Ergonomic studies were carried out on selected shoulder-strap brush cutters to evaluate some deficient ergonomic factors associated with their operations. These deficiencies were used as basis for modification. Contextual interview and field interactions were used to obtain ergonomic data that are descriptively analyzed. Results of ergonomic assessment shows that operators are subjected to pains around the neck, shoulders, upper arm and fingers which are largely traceable to shoulder-strap-long-time operation, exposures to prolonged mild vibrations, repetitive arm supination-pronation-swings during operation, exertion due to prolong suspension of the weight of the machine. Based on these outcomes, modifications were made on machine which include removing the machine weight from shoulder to a push-carrier that bear the machine weight, height adjustment mechanism to regulate the height of cut
Ergonomic studies were carried out on selected shoulder-strap brush cutters to evaluate some deficient ergonomic factors associated with their operations.
This study analyzed the effect of Distributed Generation (DG) on power system voltage stability of a distribution network. PortHarcourt Electricity Distribution Network was modelled and simulated in Electrical Transient Analyser Programme (ETAP 16.0)
Clay is one of the important industrial minerals whose application depends on its structure and chemical composition. Chemical characterization of Ijapo clay bricks and its additives (charcoal and rice husk)
The external skeletons of crabs contain chitin fibers in excess quantity. The chitin powder can be manufactured by mechanical treatment with several purification processes
Low grade manganese sourced from Wasagu manganese hill deposit in Kebbi state was characterized to contain 25.36% Manganese, alongside some other associated minerals, with silica and iron as the major impurities
Energy recovery may represents an attractive option for sustainable disposal of solid olive mill waste. The high heat value, low cost and its availability promoted and encouraged the using of this material for heating
Porous asphalt concrete which also referred as permeable pavement is the pavement that allows water to infiltrate through its surfaces which could support the skid resistance at heavy rainfall areas.
This paper deals with thermal impact analysis on biological tissues. Human tissues are illuminated by laser rays. We adopt an exponential-temperature-dependence of the heat conductivity.
The chemical resistance or durability of Portland cement pastes (PS0) incorporating Saw dust ash (SDA) against the attack of 4% MgSO4 solution up to 12 months were investigated.
The chemical resistance or durability of Portland cement pastes (PS0) incorporating Saw dust ash (SDA) against the attack of 4% MgSO4 solution up to 12 months were investigated.
Power Line Communication (PLC) is a technology that uses existing power cables as the transmission medium for information and data exchange. In automatic PLC systems, such as vehicle assembling and automatic meter reading, effective impedance matching
The present work deals about composite rocks in which basalt has emerged as a contender in the fiber reinforcement of composites. This examination is directed to execution of copper powder as fine aggregate reinforced basalt fiber and chopped strand mat
The Rapti River is meandering river, consisting of a variable number of meander bends, which change their locations and sizes each year. Understanding river behaviour in u/sand d/s of hydraulic structures help in their proper planning, design, and maintenance
