Bituminous Stabilization of S1lty Sand is one method of improving the engineering properties of the Soil so that it can be used as fill. Sub-base and base materials for construction. In order to improve these properties, the following tests were carried out in the laboratory, liquid limit, moisture content, specific gravity, relationship between dr... Continue Reading
Energy conservation in wireless sensor networks (WSNs) is a key area of research aimed at addressing the challenge of efficient energy utilization. This is due to the fact that the Sensor Nodes (SNs) have limited energy. The limited energy has to be utilized efficiently in order to provide longer network lifetime for the wireless sensor network (WS... Continue Reading
Heavy crude oils are known to contain significant amount of high molecular-weight substances such as asphalthenes and resins hence, when refined, produce low amount of lightends (gasoline, kerosene and diesel fractions). Compared with light crude oils, as a refinery feed stock this singular reason coupled with difficulty of processing has made heav... Continue Reading
This work provides results for stochastic safetyevaluation of Nigerian timbers for bridge decks in accordance to American Association of State Transportation and Highway Officials (AASHTO) Load Resistance Factored Design (LRFD) design specifications.A timber bridge is modeled in accordance to AASHTO LRFD, 2010, to represent real life experiment in ... Continue Reading
Wind loading estimation is one facet of the entire design process. Wind speed as a climatic process which is time-dependent requires proper assessment in order to predict its speed for specified return periods. This requires a good understanding of the wind process within the lower atmosphere (where the designer of civil engineering structures has ... Continue Reading
This worked aimed at developing an optimal reconfiguration algorithm for a radial distribution network using fast and elitist non-dominated sorting genetic algorithm (NSGA II), considering distributed generation. The work models the reconfiguration using a pragmatic multi-objective approach considering active power loss and total voltage deviation,... Continue Reading
The generation of electric power using different fuel resources to meet load demand and losses while satisfying various constraints on the system involves high running cost (cost of fuel). Therefore, it requires electric utilities to minimize the cost of production of electric power by planning and dispatching generating units in an economic and ef... Continue Reading
The characterization of Azara copper ore was carried out. The samples were collected from three different locations in Azara, Awe Local Government Area, Nasarawa State, Nigeria. The physical observation shows that the ore has metallic lustre, dark bronze with greenish stripe and irregular or uneven breakages. The results obtained from physical anal... Continue Reading
The suitability of three types of locally produced fatty oils, as quenchants was investigated in this research work. Palm oil, shea butter oil and ground nut oils were used in quenching ST 60-2 plain carbon steel produced by Delta Steel Company, Aladja. The quench characteristics of the steel as determined by the Jominy End Quench Test compare favo... Continue Reading
The production of bio-ethanol from Elephant grass (Pennisetun purpureum) stem was carried out using elephant grass stem as a feedstock and a combination of Aspergillus niger at 0.2%(w/v) 0.4%(w/v), 0.6%(w/v), 0.8%(w/v) and 1%(w/v) concentrations and Saccharomyces cerevisiae (brewer’s yeast) at 0.5% (w/v), 1%(w/v), 1.5%(w/v), 2%(w/v) and 2.5%(w/v)... Continue Reading
Investigations were carried out for heavy metals composition of ambient air using a special instrument designed for this purpose. The lack of portable air sampler is a major obstacle to air pollution studies in Nigeria of recent. As a remedy to this, a simplified air sampler was designed and fabricated at the Water Resources and Environmental Engin... Continue Reading
The research work is centered on the failure analysis of the as-received locally produced grinding plates, development of high wear resistant grinding plates capable of grinding gold-bearing mineral deposit in Bagega village of Zamfara State. The work was carried out by evaluating the chemical compositions of the as-received grinding plate samples,... Continue Reading
Carbon Fiber-Reinforced Polymer (CFRP) composite materials have provenvaluable properties and suitability to be used in the construction of new buildings and in upgrading theexisting ones. One of the objectives of this study is to laminate solid timber columns with varying thicknesses of CFRP laminates to check the patterns of the stresses, displac... Continue Reading
Experimental and theoretical investigations were conducted on an existing sulphation pilot plant facility for production of leather lubricant, sulphated oil popularly known as fatliquor. This was carefully and critically done to evaluate the performance of the plant in respect of attaining the required process conditions. These include maintaining ... Continue Reading
This dissertation presents the development of an improved application specific tunnelling protocol selection scheme (iASTPSS) for site-to-site virtual private network (VPN). The aim is to develop an improved tunnelling protocol selection scheme for site to site VPN that is application specific, requiring security, bandwidth, and time sensitivity as... Continue Reading