查询词典 incidence

The arithmetic of incidence matrix is an arithmetic obtained by studying adjacency matrix and the relationship of tree and incidence matrix to get an new arithmetic of finding the maximum matching of tree.

通过邻接矩阵的方法得到一种去边法求树的最大匹配的算法；并通过图与其关联矩阵的关系，寻找到求树的最大匹配的一个新算法，称为关联矩阵法。

Adopt incidence matrix to express network topology. Through searching and revising the incidence matrix, the zoned feeder and its network equivalent process are realized.

采用邻接矩阵表示网络拓扑，通过对邻接矩阵的搜索和修改实现馈线的分区以及网络的等值过程。

Such indices as its incident number, crude incidence rate, China- and world-standardized incidence rate were calculated and analyzed.

收集、整理中山市1970~1999年期间肿瘤登记资料中的膀胱癌发病资料，统计分析其发病数、发病粗率、中国与世界标化发病率等指标。

The article defines the generalized variation coefficient and puts forward a new kind of grey incidence model. This kind of model reflects the positive and negative relation of grey incidence degree to some extent. It is only relate to the geometric shape of sequences and has nothing to do with the spatial position of theirs.

首先定义了广义变异系数，并提出一种新的关联度计算方法，该关联度能够反映序列的正相关与负相关关系，并且只与序列的形状有关，而与它们在空间的相对位置无关。

Finally, a case study was made of the two intersections. A comparative study was made of the performance of traditional link-based incidence model and the proposed route-based incidence model. The impacts of intersection distance, queues, number of lanes and number of signal phases were analyzed.

针对2个实际的信号控制交叉口，进行了关联度计算和协调控制关键路径判断的算例分析；对比研究了本文模型与路段关联度模型的性能，分析了交叉口间距、排队、车道数和信号相位等对交叉口路径关联度的影响。

The incidence rates of smoking and drinking were9.7%and12.3%for the students in grade seven and the rates were41.0%and62.9%for the students in grade eleven respectively.The incidence rate of depression,anxiety and irascibility in grade seven and grade elevenwere63.7%and91.7%respectively.

结果 杭州市城区中学生不健康行为较普遍，初一学生吸烟、饮酒率分别为9.7%，12.3%，高二学生吸烟、饮酒率分别为41.0%，62.9%；抑郁、紧张、脾气暴躁在初一学生中出现的比例为63.7%，高二学生为91.7%。

In this paper, firstly, not only the incidence matrix ,adjacent matrix, cycle matrix, cut-set matrix of an undirected graph are summarized, but also the close contact between a graph and its corresponding matrix are discussed ; secondly, many problems of a graph which are solved by analysing its matrix are listed as follows:1、The co-tree set of a graph is obtained by using its cycle-matrix ; 2、The branches of its spanning tree are given by using its cut-set matrix ; 3、By making use of the incidence matrix of a graph ,not only its vertex cut 、cut vertex 、isolated point and spanning tree can be obtained ,but also the two sides which are whether parallel or not can be judged ;4、By using their adjacent matrix ,the two graphes which are whether isomorphous or not can be judged; once more, there is a detailed introduction in view of special graph (for example: bigaritite graph ,regular graph and so on);last but not least, a graph method of calculating the N power of a matrix is given and the practical applications of the theorem for degree is indicated.

本文首先综述了无向图的关联矩阵，邻接矩阵，圈矩阵，割集矩阵以及图和它对应矩阵之间的关系；其次总结出了利用上述各类矩阵可以解决的图的若干问题：1、利用图的圈矩阵可以求其连枝集；2、利用图的割集矩阵可以求其生成树的树枝；3、利用图的关联矩阵不仅可以求其割点、点割集、连通度、孤立点和生成树，而且可以判断两条边是否平行；4、利用图的邻接矩阵可以判断两个图是否同构；再次，针对特殊图（例如：二分图、正则图等等）的邻接矩阵作了详细介绍；最后，得到了利用图计算矩阵的N次幂的方法，指出度数定理的实际应用。

In 2009,the overall incidence of malaria of Chuxiong autonomous prefecture was slow and steady downward trend,remained at a relatively low level of incidence of 0.88/lakh.

2009年楚雄州的疟疾发病总体呈缓慢、平稳下降的趋势，保持在一个较低的发病水平，年发病率为0.88/10万。

Results There was positive correlation ship between rat density and the incidence of leptospirosis,the incidence of leptospirosis.

了解鼠密度与钩体病发病之间的关系、水文气象与鼠类密度之间的关系。结果鼠密度和钩体病发病关系密切。

In incorporation with Jilin province science and technology department item "Study of Industry Technological Advance Systemic Effect and Frame of Jilin Province industry Technology Incidence Establishment", about national interindustry incidence relation ,research is carried out in the paper as follows:On the base of national 1997 years input-output production table ,figures out direct consumption matrix of coefficients and matrices of middle input rate.

本文结合吉林省科学技术厅课题《产业技术进步系统效应及吉林省产业技术关联表编制框架研究》对我国的产业关联关系做了如下研究：在我国1997年投入产出表的数据基础上，计算出直接消耗系数矩阵及中间投入率矩阵，并将图分析法用于产业间关联关系的研究中；在计算完全消耗系数矩阵后，计算出各产业部门的感应度系数和影响力系数，并做了波及效果分析；本文经过对各种测算技术进步方法的比较，首次采用前沿生产函数中的数据包络分析方法分析投入产出模型中的产业间技术关联；机械设备制造业具有较高的物质关联性和技术关联性，同时波及效果显著，把含有高新技术的机械设备制造业作为主导产业发展，可以提高整个工业的技术装备水平。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。