1. Analyze optical field distortion of CTIO 0.9-m CCD camera
   
2. Build Parallaxes Data Reduction Pipelines
   
3. Measure Parallaxes, Photometry and Spectroscopy of High Proper Motion and Nearby Stars
   
4. Search High Proper Motion Stars in the Southern Sky
   

Cool Subdwarfs

1. Measure Masses and Constructing Empirical Mass-luminosity Relation of Low Metallicity Stars
   
2. Study Spectroscopic Features and Metallicities for Cool Subdwarfs
   
3. Study Multiplicity of Cool Subdwarfs
   
4. Determine Cool Subdwarfs' Ages
   

Others

1. Study Local Supergiants in Galaxy
   
2. Measure White Dwarf Dynamical Masses
   
3. Study Stellar Multiplicity in Exoplanet Systems
   
4. Model Planetary Nebulae Radial Brightness Profile