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All Journal Indonesian Journal of Electrical Engineering and Computer Science Classroom Experiences
Zhi-guo Xiao
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Research on Control Strategy of Improved Single-phase Active Power Filter Gang Hu; Chuan Zang; Ya-jie Ma; Zhi-guo Xiao; Wei-li Dai
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Unipolar single-phase active power filter control strategies need to the transformers and adders. Moreover, the circuits to fulfill the control strategy are more complicated. In order to solve above problems, an improved unipolar modulation control strategy has been performed in this paper. The principle of control strategy was analyzed in detail in this paper and related simulation has been finished. The results of simulation show that this improved control strategy can simplify the structure of circuit without affecting the system performance index. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4817
Improving Student Learning Outcomes in the Human Digestive System through the Application of Problem-Based Learning Model Tetii Apriati; Masra Latjompoh; Zhi-Guo Xiao
Classroom Experiences Vol. 3 No. 1 (2025): June
Publisher : Tinta Emas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/care.v3i1.435

Abstract

Learning is a process of interaction between learning resources between students and teachers in a learning environment. The application of the Problem Based Learning method can be a solution for teachers to improve student learning outcomes. This study focuses on the impact of the Problem-Based Learning (PBL) model on student learning outcomes in the topic of the digestive system in Class Mathematics and Natural Sciences (MIA) 2 at State High School (SMAN) 9 Mataram. The research involved 33 students from Class XI MIA 2 at SMAN 9 Mataram, and the learning improvement actions were implemented over three cycles. The study aimed to explore the effectiveness of the PBL method in enhancing student learning achievements, expanding teachers' professional perspectives, and contributing to innovative teaching strategies within the institution. The findings indicate a significant improvement in student learning outcomes, as reflected in the evaluation scores: 35% of students (7 students) achieved scores above the minimum completion criteria in the pre-cycle, 50% (10 students) in Cycle 1, and 85% (17 students) in Cycle 2. This study demonstrates that the application of the PBL model has a positive impact on student learning achievements in Biology, specifically in the digestive system topic.
Co-Authors Chuan Zang Gang Hu Masra Latjompoh Tetii Apriati Wei-li Dai Ya-jie Ma