ABSTRACT This study was designed to determine the effects of challenge-based and activity-based learning approaches on technical college students’ achievement, interest and retention in woodwork technology. A pre-test, post-test, non-equivalent control group, quasi-experimental research design was adopted. The study constituted a total number of 122 subjects, 63 for the Challenge based learning, while 59 were for the activity-based learning. Eight research questions and twelve null hypothe...
Abstract Plate washing is a daily activity across the globe which involves a lot of energy to accomplish manually or mechanically. The objective of this work is to design and fabricate a dish washing machine that is efficient and easy to operate. Stainless steel and mild steel was used for the construction of the machine considering their availability, cost reduction and corrosion resistance. The motor used a power of 0.75hp (559.5 W), voltage of 240V and a speed of rotation of “1200 r.p.m�...
Abstract Subsurface oil viscosity data are usually 110t readily available for most reservoirs, as they are expensive to acquire. On the other hand, surface oil viscosity is routinely measured and therefore readily available for all producing wells. A method has been developed for converting the surface viscosity to reservoir viscosity data, using SPDC's "Field A" as a case study. Surface oil viscosity data from all producing wells in "Field A" where collected from SPDC-West Production Chemist...
Abstract This study was designed to determine the effects of field trip and land laboratory activities on students’ achievement and interest in poultry production in Senior Secondary Schools in Nsukka Local government Area, Enugu State. Six research questions were answered while six null hypotheses were tested at a 0.05 level of significance. The study adopted a quasi-experimental design and was carried out in Nsukka, Enugu State. The population of the study was 1,671 senior Secondary Sch...
ABSTRACT The study was carried out to determine the effect of suggestopedia instructional technique on academic achievement, interest and retention of metalwork students of technical colleges. Six research questions were answered while nine null hypotheses formulated were tested at a 0.05 level of significance. The study adopted a quasi-experimental design and was carried out in Lagos State. The population for the study was 410 male and female students. The sample size for the study was 114 ...
ABSTRACT: Safety practices and performance in a brewery industry in Nigeria was evaluated for a period of eight years between 2000 – 2007 using the principles of statistical expectation and efficiency index. The number of prevented accidents and the corresponding values of lives and property saved were estimated annually for the same period of eight years. The type of input resource, total number of input resources, total number of prevented accidents by class, the unit cost of each of the ...
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