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- The query optimizer in SQL Server 2005 reliably chooses the most effective index in the vast majority of cases. SQL Server 2005中的查询优化器可在大多数情况下可靠地选择最高效的索引。
- Four models for random errors of domains and variations of effective index are investigated. 分别考察了畴随机边界和有效折射率的四类偏差情况对转换效率的影响,结果表明,当有效折射率沿波导有规律地变化时,差频的归一化转换效率(?)
- Erbium-doped holey fiber with hexagonal lattice was modeled by using effective index method. 六角点阵的掺铒多孔光纤是通过采用有效折射率法建模的。
- The effective index method(EIM) and its inherent errors are analyzed, and an improved method is proposed. 分析了有效折射率法及其计算偏差的产生原因，提出了一种改进方法。
- The effective length of carbon chain of alkanes was built up by using the polarizability effective index. 利用极化效应指数，构造了链烷烃的有效碳链长度。
- Conclusion Osborn wave in electrocardiogram is an effective index in predicting malignant ventricular arrhythmia after AMI. 结论 心电图Osborn波可作为AMI病人恶性室性心律失常有效预测指标。
- The result obtained by the vectorial effective index method is in better agreement with those by the finite element methods and measured data. 采用矢量有效折射率方法的计算结果与基于有限元方法求解的数值结果和测量结果吻合得更好。
- Combining the modified effective index method, a novel method for calculating the complex reflection spectrum is proposed. 结合改进的有效折射率分析方法，提出了一种计算光纤光栅谱特性的新方法。
- A simple method for calculating the standard heats of formation of organic compounds containing carboxide using the inductive effect index is built up. 利用诱导效应指数建立了一个含羰基有机化合物的标准生成热的简单计算方法。
- The transfiguration of effective index method(EIM) is used to analyze the factors influencing the losses, and the minimum bending radius and the relative losses are calculated. 根据有效折射率的变型形式分析了影响弯曲波导损耗的主要因素,并计算了最小弯曲半径及其相对应的损耗。
- 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。
- Based on the molecular polarizability effect index,a formula of three parameters was proposed to calculate the boiling point of aliphatic aldehydes and alkanones. 本文讨论了分子极化效应指数[5]与脂肪族醛酮沸点的关系,力求寻找到一个适用范围广,并且具有分子结构特征的计算脂肪族醛酮沸点的计算公式。
- That's rather an effective use of color. 这种使用颜色的手法效果相当好。
- The economic effect index brought out by the education policy has become an important reference ground for the standards of the educational policy teleology. 在深刻变革时期，教育活动愈复杂，变化速度愈快，后果影响愈强。
- METHOD: Geracomia Effect Index (GEI) has been used to analyze data of death cases that are collected by Jiujiang disease inspection system from year 1992 to 1996. 方法:应用老年保健效益指数(GEI)对我市疾病监测系统1992年-1996年死亡监测资料进行分析。
- We now come to a page that ranks our keywords by KEI, or Keyword Effectiveness Index. 现在到了我们的队伍;一页的关键词祺、键字或效益指标.
- In the short term, the medicine may not be very effective. 从眼前来看，这药可能疗效不是很大。
- Furthermore, the author pointed out some defficiencies of the Kendall coefficient of concordance (W coefficient) and suggest that phi coefficient is a more effective index as rater consistency reliability. 最后，本文还对传统评分者一致性系数（W系数）的不足以及概化理论中系数的优越性进行了讨论。
- 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。
- The EIM was introduced at first.By solving the scalar wave equation within cladding of TIR-PCF, the fundamental space-filling mode and the effective index of the cladding were calculated. 深入研究了有效折射率模型的构造，通过求解标量波动方程得到了光子晶体光纤包层基空间填充模，得出光子晶体光纤的包层有效折射率；
