查询词典 stopping

On the basis of the theory of option pricing,We study the connection between America call option and European call option;Under the assumption condition of Black-Scholes formula ,use the theory of martingales and stopping time,get the conclusion that: the price of America call option equals the price of European call option; Discuss some numeric computing methods of the put America option pricing, with the invarional inequaility for optimal stopping, prove the boundary property of America put option price ...

基于期权定价的基本理论，研究美式看涨期权与欧式看涨期权之间的关系；在Black-Sc holes公式假设条件下，利用鞅和停时理论，得美式看涨期权的价格与欧式看涨期权的价格相等；探讨美式看跌期权价格的数字化计算，在相关假设条件下，利用基于最优化时的变分不等式证明了美式看跌期权价格的有界性，并介绍了几种美式看跌期权价格的数字化计算方法。

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

The electronic stopping and nuclear stopping are well known ionization, excitation and elastic collision of particles, the nuclear reaction stopping comes from the contribution of secondary particles emitted from nuclei during nuclear reaction.

对铁离子在水中产生的能量沉积和铁离子与水介质发生核反应后产生的次级碎片的能量沉积进行了模拟研究，得到了通过核反应过程产生次级粒子所导致的剂量贡献。

It have four work manner of whole machinetool whole automatism , whole manchinetool half automatism , stand-alone half automatism , stand-alone hand operation . Whole system have beforehand opening , startup , beforehand stopping , exigence stopping , exigence baking off and noting count . It have apiece drive online or leaveline , exceed time protecting , short circnit protecting , lose press protecting , hydranlic pressure over great protecting , clamp lack protecting . It have failure give an alarm and failure displap . It have work manner display , work predicement display .

它具有全机全自动，全机半自动，单机半自动和单机手动四种工作方式，整个过程具有预开，启动，预停，紧急停止，紧急后退和记数功能，具有各动力头在线/离线选择，具有超节拍保护，短路保护，过载保护，失压保护，液压过大保护，夹紧力不足保护功能，具有故障报警和故障显示功能，具有工作方式显示，工作状态显示功能。

This paper also gave a method to solve the optimum red time of two-phase signalized intersection.According to the relationship between the optimum red time and the bus arrival time,bus stopping time loss and the green time loss by bus stopping,the optimum distance between the bus stop and the stop line of the signalized intersection was determined.

给出了两相位十字交叉口最佳红灯时间的解法，并根据最佳红灯时间与公交到达时间、停靠服务损失时间及其引起的绿灯损失时间之间的关系，得出公交停靠站与信号交叉口停车线之间的最佳距离。

The effects of bill hypothecation include: the proving effects of right, it is the analyses about the way that the holder proves that he is the owner of the right according to the endorsement; the effect of stopping the countervailing power, it is the analyses about the way of stopping the apply of the obligator's right of defense against the pledger; the effect of transfer endorsement, i

文章的第四部分，对票据质押权人实现质权的方式做出解释和分析，1、向付款人请求付款，是主债务未到期而票据已到期时，票据质押人作为主债权人，即可以依背书的连续性证明自己权利的存在，持票据提示付款人付款的问题。2、行使票据追索权，是付款请求权的一种补充或保障性的权利，作为第二次请求权有效地起到了保障票据债权流通、票据制度规范运行的作用。3、票据届期与其所担保的债权的届期问题，由于票据的到期日与其所担保的债权的期限有所不同，所以在票据债权的实现上有异，现实中票据的到期日与其所担保的债权的期限的不同，本文就票据所担保的债权与票据的到期日同时届期、票据的到期日先于被担保债权的期限到达、票据到期日后于被担保债权的清偿期到达，这样三种情况进行分析。

Base on the classical problem of the theory of optimal stopping──the secretary problem,k-th choice problem is worked out(k managers choose k secretaries ).The optimal stopping rule is given,and we proved that the optimal value of probability is the kth item of Poisson distribution with parameter k.i.e.e￣-K/k!.

从最优停止理论的经典问题──秘书问题出发，构想了K个经理从N个姑娘中各选一秘书的问题，证明了其最优规则，得出了概率最优值是参数为K的泊松分布的第K项，即e￣k￣k／k从！

The results of simulation show that three-winding single-phase capacitance motors with wye-connected drive ventilated machine load can proceed to AC braking to realize fast stopping. The capacitance number of changes can regulate system braking stopping time. When capacitance is certain, can establish the resistance to limit the electric current and electromagnetical torque in stator circuit during the braking process, regulating braking stopping time.

仿真结果表明，Y接法的三绕组单相电容电动机带通风机负载时可以进行交流制动实现快速停车；通过改变电容的数值可以调节制动停车的时间；当电容一定时，可以在定子电路中串联电阻来限制制动过程中的电流和电磁转矩，调节制动停车的时间。

To extend the SIC technique to turbo-coded systems, an iterative IC with ordered SIC at front-end is proposed. To avoid unnecessary computation, the ordering information obtained from SIC front-end is utilized in a low-complexity stopping criterion with high efficiency. In addition to bit-wise interference cancellation, the SIC technique is also applied to code-block-wise interference cancellation. And, only the bits in incorrect blocks should be preceded to the next outer iteration. As a result, huge amount of computational complexity can be saved, and better performance is achieved.

最后，我们延伸序列式干扰消除的概念至有通道编码的系统，与涡轮码解码同时考虑，首先根据排序资讯，提出一提早停止（early-stopping）准则以减少涡轮码解码时不必要的运算，与其他提早停止准则比较，在几乎相同的检测能力下，此准则具有快速及低计算复杂度的特性，接著提出一包含前述准则之递回式干扰消除法，将序列式干扰消除运用在符码及跨级之码块干扰上，并且只有被检定为错误的编码区块讯号需要再进一级的递回检测，此法不仅在效能表现上更为优越，也节省了大量且不必要的计算量。

His book "Stopping Time" is incredible, and documents his work as he pioneers incredibly fast flash photography, which allowed him to capture something at speeds upwards of 100,000th of a second.

他的书《Stopping Time》简直太棒了，文献记录了他作为快速闪光摄影术的先锋，让他的捕捉速度可以达到10万分之一秒。

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％。