Open Journal System (OJS) Universitas Bengkulu
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SIMULASI DUDUKAN LOADING-UNLOADING PANSER MORTIR MENGGUNAKAN SOFTWARE SOLIDWORKS
Get PDFThe loading-unloading stand is part of the Panzer mortar loading-unloading tool which functions to hold the mortar and move the mortar from a vertical position to a horizontal position. In this test, the aim was to design a panzer mortar loading-unloading stand using Solidworks software, to find out how to simulate a loading-unloading stand and to determine the strength of the load on the panzer mortar loading-unloading stand. The simulation process on the loading-unloading stand was carried out to determine the von Mises stress, displacement and strain. von Mises stress and strain testing obtained a maximum result of 3,516 MPa and 5,744% at the end of the shaft, displacement testing obtained a maximum result of 7,726 mm at the center of the shaft. The minimum factor of safety for loading- unloading stands is around 25.5 This occurs due to changes in the shape of the object being applied.The loading-unloading stand is part of the Panzer mortar loading-unloading tool which functions to hold the mortar and move the mortar from a vertical position to a horizontal position. In this test, the aim was to design a panzer mortar loading-unloading stand using Solidworks software, to find out how to simulate a loading-unloading stand and to determine the strength of the load on the panzer mortar loading-unloading stand. The simulation process on the loading-unloading stand was carried out to determine the von Mises stress, displacement and strain. von Mises stress and strain testing obtained a maximum result of 3,516 MPa and 5,744 at the end of the shaft, displacement testing obtained a maximum result of 7,726 mm at the center of the shaft. The minimum factor of safety for loading- unloading stands is around 25.4965 This occurs due to changes in the shape of the object being applied. Keywords: loading-unloading panzer mortars, von mise
PREVENTIVE MAINTENANCE CLOSED COOLING WATER PUMP TURBINE PADA PLTU PRIAMANAYA ENERGI KEBAN AGUNG LAHAT 2 X 135 MW
No full textPreventive maintenance is a maintenance and care activity carried out to prevent unexpected damage and to find conditions or circumstances that can cause production facilities to experience damage during the production process. The purpose of the research conducted by the author is to determine the implementation of preventive maintenance on the closed cooling water pump turbine at the Priamanaya Energi Keban Agung Lahat 2 x 135 MW PLTU, this research was conducted using the observation method or going directly to the field. This research resulted in that by carrying out preventive maintenance regularly and effectively on the closed cooling water pump at this PLTU, the company can ensure that they not only maintain smooth and efficient operations, but also reduce the risk of damage that can disrupt production.Preventive Maintenance adalah kegiatan pemeliharaan dan perawatan yang di lakukan untuk mencegah timbulnya kerusakan-kerusakan yang tidak terduga dan menemukan kondisi atau keadaan yang dapat menyebabkan fasilitas produksi mengalami kerusakan pada waktu proses produksi. Tujuan penelitian yang dilakukan penulis adalah untuk mengetahui pelaksanaan Preventif Maintenance pada Closed Cooling Water Pump Turbine yang ada di PLTU Priamanaya Energi Keban Agung Lahat 2 x 135 MW, penelitian ini dilakukan dengan menggunakan metode observasi atau terjun langsung ke lapangan. Penelitian ini menghasilkan bahwa Dengan melakukan pemeliharaan Preventif secara teratur dan efektif pada Closed Cooling Water Pump yang ada di PLTU ini, perusahaan dapat memastikan bahwa mereka tidak hanya menjaga operasi yang lancar dan efisien, tetapi juga mengurangi risiko terjadinya kerusakan yang dapat mengganggu produksi
Karakteristik Habitat Peneluran dan Proses Penetasan Semi Alami Telur Penyu (Chelonia mydas) di Kawasan Konservasi Penyu Pantai Pangumbahan, Sukabumi
Get PDFPenyu hijau (Chelonia mydas) adalah salah satu spesies penyu yang termasuk dalam keluarga Cheloniidae. Kesesuaian habitat peneluran penyu hijau akan mendukung keamanan dan kelangsungan hidup penyu. Pantai Pangumbahan, Sukabumi merupakan salah satu habitat peneluran penyu hijau yang perlu dijaga kelestariannya. Penelitian ini bertujuan untuk mengetahui karakteristik habitat dan penetasan semi alami telur penyu hijau di Pantai Pangumbahan, Sukabumi. Metode yang digunakan adalah purposive sampling dengan teknik observasi dan survei lapangan. Hasil menunjukkan Pantai Pangumbahan merupakan habitat yang sesuai bagi penyu hijau, dengan lebar pantai berkisar antara 26-61 m dan kemiringan rata-rata 6,59%, suhu rata-rata 29℃, kelembaban rata-rata 47,17%. Pasir di pantai ini berukuran 0,150 mm, tergolong pasir halus, dengan pH rata-rata 7,0 yang termasuk kategori netral. Selain itu, vegetasi yang tumbuh di sekitar sarang peneluran meliputi pandan laut (Pandanus odorifer), rumput lari-lari (Spinifex littoreus), dan katang-katang (Ipomoea pes-caprae), yang berperan dalam menjaga kestabilan ekosistem pantai. Terdapat juga proses penetasan semi alami mencakup pengamatan dan relokasi, inkubasi telur, pemeliharaan sarang, pembongkaran sarang, rekapitulasi data dan pelepasan tukik. Temuan ini memberikan kontribusi penting bagi pengelolaan konservasi penyu hijau, khususnya dalam optimalisasi teknik penetasan semi alami sebagai strategi pelestarian yang berkelanjutan
PEMANFAATAN HASIL HUTAN BUKAN KAYU DI PT RESTORASI EKOSISTEM INDONESIA, JAMBI
Get PDFPemanfaatan hasil hutan bukan kayu (HHBK) berperan penting dalam mendukung restorasi ekosistem berkelanjutan dan meningkatkan kesejahteraan masyarakat sekitar hutan. Penelitian ini bertujuan mengidentifikasi jenis, potensi, dan pola pemanfaatan HHBK di PT Restorasi Ekosistem Indonesia (REKI), Jambi, dengan fokus pada empat komoditas utama yaitu jelutung (Dyera costulata), damar (Agathis dammara), jernang (Daemonorops draco), dan madu hutan (Apis dorsata). Metode yang digunakan adalah deskriptif kualitatif melalui observasi lapangan, wawancara mendalam, dan dokumentasi. Hasil penelitian menunjukkan bahwa pemanfaatan HHBK memberikan manfaat ekonomi, ekologi, dan sosial yang signifikan bagi masyarakat sekitar. Kegiatan penyadapan getah jelutung dan damar, budidaya jernang, serta panen madu hutan secara lestari berkontribusi terhadap peningkatan pendapatan tanpa merusak ekosistem hutan. Pengelolaan HHBK di PT REKI menjadi contoh penerapan restorasi ekosistem berbasis masyarakat yang mengintegrasikan prinsip ekonomi hijau dan kesejahteraan lokal
POTENSI SEDIAAN PATCH TRANSDERMAL EKSTRAK DAUN KAYU MANIS (Cinnamomum Burmannii) SEBAGAI OBAT LUKA
Get PDFLuka merupakan kerusakan jaringan yang membutuhkan penanganan cepat untuk mencegah infeksi dan mempercepat proses penyembuhan. Daun kayu manis (Cinnamomum burmannii) diketahui mengandung senyawa bioaktif seperti sinamaldehid, flavonoid, tanin, terpenoid, dan saponin yang berperan sebagai antibakteri, antiinflamasi, serta stimulan angiogenesis. Penelitian ini bertujuan mengembangkan sediaan patch transdermal ekstrak daun kayu manis sebagai terapi luka secara in vivo. Ekstrak diperoleh melalui metode maserasi etanol 70%, dilanjutkan karakterisasi, skrining fitokimia, formulasi patch, uji mutu fisik, serta uji efektivitas pada tikus putih (Rattus norvegicus) dengan luka eksisi. Hasil penelitian menunjukkan bahwa patch transdermal formula 3 dengan konsentrasi ekstrak 7,5% mampu mempercepat penyembuhan luka dengan persentase kesembuhan 84,07%, mendekati kontrol positif (89,26%) dan lebih tinggi dibandingkan kontrol negatif (63,59%). Patch transdermal ekstrak daun kayu manis berpotensi dikembangkan sebagai alternatif terapi herbal untuk mempercepat proses penyembuhan luka
The Effect of Media Mix and Match Puzzle Multiple Number Representation on the Ability to Recognize Number Symbols in Early Childhood
Get PDFRecognizing number symbols in early childhood is challenging because their abstract nature does not align with the child's concrete thinking stage. Conventional methods, such as flashcards, have proven less effective because they rely solely on memorization. This study aims to test the influence of Media Puzzle Mix and Match Multiple Number Representation on children's ability to recognize number symbols in the 5-6-year age range. This research method uses a quasi-experiment with a pretest-posttest control group design involving 16 children at Al-Ikhsan Kindergarten. The experimental group consisted of 8 children using a puzzle media with six number representations, while the control group consisted of 8 children using conventional flashcards. Results: Data analysis showed a significant increase (p < 0.05) in the experimental group, with an average increase of 22.25% compared with the control group, which was only 5.75%. The conclusion of the Media Puzzle Mix-and-Match Multiple Number Representation is efficacious in improving the ability to recognize number symbols through a multisensory approach aligned with constructivist and dual-coding theories
PEMANFAATAN LIMBAH DAPUR MENJADI PUPUK ORGANIK CAIR (POC) UNTUK DILINGKUNGAN MASYARAKAT RW 03 KELURAHAN JEMBATAN KECIL
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Organic fertilizer is a type of fertilizer derived from natural materials such as plant and animal residues that have undergone specific processing. One form of this is Liquid Organic Fertilizer (LOF), which is typically made from vegetable waste and is easy to produce. The production process of LOF is carried out naturally through fermentation, during which plant residues and animal waste decompose. The main goal of producing LOF is to convert kitchen or household waste into a useful product. This process also aims to identify the most effective method for producing liquid fertilizer by utilizing household organic waste as the main material, enhanced with the addition of EM4 (Effective Microorganisms 4).
 
Pengaruh Latihan Push Up Terhadap Jauhnya Lemparan Kedalam Pada Ssb Cinta Marga Ogan Ilir
Get PDFPenelitian ini adalah bertujuan untuk mengetahui pengaruh latihan push up terhadap jauhnya lemparan ke dalam pada pemain SSB Cinta Marga Ogan Ilir. Metode yang digunakan pada penelitian ini yaitu eksperimen. Rancangan penelitian yang digunakan One Group Pretest-Posttest Design. Pengambilan sampel ini menggunakan teknik sampel total population sampling dengan jumlah sampel 30 orang pemain. Instrumen penelitian ini yaitu tes melakukan teknik lemparan ke dalam. Dari hasil pengelolahan dan analisis data dengan menggunakan uji normalitas data dan uji hipotesis dengan rumus uji T, bahwa latihan push up berpengaruh terhadap peningkatan jauhnya hasil lemparan ke dalam pada pemain sepak bola. Hal ini dapat dilihat dari hasil analisis data melalui perhitungan SPSS 26 uji t dengan kriteria t hitung lebih besar dari ttabel (13,730 ˃ 1,70) dengan taraf kepercayaan 0,95 (α = 0,05) dan jumlah sampel (N = 30). Latihan push up memberikan pengaruh terhadap peningkatan hasil lemparan ke dalam pada pemain SSB Cinta Marga Ogan Ilir.
Abstract
This study aims to determine the effect of push-up exercises on the long throw-in results of SSB Cinta Marga players Ogan Ilir . The method used in this study is a experimental, which means that only the sample is given a treatment. The research design used was the One Group Pretest-Posttest Design. This sampling uses a total population sampling technique with a total sample of 30 players. The instrument of this research is the throw-in technique. From the results of processing and analyzing data using the data normality test and testing the hypothesis with the T test formula, that the push up exercise has an effect on increasing the distance in the results of the throw-in in soccer players. This can be seen from the results of data analysis through the calculation of the t test formula with the criteria t count is greater than t table (13.730 ˃ 1.70) with a confidence level of 0.95 (α = 0.05) and the number of samples (N = 30). The push-up exercise had an effect on increasing the results of the throw-in for SSB Cinta Marga Ogan Ilir player
The Role of Educational Supervision in Enhancing School Quality: A Theoretical Perspective
Get PDFEducational supervision has long been recognized as a crucial mechanism for improving school quality, yet its conceptual foundations and operational implications remain varied across educational systems. This article provides a theoretical exploration of how educational supervision contributes to the enhancement of school quality, focusing on supervisory functions, professional development, instructional improvement, and organizational effectiveness. Drawing from classical and contemporary literature, the paper synthesizes multiple perspectives to clarify the conceptual boundaries of supervision and its relationship to teaching-learning outcomes. The review highlights that effective supervision not only evaluates teacher performance but also promotes continuous professional learning, collaborative school culture, and data-driven decision-making. Moreover, the findings emphasize that the role of supervision has shifted from inspection-oriented practices to more developmental and supportive approaches aligned with modern educational quality standards. This theoretical analysis further identifies persistent gaps in the literature, including inconsistent definitions, limited models for contextualized implementation, and insufficient attention to supervisor competencies. The paper concludes by proposing an integrative framework that positions educational supervision as a multidimensional catalyst for school improvement. The framework underscores the importance of leadership capacity, supportive communication, and reflective practice. Overall, the study contributes a holistic understanding of supervision’s strategic role in elevating school quality and provides insights for policymakers, school leaders, and researchers seeking to strengthen supervisory practices.
Keywords: Educational Quality, Educational Supervision, Instructional Improvement, School Leadership, Theoretical Perspective
Perceived Benefits and Challenges of Using Note-Taking in Intensive Listening among University Students
Get PDFOne of the best strategies to support listening comprehension is note-taking strategy. In this study, students' perceptions of the benefits and challenges of using note-taking strategies were explored especially in Intensive Listening class. A mixed-methods approach was used involving 28 first-semester students in the English Language Education Department at the University of Bengkulu. Quantitative data were collected through a Likert-scale questionnaire adapted from Dunkel and Davy (1989) which consist of 19 questions in 3 subparts, while qualitative data were obtained through semi-structured interviews. Findings of the study indicate that students view note-taking positively, as it helps them capture main ideas, organize information, reduce cognitive load, and increase focus during listening activities. Students also believe that note-taking strategy improves their performance on listening tasks and exams. However, challenges such as limited English proficiency, difficulty multitasking while listening, and a lack of effective note-taking techniques were identified. This study demonstrates the need for explicit instruction in note-taking strategies to maximize their effectiveness in Intensive Listening classes