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All Journal JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat G-Tech : Jurnal Teknologi Terapan Jurnal VORTEKS International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Jurnal Informatika dan Perancangan Sistem (JIPS)
Dona Tiara Lubis
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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Evaluasi Kinerja Modul Praktikum Pengkonversi Sinyal Analog ke Sinyal Digital Resolusi 8 Bit Panangian Mahadi Sihombing; Ridho Akbar Pratama; Indah Vusvita Sari; Dona Tiara Lubis; Susilawati; Sari Novalianda
JURNAL INFORMATIKA DAN PERANCANGAN SISTEM (JIPS) Vol 4 No 2 (2022): Volume 4, No 2: Mei 2022
Publisher : Prodi Teknik Informatika (S1) Institut Teknologi dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.736 KB)

Abstract

The level of accuracy of an integrated circuit (IC) in converting signals is very necessary to achieve good system performance. One of IC device that is often used as analog to digital converter (ADC) is the IC ADC0804. This study aims to evaluate the work of a practicum module for converting analog signals to digital signals, namely the ETEK ACS-3000-07 Module. The module uses the IC ADC0804 to convert analog signals to digital signals. Two methods were used to test the performance of the module, namely the simulation method and the calculation method. Furthermore, the mean error and standard deviation methods are used to analyze the data that has been obtained. Based on the results of the analysis, it is known that the ETEK ACS-3000-07 Module still has sufficient performance in converting analog signals into digital signals because it has a mean error 0.36 and a standard deviation 0.48.
Instalasi Automatic Valve Drain Sand Trap Tank Pabrik Kelapa Sawit Dona Tiara Lubis
JURNAL INFORMATIKA DAN PERANCANGAN SISTEM (JIPS) Vol 5 No 1 (2023): Volume 5, No.1 Januari 2023
Publisher : Prodi Teknik Informatika (S1) Institut Teknologi dan Bisnis Indonesia

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Abstract

In the collecting oil process at the clarification station the sand trap tank process is first, the trapped sand will be blown down or drained by the operator to reduce NOS (Non Oil Soiled) levels. With the installation of an automatic drain valve, this will further increase the performance of quality control at the clarification station and also minimize maintenance costs for the clarification machines. Another goal is regularity of the drain sand trap tank, affecting the stages of the refining and collecting oil process. Oil separation in the VCT (Vertical Clarifier Tank) with a norm of 40% oil, 40% water and 20% NOS will be maximally achieved, due to the NOS in the sand trap tank improving the blow down results.
Analisis Penggunaan Energi Listrik Untuk Peluang Hemat Energi Di Tiara Residence Lubis, Dona Tiara; Novalianda, Sari; Mawardi, Mawardi; Yudisha, Nabila
JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Vol. 7 No. 2 (2024): Journal of Electrical and System Control Engineering
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jesce.v7i2.10920

Abstract

An energy audit needs to be carried out to calculate energy consumption in buildings. This activity is a form of energy management which aims to meet national energy needs in accordance with long-term energy management policies, including Law no. 30 of 2007, concerning energy. This research uses data on the use of electrical energy at the Tiara Residence boarding house. The results of the energy audit serve as a reference for increasing profits from the boarding house business by saving on monthly electricity usage costs based on the amount of electricity consumption paid. This research was carried out by calculating the energy consumption intensity (IKE) value with influencing variables including energy consumption (kWh) per square meter (m2) per month. Based on the results obtained, the monthly power consumption is 1049 kWh-1231 kWh at a cost of Rp. 1,576,836-Rp. 1,852,473, then the IKE value is calculated and it is known that the efficiency level of energy use is in the efficient category in February, March, July, August, September and October, while in January, April, May, June it is categorized as very efficient. Apart from that, there are opportunities to save from installed electrical equipment by applying special behavior to the equipment.
Prototipe pengawasan dan pengontrolan aerator untuk budidaya udang berbasis IOT Mawardi, Mawardi; Sihombing, Panangian Mahadi; Adelisa, Solly; Siregar, Muhammad Amril; Dwi Putra, Muhammad Aditia; Lubis, Dona Tiara; Siregar, Masdania Zurairah
Jurnal VORTEKS Vol. 4 No. 1 (2023): April 2023
Publisher : Program Studi Teknik mesin, Fakultas Teknik, Universitas Al Azhar Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54123/vorteks.v4i1.265

Abstract

Aerator sering digunakan pada kolam budidaya udang karena berperan meningkatkan kualitas air dengan cara meningkatkan oksigen terlarut. Kadar oksigen terlarut yang cukup sangat dibutuhkan oleh udang untuk dapat berkembang dengan baik. Berdasarkan hal tersebut, aerator sangat berperan penting untuk meningkatkan budidaya udang. Namun, pemakaian aerator secara terus menurus dapat menyebabkan peningkatan biaya produksi berupa pemakaian listrik. Selain itu, pemakaian aerator secara terus menurus juga dapat memperpendek usia pemakaian aeorator itu sendiri. Dengan demikian, penelitian ini telah menghasilkan sebuah prototipe kontrol aerator secara automatis sehingga diharapkan dapat mengatasi masalah tersebut. Prototipe ini juga berbasis Internet of Things (IoT) untuk mengetahui suhu air kolam melalui smartphone pengguna. Prototipe ini mengaplikasi Wemos D1R2 sebagai prosesor untuk mengontrol aerator serta terhubung ke jaringan internet untuk mengaplikasikan teknologi IoT. Selain itu, aplikasi Blynk IoT juga digunakan pada smartphone pengguna agar dapat terhubung ke prototipe yang dibangun. Beberapa modul lain seperti sensor DS18B20, LCD, relay juga digunakan untuk kinerja prototipe yang dihasilkan
Implementation of Smart Receptacle Based on The Internet of Things as Developing The Quality of Micro, Small and Medium Enterprises Dona Tiara Lubis
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.5776

Abstract

The phenomenon of "chargers" is where visitors come to a cafe just to charge their smartphones or laptops without ordering food or drinks. This condition is becoming more prevalent due to various variables, including the rising utilization of smartphones and laptops, the necessity to charge devices while traveling, and cafés becoming the primary charging option due to their complimentary Wi-Fi and a conducive environment. The Smart Receptacle is a power outlet utilizing an ESP8266 microprocessor, capable of monitoring electric current and calculating use fees depending on a predefined program. This product utilizes the Internet of Things (IoT) to facilitate real-time monitoring of electric current via electronic devices. Smart Receptacle provides a solution for MSMEs, primarily targeting the Food & Beverage sector, while it is equally applicable to other industries necessitating efficiency and control in electricity consumption. This instrument can quantify the power utilized and compute the electricity consumption of each electrical gadget employed.
Training on Optimizing the Potential of Fresh Goat Milk into Cheese at Arjuna Farm Agung Pratama; Juli Novita Sari; Zikri Noer; Marina Wulandari Nasution; Dona Tiara Lubis
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 10 No. 1 (2025): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v10i1.19825

Abstract

Arjuna Farm Sheep and Goat Farm produces goat milk products. Goat milk can be processed into various products, one of them is cheese. This community service activity through training in making cheese products from goat milk aims to provide assistance to farmers with a focus on processing fresh goat milk into quality cheese at Arjuna Farm. Cheese has a longer shelf life than milk. By turning milk into cheese, farms can extend the shelf life of their products. The problems identified include low knowledge and skills of farmers and limited access to appropriate materials and equipment. To overcome these problems, this activity offers several solutions, including training and workshops to improve farmers' knowledge and skills for making cheese from goat milk, direct assistance in the cheese processing process, and provision of simple materials and equipment. So that Arjuna Farm not only sells goat milk, but can also produce cheese and can reach a wider market segment. The methods used in this community service are training and practice, guidance, and monitoring and evaluation.
REVIVING TRADITIONAL JAMU: THE CREATION OF HERBALIS MILK IN KELURAHAN KARYA JAYA, TEBING TINGGI Isfenti Sadalia; Beby Kendida Hasibuan; Marina Wulandari Nasution; Dona Tiara Lubis; Lailan Syafrina Hasibuan; Isdiana Syahfitri
International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Vol. 5 No. 3 (2025): November 2025 - February 2026
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.19464624

Abstract

Kelurahan Karya Jaya is a community where a significant number of people engage in jamu production. The community service program Revitalizing Traditional Jamu: The Development of Herbalis Milk in Kelurahan Karya Jaya, Tebing Tinggi aims to strengthen the potential of traditional jamu by innovating their presentation into herbal-based milk products. Jamu, one of Indonesia’s cultural heritage, is frequently viewed as unappealing to younger generations because of its bitter flavor and traditional presentation. Transforming jamu into herbal milk not only enhances its taste but also boosts its nutritional benefits and makes it more acceptable to consumers, particularly children and young people. The problems identified include limited knowledge of residents in product diversification, lack of skills in hygienic and modern processing, and minimal access to packaging technology that is attractive and marketable. To resolve these challenges, we provide training and workshops on turning jamu into herbalis milk, practical guidance and direct teaching during the production process, as well as assistance in packaging and marketing strategies. This activity is expected to revitalize the traditional jamu culture, create added economic value for the community, and open wider market opportunities through innovative herbal milk products. The methods used in this service activity are training and practice, mentoring, and monitoring and evaluation.
RAISING AWARENESS OF DRINKING WATER SAFETY AFTER FLOODING THROUGH pH EDUCATION AND SELF-TESTING KITS IN TANJUNG GUSTA SUBDISTRICT Dona Tiara Lubis; Juli Novita Sari; Subhan Fahmi Nasution
International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Vol. 6 No. 2 (2026): July-October 2026
Publisher : RADJA PUBLIKA

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Abstract

The massive flooding that struck Medan in November 2025 severely affected the Tanjung Gusta neighborhood in Medan Helvetia subdistrict, prompting the Al-Yahdi Medan Foundation to serve as an evacuation center. It also contaminated residents' clean Water sources, while the public still judges Water safety by visual clarity alone, without understanding pH as a key chemical indicator. This community service activity, under the Pioneer Service Program of the Vocational Faculty, Universitas Sumatera Utara, aimed to enhance the knowledge and skills of teachers, students, and parents at Al-Yahdi Foundation in assessing Water potability after the flood through education on pH parameters and training in portable pH meters, complementing simpler pH indicator (litmus) paper. Conducted at Al-Yahdi Foundation from April to November 2026, the activity comprised coordination, instrument design and validation, outreach, demonstrations, hands-on training, distribution of instruments and manuals, mentoring, and pretest–posttest evaluations. Average comprehension scores rose from 43.8 ('insufficient') to 87.0 ('good'). pH of Water samples from partner communities ranged from 5.9 to 7.2, with some outside the safe range set by Indonesia's Ministry of Health (6.5–8.5). This initiative effectively raised public awareness and fostered self-reliance in testing Water quality before consumption during post-flood recovery, supporting Sustainable Development Goals (SDGs) 3 and 6.
Co-Authors Adelisa, Solly Agung Pratama Beby Kendida Hasibuan Dwi Putra, Muhammad Aditia Hapzi Ali Isdiana Syahfitri Isfenti Sadalia Jayawarsa, A.A. Ketut Juli Novita Sari Lailan Syafrina Hasibuan Marina Wulandari Nasution Nabila Yudisha Panangian Mahadi Sihombing Ridho Akbar Pratama Sari Novalianda Sari, Indah Vusvita Siregar, Masdania Zurairah Siregar, Muhammad Amril Subhan Fahmi Nasution Susilawati, Susilawati Zikri Noer