单词Bessel
un.: 贝塞耳
网络: 贝塞尔；贝赛尔；贝塞儿
贝塞耳(Friedrich Wilhelm,1784-1846,德国天文学家,数学家)
Intensity distribution of the partially coherent Bessel vortex beams focused by an aperture lens is investigated.
研究了部分相干贝塞尔涡旋光束通过光阑-透镜系统聚集后的光强分布。
Bessel low a place in people "abuse" is also a lower probability of infection is an effective way.
贝塞尔说，少在人多的地方“扎堆儿”也是降低感染概率的一个有效方法。
Bessel functions, modulation transfer functions, stuff like this.
贝色函数，调制变换函数，以及类似的东西。
Numerical calculations show that after focused by the axicon, a vortex beam can convert into a high-order Bessel beam.
数值模拟结果表明，涡旋光束经过轴棱锥聚焦后可获得高阶贝塞尔光束。
The characteristic of Bessel function is discussed, and giving a feasible means of nanometer vibration measurement.
对贝赛尔函数的特性进行分析，提出了一种可行的纳米振动测量方法；
Some recursion formulae of Bessel functions are derived from such practice problems as well.
并从该实际问题出发，推导出了一类贝塞尔函数的递推公式。
The concept, propagation properties, production and applications of the Bessel beams are systematically reviewed and studied.
系统、全面地研究了贝塞尔光束的概念、传输性质、产生方…
The transversal intensity of the first order Bessel-Gaussian beams could be changed by the spherical aberration.
对于一阶贝塞尔-高斯光束，球差的存在会改变其横向光强分布。
characters of Bessel functions, this result may put a way to the final solution of the propagation of the shock waves.
借助于贝塞尔函数的良好性质，其研究结果可用于地震波传播问题的研究。
It is shown that series truncation may be avoided by analytically performing the radial integral over an entire Bessel function.
结果表明，系列截断可能是避免不良分析径向积分超过整个贝塞尔函数。