The propagation properties of photonic crystal fibers (PCF) are discussed with effective-index model.
应用等效折射率模型研究了光子晶体光纤(PCF)的传播特性。
Compared with the traditional subjective judgments of administrative staff and single evaluation index model, DEA model has offered a more effective method in appraising advertisement effect.
同传统的管理人员主观判断和单一评价指标相比，DEA模型提供了一种更为有效的广告效果评价方法。
After defining a effective index for process similarity, an analogue model, which is suitable for doing similarity forecast for a time series, was established.
通过寻找过程相似的有效指标，建立了一个适合于时间序列分析的相似预报模式。
In order to determine the model matching index of switching control, a multiple models switching control algorithm based on effective model matching was presented.
针对切换控制中模型匹配准则的确定问题，提出了一种基于模型有效匹配的多模型切换控制算法。
This paper simulates the volatility of Shanghai stock index by ARCH Models and the result shows that GARCH (1, 1) model is effective in the simulation of the volatility of Shanghai stock index.
利用ARCH类模型对上证指数的波动进行了拟合，结果表明GARCH（1，1）模型对上证指数波动具有较好的拟合效果。
The properties of long period gratings in photonic crystal fibers (PCFLPG) are systematically analyzed by the improved full-vector effective index model and the coupled mode theory.
将修正的矢量等效折射率模型和耦合模理论相结合，系统地研究了光子晶体光纤长周期光栅(PCFLPG)的特性。
Results indicate a strong correlation between model predicted and subjective data, and therefore proved the devel-oped model an effective index for subjective low-frequency perception.
结果表明，低沉度模型的预测结果与主观评价结果具有很高的相关性，从而证明了所提出模型的有效性。
With this model, the effective index of PCF cladding with different structure parameters was discussed.
应用此模型对不同结构光子晶体光纤包层区的等效折射率与波长的关系进行了讨论。
Based on the new index and the evaluation model about abstaining from voting, an accurate and effective method of abstaining from voting is put forward.
在深入研究集对分析和集对分析对不确定性问题处理理论基础上，通过引入新的弃权问题评价指标与方法，给出了一种新的处理弃权问题的方法。
Based on the new index and the evaluation model about abstaining from voting, an accurate and effective method of abstaining from voting is put forward.
在深入研究集对分析和集对分析对不确定性问题处理理论基础上，通过引入新的弃权问题评价指标与方法，给出了一种新的处理弃权问题的方法。
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