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Search Results: 1 - 10 of 178 matches for " Adewale Dosunmu "
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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.
Credit Rating Modelled with Reflected Stochastic Differential Equations  [PDF]
Adeyemi Adewale Sonubi
Journal of Mathematical Finance (JMF) , 2014, DOI: 10.4236/jmf.2014.45031
Abstract: This research paper is focused on the modelling of credit rating, using reduced form approach, in which intensity is defined endogenously based on the firm’s cashflow. It was modelled with reflected stochastic differential equation; this was adopted to evaluate the credit rating of a firm where the reflection function Ø(t) (i.e. Brownian local time) was used to detect default and measure time spent at default. Through this, the credit rating is estimated within [0,1]; where “0” is the state of default and “1” is interpreted as undefaultable within a time interval t≥[0, ∞) under consideration.
Performance in the Construction Industry— A Conceptual and Theoretical Analysis  [PDF]
George Hove, Adewale Banjo
Open Journal of Business and Management (OJBM) , 2015, DOI: 10.4236/ojbm.2015.32017
Abstract: Small businesses growth and profitability is a national problem in South Africa (SA) and the Emerging Contractors (ECs) in the construction industry are no exception. ECs are alleged to fail to live up to the expectations of different stakeholders. This paper looks back at the level of understanding of the performance construct especially the ECs and their stakeholders in South Africa. It establishes that there are no unique characteristics that have been translated into the performance construct and contributed by defining performance for ECs in the construction in the context of today’s South African changing environment.
Socio - Economic Implication of Use of Gsm among Abeokuta Metropolis, Ogun State, Nigeria
Akinola George Dosunmu
Canadian Social Science , 2011, DOI: 10.3968/j.css.1923669720110703.025
Abstract: The euphoria that greeted the use of Global System of Mobile Telecommunication (GSM) has reached its peak with grave implication for socio-economic conditions of many Nigerians same of who have been complaining about exploitation and unsatisfactory services provided by Global System of Mobile Telecommunication (GSM) operation in the country. However, many Nigerians even with high cost of Global System of Mobile Telecommunication (GSM) phone will not stop at anything as holding a Global System of Mobile Telecommunication (GSM) phone has become a status symbol. Thus, the paper examines the socio-economic implications of the use of Global System of Mobile Telecommunication (GSM) among residents in Abeokuta, Nigeria. The result reveal that despite the problems associated with the use of Global System of Mobile Telecommunication (GSM) no one can do without it because it is highly useful for economic motives. Consequently unpas the findings it is recommended that government should checkmate exorbitant changes of Global System of Mobile Telecommunication (GSM) operators. Key words: Telecommunication; Economic; Mobile; Technology Résumé: L'euphorie qui a salué l'utilisation du Système global de télécommunications mobiles (SGM) a atteint son apogée avec les implications en profondeur pour les conditions socio-économiques de nombreux Nigériens, les même que ceux qui se plaignaient de l'exploitation et des services insatisfaisants fournis par le Système global de télécommunications mobiles (SGM ) dans le pays. Toutefois, beaucoup de Nigérians, même avec un co t élevé de téléphone du Système global de télécommunications mobiles (SGM), n'abandonneront pas les services du Système global des télécommunications mobiles (SGM), car celui-ci est devenu un symbole de statut social. Ainsi, le document examine les implications socio-économiques de l'utilisation du Système global de télécommunications mobiles (SGM) chez les résidents d'Abeokuta, au Nigéria. Le résultat révèle que, malgré les problèmes liés à l'utilisation du Système global de télécommunications mobiles (SGM), personne ne peut s'en passer parce qu'il est très utile pour des motifs économiques. Par conséquence, il est recommandé que le gouvernement devrait éviter des changements exorbitants du Système global de télécommunications mobiles (SGM). Mots-clés: Telecommunications; économique; Mobile; Technologie
Physical Growth Pattern of Settlements in a Traditional Region, Southwest Nigeria  [PDF]
Adewale Mukhtar Olayiwola, Olayinka Akinsumbo Ajala, Johnson Adewale Sangodipe
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.511110
Abstract: The study examined the growth pattern of settlements in Oke-Ogun area of Oyo State, Nigeria between 1984 and 2011; and predicted the future growth pattern of settlements in the study area. Both primary and secondary data were used for this study. Primary sources of data include Global Positioning System (GPS), Landsat TM and ETM+ imageries of 1984, 1990, 2000, and 2011. Secondary data included administrative map and population data of the study area. Descriptive statistics and geospatial technique were used to analyse the data collected. The results showed a random pattern of settlement distribution in the study area. Results revealed that settlements covered about 0.52% of the total land area in 1984; 1.32% in 2000; and 3.78% in 2011. Whereas linear pattern of growth characterised the periods between 1984 and 1990; clustering, infilling, and fringes were the patterns of growth that characterised the periods between 1990 and 2011. The study predicted that, at an average 1.2% of annual growth rate, settlements will occupy about 44.37% of the total land area by 2031. The study concluded that settlements in the study area varied in the patterns of distribution; the area was dominated by indigenous settlements type with overconcentration of social and economic infrastructures in few centres.
Palaeoclimatic Evidences from the Quaternary Coastal Deposits, Southwestern, Nigeria  [PDF]
Olugbenga A. Boboye, Adewale Akinmosin
Open Journal of Geology (OJG) , 2018, DOI: 10.4236/ojg.2018.86034
Abstract: The studies on some samples retrieved from the coastal sediment deposit have been carried out. The palynological and geochemical indices were evaluated with the view of determining their chronology, palaeoclimatic conditions that prevailed during the time of their emplacement and also to re-asses the palaeoenvironment of the Lagos coastal deposit in Dahomey Basin. The identification of diagnostic species age entails the palynological analysis while the geochemical analysis determines the provenance of these Quaternary sediments. The occurrences of Laevigatosporites sp., Zonocostites ramonae, Acrostichum aureum in abundance along with few long ranging forms suggest that the vegetation development was under a humid climate and that the sediments were deposited during cooler and wetter conditions. The presence and high abundance of Crassoretitriletes vanraadshooveni, Zonocostites ramonae, Canthiumidites sp., Sapotaceoidaepollenites sp. and Pachydermitesdiederixi palynomorphs indicate an age range of late Pliocene (Gelasian) to early Pleistocene (Calabrian) (2.588 - 1.806 Ma). This age range is known to correspond to the 3.7 - 3.8 depositional cycles of relative change of coastal On-lap. The geochemical appraisal showed that the ratios of organic carbon-nitrogen (C/N) indicate that the sediments were sourced from aquatic, protein-rich and cellulose-poor milieu. The wetter climatic period has enhanced algae productivity as a consequence of greater wash-in of soil nutrients, and these periods are recorded as increased rate of organic carbon mass accumulation. Conversely, the dominance of a mangrove habitat, Zonocostites ramonae suggests a mangrove swamp environment which was the most prevalent environment of the Lagos lagoon in the Pleistocene.
An Analysis of Appropriateness of Improved Rice Technology for Women Farmers in Selected States of South Western Nigeria
JG Adewale
International Journal of Applied Agriculture and Apiculture Research , 2007,
Abstract: The study was carried out in selected states of South Western Nigeria in order to investigate the appropriateness of improved rice technology for women farmers. A purposive sampling technique was used to select 320 women farmers from the study area. Data collection was carried out using structured interview schedule. Frequencies, percentages and means were used to describe the data, while analysis of variance Pearson correlation and regression analysis were employed in order to make inferences from the data. The study revealed that majority (54.1 %) of the respondents were below 40 years of age, married (73.1%) and had less than 6 years of formal schooling (61.3%). The major income activities of the women were farming (crops and livestock). The women farmers were small holders as about 74.0% of them cultivated less than one hectare of land with rice. The predominant rice varieties in the study area were upland rice (ITA 128 and ITA 150). The analysis shows that significant relationship exists, though negative, between the women farmers' ages, income generating activities and levels of appropriateness of improved rice technology to them. It is therefore recommended among others that women should be involved in the development process of improved rice production technology to ensure appropriateness of the technology and its adoption.
A Review of Parliament-Foreign Policy Nexus in South Africa and Namibia
Adewale Banjo
Journal of Politics and Law , 2009, DOI: 10.5539/jpl.v2n3p61
Abstract: After a review of selected literature on foreign policy and parliament-foreign policy nexus in South Africa, this article examines the nature of ‘Parliamentary diplomacy’, with special focus on Parliamentary Committees on Foreign Affairs [PCFA] in South Africa and Namibia since 2000. By means of descriptive approach and content-analysis of documentary sources and conversational interviews, it further explores the extent of executive-legislative frictions over foreign affairs in both countries and the raison deter for parliamentary interest in foreign affairs, which is located within the orbit of National Interest. It argues that the executive-legislature friction over foreign policies may not be resolved sooner, more so that there are other actors seeking to influence the direction of foreign policy in both countries.
Modeling and Simulation of the Autocatalytic Kinetics of Haemoglobin SS Polymerization: Onset of Polymerization  [PDF]
Edith Egbimhanhu Alagbe, Alfred Akpoveta Susu, Adedoyin Owolabi Dosunmu
Journal of Biosciences and Medicines (JBM) , 2016, DOI: 10.4236/jbm.2016.43004
Abstract:

We report a fresh and simpler approach to the modelling of the kinetics of the polymerization of Hb SS in sickle cell patients that couples the kinetics and the hydrodynamics of blood flow in mechanistic understanding of the process. The well-known two-step autocatalytic reaction scheme was used for the polymerization reaction with the assumption of simpler first-order reaction scheme for each stage. In addition, the forces acting on a particle in motion were also introduced to account for compelling settling of the red cells that lead to vessel occlusion (vaso-occlusion). A first attempt on the prediction of vessel blockage was made using this novel model. The time for the onset of the polymerization reaction was derived from hydrodynamic considerations and kinetics while the kinetic rate constants were obtained from the autocatalytic nature of the reaction. Experimental data for model validation were obtained from recruited SS patients and in vitro data of Hofrichter. Over 100 volunteers were recruited for participation in this work but less than 40% met the inclusion criteria. Participants were of age range 13 - 43 (with a mean of 26 ± 8 years) for SCD patients and 18 - 43 (with a mean of 28 ± 7 years) for control participants. Blood indices and Transcranial Doppler (TCD) test parameters of all participants were the principal parameters used for model validation. Constant k2/k1 ratios was obtained for individual in vivo/in vitro system. This ratio is unique for any individual, independent on protein sequence and also suggests the degree of expression of the symptoms of Sickle Cell Disease (SCD) with higher values reflecting greater propensity to pain crisis. Delay time, tD, was found to have an inverse relationship with the kinetic constant for the residual reaction, k1. Therefore, long delay times calculated, offer insight on why SCD patients are not in perpetual crises because enough time is provided the cells to escape microcirculation while keeping the residual reaction at the minimum. Sensitivity analysis was carried out to obviate the limitations encountered in the course of the work. Results showed the onset of occlusion to be most sensitive to the diameter of the blood vessel.

Sulphide and carbon (IV) oxide corrosion in oil exploration and exploitation operations
A Dosunmu, K C Echendu
Journal of Applied Sciences and Environmental Management , 2002,
Abstract: This is an attempt to determine the susceptibility of carbon IV oxide (CO2) and Hydrogen Sulphide (H2S) corrosion of three different materials, namely; Type (316) Austenite Stainless Steel, Mild Steel and Conventional drill-pipe in sour environment -(H2S/mud medium and CO2/mud medium). The weight loss method was used. Results of the experiment showed that mild steel material was the most susceptible material to corrosion in the environment while Type (316) Stainless Steel material exhibited the best performance of all the materials. The result of this study can be used in the design of crude/product flow lines in the refining and producing operations. (Journal of Applied Sciences & Environmental Management: 2002 6(2): 85-88)
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