The reflected field of pulsed cylindrical waves from a liquid-solid interface is studied by the numerical method and the experimental method. The reflected fiel
Wolbachia are a group of Rickettsia-like bacteria which parasitize the cells of a wide range of anthropoid. These microorganisms are associated with the reprodu
An optimization method for the geometry of large van der Waals system was suggested by discussing parallel dimer of benzene. The key of this method is to place
The periodicity of a general matrix modular transformation is discussed, and a simple proof of a sufficient and necessary condition that a matrix transformation