Beamforming algorithm in the minimum variance distortionless response beamformer and give a diagram of conventional beamforming and MVDR two waveforms.
Results The total variance rate of cystic duct was 78.6% of which length was 41.7%,postition was 35.7%,direction was 52.4%,collateral or circumambient with common hepatic duct was 47.6%.
Those enterprises keep books at planned cost or norm cost in daily accounting shall account for the coit variances and adjust planned cost (or norm cost) into historical cost periodically.
By comparing the trading volume, price, variance of return and beta of the underlying stocks before and after the warrants issue, the research analyzes the microeffect of the warrants issue event.