查询词典 boundary condition

In quantum case,we ex-tend the Sklyanin's approach and find that unitarity condition of quantum R-matrix issufficient to construct commutative quantities with boundary,and its reflection equationsare obtained.

在量子情形下，我们把Sklyanin的构造方法扩充到一般的情形，即量子R矩阵只拥有幺正性条件。我们给出了此时守恒量的构造办法，及其相应的边界反射方程。

In addition, the study area can be layered vertically and decomposed horizontally by the properties of the soil and then the inte rfaces of every layer and region are connected by proper physical condition. So the initial and boundary value problem is well posed .

模式模拟时可依土壤之性质将整个模拟区域做垂直方向分层与水平方向分区之处理，计算时层与层之间、区与区之间再以适当之物理连接条件连接，使其构成一适当之问题。

No matter B2B, B2C or C2C, penetrate the service condition which Internet the timeliness and 24 hours whole year not rests, may let the enterprise the business hour no longer receive limits, more further is the network does not have the national boundary, each consumer no longer subordinates a Yu area or the country, so long as the consumer links on Internet to be allowed from local to have to the world erects the goods which the electronic commerce website the enterprise purchases needs, moreover business transaction also may on-line penetrate the website directly in to complete, not only may greatly reduce the enterprise cost, also may let the consumer have the more time long travel to window-shop to the network, Enjoys the shopping the pleasure to utilize the ASP technology and the network database principle, I has developed an on-line shopping system based on the B/S pattern.

不管B2B、B2C或C2C，透过Internet的实时性及24小时全年无休的营运状态，可以让企业的营业时间不再受限，更进一步的是网络无国界，每一个消费者已不再隶属于某一地区或国家，只要消费者连上Internet就可以从本地向全世界有架设电子商务网站的企业购买所需的物品，而且买卖交易也可以透过网站间接在在线完成，不但可以大大降低企业本钱，也可以让消费者有更多的时间悠游于网络逛街，享受购物的乐趣。运用ASP技术和网络数据库原理，基于B/S模式我开发了一个网上购物系统。

The relation between the length of plastic zone along the crack line and external load is established by the matching condition of the elastoplastic fields on the boundary.

利用脆断区长度和荷载之间的关系，从理论上分析了断续节理产生劈裂破坏的贯通机理，并且确定了断续节理岩体发生劈裂破坏的强度。

When the gas flux is constant, the ratio of reduced resistance is improved with the increase of the water stream velocity. However, the relationship between the gas flux and the ratio of reduced resistance is more complex. When the water stream velocity is constant, if the gas flux is small in contrast, the effectiveness of reduced resistance is not obvious. But when the gas flux increased, the jetted gas will form """"archform"""" which will augment the shape resistance. In this condition, resistance could not be reduced and could even be increased, if the gas flux continues to be increased. So that there needs setting a baffle called step, which introduces the jetted gas into the turbulence boundary layer. In this case, the shape resistance may be fairly great. Besides, the waterline of model has also some effect on the ratio of reduced resistance, which acts on the size of wave. If waterline is deep, the wave could not affect the deployment of microbubble layer, so there is almost no effect on ratio of reduced resistance. However, the wave would affect distributing of microbubble layer under the model so that the gas could leak out from the two sides of model and directly affect the ratio of reduce resistance if the waterline is very small. Whether installing the dashplate or not has also the great influence on the effectiveness the ratio of reduced resistance. From the results of experiment, conclusion is that adding dashplate will greatly improve the effectiveness of reduced resistance.

当喷气量一定时，水流速度增大，减阻率提高；喷气量与减阻率之间的关系比较复杂，速度一定时，如果喷气量较小，减阻效果就比较差，但当喷气量增大的话，喷射出的气体就会形成一个&拱度&，增加了船模的形状阻力，在这种情况下最好采取断阶喷气，把气体引入到湍流边界层中，在这种情况下，船模的形状阻力比较大；船模的吃水对减阻率也有一定的影响，主要表现在波浪大小上，如果吃水较深，波浪影响不到微气泡层的分布，对减阻率不会造成太大影响，如果吃水较浅，波浪就会影响到微气泡层在船模底部的覆盖情况，可能会有部分微气泡从船模两侧泄漏，这样就直接影响到了减阻效果；是否安装压浪板，对减阻率也有较大的影响，从试验结果可以看出，在船模尾部加设了压浪板时，减阻效果明显得到改善。

It is concerned with the optimal design of cylindrical shell on minimax deflection and minimal compliancy with arbitrary axisymmetrical boundary conditions and radial pressure, under the condition of the volume being constant.

研究在任意轴对称边界条件下和任意轴对称分布载荷作用下体积保持常数的圆柱壳的两类优化设计问题：极小化圆柱壳的最大挠度和极小化圆柱壳的柔度。

Compared with the conventional analytic methods, the author studies the feasibility that the elastic bearing model is used to simulate the boundary constraint condition of the enrockment.

引入弹性边界模型，对比传统分析中对边界约束的处理，研究用弹性边界来模拟堆石体边界约束条件的可行性；选用规则典型的坝体，研究面板堆石坝的面板及堆石体的应力应变规律，特别是周边缝的变形规律；分别讨论了岸坡坡比、坝前水深、坝高、河床底宽等几何参数对弹簧系数取值的影响，确定弹簧系数的取值范围，给出了可用于实际工程计算的最佳取值范围；以松山面板堆石坝作为工程实例，验证弹性边界模型的实用性，并为工程建设提供了一定的参考。

Grouting in the around of infalling boundary and informing wall to prevent water based on clear knowning the condition of geology and hydrology. This method not only assure the safety of production but also protect the water resources around the colliery.

注浆封堵技术是在查清矿井水文地质条件的基础上，通过对进水区边界实施注浆工程，形成人为的挡水墙，从而阻断底板水的涌入，既解放了受水威胁的煤层又保证了矿井的安全生产，同时也保护了矿井周围水资源。

In the first part, first of all, we have a priori estimate for solution of the reaction-diffusion equation with initial condition and Dirichret boundary conditions. Then, we construct a semidiscrete Legendre pseudospectral scheme, and have a priori estimate for approximate solution. We discuss the asymptotic stability of approximate solution. At last, we get a error estimation on large time for solution of the semidiscrete system.

首先，对此类方程初边值问题的解进行了先验估计；然后建立方程半离散的Legendre拟谱格式，并对近似解进行了先验估计，讨论了近似解的渐近稳定性；最后，得到了半离散系统解的长时间误差估计。

Y. Liu. It may be more important that our results show that the"adiabatic condition" given by Liu is incorrect, and that at least in the system with a sinusoidally oscillating boundary there is no any non-trivial Berry phase acquired.

也许更为重要的是，我们证明了个别作者的&绝热条件&是不合理的，而且至少对于做正弦振动的边界，在正确的绝热近似下，该系统不存在非零的Berry相位。

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