in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

Background and aim: Musculoskeletal disorders in assembly line, is caused by poor physical conditions, repetitive motion, and psychological factors. This study aims to evaluate the workload and its association with the prevalence of wrist disorders were carried out in the assembly workers of a manufacturing industry. Methods: In this cross-sectional study was conducted among 120 female workers...