Variational-Effective index method and Finite difference beam propagation method(FD-BPM) are both practicable waveguide simulation tools.
在众多的波导模拟工具中变分有效折射率法和有限差分束传播法都是实用性非常强的。
By way of using improved effective index method, we have designed a dispersion-flattened microstructure fiber to get high efficiency optical parametric amplification.
利用改进的有效折射率法，设计了一种能得到高效率的参量放大的色散平坦微结构光纤。
Starting with waveguide ray theory, the condition for single-mode waveguide is derived, and design of single-mode strip waveguide is accomplished with effective index method.
从导波的射线理论出发，导出了波导单模条件，运用有效折射率法完成了单模波导的优化设计。
The ray optics and wave optics methods for slab waveguides are also explained while the Marcatili's method and the effective index method are introduced for channel waveguides.
研究了平面平板波导的射线理论分析法和电磁场分析法，条形波导的马卡梯里法和等效折射率法。
A fully vectorial effective index method is proposed and used to study the dispersion properties of photonic crystal fibers in combination with the concept of normalized dispersion.
提出了光子晶体光纤色散的矢量有效折射率计算方法，并结合归一化色散的概念研究了光子晶体光纤的色散特性。
The Variational-Effective index method is based on mixing the variational method(VM) and the effective index method(EIM), it can be used with very accuracy to simulate the field distribution.
变分有效折射率法是变分法（VM）和有效折射率法（EIM）的结合，它能够很精确地模拟光场分布情况；
Transmission parameters such as numerical aperture and normalized frequency of the fabricated holey fibers have been measured and compared with theoretical values based on effective index method.
测量了拉制成的有孔光纤的数值孔径和归一化频率等传输参数，并基于有效折射率方法与理论值进行了比较。
This method creates an effective site map for search engine spiders to traverse and index as many URLs as possible in your entire site.
此方法会创建一个高效的站点地图，以供搜索引擎爬网程序在您的整个站点中遍历尽可能多的URL并针对这些URL建立索引。
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。
The measurement of density and hardness of carbide tips is one of effective method to judge the real compositions of carbide tip and index of performance quality.
实测硬质合金刀片的密度和硬度值是一种判断刀片成分真实含量和性能质量指标的有效方法之一。
The fuzzy importance index of unit is one of simple and effective method to evaluate important degree of unit of equipment at short of the data.
零部件关键重要度指标是一种在数据相对缺乏的情况下评价装备零部件重要性的简单有效方法。
The results showed that the quantitative analysis of computer is helpful for quick measuring index of pollen's shapes, this is effective method for numerical taxonomy of pollen.
结果表明：花粉计算机量化分析有助于快速定量测定有关花粉形态指标，是花粉数量分类的一种有效方法。
Projection pursuit is an effective method for dimension reduced. The estimation of projection index is the core of projection pursuit method.
投影寻踪方法是处理高维非下态数据的有效工具，而投影指标的估计又是投影寻踪方法中的核心问题。
Methods:To consider Sugarcane total alkane alcohol as effective part objective, total alkane alcohol and octacosanol as investigation index, determine content by gas chromatography method.
方法：以甘蔗滓总烷醇为药材有效部位目标产物，并以总烷醇及二十八烷醇为主要考察指标，用气相色谱法进行含量测定。
The thesis did a experiment on the ShangHai stock Index (close index) , proved that the model and research method is effective.
本论文对上证收盘指数进行了实例预测研究，证明本文所建立的模型和研究方法是实用而有效的。
Four effective methods on measuring refractive index of wave guide film are given. All of the methods are studied, especially, an experiment is done by the prism coupling method.
本文讨论了四种测量波导薄膜的有效方法，对各种测量方法作了分析研究，并着重对棱镜耦合法进行了实验研究。
This paper firstly discusses the partner selection process and its evaluation index system, using the analytic hierarchy process to evaluate, through examples the method is feasible and effective.
本文首先讨论了合作伙伴选择过程及其评价指标体系，采用了层次分析法来进行评价，通过实例验证该方法是可行、有效的。
It was considered that the method of index of integrated comparative advantage was practical, simple and effective.
认为综合比较优势指数评价方法真实、实用、简便、有效。
It is testified that the method is effective and the measuring accuracy is improved by the experiments of measuring and compensating for refractive index of air.
通过空气折射率测量及补偿实验，证实了该方法的可行性，测量结果经补偿后可使精度提高一个数量级。
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。
The effective refractive index is 2.0452, which was measured by prism coupler method.
用棱镜耦合法测得了该薄膜的有效折射率为2。 0452。
The comparison between test results and theoretical results indicated that the calculation method of shear wall section curvature ductility index is reliable and effective.
通过高强混凝土剪力墙的试验结果与计算结果的对比分析，表明本文提出的剪力墙截面曲率延性系数计算方法的可靠性和有效性。
The effective index refractive of every mode is 2.0044, 1.7098, measured by prism coupler method.
利用棱镜耦合法测得了该薄膜中每条模所对应的有效折射率为2.0044和1.7098。
Resolve dispersion equation and obtain the effective refractive index of cladding using method of numerical calculation.
推导出纤芯、包层、薄膜层、环境层的场分布表达式，利用数值计算求出了包层膜的有效折射率。
The results indicated that the method of short time head-down bed-rest is an effective approach to examine the adaptive capacity of subjects for bearing WL and the REG is a valuable index.
结果提示，短期头低位卧床可作为检查被试者失重适应能力的一种方法，而REG是一个有用的评定指标。
The results indicated that the method of short time head-down bed-rest is an effective approach to examine the adaptive capacity of subjects for bearing WL and the REG is a valuable index.
结果提示，短期头低位卧床可作为检查被试者失重适应能力的一种方法，而REG是一个有用的评定指标。
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