We study the influence of particle shape on evolution breakage process taking place inside rotating cylinders. Extensive dynamics simulations into account granular flow, breakage, and polygonal shapes were carried out. find that rate is faster in samples composed initially rounder particles. The analysis active flowing layer thickness suggests for particles a relatively lower dilatancy higher c...

We consider the motion of a viscous compressible and heat conducting fluid confined in gap between two rotating cylinders (Taylor–Couette flow). The temperature is fixed but not necessarily constant. show that problem admits time-periodic solution as soon ratio angular velocities rational number.

A new HIGEE device-rotating zigzag bed (RZB) was developed in the context of process intensification. The RZB is structurally featured by a combinatorial rotor of one series of baffles attached to a rotating disk with another series to a stationary disk. The novel structure of the RZB determines its many advantages over the other HIGEE devices. The RZB is free of dynamic seal, capable of interm...

This paper deals with the problem of development of the mathematical model of a micro coaxial helicopter using hybrid method of analytical and experimental approach. An analytical mathematical model of micro coaxial helicopter has been derived with the consideration of dynamics of rotating parts to the rigid body dynamics. Pre-flight simulation was carried out based on the derived mathematical ...

BACKGROUND The purpose of this study was to compare surgically induced astigmatism (SIA) between one-handed and two-handed cataract surgery techniques. METHODS Eighty-eight eyes of 44 patients with no ocular disease other than cataract, who underwent cataract surgery by a single surgeon, were selected for this study. Cataract surgery was performed by coaxial phacoemulsification and intraocula...

A new method for fast diameter measurement of coaxial holes is studied. The paper describes a multi-layer measuring rod that installs a single laser displacement sensor (LDS) on each layer. This method is easy to implement by rotating the measuring rod, and immune from detecting the measuring rod's rotation angles, so all diameters of coaxial holes can be calculated by sensors' values. While re...