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All Journal International Journal of Electrical and Computer Engineering International Journal of Applied Power Engineering (IJAPE) TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Science and Technology Indonesia JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING JMM (Jurnal Masyarakat Mandiri) Journal of Applied Engineering and Technological Science (JAETS) Indonesian Journal of Electrical Engineering and Computer Science Unri Conference Series: Community Engagement Yayasan Cita Cendikiawan Al Khwarizmi Prioritas : Jurnal Pengabdian Kepada Masyarakat Journal of Sustainability Perspectives Jurnal Akselerasi Merdeka Belajar dalam Pengabdian Orientasi Masyarakat (Jurnal AMPOEN) RESLAJ: Religion Education Social Laa Roiba Journal Jurnal Ilmiah Teknik Informatika & Elektro (JITEK) Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Journal of Engineering and Technological Sciences
Dadan Ramdan
Univeristas Medan Area
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Analisis Kualitas Produk Botol 30ml Dengan Parameter Temperatur Pada Mesin Injection Molding Model Blow Elapri, Bima Yoel; Ramdan, Dadan; Umroh, Bobby
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 2, No 2 (2023): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), November
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v2i2.3424

Abstract

Injection molding is one method that is widely used because of the lower cost required. The resulting plastic product is inseparable from the problem of product defects. This research uses quantitative methods and data collection or field on the subject of research, after that analyzing each parameter. The results of this study the occurrence of several defects in the product, namely short molding product defects have the most defects, namely 3, while over mold, sink mark and weldmark or flow product defects are 2 and the least is the hole product defect, namely 1. The setting at temperature determines the quality, especially in terms of appearance, at a temperature of 190 0C gives a much better product quality compared to temperatures of 180 and 200 0C. Analyze the optimal screw speed of 8 Rpm so that the resulting product can become a desired bottle product. Analysis of product defects that occur are Sink Mark, Weldmark or flow mark, Shrinkage and Over Mold which occurs at temperatures of 180 - 200 0C. The defects that most often arise because the mold has uneven lines so that defects occur in bottle products.
Rancang Bangun Cetakan Botol Ukuran 30 ml Model Blow Pada Mesin Injection Molding Siagian, Martua Sangap; Ramdan, Dadan; Umroh, Bobby
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 2, No 1 (2023): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), May
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v2i1.2009

Abstract

At present, the need to use plastics and the advancement of manufacturing technology for the material itself drive people's demand for plastics, and the development of technology has further increased competition in all fields of industry. Therefore, the plastics industry needs to increase production in terms of quality and quantity. In this way, plastic can slowly replace iron and steel due to its good moldability and light weight. In this research, as a research method, we use quantitative methods by conducting surveys, data collection and field research related to the research theme. After the data is collected, the next step is the fabrication of the test equipment. From the mold fabrication results, the mold is in the shape of a 30 ml bottle with dimensions of 105 mm x 40 mm, inlet ø 6 mm, outlet 3 mm, and the mold is made of aluminum. This mold is called the 3 plate system and the mold consists of 3 main parts which are divided into 3 parts. Good and ideal molding results were obtained with HDPE (High Density Polyethylene) material with injection speed parameters of 8 rpm and temperature of 190°C.
Sosialisasi Pembuatan Pakan Fermentasi untuk Ternak Sapi di Dusun I Bukit Gantung Desa Sumber Mulyo Rahman, Sayuti; Khahfi Zuhanda, Muhammad; Ramdan, Dadan; Hartono, Hartono; Syah, Rahmad; Sembiring, Arnes; Astuti Kuswardani, Retna; Suswati, Suswati; Ady Pratama, Ramadhan; Martini, Dewi
Prioritas: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 02 (2025): EDISI SEPTEMBER 2025
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ketersediaan pakan berkualitas menjadi tantangan utama bagi peternak sapi di Dusun I Bukit Gantung, Desa Sumber Mulyo, terutama pada musim kemarau ketika hijauan terbatas dan harga pakan komersial meningkat. Ketergantungan pada rumput dan jerami tanpa pengolahan menyebabkan rendahnya nilai nutrisi serta pertumbuhan ternak yang tidak optimal. Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan memberikan edukasi dan pelatihan kepada peternak mengenai pembuatan pakan fermentasi sebagai solusi aplikatif, murah, dan berkelanjutan. Metode pelaksanaan mencakup sosialisasi konsep fermentasi, demonstrasi teknis, dan hands-on training mulai dari pemilihan bahan, pencacahan, pencampuran dengan EM4, pengaturan kadar air, hingga pengemasan anaerob dan proses inkubasi. Evaluasi dilakukan melalui pre-test dan post-test untuk mengukur peningkatan pengetahuan dan keterampilan peserta. Hasil kegiatan menunjukkan peningkatan signifikan antara 40% hingga 54% pada aspek pemahaman konsep dasar, teknik pengolahan, serta kemampuan menganalisis kesalahan fermentasi. Pelatihan ini terbukti efektif dalam membangun kapasitas peternak untuk memproduksi pakan fermentasi secara mandiri, memanfaatkan limbah pertanian, dan mengurangi ketergantungan pada pakan komersial. Penerapan teknologi fermentasi diharapkan mampu meningkatkan produktivitas ternak serta mendukung praktik peternakan yang lebih efisien dan berkelanjutan.
Frequency response-based optimization of PID controllers for enhanced fluid control system performance Frianto, Herri Trisna; Humaidi, Syahrul; Tarigan, Kerista; Ramdan, Dadan; Bonardo, Doli
International Journal of Applied Power Engineering (IJAPE) Vol 14, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v14.i4.pp1058-1070

Abstract

Temperature and viscosity variations are known to affect the performance of proportional-integral-derivative (PID) controllers in fluid systems. However, there exist gaps in research relative to the thermal effects on the performance of PID based fluid systems. PID controllers are also utilized for fluid control to maintain stability and improve performance. This study aims to explore the influence of temperature and viscosity variations through frequency response analysis for the first time in this regard. Utilizing a controlled experimental setup, gain and phase values were measured across different temperature points. Bode and Nyquist plots were generated to observe system behavior, stability, and response to changes in temperature and fluid viscosity. The results show a clear inverse relationship between temperature and gain, with a notable phase lag increase as temperature rises. At 25 °C, the gain was measured at 15.83 dB with a phase of -52.63°, which gradually reduced to a gain of 13 dB and a phase of -61.53° at 80 °C. The Nyquist analysis revealed stable operation within this temperature range, but the shift in response indicates increased system vulnerability as viscosity decreases with rising temperature. The derived linear equations effectively model the gain-phase relationship, with an R² of 0.9985, suggesting a highly accurate fit. Overall, the study concludes that temperature-induced viscosity changes significantly impact PID-controlled fluid systems, emphasizing the need for adaptive control strategies in fluctuating environments.
PENERAPAN SOLAR HOME SYSTEM (SHS) OFF-GRID UNTUK EFISIENSI ENERGI DAN PEMBERDAYAAN INDUSTRI RUMAHAN KATERING Siregar, Muhammad Fadlan; Ramdan, Dadan; Anisa, Yuan; Mungkin, Moranain
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 5 (2025): Oktober
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i5.34543

Abstract

Abstrak: Mitra Katering Indah Akbar Hafis mengalami kendala produksi dan manajemen energi akibat tingginya ketergantungan pada listrik PLN untuk mengoperasikan peralatan dapur seperti oven, lemari pendingin, dan pemanas. Pemadaman listrik yang sering terjadi menghambat proses produksi, menurunkan mutu layanan, serta berpotensi menimbulkan kerugian. Selain itu, ketiadaan sistem manajemen energi menyebabkan pemborosan daya dan biaya operasional tinggi. Program pengabdian ini bertujuan menerapkan Solar Home System (SHS) Off-Grid sebagai solusi efisiensi energi sekaligus upaya mendorong pemanfaatan energi terbarukan yang ramah lingkungan. Metode pelaksanaan meliputi persiapan, sosialisasi, pelatihan, instalasi SHS, serta pendampingan dan evaluasi. Kegiatan melibatkan 30 peserta dari mitra dengan evaluasi berupa angket post-test yang terdiri dari 10 pertanyaan. Hasil menunjukkan keberhasilan program, ditandai dengan 85% peserta menyatakan setuju dan 15% cukup setuju terhadap manfaat kegiatan. Hal ini membuktikan peningkatan pemahaman peserta mengenai renewable energy sekaligus menunjukkan potensi penghematan energi melalui penerapan SHS Off-Grid untuk mendukung efisiensi dan pemberdayaan industri rumahan.Abstract: The partner, Katering Indah Akbar Hafis, faces production and energy management challenges due to its high dependence on PLN electricity to operate kitchen equipment such as ovens, refrigerators, and heaters. Frequent power outages disrupt the production process, reduce service quality, and potentially cause financial losses. In addition, the absence of an effective energy management system leads to power waste and high operational costs. This community service program aims to implement an Off-Grid Solar Home System (SHS) as an energy efficiency solution while promoting the use of environmentally friendly renewable energy. The implementation stages include preparation, socialization, training, SHS installation, as well as mentoring and evaluation. The activity involved 30 participants from the partner, with evaluation conducted using a post-test questionnaire consisting of 10 questions. The results indicate the program’s success, with 85% of participants strongly agreeing and 15% agreeing with its benefits. This demonstrates an improvement in participants’ understanding of renewable energy and highlights the potential for energy savings through SHS Off-Grid implementation to support efficiency and empower home-based industries.
Design and Development of a Water Flow Monitoring Device using Mitsubishi FX3U-14MT PLC Frianto, Herri Trisna; Humaidi, Syahrul; Tarigan, Kerista; Ramdan, Dadan; Bonardo, Doli; Amri, Fauzan
Journal of Engineering and Technological Sciences Vol. 58 No. 3 (2026): Vol. 58 No. 3(2026): June (In Progress)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2026.58.3.3

Abstract

Efficient water management is essential for ensuring sustainability and reducing operational costs, especially in small to medium-scale buildings such as schools, health clinics, and office facilities. This paper presents the design and implementation of a cost-effective automated water flow monitoring system, integrating a Mitsubishi FX3U-14MT PLC with an Arduino module to facilitate real-time flow measurement and precise control of solenoid valves. The PLC is programmed using ladder logic, while the Arduino is responsible for processing sensor data, thereby enhancing measurement accuracy and contributing to overall system flexibility. In contrast to conventional industrial automation solutions, this system is specifically designed for small-scale applications, offering an effective balance of affordability, simplicity, and reliability. Experimental testing demonstrates that the system achieves high measurement accuracy, operational stability over extended use, and optimized energy efficiency, ensuring long-term reliability in water flow management. Additionally, the system’s modular design enables straightforward adaptation to various facility sizes and plumbing configurations. These findings validate the proposed system as an accessible yet effective automation solution, particularly suitable for environments where implementing large-scale industrial control systems may be impractical. Future research could focus on incorporating adaptive control algorithms and enhancing sensor integration to further improve system performance and flexibility.
Pemanfaatan Teknologi Digital untuk Meningkatkan Produktivitas dan Kemandirian Peternak Ikan Desa Mariendal II Pratama, Bayu Aditya; Hasibuan, Nasaruddin Nur; Rahman, Sayuti; Ramdan, Dadan; Syah, Rahmad; Hartono; Zuhanda, M. Khahfi; Sembiring, Arnes; Indrawati, Asmah; Satria, Habib; Ritonga, Iqbal Giffari
Dedikasi Sains dan Teknologi (DST) Vol. 5 No. 2 (2025): Artikel Pengabdian Nopember 2025
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/dst.v5i2.7875

Abstract

Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk meningkatkan produktivitas dan kemandirian peternak ikan air tawar di Desa Mariendal II melalui penerapan sistem feeder dan monitoring pakan ikan berbasis Internet of Things (IoT). Permasalahan utama mitra meliputi pemberian pakan yang masih dilakukan secara manual, ketidakteraturan jadwal pakan, pemborosan pakan, serta keterbatasan literasi teknologi. Metode pelaksanaan kegiatan menggunakan pendekatan partisipatif yang meliputi tahap persiapan, pelatihan dan implementasi sistem IoT, pendampingan, serta evaluasi. Evaluasi dilakukan menggunakan pre-test dan post-test untuk mengukur peningkatan pemahaman dan keterampilan peserta. Hasil kegiatan menunjukkan peningkatan rata-rata kompetensi peserta sebesar 47%, dengan peningkatan tertinggi pada keterampilan instalasi dan pengoperasian perangkat serta kemampuan membaca hasil monitoring pakan. Nilai effect size yang sangat besar menunjukkan bahwa peningkatan kompetensi dipengaruhi secara signifikan oleh intervensi kegiatan. Selain itu, penerapan sistem feeder otomatis memberikan dampak operasional berupa peningkatan keteraturan pemberian pakan, pengurangan pemborosan pakan, serta efisiensi waktu dan tenaga kerja peternak. Tingginya tingkat keberterimaan teknologi tercermin dari konsistensi penggunaan sistem oleh sebagian besar peserta setelah kegiatan berakhir. Dengan demikian, kegiatan PkM ini membuktikan bahwa penerapan teknologi IoT yang tepat guna dan disertai pendampingan berkelanjutan mampu meningkatkan efisiensi budidaya ikan sekaligus mendorong kemandirian peternak secara berkelanjutan.
Penguatan Kelompok Pengrajin Gula Aren Di Desa Batulawang Melalui Digital Marketing dan Branding Produk Untuk Meningkatkan Pendapatan Solandarika, Wulan; Permana, Nana Yudi; Mukhtar, Mukhtar; Aryansyah, Firman; Febriyani, Sarah; Ramdan, Dadan; Falendra, Randy Malik; Wahyudi, Jajang
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.500-506

Abstract

This community service program aims to address the main question of how digital marketing strategies and product branding can strengthen the capacity of palm sugar artisan groups in Batulawang Village while simultaneously increasing community income. The partner’s main challenges include limited product packaging, a lack of knowledge in digital marketing, and low product competitiveness in broader markets. The program was implemented using a participatory approach through the following stages: (1) identifying partner needs, (2) conducting digital marketing training, (3) providing assistance in designing packaging and brand identity, and (4) evaluating the application of marketing strategies. The results indicate improvements in artisans’ knowledge and skills in using digital media for promotion, the creation of palm sugar product branding with more attractive packaging, and an expansion of marketing reach to online platforms. The measurable initial impact includes an increase in product demand and a rise in the average income of artisan groups. Therefore, this program successfully strengthened community business capacity while also creating opportunities for more sustainable market development.
Pembuatan dan Uji Impact Plat dari Serat Karbon Kevlar Gonzales Marpaung, Lewi; Ramdan, Dadan
Reslaj: Religion Education Social Laa Roiba Journal Vol. 7 No. 12 (2025): RESLAJ: Religion Education Social Laa Roiba Journal
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/reslaj.v7i12.10060

Abstract

Carbon fiber has been widely used in various fields thanks to its superior properties in terms of stiffness, lightness, strength and corrosion resistance. This study uses an experimental method using a mold and a vacuum machine and tested using a charpy impact. This test aims to determine the strength properties of a plate made of carbon fiber type Kevlar blue reflective metallic plain 200 gm formed into a plate. The results of the plate test using 3 layers of carbon fiber have an impact strength of 327 (Joules), a 7-layer plate has an impact strength of 654 (Joules), and an 11-layer plate has an impact strength of 752 (Joules). The process of making the plate by infusion, so that it can affect the density of each layer, and can be formed into a plate. The impact test was carried out to determine the impact strength value of the designed plate. From the results of the impact test, the 11-layer plate can be applied to the car body
Co-Authors Abdul Karim Ady Pratama, Ramadhan Alia, Salsabila Rahma Aliakbar, Muhammad Almoataz Youssef Abdelaziz Amri, Fauzan Andi Rubiantara Aryansyah, Firman Asmah Indrawati ASNAWI Auliana, Sigit Bobby Umroh Bonardo, Doli Chu Yee Khor Dina Maizana Elapri, Bima Yoel Erna Frida Erwin Perdamaian Telaumbanua Falendra, Randy Malik Febriyani, Sarah Gonzales Marpaung, Lewi Habib Satria Habib Satria Harahap, Usman Hartono Hartono Hartono Hartono Hasibuan, Nasaruddin Nur Herri Trisna Frianto, Herri Trisna Ida Fauziah, Ida Ifvochy, Jammes Indri Dayana Ivandar Tambunan Jaka Windarta Juliaster Marbun Khor Chu Yee Marlan Swandana, Marlan Martha Rianna Martini, Dewi Maulana Ns, Farhan Mohd Zulkifly Abdullah Moranain Mungkin Muhammad Ali Akbar, Muhammad Ali Muhammad Fadlan Siregar Muhammad Ghaffaar Ramadhan Muhammad Khahfi Zuhanda Mukhtar Mukhtar Ningsih, Ratu Septia Permana, Nana Yudi Petrus, Simon Pratama, Bayu Aditya Rahmad B.Y Syah Rahmad Syah, Rahmad Rahman, Sayuti Retna Astuti Kuswardani Rimbawati Ritonga, Iqbal Giffari Sembiring, Arnes Siagian, Martua Sangap Siti Utari Rahayu Solandarika, Wulan suhada, mukhlis suswati suswati Syafii . Syahrul Humaidi, Syahrul Syarifah Muthia Putri Tambunan, Ivandar Tarigan, Kerista Usman Harahap Wahyudi, Jajang Yuan Anisa Yulianta Siregar Zuhanda, M. Khahfi Zulfitra Zulfitra