This paper is seeks to investigated the problem of time delay in the production activities of manufacturing industries in Nigeria. This research work is focused on how to identify the root causes of time delay and its solutions in the production activities of manufacturing industries in Nigeria. This also involves identifying the research gaps that need to be pursued further to better understand time delay and the limitations associated with them. The research has identified the works of literature that discusses challenges and limitations of time delay and minimize its effect in production activities. Due to the increase in industries application, there is significant interest in an efficient simulation and optimization of strategies to reduce time delay in production activities. A manufacturing industry (Support system (SS) LTD) work process route sheet is used to demonstrate how the factors using the arena simulation model to detect the causes and effect of time delay and how it can be reduced or eliminated. The use of case studies in the report has identified real-life challenges and opportunities that help to solve the problem of time delay in production activities manufacturing industries in Nigeria using Dangote Cement and Mantrac Nig. Ltd as case studies.
Department of Mechanical Engineering, Kogi State Polytechnic, Lokoja, Kogi State, Nigeria
Sule Ihiavi Saliu
Department of Mechanical Engineering, Kogi State Polytechnic, Lokoja, Kogi State, Nigeria
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Abioye Mayowa, Sule Ihiavi Saliu, "Investigation on Various Optimizing Strategies used to Reduce Time Delay in Production Activities of Manufacturing Industries in Nigeria" International Journal of Latest Technology in Engineering, Management & Applied Science-IJLTEMAS vol.12 issue 4, April 2023, pp.01-07 URL: https://doi.org/10.51583/IJLTEMAS.2023.12401
This study explores the instructional leadership (IL) role of primary school principals in Sri Lanka. The purpose of this study was to examine the practices of primary school principal’s role as instructional leader. The main research questions of the study were to find out what roles principal’s play as instructional leader in primary schools; Identify how primary school principal fulfill his/her instructional leadership role? And which activities do principals as instructional leaders engage in promoting the education of students and upgrading the pedagogy of teachers in primary schools. The multiple case study method was used in the current study. Accordingly, Semi-structured interview, focus group discussion, observation and document analyses were used as data collecting tools. As the study sample four principals, and four teachers were selected using purposive sampling for interviews. The study found that all principals in the sample experienced in implementing instructional leadership roles. Also, the study shows that the traditional role of principals as school leaders has been changed to instructional leaders. All the primary school principals mentioned that they implement innovative methodologies to overcome challenges that they face when implementing instructional leadership roles in their schools. Also the study found that a significsnt attention was paid on instructional supervision, giving feedback on instruction, provision of instructional materials and incentives for teaching and learning and protection of instructional time by primary schools principals as instructional leaders. The study further revealed that the opportunities available for primary school principals to acquire leadership training at an appropriate stage in their career are limited. It was further revelaed that Irrespective of education Zone the management of curriculum and instructional programs is a shared responsibility of principals and teachers in schools. However, principals should engage in all the roles related to instructional leadership in order to promote effective teaching and learning and thereby transform the school as an organisation into an environment where teachers and students reach their full potential. Therefore it is recommended that the primary school principals need to be trained in school management and leadership in order to be further competent as instructional leaders in primary schools in Sri Lanka.
Senior Lecturer, Department of Social Science Education, Faculty of Education, University of Colombo, Sri Lanka
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H. M. Lalitha Kumari, "Instructional Leadership Role of Primary School Principals in Sri Lanka " International Journal of Latest Technology in Engineering, Management & Applied Science-IJLTEMAS vol.12 issue 4, April 2023, pp.08-17 URL: https://doi.org/10.51583/IJLTEMAS.2023.12402
Innah Peter EBILOMA and Nemile Victoria SHAIBU. (Mrs.)·April 2023·pp. 18-29
The safety of food has been an issue of concern in developing countries like Nigeria where the processing method can pose some environmental health challenge. The use of scrap automobile tires to singe meat has been reported to possess some toxic materials that can pose health challenge to humans. Hence, this study was conducted to determine the concentration of heavy metals in meat singed with fire wood and scrap tires in Lokoja, Nigeria. Samples of cattle hides singed with firewood and scrap tires were collected from four (4) different abattoirs and analyzed for the concentration of Cu, Pb, Fe and Zn using Atomic Absorption Spectrophotometry. There was significant increase in the concentration of Cu, Zn and Pb of the cattle hides singed with firewood and scrap tires when compared to the unsinged. The concentration of heavy metals for firewood singed cattle hide is within recommended Maximum Permissible Levels (MPLs) of the European Commission Regulations while the concentration of scrap tires is above the recommended Maximum Permissible Levels (MPLs) of the European Commission Regulations for Cu, Zn and Fe. Though there was increase in the concentration of Fe it is within the recommended Maximum Permissible Levels. The presence of heavy metals concentration above the permissible levels in cattle hides singed with scrap tires makes it unsafe for human consumption hence safer method should be adopted by the abattoirs.
School of Applied Sciences, Department of Science and Laboratory Technology, Kogi State Polytechnic, Lokoja Nigeria
Nemile Victoria SHAIBU. (Mrs.)
School of Applied Sciences, Department of Science and Laboratory Technology, Kogi State Polytechnic, Lokoja Nigeria
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Innah Peter EBILOMA and Nemile Victoria SHAIBU. (Mrs.), "Assessment of Heavy Metal Residues in Hides of animals Singed with Tyres, and Public Health Implications Associated with such Practice in Lokoja Metropolis" International Journal of Latest Technology in Engineering, Management & Applied Science-IJLTEMAS vol.12 issue 4, April 2023, pp.18-29 URL: https://doi.org/10.51583/IJLTEMAS.2023.12403
Emmanuel Asiedu, Frederick Owusu Danso, Gloria Osei-Poku, Andrew Nii Nortey Dowuona·April 2023·pp. 30-40
Eliminating hazards on construction sites has been a challenge for small and medium-sized contractors. This has contributed to the high rate of incidents that have resulted in injuries, emotional stress, and even fatalities among construction artisans. To avoid these incidences on construction sites, hazards need to be easily identified by these workers. This study sought to analyse hazards that artisans in small and medium-sized construction firms in Ghana are exposed to during project delivery. A cross-sectional design was adopted in this study. In total, one hundred and twenty (120) construction artisans were involved in the study. Data analysis revealed that several hazards exist on construction sites, and experienced workers are more likely to identify hazardous situations on construction sites than inexperienced workers. The study categorized the identified hazards on construction sites into task-induced, site-induced, and human-induced hazards. Most of the identified hazards were related to task-induced hazards. Even though contractors implement measures to eliminate hazards, most of these measures are geared towards making the working space safe rather than addressing hazards that occur during the performance of tasks. It was recommended that teamwork and collaboration among workers be encouraged to ensure safe and hazard-free sites during project execution. It was also recommended that contractors allocate resources to tackle hazards that occur during the performance of tasks and provide psychological training and counselling for their skilled workers.
Department of Building Technology, Takoradi Technical University, P. O. Box 256, Takoradi, Ghana
Frederick Owusu Danso
Department of Building Technology, Takoradi Technical University, P. O. Box 256, Takoradi, Ghana
Gloria Osei-Poku
Department of Building Technology, Takoradi Technical University, P. O. Box 256, Takoradi, Ghana
Andrew Nii Nortey Dowuona
Department of Building Technology, Takoradi Technical University, P. O. Box 256, Takoradi, Ghana
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Emmanuel Asiedu, Frederick Owusu Danso, Gloria Osei-Poku, Andrew Nii Nortey Dowuona, "Analysis of Hazards on Building Construction Sites: A Survey of Construction Artisans in Small and Medium-sized Construction Firms in Ghana" International Journal of Latest Technology in Engineering, Management & Applied Science-IJLTEMAS vol.12 issue 4, April 2023, pp.30-40 URL: https://doi.org/10.51583/IJLTEMAS.2023.12404
This paper proposes a neuro-fuzzy excitation control model to enhance the rotor angle stability of synchronous generators. The proposed model combines the advantages of both neural networks and fuzzy logic control to improve the performance of the excitation system. The proposed model is designed to regulate the excitation system to generate the required reactive power and maintain the synchronous operation of the generator. The proposed model is tested on a single-machine infinite-bus power system, and the results are compared with a conventional proportional-integral (PI) controller. The simulation results demonstrate that the neuro-fuzzy excitation control model provides better performance than the PI controller in terms of transient stability, damping oscillations, and response to disturbances. The proposed model also shows robustness against changes in system parameters and different operating conditions. The results of this study suggest that the neuro-fuzzy excitation control model can be a suitable alternative to conventional PI controllers in enhancing the rotor angle stability of synchronous generators.
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Asanya.O.N, Uju.I.U., S.E.Abonyi, Ozor.G.O, "Enhancing Rotor Angle Stability of Synchronous Generators Using Neuro-Fuzzy Excitation Control Model" International Journal of Latest Technology in Engineering, Management & Applied Science-IJLTEMAS vol.12 issue 4, April 2023, pp.41-49 URL: https://doi.org/10.51583/IJLTEMAS.2023.12405
