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Volume 5 Number 1 Year 2009

15 articles in this issue 

F. N. Osuolale, A. N. Anozie, A. A. Obisanya

This study presents a thermodynamic analysis of a 220MW thermal plant using its design and operating data. The plant was simulated using HYSYS version 3.2 simulator software. The whole plant was sectionalised into three, each comprising of different units... see more

Pags. 1 - 6  

O. J. Oyelade

Maize has maintained an important position in the dietary habits of many people in developing countries. It becomes low moisture food when processed into flour although it may still be susceptible to deleterious effect of exogenous (fungi, bacteria and in... see more

Pags. 7 - 12  

Z. K. Adeyemo, T. I. Raji

This paper presents a comparative analysis of some digital modulation signaling schemes over fast and frequency non selective Rayleigh fading channel with multiplicative distortion, addictive white Gaussian Noise (AWGN) and maximal ratio combining (MRC) a... see more

Pags. 13 - 17  

B. A. Adejumo, A. O. Raji

Work on the quality attributes of gari sold in southwestern Nigeria is reported .This was with a view to determine the extent to which the product has conformed to FAO standards. Ten samples of gari were randomly collected from five markets within the stu... see more

Pags. 18 - 21  

J. T. Oladeji

Energy and its effective utilization are a paramount importance especially in this era of ever increasing demand for energy coupled with incessant interruption of power supply from the national grid. This study investigated the financial implications of i... see more

Pags. 22 - 24  

J. O. Olaoye

The paper presents a simulation of cassava grating system. Processing of gari is a job for women but its techniques of operation have witness measures of changes in Nigeria. There exist versions of mathematical graters that are powered either by electric ... see more

Pags. 25 - 31  

J. O. Olajide, T. Y. Tunde-Akintunde, A. O. Omolola

 Post harvest losses in fruits and vegetables in developing countries like Nigeria is high due to poor storage and processing facilities. The use of cabinet dryer for dehydration of fruits and vegetables to improve their shelf life has a drawback of ... see more

Pags. 32 - 35  

F. N. Osuolale, O. O. Ogunleye

Energy analysis of process has gained popularity overtime and has been used in detecting, quantifying and minimising inefficiencies in processes. This paper illustrates these and goes a step further in showing the relationship between exergy, energy, econ... see more

Pags. 36 - 42  

I. O. Oladejo

For six years of introduction of mobile communication in Nigeria though highly celebrated but has led to frustration on the part of customers/subscribers. These arise from myriads of poor interconnectivity to the signal fading. According to alberto et al.... see more

Pags. 43 - 48  

I. O. Oladejo, G. O. Fadiran

Recent advances in digital computer and digital communications systems have led to a corresponding growing interest in digital weight techniques because of engineering advances offered by digital systems over its analogue counterpart. In this work, a digi... see more

Pags. 49 - 52  

D. O. Idowu, M. A. Adejumobi

The angle of repose and coefficient of friction gain importance during food and handling, storage, processing and during process of designing these type of machines. Therefore, this study was conducted to investigate the effect of some processing variable... see more

Pags. 53 - 57  

F. A. Olutoge

The effect of rice husk ash as a component of hollow sandcrete blocks was investigated. The objective was to reduce the present high cost of building construction. The rice hush ash used was derived from rice husk which is a bye-product of milling rice. B... see more

Pags. 58 - 63  

O. E. Onawumi, A. S. Onawumi, F. E. Adelowo

Risk assessment of trace metal contamination in soil involves the understanding of its chemical form and concentration. In this study, the chemical species, distribution and bioavailability of cadmium in the soil within a battery factory in Ibadan, Nigeri... see more

Pags. 64 - 67  

A. A. Ayeni, D. A. Folarin

This research work is borne out of the interest to examine whether poor system operation control is what is responsible for power instability in Nigeria. The author researched into the system operation control of the power holding company of Nigeria centr... see more

Pags. 68 - 74  

R. Akinoso

An absorber-type collector device for crop drying or cooking was fabricated and tested. It comprises of doubled-walled wooden box with a double glazed tight fitting lass lid. The gap between the walls of the box was stuffed with dry sawdust. A soot-coated... see more

Pags. 75 - 79