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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) JTERA (Jurnal Teknologi Rekayasa) Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal ULTIMA Computing ABDIMAS SILIWANGI Journal of Information Technology and Computer Engineering Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal GERVASI: Jurnal Pengabdian kepada Masyarakat JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Infotekmesin Journal of Applied Electrical Engineering Journal of Energy and Electrical Engineering (JEEE) REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat E-JOINT (Electronica and Electrical Journal Of Innovation Technology) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) EPSILON: Journal of Electrical Engineering and Information Technology Electrician : Jurnal Rekayasa dan Teknologi Elektro International Journal of Advanced Science Computing and Engineering Jurnal Pengabdian Mitra Masyarakat Jurnal Riset Multidisiplin Edukasi Jurnal Teknokes
Andri Ulus Rahayu
Universitas Siliwangi
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Social Sciences Other

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Pemanfaatan Teknologi Dehidrator dan Pemasaran Digital untuk Meningkatkan Pendapatan Petani Lemon di Kecamatan Cihaurbeuti, Kabupaten Ciamis Mutiarasari, Nurul Risti; Rahayu, Andri Ulus; Manik, Visi Tinta
Jurnal Pengabdian Mitra Masyarakat Vol 5, No 1 (2025): Edisi September
Publisher : Universitas Islam Sumatear Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jurpammas.v5i1.12385

Abstract

The implementation of the Community Empowerment Program in Cihaurbeuti District, Ciamis Regency, aimed to increase the economic value of lemons through processing technology and digital marketing. This program was designed to address key issues, such as price fluctuations and the lack of post-harvest technology, which often leads to lemon spoilage. The proposed solution involved using an electric dehydrator to process lemons into dried lemon, which has a longer shelf life and higher market value. Additionally, digital marketing training was provided to help farmers expand their market reach and promote their products through online platforms. The training covered the use of marketplaces, branding strategies, and packaging to enhance product competitiveness. As a result, farmers showed significant improvements in their knowledge and skills: 83.3% in operating the dehydrator, 81.9% in packaging techniques, and 76.6% in digital marketing. These improvements are expected to increase farmers' income by enabling them to sell durable dried lemon products to wider markets. Initial evaluations indicated a high level of satisfaction among the farmers with the program. This program is expected to improve farmers' welfare and economic independence.
PENERAPAN TEKNOLOGI SINAR UVC SEBAGAI MEDIA STERILISASI DOKUMEN DALAM UPAYA PENCEGAHAN PENULARAN COVID-19 Rahayu, Andri Ulus; Chobir, Abdul; Usrah, Ifkar; Korneliani, Kiki; Hiron, Nurul
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 4, No 2 (2021): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v4i2.402-408

Abstract

Data dari Dinas Kesehatan Kota Tasikmalaya menunjukan bahwa sampai tanggal 19 Juni 2020 jumlah kasus positif melalui PCR dan RDT berjumlah 50. Puskesmas Kecamatan Cibeureum dan MAN 2 Tasikmalaya sebagai mitra perlu mempersiapkan diri untuk menghadapi adaptasi kebiasaan baru. Salah satu yang harus mendapatkan perhatian adalah bahaya penularan Covid-19 melalui kontak langsung dengan dokumen-dokumen yang memiliki mobilitas perpindahan tangan yang cukup tinggi mengingat dokumen tidak bisa disterilisasi menggunakan cairan disinfektan. Solusi yang ditawarkan adalah dengan memberikan alat sterilisasi dokumen-dokumen dengan teknologi Sinar Ultraviolet tipe C (UVC) kepada mitra Puskesmas Cibeureum dan MAN 2 Tasikmalaya, beserta edukasi terkait dengan aturan dan cara menggunakan alat sterilisasi dokumen tersebut. Berdasarkan data, tingkat pemahaman mitra terkait dengan covid-19, penggunaan teknologi UVC dan dampak negatif yang harus dihindari dari penggunaan teknologi tersebut mengalami peningkatan yang sangat signifikan. Selain itu, teknologi yang diterapkan oleh mitra tersebut khususnya teknologi UVC sangat bermanfaat dan dapat digunakan dengan mudah oleh mitra.  
Implementation of Trajectory Tracking on Mobile Robot Differential Drive Imam Taufiqurrahman; Sujarwanto, Eko; Andri Ulus Rahayu; Mira Riski Aldiani; Sayyid Qhutub Abdul Hakim
ULTIMA Computing Vol 17 No 2 (2025): Ultima Computing: Jurnal Sistem Komputer
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31937/sk.v17i2.4413

Abstract

Abstract—This study discusses the implementation of trajectory tracking on a differential drive mobile robot using the odometry method. The system was designed by utilizing rotary encoders to estimate the robot’s position and a proportional controller to regulate movement toward the target point. Experiments were carried out on multi-point trajectories, namely three-way and four-way paths, under two different surface conditions: flat and textured fields. The results showed that the robot was able to follow the predetermined path with a relatively high level of accuracy, especially on flat surfaces. However, on textured paths, the accuracy decreased due to wheel slip and disturbances in encoder readings. The comparison between both conditions emphasizes that surface characteristics have a significant influence on the performance of odometry-based trajectory tracking. Keyword — Mobile robot, differential drive, odometry, trajectory tracking, proportional control
Dashboard Berbasis Web untuk Pemantauan Status Gizi Anak: Klasifikasi Otomatis Z-Score WHO, Visualisasi Longitudinal, dan Evaluasi Kegunaan Gustaman, Rian Arie; Rahayu, Andri Ulus; Taufiqurrahman, Imam; Sanaz, Fittur Farabi
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 7 No. 2 (2025): Desember 2025
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v7i2.16079

Abstract

This study addressed the need for timely monitoring of child nutritional status by designing, implementing, and evaluating a web-based dashboard. The system captured demographic and anthropometric records, automated status classification using World Health Organization z-scores, and visualized longitudinal growth trajectories. Development followed an iterative, user-centered process and was validated with synthetic records and formative testing by community health workers. Functional testing confirmed correct operation of data entry, classification, and reporting. Against reference calculations, category assignments matched all twenty test cases. Performance profiling indicated responsive interaction (time to first byte about 180 milliseconds; time to interactive about 1.3 seconds), and usability measured with the System Usability Scale fell in the “good” range. Findings suggested readiness for community use and a scalable foundation for future integration and field deployment.
PENGARUH VARIASI BEBAN TERHADAP EFISIENSI GENERATOR DI PT. PERTAMINA GEOTHERMAL ENERGY AREA KARAHA Ragil Abi Pamungkas; Andri Ulus Rahayu
Jurnal Riset Multidisiplin Edukasi Vol. 3 No. 2 (2026): Jurnal Riset Multidisiplin Edukasi (Februari 2026)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v3i2.1697

Abstract

PLTP atau pembangkit listrik tenaga panas bumi area Karaha merupakan salah satu pembangkit yang memanfaatkan sumber energi terbarukan yaitu panas bumi. Pengoperasianya memanfaatkan uap (steam) dari reservoir dalam tanah untuk menggerakan turbin pada generator. Oleh sebab itu, diperlukan kinerja generator yang efisien dalam menjaga kinerja pembangkitan energi listrik. Penelitian ini bertujuan untuk mengetahui nilai efisiensi generator yang didapatkan dari perbandingan antara daya input dan daya output. Menggunakan metode perhitungan manual dengan data pada tanggal 1 sampai 17 bulan Agustus 2025. Hasil perhitungan menunjukan bahwa efisiensi generator berada pada kisaran 94,4%-95,6%, yang mengindikasikan bahwa generator beroperasi secara stabil dan mendekati kondisi optimal. Variasi efisiensi yang terjadi dipengaruhi oleh perubahan beban generator, dimana efisiensi cenderung menurun pada kondisi beban parsial dan meningkat saat mendekati beban nominal. Secara keseluruhan, hasil penelitian ini menunjukan bahwa perubahan beban memiliki pengaruh terhadap efisiensi generator, namun sistem generator PLTP PGE Area Karaha masih beroperasi dengan kinerja yang andal.
Co-Authors Abd Rahman Abdul Chobir Adzikri, Fikri Agustini Rodiah Machdi Annashr, Nissa Noor Arie Gustaman, Rian Aris Risnandar, Muhammad Asep andang Asep Andang, Asep Azis Muhajar Chobir, Abdul Daniel Happy Putra Edvin Priatna Eko Sujarwanto Enov Tikupasang Ervan Paryono Faisal Candrasyah Hasibuan Faridah, Linda firmansyah maualana sugiartana nursuwars Firmansyah MSN Fittur Farabi Sanaz Gustaman, Rian Arie Hamdani, Yuda Muhammad Ifkar Ushar Ifkar Usrah Imam Taufiqurrahman Imam Taufiqurrahman Imam Taufiqurrahman Kiki Korneliani Kiki Korneliani Mira Riski Aldiani Moch Yuagga Permana Mochammad Fadillah Putra Muhammad Aris Risnandar Muhammad Aris Risnandar Muhammad Faiz Dzaki Chanafi Mutiarasari, Nurul Risti Nadya Aprilia Nadya Aprilia Naim, Nidar Nadrotan Nundang Busaeri Nundang Busaeri Nurdiansyah, Rian Nursuwars, Firmansyah Maulana Nurul Hiron Nurul Hiron, Nurul Paryono, Ervan Permana, Prama Ragil Abi Pamungkas Ramdani R Rian Nurdiansyah Risnandar, M Aris Risnandar, Muhammad Aris Sanaz, Fittur Farabi Sayyid Qhutub Abdul Hakim Shopa, Rahmi Nur Stheven Erlangga Sanjaya Sulastri, Heni Sutisna Tejaleksono, Gunawan Usrah, Ifkar Visi Tinta Manik Wisnu, Iqbal Fawzi