Axisymmetric deformation of varying thickness composite cylindrical shell with various end conditions

A varying thickness composite cylindrical shell subjected to axisymmetric deformation has been analyzed by the finite element displacement method. The end conditions considered are clamped-clamped, clamped-free, simply supported-simply supported. It is shown that, by properly selecting the thickness variation of the shell wall, both stresses and deflections can be reduced considerably in most cases.     

Eccentric operation of conical hydrostatic thrust bearings

A theoretical study of the behaviour of capillary-compensated annular recess conical hydrostatic thrust bearings under conditions of eccentricity and rotation is reported. The influence of aspect ratios, cone angles and resistance ratios on the static and dynamic characteristics is discussed.     

Effect of changing the unconditioned stimulus on appetitive blocking.

In four experiments we examined the effects of the unconditioned stimulus (US) on appetitive blocking. In Experiments 1{a}, 1{b}, and 2 we established that substituting food for water, or water for food, in the compound stage did not attenuate blocking relative to groups that received the same US throughout conditioning. Experiment 3 showed that satiation with the US used prior to compound conditioning with a different US does not affect blocking. Experiment 4 revealed that changing the location of US delivery, as well as the quality of the US, also leaves blocking unaffected. It is suggested that these results demonstrate that blocking occurs, provided that there is no change in the affective properties of the US. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Flow and boundary layer development in straight core annular diffusers

This paper is mainly concerned with a numerical study of flow and boundary layer development in straight core annular diffusers using a finite difference method and marching integration technique. To this end, predictions have been made for four cone angles. Velocity profiles, displacement thickness, momentum thickness, shape factor, kinetic energy flux parameter, pressure recovery coefficients and effectiveness have been computed. The predicted pressure recovery coefficients have been compared with an experimental investigation. It is found that the agreement between predicted and experimental results is quite satisfactory.