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ISSN: 2545-5818    frecuency : 4   format : Electrónica

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Volume 15 Number 1 Year 2019

14 articles in this issue 

G. C. Akobundu, A. O. Gbenga-Ilori

This paper presents a global positioning system (GPS) anti-jamming technique using a smart antenna system. In anti-jamming systems, adaptive array antennas are used to estimate the direction of signals arriving at the antenna and spatially filter the desi... see more

Pags. 1 - 16  

B. O. Oyefeso, R. A. Raji

Cocoyam (Xanthosoma sagittifolium) has served as a cheap carbohydrate source for many people in the developing countries with prospects in the production of animal feed, lager beer, and its starch as binding agent in drug formulation. Drying is an importa... see more

Pags. 17 - 24  

O. A. Adetayo, B. I. O. Dahunsi

The rate at which timber chars varies between species and predominately dependent on density and moisture content. This study involved determination of charring performance of Nigerian wood species used for constructional purposes and comparing their char... see more

Pags. 25 - 39  

A. T. Layeni, A. I. Olanrewaju, C. N. Nwaokocha, M. A. Waheed, S. O. Giwa, S. I. Kuye, K. A. Adedeji

The design and comparative engineering economic analysis of two Air-conditioning (AC) systems, mini-split and variable refrigerant flow (VRF), for the new Engineering Complex Building, at the College of Engineering and Environmental Studies, Ibogun Campus... see more

Pags. 55 - 66  

P. O. Oluseyi, T. O. Ajekigbe, T. J. Akintunde

Due to the increase in electricity demand, transmission sector has become overstressed since it can only be built at vast cost. In many developing economies, the network is highly susceptible to outages, collapse as well as partial or total failures, sinc... see more

Pags. 77 - 96  

O. O. Mohammed, M. W. Mustafa, A. O. Otuoze, S. Salisu, A. Y. Abdulrahman, N. T. Surajudeen-Bakinde

Several deterministic approaches have been proposed in literature for available transfer capability (ATC) computation. However, the gradual shift in power generation sources from fossil fuels to renewable energy sources has a remarkable influence on the A... see more

Pags. 97 - 108  

Alfred N. Jones

Chemical coagulants and flocculants have been used for decades in water treatment. However, because of cost issues associated with the entailment of importation importing of these chemicals, developing countries were left with no other option th... see more

Pags. 109 - 123  

I. A. Kuti, T. A. Ewemoje, B. A. Adabembe, J. J. Musa, S. C. Nwosu

The study assessed the effect of different riser heights on the sprinkler irrigation performance to cater for the cultivation of taller crops and reduce water losses. A layout of 144 m2 was designed according to the length of mainline and lateral lines, a... see more

Pags. 124 - 132  

A. G. Adeogun, M. A. Akinpelu, M. A. Yusuf, R. A. Animashaun

In this study, selected culverts along Ilorin – Jebba road, Kwara State were hydraulically analyzed using HY-8 modelling tool. Hydrological analyses of the culverts were performed using rational method for the computation of design discharges.  On ... see more

Pags. 133 - 141  

J. O. Igbokwe, L. N. Onuoha, M. O. I. Nwafor, N. A. Aviara

This study investigated fuel properties of pure petrol blended with bioethanol produced from Nigerian waste palm bunch. The produced bioethanol was blended with pure petrol at volume percentage ratio of 0:100, 10:90, 20:80, 30:70, 40:60, 50:50, 60:40 &nbs... see more

Pags. 142 - 152  

T. E. Odetoye, E. O. Ajala, D. S. Ogunniyi

Biofuels are attracting a lot of research attention as a source of renewable energy due to environmental benefits and prospects of energy security. The expectation of the global community is particularly high towards Sub-Saharan African countries like Nig... see more

Pags. 153 - 162  

Y. O. Abiodun, O. O. Sijuwola

The potential use of supplementary cementitious materials in concrete for improving concrete properties has been a growing concern in recent years. This is due to the environmental and health hazards associated with the increase in the use of cement in co... see more

Pags. 163 - 173  

G. U. Asonye, S. N. Asoegwu, J. N. Maduako, C. N. Madubuike

Information on the optimum energy requirements for cutting vegetables is useful in order to estimate the amount of energy needed to cut given products with known physical characteristics. This will aid engineers and product designers in the development of... see more

Pags. 174 - 189