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Traffic Regulation at Critical Intersections: A Case Study of Odole Intersection, Akure, Ondo State, Nigeria  [PDF]
Olumuyiwa Samson Aderinola, David Oladotun Owolabi
Open Journal of Civil Engineering (OJCE) , 2016, DOI: 10.4236/ojce.2016.62009
Abstract: Traffic congestion on major roads consequent upon existing bottlenecks at intersections is a major problem in Akure Metropolis. To change this trend, this research was carried out in order to design effective traffic control mechanisms at the “troubled spots” in the metropolis. Odole intersection was identified as one of the critical intersections during a reconnaissance survey and as such, selected for study. Data on geometric features were collected using Oedometer and Google Earth software. Peak and off-peak traffic volume data were collected between 7:30 and 8:30 am and between 12.00 noon and 1.00 pm respectively every other day using Cine camera. Furthermore, discharge headway and delay data were collected using stop watch. The geometric and traffic data collected were analysed using Microsoft Excel. An appraisal of Odole Intersection indicated that the major contributors to traffic are Motorcycles (70.88%) and Passenger Cars (28.72%). Other modes of transportation account for about 0.4% of vehicles traversing the intersection. The critical traffic volume at the intersection was over 4000 veh/hr and the average delay was 22 seconds. An Average delay of 22 seconds at the intersection was an indication that the operating level of service was C (i.e. fairly stable traffic condition with average delays attributable to traffic control by personnel). By juxtaposing the results of geometric and traffic data analyses with the pros and cons of various traffic control mechanisms, traffic control by signalisation was selected and designed to suit Odole intersection. In tandem with the results of this research, appropriate measures have been recommended to ameliorate traffic and commuting problems in the metropolis.
Geotechnical Appraisal of Ile-Oluji Federal Polytechnic Using Geographical Information System (GIS)  [PDF]
Olumuyiwa Samson Aderinola, Ajibola Ibrahim Quadri
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104972
Abstract:
The use of Geographic Information System has been a good solution for database management due to the fact that Geographical information system has the ability to store, manipulate, analyze and display graphical in-formation that has been referenced to a location on the earth. With the aid of Geographic Information System, the research was able to produce a map showing the AASHTO soil classification system, plastic limit, shrinkage limit plasticity index, percentage fine, percentage sand, percentage gravel, specific gravity, optimum moisture content, elevation and maximum dry density on a thematic map of Federal Polytechnic, Ile-Oluji campus which could be of assistance during the infrastructural development of the institution and also help in producing information which could be of help in the engineering decisions of the institution.
Computer Aided Design of Couplings
Adeyeri Michael Kanisuru, Adeyemi Michael Bolaji , Ajayi Olumuyiwa Bamidele, Abadariki Samson Olaniran
International Journal of Engineering , 2011,
Abstract: The research work explores computer-aided approach to the design of ten different couplings, viza viz: flange, solid rigid, hollow rigid, old ham/ cross-sliding, pin type flexible, sleeve, seller cone/compression, split muff, pulley flange and fairbian’s lap-box couplings. The approach utilizesstandard design equations of these couplings and link them together in computer software todetermine the design parameters of the couplings. The work reviews the procedural stepsinvolved in the design of couplings and the development of the software package using java as atool for the design and dratfting of couplings. The design software named COUPLINGCADcombines with sketch template of a single process so as to generate the required parameters ofthe couplings. The COUPLINGCAD was tested with a number of case studies and the resultsobtained therein were quite satisfactory.
Relationship between Insurance and Economic Growth in Sub-Saharan African: A Panel Data Analysis  [PDF]
Taiwo Akinlo, Olumuyiwa Tolulope Apanisile
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.52014
Abstract:

This study examined the relationship between insurance and economic growth in sub-Saharan Africa over the period 1986-2011. Pooled OLS, Fixed Effect Model and Generalized Method of Moment Panel Model were employed in the estimation. The estimations of the dynamic panel-data results show that insurance has positive and significance impact on economic growth in sub-Saharan Africa. This shows that premium contributes to economic growth in sub-Saharan Africa which means that a well-developed insurance sector is necessary for the economic development, as it provides long-term investments for economic growth and simultaneously strengthening risk-taking abilities. The results also show that human capita has positive significant impact on economic growth. Openness and interest rate have negative and statistical significant on economic growth.

Biopharmaceutical Assessment of Active Components of Deadaleopsis confragosa and Ganoderma lucidum  [PDF]
Soji Fakoya, Kehinde Tope Adegbehingbe, Aderinola Adedamola Ogundiimu
Open Journal of Medical Microbiology (OJMM) , 2013, DOI: 10.4236/ojmm.2013.32020
Abstract: The spread of multidrug-resistant strains of bacteria makes it necessary to discover new classes of antibacterial and compounds that inhibit these resistant mechanisms. Hence, this study investigated the antimicrobial activities of Ganoderma lucidum and Deadaleopsis confragosa extracts against some bacterial isolates of medical importance. Using agar well diffusion assay, aqueous, ethanolic and petroleum ether extracts were obtained from Ganoderma lucidum and Daedaleopsis confragosa and assayed for antimicrobial on five bacterial species, viz: Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Proteus mirabilis and Klebsiella pneumoniae. In vitro bioassay revealed that the aqueous extract of G. lucidum inhibited P. aeruginosa S. aureus, E. coli and K. Pneumoniae with inhibition zones of 11.0 ± 0.02 mm, 10.0 ± 0.02 mm, 13.0 ± 0.03 mm and 14.0 ± 0.0 mm respectively. The ethanolic extract of G. lucidum also inhibited P. aeruginosa, S. aureus and E. coli with inhibition zones 12.0 ± 0.01 mm, 11.0 ± 0.02 mm and 16.0 ± 0.01 mm. Petroleum ether extract of G. lucidum inhibited P. aeruginosa, S. aureus and E. coli with inhibition zones of 12.0 ± 0.01 mm, 11.0 ± 0.03 mm and 12.0 ± 0.02 mm. For Daedaleopsis confragosa, the aqeous extract inhibited P. aeruginosa
Mixed convection heat transfer in rotating vertical elliptic ducts
Lasode, Olumuyiwa A.;
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2007, DOI: 10.1590/S1678-58782007000200003
Abstract: this paper presents an investigation into the solution of laminar mixed convective heat transfer in vertical elliptic ducts containing an upward flowing fluid rotating about a parallel axis. the coupled system of normalized conservation equations are solved using a power series expansion in ascending powers of rotational rayleigh number, rat - a measure of the rate of heating and rotation as the perturbation parameter. the results show the influence of rotational rayleigh number, rat and modified reynolds number, rem on the temperature and axial velocity fields. the effect of prandtl number, pr, in the range 1 to 5, and eccentricity, e on the peripheral local nusselt number are also reported. the mean nusselt number is observed to be highest at duct eccentricity, e=0 for a given prandtl number. however, results indicate insensitivity of peripheral local nusselt number to prandtl number at eccentricity, e=0.866, which is an important result to a designer of rotating vertical heat exchanger. the effect of eccentricity on the friction coefficient is also presented. the parameter space for the overall validity of the results presented is rat rempr<820.
Predicting Urban Health Status-An Empirical Modeling Approach from Cities in South West Nigeria
Akinbamijo Olumuyiwa Bayo
The Social Sciences , 2013,
Abstract: This study discusses contemporary environmental health issues with the aid of empirical models for three residential zones in Akure, South west of Nigeria. The study begins with a general introduction to urban environment/health relationships. Thereafter, it goes on to discuss the attributes of the study area. For its methodology, the study made use of hierarchical sampling procedure to select household heads across residential districts of Akure town for a socio economic survey. The responses were collated while dummy variables germane to urban health relationships in the residential zones were fed into three models prescribed for the analysis. The models returned robust goodness of fit values of 0.844, 0.902 and 0.711, respectively. The implications of the performance of the variables were discussed. The study noted among other findings that wastewater management, age of buildings, domestic water supply, management of gaseous wastes in buildings and mode of feacal waste management are critical issues in the study area. Appropriate policy recommendations were proffered in the study.
City Planning, City Growth and Food Security: The Inevitable Trinity in The Nigerian Food Equation
Akinbamijo Olumuyiwa Bayo
Agricultural Journal , 2013,
Abstract: In Nigeria, the rising urban population is a reality that need be acknowledged as it presents multidimensional challenges for every aspect of life and especially the food situation and security. There is the un-abating land use change resulting in the shrinkage of land for urban and peri-urban agriculture. Owing to increasing population and land use change, per capital food supply is on the decline. Despite the fact that length of fallow period keeps reducing or is virtually non-existent, the proportion of the urban poor is on the increase and impulsively, peri-urban agriculture and urban agriculture have emerged and are intensifying expectedly. This will assume greater importance in the years ahead. Using elaborate literature search, this study presents a scenario of urban land use and land use change as affected by land tenure systems, land values, urban population dynamics and urban areas as vast nutrient sinks. All these imply fertilizer imports and nutrient recycling if food supplies from urban and peri-urban agriculture (UA and PUA) are to be sustained. The implications of population characteristics are discussed as it affects food security. The nature of PUA is examined to know its contributions to the urban food equation. The promises and threats of PUA as safety valves in the food equation are alluded to in the study. The concluding discussions dwell on a number of issues. These include policy goals and implications for PUA, with regards to population equilibrium, food and job security, poverty alleviation, gender sensitive support for women and the full utilization of sound land management principles. These are with the view of obtaining optimum yield from this inevitable trinity.
The Yoruba Culture Of aso Ebi (group Uniform) In Socio-ethical Context
Dr. Olumuyiwa Olusesan Familusi
Lumina , 2010,
Abstract:
A decision support tool for basin irrigation in northern Nigeria
Olumuyiwa S. Asaolu
Maejo International Journal of Science and Technology , 2009,
Abstract: Inadequate rainfall, water resources scarcity and attendant food security-related problems have made irrigation technology a necessity. This work presents the development of a decision support system for solving surface irrigation design problems in northern Nigeria. The arid northern states affected by desert encroachment constitute a good candidate and their climatological data was obtained from the Nigerian Metrological Agency. The interactive system was defined in terms of inputs and outputs. The inputs were properties of soil, surface irrigation method and climate. The outputs were mainly the quantity of water application, scheduling pattern, possible design configuration, advance time, cut-off time, application rate, and water use efficiency. The FAO Penman-Monteith equation was used to estimate evapotranspiration values of major crops grown in Nigeria. Mathematical models outlined by Walker and Skogerboe were adapted, and heuristics applied in determining the best configuration that achieves optimum water application efficiency. We encoded the knowledge base using Matlab software. The application was successfully used for the modification of a farm irrigation scheme in Kaduna state. This indicates that the adoption of new technologies for irrigation design issues could enhance agricultural productivity in northern Nigeria.
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