查询词典 barrier

Illustrate the reflection principle for a random walk with one absorbing barrier and show the Boyle-Lau algorithm for pricing single barrier options.

1973年，Black-Scholes开创性论文"期权定价与公司债务"的发表标志著期权定价理论的诞生。

In this study, the severe acute pancreatitis specific EN formula was composed based on the rationale of the nutritional mechanism of the disease, and the alanyl- glutminedipeptide was added into the formula. This study was cut in the combining site of clinical nutrition pharmacology and immunology to probe the effect of Gln in the special formula in SAP rat form several aspects including mucous barrier, immunological barrier and systemic inflammatory responses.

本课题研究在成功建立急性重症胰腺炎模型的基础上，在SAP专用肠内营养配方中加入水溶性和稳定性好的丙-谷氨酰二肽，并从临床营养药理学和免疫学的结合点切入，采用免疫学、分子生物学研究手段，重点从肠屏障功能、免疫功能、细胞因子方面研究早期肠内营养加谷氨酰胺防治SAP营养治疗作用机制。

The quasi-elastic barrier distribution D〓 extends to low energy region and enhances the fusion cross section at the sub-barrier energies. It is still needed to do some work to determine the deformation parameter β〓 for light odd-odd nucleus, like 〓Li and to calculate all reaction channels by means of CDCC code simultaneously. It is important to measure the exclusive angular distributions of breakup fragments.

得到参数化的和能量相依的相互作用势公式；发现弱束缚核〓Li+〓Pb阈异常与〓Li的形变参数β〓相关，垒下存在强的吸收势；给出破裂对熔合截面的影响在垒上压底垒下增强；熔合势垒分布向低能端展宽，有利于垒下熔合截面增强等结果；对如何确定轻的奇-奇核的形变参量β〓提出了疑问；需解决如何用从弹散角分布抽取的光学势参数，进行CDCC程序全反应道统一描写；迫切需要破裂碎片关联测量的实验数据。

The magnetocurrents in both antiparallel configurations of triple-barrier system are much higher than that in double-barrier structure.

因此，对于多层铁磁RTD，可通过改变磁化方向来达到调节磁电流的目的，相应地增加了调节磁电流大小的可控参数。

The floating gates, which have a hollow cavity inside, work according to Archimedes' principle of buoyancy. When compressed air is pumped in, emptying the gates of water, the buoyancy of the giant panels will be greater than their weight, and in just 30 minutes the barrier will float above the surface. The gates are attached to the seabed with hinges, which are designed to absorb the force of waves and keep the barrier in place. The gates will only be raised when waves are higher than 1.1 meters, to reduce interruption of the sea currents to a minimum.

这些中空的水闸门，主要依照阿基米德浮力原理操作，当闸门内注入高压空气排水后，闸门受到的浮力大於闸门重量，只要三十分钟就能浮出水面，闸门底部则用轴承固定在海底，再透过细部结构设计能够悉受波动力量，保持闸门的稳定性，而水闸门只有在浪高超过110公分的时候才会升起，把对海水交换的干扰降到最低，其他维护潟湖生态的措施也获得欧盟肯定，所以在2009年4月，取消摩西工程违反自然保育法的决议。

When designing multi-layer packaging, barrier protection may be provided from layers in addition to the barrier layer.

设计多层包装材料的时候，材料的阻隔保护功能不仅来自阻隔材料层本身，还可能同时来自其他的几层材料。

A subsequent water-based clean is very effective in removing yield-reducing defects on the barrier layer due to the conversion of the surface of the barrier layer.

一后来的以水为基础的干净非常有效在除去在障碍上的减少生产量的缺点方面由于障碍的表面转变层分层堆积。

Chinese Banking Industry ; Concentricity of Market ; Economy of Scale ; Entry Barrier ; Exit Barrier

中国银行业；市场集中度；规模经济性；市场进入壁垒；市场退出壁垒

I have purchased the goods on the Australian side of the Customs barrier and I will NOT take possession of the goods until I have passed through the Customs barrier.

我已有在澳大利亚有海关关卡的一侧购买了物品，我不在没有通过海关关卡之前提取货物。

From the potential energy profile, it can be predicted that, the dominant channel of this reaction consists of three steps: the two reactants first form a three-membered ring intermediate (INT1) through a barrier-free exothermic reaction of 19.2 kJ/mol; three-membered ring intermediate (INT1) isomerizes to a four-membered ring silylene(P2) via the transition state (TS2) with an energy barrier of 22.8 kJ/mol; four-membered ring silylene(P2) further reacts with ethene(R2) to form a silicic bis-heterocyclic compound (P3), which is also a barrier-free exothermic reaction of 132.2 kJ/mol.

用CCSD//MP2/6-31G*方法研究了单重态二甲基亚烷基硅烯与乙烯生成硅杂双环化合物环加成反应的机理，根据该反应的势能面可以预言，该反应的主反应通道有三步组成：第一步是两反应物（R1， R2）首先生成了一三元环中间体（INT1），它是一无势垒的放热反应，放出的能量为19.2 kJ/mol；第二步是三元环中间体(INT1)经过渡态TS2异构化为了四元环硅烯（P2），其势垒为22.8 kJ/mol；第三步是四元环硅烯（P2）进一步与乙烯(R2)反应生成了硅杂双环化合物（P3），该反应也是一无势垒的放热反应，放出的能量为132.2 kJ/mol。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了