Abstract The study was carried out to develop a training programme in cocoyam production for enhancing job opportunities of youth in South Eastern Nigeria. The study adopted research and development (R & D) design. The study was carried out in the South-East states of Nigeria, namely Abia, Anambra, Ebonyi, Enugu and Imo states. The population of the study was 5075 made up 21 lecturers, 292 extension agents and 4510 registered cocoyam farmers all from South-East Nigeria. The sample for the st...
Abstract Titanium and its alloys are an important group of engineering materials, with a wide range of applications in aerospace, aircraft, automotive, chemical and biomedical industries. They have excellent combination of strength and fracture toughness as well as low density and excellent corrosion resistance but with poor machinability due to their low thermal conductivity and high chemical reactivity with cutting tool materials. In this study, the effects of cutting parameters and tool we...
ABSTRACT Despite the low-level of Technological inputs and assimilation in Nigeria in general, Business operations have benefited considerably from Technology. Technology input haw been in form.of vastly improved communications, power availability, distribution, new tools of machinery for production, and health facilities. In this paper, the situation of Transportation and Food industries are focussed on in respect of great changes that have taken place therein. Suggestion on the practical wa...
ABSTRACT In metal cl.Itting operations, performance of the cutting tool is the major determinant of the productivity, functionality and production cost of the machined component. In this work, the performance of uncoated cemented carbide tools with International Standard Organisation (ISO) designation SNMA 120406 was evaluated for tumitu; of NST 37.2 steel. Turning operations were conducted on M300 /-Iarrison type lathe driven by 3.0 hp Kapak induction motor. The cutting conditions used were:...
Abshct : This paper focuses on the design appreciation of a washing machine or a washer. A washer is designed to clean laundry, such as clothing, towels and sheets. All washing machines work by using mechanical energy, thermal energy, and chemical action. Mechanical energy is imparted to the clothes load by the rotation of the agitator in top loaders, or by the tumbling action of the drum in front loaders. Detailed components designs were carried out on all the major elements of the washing m...
Abstract Upper bound solutions to a 4-High reversing aluminium cold-rolling sheet mill was obtained in this work using both analytical and graphical methods. The upper bound method was applied to the rolling of an Al 1200 sheet from 7mm to 0.6mm in six passes. It was observed that both methods were very effective in predicting upper bound load value with the graphical method giving a higher value using input velocity values from industry. However, it was observed that the graphical method bec...
ABSTRACT Local production of elechodes. in Nigeria has always bpb~y m ajor manufachmrs. The technical partrsers have maintained that there are no suitable substiW!es for the raw materials locally in an attempt to continue b import from *eit. 'h~.~coqn@esOu r effort at .lpwl sourcing required experimentation. Mi could not be carried out without a Wns of applying the coatmg to. the wire. This was effected through a direct exhder. which was fabricated to mat eWodes.pnder manual presswe .bu@ up t...
ABSTRACT Static analysis can detect a variety of defects and weaknesses in system source codes even before the code is ready to run. Runtime analysis on the other hand, looks at running software to detect problems as these occur, usually through sophisticated instrumentation. Static analysis prevents problems from entering the main code stream and ensures that any new code is up to standard. Static analysis tools can uncover security vulnerabilities, logic errors, implementation defects, and...
ABSTRACT Tlt b pqcr considers tlre problent of scltedulir~gin fiw-sliop by Joh~zson's Algorithm tnetl7od and Genetic Algurii/tnt nletltod to jind an optimal segtiencc for n jobs rntjrncl~ ineb uxeii or1 ~nir~Gtue~la~prse d tinte. I/ has been sl~own hat tlre method for Jinllir7g at1 opti~~rsaelq trence for n job,^, m-tltncltilt~b ased on mini~~tzrmm ake spun Kcywords:Johnson's hlgoritlim, Scheduling, Flow-Shop, Gcnctic Algorithm, Optimal SC~UCI
ABSTRACT All real physical structures behave dynamically when subjected to loads or displacements. This research paper, therefore, presents seismic response of field fabricated liquefied natural gas spherical storage vessels using finite element analysis. The seismic analysis procedure used represents a practical approach in quantifying the response of spherical storage vessel with its content when it is subjected to seismic loading. In the finite element method approach, six degrees of freed...
ABSTRACT A study was undertaken to assess the tractor-hiring unit of Edo state, Nigeria. The criteria used were fleet of equipment, personnel and workshop facilities and its impact on the farming populace in the state. The study adopted the use of a questionnaire and interview schedules. Among the information requested from the respondents were access to services rendered by the unit and increment in farm sizes. Records available at the headquarters and zonal offices of the unit provided addi...
ABSTRACT Reliance on mobile connectivity has led to demands for wireless spectrum capacity to grow on a daily basis resulting to congested networks. Ensuring acceptable levels of Quality of Service (QoS) for users in wireless communication systems, through continuous wireless network analysis using simulation tools based on radio propagation models has become increasingly prominent. To provide automated analytical model building, the use of machine learning methods has been considered to pre...
ABSTRACT In an attempt to facilitate the processing of vegetable material which is a daily nutritional food requirement of man, a vegetable slicing machine has been developed. This paper therefore presents the developmerit of a vegeuble slicing machine which is a mechantcat device that is used for slicing vegetable materials instead of the cnlde cumbersome and unhygienic method of manual slicing of vegetable materials. l*he dwdoped machine consists ofthe hopper, the cutter housing, the cuttin...
Abstract: The microstructure of the base alloy and thermomechanical affected zone (TMAZ) of inertia friction welded powder metallurgy (PM) RR1000 were examined by the use of stan'dard metallograpllic tecl~niques involving optical. analytical scanning and msrnission elmtron inicmsmpes equipped with enew dispersive spectrometer nnd an electron probe micro analyscr. It was discovered that liquation of grain boundary phases present in the pre-weld alloy resulted in the formation of eutectic type ...
ABSTRACT Plant biodiversity and ethnobotanical potentials of University of Agriculture Makurdi (UAM) Wildlife Park and Ikwe Games Reserve, Benue State, Nigeria, were investigated in this study. Floristic survey was conducted in the two reserves using stratified sampling technique based on the three identified microhabitats in each of the reserves. Nine plots measuring 25 m x 25 m were laid in each of the reserves to survey trees and shrubs with diameters at breast height (dbh) 5 cm and above....