查询词典 boundary condition

An experiment on forming of cross-hatch on the ablation material surface has been done under the condition of Mach 5 and tur-bulent boundary layer regime.Artifitial disturbances created by randomly setting several pins along a line perpendiculer to the flow direction have shown stochastical character of local cross-hatch and independence of global orderly structure,therefore the pattern appeared fractal behavior.

在外流M＝5湍流边界层状态下，模型为170×300mm￣2蜂蜡平板上进行了烧蚀花纹图案生成的实验研究，通过实验证明了人工安置干扰源并不影响烧蚀材料表面花纹的有序结构，对大面积烧蚀花纹的分析表明，局部花纹结构具有随机性质，因此烧蚀花纹具有分形结构的特性，用分形方法可以大致模拟花纹生成图案。

In the study of the first problem, by using the fixed-point index theorems, we get the existence of boundary value problem in neither superlinear nor sublinear condition.

在第二种形式边值问题的研究中，主要利用Krasnoselskii不动点定理，得到了一些正解存在性定理及正解不存在性定理。

When material is uncompressible, a group of four-sectors solutions and a three-sectors solution in which the elastic-unloading region vanishes are given respectively in the condition of supposing some singularity of curvature on the boundary between two regions.

第一部分首先考虑了不可压缩(ν=1/2)理想塑性材料，在假定区域交界线的曲率有一定奇异性的条件下，得到了裂尖场的一组四区解及不包含弹性卸载区的三区解。众所周知的由高玉臣。

Furthermore, a method of calculating mathematic expectation value of exterminating target, the shooting number of times, the minimum time partition between targets, which can guarantee that they would be exterminated on the far boundary of the killing area and in it ,the shooting density under this condition.

文中给出了在两种形式的电子干扰下，某型地空导弹武器系统发现目标能力的计算方法，进而研究了该条件下消灭目标的数学期望值、射击次数、保证目标在杀伤区远界和杀伤区内消灭的目标之间最小时间间隔、射击密度等参数的计算方法。

Second, dynamic buckling condition is erected after analysis of perfect axial compression member with different boundary conditions, by which dynamic buckling critical load and corresponding buckling modal are obtained. These indicate the difference between dynamic buckling and static one.

其次，通过对不同边界条件理想轴心受压构件进行分析，建立动力屈曲条件，获得了动力屈曲临界荷载及相应屈曲模态，表明了动力屈曲与静力屈曲的差异。

Then, stability boundary is obtained through the critical condition of inductor current conduction mode of the forward converter. The nature of this instability phenomenon is analyzed and considered as border collision bifurcation, and its mechanism is further discussed.

根据Forward变换器电感电流导电模式的临界条件得到了相应的稳定性边界，并对低频不稳定现象的边界碰撞分岔本质进行分析和讨论。

Flow pattern computation is carried out by using a modified function of stream function Laplace equation proposed by the author, and the flow fields of heterogeneous goafs with complicated shapes and along the boundary direction can meet the condition of orthogonality of flow net, and at the same time the orthogonality can be controlled by the precision of split meshes.

指出用 流函数Laplace方程修正函数，对复杂形状和沿多边界方向非均质的采空区流场计算，仍能满足流网正交，其正交性可通过剖分网格精度来控制。

In scientific selection of dewatering plans during the excavation of a deep foundation pit, the muti objective fuzzy decision making method is used, which comprehensively considers various indexes such as technique, economy, construction and operation. The fuzzy decision making model of scientific selection under the condition of complex geologic and boundary conditions is established, and the weights of quantitative and qualitative objectives are analysed, and the scientific decision result from synthesizing four factors is obtained.

针对多种深基坑降水方案的科学选择问题，采用综合考虑技术指标、经济指标、施工指标和运行指标的多目标决策方法，对复杂的地层与边界条件下多基坑降水方案的科学选择建立了模糊决策模型，分析了定量和定性目标各指标间的重要性权重，得到了综合各因素的科学方案决策成果，为工程建设的降水方案优选决策提供了科学依据。

The performance boundary of irreversible Carnot heat pump under the condition of mixed heat resistance is studied.

研究了混合热阻条件下不可逆卡诺热泵的性能界限，导出了该热泵最佳泵热率与泵热系数的关系，揭示了不可逆因子对热泵的影响，指出了有限时间热力学理论对实际热泵的重要指导意

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