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Institution

Cross River University of Technology

EducationCalabar, Nigeria
About: Cross River University of Technology is a education organization based out in Calabar, Nigeria. It is known for research contribution in the topics: Population & Exergy. The organization has 465 authors who have published 507 publications receiving 2705 citations.


Papers
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DOI
01 Feb 2015
TL;DR: In this article, the authors examined inventory management practices in flour milling manufacturing firms and their effects on operational performance and revealed significant differences between effective management of inventory and optimal operating performance, while firms that scientific inventory management approaches reported efficiency in capacity utilization, increased service level, and reduced lead time, others with unscientific strategies had minimal utilization of material resources.
Abstract: This study examines inventory management practices in flour milling manufacturing firms and their effects on operational performance. Five flour manufacturing firms with aggregate staff population of 2569 constituted the unit of study. From the population space, 150 respondents were randomly selected. Structured questionnaire was the major instrument for the collection of relevant primary data while mean and standard deviation was used to analyze descriptive data. Results showed that exception of the large manufacturing companies, most of the medium-sized flour milling firms adopts different inventory management strategies from the scientific models. Their inventory management strategies and policies were rather based on factors such as changing level of customer demand, prevailing industry practices, forecast estimates and guesses, and available production capacity. Findings also revealed significant differences between effective management of inventory and optimal operating performance. For instance, while firms that scientific inventory management approaches reported efficiency in capacity utilization, increased service level, and reduced lead time, others with unscientific strategies had minimal utilization of material resources. There is need for flour manufacturing firms to implement scientific inventory management models to adequately handle material shortages, product stock outs, and component pile up with consequent penalties.

26 citations

Journal ArticleDOI
TL;DR: In this article, an exposition of foreign exchange market and economic growth in an emerging economy -the Nigerian case is presented, focusing on the implications of exchange rate movement on economic growth, and maintaining that exchange rate policy should be designed to bridge the savings investment gap so as to enhance government revenue and reduce the fiscal Lacuna through the curtailing of deficit geared at increased and sustained economic growth.
Abstract: This study is an exposition of foreign exchange market and economic growth in an emerging economy - the Nigerian case. The paper focuses on the implications of exchange rate movement on economic growth. The ordinary least square (OL5) technique was adopted using time series data on exchange rate movement, volatility of exchange rate (EXCHR) labor force, gross domestic investment and technology, volatility of exchange rate is measured by three years moving average of standard deviation of real exchange rate. The paper maintains that in view of the positive relationship between exchange rate, volatility and economic growth in Nigeria, exchange rate policy should be designed to bridge the savings investment gap so as to enhance government revenue as well as reduce the fiscal Lacuna through the curtailing of deficit geared at increased and sustained economic growth. Gross domestic investment should also be sustained since this leads to significant economic development.

26 citations

Journal ArticleDOI
TL;DR: In this article, a new slug frequency correlation that accounts for liquid viscosity and gas superficial velocity, hitherto not included in other correlations was proposed, which gave the best prediction with an average absolute percentage error (AAPE) of 19.91%.

25 citations

Journal ArticleDOI
TL;DR: Though these individual plants extracts exhibited significant increase in amelorating diabetes complication and blood glucose control compared to glibenclamide, a synthetic antidiabetic drug, greater performance was observed in the synergy groups.
Abstract: Insulin therapy and oral antidiabetic agents/drugs used in the treatment of diabetes mellitus have not sufficiently proven to control hyperlipidemia, which is commonly associated with the diabetes mellitus. Again the hopes that traditional medicine and natural plants seem to trigger researchers in this area is yet to be discovered. This research was designed to compare the biochemical effects of some medicinal plants in alloxan-induced diabetic male Wistar rats using named plants that are best at lowering blood glucose and hyperlipidemia and ameliorating other complications of diabetes mellitus by methods of combined therapy. The results obtained showed 82% decrease in blood glucose concentration after the 10th hour to the fortieth hour. There was significant increase P 0.05 recorded in the glutathione peroxidase activity of E. globulus (100 mg/kg) when compared to the test groups of P. guajava (250 mg/kg) and X. aethiopica (250 mg/kg). Catalase activity showed significant increase P 0.05, there was no significant difference seen between test group and treated groups. Meanwhile, degree of significance was observed in other parameters analysed. The biochemical analysis conducted in this study showed positive result, attesting to facts from previous works. Though these individual plants extracts exhibited significant increase in amelorating diabetes complication and blood glucose control compared to glibenclamide, a synthetic antidiabetic drug. Greater performance was observed in the synergy groups. Therefore, a poly/combined formulation of these plants extracts yielded significant result as well as resolving some other complications associated with diabetics.

25 citations

Journal Article
TL;DR: In this paper, the performance of grid-based gas turbine power plants in Nigerian energy utility sector is presented based on second law analysis (energy and exergy) for evaluating the performance parameters for the turbine plants and identifying components of the turbine system that offer opportunities for thermodynamic improvement.
Abstract: Thermodynamic assessment of grid-based gas turbine power plants in Nigerian energy utility sector is presented based on second law analysis (energy and exergy). The primary objective of this study is to evaluate the performance parameters for the turbine plants and identify components of the turbine system that offer opportunities for thermodynamic improvement. The performance of the plants were estimated by component-wise modeling and a comprehensive break-up of energy and exergy losses for the considered plants were determined using the daily operating data. Performance analyses based on energetic and exergetic criteria such as thermal efficiency, exergy efficiency, exergy destruction rate, efficiency defect and exergetic performance coefficient were performed based on these operating data for all the considered plants. The percentage ratio of the exergy destruction to the total exergy destruction in the plants was found to be maximum in the combustion chamber followed by the turbine, calculated to be between 6.7-7% for compressor, 16.6-18 % for turbine and 74 and 85% for combustion chamber. The combustion chamber and turbine are the two components found from the research to offer opportunity for thermodynamic improvement. However, the results obtained are found to provide comprehensive information for which plant performance improvement and optimization can be obtained.

24 citations


Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20233
202211
202152
202057
201950
201846