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28,451 Article Results

Artificial raindrop algorithm for control of frequency in a networked power system

10.11591/ijpeds.v16.i2.pp1116-1123
Lakshmi Dhandapani , Pushpa Sreenivasan , Malathy Batumalay
Load frequency control (LFC) evaluates the net changes in generation by continuously monitoring tie-line flows and system frequency required relying on load changes. It adjusts generator set points to minimize the area control error's (ACE) time-averaged value. ACE is regarded as a controlled output of LFC. Previous research focused on customary power systems like hydro-hydro, thermal-thermal, and hydro-thermal configurations. This current development study introduces the hybrid PV and dual thermal system interconnected systems for LFC analysis. The research evaluates LFC performance with different controllers, considering parameters such as maximum peak overshoot (Mp), maximum undershoot (Mu), settling time (Ts), and peak time (Tp). Controllers, including proportional integral (PI), anti-windup PI, fuzzy gain scheduling PI, and A cutting-edge algorithm generating fake raindrops are used for minimize ACE. The analysis introduces various load perturbations to observe controller performance in interconnected power systems. Both PV-thermal-thermal and thermal-thermal-thermal systems exemplify innovative approaches to energy management that bolster energy efficiency and sustainability. By integrating these advanced systems, we can make significant strides towards achieving global sustainability goals and promoting a cleaner and support energy efficiency for the future.
Volume: 16
Issue: 2
Page: 1116-1123
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

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

Emotional empathy predicting subjective well-being: undergraduate and graduate comparison

10.11591/ijere.v14i3.32444
Samer Adnan Abdel Hadi , Mahmoud Fisal Alquraan
The current study aims to determine if emotional empathy predicts subjective well-being among undergraduate and graduate students. The current quantitative investigation is based on the survey research design. Participants were students from Al Ain University’s Abu Dhabi and Al Ain campuses (n=307). Data were gathered using the multidimensional emotional empathy scale (MDEES) and the subjective well-being scale (WeBs). The study found that increasing emotional empathy resulted in enhanced subjective well-being among undergraduate and graduate students. The findings also revealed that an increase in the emotional attention component of emotional empathy is associated with a decrease in subjective well-being. The suffering component of emotional empathy makes the greatest contribution to predicting subjective well-being among undergraduate and graduate students. The component of feeling for others ranks second in terms of capacity to predict subjective well-being among undergraduate students. Positive sharing is the second most effective predictor of subjective well-being among graduate students. We discovered that there is a need to increase college students’ subjective well-being, which has a major impact on their overall well-being.
Volume: 14
Issue: 3
Page: 1695-1705
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

Optimizing energy management in electric vehicle charging using firefly algorithm

10.11591/ijpeds.v16.i2.pp864-872
Muhammad Ridha Fauzi , Azriyenni Azhari Zakri , Syafii Syafii
The transition to electric vehicles (EVs) poses significant challenges in the management of electric vehicle charging stations (EVCS), especially regarding the integration of renewable energy to ensure efficiency and sustainability. This study aims to optimize the energy management system in EVCS that takes into account technological aspects. The algorithm being proposed is specifically created for a 100 kW EVCS and utilizes the firefly algorithm to maximize renewable energy utilization and minimize charging costs. The research methodology includes the development of an optimization framework that combines solar power generation with the Firefly-based optimization algorithm, which considers factors such as power demand, battery capacity, and tariff fluctuations. Simulations show that the algorithm is able to increase solar energy utilization by up to 80%, while reducing charging costs during peak hours. The results also emphasize the importance of real-time energy management to address power demand fluctuations and reduce adverse impacts on the electricity grid. This study concludes that the firefly algorithm is effective in supporting energy management in renewable energy-based EVCS, providing essential knowledge for the development of sustainable charging system within the future.
Volume: 16
Issue: 2
Page: 864-872
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

Socioeconomic factors as predictors of creative thinking in teenagers: a study in the Kazakh context

10.11591/ijere.v14i3.31793
Aikun Kuspanova , Bakhadurkhan Abdimanapov , Kulyash Kaimuldinova , Emin Atasoy , Armanay Savanchiyeva
This study investigates the influence of socioeconomic factors on the creative thinking of teenagers in Kazakhstan, as perceived by parents and teachers. Creative thinking is recognized as a vital skill in modern education, yet its relationship with socioeconomic factors remains underexplored in the Kazakh context. This research addresses this gap by examining how school and family environments, shaped by socioeconomic status (SES), impact teenagers' creative abilities. Using a combination of open and closed-ended questionnaires, data were collected from 121 parents and 922 teachers across Kazakhstan. Spearman correlation analysis revealed a significant relationship between SES and creative thinking, with higher socioeconomic conditions correlating with greater creativity. These findings suggest that enhancing socioeconomic conditions in educational and family settings can foster creative thinking in teenagers. The study concludes by emphasizing the need for targeted educational policies that address socioeconomic disparities to support creative development in students.
Volume: 14
Issue: 3
Page: 2154-2166
Publish at: 2025-06-01

Implementation of closed-loop field-oriented control for PMSM on rehabilitation robot using BTS 7960

10.11591/ijpeds.v16.i2.pp728-739
Vita Ayu Nathalia , Dimas Adiputra , Rifki Dwi Putranto
The efficiency of control systems in permanent magnet synchronous motors (PMSM) is crucial, especially for applications in physiotherapy robots. Previous studies have demonstrated that an open-loop field-oriented control (FOC) driver using BTS7960 outperforms the commonly used electronic speed controller (ESC). This research addresses the challenge of further improving efficiency by employing a closed-loop FOC driver with the BTS7960. The research methodology involves two main stages. First, a PSIM software simulation of a closed-loop FOC using a proportional integral (PI) controller is conducted. The aim is to determine the P and I parameters that result in the smallest settling time, steady-state error, and overshoot in controlling the PMSM motor's rotation per minute (RPM). The second stage involves hardware implementation with the BTS7960, where the PMSM motor RPM is compared under various loads ranging from 10-gram to 60 gram. RPM results from both open-loop and closed-loop configurations are compared. The results show that the closed-loop FOC driver has improved system transient response compared to the previous open-loop FOC driver, notably reducing the settling time from 2.24 seconds to 1.45 seconds for a 60 gram load. Therefore, this research concludes that a closed-loop configuration with well-tuned PI parameters can deliver better performance compared to open-loop methods, as clearly demonstrated.
Volume: 16
Issue: 2
Page: 728-739
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

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

The computer, information and communication technology, and communication skills of Thai Rajabhat University students

10.11591/ijere.v14i3.32461
Sunan Siphai , Jirattikorn Siphai , Jittirat Saengloetuthai , Jaruwan Sakulku
The lack of comprehensive data on computer, information and communication technology (ICT), and communication skills among Thai Rajabhat University students poses a challenge in developing effective educational strategies that enhance student employability and future readiness. To address this gap, this study aimed to assess these skills and analyze the skill profiles of students from Rajabhat Universities across Thailand. A total of 1,165 students were selected through multi-stage sampling, and their skills were measured using a researcher-developed 5-point Likert scale questionnaire. The results showed high levels of self-reported skills, with communication skills being the highest (mean=3.84, SD=0.669), followed by ICT (mean=3.81, SD=0.676) and computer skills (mean=3.65, SD=0.628). Latent profile analysis (LPA) identified four potential models with 2, 3, 4, and 5 groups, with the four-group model offering the best fit (likelihood=-1887.336, Akaike information criterion (AIC)=3810.673, Bayesian information criterion (BIC)=3901.762, Akaike’s Bayesian information criterion (ABIC)=3844.587, entropy=0.940). These findings provided critical insights for curriculum development and tailored interventions, supporting universities in meeting diverse student needs and improving educational outcomes.
Volume: 14
Issue: 3
Page: 1752-1760
Publish at: 2025-06-01

Experiential learning using Google Classroom on students’ academic performance and motivation in language subject

10.11591/ijere.v14i3.29489
Loh Boon Ping , Norasykin Mohd Zaid , Nor Hasniza Ibrahim , Johari Surif , Megat Aman Zahiri Megat Zakaria , Hendro Permadi
This study investigates the effectiveness of experiential learning using Google Classroom on year 2 students’ academic performance and motivation in Malay language. This study also highlighted the elements in Google Classroom’s experiential learning that motivate students to achieve academic performance. The study conducted with 32 students at Chinese primary school in Johor Bahru; utilized online pre-tests, post-tests, and 5-point Likert scale online questionnaire to identify students’ motivation level. Results revealed significant improvements in students’ Malay language post-test scores, indicating the effectiveness of experiential learning using Google Classroom. Descriptive statistics showed a high level of student motivation, significantly motivated by the experiential learning treatment using Google Classroom, with the materials provided by the teacher being the most preferred by students and effective element in motivating them to achieve academic success. The study suggests that implementing experiential learning with Google Classroom positively influences academic performance in Malay language. Teachers, schools, and communities are suggested to review current learning methods and platforms; and strive to incorporate experiential learning through Google Classroom to enhance students’ academic performance in Malay language. Future studies are encouraged to provide more reliable data, particularly within the context of Chinese primary schools in Malaysia, to further enrich educational practices.
Volume: 14
Issue: 3
Page: 2304-2313
Publish at: 2025-06-01

Dynamic model and control strategies of battery-supercapacitor hybrid power sources for electric vehicles: a review

10.11591/ijpeds.v16.i2.pp695-709
Adnan Rafi Al Tahtawi , Arief Syaichu Rohman , Pranoto Hidaya Rusmin , Arwindra Rizqiawan
The addition of a supercapacitor to electric vehicles is considered beneficial for extending battery lifetime. Due to its higher power density compared to the battery, a supercapacitor can efficiently handle sudden high-current demands. However, to achieve energy efficiency, a specific control strategy is required for this battery-supercapacitor (Batt-SC) hybrid power source (HPS). This paper reviews the dynamic model of the Batt-SC as HPS for electric vehicles and explores its various control strategies in order to achieve energy efficiency. A high-fidelity model, a control-oriented model, and an integrated dynamic model are presented. Various control strategies are then discussed, including high-level control, low-level control, and DC bus voltage regulation. This paper also identifies several key research opportunities, such as developing an integrated dynamic model of a hybrid Batt-SC electric vehicle, combining high-level and low-level control into a unified control strategy, and designing an optimal-adaptive controller that can minimize a certain performance index by considering nonlinearity factors.
Volume: 16
Issue: 2
Page: 695-709
Publish at: 2025-06-01

Challenges and opportunities in strategic educational planning: a systematic literature review

10.11591/ijere.v14i3.32750
Semail Endo , Abdul Halim Busari , Dayang Kartini Abang Ibrahim
Strategic educational planning is essential for adapting to the evolving landscape of education, driven by socio-economic, technological and exceptional global health crisis. This systematic literature review explores the complex challenges and opportunities in strategic educational planning, synthesizing insights from diverse studies to provide a comprehensive understanding. The problem statement addresses the necessity for effective strategic planning to ensure educational resilience, quality and inclusivity amidst changing external conditions. To achieve this, we conducted an extensive search of scholarly articles from reputable databases such as Scopus and Web of Science, focusing on studies published between 2020 and 2024. The flow of study based on preferred reporting items for systematic reviews and meta-analyses (PRISMA) framework. The database found (n=33) final primary data was analyzed. The finding was divided into three themes which is: i) educational strategies and innovations; ii) organizational and strategic management in education; and iii) impact and adaptation to external challenges in education. The review indicate that strategic educational planning must prioritize flexibility, stakeholder engagement and continuous improvement to navigate future challenges effectively. This review underscores the fundamental role of strategic planning in transforming educational systems to be more adaptive, inclusive and forward-thinking, ultimately enhancing their capacity to meet the diverse needs of learners in an ever-changing global context.
Volume: 14
Issue: 3
Page: 1621-1632
Publish at: 2025-06-01
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