Portal E-Journal System PNUP (Politeknik Negeri Ujung Pandang)
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Pengaruh Kompensasi terhadap Kepuasan Kerja Karyawan pada PT Deltra Jaya Karya Makassar
Full text linkThis research aims to determine 1) the provision of employee compensation at PT Deltra Jaya Karya Makassar; 2) employee job satisfaction at PT Deltra Jaya Karya Makassar; 3) the effect of compensation on employee job satisfaction at PT Deltra Jaya Karya Makassar. This study uses a quantitative approach with data collection methods using questionnaires and interviews. The sample in this study amounted to 35 respondents taken using the saturated sample method. Data analysis was carried out by simple regression analysis using SPSS Version 30 for windows. Testing of the questionnaire used validity and reliability tests. The inferential statistical analysis used in this study was simple linear regression, t-test, determination coefficient analysis (r2), and Spearman test. The results of this study indicate that 1) the provision of employee compensation at PT Deltra Jaya Karya Makassar is very good, 2) employee job satisfaction at PT Deltra Jaya Karya Makassar is very good, 3) compensation has an effect on employee job satisfaction at PT Deltra Jaya Karya Makassar
Desain dan Pengembangan Sistem Pemantauan Volume Bahan Bakar untuk Peningkatan Manajemen Bahan Bakar Kapal
No full textThis research aims to design and develop a fuel volume monitoring system for maritime applications, focusing on improving fuel management on ships. The system utilizes ultrasonic, capacitive, and temperature sensors to accurately measure fuel volume and provide real-time data. The methodology involved designing the system components, selecting appropriate sensors, developing a prototype, and conducting several tests including accuracy, real-time performance, durability in maritime conditions, and user feedback. The results show that the system provided highly accurate fuel volume readings, with discrepancies below 0.3% compared to manual measurements. Real-time monitoring was successfully implemented, enabling operators to track fuel levels and consumption trends efficiently. The system also demonstrated durability under harsh environmental conditions, including high humidity, temperature variations, and vibrations. Feedback from ship operators indicated that the system’s interface was user-friendly, and it contributed to better fuel management, reducing waste and optimizing usage. The research concludes that the developed system has the potential to significantly enhance fuel management practices in the maritime industry, leading to cost savings and improved sustainability. Suggestions for future improvements include system integration with other ship management systems and the incorporation of wireless communication features for remote monitoring.Penelitian ini bertujuan untuk merancang dan mengembangkan sistem pemantauan volume bahan bakar untuk aplikasi maritim, dengan fokus pada peningkatan manajemen bahan bakar di kapal. Sistem ini menggunakan sensor ultrasonik, kapasitif, dan suhu untuk mengukur volume bahan bakar secara akurat dan menyediakan data waktu nyata. Metodologinya meliputi perancangan komponen sistem, pemilihan sensor yang sesuai, pengembangan prototipe, dan pelaksanaan beberapa pengujian termasuk akurasi, kinerja real-time, ketahanan dalam kondisi maritim, dan umpan balik pengguna. Hasilnya menunjukkan bahwa sistem memberikan pembacaan volume bahan bakar yang sangat akurat, dengan perbedaan di bawah 0,3% dibandingkan pengukuran manual. Pemantauan real-time berhasil diterapkan, memungkinkan operator melacak tingkat bahan bakar dan tren konsumsi secara efisien. Sistem ini juga menunjukkan ketahanan dalam kondisi lingkungan yang keras, termasuk kelembapan tinggi, variasi suhu, dan getaran. Masukan dari operator kapal menunjukkan bahwa antarmuka sistem ini ramah pengguna, dan berkontribusi terhadap pengelolaan bahan bakar yang lebih baik, mengurangi limbah, dan mengoptimalkan penggunaan. Penelitian ini menyimpulkan bahwa sistem yang dikembangkan mempunyai potensi untuk meningkatkan praktik pengelolaan bahan bakar di industri maritim secara signifikan, sehingga menghasilkan penghematan biaya dan peningkatan keberlanjutan. Saran untuk perbaikan kedepannya antara lain integrasi sistem dengan sistem manajemen kapal lainnya dan penggabungan fitur komunikasi nirkabel untuk pemantauan jarak jauh
Rancang Bangun Pembangkit Listrik Tenaga Surya untuk Kebutuhan Rumah Kebun di Kabupaten Selayar
Full text linkSolar Power Plants (PLTS) are renewable-based electricity systems for areas not yet reached by the national grid. This study aims to design and test a small-scale PLTS system for lighting a farm house in Selayar Regency. The system consists of a 100 Wp solar panel, a PWM 10A charge controller, LiFePO4 batteries, and 30–40 W LED loads. The research method includes system design, assembly, and performance testing. The results show that the solar panel produced a voltage of 13.2–13.6 V, solar radiation intensity of 560–1235 W/m², and an average efficiency of 11.71%. The system meets daily energy needs of 1.260 Wh and provides lighting for 12 hours per night. This PLTS system proves effective as a clean energy solution for remote area
Microcontroller-Based Smart Control System for Automatic Lighting and Air Conditioning Control in Campus Facilities
Full text linkEnergy inefficiency in campus facilities often arises from lights and air-conditioning (AC) systems operating without occupancy, leading to unnecessary electricity consumption. To address this issue, this research develops a microcontroller-based smart control system designed to automate lighting and AC operation using human-presence detection. The purpose of this study is to create and evaluate an ESP32-based automation system equipped with PIR HC-SR501 sensors and relay modules, complemented by IoT-enabled monitoring through Telegram notifications. The methodology includes system analysis, hardware and software design, prototype development, and performance testing in a classroom at Politeknik ATI Makassar. The ESP32 processes PIR sensor inputs to activate or deactivate loads based on detected movement, while Telegram provides real-time status updates. System evaluation focused on sensor detection accuracy, response time, relay reliability, and overall energy reduction. Experimental results show that the PIR sensor achieves over 90% detection accuracy within 4 meters and 30° viewing angle, with a response time of approximately 0.9 seconds. The automated control reduced daily operating time of lighting and AC units from 5.2 hours to 8 hours, yielding an estimated energy saving of 2.1 kWh per day—or about 27% reduction in power consumption. Telegram notifications demonstrated >98% accuracy, ensuring reliable remote monitoring. This research highlights the positive impact of integrating microcontroller-based automation and IoT monitoring for creating energy-efficient, smart-campus environments. The system offers a scalable solution for reducing operational costs, improving sustainability, and enhancing facility management in educational institutions
PEMANFAATAN LIMBAH ENGINE SEPEDA MOTOR SEBAGAI PENGGERAK UTAMA MESIN PENYEMPROT TANAMAN UNTUK MENINGKATKAN PRODUKTIFITAS DAN EFISIENSI PENYIRAMAN DI KELOMPOK TANI SUMBER REJEKI DESA KAMPONG TUHA BENSAMAR KEC. TENGGARONG KAB. KUTAI KARTANEGARA
Full text linkThe use of motorcycle engine waste as the main driver of the plant sprayer machine was developed to increase the productivity and efficiency of watering in the Sumber Rejeki Farmers Group, Kampong Tuha Bensamar Village, Tenggarong District. The method of activities includes identification of field needs, design and fabrication of tools in campus workshops, bench tests, as well as field tests and operational training for farmers. The test compares manual and machine watering on an area of 50 m²; The parameters measured include area coverage (m²/min), fuel consumption (mL/min) and cost requirements. The average manual watering test result is 12 minutes, while the machine only takes 4 minutes, this can save watering time by up to 67% while the average fuel consumption is 15 mL/min. The use of motorcycle engine waste as the main driver of plant spraying machines has been proven to increase the efficiency and productivity of watering in the Sumber Rejeki Farmers Group, Kampong Tuha Bensamar Village. This innovation not only supports the principles of a circular economy and is environmentally friendly, but also strengthens the independence of agricultural technology at the village level
Rancang bangun Mesin Pengayak dan Pencampur Bahan Media Tanam Jamur Tiram
Full text linkpengayak dan pencampur bahan media tanam jamur tiram merupakan mesin yang digunakan untuk menghasilkan campuran media tanam yang lebih homogen sehingga dapat meningkatkan kapasitas produksi Jamur Tiram. Tujuan yang ingin dicapai dalam penelitian rancang bangun mesin pengayak dan pencampur bahan media tanam jamur tiram ini yaitu untuk meningkatkan kapasitas produksi media tanam dan meningkatkan kualitas produk media tanam. Tahapan peniltian ialah identifikasi masalah, perancangan, pembuatan, perakitan, pengujian dan analisi data hasil pengujian. Metode penelitian yang dilakukan adalah pemilihan tempat dan waktu, alat dan bahan, prosedur perancangan dan pembuatan, dan pengambilan data. Metode pengambilan data dilakukan dengan cara pengambilan sampel pada beberapa area pada wadah pengadukan dan dilakukan analisis pada hasil campuran dengan menggunakan alat mikroskop. Kesimpulan dari hasil penelitian ini telah dihasilkan mesin pengayak dan pencampur bahan media tanam jamur tiram dengan kapasitas pengayakan untuk sekali proses pengayakan serbuk kayu sebanyak 20 kg pada putaran 187 rpm diperoleh hasil terayak semua dalam waktu 1 menit 12 detik dan Pada putaran 55 rpm diperoleh hasil yang homogen dengan waktu pencampuran 5 menit dengan kapasitas wadah maksimal yang dapat dihasilkan oleh mesin adalah 372 kg/ jam.
Kata Kunci: Mesin pengayak dan pencampur, jamur tiram, media tanam, efektif, efisien
Developing Learner Autonomy: Moroccan University EFL Teachers’ Perceived Views and Practices
No full textLearner autonomy, or the ability to take control of one’s learning, has been in emergence for decades, and its importance has been widely acknowledged. However, there remains obscurity as to what teachers think about this concept and whether or not they are willing to promote it. Accordingly, this paper aimed to investigate 21 university professors’ views regarding their understanding of learner autonomy and the principles underlying it. The study used a mixed-method approach to provide rigorous analysis of the professors’ responses. Data were collected through a questionnaire after which ten professors were invited for a semi-structured interview to allow for more explanations of the views analyzed, thus adhering to the explanatory sequential design. Findings demonstrated that professors showed an understanding of the basic characteristics of learner autonomy. While each of the four orientations were maintained, the most supported was the technical orientation followed by the psychological orientation, a finding that was corroborated by the qualitative analysis wherein notions such as ‘motivation’, ‘metacognitive strategies’, and ‘decisions’ recurred. It was observed that their views were far less socially driven. This study has various implications for both theory and practice, particularly for EFL teachers both in this context and in other similar contexts
Empowering Regional Tourism Stakeholders through Cooperative Learning: A Case Study Approach
Full text linkTourism holds great potential for regional development, particularly in culturally rich but underdeveloped areas like Enrekang Regency, South Sulawesi, Indonesia. However, limited human capital and fragmented stakeholder collaboration often hinder growth. This study explores the integration of the Cooperative Learning (CL) model into tourism education to enhance student competencies and support community-based tourism (CBT) development. Using a qualitative case study approach, data were collected through classroom observations, focus group discussions, and interviews with educators, students, tourism practitioners, and government officials. The findings reveal that CL significantly increased student engagement, strengthened English communication, leadership, and teamwork skills, and empowered students to lead real-world projects. These included the creation of 12 local tour packages, 7 digital promotional videos used by tourism offices, and the coordination of 5 village tourism events, contributing to increased local tourism visibility. Institutional support and cross-sector collaboration emerged as key success factors. The study concludes that embedding CL in tourism education not only enhances academic outcomes but also creates meaningful contributions to local tourism development. The model presented offers a replicable framework for aligning education with regional development goals, particularly in rural areas where tourism potential remains untappe
Pengembangan Sistem Kontrol Mesin CNC Training Unit 3 Axis
Full text linkThis research aims to upgrade the TU-3A CNC machine control system using the Mach3 microcontroller so that it can improve the feeding shape that is able to support CAD CAM technology, Measure and analyze the precision of the machine axis movement, Calculate and analyze the cost of developing a 3 Axis CNC Training Unit machine control system. This research was conducted through several stages of literature study, design, overhaul, manufacture, assembly, testing and data analysis. The research method carried out is upgrading the control system by changing the control system using a Mach3 microcontroller, measuring and analyzing and analyzing the precision of the machine axis movement with a dial indicator measuring instrument and a 0.05 accuracy caliper. The material used for testing is soft material such as Teflon, aluminum and acrylics, with the results showing that the TU-3A CNC machine can produce products with the expected precision. The conclusion of this research has resulted in the development of a 3 Axis CNC Training Unit machine using a Mach3 microcontroller so that it can improve the shape of the feed that is able to support CAD CAM technology and produce products from acrylic and aluminum materials. Measurement and analysis of data testing the precision of the machine axis movement, it is known that the deviation in the X, Y, and Z axes on the TU-3A Mach3 CNC machine is smaller than the deviation on the TU-3A EMCO CNC machine
Perencanaan PLTS Rooftop pada Wisata Pulau Gusung Toraja
No full textThis study aims to determine the capacity of rooftop solar power plants to meet electricity needs on Gusung Toraja Island, design appropriate technical designs, and analyze the technical, economic, and environmental feasibility of the project. The method used is quantitative research with modeling using PVsyst, AutoCAD, and SketchUp software. Data were collected through interviews and observations. The design results show a power capacity of 5 kWp, energy production of 7,842 kWh/year, and an initial investment cost of IDR 197,117,200. Economic analysis shows an NPV of IDR 313,256,802 and a payback period of 15 years and 4 months, with an annual energy cost of IDR 3,714/kWh. PV system simulation produces an energy cost of IDR 1,296/kWh, an NPV of IDR 196,859,802, and a payback period of 12.2 years. With a positive NPV, a payback period shorter than the project life, a Profitability Index (PI) of 1.6, and an IRR higher than the interest rate, this investment is declared feasible and sustainable