Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal International Journal Of Science, Technology & Management (IJSTM) Jurnal Media dan Teknologi Pendidikan
Keristiana Sinaga, Enny
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The Effectiveness of Web-Based PACTA for Electrical Motor Installation in Vocational High School Mustaqim, Bima; Siagian, Sahat; Junaidi, Agus; Keristiana Sinaga, Enny; Tanjung, Samsidar; Mursid, R
Jurnal Media dan Teknologi Pendidikan Vol. 5 No. 1 (2025): January
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jmt.v5i1.93750

Abstract

Vocational education in Indonesia faces challenges in providing interactive learning that aligns with the demands of Industry 4.0. In addition, students’ low engagement in understanding technical concepts remains a major obstacle to achieving meaningful learning outcomes. This study aims to evaluate the effectiveness of a web-based learning system using the PACTA model in improving student learning outcomes. The research employed a quasi-experimental method with a pre-test and post-test design across two groups: one group used the PACTA system integrated with Augmented Reality (AR) and an AI-based chatbot, while the other group used a conventional web-based learning platform. Results showed that the PACTA group experienced an increase in average score from 45.22 to 63.91 (t = 3.508; p = 0.002) with an effect size of 18.69%, while the conventional group improved from 38.04 to 44.79 (t = 2.273; p = 0.031) with an effect size of 6.75%. Student perception data showed high satisfaction, with effectiveness at 90.67%, ease of use at 88.2%, and accessibility at 85.0%. The findings conclude that the PACTA-based learning system effectively enhances student engagement and understanding and is recommended for broader application in vocational education.  
Addition of Quick lime to the Stabilization of Humbang Hasundutan's Soil Peat Through The California Bearing Ratio Laboratory Test Suhairiani, Suhairiani; Panjaitan, Nahesson; Keristiana Sinaga, Enny; Zulfa Yuzni, Siti
International Journal of Science, Technology & Management Vol. 3 No. 5 (2022): September 2022
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v3i5.629

Abstract

This research is a research on the development and utilization of peat soil material that is often found in the Humbang Hasundutan district, where peat soil that has been stabilized with lime can later become new soil parameter data that can be used for road subgrade construction improvements. The purpose of this study was to stabilize the Humbang Hasundutan peat soil mixed with lime to meet the standards for road subgrade construction, which will be tested with the California Bearing Ratio (CBR). This study used experimental methods carried out in the laboratory, by conducting tests to obtain new soil parameter data by trying variations of 10%, 20% and 30% initial lime. From the results obtained, the results of the CBR test of peat soil with a lime mixture variation of 20% have met the specifications of Highways for road construction subgrade, which is 5.5%.
Co-Authors Agus Junaidi Mustaqim, Bima Panjaitan, Nahesson R Mursid Sahat Siagian Samsidar Tanjung Suhairiani Suhairiani Zulfa Yuzni, Siti