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 study was aimed at the evaluation of the effect of iron ore tailings as an admixture in cement stabilization of lateritic soil. Air-dried soil was treated with ordinary Portland cement (OPC) �“ iron ore tailing (IOT) blend in stepped concentration of 0, 2, 4, 6 and 8 % by dry weight of soil for OPC and 0, 2, 4, 6, 8 and 10 % by dry weight of s... Continue Reading
To utilize the economic benefits of elephant grass (pennisetum purpereum) and exploit its potential as biomass for glucose production, the kinetic model for the production of glucose from the grass was investigated at the optimum conditions of hydrolysis (pH 4.5, temperature 45 oC, time 24 hours). The grass was characterized, pretreated and then hy... Continue Reading
Grey water is the left over water from baths, showers, hand basin and washing machine; in some cases water from the kitchen sink. The use of some synthetic chemical reagents in the treatment of grey water has been reported to be cancerogenic. The present study is an investigation into the possibility of using environmental friendly substances like,... Continue Reading
This research was conducted to investigate the suitability of using a renewable, sustainable and environmentally friendly biodiesel as part or full substitute of the petroleum diesel. Biodiesel from Cotton, Jatropha and Neem seeds, were produced and their compositions were analysed using Gas Chromatography-Mass Spectroscopy. The biodiesels were the... Continue Reading
Proportional-Integral-Derivative (PID) controllers have been widely used in process industry for decades, from small industry to high technology industry, but they still remain poorly tuned by use of conventional tuning methods like the Zeigler-Nichols method. In this work, PID controller’s parameters for deep space antenna positioning system wer... Continue Reading
Modern electrical devices such as Compact Fluorescent Lamp (CFL), many of which are non-linear loads inject harmonics into the Power Distribution Network (PDN). For the devices to operate efficiently as well as reduce electricity consumption and environmental impacts without introducing undesirable side effects, such as harmonics into the distribut... Continue Reading
The study of the evaluation of the factors affecting the Self-Purification Capacity of River Kaduna, Nigeria in addition to developing an empirical relationship for the reaeration constant was investigated during the period of February, 2014 to July, 2014. The physico-chemical properties and river flow variables were collected bi-monthly. This was ... Continue Reading
In recent times, noise has been recognized as a major source of pollution in many urban and semi-urban settlements. This study identified the various sources of noise, compared noise levels in various parts of the study area with recommended standards and determined the geo-physical characteristic of noise generated in Zaria metropolis. A noise met... Continue Reading
The use of Static Random Access Memory (SRAM)-based Field Programmable Gate Array (FPGA) in critical applications has been considered a solution in space and avionics domain due to its flexibility in achieving multiple requirements such as re-programmability and good performance. However, SRAM-based FPGAs are susceptible to radiation induced Single... Continue Reading
With the ever-growing energy demand over the globe, fluidised bed combustion (FBC) technology is continuously gaining importance due to its ability to burn different low-grade coals and biomass as source of fuel. This study presents a waste-to-energy process by incineration of corncob as an agricultural waste in a fluidised bed boiler for thermal e... Continue Reading
This research work was carried out to investigate the effects and suitability of Cassava starch as an admixture in cement paste and concrete. A standard consistency test was carried out on the cement paste with concentrations of the cassava starch at 0%, 0.5%, 1%, 2%, 3%, 4% and 5% by weight of the cement used in the paste. A prescribed concrete mi... Continue Reading
Bandwidth utilization in a campus network if not properly managed,may leads to the congestion of the network bandwidth. This research work presents bandwidth control system implemented at the access layer of a campus network which is aimed at reducing the processing time at the core of the network. Ibrahim BadamasiBabangidaUniversity Lapai (IBBUL) ... Continue Reading
This research was conducted to produce asbestosfree automobile disk brake pads using eco-friendly; Periwinkle and Fan palm shells materials. The use of asbestos fiber is being avoided due to its carcinogenic nature that might cause health risks. A new brake pad was produced using agro waste materials (periwinkle shell and fan palmshells)with thermo... Continue Reading
The control of voltage level has been identified as one of the most important operational needs for efficient and reliable operation of power system equipment. Due to the fact that both the utility and customer equipment are designed to operate at certain voltage ratings. Prolonged operation of the equipment at voltages outside the allowable range ... Continue Reading