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....
Abstract The manufacture of abrasive grains in igeria has been severely impeded by the difficulty of identifying suitable local raw materials and the associated local formulation for abrasives with global quality standards. This paper presents a study on the formulation and manufacture of silicon carbide abrasives using locally sourced raw materials in igeria. Five local raw material substitutes were identified through pilot study and with the initial mix of the identified materials, a system...
ABstra& Mmy engheedng applidbw idhe problem cfa hielo ading pprp which is ojet: IIU~to lmck and criticrrl in design anrjysiz Tlis winch4@ de- Imming JO- developed in this work incorpamtes the gmphical display of djlnmnlc WingO PI the Enek or rope ~Jlltew inc11 Ifl within hef irst ssm& of fis opernd011T. he learning @am oUma tlts umr to gene- a profile of this load arid ia amelemtion agaimt time in order to obIain ihe humwh bs of the Iaard io be boms by wkde uniL IP~Lfmt~irse u nderplayed in n...
Abstract: The objective of this study is to investigate the influence of service situation on the mechanical properties of plain nails manufactured from low carbon steel. The influence of the degree of cold drawing on the mechanical properties and strain hardening of the material is investigated by tensile test experimentation. The stress-strain relationships of the cold-drawn low carbon steel were investigated over the 20, 25, 40 and 55% degree of drawn deformation for the manufacture of 4, ...
ABSTRACT Sand production is a major issue during oil and gas production from unconsolidated reservoirs. In predicting the onset of sand production. it is important to accurately determine the failure mechanism and the contributing parameters. The aim of this study wa to determine sand failure mechanism in the Niger-Delta. identify the major contributing parameters and evaluate their effects on sanding. Completion and production data from 78 strings completed on 22 reservoirs in a Niger Delta ...