The source and grammaticalization of the temporal adverb zhengzai (正在);

"Yng,Zheng,Ruo and yong" are characters in the line statements on oracle bone inscriptions found in Hua Dong.

The article understands zhen(贞)as zheng(正) and has the first year of the Han Dynasty as the standard year of calculation and provides answers to relevant basic questions.

In the systems of thought of Confucius,the justice mainly includes these contents and meaning such as righteousness,positive,keep.

The SPOT HRG images ortho-rectification experiment and precision analysis without GCPs;

Ortho-rectification of Spot5 Remote Sensing Image Based on the 1∶10000 DEM;

Ortho-rectification of QuickBird Image Based on ERDAS Software

Research on orthorectification of IKONOS single photo based on rational function model;

Distributed orthorectification of high resolution satellite imagery based on middleware

At last massive orthorectification experiments have been done with these three mode.

Furthermore, a high-accuracy algorithm of heading error compensation is presented, which is based on the compass deviation decomposition and the datum axis of orthogonal correction.

The Facture of 1:10000 DEM and Orthorectification of SPORT-5 Satellite Data;

The terrain in half of the project is mountain and hill,and hypsography is distinct,so the geometric distortion caused by hypsography is difficult to eliminate using conventional geometric correction,and then orthorectification is needed.

The results indicated that both the plane-rectification accuracy and the orthorectification accuracy of GCPs collected from airphotographs were higher than the plane-rectification accuracy and the orthorectification accuracy of GCPs collected from relief maps.