正相关

To simplify the problem of multiple lognormal random interferences, an equivalent method is proposed to approximate the sum of correlated random variables to the sum of uncorrelated ones.

为了简化多个对数正态随机干扰的问题，提出了1种等效方法，能将相关随机变量之和等效为非相关随机变量的和。

A new algorithm based on PS method was proposed for generating correlated normal variables with any given expectation, variance and correlation matrix. Theoretical proof and numerical experiment were shown.

以PS方法为基础提出了新算法，此算法在均位、方差和非负相关阵任意给定的条件下，可以求得相应的相关正态分布的随机数，并且对该方法进行了理论证明与数位实验，给出了数据分析表。

A same marker locus could associate with multiple traits with its alleles performed in their own way in direction and size, and the covariation of a same allele performed in two related traits might be the genetic basis of their phenotypic correlation.

同一标记位点可与多性状关联，其等位变异在不同性状间各有其表型效应的方向和大小；等位变异在相关性状效应上方向、大小的异同解释了性状间正、负相关的遗传原因。

Seven kinds of antijamming methods,such as time correlated choice and field-of-view shrinkage, inertial track,real-time memory criterion,amplitude discrimination, pulse-width discrimination, pulse-amplitude time sequence discrimination and pulse-width amplitude discrimination for Counter-Infrared-Interference-Missile with the cross-shaped detector array are given.

介绍了四元正交探测器以及红外干扰弹的工作原理，对四元正交探测器导引系统抗红外干扰的7种方法(即时间相关选择和视场收缩技术、惯性跟踪机制、实时记忆准则、幅值鉴别法、脉冲宽度鉴别法、脉冲幅值序列鉴别法和脉冲宽度幅值鉴别法)等进行了讨论。

The concerned policies and laws of our government is still distempered, our economic and technological ability is still poor. Because of these, people oppugn the possibility of the roof gardens generalization and have some misunderstanding about the new space.

这些差距主要体现在政府相关法规的不健全，经济能力有限以及相关技术的落后，正因为如此，人们对于屋顶花园是否能够广泛推行抱有质疑，对于这种新型活动空间存在着观念上的误区。

They concentrate on discussing the dynamic character of the first and second moment of time series. Under normal distribution, the problem of dynamic financial risk measure and elusion can be solved effectively. However, it becomes invalid or is short of effectiveness.

他们的工作主要集中于讨论时间序列的一阶矩和二阶矩的动态性质，能够有效地解决正态分布条件下动态金融风险的测度与规避问题，对于非正态分布条件下相关主题的讨论具有一定的局限性。

By changing differential equations into nonlinear integral equation,we study the existence of positive solution of a class of second order differential equations problems by the fixed point theorem of cone expansion and compression,and the fixed point index theorem,then we obtain two multiple positive .

通过将常微分方程转化为非线性积分方程，利用锥拉伸和锥压缩不动点定理和不动点指数讨论了一类二阶常微分方程的正解存在性问题，在一定条件下，得到了几个多重正解定理，同时证明了与此相关的主要引理

Some sufficient conditions for the existence and multiplicity solutions of positive periodic solutions were obtained by using the fixed point theorem .

讨论一类具分布时滞的微分方程正周期解问题，利用锥不动点定理，获得了这类问题正解存在性和多重性的充分条件，推广和改进了已有文献的相关结果。

Tectonic subsidence and deposition sedimentation were primarily controlled by basin border normal faults. Uplift of basement rocks of the footwall was due to the tilting of border faults and became main provenance areas.

盆地构造沉降和沉积充填过程主要受边界正断层的控制，断层下盘基底岩石的抬升与盆地边界正断层活动相关，从而成为盆地主要的物源区。

Chapter 1 we introduce the risk process with positive and negative risk sums,show the background of the risk process. Chapter 2 we show the integral and differential equation of birth probability,give the Lundberg inequation that the ruin probability satisfies with martingale approach,then discuss then ruin probability of the risk process with two dependent positive and negative risk sums,study how the dependence impacts on the ruin probability. Chapter 3 we compare the concrete examples by numbers,and makes further comparison between the two results coming out of independency and dependency,with the purpose of narrating their respective impacts on the probability of ruin probability.

本文第一章引入含正、负风险和的风险模型，介绍风险过程的实际背景；第二章给出生存概率Φ所满足的积分-微分方程，利用典型鞅方法给出破产概率Ψ满足的Lundberg不等式，并且讨论两个相关正、负风险和模型的破产概率，研究相关性对破产概率的影响；第三章对具体实例给出数值比较，进一步把相关性和独立性两种情形的结果进行比较，说明对破产概率的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。