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28,451 Article Results

Softplus function trained artificial neural network based maximum power point tracking

10.11591/ijpeds.v16.i2.pp1174-1183
Liong Han Wen , Mohd Rezal Mohamed
To optimize the electrical output of a photovoltaic system, maximum power point tracking (MPPT) methods are commonly employed. These techniques work by operating the photovoltaic system at its maximum power point (MPP), which varies based on environmental factors like solar irradiance and ambient temperature, thereby ensuring optimal power transfer between the photovoltaic system and the load. In this paper, an artificial neural network (ANN) is selected as an MPPT technique. The main contribution of the work is to introduce a softplus function trained artificial neural network-based maximum point tracking (SP-ANN MPPT). The proposed method is then compared with a sigmoid function trained artificial neural network-based maximum point tracking (SM-ANN MPPT). The simulation and experimental results show that SP-ANN MPPT is able to track high power than SM-ANN MPPT in different conditions.
Volume: 16
Issue: 2
Page: 1174-1183
Publish at: 2025-06-01

Effect of integrating student-developed videos into a virtual environment

10.11591/ijere.v14i3.32637
Khoo Yin Yin , Mohamad Rohieszan Ramdan
Many users experience loneliness’ and feel disconnected from teachers and friends during online learning. Lack of engagement between teacher and students can hinder learning and lead to unpleasant feelings such as anxiety and a lack of motivation. Hence, some lecturers require students to develop videos in pairs and share them with peers. The purpose of this study was to measure the effect of integrating of student-developed videos into a virtual environment. The quasi-experimental method with was conducted to investigate students’ perceptions of interest, motivation, engagement and performance. A total of 333 students was divided into experimental and control group. Results showed a positive impact of this approach, which can draw out students’ creativity and their understanding of the content knowledge to integrate these with information and communication technology skills. Examination of the qualitative results suggest that the students need to be closely monitored while making the video to prevent free-riders. This study also recommends that the design of the video must be integrated into the course in order to achieve the learning outcome. This study contributed to literature on the effect of student-developed videos.
Volume: 14
Issue: 3
Page: 2369-2380
Publish at: 2025-06-01

A review of research on environmental awareness based on bibliometric analysis: initiation, progress and future

10.11591/ijere.v14i3.30037
Ömer Cem Karacaoğlu , Aysun Aynur Yılmaz , Abdulkadir Özkaya
“Environmental awareness” (EA) is an important factor in helping to eliminate environmental problems and mobilizing individuals and communities. This study addresses the vast literature on EA by presenting a bibliometric analysis of 564 EA studies in the social science citation index (SSCI) in the Web of Science (WoS) database. The study started with a query of EA-related publications in the WoS database and included an exploration stage covering topics such as distribution by years, most cited journals, publishing countries and active universities. The second stage involved the visualization of EA research on keywords through analysis and visual maps using Biblioshiny and VOSviewer software. The third stage involves naming the constructs and identifying their main characteristics. The analysis of keywords and the cluster names made in the light of these words provide a broad perspective of EA research. The final stage, validation, aims to determine the validity of the constructs based on the relationships between concepts. The overall results of the study show that EA research is influential across the world and is shaped around various themes. The identified themes guide future research and policymaking by emphasizing environmental education, sustainability, early childhood education, active learning, and interdisciplinary collaboration.
Volume: 14
Issue: 3
Page: 1770-1789
Publish at: 2025-06-01

Educational environment of shaping conflict resolution skills at the tertiary level

10.11591/ijere.v14i3.33120
Liudmyla Holubnycha , Yuliia Sytnykova , Tetiana Shchokina , Natalia Soroka , Dina Demchenko , Tetiana Malieieva
As the modern world is characterized by a large number of various conflicts, it is vital for people to resolve them peacefully. So, it is relevant to develop conflict resolution skills while educating students. The research aimed to examine how certain educational environments designed to cultivate conflict resolution skills in students influence the development of these skills level. A total of 139 students of a Ukrainian university, consisted of two experimental group (E1=48; E2=46) and a control group (C=45) participated in the experiment and produced significant findings that are crucial to the field of conflict resolution skills development. The χ² test helped analyses the experiment data and make a conclusion about its statistical significance. The p-value (less than 0.05) indicated that the difference between the experimental and control groups was statistically significant at the 0.05 level of significance. Results revealed that the students of the experimental groups had substantially higher achievements than the control group students. Thus, educational environments designed to cultivate conflict resolution skills effectively influence these skills level development if academic staff purposefully promotes it. It is recommended to utilize the proposed educational environments in complex within formal educational settings, during extracurricular activities and internships.
Volume: 14
Issue: 3
Page: 2224-2235
Publish at: 2025-06-01

Systematic review of teaching methods in language education: trends and innovation

10.11591/ijere.v14i3.31774
Nur Atikah Mohd Noor , Zamri Mahamod , Nurfaradilla Mohamad Nasri
This systematic literature review (SLR) examines the developing pedagogical methods in language instruction, emphasizing modern practices, technological advancements, and cultural diversity. The research seeks to fill significant gaps in the literature by examining effective pedagogical strategies that improve language acquisition results. In accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) methodology, a systematic search of the Scopus and Web of Science (WoS) databases was performed, focusing on publications published from 2022 to 2024. 30 primary studies were examined through topic synthesis and integrative analysis. The findings are categorized into three themes: i) contextualized and adaptive teaching methods in language education: balancing traditional approach and innovation; ii) impact of innovative teaching on language learning: technology and student engagement; and iii) cultural diversity’s impact on language education and engagement. The results underscore the imperative of modifying teaching strategies according to different situations and incorporating technology to enhance engagement and results. Furthermore, culturally sensitive techniques were demonstrated to improve inclusivity in multilingual classrooms. These insights are pertinent to academic and professional settings, indicating widespread significance for enhancing communication and cross-cultural skills. Future research should investigate the long-term effects of these initiatives and ensure equal access to educational resources and teacher training.
Volume: 14
Issue: 3
Page: 2031-2041
Publish at: 2025-06-01

The influence of mobile communication technologies in long-term e-learning

10.11591/ijere.v14i3.29863
Elena Susimenko , Alena Gura , Alsu Rakhmanova , Olga Butylchenko
Communicative abilities constitute a crucial element of successful learning and interaction. The psychological impact of the prolonged lack of face-to-face contact with the peer audience and teachers typically remains an unresolved problem, despite the availability of appropriate online learning methodologies and technical tools. This study aims to ascertain a quantitative assessment of social maladjustment and a reduction in the level of communicative competence resulting from prolonged distance learning and the use of mobile devices in communication. The research employs a quantitative approach and is based on a survey of students who participated in eight socio-psychological training sessions (A-trainings). The training sessions are oriented towards refining the personal qualities of individuals and facilitating their adaptation to the fluctuating conditions of learning environments. The analysis of pre-and post-training results was compared with the results of the control group. The research findings indicate a positive impact of socio-psychological training on the enhancement of communicative skills and emotional well-being of students.
Volume: 14
Issue: 3
Page: 1904-1915
Publish at: 2025-06-01

Project-based environmental module for indigenous students in Malaysia

10.11591/ijere.v14i3.32047
Low Suan Ee , Nor Hasniza Ibrahim , Johari Surif , Abdul Halim Abdullah , Corrienna Abdul Talib
The removal of forests has become a major challenge for indigenous students in Malaysia called Orang asli. The younger generations of Orang asli need to equip themselves with relevant knowledge to deal with changes within their living environment. However, they faced difficulties during learning such as irrelevant curriculum, lack of materials and inappropriate approaches. A project-based environmental module is constructed which employs the analyze, design, develop, implement and evaluate (ADDIE) instructional model with three projects: the construction of habitat, soil acidity and infiltration of pesticides. This study aimed to develop this module and assess its suitability to inculcate scientific attitudes and noble values among the Orang asli primary six students. The data were collected through validation questionnaires that were given to three validators. The data obtained are further analyzed to identify their improvement towards the module. The validation results show that the module is very feasible (85.83%) to be used. Many opine that this module creates a learning experience for them through scientific reasoning, inquiring, cooperating, and decision-making so that they find the relevancy of knowledge in the Orang asli context. The enhancement of this module provides useful educational guidance to learn environmental knowledge from a scientific perspective.
Volume: 14
Issue: 3
Page: 2042-2050
Publish at: 2025-06-01

Optimal gating angles for a three-phase 60 Hz voltage source multi-level inverter based on intelligent algorithms

10.11591/ijpeds.v16.i2.pp961-973
Taha Ahmed Hussein , Dahaman Ishak , Jawad Hasan Alkhateeb , Mohamed Salem
The three-phase multi-level inverter is considered one of the main power sources in industrial applications as well as in renewable energy applications. Therefore, researchers are interested in improving the efficiency of the inverter by reducing the total harmonic distortion (THD) value to its lowest limits. Also, one of the factors for improving the efficiency of the inverter is reducing the number of switches used, as it contributes to reducing the resulting losses. This research resorts to using many optimal algorithms to find the optimal values for the inverter gating angles that ensure reducing the THD value, as well as using a suitable topology with a least number of switches. The research used five algorithms known for their accuracy and efficiency, genetic algorithm (GA), gray wolf optimization (GWO), particle swarm optimization (PSO), slime mould algorithm (SMA), and whale optimization algorithm (WOA) separately. Then, extracting the distinctive characteristics of these algorithms in a hybrid curve and using it in driving the three-phase multi-level inverter (MLI) with 31 levels. The research displays the voltages and currents of the inverter as well as the frequency analysis for three-phase inductive load resulting from simulating the inverter using MATLAB software.
Volume: 16
Issue: 2
Page: 961-973
Publish at: 2025-06-01

General trends on the impacts of evidence-based university accreditation on quality assurance enhancement

10.11591/ijere.v14i3.31271
Nurali Kairanbayev , David Arulraj David
Traditional accreditation process although has relevant impacts on quality assurance in higher education. Research and practices have shown the value of emerging evidence-based university accreditation. The study therefore aims to understand the impacts of evidence-based university accreditation on quality assurance enhancement. The research relied on literature review and document analysis as suitable methods. The study’s results demonstrated that the final decision for academic accreditation should be based on evidence that all stakeholders took part in quality assurance, namely staff and students. This study also explores the university accreditation practices in the United Kingdom (UK), United Arab Emirates (UAE), and Kazakhstan. The analysis presented here allows us to compare and discuss the practices of three different quality assurance practices. The three cases Quality Assurance Agency for higher education (QAA), Commission for Academic Accreditation (CAA), and Independent Kazakh Agency for Quality Assurance in Education (IQAA) indicate relevant use of evidence-based approaches to university accreditations that support quality assurance enhancement, given the explicit approaches grounded in data and evidence. The future of evidence-based approach will be furthered with the support of technology and sophisticated tools that will support explicit policies and practices. This research is expected to benefit researchers, policy makers and practitioners in quality assurance.
Volume: 14
Issue: 3
Page: 1939-1948
Publish at: 2025-06-01

Digital technologies and leadership practices in Greek elementary schools

10.11591/ijere.v14i3.32748
Antonios Kokkonos , Antonios Travlos , Panagiota Antonopoulou , Maria Pavlis Korres , Emmanouil Choustoulakis
The rapid advancement and widespread adoption of digital technologies have significant implications for leadership theory and practice, which remain largely unexplored in the current literature. This study investigates how demographic characteristics influence the perceptions of elementary school principals and educational staff regarding the digital age and leadership practices. Employing a quantitative research approach, data were collected through a web survey based on the questionnaire for digital technologies and leadership practices (QDTLP) from 505 participants in 215 elementary schools of Peloponnese Region. Multivariate analysis of variance (MANOVA) and univariate analysis of variance (ANOVA) were employed to examine differences in perceptions based on gender, age, education level, subject specialization, years of teaching experience, years of work at the current school, role in the school, and the Directorate of Primary Education (DPE) the school belongs to. The findings indicate that age, education level, years of teaching experience, and role in the school significantly affect perceptions, while gender, subject specialization, and DPE the school belongs to, do not demonstrate a significant influence. The study provides valuable insights into how demographic characteristics shape perceptions about digital technologies and leadership within the elementary school context, contributing to the adaptation of leadership practice in the digital age.
Volume: 14
Issue: 3
Page: 1815-1823
Publish at: 2025-06-01

Examining the ‘hawk-dove effects’ in portfolio assessment using the multi-facet Rasch model

10.11591/ijere.v14i3.30351
Andrews Cobbinah , Jephtar Adu-Mensah
Concerns among students have increased due to the use of test scores in decision-making, leading them to question whether their results accurately reflect their abilities, especially when they perceive subjectivity in rater scoring. This study explores the effects of rater bias on portfolio assessment scores among student teachers in the colleges of education in Ghana. A sample of 207 student portfolios, scored by tutors, was analyzed using a three-facet design model and the FACET software. The findings revealed that tutors exhibited varying rating behaviors, including severity, leniency, and halo effects. These differing rating patterns were found to impact the students’ portfolio scores, suggesting that the subjectivity of raters plays a crucial role in the assessment process.
Volume: 14
Issue: 3
Page: 1590-1596
Publish at: 2025-06-01

Relationship quality and its effects on college student’s psychological well-being

10.11591/ijphs.v14i2.24698
Afinnisa Rasyida , Maria Angelisa Siregar , Alifiah Nur'izza Rachmah , Raden Roro Fitria Rachmawati , Ivena Nathania Victor , Kezia Jeni Hindrawan
The field of psychological well-being is extensively studied globally, encompassing positive relationships as a notable facet. Presently, there is a discourse emphasizing the need for research on relationships to encompass both positive and negative aspects, along with their effects on an individual’s overall well-being. The study aimed to identify the impacts of relationship qualities of three sources (parental, friendship, and romantic relationships) on college students’ psychological well-being. The 251 college students in Surabaya (Indonesia) and 139 college students in Hangzhou (China), selected using purposive sampling technique, were involved in this research. All participants have at least three social networks/sources of relationship, i.e., parents, best friends, and romantic partners. The network of relationships inventory -relationship quality version (NRI-RQV) was given to identify the qualities of relationship participants have from the three sources. Participants’ psychological well-being was observed using the PERMA-Profiler. Data was analyzed using Statistical Package for the Social Sciences (SPSS). In both countries, students highlight that the quality of the relationship between parents and college students has the most substantial influence on their psychological well-being, with parental approval being one of the key components. This finding provides valuable insights for developing an effective support system for college students.
Volume: 14
Issue: 2
Page: 978-988
Publish at: 2025-06-01

Adaptive control scheme of variable speed wind turbines for frequency support

10.11591/ijpeds.v16.i2.pp1356-1367
Leonardo Javier Ontiveros , Antonio Ernesto Sarasua , Cindy Madrid Chirinos
Wind generation has experienced significant growth in power systems, due to the high availability of the primary resource and the maturity of its technology, which allows a fast control of active and reactive power. However, its main disadvantage is the lack of controllability over the primary resource. This leads to unwanted frequency oscillations that affect the power system security as wind penetration increases. This is due to the inertia of wind turbines is decoupled from the inertia of synchronous machines connected to the power system. Based on the aforementioned information, this paper analyses the state of the art of control strategies that allow wind turbines to participate in the frequency control of the power system. The main contribution of this work is the novel control strategy proposed, which implements a virtual synchronous machine controlled by an adaptive control system to enhance the transient response of the wind turbine. This scheme allows efficient management of the turbine's rotating reserve without the need to reduce its output power or use expensive energy storage systems. This solution is suitable for power systems with high wind penetration (above 20%). The validity of this proposal is demonstrated through dynamic simulations in a test system.
Volume: 16
Issue: 2
Page: 1356-1367
Publish at: 2025-06-01

Adaptation of parental expectation of children’s future scale in Indonesian version

10.11591/ijphs.v14i2.25209
Novia Solichah , Nur Ainy Fardana , Samian Samian
Parental expectations play a crucial role in shaping a child's developmental trajectory, serving as a primary motivator for the attainment of future aspirations. Researchers conducted a literature review on parental expectations toward their children, utilizing ten instruments developed in journal literature from 2008 to 2020. Of particular interest was the Parent Questionnaire containing the Chinese Parental Expectation on Child’s Future Scale (CPECF), it constitutes a fundamental framework for comprehending parental anticipations in the realm of child development. This study aimed to adapt and validate the PECF scale, employing established validation procedures endorsed by the International Test Commission. Initially, a cohort of 987 parents participated; however, after data cleansing procedures aimed at eliminating incomplete responses and ensuring accuracy, the analysis focused on 593 respondents. The participants’ ages ranged from 21 to 78 years, with a mean age of 35.93 years. Confirmatory Factor Analysis revealed 17 valid and reliable items. The model demonstrated a good fit. These findings suggest that the PECF scale effectively measures parental expectations, aligning with the original scale. It is anticipated that this scale will serve as a valuable tool for research concerning parental expectations in Indonesia, aiding in understanding and addressing the dynamics.
Volume: 14
Issue: 2
Page: 1040-1051
Publish at: 2025-06-01

A systematic review on innovations in computer aided design in engineering education

10.11591/ijere.v14i3.30250
Margarita F. Murillo Manrique , Jorge Augusto Sanchez Ayte
curricula up-to-date with advanced computer-aided design (CAD) technologies to understand their practical application in various industrial and research contexts. Given this need, a systematic review was proposed following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) method to evaluate the most recent innovations in CAD systems and their effective application in engineering education. The results reveal that emerging technologies such as real-time virtual collaboration, 3D design, and virtual reality are being incorporated into educational environments, significantly enhancing students’ technical and collaborative skills. The research concludes that these technologies not only reconfigure engineering education, emphasizing a practical and updated approach, but also facilitate a more interactive and effective learning experience. This study highlights the urgent need to adapt educational programs to incorporate these innovations, thus ensuring that future engineers are better prepared to face the challenges of modern industry.
Volume: 14
Issue: 3
Page: 1804-1814
Publish at: 2025-06-01
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