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All Journal Prosiding SNITP (Seminar Nasional Inovasi Teknologi Penerbangan) TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Horizon: Indonesian Journal of Multidisciplinary
Sakti, Gunawan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences Transportation Other

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IMPLEMENTASI MODIFIKASI BOOST KONVENTER DC-DC TOPOLOGI SEPIC PADA PROTOTIPE PEMBANGKIT LISTRIK TENAGA SURYA DILENGKAPI SISTEM MONITORING ARUS DAN TEGANGAN BERBASIS INTERNET OF THINGS DI BANDAR UDARA TANJUNG REDEP KALIMARAU BERAU Pramesti, Ulfiana Dyah; Yunior, Yudhis Tiro Kabul; Sakti, Gunawan
Prosiding SNITP (Seminar Nasional Inovasi Teknologi Penerbangan) Vol. 8 No. 1 (2024): SNITP 2024
Publisher : Politeknik Penerbangan Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46491/snitp.v8i1.1958

Abstract

Perancangan sistem monitoring PLTS yang terhubung pada beban, diperlukan beberapa komponen salah satunya konverter DC-DC. Konverter ini digunakan untuk meningkatkan tegangan keluaran panel surya. Penggunaan konverter DC-DC membutuhkan peningkatan tegangan keluaran photovoltaic yang tinggi dan memperoleh efisiensi konversi yang tinggi. Pada penelitian ini dilakukan modifikasi pada boost konverter konvensional. Modifikasi dilakukan dengan penambahan diode dan kapasitor sebagai rangkaian pengganda tegangan. Hasil dari modifikasi dapat menaikkan tegangan 8 kali tegangan masukan. Modifikasi boost konverter DC-DC Topologi SEPIC diimplementasikan di Bandar Udara Tanjung Redep Kalimarau Berau. Pada bandara tersebut memiliki PLTS berkapasitas 540 KWP. Monitoring yang dilakukan pada PLTS bandara ini masihh dilakukan secara manual yaitu dengan melihat display monitor yang terletak pada inverternya. Hal ini membutuhkan beberapa waktu untuk melihatnya. Oleh karena itu penerapan monitoring dan modifikasi boost konverter DC-DC topologi SEPIC mempermudah dalam pemantauan PLTS dan dapat memaksimalkan gain yang tinggi sebelum masuk pada konverter.
Pengembangan Keterampilan Las Listrik SMAW Pada Siswa Sekolah Menengah Kejuruan (SMK) Di Workshop Politeknik Penerbangan Surabaya Prayitno, Hadi; Bahrawi, Ahmad; Suyatmo; Wirawan, Willy Artha; Sakti, Gunawan; Pambudiyanto, Nyaris; Wulansari, Ajeng
TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Vol. 4 No. 2 (2024): TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat
Publisher : Fakultas Teknik, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tekiba.v4i2.4667

Abstract

This study aims to achieve several results that contribute to improving the community's ability regarding welding techniques that are currently in great demand by various industries. The method used is a qualitative method with observation used to understand in depth how SMAW (Shielded Metal Arc Welding) electric welding skills are developed in vocational high school students. The sample in this study was the Community Service Activity Implementation Team for the Development of SMAW Electric Welding Skills for Vocational High School (SMK) Students at the Surabaya Aviation Polytechnic Workshop in the 2024 Fiscal Year consisting of 16 people, the results of the study showed that the Development of SMAW Electric Welding Skills has improved the abilities of students of SMK Penerbangan AAG Yogyakarta, SMK Penerbangan Angkasa Lanud Iswahjudi Magetan, SMK Penerbangan Angkasa Malang, even providing new experiences for students from the Computer and Network Engineering department. Based on the results of the activity, the participants showed significant progress in knowledge and skills. Increasing knowledge and skills through the approach of educational materials and technical training provided, participants in this activity have learned the benefits, placement, procedures and how to use SMAW Electric welding correctly and safely. Almost all participants of this activity agreed that SMAW Electric Welding can help improve skills both in education and industry. Empowerment of Aviation Vocational School students in developing SMAW Electric Welding skills is expected to be applied in various industrial fields by providing several examples of how to use SMAW Electric Welding.
Pengaruh Return on Asset (ROA), Total Aset Turnover (TATO) dan Debt to Equity Ratio (DER) Terhadap Price to Book Value (PBV) pada Perusahaan Subsektor Produk Perawatan Tubuh yang Terdaftar di Bursa Efek Indonesia (BEI) Sakti, Gunawan; Nurulrahmatia, Nafisah; Munandar, Aris
HORIZON: Indonesian Journal of Multidisciplinary Vol. 4 No. 4 (2026): HORIZON: Indonesian Journal of Multidisciplinary
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/hijm.v4i4.6798

Abstract

This study aims to analyze the effect of Return on Assets (ROA), Total Asset Turnover (TATO), and Debt to Equity Ratio (DER) on Price to Book Value (PBV) in personal care products subsector companies listed on the Indonesia Stock Exchange for the 2020–2024 period. This study uses a quantitative approach with an associative method. The study population consists of 11 companies, while the sample was determined using a purposive sampling technique, resulting in 6 companies with 30 observations. The data used are secondary data from annual financial reports and were analyzed using multiple linear regression with the help of SPSS version 26. The results show that partially ROA and DER have no significant effect on PBV, while TATO has a positive and significant effect on PBV. Simultaneously, ROA, TATO, and DER have a significant effect on PBV with a coefficient of determination of 57.8%. This finding indicates that asset utilization efficiency is a more determining factor in increasing company value in the research model than profitability and capital structure individually. Thus, a company's ability to optimize assets to generate sales is a strategic aspect in enhancing market perception of the company's value. The results of this study imply that companies in the personal care products subsector need to prioritize effective asset management as part of their value-enhancing strategy.
Co-Authors Ahmad Bahrawi, Ahmad Aris Munandar Hadi Prayitno Nurulrahmatia, Nafisah Pambudiyanto, Nyaris Pramesti, Ulfiana Dyah Suyatmo Wirawan, Willy Artha Wulansari, Ajeng Yunior, Yudhis Tiro Kabul