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The regular boundary element method and adaptive boundary element method Yu Dehao, 1989

正则边界元方法与自适应边界元方法

Comparing with the results of the relative slipping boundary condition and the boundary condition related to constitutive...

结合相对滑移边界条件及与本构关系相联系的滑移边界条件进行对比分析，得到了不同滑移参数间的解析关系式。

The grain model of SrTiO3 was designed based on their crystal habit for {111} and {100} planes as its major grain boundary; the shape may be different with the change of the relative area of the two boundary planes.

根据SrTiO3陶瓷中晶粒以{100}和{111}晶面为主要晶界的结晶习性，以及晶粒形状随{100}和{111}占晶界面积不同而发生变化的特点，设计了适合SrTiO3晶粒形状特征的晶粒模型。

Concerning with specialty of structure and flow characteristic of turbulent boundary layer over riblet surface,the testing method of turbulent boundary layer's flow parameters of riblet surface is studied deeply.The win tunnel and testing equipments used in this experiment are improved accordingly and feasible approaches to enhance experimental veracity are also discussed.

针对脊状表面的结构特点及其湍流边界层的流动特性，深入研究了基于热线技术的脊状表面湍流边界层流动参数的测试方法，对所使用的风洞及测试设备做了相应改进，并探讨了提高实验测试精度的可行性措施。

Thirdly,we study certain Riemann boundary value problems and Singularintegral equations with values in a universal Clifford algebra 〓,by com-bining the classical methods of solving Riemann boundary value problems andsingular integral equations with the Taylor's expansion of regular function in Clif-ford analysis,proving a lemma which is similar to the Painleve theorem in theclassical complex analysis,and the Plemelj formula in Clifford analysis,we obtainthe better results under weaker condition than before.

第三，本文第一次借助于用来解决经典的Riemann边值问题与奇异积分方程的方法来研究Clifford分析中的某些Riemann边值问题与奇异积分方程，获得了在比以前文献中条件更弱的情况下，结论更广的结果，并且，它为更进一步地解决在Clifford分析中一般的Riemann边值问题与奇异积分方程提供了基本的解决思想，为这一新的研究领域奠定了基础。

The surface of conventional engineering part is composed of simple analytical surfaces and four-boundary ruled surface primarily. Therefore a point cloud segmentation method based on those feature surfaces is proposed. Several algorithms to identify the simple analytical surface feature are investigated and discussed. The theory of fitting scattered point to B－Spline and Bézier surfaces is introduced and a fitting method based on four boundary and point set is also discussed. Moreover, anew method to recover the fix-radius rolling ball blend is proposed and discussed in detail.

常规工程零件的外表面中包含了大量的特征曲面，如简单解析曲面和四边直纹面，因此，本文提出基于特征曲面的的点云分割方法，研究几种识别简单解析曲面的算法；研究由点云拟合B－Spline和Bézier曲线的理论基础，总结曲面拟合的几种方法，提出一种反求定半径滚球圆角的方法。

The saw-toothed geometric boundary of Cartesian Grid has bad influences to the simulation convergence. However, under the circumstances that grid is smooth (i.e. without the saw-tooth boundary), the simulation converges better as the grid level increases.

卡氏网格在几何边界所形成之锯齿状边界对於模拟计算之收敛性有不良的影响，然而，在边界平滑无锯齿状的情形下，卡氏网格层数越多，程式收敛情形越佳。

Results:1 CT demonstrated clear boundary and homogenous density in symptomless, near oval and symmetry. Normal cross section areas of scalene anterior muscle is 1.3793±0.0948cm2, normal CT value is 54.594±2.0106; 2 Cross section form of patient anterior scalene muscle is irregulation, adherence to tissue around, boundary not pure. Statistics display this area and CT value has obvious significant difference in symptomless group and patient group(P.01); 3 After one course, it shows 87.5%/100% of success rate and valid rate respectively in the short-term, as well as 71.8%/93.75% in the long-term.

结果：1 无症状者前斜角肌横断面形态双侧对称，成近椭圆形，轮廓清晰，与周围组织界限清楚，两侧横断面面积及CT值相近，C6上缘-C7上缘水平正常前斜角肌横断面面积为：1.3793±0.0948cm2 ，CT值为：54.594±2.0106；2 前斜角肌综合征患者患侧前斜角肌横断面形态不规则，与周围组织粘连，界限不清，统计显示患侧横断面面积较正常值增大，P＜0.01，差异非常显著，CT值较正常值增大，P＜0.01，差异非常显著；3 手法治疗1疗程后，随访显示近期优良率87.5%，有效率100%，远期优良率71.8%，有效率93.75%。

Results:1 CT demonstrated clear boundary and homogenous density in symptomless, near oval and symmetry. Normal cross section areas of scalene anterior muscle is 1.3793 0.0948cm2, normal CT value is 54.594 2.0106; 2 Cross section form of patient anterior scalene muscle is irregulation, adherence to tissue around, boundary not pure. Statistics display this area and CT value has obvioussignificant difference in symptomless group and patient group(P.01); 3 After one course, it shows 87.5%/100% of success rate and valid rate respectively in the short-term, as well as 71.8%/93.75% in the long-term.

结果：1无症状者前斜角肌横断面形态双侧对称，成近椭圆形，轮廓清晰，与周围组织界限清楚，两侧横断面面积及CT值相近，C_6上缘-C_7上缘水平正常前斜角肌横断面面积为：1.3793±0.0948cm~2，CT值为：54.594±2.0106；2前斜角肌综合征患者患侧前斜角肌横断面形态不规则，与周围组织粘连，界限不清，统计显示患侧横断面面积较正常值增大，P＜0.01，差异非常显著，CT值较正常值增大，P＜0.01，差异非常显著；3手法治疗1疗程后，随访显示近期优良率87.5％，有效率100％，远期优良率71.8％，有效率93.75％。

The full field boundary element solutions are solved for the small—scall yielding problem of boundary layer formulation.

针对双材料界面裂纹边界层构形计算了小范围屈服问题的全场解，并与现有理论和有限元结果进行了比较。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。