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All Journal Jurnal Nosel Edunesia : jurnal Ilmiah Pendidikan
Surya Catur Sudrajat, Surya Catur
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Education Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Other

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PENGARUH PENGGUNAAN TURBO ELEKTRIK DAN SARINGAN UDARA MODIFIKASITERHADAP KADAR EMISI GAS BUANG CO DAN HC SEPEDA MOTORHONDA SUPRA X 125 TAHUN 2009 Sudrajat, Surya Catur
Jurnal Nosel Vol 2, No 4 (2014): April
Publisher : Jurnal Nosel

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (111.926 KB)

Abstract

The purpose of this research are to investigate: (1)The effect of using fixed and swirl electric turbo to exhaust gas emissions level of CO and HC on Honda Supra X 125 2009 motorcycle. (2) The effect of using modified of air filter to exhaust gas emissions level of CO and HC on Honda Supra X 125 2009 motorcycle. (3) The effect of using electric turbo and modified of air filter to exhaust gas emissions level of CO and HC on Honda Supra X 125 2009 motorcycle. (4) The lowest exhaust gas emissions level of CO and HC on Honda Supra X 125 2009 motorcycle. The method which used in this research was experimental method. The population  in this research were Honda Supra X 125 2009 motorcycle and sample was Honda Supra X 125 2009 motorcycle with JB91E1802814 engine number. Techniques of data analysis used descriptive data analysis. Based on this researchcan be concluded: (1) In standard condition, the emissions gas level of CO was 2.530% and the emissions gas level of HC was 1169 ppm. In the using of fixed electric turbo, the emissions gas level of CO was 2.199% and the emissions gas level of HC was 1093.33 ppm. So the reduced of the emissions gas level of CO was 0.331% and the emissions gas level of HC was 75.67 ppm. While in the using of swirl electric turbo, the emissions gas level of CO was 1.870% and the emissions gas level of HC was 823.33 ppm. So the reduced of the emissions gas level of CO was 0.66% and the emissions gas level of HC was 245.67 ppm. (2) In the using of modified air filter, the emissions gas level of CO was 1.472% and the emissions gas level of HC was 602 ppm. So the reduced of the emissions gas level of CO was 1.058% and the emissions gas level of HC was 602 ppm. (3) In the using of fixed electric turbo and modified of air filter, the emissions gas level of CO was 1.403% and the emissions gas level of HC was 403.33 ppm. So the reduced of the emissions gas level of CO was 1.127% and the emissions gas level of HC was 765.67 ppm. While in the using of swirl electric turbo and modified of air filter, the emissions gas level of CO was 0.946% and the emissions gas level of HC was 374.33 ppm. So the reduced of the emissions gas level of CO was 1.584% and the emissions gas level of HC was 794.67 ppm. (4) The lowest exhaust gas emissions level of CO and HC on Honda Supra X 125 2009 motorcycle at the using of swirl electric turbo and modified of air filter.
The Effects of Responsibility and Empathy on Customer Satisfaction in Teaching Factory Learning Sudrajat, Surya Catur; Buditjahjanto, I Gusti Putu Asto; Warju, Warju
Edunesia : Jurnal Ilmiah Pendidikan Vol. 6 No. 1 (2025)
Publisher : research, training and philanthropy institution Natural Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51276/edu.v6i1.1142

Abstract

Vocational education encourages students to achieve competency in order to make students more prepared when joining the world. In order to achieve this goal, vocational education applies the model of a teaching factory. In factory learning, students are taught to provide direct services and products suitable for sale to general consumers or the public. Fundamental values ​​such as responsibility, empathy, and cooperation in service to society are the keys to this learning. The research aims to determine the simultaneous influence of responsibility and empathy on customer satisfaction in teaching factory learning at UPJ Vehicle Engineering Vocational High School 1 Bendo. The research used a sample of 67 class XII students at Vocational High School 1 Bendo using a Likert scale questionnaire with instrument validity test results using V-Aiken and reliability testing using Cronbach alpha. The research uses multiple linear regression analysis for the independent variables (responsibility and empathy) and the dependent (customer satisfaction) variables. The results of the Anova significance research were 0.000, and the calculated F value was 358.402. Then, the R2 value was 0.964. This shows that responsibility and empathy significantly influence customer satisfaction, with a percentage of 96.4%. Hopefully, this research can become the basis for further policy-making.
Co-Authors I Gusti Putu Asto Buditjahjanto WARJU