The modulation principle of GMSK signal and a method for generating the quadrature GMSK signal is introduced that is called direct decomposing modulation phase(DDMP).

This article uses the direct double decomposition method to synthesis zinc gluconate,through adding ethyl alcohol to reduce its watery solution solubility and to obtain its crystal.

In order to control NOx pollution from combustion flue gas,the experimental study on direct catalytic decomposition of flue gas by magnesia base catalyst made by mixed method was carried out.

The calculation of critical load of a compressive bar by direct method based on variation principle;

The formulas of the natural frequency, critical velocity and critical pressure were established by means of direct method.

To study numerical solution of the linear equations,the article presents direct method,Jacobi iterate method and Gauss-seidel iterate method to approximately calculate,and has given its process in MATLAB.

Based on transfer matrix method(TMM)and virtual boundary element method(VBEM),proposed a direct solution to 2-D sound-structure interaction problem under harmonic excitation is proposed.

Based on the theory of variational inequality,a direct solution method of one-di.

According to the regular form of the tiles of journal bearings this paper presents a direct solution method for the finite element variational inequalities arising from fluid lubrications.