmu Pangan dan Hasil Pertanian Jurnal Obsesi: Jurnal Pendidikan Anak Usia Dini INDONESIAN JOURNAL OF APPLIED PHYSICS Syntax Literate: Jurnal Ilmiah Indonesia Conference SENATIK STT Adisutjipto Yogyakarta JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Radioterapi & Onkologi Indonesia Ensiklopedia of Journal YUME : Journal of Management Journal of Humanities and Social Studies Koneksi Jurnal Onoma: Pendidikan, Bahasa, dan Sastra Review of Primary Care Practice and Education (Kajian Praktik dan Pendidikan Layanan Primer) Jurnal Teknologi Informasi, Komputer, dan Aplikasinya (JTIKA ) Amalee: Indonesian Journal of Community Research & Engagement Asian Journal of Aquatic Sciences Community Development Journal: Jurnal Pengabdian Masyarakat Automata Jurnal Pengabdian kepada Masyarakat Nusantara Akrab Juara : Jurnal Ilmu-ilmu Sosial International Journal of Marketing and Human Resource Research Jurnal Interprof International Journal of Engagement and Empowerment (IJE2) Journal of Rural and Urban Community Empowerment Journal Peqguruang: Conference Series MASTER: Jurnal Manajemen Strategik Kewirausahaan eScience Humanity Journal Jurnal Nasional Teknik Elektro dan Teknologi Informasi JAMBURA: JURNAL ILMIAH MANAJEMEN DAN BISNIS Jurnal Informatika Teknologi dan Sains (Jinteks) Jurnal Ilmu-Ilmu Kehutanan Millah: Journal of Religious Studies International Journal of Educational Research Excellence (IJERE) International Journal of Community Service (IJCS) Jurnal Sosial dan Sains Journal of Artificial Intelligence and Digital Business Innovative: Journal Of Social Science Research JURNAL PENGABDIAN KEPADA MASYARAKAT (ADI DHARMA) Metalurgi In Theos : Jurnal Pendidikan dan Teologi Multifinance Jurnal Media Fisioterapi Poltekkes Kemenkes Makassar Proceeding Of International Conference On Education, Society And Humanity Jurnal Perikanan dan Kelautan TENANG : Teknologi, Edukasi, dan Pengabdian Multidisiplin Nusantara Gemilang Edukatif: Jurnal Pengabdian Masyarakat Jurnal Cendekia Ilmiah Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi MACROCEPHALON : Jurnal Ilmu Peternakan
Hendrik Hendrik
Jurusan Informatika, Universitas Islam Indonesia
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Analysis of Fishing Business Using Gill Net Fishing Gear in Bogak Village, Tanjung Tiram District, Batu Bara Regency, North Sumatra Province Hendrik, Hendrik; Yanti, Chicka Willy; Silitonga, Rahmi Julita Hotmaria Br.
Jurnal Perikanan dan Kelautan Vol. 30 No. 3 (2025): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.3.312-318

Abstract

The majority of the population of Bogak Village works as fishermen, with 76% of them involved in fishing. The dominant fishing gear used is gill nets, with a total of 500 units. This study was conducted in Bogak Village in 2023 to determine the investment spent by fishermen, the total costs, income, and profits they obtain, and to analyze the feasibility of fishing efforts using gill nets. This research method is a survey method with 21 fishermen as respondents. The results indicate two criteria for the type of fishing business: using 5 GT and 10 GT fleets. The investment for a 5 GT fleet is IDR 78,991,375.00, while a 10 GT fleet costs IDR 232,150,972.22. The total cost of the 5 GT fleet is IDR 525,031,138.89 / year, and the 10 GT fleet is IDR 776,833,809.52 / year. The income of the 5 GT fleet is IDR 581,760,000.00/year, and the 10 GT fleet is IDR 904,106,666.67/year. The profit of the 5 GT fleet is IDR56,728,861.11/year, and the 10 GT fleet is IDR127,272,857.14/year. Based on the feasibility analysis of the gillnet fishing business, both fleet sizes (5 GT and 10 GT) have proven to be profitable with an R/C value above 1. This indicates that the company is feasible to continue and develop. Overall, investing in a larger fleet provides more promising economic prospects for fishermen
Experimental comparison of air, oil, and liquid nitrogen cooling media on the efficiency of a single-phase transformer Nugraha, Heri; Imaduddin, Agung; Priandana, Eka Rakhman; Hermawan, Asep Dadan; Darsono, Nono; Pramono, Andika Widya; Syahid, Adi Noer; Palaloi, Sudirman; Herbirowo, Satrio; Hendrik, Hendrik
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 1: February 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i1.pp25-35

Abstract

Transformers are critical component in electric power system, where minimizing energy losses is essential for efficiency and reliability. While ideal transformers operate with zero losses, practical transformers dissipate energy through winding and core losses caused by resistive heating. This study investigates the impact of three cooling media with ambient air, mineral oil, and liquid nitrogen on the efficiency and thermal performance of a 1 kVA single phase copper wound transformer. The experiment applied a resistive load under each cooling condition, recording input and output parameters using a HIOKI power meter model PW3360. Thermal behavior was monitored using infrared thermography and thermocouples. Copper winding resistivity was evaluated using a four-point probe within a cryogenic magnet system. The results show that liquid nitrogen cooling significantly reduced copper resistivity due to low-temperature conditions, achieving a transformer efficiency of 89.9%. Oil cooling improved efficiency to 86.0%, compared to 80.7% with air cooling. Although liquid nitrogen provided the greatest efficiency enhancement, its practical use is limited due to handling complexity and cost. In contrast, oil cooling offers a more feasible and effective solution for improving transformer performance in real world applications. These finding provide valuable insight for optimizing transformer thermal management strategies in power systems.
Analisis Penyusunan dan Realisasi Anggaran Bahan Baku (Studi Kasus Pada PT ISM) Hendrik, Hendrik; Sarania, Laura; Meidina, Indira; Tamba, Wilton; Safuan, Safuan
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.6238

Abstract

Anggaran bahan baku memiliki peranan penting dalam mendukung kelancaran proses produksi serta pengendalian biaya pada perusahaan manufaktur. PT ISM sebagai perusahaan yang bergerak di sektor industri makanan dan minuman dengan skala produksi besar sangat bergantung pada ketepatan penyusunan dan realisasi anggaran bahan baku agar kegiatan operasional berjalan secara optimal. Penelitian ini bertujuan untuk menganalisis proses penyusunan anggaran bahan baku di PT ISM, membandingkan antara anggaran dengan realisasi pemakaian bahan baku, mengidentifikasi faktor-faktor penyebab terjadinya selisih, serta mengevaluasi efektivitas penggunaan anggaran bahan baku dalam mendukung efisiensi produksi dan pengendalian biaya perusahaan. Metode penelitian yang digunakan adalah penelitian deskriptif dengan pendekatan kualitatif dan kuantitatif ringan. Data yang digunakan merupakan data sekunder yang diperoleh dari laporan keuangan, laporan persediaan bahan baku, serta publikasi resmi PT ISM yang relevan dengan kebutuhan penelitian. Teknik analisis data dilakukan melalui perhitungan pemakaian bahan baku, perbandingan antara anggaran dan realisasi, serta analisis selisih yang mencakup selisih harga dan selisih kuantitas bahan baku. Dengan metode tersebut, penelitian dapat memberikan gambaran mengenai tingkat ketepatan penyusunan anggaran dan sejauh mana realisasi pemakaian bahan baku sesuai dengan rencana yang telah ditetapkan perusahaan. Hasil penelitian menunjukkan bahwa terdapat selisih antara anggaran dan realisasi bahan baku, baik selisih yang bersifat menguntungkan (favorable) maupun selisih yang bersifat tidak menguntungkan (unfavorable). Selisih tersebut terutama disebabkan oleh perbedaan kuantitas pemakaian bahan baku dalam proses produksi, perubahan kebutuhan produksi, serta faktor efisiensi yang terjadi selama kegiatan operasional berlangsung.
Pengaruh Doping Nikel dan Suhu Sinter pada Pembuatan Kawat Superkonduktor Magnesium Diborida Herbirowo, Satrio; Hanafi, M Nur; Imaduddin, Agung; Utomo, Edy Priyanto; Hendrik, Hendrik; Trenggono, Aditya; Yustanti, Erlina
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 10, No 2 (2020): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v10i2.34984

Abstract

Peningkatan sifat superkonduktor MgB2 melalui penambahan doping telah banyak dilakukan. Meskipun begitu, pembuatan kawat superkonduktor MgB2  belum secara optimal dihasilkan akibat porositas yang terbentuk dari struktur lapis MgB2. Tujuan penelitian ini adalah untuk menganalisis efek penambahan doping nikel terhadap nilai kristalinitas dan kepadatan serta temperatur optimum dalam sintesis kawat superkonduktor berbasis MgB2. Variabel proses pada sampel yang digunakan yaitu variasi persen berat doping Nikel dan temperatur sintering. Karakterisasi   yang   digunakan   meliputi   Xray   Diffraction   (XRD),   Scanning   Electron Micoscope-Energy Dispersive Spectroscopy (SEM-EDS), dan Cryogenic Magnet. Pembuatannya menggunakan proses metalurgi serbuk dengan metode powder in tube secara in-situ dan manufaktur pengerolan kawat. Pengerolan dilakukan reduksi ukuran diameter 6 mm menjadi 4 mm, serta panjang awalnya 10 cm menjadi ±26 cm. Dari hasil XRD menunjukkan bahwa sampel dengan doping nikel menghasilkan fasa primer MgB2  dan fasa sekunder MgNi2.5B2  serta beberapa pengotor (MgO dan Mg) dengan ukuran kristalit lebih meningkat dibandingkan MgB2 tanpa doping. Dari gambar SEM, sampel tampak menunjukkan penurunan jumlah porositasnya. Sampel yang disinter 750°C merupakan temperatur optimal dalam  mensintesis superkonduktor MgB2   yang  didoping nikel  karena  memiliki  Tc  onset tertinggi sebesar 42,53 K dan porositas terendah pada pendopingan nikel sebesar 20 persen berat yaitu sebesar 13,5% porositas.
Co-Authors AA Sudharmawan, AA Aat Ruchiat Nugraha Abdul Aziz Aco Tang Aditya Trenggono, Aditya Afandy, Muhammad Agung Imaduddin, Agung Ahmad, Hasnia Ajizah, Nur Akbar, Ari Yustisia Alfitri Alfitri Ali, Makhrus Amalia, Inda Amir Bagja Andi Harmoko Arifin Andika Widya Pramono Andoko, Dewanto Andriati, Novi Andry Stepahnie Titing Anshoriyah, Sofiyatul Anton PW Nomleni Ardiansyah, Rio Ardiyan Saptawan Arpandjam'an arpandjam'an, arpandjam'an Arpandjaman, Arpandjaman Asiati, Diah Isnaini Asmita Christiany Kombong Atika, Amelia Auliah, Rezki Aulizar Arfan Awan Santosa Baso Intang Sappaile, Baso Intang Bayu Herdianto Cahyono, Andhik Budi Cahyono, Andhik Budi Chicka Willy Yanti Cintia Marendeng, Olivia Ciptasari, Nurhayati Indah Clara Yolandika Daniel Pasaribu Daud Yusuf Deglas, Welly Deni Ahmad Jakaria Desak Eka Susianawati Diah Fatma Sjoraida Dimas Fajar Imanto Durahim, Darwis Elfrida Ratnawati Eliza, Detha Fadhlan Failusuf Salam Fareski, Fahri Febriana, Eni Fernando, Putri Deniya Firman Nugroho Fitri Kumalasari, Fitri Fredy Saputra, M. Khalid Galuh Hartinah Gazali Lembah Guna, Bucky Wibawa Karya Hakim, Supartina Hanafi, M Nur Hanif Hanif Hannan, Sjuaib Harahap, Stepandi Hasbiah Hasbiah, Hasbiah Hastiani -, Hastiani Haulah, Suci Hazmi, Arief Heri Nugraha Hermawan, Asep Dadan Hery Widijanto Hutasuhut, Wilda Rizkiyah Ilwandri, Ilwandri Insani, Fahrul Irving Vitra Paputungan Irwan Novianto Islam, Fahrul Isro’iyah, Latifatul Izzeti, Nadira Juli Jamnasi Juniati Juniati Junita Fabanjo, Ivonne Kalemben, Estevani Khaeril, Khaeril Lalli, Linda Lamun Bathara Lexy Kareba Liliana Puspa Sari Lunatri, Andi M. Nurul Wathani Madehang, Madehang Mahdi, Nurzakia Malau, Ira Mawar Marchelina Rante Mardiana Panggabean, Ellis Martin Martin Ma’arif, Ahmad Fahruddin Meidina, Indira Millati, Rida' Milliana Moh Tahhir Moningkey, Shirley Moureen, Moureen Muhamad Stiadi Munthe, Desi Natalia Nasution, Tio Afandi Nasution, Tio Affandi Nengyanti Nengyanti, Nengyanti Niar Astaginy Niluh Desy Purnamasari Nono Darsono, Nono Novi Wahyu Hidayati, Novi Wahyu Nur Hidayati Nur Kholis Nur Kholis Nurhayati Usman NURUL ANNISA Pakpahan, emma martina Pararuk, Ririn Lestari Parmi, Parmi Prasetyo, Agus Budi priandana, eka rakhman Pristi Sahida, Adelia Octora Putri Anggraeni R. Teduh Dirgahayu Rahmad Subekti Rahmaditullah, Rahmaditullah Ramba , Yonathan Ramba, Yonathan Rara' Damba, Mitra Ridar Hendri Rismawati, Dea Rizki, Hafizri Deni Rizky, Hafizri Deni RR. Ella Evrita Hestiandari Safuan Safuan Salsabila Purnamasari Santosa, Tomi Apra Sarania, Laura Satrio Herbirowo, Satrio Sefrin Siang Tangkearung Setiaji, Hari Shafira Syakhnur Silaban, Yunita Feronika Br. Silitonga, Rahmi Julita Hotmaria Br. Silitubun, Evaristus Sitorus, Jenti Sjroida, Diah Fatma Soeryani, R Wianti Soesaptri Oediyani Sri Endang Kornita SRI RAHAYU Sudibio, Sudibio sudirman palaloi Sudirman Sudirman Sugiarti, Viki Sumanik, Ermi Dikta Supirno, Supirno Susanna Vonny N. Rante Susanto, Yohanes Sutrisnawati, Ika Suwardiman, Suwardiman Suwarno, Tri Syahid, Adi Noer Tadius Tamba, Orita Nadia Tamba, Wilton Tanga, Irma Yanti Teady Matius Surya Mulyana, Teady Matius Teduh Dirgahayu Teduh Dirgahayu Tince Sofyani Tititing, Andri Stepahnie Tongam E Panggabean Topanus Tulak Tulak, Harmelia Ufira Isbah Ulfa Amalia Nur Fatimah Unggul Priyadi Utami, Kurniati Dwi Utami, Lusia Savitri Setyo Utomo, Edy Priyanto Veli Sungono Wahyu Mayangsari Windarsyah Windarsyah Wisran Wiwik Handayani Yanti Andriani, Neneng Yeoh, Rudiyo Yudomustafa, Fakhruddin Yulianda, Eni Yuslinda, Yuslinda Yustanti, Erlina Zaenul Amri Zulkarnain Zulkarnain