spherical particle
5.The coal ash is one kind of industry waste material , but owing to its form under the high temperature effect and its possession grey nature of volc ano, and with the appearance of its unique smooth spherical particle and through doing mixed material and mixed material together, it can improve some capabilit ies of cement and concrete.
6.From the solution of Laplace equation under the boundary conditions,the equivalent dielectric constant of inhomogeneous dielectric spherical particle embedded in a matrix is investigated. The general formulas of equivalent dielectric constant of multi-shell dielectric sphere are given. The differential equation of equivalent dielectric constant of dielectric sphere with graded shell,whose dielectric constant varies with radius is derived.
7.In this paper , identification of the phase composition of micro-sphorical particae of uraniferous lignite ash was performed by means of four methods , i.e. , the liquid nuclear emulsion microradio-graphy , X-ray diffraction analysis with Debye camera , electron-ns probe analysis of microrange composition , and a microscope-viewe. It has been proved that the spherical particle exists in the form of U1-xO2 , and Fe3O4
8.ON THE INFLUENCE OF ACOUSTIC VIBRATION ON THE REGIME OF AIR MOTION IN THE BOUNDARY LAYER OF SPHERICAL PRECIPITATION PARTICLE FALLING
