理论概率

Based on the theory of nonequilibrium statistics and density operator equation, the generalized master characteristic function for the nonextensive reaction-diffusion systems affected by pressure is derived by equation satisfied by calculating the time variation of probability distribution function, where the pressure of the nonextensive systems is given in the framework of Tsallis statistics.

依据非平衡统计及密度算子方程，通过计算概率分布函数的时间变化，得到了非广延反应扩散系统在压力作用时其特征函数满足的广义主方程，其中非广延反应扩散系统的压力在Tsallis统计的框架下给出。与唯象理论中的主方程比较，新得到的方程不仅依赖于非广延参量q而且有更多的非线性项，因此更具有普遍性。

But in current engineering practice,these two concepts are confused.On the one hand,it causes no fit theory for delimiting seismic statistical zone in PSHA to be set up;on the other hand,researches about delimitation of seismic belts with purposes of seismicity zoning and studying on structural environment,mechanism of earthquake generating also paues to go abead.

现行工作中将两者不加区分地使用是不合适的，一方面造成地震统计区未形成自身的适应概率地震危险性分析方法的划分理论，另一方面也造成以地震活动特征和地震孕育发生环境、机制研究为目的的地震带划分研究的停滞不前。

Major conclusions are given in the end of this paper,that seismic statistical zone bases on the result of seismic belt delimiting,it only arises in and can be used in the especial PSHA method of China with considering spatially and termporally inhomogeneous seismic activities,and its concept should be clearly differentiated from the comcept of seismic belt.

文中最后指出，地震统计区划分是以地震带划分研究为基础，它产生并服务于考虑地震活动时空不均匀性的概率地震危险性分析方法，应将其与地震带概念加以明确区分，并加强其划分原则、理论和方法的研究。

Taking household\'s land use preference as classification rule, household agent types were divided though classification tree. Different choosing process of current production strategies and theirs probabilities after expiration of GFGP chosen by various types of household agents\' were put forward by experience-weighted attraction model based on bounded -rational approach. Finally, forecasting the results of households\' recultivation behaviour after the expiration of GFGP by scenario analysis method. The results show that relative policies are useful to rectify deviation of households\' bounded-rational behaviours and reinforce outcomes of GFGP.

以农户家庭户主的土地利用选择偏好作为分类依据，采用分类树方法对农户智能体类型进行划分；基于有限理性决策理论，引用经历—权重吸引模型，对农户智能体的目前生产策略决策过程和退耕还林政策期满后农户对不同生产策略的选择概率进行了分析；最后，在ERDAS环境下对退耕还林政策期满后农户的复垦行为进行了情景分析，认为政府制定并实施的相关政策措施对于纠正农户的有限理性行为偏差，维持和巩固退耕还林政策成果具有重要作用。

Starting from the basic concept and principle of reliability theory, some methods of reliability analysis and calculation for structural members and systems are discussed in seme detail m this paper, On the basis of others'research achieements , the method for calculating the reliabillity of continuous PPC girder bridge system is deduced from the probability of failure,In accordance with the test resuIts of 14 two-span continuous PPC model beams , obtained from the rescarch project,A study on the plastic ...

本文从可靠度理论的基本概念和原理出发，主要论述了结构杆件和系统可靠性分析和计算方法。在前人研究的基础上，利用失效概率推导出连续梁系统可靠指标的计算方法，本文还根据高等学校博士学科点专项科研基金资助项目《大跨度预应力混凝土桥塑性行为的研究》所进行的十四片两跨混凝土连续梁桥模型试验的数据算出各梁承载能力的系统可靠指标。

Secondly, modeling the uncertainties of theb value, the annual occurrence ratev and the upper bound magnitude M uusing convex set models, a convex set-based seismic hazrd analysis approach is developed by integrating the convex theory with the probabilistic based CPSHA (China Probabilistic Seismic Hazard Analysis) theory. By the example of seismic hazard analysis of a city in southern China, this method is demonstrated with a sensitivity analysis.

然后，采用包络界限凸集模型和椭球界限凸集模型描述地震活动性参数b值、年平均发生率v和地震统计区震级上限M u的不确定性，将凸集理论和考虑时空不均匀性的概率地震危险性分析方法相结合，发展了地震危险性分析的凸集分析方法；以南方某市为例，进行地震危险性分析和地震活动性参数的敏感性分析。

An analytical model for performance evaluation of unslotted spread spectrum ad hoc networks is presented by introducing a queuing system and a Markov chain. The model is used to derive packet success probability and expressions for calculating throughput and delay.

通过引入排队系统和马尔可夫链建模方法，建立非时隙扩频ad hoc网络理论分析模型，导出了数据分组成功传输概率，得到了系统吞吐量和时延性能表达式。

On the base of the developments and the characteristics, a new commingled algorithm that is Probability Clonal Selection Particle Swarm Algorithm is put forward, and the application process of the commingled algorithm is presented after the commingled theory is analyzed.

接着，研究了算法的融合机理，并对各自的算法进行了改进，在改进的基础上，依据三种智能优化算法的特点，提出了一种新的融合算法，即概率克隆选择微粒群算法，并对其进行了理论分析，给出了融合算法的应用流程。

First, based on the basic theory of ARM and the concept of radiant point enticing system, the system theory is inducted, the system model is established, and the dispsal of stations to the enticing system of two-points is proposed, the ruing probability index to classify and simulate all kinds of embattling mode is introduced, then, every simulation conclusion is analyzed, evaluated and compared to find the optimal embattling mode.

主要从反辐射导弹的基本原理和有源诱偏的概念入手，对两点源诱偏系统进行理论推导、数学建模、布站设想，后引入毁伤概率指标对各种布站方式进行分类、仿真，对每一种仿真结果进行分析、评估，再把各种分析结果加以比较，从中找出最佳的布站方式。

Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.

理论分析和计算机仿真都表明，星敏感器的测量精度和焦距，下行信号光的束散角将影响激光链路成功建立概率。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。