flow in the first two-stage of v 94.2 gas turbine is simulated numerically. in this turbine, the second stator is clocked relative to the first stator to different positions. steady-state analysis was carried out by varying the circumferential relative position of the consecutive stator vanes to study the effects of the clocking on turbine performance. a density based compressible inviscid flow...

The concerned study pertains to the development of a new stochastic model for reliability analysis linear consecutive-k-out-of-n: G system, where k>n2. In developed model, system may collapse as result common cause failure or hardware in its units. has exponentially distributed rates, and case breakdown, it is repaired with copula method. been examined through supplementary variable techniqu...

BACKGROUND We investigated circadian changes and effects on mood, sleep-related hormones and cognitive performance when nurses worked consecutive night shifts in a rapidly rotating shift system. Daytime cognitive function, sleep propensity and sleep-related hormones (growth hormone, cortisol, prolactin, thyrotropin) were compared after participants worked two and four consecutive night shifts. ...