We propose a spatial three-degree-of-freedom (DOF) parallel mechanism combining two degrees of rotations and one degree of translation to support the active ref
The sizes of astronomical surveys in different wavebands are increas-ing rapidly. Therefore, automatic classification of objects is becoming ever moreimportant.
For LAMOST,the largest sky survey program in China,the solution of the problem of automatic discrimination of stars from galaxies by spectra has shown that the