The study showed that the property of grain triboelectrification relates to grain moisture, friction velocity, dielectric constant and friction material.
The results show that high pinning field could be obtained with appropriate thickness and magnetocrystalline anisotropy constant of cell boundary phase.
Various substance has very small autoprotolysis constants which,however,has more large difference,so that the amphoteric solvents are found more wide application in titrimetric analysis.
Kinetic constant and apparent activation energy of iodine catalytic reaction of ascorbic acid oxidation Naphth Green B have been determined by spectrophotometric method.
As both insulator and energy storage media, de-ionized water combines the advantages of high relative permittivity(is about 80), self repairability, low cost and ease of handling.
According to the current theory,time is considered as the major variable while interest rate has been supposed as constant which,however is uncomplying with the realistic society economy system.
When the illuminance rose, the photic decomposition rates of the natural anthocyan pigments rose as well, but there was no linear relation between photic decomposition rate and illuminance.