In the high power loudspeaker design, how to design the lead wire diameter of a voice coil is a key problem.

MIT logging tool is able to get 40 ultra-sensitive CAL curves,and detect the locations of casing damages with an inclinometer of mercurial sensor.

In view of existing hairiness and scratch in the yarn black board,through some methods such as smoothness processing,threshold value division and image repairing,can come up with a clear digital image without noise points and exactly measure the yarn diameter.

In this paper,we analyze development and defects of image processing techniques and provide some recognition algorithms to detect the structural parameter in woven fabrics,such as warp and weft densities,yarn diameter,linear density of the yarn and yarn twist angles using Digital Image Processing and realize automatically function of system with mixed program VB and MATLAB.

The inversion method of velocity in the stratified medium using the ray path;

Influence of smooth operator on travel-times and ray paths of seismic waves;

Segmentally-iteratlve operation, starting from any given initial ray path, isdone to obtain reflaction (refraction) Points on interface-.

Effect of curve radius and axle load on friction of wheel/rail

Discussion on the effect of curve radius on curve girder bridge design

The curve radius,axle load and running speed are main influence factors of the wear of wheel/rail.

On-tracking control of tractor running along curved paths;