This paper, using theoretical method of second quantization, obtains more brifely the form of Fermion pairs energy level, and calculates energy of Cooper pair. 应用二次量子化方法,较为简捷地得出费米子对的能级公式,并计算了超导电子对的能量。
Objective To discuss the relationships between quantization indexes of middle cerebral artery ( MCA) level segment ( M1) calcification and hemodynamic features. 目的探讨大脑中动脉(middlecerebralartery,MCA)水平段(M1)钙化的量化指标与血流动力学的关系。
Multi-bit phase quantization RF memory and its spurious level 多比特相位量化数字射频存贮技术及寄生电平
The focus is on properties arising from the energy quantization and the resulting two-dimensionality of the electron system The selection of topics is based on the degree of physical interest and the level of experimental activities. 注意力集中于电子系统的能量量子化以及二维特性。专题的选择依据我们的物理兴趣和实验工作所达到的水平。
Losscurve of A/ D quantization level and SNR at certain condition of SNR is given. 给出了信噪比一定的条件下A/D量化电平和信噪比损失曲线。
It is shown that in comparison to the fully random quantization, the appropriate random can be used to reduce the sidelobe level of antenna arrays without increasing the types of the transmit-receiving modules. 与振幅的完全随机量化相比较表明,在不增加收发组件品种的前提下,这种方法可进一步降低天线的副瓣电平。
But the hypothesis is not always valid especially for the countering error induced by the RLG counter with only integer outputs where the quantization level is rather large. 接着指出白噪声假设并不总能成立,特别是对于由计数器只能计整数引致的量化误差(特称为计数误差),由于量化间隔很大,这一假设通常不能成立。
In order to reduce the feedback overhead, a quantization method is proposed by quantized value used to indicate the modulation level instead of the full values of CQI in the second chapter, and the achievable spectrum efficiency shows no loss compared with the perfect case. 为了减少系统的反馈开销,第二章提出了一种以CQI量化比特表示调制方式的量化方法,与理想状态相比较,证明了其无损性。