Starting from the Rayleigh diffraction integral and using analytic signal complex representation, the propagation equation of ultrashort pulses in free space has been derived in the near-field beyond the paraxial approximation, which is consistent with the paraxial results in previous literatures if the paraxial approximation is made. 从瑞利衍射积分公式出发,利用复解析信号法推导出了等衍射长度超短脉冲高斯光束在自由空间近场非近轴传输方程,在近轴近似条件下与文献已有的近轴结果一致。
The substation equipment is various, signal complex, difficult, existing integrated wiring quantity is big, the high cost and the maintenance difficulties disadvantages. 现有的变电站通信多是通过有线网络进行信号的采集、传输和发送,且变电站设备繁多,信号复杂,存在综合布线难、工程量大,成本高、维护困难等弊端。
It connects with the Integrin and assembles other molecules to the conjunction site forming signal complex. The signal complexes then transduce the extracellular signal to the cytoskeleton. This mediates the cell adhesion and migration. 它与整合素受体相连接并聚集其它分子于连接位点,形成信号复合体,将细胞外信号向细胞骨架传递,调节细胞的粘附、迁移。
The key problem of the loose parts monitoring system for primary loop of pressurized water reactor is how to extract loose parts impact signal from complex background noise. 压水堆一回路松动件状态监测系统的关键环节在于如何从复杂背景噪声中提取松动件冲击信号。
Lung sound signal forming complex but contains a wealth of physiological and pathological information. 肺音信号产生机理复杂却包含有丰富的生理和病理学信息。