查询词典 geometrical boundary condition

So the West is scientific, the non-West is not; physicians are scientific, midwives and alternative healers are not; chemists are scientific, wives and husbands in their kitchens are not. This process is most pronounced, in general, in those societies that border occident and orient. If our focus is on science, then the process of orientalizing and occidentalizing should be most pronounced just at the boundary between science and the humanities, and even more so at the boundary between the physical, the natural, and the social sciences.

西方是科学的，非西方则不是；医师是科学的，接生婆和江湖术士则不是；化学家是科学的，厨房里的妻子和丈夫则不是；总体上，这一过程非常明显，在那些社会之中界定着西方的和东方的；如果我们的焦点是在科学上，那么西方化和东方化的过程应该是在科学与人文的分界点上是最明显的，甚至是在物理科学、自然科学和社会科学的分界点上是最明显的。

When Nb segregates at grain boundary, the bonds across grain boundary are strengthened, while the interactions between Nb and its neighboring atoms are weakened.

Nb和Ti周围的Fe原子相互作用有所减弱，而Nb和Ti原子两边的跨晶界的原子间的相互作用加强，反映了替位Nb、Ti原子强化Fe晶界的作用。

In these boundary conditions, Boundary Integral Method has been discussed as the most important part. We use the hybrid FEM combined with BIM to analyze the electromagnetic scattering properties of objects and discuss the advantages of this hybrid method in truncating computational region、 accuracy、efficiency、 versatility and so on .

重点在于应用结合边界积分方程这一开域边界条件的混合有限元算法实现对目标散射特性问题的分析，探讨和研究此混合算法在求解目标散射问题时在缩减求解域、实施的难易程度、精度、效率和通用性等方面上的优势。

Because mechanical finger's outflow boundary change has the limitation, this kind of jig may clamp the work piece which takes also correspondingly to have the similar surface, simultaneously as a result of mechanical finger's quantity which installs is limited, but the jig itself does not replace, finger's outflow boundary change was not also big, causes the capture strength not to have the very big compatibility.

由于机械手指的外缘变化具有局限性，这种夹具可以夹取的工件也相应的必须具有类似的表面，同时由于安装的机械手指的数量有限，而夹具本身并不替换，手指的外缘也变化不大，导致了抓取力也不具有很大的适应性。

A boundary layer numerical solution was used for the computation of combustion in hybrid rocket motor according to the boundary burning theory.

引 言混合推进[1]的概念自从20世纪30年代提出之后，混合火箭发动机的燃烧问题就始终占据着重要的地位[2]。

For reconstruction from contours, this dissertation uses Active Contour Model to check the boundary contours. The algorithm can generate single, continuous and close contours quickly. For reconstruction from voxel, this dissertation presents an algorithm to trace the boundary contours from segmented regions based on Active Contour Model. The algorithm can trace the contours of inter and outer connected multi-regions correctly and accurately, and can prevent tracing from jumping out to the neighbor region, also can define the contour precision and contour key points actively as snake is growing up.

对于基于轮廓线的表面重建，利用主动轮廓模型（Active Model，又称Snake Model）来完成断层图象上目标轮廓的提取，可以获得单象素连通的封闭的目标边界轮廓；针对基于体素的表面重建中实施了分割后的体数据，提出了一种基于主动轮廓模型完成二值图象中轮廓跟踪记录的方法，可以对同属于重建目标的内外邻接多区域进行正确和准确的边界轮廓跟踪，使得在跟踪当前轮廓时不会跨越到相邻轮廓，且主动轮廓的精度可以根据参数交互决定，尤其是能够在主动轮廓成长的同时主动定义轮廓关键点。

As a preliminary theoretical exploration, a limited series of stream function was employed to study the characteristics of the reattachment boundary layer. The tentative analysis showed that the reattachment boundary layer of the circular cylinder, so long as it began at the effective reattachment region discussed above, would be developing to its reseparated point downstream the cross section of the cylinder, which essentially gave the new idea RCDR a theoretical cycle.

本文提出的&再附—减阻&机制可表述为：柱面上扰流元件后向锐缘处诱发的流动分离，既改变了柱面压强分布格局，又破坏了柱面附近的流动状态；若扰流元件锐缘后方流动在圆柱壁面上再附，形成再附边界层，再附边界层将沿流向发展，直至越过柱面最大迎流截面之后，才从圆柱面上分离，致使分离流的尾涡区变窄，绕流阻力降低。

They are:①completed total 8 000 km long natural seismic profiles cross the northern boundary and central part of the plateau, identified several deep-cut lithospheric faults and low velocity and low density bodies under the central part of the plateau related to Cenozoic volcanic eruption, the Tarim block subducted beneath the Altun Mts;②found the evidence that the Altyn Tagh fault formed in 220～240 Ma and at least 400 km sinistral offset since, and determined quantitatively deformation in Cenozoic;③discovered 350 km long high-ultrahigh pressure metamorphic belt in the south border of the Qilian terrane,which brobably represented the Early Paleozoic boundary between the North China and Yangtze plates;④according to new discoveries of caledonian ophiolite,granite are subducted complex established paleo-collision orogenic framework of northern Qinghai-Tibet plateau;⑤proposed a new model .

本文展示了中法1995～2000年青藏高原北部地学研究的如下主要新进展：①完成8 000 km长的青藏高原北部及中部天然地震岩石圈探测剖面，确定若干条岩石圈断裂，发现与新生代火山喷发有关的青藏高原中部深处的低速、低密度体，塔里木地块俯冲于阿尔金山之下；②提出阿尔金断裂形成于220～240 Ma和左行平移400 km的科学依据及确定其新生代变形量；③确定祁连南缘350 km长的高压-超高压变质带，提出其可能代表早古生代时期北中国板块与扬子板块之间西部界限的新认识；④根据加里东期蛇绿岩、花岗岩及俯冲杂岩带的新发现，初步建立了古碰撞造山格架；⑤提出高原隆升的&地幔底辟和内向陆内俯冲&的新假设。

Results of EBSD show that most of the reversed austenite in the steel treated by QT distribute along the grain boundary, but in the steel treated by two--phase region heat treatment the austenites distribute uniformly along all kinds of boundaries, especially also along the lath martensite boundary in the grain, so the cryogenic toughness can be also improved even the amount of austenitic is lower than that in the steel treated by QT process.

EBSD结果则表明：经两相区处理，回转奥氏体不仅在晶界和板条束界形成，也在晶内的板条界上形成，因此即便在其含量低于淬火+回火处理的条件下， 9Ni钢的低温韧性也有明显提高，证明回转奥氏体的分布也是影响9Ni钢低温韧性的一个主要因素。

SF-2 boundary lubricated bearings increase:Acid poly A with formaldehyde, with high wear resistance, bearing surface arrangement of the law must be fitted with a storage pit filled with grease, especially for high load low speed of rotation, rocking motion, and frequently borne, the opening and closing the difficult parts of the formation of lubrication in boundary lubrication conditions, long-term use without refueling and maintenance, where the fuel bearing life can be more extended, currently applicable to metallurgical machinery, mining machinery, hydraulic machinery, automobile parts, construction machinery, agricultural machinery.

SF-2加界润滑轴承：酸多聚甲醛一高耐磨性，轴承表面的法律安排，必须配备与油脂填补了蓄水坑尤其是高负荷低转速旋转，摇摆运动，并经常承担，开幕和闭幕的困难部分在边界润滑条件下，长期不加油和维修，那里的燃料轴承寿命可以更延长，目前适用于冶金机械，矿山机械，液压机械，汽车零部件，工程机械，农业机械使用润滑形成。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。