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Idi Iroko, Nigeria

Bells University of Technology is the first private university of technology established in Nigeria. It was established in 2004, and began admitting students from the 2005/2006 academic session. Wikipedia.


Betiku E.,Obafemi Awolowo University | Alade O.S.,Bells University of Technology
Energy Sources, Part A: Recovery, Utilization and Environmental Effects | Year: 2014

Nine different media containing three different nitrogen sources, concentration of carbon source (cassava starch hydrolysate), and the pH were run in shake flasks to produce bioethanol using Saccharomyces cerevisiae. Analysis of variance of the results from the shake flask showed that there was no significant difference (P > 0.05) in the maximum concentration of ethanol (Pt) produced from the media. From the bioreactor studies, similar kinetic parameters, including Pt of 48.16 g/L with theoretical yield (Yetoh) of 92% and Pt of 47.13 g/L with Yetoh of 92%, were recorded from 100 g/L carbon source in the complex and minimal media, respectively. ©Taylor & Francis. Source


Adelekan A.O.,Bells University of Technology | Oyewole O.B.,Abeokuta Federal University of Agriculture
African Journal of Biotechnology | Year: 2010

Three varieties of sorghum grains were germinated before fermentation to Ogi. The protein and ash contents of Sorghum vulgare, Sorghum guineensis and Sorghum bicolor increased by 7.20 and 40.20%; 5.44 and 29.20%; and 4.00 and 42.18% respectively. Fermentation of the germinated grains however caused decreases in the protein, ash, fibre and fat contents. Supplementation of oven-dried (60%) powder with treated 30% (w/w) soyabeans flour yielded products of higher protein contents which ranges from 284% for Ogi made from S. vulgare, 270% for Ogi made from S. guineensis and 271% for Ogi made from S. bicolor. Similarly, supplementation of Ogi with 30% (w/w) soya-flour generally resulted in increase in fat contents (approx. 130%), ash (approx. 54.9%) and fibre (approx. 217%). A panel of evaluators showed greatest preference for soya-supplemented Ogi porridge made from S. vulgare, while soya-supplemented Ogi porridge from S. guineensis was the least acceptable. The soya-supplemented Ogi flour (moisture content 10%) kept well and retained their original flow- properties after twenty-one days of storage. © 2010 Academic Journals. Source


Adetunji B.I.,Abeokuta Federal University of Agriculture | Adetunji B.I.,Bells University of Technology
Solid State Sciences | Year: 2016

The pressure dependence of the bond length and energy gap in chalcopyrite CuInS2 between 0 and 40 GPa has been investigated using pseudopotentials plane-wave method within the generalized gradient approximation for the exchange-correlation potential. We found that the bond length decreases as the pressure increases. Also, the energy gap of CuInS2 expands as the pressure increases with a rate of 10.693 meV/GPa. The linear pressure coefficient calculated is approximately half the reported experimental value of 23 meV/GPA. Our calculated bulk modulus of 68.7 GPa is in good agreement with the available experimental and theoretical values. The present calculations show that the d-electrons of Cu ions are one of the important factors that dominate the contributions to the I-VI bonds and the energy gap in CuInS2. © 2016 Elsevier Masson SAS. All rights reserved. Source


Baoku I.G.,Bells University of Technology | Olajuwon B.I.,Abeokuta Federal University of Agriculture | Mustapha A.O.,Abeokuta Federal University of Agriculture
International Journal of Heat and Fluid Flow | Year: 2013

The influence of third grade, partial slip and other thermophysical parameters on the steady flow, heat and mass transfer of viscoelastic third grade fluid past an infinite vertical insulated plate subject to suction across the boundary layer has been investigated. The space occupying the fluid is porous. The momentum equation is characterized by a highly nonlinear boundary value problem in which the order of the differential equation exceeds the number of available boundary conditions. An efficient numerical scheme of midpoint technique with Richardson's extrapolation is employed to solve the governing system of coupled nonlinear equations of momentum, energy and concentration. Numerical calculations were carried out for different values of various interesting non-dimensional quantities in the slip flow regime with heat and mass transfer and were shown with the aid of figures. The values of the wall shear stress, the local rate of heat and mass transfers were obtained and tabulated. The analysis shows that as the fluid becomes more shear thickening, the momentum boundary layer decreases but the thermal boundary layer increases; the magnetic field strength is found to decrease with an increasing temperature distribution when the porous plate is insulated. The consequences of increasing the permeability parameter and Schmidt number decrease both the momentum and concentration boundary layer thicknesses respectively whereas an increase in the thermal Grashof number gives rise to the thermal boundary layer thickness. © 2013 Elsevier Inc. Source


Ogunye F.O.,Bells University of Technology
Journal of Materials in Civil Engineering | Year: 2014

The susceptibility of stabilized soil (SS) masonry components to forces of degradation is significantly dependent on the choice of constituent materials, production techniques, mode of exposure, as well as the aggressiveness of the medium to which they are exposed. This paper examines the choice of mix design format for SS masonry materials contingent on their weatherability characteristics and analyzes the mechanisms that trigger potential weathering variations. Two reproducible model soils (sandy loam [SL] and silty-clay loam [SCL]) in the presence of a variety of stabilizers, pressed at 6 N=mm2 into blocks, applied two curing routines, and measured weight loss following two forms of water-based degradation were used in the study. The test program shows remarkable potential for erosion resistance of SL-cement and SCL-lime mixtures that reflect the inherent variability in the material composition, nature of soil-stabilizer composites, and technique of exposure. The relevance of the weatherability study in the use of SS-based materials in the humid tropics demonstrates innovative and improved use of materials through clearly defined performance indicators and offers capability for retention of desirable properties like restrained configuration and attractive appearance in the building envelope, which otherwise would have been compromised. © 2014 American Society of Civil Engineers. Source

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