The paper uses the proportion of zero-return days model to analyze stock market synchronous behaviors for 11 sample counties. It is found that the zero-return measure of stock synchronicity is higher for some emerging...The paper uses the proportion of zero-return days model to analyze stock market synchronous behaviors for 11 sample counties. It is found that the zero-return measure of stock synchronicity is higher for some emerging economies than the developed economies though the result is not statistically significant. In addition, panel data analysis indicates somewhat positive and negative correlation between the zero-return measures with the explanatory variables. The findings raise question about the reliability of the proportion of zero-return days measure and its capability to capture stock market synchronous behavior.展开更多
本文提出了一种新型高带宽密度、低功耗的面向片上(Die to Die,D2D)互连的7阶相关非归零(Non-Return-to-Zero,NRZ)编码接口电路结构.为了进一步提高5阶相关NRZ编码在D2D互连中的信噪比和带宽密度,设计了基于发射矩阵和接收矩阵的编解码...本文提出了一种新型高带宽密度、低功耗的面向片上(Die to Die,D2D)互连的7阶相关非归零(Non-Return-to-Zero,NRZ)编码接口电路结构.为了进一步提高5阶相关NRZ编码在D2D互连中的信噪比和带宽密度,设计了基于发射矩阵和接收矩阵的编解码电路.基于发射矩阵,在发射端设计了基于电压模驱动的编码电路,有效降低了功耗;基于接收矩阵,在接收端设计了基于有源可调电感的解码均衡电路,提高了通信速率.同时,为了解决接收端时钟偏斜问题,还设计了误码校准电路.该接口电路采用28 nm CMOS(Complementary Metal Oxide Semiconductor)工艺设计,核心面积为3 mm^(2),可适用于10~50 mm的片上互连.后端仿真结果表明,在奈奎斯特频率为20 GHz、信道插损为-8 d B的条件下,接收端最窄眼宽为0.45 UI,误码率小于10^(-15),能耗效率为1.2 p J/b,带宽密度为448 Gbps/mm.展开更多
采用半导体光放大器 (SemiconductorOpticalAmplifier,SOA)的分段模型 ,对基于SOA光纤环镜的非归零 (Non Return to Zero ,NRZ)信号时钟分量提取进行了数值模拟 SOA光纤环镜可以将NRZ信号转化为包含其时钟分量的伪归零 (Pseudo Return ...采用半导体光放大器 (SemiconductorOpticalAmplifier,SOA)的分段模型 ,对基于SOA光纤环镜的非归零 (Non Return to Zero ,NRZ)信号时钟分量提取进行了数值模拟 SOA光纤环镜可以将NRZ信号转化为包含其时钟分量的伪归零 (Pseudo Return to Zero ,PRZ)信号 给出了2 .5Gb/s下的模拟计算结果 ,并与实验结果进行了比较 ,进一步给出了展开更多
文摘The paper uses the proportion of zero-return days model to analyze stock market synchronous behaviors for 11 sample counties. It is found that the zero-return measure of stock synchronicity is higher for some emerging economies than the developed economies though the result is not statistically significant. In addition, panel data analysis indicates somewhat positive and negative correlation between the zero-return measures with the explanatory variables. The findings raise question about the reliability of the proportion of zero-return days measure and its capability to capture stock market synchronous behavior.
文摘本文提出了一种新型高带宽密度、低功耗的面向片上(Die to Die,D2D)互连的7阶相关非归零(Non-Return-to-Zero,NRZ)编码接口电路结构.为了进一步提高5阶相关NRZ编码在D2D互连中的信噪比和带宽密度,设计了基于发射矩阵和接收矩阵的编解码电路.基于发射矩阵,在发射端设计了基于电压模驱动的编码电路,有效降低了功耗;基于接收矩阵,在接收端设计了基于有源可调电感的解码均衡电路,提高了通信速率.同时,为了解决接收端时钟偏斜问题,还设计了误码校准电路.该接口电路采用28 nm CMOS(Complementary Metal Oxide Semiconductor)工艺设计,核心面积为3 mm^(2),可适用于10~50 mm的片上互连.后端仿真结果表明,在奈奎斯特频率为20 GHz、信道插损为-8 d B的条件下,接收端最窄眼宽为0.45 UI,误码率小于10^(-15),能耗效率为1.2 p J/b,带宽密度为448 Gbps/mm.
文摘采用半导体光放大器 (SemiconductorOpticalAmplifier,SOA)的分段模型 ,对基于SOA光纤环镜的非归零 (Non Return to Zero ,NRZ)信号时钟分量提取进行了数值模拟 SOA光纤环镜可以将NRZ信号转化为包含其时钟分量的伪归零 (Pseudo Return to Zero ,PRZ)信号 给出了2 .5Gb/s下的模拟计算结果 ,并与实验结果进行了比较 ,进一步给出了
