Abstract:Abstract: The global transition towards sustainable food systems faces significant challenges in vegetarian food supply chains, including transparency issues, distribution inefficiencies, and quality verification problems.…
s. This research proposes VegeChain development, a decentralized marketplace ecosystem based on smart contracts designed to transform vegetarian food supply chains and accelerate Meatless, Balanced, Green (MBG) program adoption. Using mixed-method methodology integrating blockchain system design, stakeholder analysis, and economic simulation, this research develops a comprehensive technology framework combining blockchain transparency, smart contract automation, and sustainable tokenomics with novel mathematical models. The system implements dynamic pricing algorithms based on Automated Market Maker (AMM) mechanisms, multi-objective optimization for supply chain efficiency, and reputation-based consensus protocols. Simulation results demonstrate that VegeChain implementation can improve supply chain efficiency by 35%, reduce food waste by 28%, and increase consumer trust by 42% measured through validated stakeholder satisfaction surveys (n=456) using 5-point Likert scales with statistical significance p<0.001. Technical innovations include Byzantine Fault Tolerant consensus with 99.9% reliability, gas optimization achieving 67% cost reduction, and real-time quality verification algorithms with 98.7% accuracy.
Keywords: smart contracts; supply chain optimization; automated market makers; blockchain technology; sustainable tokenomics
Abstract:Abstract: The management of veterinary drug stocks at the Veterinary Clinic Technical Implementation Unit (UPTD) of the North Sumatra Province Plantation and Livestock Service faces obstacles in the form of discrepancies…
between supply and demand, resulting in excess stock and budget waste. Uncertain demand for drugs is a factor that complicates decision-making in stock provision. This study aims to optimize drug stock management using the Mamdani fuzzy logic method, which is capable of handling data uncertainty and modeling information linguistically. Three input variables are used, namely initial stock, demand, and number of visits, with the output being the final stock. The process involves fuzzification, inference based on IF–THEN rules, and defuzzification using the centroid method. The results show that the developed system has a good accuracy level with a MAPE value of 17.52%, which means that this model is effective in providing optimal and efficient drug stock recommendations in a veterinary clinic environment.
Keywords: fuzzy mamdani; optimization; animal drug stock.
Abstract:Abstract : Waste management in Sei Beluru Village faces challenges due to population growth and increasing waste volume. This research aims to design and implement an automatic waste bin system based on microcontroller using…
sing Arduino Uno. The research uses experimental method with hardware and software development stages including system design, component integration, and testing. The developed system integrates HCSR-04 sensors for waste volume detection, infrared sensors for object presence detection, and servo motors for automatic opening-closing mechanism. Test results show that the system successfully detects waste levels with high accuracy and operates the opening-closing mechanism effectively. The implementation of this system proves effective in optimizing waste management in Sei Beluru Village by reducing physical interaction and preventing waste accumulation.
Keywords : arduino uno; HCSR-04 sensor; automatic waste bin; HCSR-04 sensor; microcontroller; waste management.
Abstract : Waste management in Sei Beluru Village faces challenges due to population growth and increasing waste volume. This research aims to design and implement an automatic waste bin system based on microcontroller using Arduino Uno. The research uses experimental method with hardware and software development stages including system design, component integration, and testing. The developed system integrates HCSR-04 sensors for waste volume detection, infrared sensors for object presence detection, and servo motors for automatic opening-closing mechanism. Test results show that the system successfully detects waste levels with high accuracy and operates the opening-closing mechanism effectively. The implementation of this system proves effective in optimizing waste management in Sei Beluru Village by reducing physical interaction and preventing waste accumulation.
Keywords : arduino uno; HCSR-04 sensor; automatic waste bin; HCSR-04 sensor; microcontroller; waste management.
Abstract:Abstract: Due to the successful conversion from LPG stoves to electric stoves, which are unsupported by the village’s electricity supply—averaging 450 watts—while government-provided stoves have a power rating of 900…
wer rating of 900 watts, making them unsuitable for use in Tomuanhollbung Village. To address this issue, the research team designed a stove that uses waste oil (35,000 kJ/kg) and incorporated embedded system technology, utilizing the French design research method. The research results indicated that by using a DC motor with specifications of 12VDC/3A, 3800 rpm, and a valve diameter of 9.7 x 9.5 x 3.3 cm, a power output of 36W was achieved, with a pressure of 288.7 Pa or 0.00289 bar and an angular velocity of 398.1 rad/s. When the burner stove was first ignited, the flame appeared yellow. With a voltage of 3.7VDC/3A, it produced a rotation of 3795 rpm, a yellow flame, a flame height of 8 cm from the stove, and a flame width diameter of approximately 18 cm. At a voltage of 3.7VDC, the pressure measured 0.000964 bar, with a flame temperature of 275°C (as measured by an infrared sensor). A voltage of 7.4VDC resulted in a pressure of 0.0192 bar and a flame temperature of 350°C, while a voltage of 11.8VDC produced a pressure of 0.0289 bar with a maximum flame temperature of 420°C. For fuel consumption over 10 minutes at 3.7VDC/3A, the flame height reached 7-10 cm, with a wind pressure of 0.000964 bar and a fuel consumption of 0.237 grams.
Keywords : embedded system burner stove; microcontroller; snail dc motor.
Abstrak: Dilatar belakangi masalah kelangkaan elpiji didesa tomuanhollbung, serta tidak berhasilnya konversi kompor elpiji menuju kompor listrik karena daya listrik rumah masyarakat berdaya 450wat, daya kompor pemerintah 900watt, sehingga tidak bisa digunakan. Dari masalah tersebut, tujuan utama penelitian ini merancang kompor berbahan bakar oli bekas, yang mampu mengatasi masalah kelangkaan gas elpiji dan tidak terpakainya kompor dari pemerintah psat. Metode penelitian ini menggnakan metode prototype sehingga menghasilkan satu produk kompor burner dengan mengatur kecepatan motor DC. Hasil penelitian mendapati data pengujian mendapati bahwa dengan menggunakan motor DC Keong spesifikasi tegangan 12VDC/3A, 3800 rpm, dengan diameter katup 9,7 x 9.5 x 3.3cm menghasilkan daya 36W, dengan tekanan 288.7Pa atau 0.00289bar kecepatan sudut 398.1 rad/s. Ketika kompor burner pertama kali dinyalakan, warna api berwarna kunig. Jika tegangan 3.7VDC/3A akan menghasilkan putaran 3795rpm nyala api kuning, tinggi api 8cm dari tunggku kompor, dan diameter lebar keluarnya api dari tungku berkisar 18cm. Tegangan 3,7VDC maka menghasilkan tekanan 0.000964bar, nyala api 275 0C (pembacaan sensor infrared). Tegangan 7.4VDC menghasilkan tekanan 0.0192 bar, nyala api 350 0C, dan Tegangan 11.8 VDC tekanan 0.0289 bar, nyala api maksimal 420 0C. Untuk konsumsi bahan bakar selama 10 menit, dengan tegangan 3.7VDC/3A mendapati nyala api setinggi 7-10 cm, tekanan angin senilai 000964 bar dan konsumsi bahan bakar 0.237 gram. Kesimpulan penelitian ini mendapati bahwa nyala api kompor burner bisa di atur seperti nyala api kompor elpiji pada umum nya.
Kata kunci: kompor burner embedded system, microcontroller, motor dc keong.
Abstract:Abstract: The increasing number of students at STMIK Royal Kisaran has raised the risk of air pollution caused by vehicle emissions, cigarette smoke, and waste burning, particularly around the campus canteen. The campus's…
s location, which is close to a rubber factory and the Sumatra Crossroad, further exacerbates air quality and significantly impacts the health of individuals active at STMIK Royal. This study aims to develop a system that can measure air quality in real-time and detect pollutants in the campus environment. The system utilizes MQ-135 and MQ-2 sensors integrated with a microprocessor to process and transmit data to an IoT-based database. This research employs a qualitative descriptive method to describe the facts and trends based on the available data. The results indicate that air quality is good in the morning, worsens during the afternoon, and improves again in the evening, reflecting increased pollution during periods of heightened industrial and transportation activities. The implementation of this system is expected to contribute to the creation of a healthier environment and raise awareness about the importance of air quality.
Keywords: air quality; campus environment ; IoT; pollution.
Abstrak: Peningkatan jumlah mahasiswa di Kampus STMIK Royal Kisaran telah meningkatkan risiko polusi udara akibat asap kendaraan, rokok, dan pembakaran sampah, terutama di sekitar kantin kampus. Lokasi kampus yang dekat dengan pabrik karet dan jalan lintas Sumatera sehingga memperburuk kualitas udara dan sangat mempengaruhi kesehatan para individu yang beraktivitas di STMIK Royal. Penelitian ini bertujuan mengembangkan sistem yang dapat mengukur kualitas udara secara real-time dan mendeteksi polutan di lingkungan kampus. Sistem ini menggunakan sensor MQ-135 dan MQ-2 yang terintegrasi dengan mikroprosesor untuk mengolah dan mengirim data ke database berbasis IoT. Penelitian ini menggunakan metode deskriptif kualitatif untuk menggambarkan fakta dan kecenderungan dari data yang tersedia. Hasilnya menunjukkan bahwa kualitas udara baik di pagi hari, memburuk di siang hari, dan membaik lagi di sore hari, menunjukkan peningkatan polusi saat aktivitas pabrik dan transportasi meningkat. Implementasi sistem ini diharapkan dapat mendukung terciptanya lingkungan yang lebih sehat dan meningkatkan kesadaran akan pentingnya kualitas udara.
Kata kunci: IoT; lingkungan kampus; kualitas udara; polusi.
Abstract:Abstract: Based on observations and analysis of the current information system and website of the Unilak waste bank, it can be concluded that it is necessary to develop the software and information management system of this…
his waste bank. The application does not yet support the transaction needs at the waste bank. Although there are features, they don’t run as they should. This was also complained about by the director and staff of the Unilak waste bank. Therefore, this study was conducted to design a waste bank transaction management information system and software that will support its business processes, starting from calculating waste prices, managing customer savings to final reports. The research method used is qualitative, using information system analysis techniques and websites that are currently running at the Unilak waste bank. While for the SDLC (software development life cycle) development method, the XP Agile Methodologies cycle is used which is simpler and can be completed in a short time. There are 4 stages, namely Planning (requirements), design, implementation and testing. This study resulted in a customer transaction system design and software development that can help manage customer transaction activities at the Unilak waste bank.
Keywords: costumer; savings; software engineering; waste bank.
Abstrak: Berdasarkan observasi dan analisis terhadap sistem informasi dan website bank sampah Unilak yang berjalan saat ini, dapat disimpulkan bahwa perlu dilakukan pengembangan terhadap perangkat lunak maupun sistem informasinya. Aplikasi belum mendukung kebutuhan transaksi di bank sampah. Meskipun ada fitur-fiturnya, namun tidak berjalan sebagaimana mestinya. Hal ini juga dikeluhkan oleh direktur dan pengelola bank sampah Unilak. Maka penelitian ini dilaksanakan untuk merancang sistem informasi transaksi nasabah bank sampah dan perangkat lunak yang akan mendukung proses bisnisnya, yaitu mulai dari perhitungan harga sampah, pengelolaan tabungan nasabah hingga laporan akhir. Metode penelitian yang digunakan adalah kualitatif, menggunakan teknik analisis sistem informasi dan website yang sedang berjalan di bank sampah Unilak. Sedangkan untuk metode pengembangan SDLC (software development life cycle) menggunakan siklus XP Agile Methodologies yang lebih sederhana dan bisa diselesaikan dalam waktu singkat. Terdapat 4 tahap yaitu planning (requirements), analys, design, dan implementation. Penelitian ini menghasilkan rancangan sistem transaksi nasabah dan pengembangan perangkat lunak yang dapat membantu pengelolaan aktivitas transaksi nasabah di bank sampah Unilak.
Kata kunci: bank sampah; nasabah; rekayasa perangkat lunak; tabungan.
Abstract:Abstract: Attendance is evidence of the presence of an activity carried out by an employee. The attendance system at the Diskominfo Kabupaten Labuhanbatu Selatan office is currently still manual, namely by signing an attendance…
endance form. This raises various problems namely; data input errors, attendance manipulation, inefficient recapitulation processes, and waste in the use of paper. This study aims to apply the codeigniter framework to the attendance system that uses QR Code at the Communication and Information Office of South Labuhanbatu Regency. The system development applies the Waterfall method, and the design uses the UML modeling language. This system is designed to make the attendance process effective for employees at the Diskominfo Kabupaten Labuhanbatu Selatan office. From the results of the study, it was found that the codeigniter framework can be applied to an attendance system that uses a QR Code with a more efficient program code processing process.
Keywords: attendance; codeigniter; information system; qr code; web
Abstrak: Absensi merupakan bukti kehadiran dari suatu kegiatan yang dilakukan oleh seorang karyawan. Sistem absensi pada kantor Diskominfo Kabupaten Labuhanbatu Selatan saat ini masih manual yaitu dengan menandatangani formulir absensi. Hal ini menimbulkan berbagai masalah yakni; kesalahan penginputan data, manipulasi absensi, proses rekapitulasi yang tidak efisien, serta pemborosan dalam penggunaan kertas. Penelitian ini bertujuan untuk menerapkan framework codeigniter pada sistem absensi yang menggunakan QR Code di Dinas Komunikasi dan Informatika Kabupaten Labuhanbatu Selatan. Pengembangan sistem menerapkan metode Waterfall, dan perancangan menggunakan bahasa pemodelan UML. Sistem ini dirancang untuk membuat efektif proses absensi kehadiran karyawan pada kantor Diskominfo Kabupaten Labuhanbatu Selatan. Dari hasil penelitian didapatkan bahwa framework codeigniter dapat diterapkan pada sistem absensi yang menggunakan QR Code dengan proses pengerjaan kode program yang lebih efisien.
Kata kunci: absensi; codeigniter; qr code; sistem informasi; web
Abstract:Abstrak: Penelitian ini bertujuan untuk menentukan Tempat Pembuangan Sementara (Sampah) yang ada di kecamatan pamekasan. Manfaat pada penelitian ini dapat meningkatkan kesadaran masyarakat tentang pentingnya kebersihan dilingkungan…
ilingkungan sekitar dan tershindar dari segala penyakit dan dapat dijadikan bahan pertimbangan untuk memberikan pelayanan lebih baik lagi terhadap masyarakat. Khususnya untuk membangun Tempat Pembuangan Sementara (Sampah) yang ada dikecamatan pamekasan. Metode penelitian kualitatif deskriptif ini dengan pengumpulan data, wawancara, observasi dan dokumentasi. Hasil penelitian berupa tempat sampah sementara, pembuangan samentara (sampah) berdasarkan hasil penelitian kriteria penempatan TPS / TPS 3R sudah sesuai dalam pasal 20 permen PU nomer 03/PRT/M/2013, maka di temukan 12 desa untuk penempatan TPS yang ada di kecamatan pamekasan, dengan jumlah tempat sampah 77 TPS.
Kata Kunci: Lingkungan; Penentuan; SIG; (Sampah) TPS
Abstract: This study aims to determine the Temporary Disposal Place (Garbage) in Pamekasan sub-district. The benefits of this study can increase public awareness about the importance of cleanliness in the surrounding environment and avoid all diseases and can be taken into consideration to provide better service to the community. Especially to build Temporary Disposal Sites (Garbage) in the Pamekasan sub-district. This descriptive qualitative research method uses data, observation, and documentation. The results of the study were temporary trash cans, waste disposal based on the results of the research, the criteria for placing TPS / TPS 3R were in accordance with article 20 of the PU Candy number 03 / PRT / M / 2013, so 12 villages were found to place TPS in Pamekasan sub-district , with the TOTAL 77 TPS trash cans.
Keywords: determination; environment; of GIS; TPS (waste)
Abstract:This study analyzes the judicial reasoning behind Putusan Pengadilan Negeri Sidoarjo No. 199/Pid.Sus/2023/PN Sda, a landmark decision involving corporate criminal liability for environmental violations in Indonesia. The…
case centers on PT Surya Prima Semesta’s illegal disposal of hazardous waste (fly ash and bottom ash) without an environmental permit, resulting in the prosecution of its corporate director. Employing a normative juridical method, the research examines the court’s application of doctrines such as strict liability and identification theory within the framework of Law No. 32 of 2009 on Environmental Protection and Management. The findings show that the court adopted a formalistic, text-based legal reasoning model, treating permit violations as inherently punishable acts regardless of actual environmental harm. While the decision reinforces regulatory compliance and affirms corporate culpability, it lacks engagement with broader organizational responsibility and foundational environmental law principles like the precautionary principle and sustainability. This study argues for a more integrated doctrinal approach one that balances rule-based logic with value-oriented reasoning to enhance legal consistency, advance environmental justice, and align Indonesia’s corporate accountability framework with international standards.
Abstract:According to the Jambi City Health Service Profile in 2021-2022, Putri Ayu Health Center is one of the inpatient health centers in Jambi City which is also acontributes the largest amount of medical waste with the amount…
of waste is 615 kg out of a total of 7804.1 kg of medical waste from health centers in Jambi City, so it has the potential to spread disease if medical waste is not managed properly. This research uses qualitative research methods with a descriptive approach. Data was obtained from 8 informants by conducting in-depth interviews and observations in May 2023 - April 2024 using qualitative research data analysis software. In the input aspect (1) Human Resources in the quantity aspect are sufficient, while the qualifications are not appropriate because they come from general administration. (2) Facilities and infrastructure are not sufficient and if there is damage, goods will be procured and reported to envinronmental health authority. Meanwhile, in the process aspect (3) Sorting is carried out by each waste producing poly unit by labeling the type of waste, date and poly, (4) The container used at the Putri Ayu Public Health Center meets the standards of Minister of Health Regulation Number 18 of 2020 (5) Transportation is carried out more than once every 2 days by PT Anggrek (6). Storage is carried out at TPS with a time span of 2-3 days at the latest. There are still input aspects that do not comply with standards (in the case of this research, namely the quality of human resources) causing disruption to process aspects, such as less than optimal management performance in managing medical waste in the container, transport and storage processes.