Calibration of Pointing Accuracy with Electro optic Phototheodolites by the Star Arc length;

Inequalities and Extremum Problems for Convex Bodies and Star Bodies;

Performance analysis for spacecraft shield structures against meteoroid and space debris;

Most of the spacecrafts are suffering from the bad space environment, and the space debris, included meteoroid and orbital debris, imperiled the spacecrafts most.

Star volume is a contemporary stereological parameter reflecting the (mean) local size of an arbitrary structure (especially an irregular structure), and can be unbiasedly estimated by measuring the point-sampled intercepts.

On the process of star identification,the tradition al-gorithm is improved and a suitable alogrithm of pixel labeled in binary image for star image is presented.

Evolution of Lyα Forest in High-resolution Spectroscopy of QSOs;

The Relation between the Cerenkov Line Radiation of Superlight Electron and the Emission-Line Spectra of QSOs;

The Periodicity in Redshift Distribution of QSOs;