随机

It was proved that under Lipschitz coefficients, the solutions of SDEs driven by Brownian motion or a continuous semimartingale form a stochastic homeomorphism flow.

在方程系数Lipschitz连续的条件下，由Brown运动或连续半鞅驱动的随机微分方程的解形成一随机同胚流。

The arguments on the necessary for quantized evaluation toward quality of services of multicast in Overlay networks are given. The concept of twodegree homeomorphism reduction multicast tree is introduced, extend Bowman's method for evaluating QoS of unicast dataflow by using stochastic process algebra is promoted, a modeling scheme is proposed for quantized evaluating QoS of concrete multicast instances in Overlay networks with simulation tool PEPA workbench.

论述了对Overlay网络中组播的服务质量进行量化评价的必要性，引入了组播树二度同胚约简的概念，推广了Bowman评价单播数据流服务质量的随机进程代数方法，提出用随机进程代数对Overlay网络中组播的服务质量进行评价的建模方案，并用PEPA workbench模拟工具针对具体的组播实例的服务质量进行了定量分析。

SPNAnalyzer software system has a very friendly man-machine interaction interface, so the visualized modeling of stochastic Petri net is very intuitional and convenient. The response and handling of the Windows messages is extended to the graph tool module, so it is very easy to maintain. The class design of the element object module and the graph tool module guarantees the expansibility of the system. The crucial technologies including the reachability set algorithm of the stochastic Petri net model, the constitution of the homogeneous Markov chain, and the computation of the steady state probability are implemented. The design of the data structure adopts the linked list, so the execution of the algorithms is very efficient.

SPNAnalyzer软件系统具有非常友好的人机交互界面，使可视化的随机Petri网建模变得非常直观方便；将各种Windows消息的响应和处理延伸至图形工具模块，使系统的维护变得容易；元素对象模块和图形工具模块的类的设计使系统的可扩展性很好；实现了随机Petri网模型的可达集生成算法和同构马尔可夫链的构造及其稳定状态概率的求解等关键技术；数据结构的设计采用链表的形式，使各种算法都具有较高的执行效率。

In the analysis of longitudinal data, when the clusters size are random, it is still a conventional hypothesis that random effects should have homoscedasticity, Otherwise statistical inference would be more difficult.

类似与固定组容量模型，在组容量随机情况下的纵向数据分析中，假设随机效应方差齐性也是值得怀疑的，需要用统计的方法予以确认。

Because the characteristic is combining explosive, it is advised that using Binary SLNN to solve the problem. In order to test the liability of the results, this study will use random researching method in comparison with Weighted Hungarian Method. It is found that the testing result of SLNN is superior to Weighted Hungarian Method in solution-effect and random searching is the worst one.

由於问题具组合爆炸的特性，故本文拟以自我学习神经网路解多目标指派问题，另为使解答有比较之依据，在此与随机合法解及加权匈牙利法的解答作比较；经测试，在解答品质及稳定性方面，以自我学习神经网路表现最佳，加权匈牙利法次之，随机合法解效果最差。

Preparation and collection of specimens: To kill the rabbits at different time and collect the specimens for pathology, electron microscope, RT-PCR and orthotopic hybridism in situ.

标本留取：分别于术后第2、4周处死假手术组大白兔各2只，于术后即刻随机处死对照组和通心络组大白兔各2只，损伤后3天、1周、2周、4周和6周随机处死对照组和通心络组大白兔各4只，分别留取病理、电镜、逆转录-聚合酶链式反应和原位杂交试验标本。

Methods: A prospective, randomized, single blind and parallel control clinical study enrolled 100 patients with icterohepatitis, who were randomized 1∶1 to two treatment groups; each group was intravenously infused daily over a six-week treatment period:(1) 20 μg of Lipo PGE_1 injection;(2) 20 mL of potassium-magnesium aspartate injection.Results:The Lipo PGE_1-treated patients were more superior in the recoveries of physical characteristics, icteric index and liver functions to the control group.

采用随机对照、单盲方法进行前瞻性试验。100例病毒性肝炎高胆红素血症患者随机分为试验组及对照组各50例，在综合治疗基础上，试验组加用LipoPGE120μg·d-1，对照组加用门冬氨酸钾镁20mL·d-1，两药均加入150mL生理氯化钠溶液中静滴，疗程6周。

According to the theory of extreme value of independent and identically distributed random variables, the reliability of external unbonded presertressed concrete structures is discussed.

论文讨论了体外筋面积的变化对体外预应力梁可靠度的影响，将其离散化为多个正态分布的随机变量，并根据独立同分布随机变量的极值理论，讨论了体外无粘结配筋对结构可靠度的影响问题。

Relying on the mass function, the relations are studied between belief measure and plausibility measure of incoordinate objective random information systems and positive domain reduction and distribute reduction of incoordinate objective information systems.

借助mass函数，研究了不协调的目标随机信息系统中信任测度和似然测度分别与不协调的目标信息系统的正域约简和分配约简的关系，得到了不协调的目标随机信息系统基于证据理论的正域约简和分配约简的方法。

Some new methods of computation for random fixed point index of random 1-set-constractive operator.

利用锥理论给出了随机1-集压缩算子的随机不动点指数的一些计算方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。