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All Journal Jurnal Informatika dan Teknik Elektro Terapan Journal of Industrial Engineering & Management Research (JIEMAR) Quantitative Economics and Management Studies Jurnal Pengabdian Sosial Indonesian Journal of Environment and Sustainability Issues
Putra, Rizki Pratama
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METODE DETEKSI FASA PADA SALURAN LISTRIK TEGANGAN RENDAH DENGAN Esp32 DAN KOMUNIKASI LoRa Darmana, Tasdik; Putra, Rizki Pratama; Sitorus, Meyhart Torsna Bangkit; Multi, Abdul; Ariman
Journal of Industrial Engineering & Management Research Vol. 3 No. 1 (2022): February 2022
Publisher : AGUSPATI Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (548.108 KB) | DOI: 10.7777/jiemar.v3i1.285

Abstract

Load balancing on a low-voltage distribution sistem by adjusting the phase of the new load to be installed requires information on the type of line phase that will be connected to the load. In this research, a phase reading method is proposed using Esp32 with LoRa communication. The purpose of this research is to make a method of reading phase with independent and reliable communication. The phase reading method is carried out by calculating the time difference between the periodic zero values of a phase and then comparing it with other phases to determine the type of phase based on its similarity. With this principle the effect of harmoniks can be reduced where the harmoniks do not affect the time of the zero value of the periodic sinusional wave. Based on the results of the review conducted, this method is better than the conventional method using an electronic mosfet circuit or logic gate where the reference signal cannot be adjusted and the fabrication process is for high-cost commercialization
Budidaya Ikan Lele Dengan Metode Recirculating Aquaculture System Dipesantren Madarijul Mubtadien Untuk Mewujudkan Kemandirian Ekonomi Rusjdi, Halim; Putra, Rizki Pratama; Hendri, Hendri; Sulistyo, Eko; Wahyuningsih, Utami; Sany, Nasril; Alfalah, Win; Emilia, Emilia; Hasanudin, Muhaimin
Jurnal Pengabdian Sosial Vol. 1 No. 10 (2024): Agustus
Publisher : PT. Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/pfy4ra53

Abstract

Kemandirian ekonomi pesantren merupakan hal yang penting untuk diwujudkan agar pesantren dapat independent dalam menjalankan fungsinya sebagai tempat Pendidikan, dakwah dan pemberdayaan masyarakat. Untuk mewujudkan hal tersebut maka dalam program pengabdian ini kami membuat suatu unit usaha budidaya ikan lele menggunakan sistem Recirculating Aquaculture System untuk meningkatkan kualitas hidup dan mempercepat proses pembesaran ikan lele di pondok pesantren Madarijul Mubtadien. Tujuan yang hendak dicapai adalah mewujudkan suatu sitem budidaya ikan lele dengan metode RAS dan kontrol otomatis berbasis IoT. Untuk merealisasikan tujuan tersebut maka beberapa tahap dilakukan yakni dengan melakukan survey lokasi dan juga pangsa pasar ikan lele di lokasi tersebut. Pada sistem kolam RAS, untuk memudahkan operasional budidaya makan dibuat suatu sistem otomasi berbasis IoT dengan penjadwalan sirkulasi air dan kontrol dari jarak jauh melalui internet. Adapun hasil yang diperoleh dari kegiatan ini adalah program budidaya ikan lele dapat berjalan dengan baik sehingga dapat membantu pesantren untuk memulai bisnis budidaya ikan lele yang akan membantu mewujudkan kemandirian ekonomi pesantren. Selain itu penyuluhan Teknik budidaya dan perawatan kolam memberikan keterampilan bagi pengurus pesantren dan juga santri sehingga nantinya menjadi bekal pasca pendidikan pesantren untuk berkontribusi di masyarakat.
DESAIN PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) ON-GRID 60 KWP Gusmedi, Herri; Putra, Rizki Pratama; Samosir, Ahmad Saudi
Jurnal Informatika dan Teknik Elektro Terapan Vol 13, No 1 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i1.5537

Abstract

Pada 2021, sektor energi Indonesia menghasilkan hampir 600 MtCO2, terutama dari industri energi pembangkitan listrik. Sektor ini menyumbang 50% dari total semua sektor yang menyumbang emisi di Indonesia. Sektor energi sangat berpeluangan sebagai sasaran dalam transisi energi dalam mengurangi emisi karbon akibat bahan bakar fosil. Penelitian ini bertujuan merencanakan Sistem Pembangkit Listrik Tenaga Surya (PLTS) On-Grid. Metode penelitian meliputi perancangan sistem PLTS On-Grid di Gedung Serba Guna Universitas Lampung dengan kapasitas 60 kWp dan simulasi menggunakan perangkat lunak PVSyst 7.4 untuk mendapatkan potensi energi berdasarkan data radiasi matahari dan suhu pada Meteonorm 8.1 dan menguji performa sistem. Hasil simulasi menunjukkan bahwa PLTS On-Grid ini mampu menghasilkan energi sebesar 88,636 MWh/tahun dengan nilai Performance Ratio sebesar 84,34%, Capacity Utilization Factor sebesar 16,85%, nilai Reference Yield tahunan mencapai 1749,8 kWh/kWp, nilai Array Yield tahunan mencapai 1504,5 kWh/kWp, dan nilai Final Yield tahunan mencapai 1475,8 kWh/kWp. Hasil ini mengindikasikan bahwa sistem PLTS yang dirancang dapat beroperasi secara efisien dalam mengkonversi energi matahari menjadi energi listrik.
Analysis of Corporate Tax Turnover Ratio as an Indicator of Taxpayer Compliance Level Putra, Rizki Pratama; Santioso, Linda
Quantitative Economics and Management Studies Vol. 6 No. 3 (2025)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.qems4057

Abstract

This research focuses on assessing tax potential from the aspect of calculating tax ratios, namely CTTOR, GPM, and NPM as one of the indicator tools to explore taxpayer potential in mapping the risk of non-compliance. This research method uses a descriptive type of research with a quantitative analysis approach. The research technique in data collection uses secondary data, namely audited financial reports obtained from the IDX. The analysis tool uses CTTOR, GPM, and NPM by comparing the tax ratios set from the Directorate General of Taxes. The sample of this study is 3 corporate taxpayers engaged in the animal feed sub-sector. The results of this research show that the average values of CTTOR, GPM, NPM in 2022 are 0.69%, 12.09%, and 2.81% while the DGT benchmark is 2.42%, 16.89%, and 4.78% with a difference of 1.73%, 4.8% and 1.97%. Then the average values of CTTOR, GPM, and NPM in 2023 are 0.71%, 11.99%, and 2.04% with a difference of 1.71%, 4.9% and 2.7% on the DGT benchmark. So it can be concluded from the aspects of CTTOR, GPM, and NPM that the level of corporate tax compliance in the animal feed sub-sector is still below the standards set by the DGT. A significant difference that shows the potential for taxes that have not been explored optimally.
Prevalence and Diversity of Ectoparasites in African Catfish (Clarias gariepinus) Cultured in Freshwater Ponds of Lampung, Indonesia Alkausar, Triawan; Aini, Azizah Nurul; Ulmillah, Aulia; Putra, Rizki Pratama; Waddell, Nawaporn
Indonesian Journal of Environment and Sustainability Issues Vol. 2 No. 2 (2025): December 2025 | Indonesian Journal of Environment and Sustainability Issues
Publisher : WISE Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70211/ijesi.v2i2.273

Abstract

Ectoparasitic infestations pose a significant threat to the sustainability of aquaculture systems, particularly affecting African catfish (Clarias gariepinus), a species intensively cultured in tropical regions, including Indonesia. This study aimed to analyze the community structure, prevalence rate, and infection intensity of ectoparasites in C. gariepinus cultured in three freshwater pond units located in Way Kandis, Lampung. Fieldwork was conducted between March and April 2023, involving 50 individuals measuring 25–30 cm in length. Fish mucus was collected from the skin, fins, and gill lamellae, followed by microscopic examination to identify ectoparasite genera and quantify infestation levels. A total of five ectoparasitic genera were identified: Oodinium, Gyrodactylus, Dactylogyrus, Chilodonella, and Trichodina. Among them, Dactylogyrus spp. showed the widest distribution across all sampling sites. The highest prevalence occurred in Pond I (46%), followed by Pond II (26%) and Pond III (10%), resulting in an overall prevalence of 86%. Mean infection intensities ranged from 1.25 to 2.00 parasites per host, with higher intensities observed in ponds exhibiting poor water quality and limited maintenance. These findings demonstrate that ectoparasitic infections remain a critical issue in small-scale aquaculture systems. The study provides important baseline data for developing targeted parasitological surveillance and management strategies. It underscores the necessity of proactive health management practices to enhance fish welfare, reduce production losses, and support sustainable aquaculture development in tropical pond-based systems.
Co-Authors AA Sudharmawan, AA Abdul Multi Ahmad Saudi Samosir Aini, Azizah Nurul Alfalah, Win Ariman Aulia Ulmillah Darmana, Tasdik Emilia Emilia Hendri Hendri Herri Gusmedi Linda Santioso Meyhart Bangkit Sitorus Nasril Sany Rusjdi, Halim Triawan Alkausar Utami Wahyuningsih Waddell, Nawaporn