As the nature of many materials handling tasks have begun to change from lifting to pushing and pulling, it is important that one understands the biomechanical nature of the risk to which the lumbar spine is exposed. Most previous assessments of push-pull tasks have employed models that may not be sensitive enough to consider the effects of the antagonistic cocontraction occurring during comple...

Heavy metal pollution by natural factors is a world-wide phenomenon. Release of large quantities of heavy metals without handling proper processes that could decrease the concentration of such a material is a hassle that makes strains resistant to these heavy metals apart from entering into human food chain. In this research, wastewater of four firms in Guilan province such as Foolad, Risandegi...

Musculoskeletal disorder (MSD) is one of the major health problems in mechanical work especially in manual handling jobs. Muscle fatigue is believed to be the main reason for MSD. Posture analysis techniques have been used to expose MSD risks of the work, but most of the conventional methods are only suitable for static posture analysis. Meanwhile the subjective influences from the inspectors c...

Due to the flexibility and adaptability of human, manual handling work is still very important in industry, especially for assembly and maintenance work. Well-designed work operation can improve work efficiency and quality; enhance safety, and lower cost. Most traditional methods for work system analysis need physical mock-up and are time consuming. Digital mockup (DMU) and digital human modeli...

INTRODUCTION In Western Africa, women continue performing heavy physical work that includes carrying loads on their heads for domestic and commercial tasks during pregnancy. Due to important anatomical changes such as a higher trunk mass and stretching of the abdominal muscles, the loads on the spine and lower extremities may increase during lifting/lowering tasks. Pregnant women may adapt to t...

In radio access networks, the base stations’ (BSs) power consumption does not merely depend on the traffic loads within its coverage. The auxiliary devices, especially the cooling system in BSs, contribute to significant energy exhaustion. As the traffic loads fluctuate spatially and temporally, the BSs consequently suffer from heavy energy wastage when the traffic loads of their coverage are l...

Over the past twenty years; road traffic (both passenger and freight) has grown significantly in Pakistan. Higher axle loads and repetitions have resulted in premature rutting of flexible pavements. Rutting, in the form of shear flow is a typical distress that mainly attributed to increased tire pressure, high temperature and heavy axle loads. Consequently, National Highway Authority (NHA), Pak...

Nursing aides are particularly susceptible to manual handling injuries because they have the primary responsibility for heavy lifting. The aim of this study was to determine why a specific group of nursing aides have the highest manual handling injury rate in their hospital. The study investigated the adequacy of the manual handling training program, knowledge of manual handling, mechanical aid...

With resistance exercise, greater intensity typically elicits increased energy expenditure, but heavier loads require that the lifter perform more sets of fewer repetitions, which alters the kilograms lifted per set. Thus, the effect of exercise-intensity on energy expenditure has yielded varying results, especially with explosive resistance exercise. This study was designed to examine the effe...

Until recently most research into parallel databases has focussed on relational database systems. Nevertheless, there is growing interest in more powerful alternative systems such as deductive databases. Several rule handling strategies have been developed to incorporate deductive capabilities into parallel database systems. However, in a shared-nothing environment, the performance of a rule ha...