查询词典 correlation function

The correlation between independent variables and demographic data revealed a positive correlation between self —efficacy of prevent and management EIA and behavior of prevent and management EIA. There was a negative correlation between physical activities and gender, age and beginning age of asthma.

三预防及处理行为得分与预防及处理行为自我效能得分呈正相关；身体活动得分与性别、年龄及气喘开始年龄呈负相关；EIA预防及处理行为自我效能得分与目前有使用气管扩张剂呈正相关；EIA认知得分差与EIA处理行为自我效能得分差及身体活动得分差呈正相关。

Research progress at home and abroad in recent years was reviewed on the correlation s of physica1 and chemical properties between crude oil and its distillations including the selection of correlation al parameters and the conformation of correlation al formulas.

综述了国内外原油及馏分油物性关联研究的进展，包括关联参数的选择、关联公式的构造等。

The invention relates to a node marking method in a wireless Mesh network, including that a first node transmits connection request information; a second node returns to connection response information or selects an undistributed correlation sign to mark the connection relation and return to one connection response information; the first node judges whether the correlation sign is conflicted with a distributed correlation sign or not, if yes, then retransmitting is carried out; the first node or the second node transmits information to a correspondent node; the correspondent node searches a corresponding transmitting node from a local record according to the analyzed MAC address and searches a Mesh node mark; by judging according to the mark, if no bit position is corresponding to the Mesh node mark or the corresponding bit position is set as 'no', which means that no data is transmitted to the correspondent node; otherwise, data is transmitted to the correspondent node.

本发明涉及无线Mesh网络中的节点标识方法，包括第一节点发送连接请求消息；第二节点返回连接响应消息，或者选择一个未分配的关联标志来标识连接关系，返回一个连接响应消息，第一节点判断关联标志与已分配的关联标志是否冲突，如是则重新发送；第一或第二节点向对端节点发送消息；对端节点根据解析出的MAC地址从本地记录中查找对应的发送节点，并查找Mesh节点标识；根据标识进行判断，若没有与Mesh节点标识对应的比特位或对应的比特位设置为&否&，则表示没有要发送给对端节点的数据；否则表示有。

The estimated heritibilities were 0.065 and 0.047 for interval from first to last inseminution and calving interval, respectively;Genetic correlation were 0.45 and 0.35 between IFL,CI and milk yield, respectively;phenotypic correlation were 0.17 and 0.15, respectively; genetic correlation was 0.33,and phenotypic correl...

结果表明：环境因素对母牛主要繁殖性状影响非常显著，母牛繁殖性状为低遗传力性状，各性状间存在不同程度的相关

For the Riemann boundary value problems for the first order elliptic systems , we translates them to equivalent singular integral equations and proves the existence of the solution to the discussed problems under some assumptions by means of generalized analytic function theory , singular integral equation theory , contract principle or generaliezed contract principle ; For the Riemann-Hilbert boundary value problems for the first order elliptic systems , we proves the problems solvable under some assumptions by means of generalized analytic function theory , Cauchy integral formula , function theoretic approaches and fixed point theorem ; the boundary element method for the Riemann-Hilbert boundary value problems for the generalized analytic function , we obtains the boundary integral equations by means of the generalized Cauchy integral formula of the generalized analytic function , introducing Cauchy principal value integration , dispersing the boundary of the area , and we obtains the solution to the problems using the boundary conditions .

对于一阶椭圆型方程组的Riemann边值问题，是通过把它们转化为与原问题等价的奇异积分方程，利用广义解析函数理论、奇异积分方程理论、压缩原理或广义压缩原理，证明在某些假设条件下所讨论问题的解的存在性；对于一阶椭圆型方程组的Riemann-Hilbert边值问题，利用广义解析函数理论、Cauchy积分公式、函数论方法和不动点原理，证明在某些假设条件下所讨论问题的可解性；广义解析函数的Riemann-Hilbert边值问题的边界元方法是利用广义解析函数的广义Cauchy积分公式，引入Cauchy主值积分，通过对区域边界的离散化，得到边界积分方程，再利用边界条件得到问题的解。

We prove the equivalent conditions of completely monotone function, we also discuss the relationship of positive definite function, semi-positive definite function and completely monotone function when the function take values in a commutitive von Neumann algebras.

我们证明了完全单调函数的几个等价条件，并且讨论了取值于交换von Neumann代数的正定函数，半正定函数及完全单调函数之间的关系。

Properties of efficient portfolios and the efficient frontier to the model are systematically analyzed. Our main results concerning the properties are: every efficient portfolio can be solved by minimizing portfolio risk under a given level of portfolio return or by maximizing portfolio return under a given level of portfolio risk; on the efficient frontier, the risk is a convex and strictly increasing function of the return and the return is a concave and strictly increasing function of the risk; the utility function on the efficient frontier can be expressed as a quasi-concave function of the risk or the return if the investor's utility function is quasi-concave.

从理论上系统地对该模型下的有效投资组合和有效前沿的性质进行了分析，结果表明：每一个有效投资组合可通过在给定期望收益水平的条件下最小化投资组合风险来获得，或者在给定风险水平的条件下最大化期望投资组合收益来获得；在有效前沿上，风险是收益的严格单调递增凸函数，收益是风险的严格单调递增凹函数；当投资者的效用函数是拟凹函数时，则有效前沿上的效用可表达成风险或收益的拟凹函数。

The convex function develeped so many years that convex functionals are now a class of very universal functionals.The kinetic energy in the classical is the most natural convex function.Others like entropy and so on are convex functions.The economic core is closely connected with the convex function.The western economic core question is the optimized question.The optimized theory has something to do with the convex function and the concave function.

凸函数的发展经年已相当完善其应用非常广泛，在古典力学中的动能，就是最自然直接的凸函数，其他如熵……等均是，连经济学的核心都与之有极密切相关，西方经济学的核心问题是最优化问题，最优化理论又与凸函数与凹函数密切相关。

The decreasing conditions of an energy function are investigated by the use of convex function. By utilization of the primal convex function, the conditions are analyzed under which its conjugate function minus a quadratic function is also convex.

利用凸函数的定义研究了能量函数下降的条件，根据凸函数的性质分析它的共轭函数减去二次函数之差仍为凸函数的条件。

The paper uses precise step to produce the continuity function of water hammer mathematic model, not only gains more precise water hammer pressure function and water hammer wave speed functionbut also founds correct water hammer mathematic modelContinuity EquationMovement EquationAfter ignoring subordinate facts, function (1) and (2) translate into the current applied water hammer pressure function and water hammer wave speed function.

本论文对水击数学模型中的连续性方程重新进行了严谨的推导，不仅得到了更加准确的水击压强和水击波速的计算公式也建立了正确的水击数学模型连续性方程运动方程当忽略次要因素以后，公式(1)和(2)即可转化为当前应用的水击压强计算公式和水击波速计算公式。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。