in this study, the stability problem of a circular orthotropic cylindrical shell under the effect of anaxial compression varying with a power function of time is considered. at first, the modified donnell typedynamic stability and compatibility equations are obtained using love’s shell theory. applying the galerkinmethod and rayleigh-ritz variational techniques to these equations and taking the...

In order to develop a kind of APAP double-release pellet capsules, which was prepared with the manual filling method, immediate and sustained release pellets certain proportion were by fluidized bed coating extrusion spheroidization process, respectively. It founded that both immediate-release sustained-release had smooth round surfaces. The particle size distribution ranged evenly from 16 35 m...

Abstract Due to the eutectic reaction, Mg 2 Si phase is inclined creating an unfavorable fishbone shape at low solidification rates. This can significantly degrade mechanical characteristics and become main barrier practical application of Mg-Si based alloy. It regarded that isothermal semi-solid treatment efficient technique modulate fishbone-shape phases in alloys. In this work, a new type Mg...