Two types of computer input devices, a conventional mouse and a roller bar one, were studied in terms of muscular activity in m. trapezius dexter, m. deltoideus anterior dexter and m. extensor digitorum dexter, and comfort rating. Fifteen university students and employees participated in this study. The order of the devices was random. While a task was performed, electromyography (EMG) data wer...

The operating costs of breaking coal particles into fine powder, to achieve optimum combustion for the boilers in a power plant, are made up input carry on an energy intensive comminution mechanism and overcome friction losses within pulverising machines. also include cost replacement processing system’s components due wear. This study presents development application attrition test machine tha...

Post-build rolling can mitigate residual stress (RS) and distortion in large-scale components built by wire arc additive manufacturing (WAAM). In this study, based on numerical simulations that considered both WAAM deposition vertical rolling, the mechanisms of rolling-enabled mitigation RS a WAAM-built steel wall are elucidated. The influences process configuration condition, such as roller de...

A novel method for large-scale culture of anchorage-dependent cells is described. Culture vessels were constructed by using roller bottles and Pyrex tubing. Parallel glass tubes, equally spaced by silicone rings and inserted into the roller bottles, provided an increased culture area. The roller bottles were fitted with a second opening for medium recirculation. Culture vessels of 1,000-, 4,000...