边界条件

Based on lubrication analysis of journal bearing, the stress distribution of shaft was calculated by using film pressure that calculated as boundary condition of load.

在轴承润滑分析的基础上，将得到的轴承油膜压力作为载荷边界条件，计算了轴的应力分布。

We identify the boundary conditions to be imposed on the laboratory test specimen.

1，我们确定的边界条件对被征收化验标本。

Thermo-mechanical coupling finite element method is used to calculate the six inherent strain components and the angular distortion of the lap joint, and each inherent strain component is mapped into the model in the form of boundary condition for linear elastic analysis, the angular distortions of the lap joint are got.

采用热弹塑性有限元法计算出搭接接头的六个固有应变分量和角变形，并以各个固有应变分量作为边界条件，对搭接接头的有限元模型进行弹性分析，计算出各个固有应变分量对应的角变形。

The paper is to prove the refraction on two kinds of medium interfaces of electric displacement line using the boundary condition of the electric field and Fermat Principle.

利用电场边界条件和费马原理证明电位移线在两种介质界面上的折射。

Having assembled nodal physical matrice and put related boundary condition and loads into the problem, direct Gaussian elimination algorithm is used to obtain the displacement of the model. Finally, stresses on each node are also calculated.

得到节点的组合物理矩阵之后，并施加相关的边界条件和载重来代入此问题中，并直接使用高斯消去法来获得模型的位移，最后可以计算出每一个节点的应力。

Finally, the wave equation of the electromagnetic field of this kind damper isderived from the Maxwells equation. The magnetic flux density at the boundary isassumed to be harmonic, so the analytical result of the wave equation is solved. When therotor rotates, eddy currents flowing inside the conducting material field are caused. Thetangential force acting on the rotor because of the action between eddy currents andmagnetic field is produced. The tangential force causes a retardation torque, which leadsto the increase of power and heating effects.

最后，应用Ahrens的电磁轴承简化模型，从Maxwell方程出发推导了应用于本文所述的被动式电磁阻尼器的波动方程，并用傅立叶级数把矩形磁场展开的谐变磁场作为磁场的边界条件，通过求解波动方程得到磁场的解析解，从而计算了阻尼器对转子的电磁力和由涡流引起的切向力产生的阻尼器附加功耗。

At last, according to three-microphone method, four-microphone with two different ends method and four-microphone method, this paper compare with this three methos from principle, formula and measuring ways.

最后，针对目前驻波管法的三传感器法、改变边界条件的四传感器法和四传感器法三种隔声量测量方法，从原理、计算公式的推导及测量方法等方面进行了比较。

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 boundary conditions between subzones are obtained by applying the technique of field matching to the field expressions in subzones.

由各个子区的场表达式结合场匹配技术给出了子区之间满足的边界条件。

The boundary conditions between subzones are obtained by applying the technique of field matching to the field expressions in subzones.

给出分析复杂盘荷加载谐振腔的变分方法，由各个子区的场表达式结合场匹配技术得到了子区之间满足的边界条件。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。