本项目开发了一种侦测AC交流电的新型回路,通过采集AC输入端的电压值与三端可调基准稳压器TL431内部基准电压比较后,输出电平控制P型MOS^([1])导通与关闭,从而达到控制光耦[2]导通与关闭,继而在次级侧输出ACD(Alternating Current Detec...本项目开发了一种侦测AC交流电的新型回路,通过采集AC输入端的电压值与三端可调基准稳压器TL431内部基准电压比较后,输出电平控制P型MOS^([1])导通与关闭,从而达到控制光耦[2]导通与关闭,继而在次级侧输出ACD(Alternating Current Detection)信号给主板。当AC断电时,主板未接收到ACD信号,则能够立即关断24V,来达到消除OLED残影及提升效率的目的。展开更多
High-frequency data analysis is a new research field in financial econometrics. This paper reviews main results about empirical market and econometric modeling of high-frequency data, and argues about its prospect and...High-frequency data analysis is a new research field in financial econometrics. This paper reviews main results about empirical market and econometric modeling of high-frequency data, and argues about its prospect and importance in Chinese financial market.展开更多
The measure of market liquidity is very important for the risk manager and institutional traders conducting high volume trades in the stock market.This paper used the new statistic tool,VENT,which directly measures th...The measure of market liquidity is very important for the risk manager and institutional traders conducting high volume trades in the stock market.This paper used the new statistic tool,VENT,which directly measures the depth of the market corresponding to a particular price deterioration,to make a short time dynamic ACD model which measuring the relation about the liquidity change of three stocks in the stock market.展开更多
文摘本项目开发了一种侦测AC交流电的新型回路,通过采集AC输入端的电压值与三端可调基准稳压器TL431内部基准电压比较后,输出电平控制P型MOS^([1])导通与关闭,从而达到控制光耦[2]导通与关闭,继而在次级侧输出ACD(Alternating Current Detection)信号给主板。当AC断电时,主板未接收到ACD信号,则能够立即关断24V,来达到消除OLED残影及提升效率的目的。
文摘High-frequency data analysis is a new research field in financial econometrics. This paper reviews main results about empirical market and econometric modeling of high-frequency data, and argues about its prospect and importance in Chinese financial market.
文摘The measure of market liquidity is very important for the risk manager and institutional traders conducting high volume trades in the stock market.This paper used the new statistic tool,VENT,which directly measures the depth of the market corresponding to a particular price deterioration,to make a short time dynamic ACD model which measuring the relation about the liquidity change of three stocks in the stock market.
