Portal E-Journal System PNUP (Politeknik Negeri Ujung Pandang)
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PENYEMPROTAN PESTISIDA MENGGUNAKAN AGRO-DRONE PADA DESA MAJANNANG KECAMATAN PARIGI KABUPATEN GOWA
Get PDFThe purpose of this community service activity is to increase insight and help farmers of Majannang Village, Parigi District, Gowa Regency in managing their agricultural land using one of the smart agriculture system technologies that are currently being applied in several regions in Indonesia, namely using agricultural drones (agro-drones). The stages of implementing activities are preparation, procurement of tools and materials, assembly and testing of agro-drones, implementation of service activities, preparation of reports and publication of activities. Implementation of activities in the field, the Agro- drone PPDM team sprayed pesticides on 3 farmers' rice fields by spending 1 liter of pesticide mixture. The area of rice fields that were sprayed was around 180 m2 with a spraying time of only about 9 minutes. The condition of the rice fields that are terraced and twisted is an obstacle in itself so that it causes a little difficulty in completing the spraying so that the implementation of this spraying is not optimal. However, the partners felt the benefits of this service activity and really hope that this activity will continue in the future.
Keywords: Sensor, Actuator, Smart-Agriculture, Agro-drone, Majannang Villag
Analisis Perancangan Fondasi Tiang Pancang Pada Proyek Pembangunan Gedung Parkir Rumah Sakit Primaya Menggunakan Software Plaxis
Get PDFRumah Sakit Primaya merupakan infrastruktur kesehatan di kota Makassar, yang memiliki permasalahan penyediaan lahan parkir karena lahan parkir yang tersedia sudah tidak mampu menampung perparkiran yang dibutuhkan. Untuk itu dibutuhkan sebuah gedung parkir bertingkat. Berdasarkan data pembebanan dan lapisan tanahnya, maka diperlukan penggunaan fondasi tiang pancang. Salah satu software yang digunakan untuk menyelesaikan analisis desain fondasi tiang adalah Software Plaxis 2D. Penelitian ini bertujuan untuk mendesain fondasi tiang pancang dengan menggunakan Software Plaxis 2D, dimana hasilnya akan diverfikasi dengan analisisi manual. Analisis Software Plaxis 2D terdiri dari empat buah sub-program yaitu input data, perhitungan (calculation), keluaran (output), dan kurva. Analisis manual menggunakan metode Meyerhof 1976 untuk daya dukung, metode Vesic 1977 dan Vesic 1970 untuk penurunan, metode Brooms 1964 untuk analisis lateral dan pergerakan lateral. Perhitungan dilakukan pada tiga titik yaitu AS O-25, L-22, dan L-26 dengan hasil data lapangan pengujian SPT. Hasil penelitian diperoleh fondasi spun pile dengan diameter tiang 0,5 m dan diperoleh 4 tiang untuk AS O-25, 2 tiang untuk AS L-22, dan 2 tiang untuk AS L-26. Hasil analisis Software Plaxis 2D diperoleh lebih besar dari analisis manual namun perbedaanya tidak terlalu signifikan. Sehingga perancangan fondasi menggunakan metode permodelan Software Plaxis 2D relatif aman dan efisien
Kata Kunci : Tiang Pancang, Software Plaxis 2D, Spun Pil
Analisis Pengaruh Pembebanan Terhadap Efisiensi Sistem Pada PLTA Malea 2x45 MW
Get PDFPenelitian ini bertujuan untuk menganalisis efisiensi sistem pada Pembangkit Listrik Tenaga Air (PLTA) Malea yang terletak di Toraja, Sulawesi Selatan, dengan kapasitas total 2x45 MW. Data yang digunakan dalam penelitian ini diambil dari logsheet harian selama periode 6 hingga 12 Maret 2024, yang mencakup parameter penting seperti debit air, beban yang diterima oleh turbin, dan output daya. Hasil analisis menunjukkan bahwa efisiensi sistem mencapai nilai tertinggi sebesar 83% pada unit 1 dalam kondisi beban optimal, sementara unit 2 menunjukkan efisiensi maksimum sebesar 82%. Penelitian ini mengidentifikasi bahwa efisiensi sistem dipengaruhi oleh berbagai faktor, termasuk tingkat pembebanan, spesifikasi teknis dari turbin dan generator, serta praktik pemeliharaan yang dilakukan. Ditemukan pula bahwa efisiensi turbin dan generator memiliki korelasi yang signifikan terhadap efisiensi sistem secara keseluruhan. Semakin tinggi efisiensi turbin dalam mengubah energi potensial air menjadi energi mekanik, dan semakin efisien generator dalam mengubah energi mekanik menjadi energi listrik, maka efisiensi sistem unit juga akan meningkat.Temuan ini memberikan wawasan yang signifikan bagi pengelolaan dan pengoperasian PLTA Malea, serta menekankan perlunya strategi pemeliharaan yang efektif untuk meningkatkan efisiensi sistem secara keseluruhan. Penelitian ini berkontribusi pada upaya peningkatan kinerja PLTA sebagai sumber energi terbarukan yang berkelanjutan di Indonesia
Design of Microstrip Antenna Array for 5G Communication Systems
Get PDFFor the time being, the fifth generation (5G) communication system has been realized in many countries and the number of 5G subscribers is very large. Unlike previous generations that only focused on improving network capacity, the 5G communication systems extends telecommunication services from humans to objects (things), and also from consumers to industries. This enables a wide range of services from conventional mobile broadband to industry 4.0, virtual reality (VR), Internet of Things (IoT), and automatic driving. The values of 5G services and applications greatly support the mobility and flexibility of today's customers such as remote surgery in hospitals, online education, driverless vehicles, unmanned delivery, robots, smart healthcare, industrial automation. This study presents the design and realization of a 4×4 rectangular microstrip antenna array. This antenna can be applied to support 5G communication. The antenna array configuration is arranged uniformly. For antenna excitation, an inset feed transmission line is employed to each antenna element. The antenna array has been validated and works at a frequency of 2.3 GHz, with an HPBW of 30° in the E-plane. Meanwhile, based on measurements, the gain and bandwidth values are 13.51 dBi and 100 MHz respectively
Classroom Praxis of Applied Oral Communication Strategies in Enhancing English Speaking Skills in Indonesian Secondary School
Get PDFSpeaking is widely recognized as one of the most challenging skills for EFL students to acquire, due to its demand for real-time language processing, confidence, and adequate linguistic resources. This mixed-method study investigates students’ perceived difficulties in speaking English, combining questionnaire data from 91 participants and semi-structured teacher interviews as the instruments. Quantitative findings reveal that learners experienced significant affective barriers, including low self-confidence, fear of making mistakes, and nervousness when speaking in front of others. Linguistic limitations, particularly restricted vocabulary and pronunciation challenges, were also found to disrupt fluency and promote reliance on first-language translation. Furthermore, insufficient opportunities to practice speaking and limited support outside the classroom emerged as additional constraints. The qualitative data reinforced these issues, pointing to motivational gaps and institutional limitations. The findings provide valuable insights into the multifaceted nature of speaking difficulties and suggest actionable pedagogical responses. Drawing on theories of Foreign Language Classroom Anxiety and sociocultural learning, the study emphasizes the need for learner-centered instruction that fosters emotional security, meaningful interaction, and increased speaking opportunities. These include the integration of digital tools to reduce anxiety, implementation of peer interaction activities, pronunciation-focused tasks, increased speaking time in lessons, and more structured teacher feedback practices. The study also points to the potential of longitudinal research to track the development of speaking proficiency over time.
Keywords: EFL learners, speaking anxiety, linguistic challenges, classroom interaction, language learnin
Trends, Challenges, and Benefits of the Flipped Classroom Model in EFL Context: A Systematic Literature Review
Get PDFThis research aims to do a thorough evaluation and analysis of the trends, challenges, and benefits of Flipped Learning (FL) instruction within the English as a Foreign Language (EFL) setting. Instructional techniques in the EFL environment have been attempting to transition from a teacher-centered approach to a student-centered one. Emerging technology has enabled EFL educators to contemplate the FC model to achieve their educational aims. This study seeks to examine the current literature on the FL approach within the EFL setting and offers instructional recommendations for EFL trainers. This report synthesizes global quantitative and qualitative studies on flipped learning within the EFL context. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) is utilized for selection, screening, and reporting objectives. This study investigated chosen articles published throughout the last ten years (2014-2024), culminating in the inclusion of 88 articles for comprehensive analytical examination. There has been a heightened prevalence of flipped learning in the EFL context since 2020. The analysis indicated that the majority of studies on Flipped Learning within the EFL environment concentrated on students' language competencies, engagement, and academic performance. To enhance the evidence base and facilitate wider, context-aware adoption, future research should explore under-explored domains, diversify methodologies (particularly longitudinal and comprehensive qualitative designs)
PENINGKATAN KESADARAN BERKENDARA AMAN MELALUI SOSIALISASI KESELAMATAN BERLALU LINTAS DI SMA NEGERI 21 KOTA MAKASSAR
Get PDFTraffic accidents remain a significant public concern in Makassar City, particularly among high school students who are highly vulnerable to road incidents. This Community Partnership Program (PKM) aimed to enhance students’ awareness and knowledge of traffic safety through an interactive and research-based educational approach. The program was carried out at SMA Negeri 21 Makassar in collaboration with the Makassar Transportation Agency, the City Police, and PT. Jasa Raharja. The implementation method consisted of several stages: initial coordination and field survey, preparation of educational modules and media validated by partners, and interactive socialization activities at the school. The socialization included presentations, educational videos, discussions, quizzes, and traffic simulations. A total of 100 participants, including students and teachers, actively engaged in the activities. The results indicated that the interactive methods significantly improved participants’ enthusiasm and understanding of safe driving behavior. Moreover, the program provided project-based learning experiences for students and strengthened the synergy between higher education institutions and local government in fostering a culture of traffic safety
PKM PEMBERDAYAAN N’CENGA CAKE MELALUI PELATIHAN TATA KELOLA USAHA DI KECAMATAN MANGGALA KOTA MAKASSAR
Get PDFThe purpose of this community services is to provide training related to calculating the cost of production, determining selling prices, prepare financial reports using the excel application, products marketing using social media, making business proposal and business letters. This service was attended by 10 people. The results of community service activities help the 'N’Cenga Cake’ business increase knowledge and expertise regarding abilities and skills in compiling financial reports using Excel applications, increasing partners' ability to find out business profits earned during one year. Regarding product marketing with social media to reach a wider marketing area, the appearance of the product that will be posted is more attractive. Meanwhile, making business letters makes it easier for partners to offer their products to gift shops and supermarkets, then making business proposals helps partners to make proposals for financial assistance to the government and companies that support the development of small and medium businesses. The expected output from this training is increasing knowledge and skills in financial management, marketing products widely using social media and creating business letters and business proposals.
Keywords: N’ Cenga Cake, Financial Management, social media, Business letters, business proposa
PELATIHAN AKUNTANSI DAN PEMBUKUAN PADA ANGGOTA KELOMPOK BANK SAMPAH DI KELURAHAN MANURUKKI KOTA MAKASSAR
Get PDFThe aim of this activity is to provide socialization, training and assistance in bookkeeping and making simple financial reports to Waste Bank groups in Manurukki Village, Makassar. Waste bank operators still have difficulty determining business profits from the waste management activities they collect. Therefore, accounting and bookkeeping training is needed for members of the waste bank group in Manurukki Village, Makassar City. This activity was carried out in the form of training using the lecture method, question and answer, practice questions, feedback, and assistance to members of the Mannuruki sub-district waste bank group. This activity is located at Max Hotel Topaz Panakukang, Makassar. This activity has transferred new knowledge and skills to the waste bank group in determining profits from their waste bank activities. The material provided to partners includes firstly the basic accounting equation, secondly creating account numbers and names, thirdly identifying transactions, fourthly recording transactions or journals, fifthly posting to the ledger, and sixthly making financial reports which include profit and loss reports, capital change reports, and balance sheet.
Kata Kunci: Waste Bank, Human Resources, Recording, Bookkeeping, Operating Profi
PELATIHAN PEMBUATAN PAKAN TERNAK PADA KELOMPOK TERNAK KITA DI DESA PUCAK TANRALILI
Get PDFThis activity was conducted in Pucak Village, Tompobulu Subdistrict, Maros Regency, with the aim of enhancing farmers' knowledge and skills in producing feed using local materials and reducing dependence on expensive commercial feed. The goat feed produced has the potential to increase the body weight of goats. The process involved several stages, including sample collection in Pucak Village, drying, feed formulation, and analysis. The analysis measured protein content, fat content, fiber content, and ash content. The feed formulation, based on local ingredients, included a combination of Indigofera plants, Azolla plants, and shrimp head waste in specific proportions. For example, F2 formulation contained 10 g of each component and resulted in a fat content of 9.7%, fiber content of 17.8%, protein content of 28.31%, and ash content of 7.64%. The results of this community service activity indicated that the ash content of the feed exceeded the maximum standard quality threshold of 9%.
Keywords: Etawa Goat, Animal Feed, Indigofera, azolla and shrimp head waste