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Abdul Hafid Hasim
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International Journal of Environment, Engineering, and Education
Published by Three E Science Institute
ISSN : -     EISSN : 26568039     DOI : https://doi.org/10.55151/ijeedu
Core Subject : Science, Education, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science
The International Journal of Environment, Engineering, and Education [e-ISSN: 2656-8039] is a peer-reviewed, open-access journal that is published three times a year [in April, August, and December]; this journal provides the right platform for authors to update their knowledge, information, and share their research results with the more significant scientific community publishing research articles explaining the ecological, technical, and educational impact of research from various disciplines publishing research articles explaining the environmental, technical, and educational implications of research from multiple disciplines publishing research As an interdisciplinary scientific publication, this journal encourages collaboration between researchers, academics, practitioners, and policymakers in various sectors to develop sustainable solutions to address environmental, engineering, and educational problems and promote sustainable development.
Arjuna Subject : Umum - Umum
Articles 99 Documents
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Development and Characterization of a Biodegradable pH Indicator Film Using Plant-Based Pigments Perera , Hasith; Hosan, Shen; Wijesekara, Dasith; Vithanage, Vimukthi; Koswattage, Kaveenga Rasika
International Journal of Environment, Engineering and Education Vol. 7 No. 1 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i1.193

Abstract

Natural pigments derived from plants present a promising alternative to synthetic dyes for use as pH indicators, owing to their sustainable nature and minimal environmental impact. This study investigates the extraction and characterization of plant-based pigments to create pH-sensitive paper materials. Unlike synthetic pH indicators, which contribute to chemical waste and environmental pollution, these biodegradable alternatives offer an eco-friendly solution for pH testing. The work outlines a systematic approach to evaluate the color changes of plant pigments when exposed to various pH levels while simultaneously developing biological pH-dependent papers and assessing their potential applications as chemical sensing devices. Pigments were extracted from the flowers of Cosmos bipinnatus, Impatiens balsamina, Tabernaemontana divaricata, and Tagetes erecta. The paper substrates were composed of fibers from Panicum virgatum (switchgrass). Color transitions were analyzed using pH meter calibration and UV-visible spectroscopic techniques. Results indicated that the floral pigments in Impatiens balsamina exhibited significant color variation with pH due to anthocyanin content, while the pigments from Tagetes erecta demonstrated stability attributed to carotenoids. The resulting paper displayed strong pH sensitivity, confirming its viability as a pH detection tool. The findings support the potential of plant-based pigments for developing responsive pH paper. Future work should focus on enhancing pigment longevity, scaling production, and exploring practical applications in environmental monitoring, food preservation, and medical diagnostics.
A Two-Dimensional Numerical Study of Evaporation by Mixed Convection of an Inclined Damp Flat Plate: A Lean Engineering Approach Using DMADV Methodology Dimbiharizafy, Ando; Rakotozandry, Andriamananarivo Ignace; Randriamorasata, Josoa
International Journal of Environment, Engineering and Education Vol. 7 No. 1 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i1.199

Abstract

This paper presents a two-dimensional numerical study of the evaporation by mixed convection of an inclined damp flat plate subjected to a constant heat flux density. Airflow, heat, and mass transfers are governed by the equations of continuity, motion, energy, and diffusion, to which boundary layer approximations are applied. Adimensionalization, implicit finite difference method, and programming on MATLAB are used to solve the equations. The methodology is designed using the FAST (Function Analysis System Technique) method and reinforced with DWADV (Define, Measure, Analyze, Design, Verify) by applying Lean Engineering and Six Sigma. The approximation in the boundary layer makes it possible to reduce the number of terms in the equations of the problem. Adimensionalization links the parameters together and reduces their number. The quantities studied no longer depend on the measurement system. Comparison with other studies allowed us to validate our results. The work ends with presenting results about the influence of the Richardson number and the flat’s inclination on non-dimensional velocity, non-dimensional temperature, non-dimensional concentration, and coefficients of exchange associated with mixed convection: friction coefficient, Nusselt and Sherwood number. The increase in the value of the Richardson number generates the opposite effect of the increase in the inclination of the plate on the parameters of mixed convection and the exchange coefficients.
Integrated Modeling Approach to Predict the Morphodynamic Impacts of the Boğaçay Project on Konyaaltı Beach Akiner, Muhammed Ernur
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.215

Abstract

This study examines the effects of the Boğaçay Project, launched in 2017 on the Konyaaltı Coast of Antalya, on shoreline evolution using a multi-model approach. The project interrupted the natural sediment cycle, impacting both short-term morphological changes and long-term coastal stability. This study evaluates these effects through integrated models. Morphological changes from excavations at the estuary cut off natural sediment transport and were integrated with (1) the Pelnard-Considère model for long-term coastal evolution, (2) the SWAT model for basin-scale transport analysis, and (3) the XBeach model for simulating coastal hydrodynamics and morphodynamics. The study employed XBeach-based high-resolution simulations to represent physical processes, elucidate the current situation, and facilitate the testing of shoreline evolution scenarios under various engineering interventions. The model, calibrated using satellite images, coastline data, and topographic scans, showed strong agreement between numerical outputs and observations, thereby enhancing model accuracy. Results indicated an average coastal retreat of 21.7 meters over the 3 years following the project. While artificial sediment feeding slowed regression by 58%, XBeach simulations revealed that the deepened estuary worsened erosion in the east by altering wave dynamics diffraction. This integrated modeling approach highlights the critical role of sediment dynamics in coastal stability, underscoring the need for revised coastal management policies. The study identifies the spatial and temporal dynamics of shoreline changes and simulates the basic morphodynamic processes, predicting the effects of intervention scenarios. This comprehensive modeling enables the development of sustainable management strategies that protect ecosystem integrity and inform engineering solutions in human-degraded coastal systems.
Upcycling C&D Waste via Mechanical Abrasion: Balancing Aggregate Quality Enhancement against Process-Induced Damage Kanaujia, Subhas Chandra; Ahmad, Syed Aqeel; Khan, Zishan Raza; Singh, Vikash
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.251

Abstract

The construction industry is a significant consumer of natural aggregates and a major contributor to carbon emissions. Recycled Concrete Aggregates (RCA) derived from Construction and Demolition (C&D) waste offer a promising sustainable alternative. This study examines how mechanical abrasion affects RCA processed in a Los Angeles (LA) abrasion drum with revolutions ranging from 100 to 1000 to find an optimal treatment window that maximizes quality without causing aggregate damage. The results indicate that coarse RCA processed at 500–600 revolutions significantly improved specific gravity (~2.55 from ~2.3) and reduced water absorption (~2.0% from ~4-5%), meeting the standards for natural aggregates. This treatment effectively removed fine mortar particles and improved durability (soundness loss ~15%), surpassing untreated RCA, which exhibited soundness losses >30%. However, excessive abrasion beyond ~700 revolutions led to an increase in fines and micro-cracking, resulting in a soundness loss exceeding 23%, failing durability criteria. The optimal abrasion range (~500 revolutions) resulted in a coarse aggregate yield of about 50%, compared to only 27% at 1000 revolutions. The study shows that on-site processing of C&D waste at this optimal level produces high-value aggregates for structural concrete, supporting the circular economy by reducing dependence on virgin aggregates and diverting waste from landfills. Cost analysis indicates that moderate abrasion (~500 revolutions) maximizes net material value while minimizing energy use and dust production. These results emphasize the viability of mechanical abrasion as a sustainable upcycling method for RCA, balancing quality improvement with process-related damage.
Recycled Concrete Aggregates from Construction and Demolition Waste: A Systematic and Critical Review of a Sustainable Construction Material Kanaujia, Subhas Chandra; Khan, Zishan Raza; Ahmad, Syed Aqeel; Singh, Vikash
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.252

Abstract

The construction sector is a major consumer of natural aggregates and a significant contributor to carbon emissions. Recycled Concrete Aggregates (RCA), sourced from Construction and Demolition (C&D) waste, offer a sustainable alternative that supports circular economy principles. However, the inferior quality of RCA—mainly due to adhered mortar and weak interfacial transition zones (ITZs)—limits its structural application. This study aims to (1) systematically identify and classify RCA enhancement methods, (2) evaluate the impact of RCA on concrete performance, particularly strength and durability, and (3) highlight key barriers and opportunities for its broader implementation in structural concrete. A systematic review of 77 peer-reviewed articles published between 2000 and 2024 was conducted using PRISMA guidelines. The review analyzed diverse RCA treatment methods—mechanical, chemical, thermal, and biological—and their influence on concrete properties. Findings show that untreated RCA can reduce compressive strength by 10–30% and increase shrinkage by up to 50%. However, treatments such as acid soaking, mechanical polishing, and carbonation significantly improve RCA quality. When combined with supplementary cementitious materials (SCMs) and optimized mix design, treated RCA enables concrete to achieve comparable performance to conventional mixes. The technical viability of high-performance RAC is well supported by recent studies. The remaining challenges lie in standardization, quality control, and adoption at scale. This review concludes that while technical solutions are mature, the primary barrier to widespread adoption is the lack of integrated, performance-based regulatory frameworks, shifting the challenge from materials science to implementation science.
The Effectiveness of a Vlog-Integrated Project-Based Learning Model on Culinary Arts Learning Achievement Asnur, Lise; Weriza, Jusmita; Fajri Putri, Meddiati
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.276

Abstract

Project-Based Learning (PjBL) is a constructivist learning model that emphasizes active student engagement through real-world projects. Implementation in vocational education often faces challenges such as limited time, high material costs, and procedural errors. This study aims to evaluate the effectiveness of integrating vlogs into Project-Based Learning, or Project-Based Learning with Vlog (PjBLV), in improving learning readiness, reducing procedural errors, and enhancing students’ culinary practicum outcomes. Employing a quasi-experimental design with a nonequivalent control group, the research involved 26 third-semester students of the Hospitality Management Program at Universitas Negeri Padang, divided equally into an experimental group (PjBLV) and a control group (PjBL). The instruments consisted of a pre-test, essay-based post-test, and practicum assessment, all validated and tested for reliability. At the same time, data were analyzed using N-Gain and independent t-tests at a 0.05 significance level. Findings revealed that the experimental group achieved a higher post-test mean score (88.67) than the control group (84.42), with an N-Gain of 80.46% categorized as high, indicating significant improvement in learning outcomes. The consistent distribution of scores demonstrated that PjBLV benefitted students across different ability levels, thereby reducing performance gaps. PjBLV proved more effective than conventional PjBL by promoting time efficiency, minimizing errors, and optimizing resources. The implications suggest that PjBLV is a promising pedagogical model for broader application in vocational education. Future studies are recommended to examine its impact on long-term skill retention and to explore the integration of interactive, technology-enhanced vlog-based learning for more personalized instruction.
The Impact of Metacognitive Strategy Training on Higher-Order Thinking Skills (HOTS) in High School Mathematics: A Quasi-Experimental Study Badolo, Mas'ud; Malik, Marwati Abd.; Nur, Rafi'ah; Latifa, Ammang
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.302

Abstract

Difficulties developing higher-order thinking skills (HOTS) in mathematics education represent a persistent and significant challenge in educational practice. These skills, such as analysis, evaluation, and creation, are essential for students to succeed in complex problem-solving and adapt to the evolving demands of the 21st century. This study assesses how effectively structured metacognitive training improves high school students' mathematical HOTS. The research employed a quasi-experimental pretest-posttest design involving 72 students from a senior high school in Indonesia, divided into two groups: an experimental group (n=36) that received metacognitive training over one semester, and a control group (n=36) that did not receive any intervention. The primary outcome measure was HOTS scores, assessed through standardized pre-test and post-test instruments designed to evaluate students' higher-order thinking in mathematics. ANCOVA results revealed a significant effect of the metacognitive intervention on HOTS post-test scores (F=44.36; p<0.001; ηp²=0.391), even after controlling for pre-test performance. The experimental group exhibited substantially greater HOTS improvements than the control group. These results prove that structured metacognitive training is an effective pedagogical strategy for fostering advanced mathematical thinking. The findings hold significant implications for curriculum designers, educators, and policymakers aiming to improve mathematics instruction, particularly within the Indonesian context. Future studies involving larger sample sizes, diverse school settings, and longitudinal follow-up are recommended to validate and extend the impact of this intervention.
Post-COVID Environmental Education in Morocco: School Clubs as Drivers of Student Engagement and Sustained Self-Reported Sustainable Practices Riouch, Abderrahmane; Benamar, Saad; Ezzeri, Halima; Cherqi, Najat
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.303

Abstract

Global environmental challenges, amplified by climate change, pollution, and socio-ecological inequities, emphasize the urgent need for educational systems that foster durable self-reported eco-responsible practices among youth. This study investigates whether participation in school-based environmental clubs enhances Moroccan secondary school students’ capacity to sustain such practices, specifically the responsible disposal of pandemic-related waste, awareness of vaccination-related medical waste risks, and water conservation within the post-COVID-19 context. A cross-sectional survey was conducted among 433 students (aged 15–19) from Fez, Sefrou, and Tangier, spanning urban and peri-urban contexts. Statistical analyses, including chi-square tests, two-way ANOVA, Principal Component Analysis (PCA), and K-means clustering, assessed the relationships between club membership, environmental knowledge, and self-reported practices. Results indicate that club members consistently reported higher self-reported eco-responsible practices (Cramer’s V = 0.20–0.22), with a mean practice score of 3.9 compared to 2.8 for non-members. PCA identified two engagement dimensions, Self-Reported Eco-Responsible Practices and Cognitive & Institutional Engagement, explaining 65.4% of total variance. Cluster analysis revealed three distinct profiles: Sustainably Engaged (25%), Latently Engaged (50%), and Unconcerned (25%). These findings confirm environmental clubs as pivotal drivers of sustained self-reported eco-responsible practices and awareness, despite territorial disparities, and support the integration of hybrid, health-oriented approaches to strengthen environmental education in underserved regions. This study highlights the critical role of school-based environmental clubs in fostering socio-ecological resilience, offering a scalable model for integrating public health and ecological sustainability into education systems, especially in post-crisis contexts.
Validating a TPACK Instrument in the Moroccan Context: A Four-Factor Model for Preservice Mathematics and Sciences Teachers Ahmichane, Jamal; Jhilal, Abdellatif; Hadder, Youness; El Mallahi, Mostafa
International Journal of Environment, Engineering and Education Vol. 7 No. 2 (2025)
Publisher : Three E Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55151/ijeedu.v7i2.294

Abstract

Numerous theoretical frameworks have been proposed to guide research on teachers’ technology integration. Among them, the Technological Pedagogical Content Knowledge (TPACK) framework has recently emerged as a prominent conceptual model, emphasizing the composite knowledge teachers require to integrate technology into teaching effectively. This study aims to investigate the development of TPACK among primary school pre-service teachers (PSTs) specializing in mathematics and science within the Moroccan context. 403 PSTs in postgraduate teacher preparation programs participated in this research and completed the TPACK survey. Their responses were analyzed using exploratory and confirmatory factor analyses (EFA and CFA). The survey instrument, consisting of 32 items, was categorized into five major subgroups corresponding to core TPACK components. Findings revealed that pre-service teachers faced difficulty distinguishing and self-reporting their technological pedagogical knowledge. The CFA results demonstrated that the constructs of TPACK, content knowledge, pedagogical knowledge, and technological knowledge were valid and reliable indicators of pre-service teachers’ competencies in this setting, despite the relatively weak convergent validity observed in the pedagogical knowledge component. The study offers implications and recommendations for future research and teacher education practices. In particular, the validated TPACK survey provides a potential diagnostic tool for assessing novice teachers’ knowledge profiles and identifying areas for professional growth. These insights enhance technology integration courses and strengthen teachers’ instructional efficacy across North African educational contexts.

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