集中性

施用不同浓度的植物源杀虫剂KKY对节肢动物群落造成了一定的影响，本文主要从对总群落个体数、天敌亚群落个体数及总群落的优势集中性等方面进行分析。

Myzus persicae . ( 8 ) The use of pesticide " KKY " had an influence on the condition of communities . Individual number of arthropod communiry Individual number of spider arthropod sub-community Dominant concentration Diversity index changed .

足球与乒乓球锻炼对小学生注意集中性的影响

Experimental Research of Effect of Soccer and Table Tennis Exercise on Children 's Attentional Concentration

TabuSearch中集中性和多样性的自适应搜索策略

A Novel Adaptive Search Strategy of Intensification and Diversification in Tabu Search

4种不同生境类型访花昆虫群落多样性指数H，与均匀度指数J和丰富度指数E随时间的变化趋势基本一致，而与优势集中性指数C的变化大致相反。

Within the four indexes of flower-visiting insect community , H is consistent with J and E along with time changes and opposite to C approximately .

利用小波变换良好的能量集中性与平移不变性等优点，提出了一种基于小波变换的二维CAD工程图可逆水印算法。

Utilize the advantages of good energy concentration and translation invariance of wavelet transform , and presented a reversible watermarking algorithm for two-dimensional CAD engineering graphics based on wavelet transform .

拉裂是由于拉伸失稳引起的，以连续体力学为基础的Hill集中性失稳理论和Swift分散性失稳理论应用到各向同性板料进行失稳判定；

Fracture is caused by sheet 's tensile instability , Hill 's totalized instability theories and Swift 's diffuse instability theories which based on continuous mechanics are applied to isotropic blank ;

通过统计分析得知网络流量具有明显的集中性和平稳性，在正常情况下，网络流量仅由少数几类报文组成，而当DDoS攻击发生时，这些特性会被破坏。

Normally , network traffic consists of a few types of packets and thereby has obvious centrality and stability , but it could be changed when DDoS attacks occur .

同时选取提升框架中的OSF，优化小波系数的分布特性，提高小波图像的能量集中性，使有损压缩效果达到最佳。

Then , the optimal scaling factor is selected to optimize the distribution of wavelet coefficients and improve energy compaction of IWT .

近似为线性调频信号的SAR运动目标回波信号的模糊度函数在模糊平面内具有很高的能量集中性。

It is well known that the SAR echo can be considered as a linear FM signal , so does the echo of moving targets . The square modulus of linear FM signal has high energy centrality in the ambiguity domain .

多样性研究上，采用多个参数：丰富度、Shannon-Wiener多样性指数（H′）、均匀度指数（J）；优势集中性指数采用Simpson优势集中性指数（C）；

In the study of diversity some important parameters , such as richness index , Shannon-Wiener 's diversity index ( H ' ), evenness index ( J ) and Simpson 's dominant index were used ( C ) .

分别基于临界态Bean模型和Kim模型讨论了临界电流集中性随椭圆孔洞形状因子的变化关系，并得到了线型裂纹尖端的临界电流奇异性。

On the basis of the Bean model and the Kim model , the dependence of the current concentration with the shape factor of the elliptical hole is discussed . Also , the singularity of current distribution around the crack is obtained .

通过c-w节约算法得到高质量解，构造算法新的搜索起点，加强了集中性搜索力度。

Through c-w algorithms , we will get a high-quality solution , and construct a new search start point , and strengthened the focus of search efforts .

依据高校用户数据管理的分散性和管理流程的复杂性，设计出符合高校应用的LDAP数据模式，采用差异更新采集数据，保证了数据的集中性和一致性。

Colleges and universities based on user data management , decentralization and management processes , the complexity of design in line with college applications , LDAP data model , using a differential update data collection to ensure that the data concentration and consistency .

比如，盖洛普分析了其q12数据库（它将员工敬业度和客户参与度联系起来），结论是集中性激励、引导性鼓励和改变举措，大多都没有效果。

When Gallup analysed its Q12 database , which correlates employee engagement to customer engagement , for example , it concluded that centrally inspired and directed motivation and change initiatives mostly fall on deaf ears .

该研究小组还发现，性格呈地理集中性。

The research team also found that personalities are geographically clustered .

不同气质类型大学生注意集中性的实验研究

A Study on the Focused Attention of College Students with Different Temperaments

学校多元文化教育具有系统性和集中性。

Multi-cultural school education has characteristics of systemicity and centrality .

由于电弧集中性强，可进行各种姿势的焊接。

Welding in different angles can be conducted owing to highly concentrated arc .

区域产沙具有空间的不均匀性、年际的波动性和时间的集中性。

Non even distribution in space and inter annual fluctuation and concentration in time .

飞车抢夺犯罪的特征主要有：犯罪地域的集中性；

The main characteristics of seizing by fast drivers include : centralization of criminal locality ;

失业青年失业前的行业、职业有一定的集中性；

Third , the unemployment youth have concentricity in industry and occupation before they unemployed .

第二阶段为集中性搜索。此阶段以希望区域包含的最佳解为起点进行集中性搜索。

The second stage aims to intensification .

不同季节均以鞘翅目、同翅目和鳞翅目的优势集中性较高。

Dominance centrality indexes of Coleoptera , Homptera , and Lepidoptera were high in different seasons .

现在还没有证据表明这种病毒目前在印度集中性爆发。

There has been no evidence of an outbreak cluster , so far , in India .

可见，刑事审判的集中性在国际上是刑事审判的一种发展趋势。

It is obvious that the concentration of criminal justice is development trend in the world .

李园节肢动物群落与各亚群落之间在均匀度、优势度、优势集中性上的关系

The Relationship between Arthropod Community and Its Sub-communities on Evenness Dominance and Dominant Concentration in Plum Field

经济的空间分布具有集中性特点，人口的空间分布及演化亦是如此。

Be similar with economic spatial distribution , the characteristic of population spatial distribution is spatial centrality .

高校教学秘书的职能决定了这一特殊岗位的辅助性，服务性，和相对集中性特点。

Teaching secretaries in universities are endowed with the features of assistant , service and relative concentration .

设计竞争战略：设计质量领先、差别化策略、集中性策略。

Design competition strategy contains : the first to design quantity , different strategy , and concentrated strategy .

优势集中性指数与多样性指数呈负相关变化。环境浓度随季节而大幅度变化。

The dominant index is in negative correlation to diversity index . Ambient concentrations varied considerably by season .