OBJECTIVE We utilized job safety analysis (JSA) and hazard identification for work accident prevention in Para rubber wood sawmills, which aimed to investigate occupational health risk exposures and assess the health hazards at sawmills in the Trang Province, located in southern Thailand. METHODS We conducted a cross-sectional study which included a walk-through survey, JSA, occupational risk...

Body reactions during chain saw work were studied in 14 subjects. The subjects divided into three groups (control, sulpiride, and propranolol) successively cut down logs with a chain saw for seven minutes. The start of the sawing led to a pronounced increase in heart rate which persisted during the sawing. The groups taking sulpiride and propranolol showed a smaller increase in heart rate compa...

The article deals with possible estimates which would make the choice of the diamond wire sawing plant easier. Based on the principle law of friction of thin elastic bodies, the estimate procedure intended for the choice of a knew plant, and the estimate procedure for verification of the known plant were established. Orientation and detailed way of estimating the pulling force of the diamond wi...

In the current study, experiments were carried out to investigate structural performance of reinforced concrete (RC) beams with a self-healing cover zone. The zone consists 1.5-cm-thick layer bacteria-embedded strain hardening cementitious composite (SHCC) for combination crack width control and healing. aim is bring together two emerging technologies (i.e., strain-hardening) that show great po...

This study aimed to evaluate and better understand the mechanical crystalline responses of polycrystalline silicon sawn by diamond wire sawing. To simplify multi-wire sawing kinematic, an endless saw with a single looped welded was used. The cutting speed feed rate were varied in order characteristics surface morphology, roughness, subsurface damage. analysis brittle-ductile transition residual...