内尺度和折射指数结构参数的概率分布及其在计算通量平均值值的应用。
Probability Distributions for the Inner Scale and the Refractive Index Structure Parameter and Their Implications for Flux Averaging.
石油产品。中间馏分产品中芳香烃类的测定。用折射指数检测的高性能液相色谱法。
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection.
折射指数的大会有所不同半径的电缆,其核心具有恒定或顺利不同折射率称为数控。
The index of refraction of the assembly varies across the radius of the cable, and the core has a constant or smoothly varying index of refraction called nc.
利用改进的BP算法,结合电波传播理论,建立了随机雨介质的等效复折射指数的神经网络模型。
The neural network model of the equivalent complex refractive of random rain media is developed by means of the improved BP algorithm, based on the electromagnetic wave propagation theory.
水的折射指数比空气还要高,因此水和纤维之间折射的相对指数要远低于空气和纤维的相对指数。
Water has a much higher index of refraction than air, and so the relative index of refraction between water and the fiber is much lower than between air and the fiber.
在正常的用具有阳性折射指数制作的多个光导纤维中,这种情况会让电缆的有效厚度高于它的实际物理厚度。
In normal optical fibres made from materials with positive refractive indices, this makes the effective thickness of the cable greater than its physical thickness.
对洞的中等旋转角,我们揭示此结构的最大绝对带隙可以获得,且该角依赖于洞的半径和背景材料的折射指数。
We reveal that a maximum absolute bandgap for this structure is achieved for an intermediate rotation Angle of the holes.
由于竹浆粕本身具备竹糖特殊成分, 因此制备的偏光板保护膜光透过率可以达到90~98%,折射指数在 1.10~1.50;
Since bamboo pulp has bamboo sugar special component, the light transmittance of the polarized protective film can reach 90-98% while the refractive index is 1.10-1.50.
赫斯博士构想出一个画面,即一道光正穿越于一个由两种材料制作的光导纤维,一种是具有正折射指数的纤维核,另一种则是具有正折射指数的外围。
Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
但是,具有正折射指数的材料已经被制作出来(至少用于对那些具有大波长而无法看到的光进行试验的材料已经制作出),因此这种构想的试验不会大费周折。
But materials that have negative refractive indices have already been made (at least for light with wavelengths that are too long to be visible), so the idea could be tested fairly easily.
本文根据光线轨迹方程,讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
本文采用抛物型等效法研究指数型梯度折射率纤维的成像特性。
The imaging characteristics of an exponential-type GRIN fiber is studied by the method of "equivalent parabolic-type".
环境温度、外部折射率指数的变化会导致谐振波长位移。
The shift for resonance wavelengths is produced with environmental temperature and external refractive index.
文应用WKB法导出了指数折射率平面光波导的模方程。
The mode equations of the planar waveguides with exponential index profiles are derived by using WKB method.
折射率、色散和吸收系数是用于超高速全光开关的光学材料的重要品质指数。
Refractive index, chromatic dispersion and absorption coefficient are material figures of merit for ultrafast all optical switch.
忽略轴向的模式耦合以及包层模式之间的相互耦合作用,并认为折射率指数的调制只存在于纤芯中,建立了简化的长周期光纤光栅数学模型。
Then the simplified model for the LPFG is deduced with ignoring longitudinal coupling of modes and coupling of cladding modes themselves, and also assuming the modulation of refractive index exis...
经过紫外氘灯光源照射5个小时之后,薄膜厚度减少了55%,而折射率从1.484减小为1.445,光学厚度更是随着照射时间增长呈现出指数变化。
After irradiated by ultraviolet (UV) light with a deuterium lamp for 5 h, the thickness of film decreases largely by 55%, and the refractive index of film changes from 1.484 to 1.445 at 550 nm.
经过紫外氘灯光源照射5个小时之后,薄膜厚度减少了55%,而折射率从1.484减小为1.445,光学厚度更是随着照射时间增长呈现出指数变化。
After irradiated by ultraviolet (UV) light with a deuterium lamp for 5 h, the thickness of film decreases largely by 55%, and the refractive index of film changes from 1.484 to 1.445 at 550 nm.
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