ABSTRACT Since early 1995 when pressure was mounted on the Raw Materials Research and development council in Nigeria, with a view to sourcing wire, flux and binder locally, little or no success has been recorded. As at 1998,allthe raw materials including core wire for electrode manufacture in Nigeria were still being imported. The aim of this project is therefore to explore the possibility of using locally sourced wire in electrode production. In this research, wire drawn at the Oshogbo rol...
ABSTRACT The four stroke reciprocating internal combustion engine has been used as a case study, being that commonly utilized in most automobiles. General properties of ceramics were discussed while exposure was given to some high performance ceramics. theoretical deduction and analysis were then carried out to show improved engine performance using ceramic components. The engine performance parameters considered are (i) power output (ii) mean effective pressure (iii) speed of engine rotation...
ABSTRACT The grinding wheel is made up of very small, sharp and hard silicon carbide abrasive particles or grits held together by strong porous bond. These silicon carbide abrasive are hard crystalline materials which are held together by the strong, porous bond and these abrasive materials which are of extreme hardness are used to shape other materials by a grinding or abrading action. The paper presents, an analysis of the various component elements we have, the size of the grains and its s...
ABSTRACT This paper discusses the development of unique software for the design of various cam profiles for she plate cam operating a flat face follower. The method employed in this work is that of generating geometrical cam coordinates using standard cam motions, thereby avoiding the problem of undercutting resulting from graphical layout methods for similar cam and follower types. Determination of critical designs output parameters were carried out by the developed software computational a...
ABSTRACT Market-driven economies and deregulated electricity industry environments have stimulated minimization of the distribution losses even though they do not constitute major operational or quality of supply problems. This research discusses a method for evaluation of distribution losses and an effective management approach to loss minimization and revenue collection. In this research the contribution of other authors was sought on the distribution losses, their analysis and the va...
ABSTRACT Several works have explored the relationship between oil and gas exploration and the livelihood. Such works posit that the two are undeniable inversely related (Auty, 1993; Le Billon, 2005; Basedau, 2005). Inferring from the state of oil exploration and its effects on the livelihoods of the host communities, one observes the significant role oil and gas exploration play in the national economy while at the same time impoverishes the host communities. Thus, using the positivist approa...
ABSTRACT Ghana commenced the commercial production of oil in 2010 with the subsequent passage of the Petroleum Revenue Management Act, 2011 (Act 815) and the Income Tax Law to govern the management of the petroleum revenues. In spite of Act 815 as amended, Act 893 in 2015, regarding sustainable revenue management; government’s expenditure from the Ghana Petroleum Fund on recurrent and non-capital items creates sources for concern. This study therefore, was set out to examine the various pet...
This study utilized fractal disk dimension characterization to investigate the system response of a nonlinear, harmonically driven pendulum of mass, m (or weight. W) and length I over a well-defined parameter plane of excitation amplitude versus damping factor. The system response was simulated at three drive frequencies (symbol,*) of 1/3, 2/3 and 313. A Runge-Kutta fourth order algorithm, coded in FORTRAN programming language was used to simulate the System response over a 101 by 101 para...
In order to monitor and control the properties of drilling fluids, measurements are routinely made at the surface. However. these surface measurements may not be representative of down-hole properties where the desired functions of hole cleaning and other related issues are critical to the success of the drilling operations. Consequently, it is important to make necessary adjustments of the fluid properties obtained at ambient conditions to give estimate of properties at high tempera...
In this work, modifications have been done on a prototype pneumatic separator to improve its efficiency. The effects of the modifications were studied by carrying out performance test analyses on the two blowers and reciprocating sieve mechanism which make up the critical components of the separating machine. The variations in the feed weights of the sieve were analysed to determine the best and most effective screening process. Also, the best and least tilt angles of the blowers were co...
Presently, Nigeria is among the nations that are technically unable to meet their food supply needs from rain-fed production at a low level of inputs and appear likely to remain so even at intermediate levels of inputs at some point’s time between 2000 and 2025 (FAO 2002). For the rural areas of semi-arid Northern Nigeria, which experiences significant climatic and anthropogenic changes that have exacerbated food insecurity in the region, floodplain agriculture is critical to the survival...
ABSTRACT Control of mosquitoes is something of utmost importance in the present day with rising number of mosquito borne illnesses. The effect of mosquito bites cannot be overlooked considering how many deaths it has caused over the years. Specialty products like mosquito repellent used to combat mosquitoes are required but most of the repellants available use chemical means to repel or kill the mosquitoes which in a long run also becomes detrimental to ourselves and the environment. This pr...
Abstract This study investigated how farmers in Southwest Nigeria use mobile phones for agribusiness, the benefits of the use of mobile phones, and the challenges farmers face using the device. Driven by theory of information and communication technology for development, this study adopted survey and focus group discussion (FGD) methods. Stratified, random, purposive and convenience sampling techniques were employed to select the sample. A questionnaire and FGD guide were used to collect dat...
ABSTRACT The main purpose of the study was to assess Competency Based Training on the skills acquisition of Electrical/Electronic Engineering Students in Ghana, using Cape Coast Technical University as a case study. The researcher used descriptive research design for the study. The study adopted the mixed approach which made used of both quantitative and qualitative approaches. The study population was made up of all Electrical/Electronic Engineering Students, Lecturers, Laboratory Technicia...
ABSTRACT Maintenance is important to the success and continuity of firms, particularly in the changing society as ours. The effectiveness and the survival of organizations are largely enhanced by the ability of management to ensure that there is functional equipment, lands and buildings, infrastructure and fixtures. In the manufacturing setup, there is wear and tear of machines and equipment in the periods of usage that require sufficient maintenance to enhance their useful life. This ensure...