This study was aimed at developing chitosan-rice husk ash adsorbent for the removal of crude oil from contaminated water. Design Expert software 6.06 was used to design the adsorption experiment. The adsorption was tested for Langmuir, Freundlich and Temkin isotherms and the kine...
Open access
Research Article10.9734/jerr/2018/v2i310962
In the present study, Magnetohydrodynamics (MHD) natural convection Casson fluid flow over a non-isothermal stretching sheet embedded in a porous medium is considered. The set of governing differential equations are simplified by similarity variables into coupled ordinary differe...
Open access
Research Article10.9734/jerr/2018/v2i310957
Due to the advancement in science and technology all over the world, there is a significant increase in the rate of crime and sophistication in crimes; as a result, it is necessary to ensure the security of one’s self and one’s valuable belongings. The main goal of this paper is...
Open access
Research Article10.9734/jerr/2018/v2i310954
Differential implementation is becoming highly popular in Radio Frequency Integrated Circuit (RFIC) design, notably for its high immunity to common-mode noises, acceptable rejection of parasitic coupling, and increased dynamic range. One RF front-end building block that is usuall...
Open access
Research Article10.9734/jerr/2018/v2i310956
Quality of a composite material like sandcrete block is basically a function of the basic properties of the constituent ingredients, mix ratio relationship and its production characteristics. This study, investigate the effects of change in quantities of the constituent ingredien...
Open access
Research Article10.9734/jerr/2018/v2i310082
This research studied strength-characteristics of concrete using waste tyre-rubber as partial replacement for coarse aggregate in concrete construction and compares the results to those of conventional concrete. The specimens were produced with percentage replacements of the coar...
Open access
Research Article10.9734/jerr/2018/v2i29948
Chito-protein was successfully synthesized from fish scale. The ability of a coagulant (chito-protein) prepared from fish scale (FSC) to carry out an effective removal of pollutants from food processing industry (vegetable oil industry wastewater, VOW) was evaluated at bench scal...
Open access
Research Article10.9734/jerr/2018/v2i29943
Buildings are essential facilities which represent a substantial percentage of most tertiary institutions assets, user needs and operating costs. The maintenance levels of these buildings are very crucial to educational effectiveness. However, in spite of the crucial role of thes...
Open access
Research Article10.9734/jerr/2018/v2i29937
This study focused on Modeling and Optimization of the operational costs of Nissan Urvan Vehicles of a fleet operator in Anambra State Nigeria. The special design used to fit a second order model needed to optimize the operational costs of Nissan Urvan Vehicles was Box - Behnken...
Open access
Research Article10.9734/jerr/2018/v2i29916
Geophysical and geotechnical studies were carried out at a proposed location for the construction of a multi-storey structure in Akure, Southwestern, Nigeria. The aim was to ascertain the suitability of this location for both Founding and Engineering structures. The geophysical i...
Open access
Research Article10.9734/jerr/2018/v2i29910
Aims: To introduce a cost-effective tool for reading and interpreting machine printed text in document images and save as computer-processable codes. Study Design: In this work, emphasize is given on extracting uppercase & lowercase letters and numerals from document images...
Open access
Research Article10.9734/jerr/2018/v2i19904
Path loss is an attenuation of Global System for Mobile Communication (GSM) signal between Base Transceiver Station (BTS) and Mobile Station (MS). Path loss helps network engineers in planning, designing and implementing telecommunication networks. This work examines the applicab...
Open access
Research Article10.9734/jerr/2018/v2i19900
The human and economic development of any nation is largely tied to the availability of energy, hence the need for an adequate supply of electricity by reliable energy systems. Nigeria’s economic growth is undermined by the epileptic nature of its electricity supply system. Conse...
Open access
Research Article10.9734/jerr/2018/v2i19896
The inverter system is a device that converts the Direct Current (DC) from a battery to an Alternating Current (AC) which can be used for appliances. It does not only convert the current but also steps the voltage of the battery up to the required value. The inverter system does...
Open access
Research Article10.9734/jerr/2018/v2i19890
The ratio of real power flowing into the load to the apparent power in a circuit is referred to as the power factor (PF). It has no unit as its values lie between 0 and 1. Power factor correction (PFC) leads to a reduction in apparent power drawn from the ac source which in turn...
Open access
Research Article10.9734/jerr/2018/v2i19883