On the circular curve, lateral acceleration affects comfort. On the spiral, both lateral acceleration and jerk affect comfort.  The determination of maximum curving speed on the basis of lateral acceleration only is not critical because the lateral acceleration is proportional to the square of speed whereas jerk is proportional to cubic power of speed. The maximum speed on a curve is thus signi...

background: human error is the most important cause of occupational and non-occupational accidents. because, it seems necessary to identify, predict and analyze human errors, and also offer appropriate control strategies to reduce errors which cause adverse consequences, the present study was carried out with the aim of identifying human errors while operating meat grinder and offer suggestions...

multileaf collimator (mlc) is among the radiation field shaping systems used for conformal radiotherapy and intensity modulation radiation therapy techniques. the mlc system that has been designed and fabricated in this study includes 52 leaves, 52 stepper motors, 2 dc motors, 16 programmable logic controllers (plcs) and one human machine interface (hmi). this system can be mounted on conventio...

â  â  â  pragmatic dimension of the contemporary language and principles of curriculum development â â â â â â â  dr. boulaares djemai * â  â  abstract â â â  textbooks have been very significant and valuable for our precedents because education is very significant and through it, everybody can achieve fulfillment. knowledge and its application can be achieved through the person’s interaction...

the main purpose of this research is design a competency model for curriculum planners. analysis - inductively method with of the curriculum planner’s expert’s viewpoint was used. to determine the competency model for curriculum planner’s 5-stage methodology byham & moyer was used. in the first phase was reviewed subject literature and academic resources. curriculum experts were interviewed in ...