ABSTRACT This study analyzed the connection between tribological and other forms of processes in manufacturing industries to productivity in such outfits. Results from the study showed that 54% of the visited industries recorded the highest hours of downtime due to tribological processes, while,15% and 31% of the industries had the highest downtimes hours resulting from electrical and other processes respectively. Also 23% of the total industries were observed to have more electrical faults, ...
ABSTRACT This .paper presents a contribution on the development ot a,neurofuzzy mathematicaJ model that aids if? captunnq and analyzing the, various parameters iri;oven design. The oven 'was designed ~pecif.ically,for domestic and commercial baking: operations, The neurofuzzy methodolOgy was used to requlate the oven baking temperatures to acceptable standards. Particular use was made 'of neurofuzzy model since it is animprovement on the process design. The work.was motiyatedby the need fm· ...
ABSTRACT The increase in pork consumption globally in recent times has led to a corresponding increase in pig production with more people being employed in the industry to provide the needed services. Pigs are known to generate a lot of noise which could constitute a potential health hazard and against which remedial measures must be taken. The establishment of the levels of noise generated in piggery production units and their possible consequences on the workers in such units was the main o...
ABSTRACT Traffic congestion is a common feature on highways in many cities of the world, including Ibadan, Nigeria. Previous studies have shown that several mathematical traffic flow models developed to analyse congestion cannot be easily generalised or adapted to varying situations. In addition, validation errors of some models are as high as 60.0 %. In pursuit of the objective of minimising traffic congestion in parts of the Ibadan metropolis, headway simulation models were developed for th...
A,s i.mpI e correlation has been .developed for estimating primary "recovery facto;rs for Niger Deltaoil reservoirs~The correlation ,. which was developed, from data collected across the Niger Delta, 'is valid for reservoirs with strong, wa~ter d'r Lves. .. " I~ , ' , Only two major parameters are r equi r-ed ,for 'the recovery factor "calculations . in this" work, ',unlike other multi-parameter correlations. This 'makes t.hLs rco.rr'eLat.Lonvery easy to apply. An expression has also beeri in...
ABSTRACT / grinding wheel is an expendable wheel which is made of very small, sharp and hard silicon carbide abrasive particles or grits held together by strong porous bond. This paper presents a study on some factors and parameters of silicon carbide abrasive grinding wheels which were developed and formulated Irom locally sourced raw materials in Nigeria. Six local raw material substitutes were identified through pi lot study and a systematic search for an optimal formulation of silicon car...
AbstractThe effects of carburising time, temperature and percentage energiser on the case-depth and hardness of a steel ST37-2 have been studied. For carburising medium consisting of hardwood charcoal and coke and various amount of sodium carbonate as energiser, increasing carburising time and temperature increased both the depth and hardness of the case. Increasing both the amount of energiser and carburising time lowered the activation energy for the carburisation process. The average hardn...
Abstract In the United Republic of Tanzania (URT), all environmental issues related to the mining industry are regulated according to two principle Acts: The Mining Act and the Environmental Management Act, and their respective regulations. The current acts were enacted in 2010 and 2004 respectively. Mineral exploration (that includes all on-site activities performed before a mining project is declared feasible) projects in URT appears to be “unforgotten phenomena” in the two major legis...
Abstract This research work investigated the effect of current density, bath concentration, bath soIution volume and electroplating time on nickel electroplating of low carbon steel. Varying voltage between 0.3 and 0.8 V, bath concentration between 0.27 g/cm3 (0.79 rno~ddan d 0.35 glcm3 (1.02 mo~dmp, electropfig time between 1Q and 30 minutes and bath solution volume between 200 and 700 cm3, the effect of these process variables on electroplating was studied. The temperature was kept in confo...
ABSTRACT An assessment of farm transportation system to ascertain the availability of transportation for the evacuation of farm produce was undertaken in Osun and Oyo states of Nigeria employing printed questionnaires and personal communication as means of information collection. 20% of the farmers reside at between one and three km from their farms while for the remaining 80%, it ranges from four to 16 km. 17.6% of the farmers travel between one and three km to sell their produce while for t...
Abstract The study was carried out to identify the entrepreneurial skills required by Internally Displaced Persons (IDPs) in quail production for sustainable living in North-Central Nigeria. Specifically, the study identified skills in planning, rearing and marketing of quail and its products in the area of study. To achieve these specific objectives, three research questions and three null hypotheses were formulated to guide the study. The study adopted descriptive survey research design. T...
ABSTRACT This work was designed to determine the ways of enhancing food production through organic agriculture among farmers. Five research questions and five null hypotheses guided the study. A survey research design was adopted for the study.The study was carried out in northern zone of Cross River State, Nigeria. The population for the study was 230 comprising 205 registered crop farmers and 25 Agricultural Development Programme (ADP) extension agents from Ogoja Agricultural Zone respecti...
Abstract The study was carried out to determine the effects of Moringa oleifera leaf powder additive on the growth of layers, egg production and nutritive value of eggs. Specifically, the study sought to determine among others the effects of Moringa oleifera leaf powder fortified feeds and control feed on the growth of layers, effects of different inclusion rates of Moringa oleifera leaf powder on the growth of layers, effects of Moringa oleifera leaf powder fortified feeds and control feed ...
Abiroct :.~am'fburi s usually required for the preparaUon of pounded yhWh lch is a dally nutdthnal fwd requlremeilt for most Africans. it facilitates he prephatian of pounded yam for both domestlc end cwnkclal dorrsumptlon. The prpducfion process and the baslo operations involved In the production of pounded yam ftour have been investigated !n'@her to -ti& the prodyctron capadty of the company studled, A time study mode! was &weloped and appli@ to aria1yze the vartws baAc operaths Imrolved in...