Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 45 )

2018 ( 74 )

2017 ( 57 )

2016 ( 49 )

Custom range...

Search Results: 1 - 10 of 4423 matches for " Emeka Emmanuel Okoro "
All listed articles are free for downloading (OA Articles)
Page 1 /4423
Display every page Item
Economic Advantage of In-Country Utilization of Nigeria Crude Oil  [PDF]
Emeka Emmanuel Okoro, Adewale Dosunmu, Kevin Igwilo, Paul A. L. Anawe, Angela O. Mamudu
Open Journal of Yangtze Oil and Gas (OJOGas) , 2017, DOI: 10.4236/ojogas.2017.24018
Abstract: Crude oil refining is a unique and important link in the supply chain of petroleum products from the wellhead to the end user. Refining adds value through conversion of crude oil and other flows into dozens of co-refined products. Nigeria is probably the largest importer of refined petroleum products on the continent, creating a lucrative refinery market in Europe and the United States. Subsidies have also contributed to the low capacity utilization in our refineries. The current situation of the four National refineries and high dependency on crude oil proceeds has made Nigeria government a full time exporter of crude oil. Because of our population, the demand for refined products which are imported in foreign currency have induced pressure on our local currency; thus, presenting a large cost to the economy. Instead of looking for international crude oil traders or embarking on discounted sales of our sweet crude in this era of low crude oil price, it will be profitable to utilize this crude oil in Nigeria. We will not only export the raw crude but also enrich our petrochemical industries and agricultural sector with the byproducts or co-products from its refining. Investment in petrochemical industry will really bring about an astounding effect in our economy because of enlargement of private domain which will usher new phase of life by reducing inequalities in the nation’s income. There has never been a doubt about the large size of the Nigerian market for refined crude oil and petrochemical products. As more countries are discovering crude oil, Nigeria’s crude oil export will gradually drop leaving us with excess crude oil instead of excess crude account. There is a need for government to develop industrial sectors that support or leverage its energy resources. The actualization will make it possible for Nigeria to change from raw material supplier to value-added product supplier.
A Review on Gas Well Optimization Using Production Performance Models—A Case Study of Horizontal Well  [PDF]
Kevin C. Igwilo, Emeka Emmanuel Okoro, Anthony Afam Nwude, Angela Onose Mamudu, Charles Y. Onuh
Open Journal of Yangtze Oil and Gas (OJOGas) , 2018, DOI: 10.4236/ojogas.2018.31005
Abstract: This study considered the solution methods to determine optimal production rates and the rates of lift gas to optimize regular operational objectives. The foremost tools used in this research are offered as software platforms. Most of the optimization hitches are solved using derivative-free optimization based on a controlled well Performance Analysis, PERFORM. In line with production optimization goal to maximize ultimate recovery at minimum operating expenditure, pressure losses faced in the flow process are reduced between the wellbore and the separator. Nodal analysis is the solution technique used to enhance the flow rate in order to produce wells, categorize constraints and design corrective solution. A hypothetical case is considered and sensitivity analysis using the IPR Models for horizontal gas wells provides the effect on pressure and liquid drop out. The gas lift method is economically valuable as it produced an optimal economic water cut of 80 percent with 2 - 4 MM scf/day rate of gas injection; thus, 1800 - 2000 STB/day gas was produced.
A New Approach for Solving Boundary Value Problem in Partial Differential Equation Arising in Financial Market  [PDF]
Fadugba Sunday Emmanuel, Emeka Helen Oluyemisi
Applied Mathematics (AM) , 2016, DOI: 10.4236/am.2016.79075
Abstract: In this paper, we present a new approach for solving boundary value problem in partial differential equation arising in financial market by means of the Laplace transform. The result shows that the Laplace transform for the price of the European call option which pays dividend yield reduces to the Black-Scholes-Merton model.
Variations of the proximal attachment of the biceps brachii muscle in a Nigerian population
Emeka AG,Emmanuel ON
International Journal of Anatomical Variations , 2009,
Abstract: Various types of variations have been associated with the proximal attachment of the biceps brachii muscle (BBM). The bulk of the reports, been studies done on Caucasian subjects. This is a case report on the supernumerary and variant heads of the proximal part of BBM in three young male adult Nigerian cadavers. Supernumerary occurrence of the head of BBM noted was that of 3 heads and this occurred unilaterally. Another variation noted in another subject was that of the origin of the short head of biceps brachii (SHB) from the acromion and from the supraglenoid tubercle, which also occurred unilaterally. These findings were compared with other documented reports.
The Prison as an Instrument of Social Reformation and Rehabilitation: A Study of Nigerian Prisons (Medium) Kiri-Kiri, Lagos
Mark Eze,Emeka Emmanuel Okafor
Pakistan Journal of Social Sciences , 2012,
Abstract: Prisons have always been considered as rehabilitative and reformatory centers. However in reality as a result of a number of factors this may not be possible. It may become a breeding ground for future criminals. This is the problem facing every society and Nigerian prisons are not insulated form this problem. Against this backdrop this study attempted to empirically examine the conditions in the Nigerian prisons with Kirikiri (Medium) as a case study. To achieve this sample size of one hundred and fifty prisoners were selected through simple random to participate in the study. Quantitative and qualitative data were collected through the use questionnaire and key informants interview and examine of some documents. Also the analysis of data was through the combination of quantitative and qualitative analysis. The result of the data analysis showed that the respondents varied in socio-demographic characteristics such age, marital status, family class, offence committed, etc. Further the result of the substantive data showed that most of the respondents were on the awaiting trial; most of them considered prison as a place of punishment rather than rehabilitative and reformatory centres. Moreover the result shoes that quite substantial number of respondents said they had witnessed several cases of deaths in the prison and most of them were not learning any trade because the equipment and tools were in states of disrepair. Also the study showed that most of the prisoners belonged to one informal group or the other to protect themselves against other senior prisoners and prison staff considered wicked. Finally it was discovered that most respondents considered the conditions in the prisons to very treble and there has not been any improvement in the facilities in the recent time. On the basis of the finding the study recommended that the issue of prison reformation and rehabilitation must taken seriously under the current political dispensation in order to achieve the objective for which the prisons were established.
Apprenticeship Scheme and Small-Scale Business: A Study of Selected Apprentices and Their Masters in Lagos Metropolis, Nigeria
Emeka Emmanuel Okafor,Akeem Ayofe Akinwale
The Social Sciences , 2013,
Abstract: Considering the prevailing socio-economic situations and increasing unemployment in Nigeria, the demand for apprenticeship scheme and small-scale business would rise. Thus the thrust of this study is apprenticeship scheme and small-scale business in Nigeria using Lagos state as study area. The study was situated within the ambit of Marxist Labour Surplus Theory and Weber s Social Action. A multi-stage method involving stratified and simple random sampling techniques was adopted and data were sourced through questionnaire and in-depth interviews administered to 96 Apprentices and 24 Masters in Badagry and Lagos Island areas of Lagos State. Data were analysed using descriptive statistics. The findings showed that both the Apprentices and their masters varied in terms of their socio-demographic characteristics. Further the findings showed that the amount of capital available to start a business would be a determinant of apprenticeship willingness to create self-employment and that an alternative avenue for employment and income would not be preferred to apprenticeship in a trade that holds economic promise. Moreover, the data showed that the survival of small-scale business in Nigeria would depend on apprenticeship skills and available facilities. Consequently, the study recommended that Nigeria s immediate steps should centre on not only making funds available, accessible and affordable, but also putting the necessary infrastructure on ground and creating an enabling environment for the operation of small-scale businesses.
Reference Group and Workers Job Satisfaction in Selected Factories in Lagos Metropolis, Nigeria
Emeka Emmanuel Okafor,Olaoluwa Thomas Odulaja
The Social Sciences , 2013,
Abstract: This study arose to identify how and where factory workers select their reference groups; ascertain if the reference members of the factory workers induce evaluation responses that probably lead to attitude of job satisfaction or dissatisfaction. Through a multistage sampling technique, two hundred and five (205) factory workers were sampled from selected Glaxosmithkline and Tower Aluminium factories in Lagos/Ogun state, Nigeria. Questionnaire and in-depth interviews were utilized to generate quantitative and qualitative data respectively. Consequently the analysis of data was based on quantitative and qualitative analysis. The finding revealed among other things that the respondents varied in their socio-economic and demographic characteristics such as sex, age, educational attainment, years of working experience, marital status, job position religious background and income. The study showed that respondents chose their reference members from their relatives, friends, colleagues and boss. Also most respondents agreed that referents members had commented about their place of work. On job satisfaction, the study showed that most respondents were satisfied with achievement and recognition but dissatisfied with supervision, company policies and salaries. Hypotheses tested showed that most respondents selected reference group members from non-factory; that the feeling of job satisfaction or dissatisfaction among factory workers was a function of level of comparison with referent members; that most factory workers do not change members of reference group as they progressed in the factory. Anchoring the explanation of the research findings on equity and social action perspectives, the study recommended that that there is need to review human resources policy of the organizations and, in formulating policies towards job satisfaction, the management should always consider the different needs and aspirations of categories of employees. Most importantly, there is an urgent need for management to encourage social researches on the socio-psychological aspects of the factory workers in order to change their attitudes to work and to social pressures.
Study of relationship between time overrun and productivity on construction sites
Ameh, Oko John,Osegbo, Emeka Emmanuel
International Journal of Construction Supply Chain Management , 2011,
Abstract: The history of the construction industry worldwide is full of projects that were completed with significant time and cost overruns. In an attempt to reverse this trend, this study aims at establishing the relationship between time overrun and labour productivity on construction sites in Lagos, Nigeria. 43 technical and management staff of some medium and large construction firms based in Lagos, Nigeria were sampled and administered a questionnaire survey. The questionnaire contained 18 causes of project time overrun and 14 causes of low labour productivity which had been identified from the literature reviewed. With these a relationship between project time overrun and low labour productivity was established. Both descriptive and inferential statistics were used in analyzing the data. Results indicate that inadequate funds for the project, inadequate planning before project takeoff, inadequate tools and equipment and delay in delivery of material top the list of major causes of time overrun while the use of wrong construction methods, inadequate construction materials and inaccurate drawing/specification are the key factors causing low labour productivity on construction sites. Significant negative relationship was found between time overrun and labour productivity in construction sites in Nigeria. The study concludes by recommending that early appointment of project managers could ensure proper management of both the human and material resources that could guarantee improved productivity and ultimately save projects from time overrun.
Multivariate Classification of China`s Regional Energy Consumption Pattern
Enebeli Emmanuel Emeka,Cheng Jinhua,Xu Xiaoping
Journal of Applied Sciences , 2009,
Abstract: The unbalanced mix of energy consumption pattern in China and its environmental consequences have been a controversial topic researched on by many researchers. With an energy consumption structure clearly dominated by coal, the emission of CO2 into the atmosphere becomes inevasible, posing future danger to the environment and the health of its citizenry. Before formulating successful policy reforms that will put in check this danger or proffer an alternative energy source, identification of dense energy consumption regions is paramount. This study looks at regional energy consumption pattern of 30 Chinese regions and further investigates whether there is evidence of distinct groups of regions based on their energy consumption indicators by means of cluster analysis. Ningxia and Qinghai regions were identified as outliers and were excluded from initial consideration. Four-cluster groups were obtained using Ward’s hierarchical clustering method with 7, 13, 4 and 4 cluster members, respectively in each of the clusters. The resulting cluster groups were statistically evaluated against their Gross Regional Products using General Linear Model (GLM) procedure and the result obtained was significant at 5% level of significance. However, further analysis shows that Ningxia and Qinghai regions could be considered under cluster 4 for policy formulation and implementation purposes.
Sorption Kinetics and Intra Particulate Diffusivity of Crude Oil on Kenaf (Hibiscus cannabinus L.) Plant Parts
I.A. Okoro,D.E. Okwu,U.S. Emeka
Journal of Engineering and Applied Sciences , 2012,
Abstract: The Kinetics of sorption and intarparticute diffusivity of crude oil using kenaf (Hibiscus cannabinus L.) plant parts was studied. The amount of crude oil adsorbed increased with time. The amount of crude oil adsorbed were 11. 86, 9.92, 7.54 and 7.10 mg mL 1 for the roots and stems respectively. The fractional attainment of equilibrium, values showed that the stem parts research equilibrium point before the root parts. This study has showed that the sorption of crude oil on kenaf (Hibiscus cannabinus L.) plant parts is particle diffusion controlled. The rate coefficient for particle diffusion were 0.015 and 0.007 mm-1 for the root parts and stem parts, respectively.
Page 1 /4423
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.