动态地

This article reviewed synthetic technology,structure,properties and applications of star-shaped LCBR,including current status on research,production and developments.

本文较详细地介绍了星形低顺式聚丁二烯的合成工艺、结构、性能和用途，并对国内外星形LCBR的研究和生产情况及其发展动态进行了简单的概括。

The modified particle swarm optimization is utilized to solve the proposed reactive power optimization model; and combining with non–stationary multi-stage assignment penalty function, the reactive power optimization problem is transferred into a problem to solve extreme-value without constraints, thus the calculation accuracy and global convergence ability of MPSO are effectively improved, and power grid company can achieve maximal economic benefit by means of the proposed algorithm.

应用改进粒子群优化算法求解该无功优化模型，并结合动态调整罚函数法将无功优化问题转化成无约束求极值问题，从而有效地提高了改进粒子群优化算法的全局收敛能力和计算精度，使电网公司取得了最大经济效益。

Time series has been widely applied in the real world; traditional methods can hardly solve the dynamic environment issue resulting from the assumption of stationary process.

时间序列被广泛地运用在真实世界中，不过传统分析方法却因为稳态数列的假设而出现了动态环境的问题。

While doing stock investment analysis with the index, one cannot compare the level of PE ratio in a stationary state, instead they should judge the changing trends of the future in a dynamic way.

在用市盈率指标进行股票投资分析时，不能静态地比较市盈率的高低，必须以动态的、发展的观点来判断市盈率未来变动的趋势或可能性。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

The volatility of Chinese stock market is investigated using the dynamic version of stochastic volatility model, and Bayesian analysis based on MCMC is introduced to improve the parameters estimation in stochastic volatility model.

采用动态随机波动性模型实证研究了中国股票市场的波动性。通过基于马尔可夫链蒙特卡罗模拟的贝叶斯分析方法，较好地估计了随机波动性模型中的参数与波动性序列。

It has the main advantages of stochastic dynamic programming and nested Benders decomposition simultaneously, and can be used to deal with problems with large number of both stages and state variables.

这种算法可以综合随机动态规划和嵌套Benders分解的优势，有效地用来处理较多阶段和较大维数状态空间的问题。

Especially, the stochastic variable was introduced to the model to represent the phenomena of the stochastic extinction and recolony of the cocal population, that is one of the typical feature of the metapopulation.

这是一个离散的动力系统。利用动力系统稳定性和数值分析的方法，分析了种群变化的动态规律及其原因。其次，通过引进随机变量，很好地描述局域种群的灭绝和繁殖的随机现象。

In addition, Grid provides a highly dynamic environment in which the services available and the requests of the users may change continuously, plus that the resources in the Grid are not storable, so it implies that today's computing capacity can not survive till a far future.

同时，网格是一个高度动态的环境，系统中的服务资源和用户的请求都会不断地发生变化，并且网格资源是不可储藏的，也就是说今天的计算能力不能留到将来使用，因此资源预留在网格计算中起着十分重要的作用。

Each link in the marketing is stringed by contract and agreement, realizing the dynamic management of product and agency.

提出了一种基于 WEB的企业营销解决方案，以合同和协议为线索，把营销活动中的各个环节有机地串联起来，实现了产品和经销商的动态管理。

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％。