Objective To introduce the display principle and clinical application of PET-CT.

Cooperation mechanism under asymmetric information of the retailer s investment scaling parameter was studied and compared to the cooperation mechanism under the symmetric information based on principal-Agent theory and revelation principle.

The following is the description of a model {p*, y}, designed on the revelation principle, in which a collusive arrangement comes into being with firms of different costs.

The revelation principle is a basic tool in mechanism design.

Research on imaging principles of a silver superlens;

Numerical study the imaging principle of photon scanning tunneling microscope;

This article describes briefly the imaging principle,imaging technology,as well as the relevant technology and advantages and disadvantages of MTCP.

Based on the image theory, the oscillation of a cylinder in front of two vertical walls intersecting normally in the otherwise static water is transformed into the oscillating problem of four symmetrically arranged cylinders.

The method for evaluation to acoustic scattering from object near an interface has provided based on Kirchhoff approximation combined with image theory.

To derived the directivity formula of the built_up sound source in a limited space is derired based on principle of mirror image and is simulated with Matlab.