Tag Archives: Efficiency

Dust Effect on Evacuated Tube Solar Collector in Minquin, China (Published)

In the present work, the effect of dust on the efficiency of an Evacuated Tube Solar Collector was investigated experimentally and theoretically. Experiments were performed on Evacuated Tube Solar collectors exposed to the ambient winter season in Minquin, China from 8 to 18h00. A mathematical model used for two modules, one present dust accumulation of 0 mg/m2 (clean collector) and 2.6E-05 mg/m2 (dusty collector with 15.24 % of the reduction in radiation).  The ASHRAE Standard 93-86 was used to calculate the efficiency. The results show in comparison with and without dust, the daily optical efficiency decrease of 17.6 % and the average stagnation temperature decreases from 7.30C–1.80C in a solar collector with 2.6E-05 mg/m2.

Keywords: Dust, Efficiency, Evacuated Tube Solar Collector, Minquin-China

Impact of a Cognitively Modified Instruction on Vocabulary Acquisition of Second Language Users of Grade 2: A Study Conducted in a Private American School in Dubai (Published)

This experimental study was conducted to find the impact of modified instructional strategies on the vocabulary and reading comprehension skills of grade 2 (7 year old) students of English as second language.  The main research question was that how will the cognitively modified instruction impact the vocabulary acquisition of grade two students with Arabic as first. The research hypothesis was that if the instruction in class is designed to help students acquire vocabulary skills while the cognitive load is reduced during the learning process, it will result in improved performance (Cooper 1998). To test the hypothesis, specific instruction was tailored using principles of split-attention effect, modality effect, and redundancy effect to reduce the cognitive load. The experiment group was exposed to modified instruction for four weeks, 50 minutes lesson each day. Deviation method was used to analyse the impact of modified instruction on students’ performance. Results on performance and mental effort tests of the experimental group indicated that reduced cognitive load helped increase the performance of students in vocabulary and comprehension acquisition.  Efficiency metric showed that students in experiment group demonstrated better efficiency as compared to the control group. Lesson observations were conducted to validate the delivery of the instruction as per the design. The findings of the observation reflected a higher level of student engagement. The study concludes that modified instruction with reduced cognitive load results in increased performance of the learners of the English as a second language.  The key theories consulted were theory of evolution, cognition, schema, and cognitive load theory.

Keywords: Cognition, Cognitive Load Effects, Efficiency, Second Language Acquisition

Assets Safeguard and Business Performance in Quoted Manufacturing Companies in Nigeria (Published)

The paper titled: Assets Safeguard and Business Performance in Quoted Manufacturing Companies in Nigeria empirically assessed the influence, safeguarding corporate assets exerts on business performance. The empirical referents in focus are efficiency, effectiveness and profitability. The research design adopted is the survey. Data was collected within a framework sample size of thirty-two (32) quoted manufacturing firms in Nigeria. Pearson product moment correlation and QSR Nvivo were adopted in analyzing the quantitative and qualitative data. The findings show that assets safeguard has positive and significant influence on business performance. The study conclude that safeguard of manufacturing firms assets enhances their performance through profitability operational effectiveness and resource utilization efficiency. It is therefore recommended that manufacturing firms should be conscious of their assets safeguard mechanism through proper identification and accountability of assets of all kinds to minimize wastage, losses and ownership conversion by persons of such tendencies.   

Keywords: Assets Safeguard, Business Profitability, Effectiveness, Efficiency

Esteeming the Neck and Neck for Compliance of Public Procurement Policy in the Public Institutions in Ghana (Published)

Procurement policies are rules and regulations for governing procurement procedures in public organization. The study adopted purposive sampling method in selecting the respondents from whom data was collected. A total number of Sixty-five (65) questionnaires were administered. From the study, it was revealed that there should be some level of compliance with respect to professionalism, transparency, efficiency and value for money, competitiveness and accountability, ethics and compliance with regulatory framework. It was also revealed that there are weaknesses in public procurement system. The study therefore recommended that Procurement Units in the various institutions should make sure that tender evaluation be conducted by competent persons in order to make informed decisions.

Keywords: Efficiency, Level of Compliance, Public Procurement Policies

Process Control and Business Performance in Quoted Manufacturing Companies in Nigeria (Published)

This paper seeks to examine the influence of process control on business performance of quoted manufacturing companies in Nigeria. Survey research design was adopted. Three (3) tentative assertions, hypotheses were formulated. The sample size was thirty-two (32) quoted manufacturing companies in Nigeria. Pearson product moment correlation and QSR-Nvivo aided the quantitative and qualitative data analysis respectively. The study findings indicated that process control has very positive relationship with business performance. In conclusion, profitability, effectiveness and efficiency adoption as proxies of business performance has been proven to be largely a function of process control. The study recommends that manufacturing firms should increase the control measure in the work process to ensure conformity and avoidance of deviations, in order to achieve higher performance in their operations.

Keywords: Effectiveness, Efficiency, Process control, Profitability, Triangulation

Training and Efficiency: A Quantitative Survey of Administrative Officials in Local Self-Government Authorities (Published)

This paper presents the results of a quantitative survey that was conducted on local self-government officials of the municipality of Larissa, with the aim of exploring their views on the contribution of training to their job performance. It also investigated whether these views differ according to the officials’ gender, age and seniority. The research results showed that officials recognise the benefits of training, in terms both of their personal efficiency and of the efficiency of the organisation where they work. These views do not appear to be statistically significantly different, on the basis of predefined variables.

Keywords: Administrative Officials, Effectiveness, Efficiency, Local Self-Government

Joseph Conrad’s Heart of Darkness: Debunking the Two Basic Imperial Clichés (Published)

Joseph Conrad’s in his Heart of Darkness has been condemned as a supporter and defender of the imperialist views and in other situations he is thought to be ambivalent, ambiguous and indecisive concerning this same topic. This paper aims at proving that in Heart of Darkness Conrad employs strategy of introducing the long established imperial clichés to debunk them and to show how fake they are. This strategy is successful and convincing in depicting the cruelties that are caused by the power and authority of imperialism especially if we put this novel within its historical context; a time when imperialism and all of its byproducts were acceptable as practices of the white man’s burden theory

Keywords: Congo, Efficiency, Imperialism, Victorian readers, atrocities, clichés, redeeming idea.

Performance Optimization of a Multistage Centrifugal Pump for Heavy End Recovery Using Desirability Function Approach (Published)

Optimal geometrical (operational)/performanceparameters of a radial split axial pull-out barrel casing multistage centrifugal pump of BB5 class used for heavy end recovery in a natural gas to liquid plant was determined in this study. Impeller discharge diameter,pump suction pipe diameter, impeller blade length, blade discharge angle, impeller discharge widthand radial tip clearance constitutethe factors whose influences on the pumps major flow parameters(efficiency, flow rate, head and speed) were evaluated. The experimental plan applied is completely randomized single replicate Box-Wilson central composite circumscribed block design comprisingthirty-two factorial points, ten centre pointsand twelve axial points while desirability function approach was used in the multi-response optimization of response function of the pump parameters developed. Results revealed 417, 366 70, 39°, 36 and 64  as the optimal pump suction piping diameter, impeller discharge diameter, impeller blade length, blade discharge angle, impeller radial tip clearance and impeller blade discharge widthrespectively. Performance analysis showed that the pump operates with an efficiency, flow rate, head and speed of 78.30, 191.55, 967.50 and 2505 respectivelyat these optimal factors setting and itsenergy consumption reduced by 1.2%.

 

Keywords: Centrifugal pump, Efficiency, Energy consumption, heavy end recovery, natural gas-to-liquid plant, optimal operational parameter

Assessing the Efficiency of Soya Bean Marketing In the Ejura-Sekyedumasi and Nkoranza South Districts of Ghana (Published)

The study aimed at assessing the efficiencies of soya bean marketing channels in the Ejura-Sekyedumasi and Nkoranza South Districts, Ghana. The multi-stage sampling technique was employed in selecting thirty-seven soya bean farmers, two wholesalers, seven retailers, two small-scale processors and one large-scale processor of soya beans for the study. Gross Margin analysis was employed in determining the marketing costs and margins whereas the Shepherd’s Method was used in analyzing the efficiencies of the marketing channels. The study revealed that nine different channels existed through which soya bean was marketed in the study areas, with the simplest channel (Channel 1) being where farmers sell directly to consumers. Analysis of marketing cost and margins revealed that comparatively, Channel 1 had the least cost (GH2.40) and margins (GH10.50) since farmers dealt directly with consumers without any interference from market intermediaries, who usually increase transaction cost. From the study, Channel 1 was the most efficient channel with an Efficiency Index of 37.71. Thus, its marketing cost constituted a smaller proportion of the consumer price. The study recommends that farmers use Channel 1 where they sell directly to consumers to market their produce and also form co-operatives to protect them against price fluctuation and give them assurance of buyers. Moreso, the central government is directed to intervene in the form of road construction and improvement to help reduce the excessive transportation cost associated with the soya bean trade in Ghana

Keywords: Efficiency, Ghana, Marketing, Marketing Channel, Soya Bean

Working Capital Management and Profitability: Evidence from the Cement Industry in Bangladesh (Published)

Cement Industry plays a vital role in the socio-economic development of Bangladesh. Profitability of this industry is highly related with the efficient working capital management, but the profitability of this industry is not satisfactory. This study is designed to show the profitability and working capital position of Cement industries, correlation between them and whether the profitability is affected by Working Capital Management. Ratio Analysis, Correlation Matrix and Regression Analysis have been used to show Profitability. Working Capital position, correlation between them and the impact of Working Capital on Profitability respectively. For the source of data the author mainly relied on Annual Reports and official records. It is observed from the study that profitability and Working Capital Management position of the Cement industry are not satisfactory.The study reveals that correlation exist between Working Capital Management and Profitability. The study also brings to fore that Working Capital Management has a positive impact on Profitability.

Keywords: Cement Industry, Efficiency, Profitability, Working Capital Management

MEASURING THE EFFICIENCY AND EFFECTIVENESS OF THE HUMAN RESOURCES TRAINING FUNCTION AT ORANGE JORDAN (Published)

The objective of this paper is to measure the effectiveness and efficiency of the human resources training function at one of the telecommunication companies in Jordan “Orange Jordan”. The target population for this study is 140 unit managers and their assistants at Orange Jordan. A total of 105 unit managers participated in the completion of questionnaires. Data analysis was done by factor analysis; explanatory and confirmatory data modeling and Cronbach’s alpha-values and practical significance by means of effect sizes. The findings of the study stipulate that the primary function of training department today is to ensure the implementation of the standards of effectiveness and efficiency to accomplish an organization’s goals and objectives. Using Training as a competitive advantage means analyzing the factors necessary for the organization’s long-term success. Areas such as training design, training processes, training policies, effective trainer, training strategies, training goals and objectives are essential to this concept. In order to formulate appropriate competitive advantage through the effectiveness and efficiency of the training function, it is first recommended to analyze the firm’s strategic needs. The training department should create a complete model of training function and a more coherent attempt must be made to improve the level of internal communication between the unit managers and their employees. This would create an environment within Orange Jordan that can promote mutual respect, trust and concern between management and employees.

Keywords: Effectiveness, Efficiency, Induction, Training, confirmatory factor analysis

EFFICIENCY OF AGRICULTURAL LENDING SCHEMES IN NIGERIA (Published)

The broad objective of the study was to evaluate the efficiency of agricultural lending schemes in Nigeria with a view to determining their impact on output and income of beneficiaries. The study was carried out in Benue, Kwara, Kaduna, Abia, Anambra, Rivers, and Ogun states respectively. The method of proportionate random sampling was used in selecting 185 borrowers who are registered with their state Agricultural Development Programmes (ADP’s). The sampling frame comprised all the registered ADP farmers in the surveyed states who took agricultural loan. Data collected were analyzed using frequencies, percentages, means, and multiple linear regression analysis. The results of the study showed that both small and medium scale farmers are efficient in the use of farm inputs, but small scale farmers are technically more efficient than medium scale farmers. Borrowers with secondary or tertiary education were efficient in inputs use, but borrowers with tertiary education were technically more efficient than borrowers with secondary education. The efficient lending schemes in Nigeria are ACGSF and CACS, but ACGSF was technically more efficient than CACS. It was recommended that the government should continue to fund farmers in Nigeria through ACGSF and CACS.

Keywords: Agriculture, Efficiency, Lending Schemes, Nigeria

STUDENTS’ VIEWS ON UTILIZING MT IN TEACHING AND LEARNING: INTEREST, IMPORTANCE AND EFFICIENCY (Published)

With Mobile Technology (MT) getting smaller, cheaper and easier to carry, the new generation has been bombarded with various mobile technology devices that seem to be invading every single aspect of their lives. Educators and learners in higher education institutes need to realize the extent to which undergraduate learners are ready to deploy MT as learning facilitators. Hence, our present study aims to find out the students beliefs and views on the importance of MT in their educational life. In order to fulfill the study’s objectives, 328 undergraduate students were randomly selected across four different departments at the College of Basic Education in Kuwait, during the spring semester of the academic year 2012/2013. The data were collected based on the informants’ responses on 18- itemed questionnaire that was mainly designed to reflect on the students’ views over the main study objectives. As a result, the students’ responses were categorized into three dimensions that should eventually fulfill our study goals; interest in MT devices, efficiency of various MT devices, and the importance of MT application in the students’ education. The study results revealed the students high interested in MT deployment within their education as they motivate them to learn and provide them with wider learning opportunities, especially in the discipline of distance learning. Students have also perceived MT as more efficient. Older students tend to agree less. Efficiency of MT has further been pressed in the discipline of language learning.

Keywords: Efficiency, MALL, Mobile technology, Motivation, digital generation

FACTORS INFLUENCING CONTAINER TERMINALS EFFICIENCY: A CASE STUDY OF MOMBASA ENTRY PORT (Published)

Previous studies carryout revealed that many factors influence container terminal efficiency. This study revealed that factors such as inadequate quay/gantry crane equipment, reducing berth times and delays of container ships, dwell time, container cargo and truck turnaround time, custom clearance, limited storage capacity, poor multi-modal connections to hinterland and infrastructure directly influencing container terminal efficiency. The research document thoroughly explored these factors and discussed the extent to which they influence container terminal efficiency within the port industry. The primary objective of this study was to assess factors influencing Container Terminals Efficiency with a case study of the Mombasa Entry Port. The target population of the study was approximately 500 people which included Kenya Port Authority, Conventional Cargo Operations, and Container Terminal Operations. Questionnaire was the major instrument used to obtain primary data from the respondents; while the secondary data were obtained from existing empirical literature relevant to the study. The study employed an exploratory approach using a descriptive survey design. The questionnaire be designed using Likert scale type. A sample of 50 respondents was obtained through a stratified sampling technique of which 30 of the respondents participated in the survey. Data were analyzed using the Statistical Package for Social Sciences (SPSS) and Microsoft Excel 2013. The findings revealed 86.7% of the respondents believe that by improving the infrastructures at the port of Mombasa will minimize the congestion problems that sometime occur. Findings from the survey revealed that 83.3% of the respondents agree that the lack of Integrated IT system poses substantial delays in custom clearance procedures. The study also recommended that Kenya Port Authority (KPA) continuously invest in modern quay and gantry cranes to supplement the current ones in order to continuously enhance productivity of port operations and that the Government of Kenya invest in expanding the physical infrastructure such as adequate berthing facilities, wharves, yard capacity, quayside, railway, as well as hinterland connections expansion.

Keywords: Container Terminals, Efficiency, Mombasa Entry

REVIEW OF TARIFF FOR PAKISTAN COAL POWER PROJECT (Published)

This paper finds that NEPRA has approved 65% expensive tariff for new coal fired power plants in Pakistan. For the 6,600 MW power plants that will be installed in Punjab province, Pakistani people will pay extra USD 2.2 Billion in a year and USD 66.88 Billion over the next 30 years period of contract. Government should cancel this tariff and manage the tariff on case to case basis by following International Competitive Bidding process and keeping in mind the international standards and industrial prudent practices.

Keywords: Coal Price, Efficiency, Freight for Coal Transportation, NEPRA, Punjab Coal Power Plants, Tariff

IMPACT OF RECORDS KEEPING ON OFFICE MANAGERS’ EFFICIENCY IN NIGERIAN UNIVERSITIES (Published)

The study examined the impact of records keeping on office managers in tertiary institutions in Nigeria. Two research questions and two hypotheses guided the study. A descriptive survey research design was used for the study.The study was carried out in Ebonyi and Enugu States of Nigeria. The entire population comprising of 100 office managers was studied. A four point response item questionnaire was used as the instrument for data collection. Two experts in the department of business education and one expert in educational measurement and evaluation were given the drafted copies of the questionnaire for face and content validity. Cronbach Alpha was used to ascertain the reliability of the instrument. The data collected were analyzed using mean, standard deviation and t-test statistics. The findings of the study showed that records’ keeping is very important for effective planning of the office. Despite the importance of records keeping on office management, it has been constrained by lack of funds, insufficient skills, poor storage, and lack of infrastructure etc. Furthermore, the null hypotheses were accepted. Based on these findings, the researcher recommended that government and school authorities should provide adequate funds and sufficient skills for the effective management of office records, there should be adequate training and retraining of office managers, also there should be adequate infrastructure in the school.

Keywords: Efficiency, Office, Records, Universities

Assessing the Efficiency of Soya Bean Marketing In the Ejura-Sekyedumasi and Nkoranza South Districts of Ghana (Review Completed - Accepted)

The study aimed at assessing the efficiencies of soya bean marketing channels in the Ejura-Sekyedumasi and Nkoranza South Districts, Ghana. The multi-stage sampling technique was employed in selecting thirty-seven soya bean farmers, two wholesalers, seven retailers, two small-scale processors and one large-scale processor of soya beans for the study. Gross Margin analysis was employed in determining the marketing costs and margins whereas the Shepherd’s Method was used in analyzing the efficiencies of the marketing channels. The study revealed that nine different channels existed through which soya bean was marketed in the study areas, with the simplest channel (Channel 1) being where farmers sell directly to consumers. Analysis of marketing cost and margins revealed that comparatively, Channel 1 had the least cost (GH₵2.40) and margins (GH₵10.50) since farmers dealt directly with consumers without any interference from market intermediaries, who usually increase transaction cost. From the study, Channel 1 was the most efficient channel with an Efficiency Index of 37.71. Thus, its marketing cost constituted a smaller proportion of the consumer price. The study recommends that farmers use Channel 1 where they sell directly to consumers to market their produce and also form co-operatives to protect them against price fluctuation and give them assurance of buyers. Moreso, the central government is directed to intervene in the form of road construction and improvement to help reduce the excessive transportation cost associated with the soya bean trade in Ghana

Keywords: Efficiency, Ghana, Marketing, Marketing Channel, Soya Bean

ADMINISTRATIVE EFFICIENCY AS A STRATEGY FOR IMPROVED LOCAL GOVERNMENT EFFECTIVENESS IN BORNO STATE, NIGERIA (Published)

Basically, about 80% of the total populations of Borno State are rural based. One of the major problems facing Borno State Local Governments today is the fact that the vast rural areas need urgent socio-economic development so that the bulk of the population might be kept happy in their abodes. Administrative Efficiency at the local government level will facilitate rural development which will adequately check the influx of the skilled and unskilled manpower from these rural areas to the urban centers. To accomplish this, good local governance through proper execution of rural projects that will provide the rural population with employment opportunities, education, recreation and leisure, security, health and the like are very essential. Therefore, the paper argued that the allegations from the public that local government have not been performing very well in service delivery and being described as centres of sharing money is a problem of administrative efficiency and effectiveness. The paper revealed that the nature of state-local government relations in Borno State in most cases is impacting negatively on local administrative efficiency thereby rendering service delivery ineffective. In practice local government in most states of the federation including Borno State is not recognized as third tier of government but local administration. They operate as an extension of state ministry because they lack autonomy in line with the presidential system of government. The paper therefore, recommended among others that relationship between State-Local Government Relations should be build on mutual cooperation and respect to see themselves as equal partners in progress; and also proper consultation of community members should be encouraged before formulation and execution of community projects

Keywords: Borno State, Effectiveness, Efficiency, Local government Administration, Nigeria

THE GHOST WORKER SYNDROME: A COMPLEX DIMENSSION TO PUBLIC SERVICE CORRUPTION IN KOGI STATE – NORTH CENTRAL NIGERIA. (Review Completed - Accepted)

The public sector constitutes the largest sector of the Nigerian economy. It employs the largest population of the labour force and also controls the bulk of the financial resources of the country. What this implies is that whatever adversely affects the public service has a huge multiplier effect on national development. The ghost can be a real person who knowingly or not is placed on the payroll, or a fictitious person invented by the dishonest employee. Thus, this paper attempts an x-ray the menacing ill of ghost workers, by the adoption of some basic accounting procedures to ensure internal control of public funds. This is because the public sector is the most venerable sector to employee frauds. The research findings show that public sector management in Kogi State has not lived up to expectation especially with regards to human resource management, good internal control system and good accounting  procedure to reduce the act of ghost workers, among others. The study recommends the formulation of good human resource and recruitment policy, attractive pay package and internal control/audit department.

Keywords: Corruption, Effectiveness, Efficiency, Fraud, Ghost, Public Sector

Efficiency of Ratio Estimators under Maximum and Minimum values using Simple Random Sampling Scheme (Review Completed - Accepted)

This paper presents a class of ratio estimators for the estimation of finite population mean under maximum and minimum values and using knowledge of the auxiliary variable. The properties of the proposed estimators in terms of biases and mean square errors are derived up to first order of approximation. Also the performance of the proposed class of estimators are shown theoretically and these theoretically conditions are verified by numerically by taking three natural populations under which the proposed class of estimators performed better than the others competing estimators.

Keywords: Auxiliary variable, Efficiency, Maximum and Minimum values, Mean squared error, Ratio estimators, Simple random sampling, Study variable

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