UMA - Open Access Journals (Universitas Medan Area)
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Enhancing Security and Efficiency of an IoT-Based Diesel generator Using AES Encryption
Get PDFThe Automatic Transfer Switch (ATS) system plays a crucial role in ensuring seamless power transfer between the main power source (PLN) and the backup generator (Diesel Generator), which requires real-time monitoring. PT Kereta Api Indonesia (Persero) utilizes diesel generators at strategic stations such as Kramasan Station to maintain operational continuity. This study aims to design and develop a monitoring system based on the Internet of Things (IoT) using the ESP8266 microcontroller connected to Firebase as a cloud storage platform, along with a mobile application for remote control and monitoring. The system is equipped with the PZEM-004T sensor to measure electrical parameters (voltage, current, power, and frequency), the HC-SR04 ultrasonic sensor to monitor fuel levels, and a DC voltage sensor to assess battery conditions. Data security is enhanced through encryption using the Advanced Encryption Standard (AES) algorithm before transmission to the cloud, and decrypted on the user application. Experimental results show that the system operates optimally, with relative error averages of 0.44% for voltage, 7.5% for current, 1.32% for power, and 4.00% for fuel level. The novelty of this research lies in the integration of an IoT-based ATS monitoring system with AES encryption for securing cloud data transmission, as well as the implementation of a multi-sensor approach in a single integrated and industry-applicable system. Therefore, the system has proven to be effective in improving the efficiency, security, and reliability of automatic diesel generator monitoring, and holds potential for broader industrial-scale implementation
Peran Pemimpin Dalam Meningkatkan Kinerja Pegawai Pada Inspektorat Kabupaten Mandailing Natal
No full textLeadership plays a crucial role in enhancing employee performance, particularly in government environments such as the Mandailing Natal Regency Inspectorate. This study aims to analyze the role of leaders in enhancing employee performance, describe the level of employee performance, and identify factors that act as obstacles to this process. This study employs a descriptive qualitative approach, utilizing data collection techniques that include observation, interviews, and documentation. The informants in this study include the Regional Inspector, the Assistant Inspector, the Head of the General and Personnel Subdivision, and several employees of the Mandailing Natal Regency Inspectorate. The results of the study show that leaders have three leading roles in improving employee performance, namely personal roles, decision-maker roles, and roles as sources of information. Inspectors play an active role in motivating, making strategic and participatory decisions, and filtering and conveying relevant information to employees. In addition, employee performance has generally improved, but there are still obstacles, including low work discipline, a lack of firmness in enforcing rules, and limited human resources and employee training.Kepemimpinan memiliki peran krusial dalam meningkatkan kinerja pegawai, terutama di lingkungan pemerintahan seperti Inspektorat Kabupaten Mandailing Natal. Penelitian ini bertujuan untuk menganalisis peran pemimpin dalam meningkatkan kinerja pegawai, mendeskripsikan tingkat kinerja pegawai, serta mengidentifikasi faktor-faktor yang menjadi hambatan dalam proses tersebut. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan teknik pengumpulan data melalui observasi, wawancara, dan dokumentasi. Informan dalam penelitian ini meliputi Inspektur Daerah, Inspektur Pembantu, Kasubbag Umum & Kepegawaian, serta beberapa pegawai Inspektorat Kabupaten Mandailing Natal. Hasil penelitian menunjukkan bahwa pemimpin memiliki tiga peran utama dalam meningkatkan kinerja pegawai, yaitu peran pribadi, peran pembuat keputusan, dan peran sebagai sumber informasi. Inspektur berperan aktif dalam memberikan motivasi, mengambil keputusan yang strategis dan partisipatif, serta menyaring dan menyampaikan informasi yang relevan kepada pegawai. Selain itu, kinerja pegawai secara umum mengalami peningkatan, namun masih terdapat kendala seperti rendahnya disiplin kerja, kurangnya ketegasan dalam penegakan aturan, serta keterbatasan sumber daya manusia dan pelatihan pegawai
The Role of the Pamong Praja Police Unit in the Control of Street Vendors (PKL) in Stabat District, Langkat Regency
Get PDFControlling street vendors (PKL) in Stabat District, Langkat Regency, is a crucial responsibility of the Civil Service Police Unit (Satpol PP) to ensure public order and maintain urban aesthetics. However, implementing this regulation is not without challenges, as it involves resistance from street vendors, limited relocation spaces, and socio-economic concerns that affect their livelihoods. This study aims to analyze the performance of Satpol PP in controlling street vendors and identify the factors influencing the success or failure of these efforts. A descriptive research approach was adopted, utilizing interviews, observations, and document analysis as data collection methods. Data were gathered through interviews with government officials, community leaders, and street vendors in Stabat District. The findings indicate that while Satpol PP has carried out its duties effectively, certain obstacles persist. Beyond enforcing regulations, Satpol PP also plays a role in providing guidance and counseling to street vendors, ensuring they understand legal provisions. Additionally, the unit collaborates with relevant agencies and local communities to implement orderly street vendor management. Nevertheless, enforcement efforts continue to face resistance from vendors, insufficient relocation facilities, and a lack of legal awareness among traders. Many street vendors struggle to adapt to new locations due to accessibility concerns, impacting their ability to sustain their businesses. These findings highlight the need for a more integrated approach in street vendor regulation, balancing law enforcement with economic and social considerations
Strategy of the General Election Commission of Mandailing Natal Regency in Socializing the 2024 General Election
Get PDFThis study focuses on the challenges in socializing the 2024 General Election in Mandailing Natal Regency, influenced by the diverse geography, ranging from coastal to mountainous regions. This creates accessibility issues, especially in remote areas, requiring extra time and cost and having limited infrastructure. The research aims to analyze the strategies the General Election Commission (KPU) implemented in socializing the 2024 General Election and the barriers faced. Based on Chandler's theory (2015), the results show that the KPU's strategies have been effective, with volunteer programs involving religious communities, such as Islamic boarding schools. The appropriate actions also contribute to increasing public understanding of the election process. However, resource allocation presents a challenge, as evidenced by Adhoc Committee members' lack of emotional attachment, not having strong ties to the organization, limited funding, and insufficient understanding among Adhoc members. More intensive training is needed to address these challenges
Upaya Mempertahankan Bangunan Heritage di Kawasan Kampung Peneleh Kota Surabaya Sebagai Identitas Kawasan
Get PDFThe city of Surabaya is a city with long historical value. Even today, many heritage areas are still maintained with the aim of preserving culture, one of which is Kampung Peneleh which has many heritage buildings. Heritage buildings are buildings with historical value inherited from the past. The existing buildings form an identity as the historic area of Kampung Peneleh, the identity of the area in question is a form of characteristic of an area. Kampung Peneleh has been designated as a historical area based on the Decree of the Mayor of Surabaya number 188.45/004/402.1.04/1998. This research aims to determine the efforts of the people of Kampung Peneleh to maintain their historical values. This research uses an observation method by observing how the people of Kampung Peneleh are able to maintain their historical value and analyzing the buildings in Kampung Peneleh so that they can determine the identity of the area. The results obtained from this research are the identification of heritage buildings in Kampung Peneleh and the efforts of the local community and government to maintain the identity of the Kampung Peneleh area
Analisis Yuridis Akta Kesepakatan Dalam Transplantasi Ginjal Antara Calon Donor Dan Resipien (Tinjauan Dari Perspektif Hukum Indonesia): Legal Analysis Of The Deed Of Agreement In Kidney Transplantation Between Prospective Donor And Recipient (Review From Indonesian Legal Perspective)
Get PDFThis study aims to analyze organ transplantation, especially the transfer of organs from living donors to recipients, which is one of the main therapies for patients with chronic kidney failure which aims to restore the patient's quality of life. In Indonesia, the implementation of organ transplantation still relies on living donors and has been regulated in laws and regulations that include provisions regarding the implementing hospital, the implementing medical team, and the advocacy team. The advocacy team plays a role in ensuring that the transplantation process runs without elements of commercialization and exploitation, and guarantees the fulfillment of the rights and obligations of prospective donors and their families. The legal problems that arise are how the legality and strength of the evidentiary deed of agreement between the donor and recipient as written evidence, and how it is protected in preventing illegal practices such as organ trafficking. This study uses a normative juridical method with a statutory regulatory approach and legal document studies, and is analyzed qualitatively. The results of the study indicate that the deed of agreement has a strategic position as valid legal evidence, as well as an instrument of ethical and legal protection for all parties involved in the transplant procedure. Therefore, a properly drafted deed of agreement not only fulfills the formal legal aspects, but also plays an important role in maintaining the integrity of the organ transplantation process in Indonesia
Pelayanan Akademik Berbasis Budaya SIPA’MANDAR Pada Fakultas Keguruan Dan Ilmu Pendidikan Universitas Sulawesi Barat
Get PDFPenelitian ini bertujuan untuk mengetahui pelayanan akademik berbasis budaya Sipa’mandar, faktor pendukung pelayanan akademik berbasis budaya Sipa’mandar, serta faktor penghambat pelayanan akademik berbasis budaya Sipa’mandar di FKIP Universitas Sulawesi Barat. Penelitian menggunakan metode kualitatif disajikan secara deskriptif. Teknik pengumpulan data melalui pembagian angket kepada mahasiswa, melakukan wawancara dan observasi kepada mahasiswa, tenaga pendidik dan budayawan serta dokumen informasi. Hasil dari angket untuk semua prodi berjumlah 125 orang menunjukkan bahwa mahasiswa setuju terkait dengan elaborasi pelayanan akademik terkait budaya Sipa’mandar. Hasil wawancara yang dilakukan dengan berbagai informan menunjukkan bahwa secara umum tenaga kependidikan telah menerapkan prinsip-prinsip budaya Sipa'mandar dalam pelayanan akademik. Hasil temuan penelitian ini menunjukkan bahwa kualitas layanan akademik yaitu aspek fisik, konsistensi, responsive, kepercayaan, empati yang kemudian di elaborasi ke dalam budaya sipa’mandar terkandung sifat budaya lokal yang terdiri dari sirondo-rondoi, Siamasei, Sianuang pa’mai, Siri’ sudah di laksanakan di Fakultas Keguruan Dan Ilmu Pendidikan Universitas Sulawesi Barat. Faktor pendukung pelayanan Akademik Berbasis Budaya Sipa’mandar di FKIP Universitas Sulawesi Barat adalah SDM tenaga pendidik yang semuanya terampil serta teknologi dan sistem informasi yang memadai sedangkan aktor penghambat pelayanan Akademik Berbasis Budaya Sipa’mandar FKIP Universitas Sulawesi Barat adalah Sarana dan prasarana
The Influence of AI-Based Shopping Experience on Consumer Value through Cognition and Attitude
Get PDFRapid advances in artificial intelligence (AI) have transformed online retail, yet many studies still empha-sise technical performance rather than the psychological mechanisms through which AI-driven experi-ences shape consumer value. This gap is evident in emerging markets such as Indonesia, where enthuse-asm for AI coexists with persistent concerns about data transparency and system reliability. Addressing this issue, the present study examines how AI-based shopping experiences influence consumer value by incorporating two mediating variables: AI Cognition, consumers’ understanding, Cognitive Load, Deci-sion Making, and Cognitive Bias in AI, and Attitude toward AI, which reflects their emotional and evalua-tive responses. A quantitative survey involving 150 active e-commerce users who had interacted with AI features (recommendation systems, chatbots, and personalisation tools) was analysed using SEM–PLS. The findings show that AI-based shopping experiences significantly enhance consumer value, both di-rectly and indirectly. Among the mediators, Attitude toward AI emerged as the dominant pathway, indi-cating that emotional acceptance plays a more influential role than cognitive appraisal in translating AI-driven experiences into perceived value. These results highlight that strengthening users’ emotional comfort and positive evaluations of AI is essential for maximising value creation, offering important im-plications for both theory and the design of consumer-centred AI systems
The Influence of Internal Environmental Factors in Coffee Farming on Farmer Participation in Farming Groups in Sub-district of Ronggur Nihuta, Samosir District
No full textThis research will focus on PTPN IV Regional II with the aim of exploring priority strategies that can be applied to obtain RSPO certification. With a systematic approach, this study is expected to provide practical benefits for the company and contribute to the literature in the field of agribusiness sustainability strategy. Data collection uses primary data and secondary data with a SWOT analysis approach and QSPM analysis. Increasing the number of RSPO-certified units in 1-2 years. Reducing certification costs by 15% through collaboration or clustering. Increase in demand for certified products in the global market by at least 10% per year. SWOT analysis to make a plan must evaluate external and internal factors. The QSPM analysis stage is Determining EFEM, at this stage external factors are determined and evaluated. Determining IFEM, at this stage internal factors are determined and evaluated. The results of the study indicate that the partnership strategy with certification bodies and the utilization of technological advances are the main priorities to support the success of PTPN IV in obtaining RSPO certification. This strategy plays an important role in strengthening the company's position in the global market while achieving sustainability goals. With a structured and measurable approach, PTPN IV can not only obtain RSPO certification, but also improve its reputation as a leader in the sustainable palm oil industry. Strengthening internal capacity through HR training and cost efficiency are key factors in facing the challenges of certification costs and regulatory pressures. In addition, market diversification helps companies mitigate the risk of dependence on certain markets, such as Europe.This research aims to determine the influence of internal environmental factors in coffee farming on farmer participation in farmer groups. The research was conducted in Sub-district of Ronggur Nihuta, which was determined purposively. The population of this research is people who are developing coffee farming and are members of farmer groups in 2 villages in Sub-district of Ronggur Nihuta with a total of 88 heads of families and a sample determined of 30 respondents. The data used in the research are primary and secondary data which were analyzed quantitatively using multiple linear regression analysis. Based on the research results, it was concluded that internal environmental factors; interest, creativity, potential natural resources/land, availability of infrastructure have a positive and significant effect on farmer participation in farmer groups in Sub-district of Ronggur Nihuta. Based on the suggested conclusion; a) for the government through related agencies to provide education to farmers in developing good and environmentally friendly coffee farming in a programmed and sustainable manner; b) for coffee farmers to join and be active in farmer groups to increase farmers' understanding regarding the development of intensive and environmentally friendly coffee farming
Bagaimana Daya Saing Ekspor Minyak Sawit Mentah Negara ASEAN di Pasar India dari 2011 hingga 2022?
No full textIndia is the world's largest importer of Crude Palm Oil (CPO), holding a market share of 20% in 2022, making it a highly significant market for CPO-producing countries, including ASEAN nations. CPO serves as a primary export commodity for Indonesia, Malaysia, and Thailand. This study aims to analyze the export competitiveness of CPO from ASEAN countries to India using the Relative Comparative Advantage (RCA) method. Export volume data from 2011 to 2022 were analyzed to comprehend the trade dynamics and competitive positions of ASEAN countries in the Indian market. The research findings indicate that Indonesia boasts the highest comparative advantage with an average RCA value of 18.25, followed by Malaysia (15.76), Cambodia (14.79), Thailand (2.15), and the Philippines (2.46). Overall, ASEAN countries demonstrate a comparative advantage in the Indian market with an average RCA value of 8.60. These findings offer crucial insights for policymakers and industry stakeholders to enhance the export competitiveness of CPO in the international market. This study contributes significantly to understanding the CPO trade dynamics between ASEAN countries and India, providing a foundation for more effective policy formulation to improve market positioning and export competitiveness of CPO in the global market.India merupakan importir terbesar Crude Palm Oil (CPO) di dunia, dengan pangsa pasar mencapai 20% pada tahun 2022, menjadikannya pasar yang sangat signifikan bagi negara-negara produsen CPO, termasuk negara-negara ASEAN. CPO merupakan komoditas ekspor utama bagi Indonesia, Malaysia, dan Thailand. Penelitian ini bertujuan untuk menganalisis daya saing ekspor CPO dari negara-negara ASEAN ke India menggunakan metode Relative Comparative Advantage (RCA). Data volume ekspor CPO dari tahun 2011 hingga 2022 dianalisis untuk memahami dinamika perdagangan dan posisi kompetitif negara-negara ASEAN di pasar India. Hasil penelitian menunjukkan bahwa Indonesia memiliki keunggulan komparatif tertinggi dengan nilai RCA rata-rata sebesar 18,25, diikuti oleh Malaysia (15,76), Kamboja (14,79), Thailand (2,15), dan Filipina (2,46). Secara keseluruhan, negara-negara ASEAN menunjukkan keunggulan komparatif di pasar India dengan nilai RCA rata-rata sebesar 8,60. Temuan ini memberikan wawasan penting bagi pembuat kebijakan dan pemangku kepentingan industri dalam meningkatkan daya saing ekspor CPO di pasar internasional. Studi ini memberikan kontribusi penting dalam memahami dinamika perdagangan CPO antara negara-negara ASEAN dan India, serta memberikan landasan untuk formulasi kebijakan yang lebih efektif dalam meningkatkan posisi pasar dan daya saing ekspor CPO di pasar global