EUSpace
Not a member yet
791 research outputs found
Sort by
Sub-Saharan Africa ICTs Infrastructure for Inclusive Growth in the World of Big Data: Towards Addressing the Global Information Technology Report 2014-2015 on the Networked Readiness Index
Get PDFIn this paper we specifically address a number of the recommendations suggested by The Global Information
Technology Report 2014 & 2015 (GITR 2014 & GITR 2015) with respect to Sub-Saharan Africa countries slow
progress in developing its ICT infrastructure within the current world of Big Data and ICT for inclusive growth; warning that if care is not taking in terms of improving the framework condition for innovation and entrepreneurship there could be a digital divide between the developed and developing economies. In addressing this possible digital divide, we proffered a solution through a model we developed recently at Elizade University for auditing ICT infrastructure projects in a developing economy. We isolated and fully analyzed the Sub-Saharan Africa data from the GITR 2014 report, and present our model in this paper. We argue that the model will address the specific shortcomings of the region in terms of strengthening its ICT infrastructure, and will improve the framework for innovation and entrepreneurship
Software Selection and Deployment for Library Cooperation and Resource Sharing Among Academic Libraries in South-West Nigeria
Get PDFThis study assessed software selection and seployment sractices for library cooperation and resource sharing among aacademic libraries in South-West Nigeria. The purposive sampling technique was adopted and data collection instruments were questionnaire and interview. All of the 39 universities in the South- West zone were chosen and copies of questionnaire were administered to a representative of each academic library. 37 questionnaires were received. The descriptive statistical method of analysis was used. It was discovered that there is no form of cooperation and resource sharing among the academic libraries presently. The study recommends that National Universities Commission (NUC) should make automation a requirement for all academic libraries in Nigeria and recommend particular software(s) for cooperation and resource sharing to be possible among academic libraries among other
Government Expenditure and Its Implication for Economic Growth: Evidence from Nigeria
Get PDFGovernment Expenditure is an important macroeconomic objective in an economy. In this study, the structure
and size of government expenditure determine the pattern of growth in the economy. The Keynesian aggregate
expenditure is adopted as a framework to explain the role of government spending on output. The Johansen
cointegration test was applied to verify the long run relationship between the variables and the Granger causality
test was employed to determine the existence and direction of causation between government expenditure and
economic growth. The autoregressive distributed lag (ARDL) methodology was employed to examine the
relationship between the independent variables and the dependent variable. From the analysis and findings,
government spending significantly and positively explained the economic growth of the country. The
relationship was significant at 5 percent level. In comparing the results of the total government expenditure with
capital and recurrent expenditure, the result shows that they are positively related to economic growth however
the recurrent component of the expenditure significantly explained more. Therefore, it is recommended that the
government should give more priority to the capital component that is more productive and can induce rapid
economic prosperit
Plant Layout under Discounted Sequential Machinery Investment using Dynamic Programming Approach
No full textDynamic programming is employed in this study to develop a model that helps entrepreneurs to
populate pre-planned plant layout using discounted sequential machinery investment method. The approach
enables the use of little initial capital to sequentially invest in the most important machinery/machineries and
factory and office space(s) as well as to provide sufficient working capital required by the industry to keep the
plant working optimally per period. In addition, it takes into consideration the time value of money that may
arise from inflation on the economy during the sequential investment period using discounting method. Using
the developed model and a set of decision rules that was setup, total earnings obtained from previous periods
are subsequently re-invested each period, while ensuring adequate working capital, until all the planned
machines and factory and office buildings have been fully put in place. The model developed was implemented
through a software named DYNAPLANT2015 which was developed using C# programming language to
facilitate the solution procedure. An appropriate case study was used to evaluate the model and observe
possible difference between the undiscounted and discounted sequential machinery investmen
Adaptive neuro-fuzzy control of wet scrubbing process
Get PDFThenon-linear characteristics of wet scrubbing process have led to the application of intelligent control technique to adequately deal with these complexities by manipulating the liquid droplet size for the effective control of particulate matter (PM) contaminants. This includes the use of adaptive neuro-fuzzy inference system (ANFIS) to design an intelligent controller based on direct inverse model control strategy using default input and output membership functions (gaussmf and linear) and different number of input membership functions. This is followed by training of the fuzzy inference system to obtain inverse model which was tested as the intelligent controller. The controller developed using two-input membership functions have successfully achieved the main target of setting the PM concentration (process output) below the set point which is the allowable World health organization (WHO) emission level for 20g/μm within a short settling time of 2s. © 2015 IEEE
Introducing a model to improve recent Sub Saharan Africa networked readiness index
Get PDFIn this paper we specifically address a number of recent recommendations suggested by The Global Information Technology Reports 2013 - 2015 with respect to Sub-Saharan Africa countries slow progress in developing its ICT infrastructure within the current world of Big Data and ICT for inclusive growth; warning that if care is not taking in terms of improving the framework condition for innovation and entrepreneurship there could be a digital divide between the developed and developing economies. In addressing this possible digital divide, we proffered a solution through a model we developed recently at Elizade University for auditing ICT infrastructure projects in a developing economy. We isolated and fully analyzed the sub-Saharan Africa data from the two reports and present our model in this paper. We argue that the model will address the specific shortcomings of the region in terms of strengthening its ICT infrastructure, and will improve the framework for
innovation and entrepreneurshi
Induction of Souring and Corrosion by Anaerobic Microbial Activities in Offshore and Nearshore Oil-Producing Facilities in Nigeria
Get PDFAnaerobic microbiological activities of two oil-producing facilities were determined by monitoring
microbial activities in CSB-K medium and MPN counts of SRB in API RP-38 broth medium and APB
in ZPRA-5 broth medium. Corrosion measurements were also carried out by weight loss method. Our
investigation revealed that microbial activities at the near-shore facility were dominated by both sulfate
reduction and methanogenesis with potential for souring and corrosion, while that of offshore was
dominated by sulfate reduction, but the potential for souring and corrosion were reduced by frequent
application of a combination of biocides by the operators
Investigation of the influence of network‐induced time delays on the activated sludge process behavior in the networked wastewater distributed systems
Get PDFThis paper examines the effects of networked induced time delays on the dissolved oxygen (DO) concentration in the activated sludge process (ASP) of a networked wastewater treatment plant (WWTP). This is a situation in which the controller and the wastewater plant are separated by wide geographical distance. This is a new type of WWTP control that allows two or more WWTPs to be controlled by a single controller placed in a remote location. The objective is to achieve flexibility of control and to reduce its cost. The communication medium between the controller and the WWTPs introduces communication drawbacks into the control system. The influences of network‐induced time delays [controller to actuator delay (τca) and the sensor to controller delay (τsc)] over the behavior of the DO process controlled by both nonlinear linearizing and proportional‐integral controllers are investigated for constant and random delays. Investigation of the DO process under random delays was also performed with varying linear controller parameters [proportional gain (Kp) and integral time (TI)]. Simulation results reveal that large network‐induced time delays in the closed‐loop DO process leads to depletion of the amount of oxygen available for microorganism metabolism, leading to inefficiency of the ASP. The critical delay during which the DO process becomes unstable due to communication drawbacks was also determined for constant and random delays. These values are found to vary depending on the delay type (constant/random), delay magnitude, and the linear controller parameters Kp and TI. The results of this study would provide useful information for process performance and form the basis for the design of a robust networked control for the DO process capable of mitigating communication drawbacks in a networked wastewater distributed systems. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc
Weibull approach to brake pad wear analysis in the Nigerian market
Get PDFIn this study, we evaluated the wear properties of four brands of brake pad available in the Nigerian
market. In particular, we assessed the tribo performance and service life of the brake pads. We purchased four
commercial brands of brake pads used in light duty cars and coded them as AU, SN, TY and SM, respectively.
A small piece of the brake pad lining materials was carefully chiseled from the back plates to obtain samples for
the experiments. We conducted Brinell hardness tests using a tensometer and a pin-on-disc test rig to determine the coefficient of friction and the wear characteristics of the materials. We then correlated the wear on each set of brake pads with the running time and used Weibull’s equation to determine average service life. Sample TY exhibited the highest hardness value (29.09) and sample SN the lowest (10.05). The determined coefficients of friction ranged between 0.3–0.36, with sample AU exhibiting the lowest value and sample SM the highest. Sample SN showed the lowest wear rate of 3.53 × 109 g/min, while the wear rates of samples TY, AU, and SM were 5.64 × 108, 8.19 × 109, and 2.10 × 108 g/min, respectively. The relative service life of samples SN, TY, and AU were similar, with average values of 2778.09, 2725.41, and 2717.34 min, respectively, and SM had a relatively low service life (2017.82 min). We conclude that the overall performances of Nigerian brake pads do not meet all the specifications for friction materials used in road vehicle brake linings and pads
Banking sector reforms and output growth of manufacturing sector in Nigeria (1970-2011)
Get PDFThe study investigated empirically the effect of banking sector reforms on the output of manufacturing
sector in the Nigerian economy between 1970 and 2011 with a view to examining the extent of the
impact of banking sector reforms on the manufacturing sector. The study employed annual secondary
time series data from 1970-2011, sourced from the Central Bank of Nigeria’s statistical bulletin and
annual report and statement of accounts, National Bureau of Statistics final accounts and IMF
International Financial Statistics (IFS) using the methodology of Cointegration analysis and Error
Correction Mechanism (ECM). The empirical results showed that the effects of Bank assets, Lending
rate, Exchange rate and real rate of interest on manufacturing output were positively significant but
with very low impact. On the other hand, the financial deepening and interest rate spread negatively and
significantly impacted on the output growth of manufacturing sector in Nigeria. Overall, the conclusion
that emerged from the findings suggests that the effects of banking sector reforms on the output
growth of manufacturing sector were significantly low in the Nigerian economy. However, the findings
indicated that the impacts of the various banking reforms could vary widely on the economy depending
on the time lags involved. Consequently, the policymakers must be prepared to initiate proper countercyclical banking reforms that will serve as buffer measures to lessen or abort the negative impacts of
any banking reforms on the manufacturing output growth. Thus a flexible accommodating banking
reform regime is advocated for Nigeria