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All Journal Creative Research in Engineering (CERIE) IJIS Edu : Indonesian Journal of Integrated Science Education
Setiawan, Dona
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Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Validity And Practicality E-Book Based On Android Of Materials Structure And Function Of Animal Tissue 11th Grade Senior High School Setiawan, Dona; Razak, and Abdul
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 2, No 2 (2020): July 2020
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v2i2.6483

Abstract

Education is one of the supporting factors to improve the quality of human resources and is shown by the higher standard of education and along with progress in the 21st century. In this century, we know the term generation millennial, in general, it is found among students who are approaching adulthood and already have many communication devices inform of the smartphone. The use of a smartphone as educational media that is not maximally used.-based electronic teaching materials for android students is not available until now although there are currently very few to use. The purpose of this study is to produce an e-book based on android the structure and function of animal tissue that is valid and practical. This type of research is research and development. The method used in this research development is to use a plomp model. The object of the study consisted of one biology teacher and 35 students of 11th grade science Senior High Public School 3 Padang. Based on the results of this study produced e-book based on android on the material structure and function of animal tissue that showed an average value of 86.56% (very valid) based on validator ratings, practicality assessments by biology teachers showed an average value of 96.25% (very practical) and practicality assessment of field tests by 35 students obtained an average value of 86.66% (very practical). So, it can be concluded that the e-book based on android on the material structure and functions of animal tissue developed is very valid and very practical to use.
Optimization of CPU Heatsink Design, A Simulation-Based Study on Temperature Distribution with Different Fin Number Setiawan, Dona; Priyanto, Agung; Ma'arif, Samsul; Rizkyanto Putra, Okta
Creative Research in Engineering (CERIE) Vol. 6 No. 1 (2026): Creative Research in Engineering (CERIE)
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

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Abstract

In this era of digitalization, a fast processor (CPU) is needed to meet computing needs, but a fast processor can produce high temperatures. With the water cooling technique, the heatsink can help in cooling the processor with the help of a blower/fan. A numerical study was conducted to review the temperature distribution in the heatsink with perforated fin, the effect of the number of holes, and the effect of inlet speed on the CPU temperature, in this study regular fin and perforated fin with 10, 20, and 30 were used. CPU performance relies heavily on an effective thermal management system, where the heatsink plays an important role in dissipating excess heat. This study aims to optimize the design of the CPU heatsink by analyzing the effect of the number of fins on temperature distribution. Simulations were performed using computational software to evaluate multiple heatsink models with varying numbers of fins under the same thermal load conditions. The observed parameters include maximum temperature, heat flux, and temperature distribution on the surface of the heatsink. The simulation results show that an optimal number of fins can significantly improve heat dissipation performance, while an excessive number of fins can actually inhibit airflow and decrease thermal efficiency. This study provides an overview of the thermal behavior of heatsinks and becomes a reference in designing more efficient cooling systems for electronic devices.
Co-Authors Agung Priyanto Ma'arif, Samsul Razak, and Abdul Rizkyanto Putra, Okta