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Design and Development of Effective Multi-Level Cache Memory Model Udoka, Eze Val Hyginus; Eze, Martin Chinweokwu; Edozie, Enerst; Eze, Esther Chidinma
International Journal of Recent Technology and Applied Science (IJORTAS) Vol 5 No 2: September 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.ijortas-0502.515

Abstract

An algorithm to determine the effectiveness and efficiency of a multi-level cache was developed in this paper. The developed model was used to test the efficiency rate, the relationships and the performance output level of a computer concerning the cache properties. This research paper showed that the level of cache and access time increases with the absolute hit rate but decreases with the relative hit rate. The number of cache levels varies directly with absolute access time and inversely with relative access time. The level one cache with set associativity of one has the highest access time and as the associativity and cache levels increase the memory access time decreases. The increase in the number of set associativity leads to an increase in cache performance and as well increases the performance speed of a computer.
The Differences between Single Diode Model and Double Diode Models of a Solar Photovoltaic Cells: Systematic Review Udoka, Eze Val Hyginus; Umaru, Kalyankolo Umaru; Edozie, Enerst; Nafuna, Ritah; Yudaya, Nansukusa
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0502.541

Abstract

This research paper systematically reviewed and investigated single diode model and double diode model of a solar photovoltaic systems in terms of accuracy, differences under major unknown PV parameters, different optimization and fabrication. This research paper reviewed the differences and the similarities between the single diode model and double diode model. From the review, it was clear that single diode model has less computation time and number of unknown parameters compared to double diode model. The double diode model on its own superiority is more accurate under solar shading condition effect than single diode model but single diode model performs better under high insolation levels. None of the two models is superior than the other but the solar photovoltaic modelers/installers should bear the solar irradiance of the environment before installation
Employer’s Administrative Strategies as Correlates to Workers’ Job Performance Esther, Eze Chidinma; Udoka, Eze Val Hyginus
Journal of Humanities and Social Sciences (JHASS) Vol 5 No 2: August 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jhass-0502.547

Abstract

This research study was carried out in public secondary schools in Obollo-Afor Education Zone of Enugu state to investigate principals’ administrative strategies as correlates of teachers’ job performance. This research study was guided by two research question and two formulated hypotheses whereas correlational survey design was adopted in the study. The population size of the study was 1854 which comprised of both the principals and teachers in selected 48 public secondary schools in Obollo-Afor education Zone of Enugu state, Nigeria. Proportionate stratified random sampling technique was used to obtain a sample size of 605 teachers for the study. This research was guided by two formulated research questions titled Principals’ Administrative Strategies Questionnaire (PASQ) and Teachers’ Job Performance Questionnaire (TJPQ) which were used as instrument for data collection. Cronbach Alpha method was used to obtain the internal consistency of the used instruments PASQ and TJPQ which yielded 0.73 and 0.72 respectively. Data collected were analyzed using regression analysis while regression ANOVA was used in testing the formulated hypotheses at 0.05 level of significance. The research result also showed that a high positive relationship exists between principals’ strategies in open communication and management of staff welfare and teachers’ job performance in Public secondary schools. This study among others recommended that principals in public secondary schools should adopt positive administrative strategies as identified in this study to promote teachers’ job performance.
Mobile Disinfectant Spraying Robot and its Implementation Components for Virus Outbreak: Case Study of COVID-19 Udoka, Eze Val Hyginus; Edozie, Enerst; Davis, Musika; Dickens, Twijuke; Janat, Wantimba; Wisdom, Okafor; Umaru, Kalyankolo; Nafuna, Ritah; Yudaya, Nansukusa
International Journal of Artificial Intelligence Vol 10 No 2: December 2023
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.ijai-01002.551

Abstract

The virus pandemic COVID-19 outbreak brought a huge pressure to the public healthcare system worldwide, especially in developing African countries like Uganda. The Educational system and institutions were put on a standstill due to no quick countermeasures to make the environment clean and safe for normal activities to continue. This paper successfully and comprehensively reviewed the Bluetooth and smart disinfectant spraying robot that successfully controlled the spread of the deadly virus. It also detailed different components that made up the complete spraying robot systems and from this it was observed that spraying robot systems are made up of almost the same components for implementations but differs on program that is embedded on the microcontroller due to different functions. This programing differs based on the functions that the designer/programmer wants the robot to do despite using almost the same components. This research review paper will act as guide for future researchers when designing and implementing a mobile spraying robot.