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Asian Journal of Science, Technology, Engineering, and Art
Published by Lembaga Yasin Alsys
ISSN : 30255287     EISSN : 30254507     DOI : https://doi.org/10.58578/AJSTEA
Core Subject : Science, Art, Social, Engineering,
Arts Computer Science & IT Engineering Social Sciences
Asian Journal of Science, Technology, Engineering, and Art [3025-5287 (Print) and 3025-4507 (Online)] is a double-blind peer-reviewed, and open-access journal to disseminating all information contributing to the understanding and development of Science, Technology, Engineering, and Art. Its scope is international in that it welcomes articles from academics, researchers, graduate students, and policymakers. The articles published may take the form of original research, theoretical analyses, and critical reviews. AJSTEA publishes 6 editions a year in February, April, June, August, October and December. This journal has been indexed by Harvard University, Boston University, Dimensions, Scilit, Crossref, Web of Science Garuda, Google Scholar, and Base. AJSTEA Journal has authors from 5 countries (Indonesia, Nigeria, Pakistan, Nepal, and India).
Arjuna Subject : Umum - Umum
Articles 231 Documents
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Lightning on Overhead Transmission Lines: Dangers and Safety Measures Imo, F. U.; Nwabueze, C. A.
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 5 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i5.7465

Abstract

Lightning-induced disruptions on power transmission lines remain a major cause of faults in high-voltage systems, often resulting in service interruptions, equipment damage, and compromised grid stability. This study examines the primary mechanisms through which lightning impacts transmission infrastructure, including back flashover, shielding failure, and induced overvoltage. To mitigate these effects and enhance system reliability, a range of protective measures are analyzed. These include enhancing insulation levels, installing controllable discharge lightning rods, reducing tower grounding resistance, deploying coupling ground wires, and utilizing line surge arrestors. Each technique is evaluated for its effectiveness in minimizing lightning-related faults and ensuring a stable power supply. The findings emphasize the importance of integrated protection strategies tailored to specific environmental and system conditions. By implementing these safeguarding measures, utilities can significantly reduce lightning-related outages and improve the resilience of power transmission networks.
Effect of Bacillus megaterium on the Physio-Chemical and Compaction Characteristics of Silty Sand Mary, Onah O.; Eberemu, A. O.; Osinubi, K. J.
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 5 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i5.7478

Abstract

Silty soil obtained from Wudil Local Government Area, Kano State—classified as A-3(0) under the AASHTO system and SP-SM under the Unified Soil Classification System (USCS)—was treated using the Microbial-Induced Calcite Precipitation (MICP) technique to enhance its geotechnical properties. The study investigated the effects of varying concentrations of Bacillus megaterium (0, 1.5 × 10⁸, 6.0 × 10⁸, 1.2 × 10⁹, 1.8 × 10⁹, and 2.4 × 10⁹ cells/ml) on the compaction and index properties of the soil. A premixing method was employed, and treated samples were prepared using bacterial suspension-to-cementation reagent ratios of 25:75, 50:50, and 75:25, with the control sample comprising 100% cementation solution. Results showed that the maximum dry density (MDD) was achieved at a bacterial concentration of 6.0 × 10⁸ cells/ml, corresponding with an optimum moisture content (OMC), indicating improved soil densification. The findings suggest that MICP treatment, particularly at optimal bacterial concentrations and reagent ratios, can enhance the compaction characteristics of silty sand, with implications for sustainable ground improvement techniques in civil engineering applications.
Training in Water Chlorination to Prevent Diarrheal Diseases in Rural Communities of Mexico Hernández, Armando Pacheco; Vargas, Carisma Monserrat Meyer
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5449

Abstract

This study addresses the crucial role of water chlorination training as a strategy to reduce the incidence of diarrheal diseases in rural communities, specifically in the health jurisdiction of Zacualtipán de Ángeles, Hidalgo, Mexico. The research employed a quasi-experimental design involving 200 households and 50 healthcare workers, divided into intervention and control groups. Participants in the intervention group underwent a structured training program focusing on water chlorination techniques, education on waterborne disease prevention, and monitoring practices. Data collection involved pre- and post-intervention surveys, water quality sampling, and diarrheal disease incidence monitoring. Statistical analysis showed a 40% reduction in diarrheal cases in the intervention group, with a significant improvement in technical knowledge and practical application of chlorination procedures. These findings highlight the effectiveness of community-based and participatory training interventions in enhancing public health outcomes in rural settings. The study also identifies challenges, such as limited resources and high staff turnover, that could hinder long-term sustainability. It concludes with a call for continuous training programs and accessible water monitoring systems to ensure consistent water quality. The research contributes to both theoretical discussions on public health education and practical frameworks for implementing low-cost, high-impact interventions in underserved communities.
Unidirectional and Bidirectional Coupling Combination Synchronization of Double-Well Duffing Oscillators and Van der Pol Duffing Oscillators Using Linear State Feedback Control Techniques Njah, A. N.; Lasisi, A. M.; Olabisi, O.; Adeshina, A. H.
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5453

Abstract

This paper investigates the synchronization of complex dynamical systems, specifically Double-Well Duffing Oscillators and Van der Pol Duffing Oscillators, using unidirectional and bidirectional coupling with linear state feedback control techniques. These oscillators exhibit nonlinear behavior that is widely relevant in engineering and physics, and their coupling mechanisms play crucial roles in applications like signal processing, secure communications, and mechanical systems. In this work, linear state feedback control was employed. The synchronization behavior under both unidirectional and bidirectional coupling schemes was examined. The system was observed by analyzing the stability, convergence rate, and effectiveness of the coupling. MATLAB software was used to validate the feasibility and effectiveness of the linear feedback coupling technique. The results demonstrate that combination synchronization can be achieved through the application of linear state error feedback control techniques in either unidirectional coupling or bidirectional coupling.
Nutritional Biochemistry Efficiency in Ruminants: A Meta-Analytical Perspective Pacheco-Hernández, Armando
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5463

Abstract

The present study is a meta-analysis of the literature on nutritional biochemical efficiency in ruminants, based on publications between 2020 and 2024. The main objective was to evaluate how the digestion and absorption of nutrients, such as proteins, fibers and carbohydrates, impact the health and productivity of ruminants, including cattle, sheep and goats. Twenty-five studies were selected that met the inclusion criteria, such as the use of quantitative data and the availability of nutritional indicators, such as digestibility and volatile fatty acid (VFA) production. Dietary interventions, such as the addition of prebiotics and digestive enzymes, were analyzed to determine their effect on nutritional efficiency. Prebiotics, such as inulin and fructooligosaccharides (FOS), improved fiber digestibility by 12%, while enzymes showed a more variable improvement of 8% in carbohydrate digestibility. The study used statistical tools to assess heterogeneity between studies and robustness of results. Considerable variability in ruminant response to digestive enzymes was identified, and subgroup analysis indicated that species influences the effects of dietary interventions. Although publication bias was not significant, it is recommended that future research publish both positive and negative results to improve overall understanding of interventions. It is concluded that personalized diets, based on species-specific needs, can optimize nutritional efficiency in ruminants.
Soil Management Considerations to Improve Livestock Production Pacheco-Hernández, Armando
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5464

Abstract

This study conducted a meta-analysis to assess the importance of soil management in improving livestock production. Twenty-five empirical studies published between 2020 and 2025 that met specific inclusion and exclusion criteria were selected, focusing on soil management practices such as crop rotation, direct seeding, and cover crops. The search was conducted in academic databases such as Scopus, Web of Science, and Google Scholar, using relevant terms to ensure the quality and timeliness of the data. The results indicated that all soil management practices evaluated have significant positive effects on forage production and livestock health. Crop rotation showed a 15% increase in forage production, while direct seeding and cover crops increased production by 12% and 10%, respectively. The calculated effect sizes were 0.75, 0.68, and 0.62 for crop rotation, direct seeding, and cover crops, respectively, with moderate variability between studies. Subgroup analysis revealed that the practices were most effective in arid and semiarid regions and in dairy cattle systems. Although slight asymmetry in publication bias was identified, it was not found to significantly affect the results of the meta-analysis. Limitations of the study include variability in methodologies and quality of the studies. In conclusion, adopting sustainable soil management practices can significantly improve livestock production, highlighting the need to consider regional and livestock type-specific factors.
Effects of Annealing on the Optical and Structural Characterization of Spray-Pyrolysed Semiconductor NixZn1-xS Nanostructure Thin Films for Optoelectronic Applications Adegboyega, O.; Adeoye, A. E; Amusat, T. A; Lasisi, A. M; Olabisi, O.
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5503

Abstract

Nickel-doped Zinc Sulfide (NixZn1-xS) semiconductor materials are widely used in optoelectronic devices; however, the effects of post-annealing temperature on their properties have not been previously reported. This study investigates the impact of annealing temperature on the structural and optical properties of NixZn1-xS nanostructured thin films, synthesized using a cost-effective Chemical Spray Pyrolysis (CSP) technique. NixZn1-xS films with a thickness of 320 nm and a mole ratio of x = 0.08 were deposited on hot glass substrates at 250 °C. The precursor solutions consisted of nickel acetate, zinc acetate, and thiourea. We examined the influence of annealing temperatures of 300 °C, 400 °C, and 500 °C on the films, employing X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Ultraviolet-visible spectroscopy (UV-Vis) for characterization. XRD analysis confirmed that all samples exhibited a cubic structure with a unit cell parameter of a = 5.4090 Å and a density of 4.082 g/cm³. The calculated grain sizes for films annealed at 300 °C, 400 °C, and 500 °C were approximately 4.23 nm, 6.40 nm, and 9.54 nm, respectively. SEM images indicated improved surface homogeneity and crystallinity with increased annealing temperature. Optical characterization revealed direct band gaps of 3.82 eV, 3.6 eV, and 3.04 eV for the respective annealing temperatures, with enhanced optical transmittance and reflectance at 500 °C. The decrease in band gap with increased temperature is attributed to improved crystallinity, indicating that annealing enhances the transmittance and overall quality of the semiconductor thin films, making them suitable for optoelectronic applications.
Assessing the Impact of Pro-Poor Tourism Development on Poverty Alleviation in Imo State, Nigeria Nnajieto, Charles Chibuzor; Nnajieto, Augustina Onyedikachi
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5533

Abstract

This study assessed the impact of pro-poor tourism development on poverty alleviation in Imo State, Nigeria. Employing a descriptive survey research design, the study focused on a population of 391 staff members from the Ministry of Tourism in Imo State. Using a census sampling technique, the entire population was studied to ensure comprehensive coverage. Data were collected through a structured instrument titled the Pro-Poor Tourism Development and Poverty Alleviation Questionnaire (PPTDPAQ), which was validated by three subject-matter experts to ensure content relevance and reliability. The collected data were analyzed using mean and standard deviation to determine trends and patterns. The findings revealed that tourism development initiatives in Imo State are significantly aligned with pro-poor tourism principles, promoting local employment, enterprise support, and community participation. Moreover, the study established that such initiatives have contributed meaningfully to poverty alleviation among local populations by creating economic opportunities and improving livelihood conditions. Based on the findings, the study recommended that the government implement skill acquisition programmes tailored to tourism-related jobs, thereby enhancing local capacity. Furthermore, it emphasized the need for transparent and equitable distribution of tourism revenues to ensure inclusive and sustainable poverty reduction outcomes.
Advances in Magnetic Gradiometry for Aeromagnetic Surveys: Principles, Applications, and Future Directions – A Comprehensive Review Charles, Ogunkoya Olubunmi
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5603

Abstract

Magnetic gradiometry has revolutionized aeromagnetic surveys, offering high-resolution mapping of subsurface structures and mineral deposits. This review explores the principles, instrumentation, data processing methods, and applications of the technique in geophysical exploration. Recent advancements in sensor technology, particularly the development of superconducting quantum interference devices (SQUIDs), have facilitated the implementation of full tensor magnetic gradiometry (FTMG), enabling higher-resolution subsurface characterization. The integration of these systems with unmanned aerial vehicles (UAVs) has significantly enhanced survey adaptability and spatial coverage. Furthermore, advanced data processing methodologies, such as multifractal singular value decomposition (MSVD) and optimized empirical mode decomposition (EMD) techniques, have substantially improved noise suppression and anomaly detection capabilities in geophysical datasets. Novel edge detection filters and 3D inversion algorithms have improved interpretation capabilities. Magnetic gradiometry has found applications in mineral exploration, hydrocarbon detection, geological mapping, and archaeological investigations. Its integration with other geophysical methods has proven effective for comprehensive subsurface characterization. While challenges persist in noise reduction and interpretation ambiguities, ongoing research in sensor technology, data processing, and integration with artificial intelligence promises to expand the capabilities of this powerful geophysical exploration technique.
Multinutritional Blocks in Ruminants: A Strategic Look from Agribusiness through Meta-Analysis Pacheco Hernandez, Armando; Bonilla-Landaverry, Gesly Anibal
Asian Journal of Science, Technology, Engineering, and Art Vol 3 No 3 (2025): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v3i3.5627

Abstract

The production of ruminants in grazing systems represents a key alternative to achieve sustainable food, since fodder is one of the most economical and natural sources for these animals. However, one of the most critical challenges in many regions of the world are recurring droughts, which limit the availability of grass and affect livestock productivity. Faced with this scenario, multinutritional blocks (BMN) arise as an accessible and effective solution, since they provide energy, protein and mineral supplementation during the dry season, improving the digestibility of fodder and animal performance. This study aimed to carry out a meta -analysis of scientific literature on BMN published since 2017, with emphasis on its use in cattle, sheep, goats, buffalos and other ruminant species, both for the production of meat and milk. Data collection was carried out through the Scopus and Google Scholar platforms, using inclusion criteria focused on scientific articles focused on the formulation and application of BMN, and excluding thesis, technical articles, interviews and non -scientific materials. The results suggest that, although there is evidence of the benefits of BMN, there is still a significant need for deeper research in this field. This technology represents a strategic tool to improve the profitability of the agricultural sector, especially in climate stress contexts.

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