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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(?)
- Results Obtain the estimates of treatment effect,time period effect,sequence effect and individual variation separately. 结果分别获得处理效应、阶段效应、顺序效应以及个体变异的估计。
- 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。
- DISCUSSION The lower dose of Livial can defer the menopause period effectively, preventing to perimenopause syndronm. [讨论]绝经前期口服小剂量利维爱可有效地延缓进入绝经期，且可预防围绝经期综合征的发生。
- 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。
- By introducing the technique of plunger gas lift,the optimal design of parameters and field operating prolong the flowing period effectively,and the bett... 通过引进柱塞气举技术,进行参数优化设计和现场施工,有效地延长了油井自喷期,取得了比较好的效果。
- 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。
- Johnson, J. and E.Newport.Critical period effects on universal properties of language: the status of subjacency in the acquisition of a second language[J].Cognition 1991, (39). 本文中的第二语言学习者指学习或习得母语以外的语言的人;其中不包括生长于双语或多语环境的人.
- 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。
- 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。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
