Hybrid FDTD-PWS method for focal field analysis of lens antenna at millimeter-wave band;

For large reflector antenna, it is very important to analyze the focal field which is applied to design and derive suitable excitation for the feed or array feeds.

Analysis of sphere measurement errors for LAMOST focal plane;

A focal plane imaging is limited in catching object when spot-focusing horn lens antenna is applied in ballistic wake microwave interferometer.

This paper has introduced a Looped Parallel Heatpipe s structure and characteristic,and a practical application of Looped Parallel Heatpipe which used in focus surface s heat dissipation of astronomical telescope.

This paper analyzes the correlations among the demands of coke market,Chinese economic growth,steel industry growth,coke price,policy,and the technical progress,etc.

Because of being drived by profits,some enterprises produced coke from primitive ovens and modified primitive ovens and even blindly and repeatedly built machinery ovens in low level,the coal gas escaped,the chemical engineering products no recovered and the management was losses,and then brings about austere present coke market.

According to the coke performance both at home and abroad, analyzes coke market situation, points out that low level coke ovens shouldn't be constructed blindly though the coke market situation keeping on tight at present, neither coking capability nor coki ng coal providing can meet the needs of increasing demand of coke domestic.

On Engineering Practices of Measuring Antenna Pattern by Use of the Near Field Focusing Method;