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All Journal Biology Teaching and Learning International Journal of Mechanical Engineering Technologies and Applications (MECHTA)
Fuad, Ainul
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Automotive Engineering Biochemistry, Genetics & Molecular Biology Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengembangan Media Pembelajaran E-Magazine sebagai Sumber Belajar Biologi Siswa Kelas XII Fuad, Ainul; Karim, Hilda; Palennari, Muhiddin
Biology Teaching and Learning Vol 3, No 1 (2020): Juni
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/btl.v3i1.14298

Abstract

Abstract. This Research and Development (R and D) concerns on learning media development regarding electronic magazine (e-magazine) for Plant Growth and Development subject. The R and D’s model used Analyze, Design, Develop, Implement, Evaluate (ADDIE). Validity test obtained from two expert validators and Practicality test obtained from the using of media by teacher and students. The Develop stage of this study conducted by validating e-magazine for further be implemented on SMAN 10 Gowa, Class of XII4 Natural Science. The number of subjects comprised of 29 students. Data collected from interview, observation and questionnaire. The result of validity test showed the average of media feasibility percentage is  82%. While the subject matter feasibility gained 81%. Both of these result showed very decent category which was meant that the media is feasible to be used. The average of teacher and students respond gained 83% and 81 % respectively toward positive respond. From the point of feasibility which had been evaluated by validity and practical test, this study can be conclude that emagazine is valid and practice learning media to be implemented in learning process. Keywords: e-magazine, validity, practicality, plant growth and development
THE EFFECT OF AIRGAP THICKNESS ON THERMAL PROTECTIVE PERFORMANCE IN HEAT RESISTANT CLOTHING Fuad, Ainul; Yao, Jiafeng; Wahyudi, Slamet; Siswanto, Eko
International Journal of Mechanical Engineering Technologies and Applications Vol. 5 No. 2 (2024)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2024.005.02.4

Abstract

The thermal protective performance is provided by thermal protective clothing worn by people who work in high temperature environments and is highly influenced by air gaps. In this paper, effect of air gap thickness on thermal protective performance as indicated by the time before degree burn were investigated. 3 layers of thermal protective clothing with 3 types of fabrics that have been selected will be tested using an experimental method. The research will be conducted through experimental tests using the fabric level method on a bench-scale test apparatus which is equipped with 4 thermocouples and using gas torch as a heat source. The air gap located between the layers of thermal protective clothing will be varied with different thickness in a vertical orientation. The size of the air gap used varies from 01 mm, 2.51 mm, 51 mm, and 7.51 mm. The results show that the temperature distribution in each layer of clothing from the outer shell to the thermal linear has decreased. In addition, time before degree burn which is an indicator on thermal protective performance shows a positive effect on the addition of air gap thickness where the optimum air gap thickness is shown at 7.5 mm variation. It is hoped that the results of this research can be a source or useful information in mechanical engineering, especially in the fields of thermal comfort and fire safety.
THE EFFECT OF AIRGAP THICKNESS ON THERMAL PROTECTIVE PERFORMANCE IN HEAT RESISTANT CLOTHING Fuad, Ainul; Yao, Jiafeng; Wahyudi, Slamet; Siswanto, Eko
International Journal of Mechanical Engineering Technologies and Applications Vol. 5 No. 2 (2024)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2024.005.02.4

Abstract

The thermal protective performance is provided by thermal protective clothing worn by people who work in high temperature environments and is highly influenced by air gaps. In this paper, effect of air gap thickness on thermal protective performance as indicated by the time before degree burn were investigated. 3 layers of thermal protective clothing with 3 types of fabrics that have been selected will be tested using an experimental method. The research will be conducted through experimental tests using the fabric level method on a bench-scale test apparatus which is equipped with 4 thermocouples and using gas torch as a heat source. The air gap located between the layers of thermal protective clothing will be varied with different thickness in a vertical orientation. The size of the air gap used varies from 01 mm, 2.51 mm, 51 mm, and 7.51 mm. The results show that the temperature distribution in each layer of clothing from the outer shell to the thermal linear has decreased. In addition, time before degree burn which is an indicator on thermal protective performance shows a positive effect on the addition of air gap thickness where the optimum air gap thickness is shown at 7.5 mm variation. It is hoped that the results of this research can be a source or useful information in mechanical engineering, especially in the fields of thermal comfort and fire safety.
Co-Authors Eko Siswanto Hilda Karim Muhiddin Palennari Slamet Wahyudi Yao, Jiafeng