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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Advances in Applied Sciences TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal EECCIS Jurnal Informatika dan Teknik Elektro Terapan JURNAL PENGABDIAN KEPADA MASYARAKAT Science and Technology Indonesia Matrix : Jurnal Manajemen Teknologi dan Informatika Jurnal Teknoinfo JCRS (Journal of Community Research and Service) Jurnal Teori dan Aplikasi Fisika Journal of Engineering and Scientific Research (JESR) Journal of Applied Data Sciences TEKTAN Journal of Innovation and Technology Journal of Multidisciplinary Applied Natural Science Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Electrician : Jurnal Rekayasa dan Teknologi Elektro Analit: Analytical and Environmental Chemistry SNTE Journal of Digital Market and Digital Currency Nemui Nyimah Analit: Analytical And Environmental Chemistry
Sri Ratna Sulistiyanti
[Scopus ID: 36606902600] Department Of Electrical Engineering Faculty Of Engineering University Of Lampung Jl. Sumantri Brojonegoro 1, Bandar Lampung
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Substraksi RGB untuk Identifikasi Jenis Daging Konsumsi Berbasis Pengolahan Citra Afri Yudamson; Sri Ratna Sulistiyanti; Syaiful Alam; FX Arinto Setyawan; Titin Yulianti
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 14 No. 2 (2020)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v14n2.2148

Abstract

Intisari Kesenjangan nilai ekonomis yang cukup tinggi yang terjadi pada komoditas beberapa jenis daging konsumsi menjadi penyebab utama terjadinya kecurangan pada proses penjualannya. Secara kasat mata, beberapa jenis daging akan terlihat sama sehingga sulit untuk diidentifikasi. Dengan menggunakan pengolahan citra, data matriks dari beberapa jenis daging konsumsi akan menampilkan kecenderungan tertentu sehingga dapat dijadikan ciri identifikasi. Sampel pada penelitian ini adalah daging Kambing, daging Anjing, daging Babi, dan daging Celeng. Metode Substraksi RGB merupakan turunan dari matriks citra RGB. Dengan menggunakan metode ini, citra masing-masing jenis daging konsumsi dapat diidentifikasi. Hasil penelitian menunjukkan bahwa daging Kambing dan daging Celeng dapat diidentifikasi menggunakan substraksi GB, sedangkan daging Anjing dan daging Babi dapat diidentifikasi menggunakan substraksi GB yang dilanjutkan dengan substraksi RB.Kata kunci kecurangan penjualan daging, identifikasi daging, pengolahan citra, substraksi RGBAbstract High gap of the economic values that occurs in several types of meat commodities is a major cause of fraud of the meat sales. In plain view, several types of meat will be look similar so these were difficult to identify. By using image processing, matrix data from several types of meat will display certain trends so that it can be used as an identification feature. Samples in this study were goat meat, dog meat, pork meat, and boar meat. The RGB Substraction Method is a derivative of an RGB image matrix. Using this method, images of each type of meat can be identified. The results showed that goat meat and boar meat could be identified using GB substraction, while dog meat and pork meat could be identified using GB substraction followed by RB subtraction.Keywords meat sales fraud, meat identification,image processing, RGB substraction
Dynamic evolution control for the DC/DC boost converter design and implementation Samosir, Ahmad Saudi; Sulistiyanti, Sri Ratna; Gusmedi, Herri; Mardiyah, Luthfiyyatun
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 1: March 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i1.pp357-366

Abstract

This paper introduces the design and hardware implementation of the dynamic evolution control for a DC/DC boost converter. The development of the controller aims to effectively regulate the output voltage of the DC/DC boost converter with a high degree of precision. A comprehensive examination of the duty cycle formula for the boost converter is conducted using a non-linear analysis approach. This study introduces a methodology for the synthesis of a converter controller utilizing the principles of dynamic evolution control theory. The converter's output consistently aligns with the target voltage by following the dynamic evolution path determined by the designed controller. The performance evaluation of the proposed boost converter controller utilizing dynamic evolution control is being validated through the utilization of MATLAB/Simulink simulation software. The effectiveness of the proposed controller is further validated through the presentation of hardware results. The performance of the controller was evaluated by varying the values of parameters k and m.
PROTOTIPE SISTEM PULLY MEKANIK HIGH TORQUE PENGGERAK ALAT PEMBERSIH PANEL SURYA OTOMATIS DENGAN MASSA 40 KG Rakhmat, Riko; Repelianto, Ageng Sadnowo; Setyawan, FX Arinto; Fitriawan, Helmy; Sulistiyanti, Sri Ratna
Jurnal Teknoinfo Vol 18, No 2 (2024): Juli 2024
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/jti.v18i2.3802

Abstract

Solar energy is one of the New Renewable Energy (EBT) which is used specifically to meet electrical energy needs by converting it using a device often called a solar panel. Solar panels are generally arranged in PLTS in open areas so they have the potential to be exposed to dirt such as dust which can accumulate over a certain time and cause a reduction in the efficiency of sunlight irradiance on the surface of the solar panels. The solar panel cleaning system in solar power plants (PLTS) usually still uses conventional methods, namely cleaning by human power. In current technological developments, many automatic cleaning tools have been developed, but most of them in the field are only able to support a tool mass of under 10 kg. To clean a large 330 Wp solar panel, a frame construction is needed as a panel holder that can support a device mass of more than 10 kg, so in this paper a solar panel frame is designed that can support a weight of up to 40 kg. This tool is designed with a mechanical system that is able to support a larger mass of tools than is generally available in the field. In terms of mechanical system, the frame design of this tool uses a rectangular shape with hollow iron material to maintain a balanced position and is driven by a motor with a pully system as a kinetic energy transmission system for rotational motion using a High Torque motor. From the research results, it was found that the tool was able to work with a mass of 40 kg, a power consumption of 53.15 Watts with a tool operating time of 4 hours.
INTRODUCING INTERNET OF THINGS (IOT) FOR A COMMUNITY VILLAGE BASED ON INDUSTRIAL REVOLUTION 4.0 Sulistiyanti, Sri Ratna; Setyawan, F.X. Arinto; Komarudin, M.; Warsono, Warsono
Journal of Community Research and Service Vol 2, No 2: July 2018
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v2i2.13148

Abstract

AbstractA house is a gathering place for a family, where each family member has a different passion and busyness. If at any time a family member is traveling and wants to monitor and control conditions from a distance, an electronic device is used. One solution to determine the condition of home security at all times, an internet connection is needed by using the concept of the Internet of Things (IoT). IoT is a concept of using an internet network to transfer data or share information with certain applications. The IoT concept is one of the IR 4.0 based systems. In Indonesia, the system has not been widely implemented, especially for village areas. The purpose of this activity is to introduce the concept of IoT in a region as a system of monitoring and controlling homes. The method used is socialization and training of IoT-based smart home models. The system that is introduced is setting lights, monitoring gas (kitchen security), and monitoring using a camera. The results obtained were an increase in knowledge from 45.4% to 79%, and increased skills from 33% to 63%.Keywords: IoT, Village, Industrial Revolution 4.0.
THE TECHNOLOGY INDUCTION FOR PREVENTING LIVESTOCK OF ANIMAL FEED FARMER GROUPS IN DISTRICT OF EAST LAMPUNG Sulistiyanti, Sri Ratna; Hartono, Madi; Wijaya, Agung Kusuma
Journal of Community Research and Service Vol 1, No 2: July 2017
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v1i2.9337

Abstract

AbstractThe common problem of livestock is abundant greenery during the rainy season and shortages in the dry season. The condition is bad for the health and productivity of livestock Preservation of animal feed technology is conducted by a team from Institute of Research and Community Service (LPPM) of Universitas Lampung, in Toto Mulyo Village, Way Bungur District, East Lampung. The purpose of the processing and preservation of forage feed source of fiber is to utilize forage in the rainy season, maintain the quality of forage, overcome the difficulty of forage in the dry season, improve the quality of forage fiber sources that have low nutrient content. Preservation technique is made silage (to maintain the quality of forage), while to improve the forage quality is done by fermentation and amoniation. The activities were carried out with the design of preserved livestock feeding equipment, training on the use and care of targeted farmer groups (Karya Makmur and Jati Diri 6), group management assistance, the handover of the preserved animal feed technology package, and formed a pilot group. The result of community service is a package of livestock feed preservation technology (silage and ammoniasi).Keywords: ammoniation, livestock feed preservation, fermentation, productivity, silage
Performance Evaluation of Fuzzy Logic System for Dendrobium Identification Based on Leaf Morphology Putra, Arie Setya; Syarif, Admi; Mahfut, Mahfut; Sulistiyanti, Sri Ratna; Hasibuan, Muhammad Said
Journal of Applied Data Sciences Vol 5, No 4: DECEMBER 2024
Publisher : Bright Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47738/jads.v5i4.224

Abstract

Dendrobium is the second-largest family of flowering plants in the world. There are several classes of Dendrobium, which usually identify by its, including leaves and flowers. Due to the similarity of its characteristics, identifying orchid types is complicated and usually can only be done by an expert. Moreover, those characteristics are typically non-deterministic; examining the orchid species is very challenging. This research aims to develop a novel fuzzy-based system to identify the species of orchid based on unprecise existing leaf characteristics. We used the main characteristics of Dendrobium leaves, including shape, length, width, and tips of the leaves. Based on the information from the expert, we develop the membership for each class of Dendrobium. By adopting this knowledge, we develop the system by using compatible programming with this case, and Borland Delphi as complex application development. The experiment is done by using 200 real datasets from the Liwa Botanical Gardens, West Lampung Regency, Lampung Province, Indonesia. The results are compared with those given by a Dendrobium expert. A confusion matrix is a valuable evaluation tool for measuring the performance of classification models. From the above results, we can determine the confusion matrix and calculate the TP (True Positive), TN (True Negative), FP (False Positive), and FN (False Negative). The confusion matrix given from the experiments is shown in Table 6. This indicates that the system can provide the same results as experts recommended. It is shown that the system can identify orchid types with an accuracy value of 94,6 %.  Thus, this system will be beneficial for automatically determining the orchid genus.
Analysis of PM2.5 Level Related to Vehicle Activities in Campus Parking Lot Panuju, Achmad Yahya Teguh; Susila, M Dyan; Wahono, Endro Prasetyo; Sulistiyanti, Sri Ratna; Ibrahim, Gusri Akhyar
Jurnal Inovasi Teknologi Vol 5 No 2 (2024): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

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

Abstract

The number of vehicle usage, especially motorcycles, in Indonesia has significantly increased in the past 10 years, particularly among young people. This has had an impact on the declining air quality in public places, including on campus grounds. PM2.5, as one of the hazardous pollutants to health, needs to be given special attention regarding its dispersion concentration in areas heavily frequented by the public, such as parking lots on campus. This study analyzes the level of PM2.5 concentration in the campus parking lots at Universitas Lampung, with the aim of observing the pattern of PM2.5 pollution in the campus area, considering the increasing number of motorcycles entering the campus every year. The measurement of PM2.5 levels was conducted using a light scattering sensor in two parking lots with different microenvironments, and then its correlation with motorcycle activities at each location was analyzed using simple regression. Based on statistical analysis, it was found that the differences in microenvironments affect PM2.5 levels significantly. The number of motorcycle activities also has a positive correlation with the level of PM2.5, where the average PM2.5 concentration recorded has exceeded the threshold set by the government, which is 15 µg/m3 per day. However, the effect of the microenvironment in this study is stronger than the number of vehicles. Therefore, in the future, appropriate policies and strategies are needed to reduce PM2.5 concentrations in public areas, especially on campuses, to prevent the associated risks of the pollution.
The contribution of eco bus technologies to environmental problem mitigation: a systematic review Panuju, Achmad Yahya Teguh; Wahono, Endro Prasetyo; Sulistiyanti, Sri Ratna; Ibrahim, Gusri Akhyar
International Journal of Advances in Applied Sciences Vol 14, No 1: March 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i1.pp86-100

Abstract

Substituting diesel technology with eco-technologies in public buses is one of the prominent efforts being made to achieve a sustainable transportation system goal. Among these eco-technologies, commonly used ones include electric vehicles, natural gas fuel, hydrogen fuel, and bio-diesel fuel technology. However, the performance comparison between these technologies in reducing environmental impact at each location where they are implemented remains unanswered by previous studies. Research to measure the effectiveness of each of the eco-technologies in reducing environmental issues has been conducted extensively, employing various methods and metrics. This study conducted a systematic review of 94 articles that met the predefined inclusion criteria to obtain performance comparisons among these technologies. As a result, a general trend has been observed that eco-technologies have successfully achieved their intended goals with various success rates, although electric bus technology has advantages over other technologies based on the articles. However, its effectiveness relies on specific aspects to optimize its environmental performance. Therefore, the suitability of implementation in a region will depend on many factors. This article contributes to determining the extent to which eco-technologies are implemented in buses worldwide, serving as a consideration for decision-makers, and identifying research gaps in this topic.
PEMBERDAYAAN DIGITAL UNTUK PARIWISATA: WORKSHOP CANVA DAN CAPCUT BAGI PEMUDA KARANG TARUNA Muhida, Riza; Murwadi, Haris; Ainita, Okta; Sulistiyanti, Sri Ratna; Kusumastuti, Dyah Indriana
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 9 No. 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v9i1.572

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan keterampilan anggota Karang Taruna di Pekon Sukabaru, Kecamatan Way Krui, Kabupaten Pesisir Barat, Provinsi Lampung, dalam mempromosikan pariwisata lokal melalui media sosial. Pelatihan ini difokuskan pada penggunaan aplikasi Canva dan CapCut sebagai alat bantu untuk membuat konten visual dan video yang menarik. Metode yang digunakan meliputi sesi pre-test lisan, penyampaian materi, praktik langsung, dan post-test lisan untuk mengevaluasi peningkatan keterampilan peserta. Hasil kegiatan menunjukkan peningkatan signifikan dalam pengetahuan dan keterampilan peserta mengenai pembuatan konten digital. Sebanyak 65% peserta mampu menghasilkan poster dan video yang siap digunakan untuk promosi wisata. Selain itu, peserta juga menunjukkan antusiasme dan komitmen untuk mengaplikasikan keterampilan yang diperoleh dalam memajukan pariwisata daerah. Kesimpulannya, pelatihan ini berhasil memberdayakan komunitas lokal dalam meningkatkan daya tarik wisata melalui media sosial, serta berpotensi memperkuat perekonomian lokal. Disarankan agar pelatihan lanjutan dan kolaborasi dengan pemerintah daerah dilakukan untuk mendukung keberlanjutan program ini.
IMPLEMENTASI TEKNOLOGI SOLAR PANEL DI RUMAH IBADAH SEBAGAI ENERGI BERKELANJUTAN YANG MENDUKUNG SDGs DI DESA RUKTI ENDAH ubaidah, ubaidah; F.X. Arinto Setyawan; Sri Ratna Sulistiyanti; Afri Yudamson; Yudi Eka Putra; Tiya Muthia
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 9 No. 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v9i1.590

Abstract

Rumah ibadah memiliki peran penting dalam kehidupan masyarakat Indonesia, dengan masjid sebagai rumah ibadah terbanyak karena mayoritas penduduk beragama Islam. Di Desa Rukti Endah, sekitar 92% penduduknya beragama Islam. Rumah ibadah membutuhkan listrik untuk penerangan, sistem suara, dan kipas angin. Ketergantungan pada listrik utama sering menjadi kendala, terutama saat pemadaman, yang dapat mengganggu aktivitas ibadah. Pengabdian ini bertujuan mengimplementasikan energi terbarukan melalui Pembangkit Listrik Tenaga Surya (PLTS) skala kecil sebagai sumber energi cadangan rumah ibadah. Penerapan PLTS mendukung keberlanjutan dan sejalan dengan Sustainable Development Goals (SDGs), khususnya SDG 7 (energi bersih dan terjangkau) serta SDG 13 (aksi iklim). Dengan teknologi ini, rumah ibadah dapat lebih mandiri energi dan ramah lingkungan. Mitra dalam kegiatan ini menyediakan lokasi uji coba pemasangan PLTS di masjid. Pengurus masjid diberikan pelatihan pemasangan, pemeliharaan, dan penghitungan kebutuhan energi agar sistem PLTS bekerja optimal. Diharapkan pengurus masjid dapat menerapkan teknologi ini di masjid lain, memperluas manfaat energi berkelanjutan di Desa Rukti Endah.
Co-Authors A S Samosir Achmad Yahya Teguh Panuju Adi Saputra Admi Syarif Afri Yudamson Afri Yudamson Ageng Sadnowo Ageng Sadnowo Repelianto Agus Trisanto Agus Wantoro Ahmad Pauzi, Gurum Ahmad Saudi Samosir Ahmad Saudi Samosir Anjarwati, Arie Arie Anjarwati Arie Setya Putra Arief, Khollaqul Dedyk Erryyanto dhika, eduar Dyah Indriana Kusumastuti Eko Efendi Eko Rismawan Endro Prasetyo Wahono F.X. Arinto F.X. Arinto Setyawan Ferika Shaumi, Rahma Fitria Yunita Fitriwan, Helmy Frisky Volino Andreas Gurum Ahmad Pauzi Gurum Ahmad Pauzi Gusri Akhyar Ibrahim Haris Murwadi Helmy Fitriawan Helmy Fitriawan Hendro Utomo Herlinawati -, Herlinawati Herlinawati Herlinawati Herlinawati Herlinawati Herri Gusmedi Herti Utami Herti Utami Hesti Wahyu Handani Junaidi Junaidi Junaidi Junaidi Junaidi Khairudin Khairudin Khairun Nisa Khollaqul Arief Komalasari, Agrianti Komarudin, M. Kris Sivam Kurnia Muludi Kurniawan, Dendi Luh Putu Ratna Sundari Lukita, Jimmy M Jerry Juliandr Suja M Said Hasibuan M Yusuf Tamtomi M. Dyan Susila Madi Hartono Mahfut Mardiana Mardiana Mardiyah, Luthfiyyatun Marjunus, Roniyus Meizano Ardhi Muhammad Minhajjul Abidin Jaya Muhamad Komarudin Muhamad Komarudin Muhamad Komarudin Muhammad David Muhammad Ifan Saputra Muthia, Tiya Nadia Muthiati Nisa, Mia Abi Noer Sudjarwanto Nurul Hudayani Okta Ainita Pami Ruli Setiawan Pauzi, Gurum Ahmad Posman Manurung Quart Ferrina Rahmat, Rafli Dwi Rakhmat, Riko Ranny Dwidayanti Riza Muhida Rudi Darmawan Setyawan, F X Arinto Setyawan, FX Arinto Sony Ferbangkara Sri Purwiyanti Sri Purwiyanti Sri Purwiyanti Sri Wahyu Suciyati Sumadi Sumadi SUMADI SUMADI Surtono, Arif Suryadiwansa Harun Sutyarso Sutyarso Syafriadi Syafriadi Syaiful Alam Syaiful Alam Syaiful Alam Titin Yulianti Tiya Muthia Tiya Muthia Trismahargyono Trismahargyono ubaidah ubaidah Ubaidah, Ubaidah Umi Murdika Wahyu Eko Sulistiono Warsito Warsito Warsono Warsono Wasinton Simanjuntak Wasinton Simanjuntak Wasinton Simanjuntak Wijaya, Agung Kusuma Winanti, Diki Danar Tri Winarto Winarto Y E Putra Yanti Yulianti Yanti Yulianti Yogi Aldino Yudi Eka Putra Yudi Eka Putra Yuli Darni Yuli Darni Yuli Darni