conclusions because 66% of students were anti-hav antibody negative and they will work as health care workers in future, our study suggest vaccinating all students accepted at aja university of medical sciences. results of total 270 students, 30 were female. their age ranged between 18 and 30 years old with the mean age of 20.58 years and just 34% of students had positive level of anti-hav anti...

Thermal-induced two-phase flow instabilities could badly slow the runtime performance of systems, such as boiling water reactor core, and even endanger safe operation. Hence, many researchers have carried out numerous researches on instability characteristics, but few publications cover effects local throttling in open-channel systems coolant rod bundle subchannel with spacer grids nuclear core...