polarization charge
2.The paper interprets alternant polarization phenomenon of even alternant hydrocarbons by discussing charge density on every position of even alternate when it is polarized using perturbational molecular orbitals(PMO).
3.Abstract: The paper interprets alternant polarization phenomen on of even alternant hydrocarbons by discussing charge density on every position of even alternate when it is polarized using perturbational molecular orbitals( PMO).
4.Complex domain contrast is related not only to the polarization field but also to the arrangement of domains in grains, the charge disfigurement and the orientation of the grains in the film. After the PT/PZT/PT thin films were polarized, the surface potential is changed along with the free charge of the surface voltage-applied points producing. the surface potential attenuation was observed after 3 hours.
5.This article solves some theoretical problems of electrostatic suspension based on optoelectronic feedback control.The mechanism of electrostatic induction of conductive suspended objects (CSO) and electrostatic polarization of insulting suspended objects (ISO) was theoretical discussed.The equations of charge density on the surface of suspended object caused by electrostatic field were developed.We further provided the equations describing the quantitative relationship of electrostatic forces verses the electrode voltages,the electrode area,the suspending gap,and the electric characteristic of suspended object.These equations show that the inducted surface charge density of CSO is greater than the polarized surface charge density of ISO,as a result,the electrostatic force acting on CSO is larger than that acting on ISO,as already proved by the experimental results of measured electrostatic forces.This work provided the theoretical equations and the mathematical models for effectively realizing the optoelectronic feedback control of electrostatic suspension.
6.The passage introduces the square wave pulse electric methods,conducts transient experiments to the homemade minitype Zn-air battery,measures the ohm polarization of the battery quickly and accurately,calculates the ohm polarization inner resitance of the battery,and offers a method to decrease the ohm inner resistence. All those content is to clirect the selection of the material and technics in the battery manufacture and the high-effucuebcy methods of charge-discharge in the usury of battery.
