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All Journal Asean Journal of Science and Engineering (AJSE) ASEAN Journal of Science and Engineering Education (AJSEE)
Doni Fajar Ramadhan
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Materials Science & Nanotechnology Other

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Bibliometric and Visualized Analysis of Scientific Publications on Geotechnics Fields Isah Bela Mulyawati; Doni Fajar Ramadhan
ASEAN Journal of Science and Engineering Education Vol 1, No 1 (2021): AJSEE: March 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (767.248 KB) | DOI: 10.17509/ajsee.v1i1.32405

Abstract

The advancement of civil engineering plays a major role in determining the nation's development. Generally, geotechnical engineering has a great influence as there is a building on the ground. The facts show that there are still many geotechnical problems that arise during the development process. One of the supporting factors in dealing with these problems is the development of research in the geotechnical sector in various fields. This research aims to determine the development of research related to Geotechnical Engineering through a bibliometric distribution map using the VOSviewer application. Data collection is gathered from the dimension site. The keyword used in this study is "geotechnical engineering" with the publication year of the 2017-2020 articles. This search was conducted on 23 October 2020 which resulted in 79,185 articles. The results show that the most productive writer in geotechnical research is Ronald Kerry Rowe. Moreover, China is the largest country in the field of geotechnical research so that many other countries have established cooperative relations with China. The journal that publishes the most articles on geotechnical engineering is the International Journal of Rock Mechanics and Mining Science. As for keyword analysis, it produces bibliometric maps including network visualizations, overlay visualizations, and density visualizations. Four keywords often appear, namely "Displacement", "Strength", "Stress", and "Earthquake". Through the bibliometric approach, researchers can identify keywords on each topic or research that has been done before, it is, therefore, valuable in determining the novelty of the research that will be conducted in the future.
Effect of Voltage, Current, and Power on revolutions per minute in the brushless direct 3000-Watt current motor on E-Gokart Iqbal Imaduddin; Doni Fajar Ramadhan; Ridwan Adam Muhamad Noor
ASEAN Journal of Science and Engineering Vol 1, No 3 (2021): AJSE: December 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v1i3.50677

Abstract

The internal combustion engine is a gasoline-powered internal combustion engine that is widely used in the world of transportation. Therefore, everyone is starting to think about developing alternative fuels that are fuel efficient, easy to upgrade, and better in terms of emissions. Vehicles with electric motors are one of the right solutions because they are more environmentally friendly and do not cause pollution when used. In this study, we will discuss the performance of the brushless DC electric motor that is applied to the Go-kart based on the voltage, current, and electrical power that occurs. The method used is measurement using software and experimental simulations. Based on the test results using Votol_V3 Voltage, current, power, and rotation per minute (rpm) have a relationship, the higher the rpm on the mid-drive type electric motor, the greater the current and power required.
Co-Authors Iqbal Imaduddin Isah Bela Mulyawati Muhammad Noor, Ridwan Adam