Two new chiral stationary phases, 2,3-di-O-acetyl-6-O-trimethylsilyl-β-cyclodextrin (DATBCD)and 2, 6-di-O-trimethylsilyl-3-O-acetyl-β-cyclodextrin (DTABCD), w
The dynamical theory was utilized to probe into the law of the excited response of granular ores generated by the exciting action of exciter and the influence o