The weld bead geometry is very important in predicting the quality of weld as cooling rate of the weld depends on it. For this purpose, the Taguchi technique was applied to determine optimum process parameters of weld bead geometry in submerged arc welding. The study involves usi...
Open access
Research Article10.9734/jerr/2020/v13i417111
Local welders in Nigeria are prone to poor quality weldment because of their lack of welding technical skills. When these local welders carry out their welding operation, the welded joints are considered to be good enough because the metal materials welded together are seen to be...
Open access
Research Article10.9734/jerr/2020/v10i217036
In many countries manpower problems in the field of health care are regular items on the agenda of policy makers. To avoid mismatches between demand of care and supply of care on national and regional levels, manpower planning models and methods are used to determine adequate num...
Open access
Research Article10.9734/jerr/2019/v8i116981
The present paper aimed to investigate the analysis of quality losses in the manufacturing process of 50 cl R/Spirit bottles using Statistical Quality Control method. The analysis covered the factors that affect the quality of the glass bottles and how the production process can...
Open access
Research Article10.9734/jmsrr/2018/v1i211
The financial cost of downtime can be very significant, especially in manufacturing industries. As a result, no business wants to experience downtime. In this study, the reliability of two identical machines code named GDA and GDB used in a cement manufacturing industry was asses...
Open access
Research Article10.9734/jerr/2019/v7i216965
The focus of this study was to investigate the impact of corrosion attack in carbon steel C-1040 marine piping system using weight loss method. Two carbon steel specimens (coupons) of cylindrical shape were selected and weighed before they were exposed to two different test solut...
Open access
Research Article10.9734/jerr/2019/v4i116892
This research was undertaken to comparatively determine the effects of corrosion in cast steel C-1030 and copper C-642 used as selected materials in marine heat exchanger design. Cast steel C-1030 immersed in freshwater at 0.0003M after twenty one (21) days (0.0567yr) gave corros...
Open access
Research Article10.9734/CJAST/2019/45822
About 80% interruptions of cellular network availability occur due to power outage on BTS stations and reliability analysis of these systems is yet to receive exhaustive studies. Most network providers solely depend on generating power on their BTS sites using diesel generators s...
Open access
Research Article10.9734/jerr/2018/v2i416705
The maximum likelihood estimation method is an effective technique for estimating the parameters of the Weibull distribution. However, it is an arduous task to compute the parameters of the Weibull distribution using numerical methods, hence; various reliability software packages...
Open access
Research Article10.9734/jerr/2020/v16i217163
The microstructure of a weldment can be maintained by ensuring a steady state homogenous melting profile of the welding operation, which includes the deposition of optimum volumes of melted filler wire and substantial part of the heat affected zones of the parent metal to form th...
Open access
Research Article10.9734/jerr/2019/v5i116918