The ability to accurately evaluate hydrokinetic turbine concepts at small-scale in experimental facilities is important for the development of new devices. Problems introduced by working at lab-scale include operation in a transitional Reynolds number regime and cross-sectional blockage. These factors are shown to influence performance characteristics of a helical cross-flow turbine tested over...

background and objectives: medical ethics has a long history worldwide; although it is a new scientific discipline. also, it is not just for a specific single group or discipline in a treatment team; it is the entire medical community who benefits from it. given the importance of this issue, this study examined the viewpoints of the specialist physicians in qom province on the most common issue...