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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Journal Coaching Education Sports
Habibi, Muhammad Iqbal
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Education Engineering

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Analisis Pengaruh Perbedaan Diameter Dalam Terhadap Efisiensi Turbin Ulir Archimedes Habibi, Muhammad Iqbal; Asral, Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Among renewable energy sources, energy from water in small scale water power plants much in demand because the operation is cheap, clean and environmentally friendly. Especially in low head, this type of power plants becomes the best choice for electrifying remote area in developing country and one of the best type is screw turbine. In this study the author will discusses the effect of differences inner diameter of screw turbine on the efficiency of the Archimedes turbine. This experiment using two variations of the ratio of the inner diameter to the outer diameter which is 0.1Do and 0.5Do at turbine length 0.9 m and outer diameter 0.25m and pitch 2Ro (the turbine length, outer diameter and pitch both turbine are equal). This experiment using variety of water flow discharge from 1.35 – 0.09 l/s and variety of angle of inclination of the turbine from 0o – 60o (with the addition of angle by 10o). This test is carried out to determine the efficiency of both turbine. The result of this experiment indicating the most efficiency achieved by turbine witch inner diameter 0.5Do which is 15.71% and followed by inner diameter 0.1Do is 6.85%. The most efficiency of the both turbine obtained on angle of inclination 40o and flow discharge 0.8 l/s. Keywords: Screw turbine, inner diameter, flow discharge, angle of inclination, efficiency
Analysis of the Development of Regulations and Policies in the World of Table Tennis: A Literature Study Approach Nasution, Usman; Nasution, Muhammad Alfa Himawan; Habibi, Muhammad Iqbal; Tahira, Wan Liska Aulina; Ridoh, Muhammad
Journal Coaching Education Sports Vol. 5 No. 1 (2024)
Publisher : Program Studi Pendidikan Kepelatihan Olahraga Fakultas Ilmu Pendidikan Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/47rkgk16

Abstract

The world of sports, including the realm of table tennis, continues to undergo developments in regulations and policies governing various aspects of competition and sport development. This research aims to conduct an in-depth analysis of the evolution of regulations and policies in the world of table tennis through a literature study approach. Relevant sources of literature, including scholarly journals, books, documents from table tennis federations, and popular articles, are identified and systematically analyzed. The results of the analysis indicate significant changes in technical rules of competition and sport development policies, reflecting efforts to maintain the relevance and integrity of this sport in the face of evolving challenges and opportunities. Additionally, global factors such as technological advancements and trends in sports, as well as the political, economic, and social contexts in each country, also influence the formation and implementation of these changes. However, this research acknowledges limitations in the scope of analysis and the need for further research to deepen understanding of regulatory dynamics in table tennis. Thus, this study provides valuable contributions to the literature on regulations and policies in sports and lays a solid foundation for further research and policy development in the future.
The Effectiveness of Project Based Learning (PJBL) in Improving Volleyball Upper Passing: A Case Study at SMP Negeri 3 Satu Atap Riza, Ade Ros; Simbolon, Dicky Bastian; Samudra, Bayu; Lubis, Irwansyah Hafidh; Habibi, Muhammad Iqbal; Ridoh, Muhammad; Nasution, Muhammad Alfa Himawan
Journal Coaching Education Sports Vol. 6 No. 1 (2025)
Publisher : Program Studi Pendidikan Kepelatihan Olahraga Fakultas Ilmu Pendidikan Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/pq12cd04

Abstract

This study aims to analyze or determine whether the provision of project based learning (PJBL) model can improve student learning outcomes. The research method used is Classroom Action Research. The subjects of this study were grade VII students at SMP Negeri 3 Satu Atap Aek Natas with a total of 34 students, consisting of 14 male students and 20 female students. Based on the research conducted, the results of the study in cycle I were 20 students with a converted score of (58.82%) who had achieved the level of learning completion, while 14 students (41.18%) had not achieved the level of learning completion, with an overall average score of 69.83, while in cycle II, data was obtained from 30 students with a converted score of (88.24%) who had achieved completion in learning, while 4 students (11.76%) were still incomplete, with an average learning outcome score of 78.68. Based on the results of the test, there was an increase in the number of students who had achieved learning completion and met the Classical Completion Criteria, namely 85%. Based on the results of the data analysis, it can be concluded that the application of the Project Based Learning (PJBL) Learning model given by researchers to teachers and students has a positive impact and can improve the learning outcomes of volleyball passing at SMP Negeri 3 Satu Atap Aek Natas.
Co-Authors Asral, Asral Lubis, Irwansyah Hafidh Nasution, Muhammad Alfa Himawan Nasution, Usman Ridoh, Muhammad Riza, Ade Ros Samudra, Bayu Simbolon, Dicky Bastian Tahira, Wan Liska Aulina