Mobile ad-hoc networks are multi hop wireless networks comprising of a collection of wireless mobile nodes configured to communicate among each other without the aid of an existing infrastructure. They are free to move randomly and organize themselves arbitrarily. The network’s wireless topology may change rapidly or unpredictably. As a result, t... Continue Reading
Corncob Activated Carbon (AC) was produced via chemical activation with phosphoric acid (H3PO4) for the hydrolysis step and potassium hydroxide (KOH) for the impregnation step. In this work, optimization and development of the model equations for the preparation conditions of AC, Design Expert 6.0.6 Stat-Ease, Inc USA software was used. For the opt... Continue Reading
Waste cooking oil (WCO) as a feedstock used for biodiesel production is recognized as an attractive alternative to vegetable oil. However, the high concentration of free fatty acid (FFA) coupled with other impurities in WCO may require several pretreatments prior to transesterification. This study explored a novel method of estrifying WCO by employ... Continue Reading
The study examined the effects of faulty design and construction on the maintenance of building. A survey of randomly selected samples of 20 builders and 15 architects were conducted. Questionnaires were used to collect data from Architects and Builders. The survey included 11 groups of defects and sub defects in each groups. The predominant severi... Continue Reading
The quest for economy in asphalt production using locally available materials necessitated this research which is aimed at evaluating the suitability of Saw Dust Ash (SDA) as mineral filler in asphalt mixture.Chemical analysis, sieve analysis, specific gravity and plasticity index tests were performed on SDA. Asphalt briquettes prepared using Ordin... Continue Reading
Controlling and improving Quality has become an important business strategy for many organizations, because a business that can delight customers by improving and controlling quality can dominate its competitors. Hence, this project work focused on the application of statistical quality control technique to Habila Food and Beverage Nigeria Limited,... Continue Reading
Increasing population level, booming economy, rapid urbanization and the rise in community living standards have greatly accelerated the municipal solid waste generation rate in Minna metropolis. With about 0.22kg/person/day solid waste is generated and over 20 tons of wastes are dumped in dumping site daily. The main thrust of this study is to car... Continue Reading
One of the problems facing leather industries is to come up with an efficient way of reducing the organic pollutant loads of their wastewaters. This research dissertation was aimed at the preparation and application of ?-FeOOH and ?-FeOOH-SiO2-Al2O3 catalysts for tannery effluent treatment using Fenton oxidation process. Effluent at the point of di... Continue Reading
In Nigeria, there is a problem of inadequate electricity supply to the populace. A recognized reason for the energy poverty in the country is the poor handling of the electricity statistics provided by the National Electricity Regulatory Commission (Ajayi, 2006). Absence of good forecast is a dominant reason for the NERC‘s inability to manage the... Continue Reading
Several procedures are commonly used for water disinfection from bacteria. Unfortunately each procedure has its shortcomings. The most important shortcoming is the formation of disinfection by-products. Photodegradation of microorganisms using photocatalysts (such as ZnO) could be a good alternative. However, ZnO is a wide band gap (3.2 eV) semicon... Continue Reading
The perennial problem of petroleum products scarcity in Nigeria has instigated technocrats and scholars to take a critical look into the distribution system of petroleum products in the country. Seeing that other countries are exploiting the advantage of using railway transportation for distributing petroleum products this research project examines... Continue Reading
Frequent occurrence of pharmaceutical compounds in aquatic environments and drinking water has raised a concern about their potential effects on environment and human health. Advanced oxidation processes (AOPs) including heterogeneous photocatalysis have proved to be one of the most effective methods for water treatment. The coupling of TiO2 and Zn... Continue Reading
Heat treatment is one of the most important industrial finishing operations which helps in the improvement of mechanical properties such as hardness, tensile strength and impact strength of components being used in our day-to-day activities. A common method of achieving this is through quenching (agitated and static). An agitated quenching bath wit... Continue Reading
This study developedmethods to improve the efficiency and torque production of the single phase induction machine using a sinusoidal pulse width modulation (SPWM) control scheme. This research targets the capacitor-run single phase induction motor(CRSPIM) which is a large consumer of domestic and industrial power supply with the goal of improving i... Continue Reading
This research work presents the development of a Modified Link Budget for Low Earth Orbiting (LEO)-Based Land Mobile Satellite Communications System operating at Ku, K and Ka frequency bands by taking into cognizance the effect of additional loss due to Doppler frequency shift. Doppler frequency shift poses the problem of receiving higher or lower ... Continue Reading