查询词典 index

Base on transportation scientific program assessment index's characteristics of innumerability dimension and hardly quantization, a methodology named principle component analysis by measuring factor coefficient matrix is put forward to reduce the dimension of assessment index system.

基于交通科技项目评价体系涉及面宽、种类繁多和难以量化的特征分析，通过因子荷载阵及计算因子系数矩阵的估计方法，运用因子分析法完成了指标体系的降维处理。

To avoid this, a robustness index is proposed as a replacement for the gain margin. Optimal controller design is the achievable by minimizing a designated error integral criterion for a load disturbance subject to inequality constraints on phase margin and the new robustness index.

因此，本文提出一强韧性指标来取代传统的增益边距，最佳强健控制器即可在相位边距和此指标的不等式限制下，透过将负载扰动产生之特定误差积分最小化来取得。

It was obvious that there is a thermal gradient between Central Business District and the countryside.In terms of the spatial pattern of the land brightness temperature,the most extensive UHI was distributed in Hankou,Hanyang and Wuchang.Urban heat islands distribution in Dongxi Lake,Caidian,Hannan and Jiangxia was scattered with some little heat islands.③ Interspersion and Juxtaposition Index and Percentage of like Adjacencies and Largest Patch Index were the most important factors that influence the land surface temperature.

结果表明武汉市土地利用类型的空间格局分布指数与地表温度有较好的相关性，其中地表温度与散布与并列指数、同类斑块相邻百分数指数和最大斑块所占景观面积比例指数的灰色关联度较高，说明地表温度的分布不仅受到各类型斑块与其它斑块相邻情况的影响较大，还受到最大斑块所占的总土地面积比例的影响。

The results showed that the rural residential land become fragmentized during the years 1995-2010. The indices of number of patches, area-weighted mean shape, mean fractal dimension of landscape structure in Suining county gradually increased. Interspersion and Juxtaposition index and Shannon's diversity index were decreased.

结果表明：1995~2010年徐州市睢宁县的农村居民点景观格局呈破碎化趋势，土地利用斑块数增加，斑块平均面积下降，面积加权平均形状指数上升，平均分维度小幅上升，散布与并列指数和香农多样性指数均在下降。

Appraised the clinical effect of the flavone of rhizome drynania on Senile Osteoporosis, according to the dynamic observation on integrative scores of lumbodorsal pain and lumbodynia,"VAS section grading method" on lumbodynia,"Barthel index rating method" on ADL, detected BMD on anterior-posterior position lumbar2~4 vertebra body and proximate of femur including neck/ward/troch, and determined the index of bone transition including BGP/PINP/ICTP through the radioimmunity method before and after treated half a year, then contrast intragroup and selfgroup. Depending on the standard of curative effect, contrast the difference of curative effect between two groups.

采用随机对照的方法，分为治疗组36例，对照组34例，依据对腰背痛及腰痛综合评分进行动态观察；依据"疼痛VAS线段分级法"对腰背痛（静止痛、翻身痛、久坐痛、起身痛、弯腰痛、步行痛、睡眠痛、叩击痛、压痛）进行量化动态观察；依据"Barthel指数评定法"对老年性骨质疏松症日常生活活动能力进行观察；采用双能X线骨密度仪对腰椎(L2-L4)、股骨近端各部位：股骨颈、股骨三角区、股骨粗隆进行骨密度定量检测；应用放射免疫法对骨转换指标进行测定，骨形成指标：骨钙素、Ⅰ型前胶原氨基端前肽；骨吸收指标：Ⅰ型胶原交联羧基末端肽等，评价骨碎补总黄酮治疗老年性骨质疏松症的临床效果。

In order to facilitate quantitative analysis, a rational model of physics for a rise inverse sine structure of 1×2 S-branch power splitter in glass is proposed. In thermal ion exchange, the distribution of normalized refractive index of two-step ion-exchanged optical power splitter and the distribution of splitter refractive index of different exchange time have been gotten.

为了便于定量分析，采用了一种上升反正弦S型分支光波导系统的物理模型，得到了在热扩散条件下两步离子交换光功分器波导区的归一化折射率分布和在不同交换时间所形成的玻璃波导折射率分布。

According to analyses of the existing problems in the evaluation of agent of government investment project ,combining with the characters of the substituted construction system of the government invested project and the project management,a performance evaluation index system of the agent of government invested project was constructed,fdlowing the basic principles of the index settlement.

通过对当前政府投资项目代建单位绩效考评存在问题的分析，结合政府投资项目代建制特点及项目管理特点，遵循指标设置的基本原则，构建了政府投资项目代建单位绩效考评指标体系，引入层次分析法、模糊综合评价法以及数据包络法相结合的AFD综合评价模型，并列举了应用算例。

Zhan has determined the maximum and minimum numbers of positive entries of imprimitive irreducible nonnegative matrices with a given imprimitivity index. In this paper, we prove that if a positive integer is between the maximum and minimum numbers, then there exists an irreducible nonnegative matrix A with the given imprimitivity index and with the given number of positive entries.

非负矩阵是矩阵论中研究比较活跃的领域，不可约非负矩阵是比较重要的非负矩阵，本文分两部分，一部分主要在詹兴致教授的研究基础上研究了给定非本原性指标的不可约非负矩阵中非零元个数的连续性，肯定地回答了詹兴致提出的一个自然的问题。

The conclusion of this article contains:(1) The climatology symmetric index and antisymmetric index which represent the uniform system of ocean and atmosphere is defined according to the unique kinetic character of the large-scale fluid. The symmetric mode, a state mode, and antisymmetric mode, a propagate westward mode, of ocean and atmosphere are distinguished clearly from each other. Also, the primary part which determines the symmetric mode emerges from non-divergenct wind and the dominant part which contributes to the antisymmetric mode mostly is irrotational wind. The article also compares the disparity of the climatology distribution of SST and sea surface wind field between 1948-1975 and 1976-2005. The SST of both the tropical Indian Ocean and the tropical Pacific after 80's is warm than before 80's .

主要结论如下：(1)热带太平洋气候平均态所包含的海-气相互作用的资料分析根据海洋和大气的运动特性，定义了表征海洋大气系统的对称模态和反对称模态指数，通过两个指数对热带太平洋和印度洋关于赤道对称和反对称的两个模态进行区分，发现关于赤道反对称的海-气耦合模态主要包含了大气散度分量和海洋SST的相互作用；关于赤道对称的海-气耦合模态主要包含了大气旋度分量和海洋SST的相互作用，并从资料估算了该耦合模态向西传播的速度。

Finally,the concept of the Conley index for piecewise continuous maps is defined, and an example for calculating the Conley index of a 1-d piecewise isometry is given.

最后，本文介绍了间断动力系统的Conley指标的概念，并给出了一个一维分片等距映射的例子，计算了其Conley指标。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。