The step index profile optical waveguide is the fundamentals of all other optical waveguide devices theoretically.

阶跃折射率光波导在理论上是所有其它光波导器件的基础。

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Good result is achieved for the propagation constants and chromatic dispersion of arbitrary index profile single mode fiber.

该法对任意的圆对称折射率剖面光纤计算传输常数和色散能够得到满意的结果。

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Two methods of measurement of the refractive index profile in optical fibers: interference microscope method and near field method are evaluated.

对两种测量光纤折射半剖面的方法：干涉显微镜法和近区场法，进行了评价。

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By assigning an equal weight to each component of the index it may be that one may develop a well balanced risk reward profile.

FORBES: Innovation In Investment Vehicles

The paper estimates that each new profile added to the US DNA database - the Combined DNA Index System, or Codis - resulted in 0.57 fewer serious offences.

BBC: DNA and individual freedom v crime prevention

The authors compute an index of occupational segregation, which compares the composition of employment in individual places with the national profile.

ECONOMIST: Free exchange