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All Journal e-Jurnal Arus Elektro Indonesia Jurnal Segara JSAI (Journal Scientific and Applied Informatics) Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Journal of Applied Electrical Engineering Journal of Community Research and Engagement International Journal of Electrical and Intelligent Engineering
Dananjaya Endi Pratama
Department Of Electrical Engineering, Universitas Jember, Jember, Indonesia
Humanities Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Public Health Social Sciences

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Salinity Sensor Development for Pond Water Utilizing Ultrasonic Wave Dananjaya Endi Pratama; Agus Indra Gunawan; Rusminto Tjatur Widodo; Akhmad Hendriawan
Jurnal Segara Vol 18, No 2 (2022): August
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v18i2.10932

Abstract

Shrimp farming is one of the most popular aquaculture activities in Indonesia. This activity is carried out in a pond. Therefore, there are many ponds as a place for shrimp farming in Indonesia. Several factors affect the results of shrimp farming in ponds. One of the factors is water quality. Four parameters that are commonly used to indicate water quality i.e. dissolve oxygen, salinity, PH, and temperature. In this study, we discussed salinity measurement. Most salinity sensors use the probe principle in measurement. When the sensors are used to measure the water that contains mineral salts, the probe will be susceptible to rust and cause measurement errors. Based on these conditions, we conducted a study of salinity measurements by using the acoustic technique. The measurement was carried out by using an ultrasonic wave. The water salinity was determined based on the acoustic intensity and acoustic speed. In this research, we developed a conversion curve based on the measurement of acoustic intensity from NaCl, KCl, and MgCl2 saline solutions with certain concentrations. The conversion curve is used to measure salinity in pond water. We also calculated salinity based on the measurement result of acoustic speed. From the experiment, the NaCl conversion curve became the most suitable for salinity measurement. The measurement result of salinity in pond water from the NaCl saline solution conversion curve was very close to the results of Del Grosso formula, Chen Millero formula, and refractometer.
Water Quality Meter Module to improve shrimp production quality in Mojopuro Gede Village, Gresik Firnanda Pristiana Nurmaida; Agus Indra Gunawan; Dananjaya Endi Pratama; Fithrotul Irda Amaliah; Fildzah Aure Gehara Zhafirah; Muhammad Wafiq Kamaluddin; Ari Setiawan; Nashrullah Nashrullah; Alfandino Rasyid
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 8, No 1 (2023): February 2023
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v1i1.8673

Abstract

Shrimp cultivation is a very profitable business in Gresik. However, shrimp farmers in Mojopuro Gede Village, Gresik admitted that they did not optimize their cultivation process. The farmer did not realize that water quality is essential to be considered in aquaculture. Based on these problems, the team held a community service in Mojopuro Gede Village, Gresik by introducing the water quality meter module and giving it to several shrimp farmers in the area. This activity was carried out so that the farmers can improve their cultivation process which has not been optimal and also introduce them to technological developments. Technology use in cultivation is expected to increase the quality of the farmers' crops. The implementation methods used in this activity are socialization and training. In this community service program, education has been given to the farmers so that they understand and care about the condition of their ponds in the cultivation process. The purpose of this program is for introducing the importance of technology in the cultivation process, even though it is actually not easy to provide education to shrimp farmers, especially traditional farmers. Therefore, related parties (NU Gresik Maritime Institute and Maritime Affairs and Fisheries Office of East Java Province) are expected to be more active in providing understanding to the farmers regarding the importance of applying technology in the cultivation process.
RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA SURYA SEBAGAI SUPLAI DAYA UNTUK PENYINARAN KEBUN BUAH NAGA Erwinda, Yudha Teja; Arizal Mujibtamala Nanda Imron; Dananjaya Endi Pratama; Bambang Sujanarko; Candra Putri Rizkiyah Ramadhani; Wicaksono, Immawan
Jurnal Arus Elektro Indonesia Vol. 11 No. 1 (2025)
Publisher : Fakultas Teknik, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jaei.v11i1.51294

Abstract

Di Banyuwangi, petani buah naga menghadapi masalah produktivitas di luar musim panen karena tanaman tidak berbunga dalam waktu lama. Mereka menggunakan lampu sebagai pengganti sinar matahari, tetapi ini meningkatkan biaya listrik dan tidak semua lahan dapat dijangkau oleh listrik PLN. Solusi yang tepat adalah memanfaatkan energi terbarukan dari matahari dengan sistem Pembangkit Listrik Tenaga Surya (PLTS) off-grid. Data input dari panel surya dan baterai diambil selama 3 hari dari pukul 09.00 hingga 15.00 WIB, dan data output diambil selama beberapa malam dari pukul 21.00 hingga 02.00 WIB. Perancangan dilakukan dengan menggunakan komponen seperti panel surya, SCC, batrai, dan inverter. Sistem ini menunjukkan kinerja yang baik, dengan produksi energi pada hari pertama sebesar 89,35 Wh melebihi konsumsi 83,3 Wh, dan produksi pada hari kedua mencapai 100,82 Wh dengan sisa energi 17,52 Wh. Meskipun pada hari ketiga produksi turun menjadi 67,78 Wh, sisa energi dari hari sebelumnya mencukupi kebutuhan. Selain itu, pemberian lampu secara signifikan mempercepat pembungaan tanaman buah naga, dengan peningkatan bunga yang signifikan dari minggu kedua hingga kelima, sementara tanaman tanpa lampu tidak berbunga.
Connectivity Revolution: Fiber Optic Network Mapping for Modern Jember Darmawan, Muhammad Riza; Fadhil, Martiana Kholila; Rizkiyah R., Candra Putri; Pratama, Dananjaya Endi; Triputradi, Moh. Erdianto
Jurnal Arus Elektro Indonesia Vol. 10 No. 3 (2024)
Publisher : Fakultas Teknik, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jaei.v10i3.53349

Abstract

Jember Regency is a popular marine tourism destination with five beaches, each experiencing an increase in the number of visitors each year in Jember Regency. Although these beaches are favorites and increase visitors annually, they require better infrastructure to support tourism activities. The research evaluated the network design using several parameters: power link budget, rise time, Signal to Noise Ratio (SNR), and Bit Error Rate (BER). The result of this study shows that the 39 network paths meet the BER calculation standard of 10-12 and the SNR standard of 21.5 dB.
A Study on Reducing Measurement Fluctuations in Iron-Electrode Salinity Sensor Using Moving Average and Kalman Filters Pratama, Dananjaya Endi; Habibulloh, Muhammad Aldino; Darmawan, Muhammad Riza; Ramadhani, Candra Putri Rizkiyah; Triputradi, Mohammad Erdianto; Fadhil, Martiana Kholila
Journal of Applied Electrical Engineering Vol. 9 No. 1 (2025): JAEE, June 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v9i1.9539

Abstract

Indonesia is recognized as one of the leading shrimp-producing countries globally, with most farms operating on a small scale using traditional methods. This creates a strong demand for low-cost technologies to support aquaculture. One critical component in shrimp farming is water quality monitoring, where salinity is a key parameter affecting shrimp health and growth. Affordable salinity sensors using iron electrodes are increasingly considered. However, they often produce unstable and fluctuating readings, compromising monitoring reliability. This study addresses the issue by applying digital filters to enhance the stability of salinity sensor data. Two filtering methods, Moving Average and Kalman filters were evaluated using salinity ADC data from previous research. The analysis focused on comparing their effectiveness in stabilizing measurements. Results show that the Moving Average filter outperformed the Kalman filter, providing lower standard deviation values (87,09, 65,69, 63,67) and variance values (7,5807E+03, 4,3150E+03, 4,0542E+03), confirming its suitability for improving low-cost salinity sensor performance.
OUTREACH AND TRAINING ON THE USE OF BOTANICAL PESTICIDES IN SUPPORT OF SUSTAINABLE AGRICULTURE IN SITUBONDO Rudianto, Rudianto; Safitri, Nova Monica Aulia; Arianto, Pratama Yuli; Darmawan, Muhammad Riza; Fadhil , Martiana Kholila; Putra, Alfian Andhika; Rikarda, Raden Denisio Edwin; Ramadhani, Candra Putri Rizkiyah; Pratama, Dananjaya Endi
Journal of Community Research and Engagement Vol. 2 No. 1 (2025): MAY
Publisher : Universitas Muhammadiyah Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38040/jcore.v2i1.1219

Abstract

Botanical pesticides are naturally occurring chemicals derived from plant sources such as leaves, flowers, roots or seeds. This material has the potential as a more environmentally friendly and sustainable alternative to chemical pesticides. In general, residents in Mangaran Village, Mangaran District, Situbondo Regency work as farmers. In controlling pests and plant diseases, chemical pesticides are usually used to overcome them. The negative impact of using chemical pesticides is that pests will become increasingly resistant to the pesticides given, so stronger pesticides are needed the stronger the attacking pests. This resulted in an increasing number of chemicals in the crops that farmers planted which had an impact on the health of both farmers and consumers. The purpose of this socialization regarding vegetable pesticides is to increase knowledge regarding the manufacture of natural pesticides to control pests and diseases in plants. The socialization and training that was carried out received enthusiasm from farmers and those who attended the socialization were 26 farmers represented by each hamlet. The socialization results obtained are encouraging farmers to produce vegetable pesticides and reduce dependence on chemical pesticides
Bridging the Digital Divide in Archipelagic Marine Tourism: A Study of Telecommunications Infrastructure and Traffic Engineering in Raja Ampat, Indonesia Darmawan, Muhammad Riza; Cahyadi, Widya; Fadhil, Martiana Kholila; Pratama, Dananjaya Endi; Ramadhanty, Vina Dewi; Ramadhani, Candra Putri Rizkiyah
International Journal of Electrical and Intelligent Engineering Vol 2, No 1 (2026)
Publisher : Department of Electrical Engineering Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/ijeie.v2i1.41376

Abstract

This study assesses telecommunications infrastructure and traffic engineering in Raja Ampat, Indonesia, comprising four main islands and over 1,500 smaller islands across 46,000 km² of marine protected area. Field measurements at 48 points over 2023–2024, combined with QoS evaluation and SWOT-based assessment, revealed adequate signal coverage (–65 to –80 dBm) only within 1 km of shore-based stations, degrading to –95 to –110 dBm at offshore diving locations (5–15 km), where throughput dropped to 2–5 Mbps against the 10–50 Mbps requirement. A Modified Erlang B Model showed 3–4× seasonal traffic variation, with peak busy-hour demand reaching 2.5–4 Gbps from 300–560 concurrent users and the Misool–Salawati backhaul reaching 95% utilization. Capacity forecasting (R² = 0.91) indicates saturation within 2–3 years. An integrated approach combining additional base stations, expanded backhaul, LEO satellite integration, and renewable energy is essential.
Evaluasi Kualitas Layanan Digital Aplikasi Tomoro Coffee Terhadap Kepuasan Kaum Produktif Menggunakan Framework E-Service Quality Vina Dewi Ramadhanty; Martiana Kholila Fadhil; Muhammad Riza Darmawan; Fauziyah Azzahro; Muhammad Andryan Wahyu Saputra; Dananjaya Endi Pratama
JSAI (Journal Scientific and Applied Informatics) Vol 8 No 3 (2025): November
Publisher : Fakultas Teknik Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/jsai.v8i3.9245

Abstract

The trend of drinking coffee among productive people has impacted the growth of coffee shops in Indonesia. To strengthen its market position, Tomoro Coffee utilizes mobile applications. However, there is dissatisfaction with the quality of Tomoro Apps' digital services in reviews. This study evaluated the quality of Tomoro's digital application services using the Electronic Service Quality model. The model focuses on comprehensive digital services from technical aspects and other aspects related to user satisfaction. The assessment was conducted on students of Jember University who made transactions through Tomoro Apps. Data was collected using a questionnaire involving 100 students as research samples. The data were processed using instrument testing, classical assumption testing, and multiple linear regression analysis. An analysis of the data showed that efficiency, responsiveness, and contact positively affected user satisfaction. From the data analysis, seven dimensions of e-service quality were known to have a significant positive and negative effect and were able to explain 88.3% of user satisfaction variability. Through this study, we found that there is still a gap between expectations and application performance. Therefore, improvements in digital service quality should be made in each dimension of electronic service quality, balanced and focused on service users, so that Tomoro Coffee continues to be a competitive advantage. These findings have managerial implications for Tomoro Coffee as recommendations on each dimension of Electronic Service Quality to improve the quality of digital services and strengthen its position in the market.
Co-Authors Agus Indra Gunawan Agus Indra Gunawan Akhmad Hendriawan Alfandino Rasyid Ari Setiawan Arizal Mujibtamala Nanda Imron Bambang Sujanarko Candra Putri Rizkiyah Ramadhani Erwinda, Yudha Teja Fadhil , Martiana Kholila Fadhil, Martiana Kholila Fauziyah Azzahro Fildzah Aure Gehara Zhafirah Firnanda Pristiana Nurmaida Fithrotul Irda Amaliah Habibulloh, Muhammad Aldino Immawan Wicaksono Martiana Kholila Fadhil Martiana Kholila Fadhil Muhammad Andryan Wahyu Saputra Muhammad Riza Darmawan Muhammad Riza Darmawan Muhammad Wafiq Kamaluddin Nashrullah Nashrullah Pratama Yuli Arianto Putra, Alfian Andhika Ramadhani, Candra Putri Rizkiyah Ramadhanty, Vina Dewi Rikarda, Raden Denisio Edwin Rizkiyah R., Candra Putri Rudianto Rudianto Rusminto Tjatur Widodo Safitri, Nova Monica Aulia Triputradi, Moh. Erdianto Triputradi, Mohammad Erdianto Vina Dewi Ramadhanty Widya Cahyadi