孔洞

Therefore,the complicated problem is simplified into asolving procedure of a group of infinite dimensional algebra equations.In thefact,not only is a general solution of the problem obtained,but also a method tocompute the dynamic thermal stress distribution at the surface of the cavity afterthe definition of the coefficient of the dynamic thermal stress distribution isgiven.

事实上，不但得到了单连通区域或复连通区域型二维孔洞表面的动态热应力分布问题的一个一般的解析解，而且，在定义了非耦合和耦合无量纲化动态热应力分布系数后，推导出计算单连通区域或复连通区域型二维孔洞表面的动态热应力分布的方法。

Multiple experiments include whole sphere and sphere with cracks due to some spheres have a few cracks in the shell equatorial plane after welding. Then, the nominal compression stress-strain curves corresponding to different included angles θ between horizontal plane and welding line were plotted.

由于其中某些空心球在焊接时出现了孔洞，故分别做了完整和焊接出现孔洞的两种情况下的多组实验，得出了焊缝与水平面夹角θ成不同角度时压缩的名义应力－应变曲线。

First, from room temperature to 500oC, the shell structure is amorphous with crinkly and airtight character. The shell structure begins to change into γ-Al2O3 and α-Al2O3 at 900oC. The surface of shells shows nano-sized pores at 900oC from SEM and BET analyses. When heated to 1000oC and 1100oC, the shell forms stable α-Al2O3 structure with smooth surface. Cracks often occur at the triple grain junctions. The specific surface area and the total pore volume of the hollow spheres increase with the calcination temperature.

首先，将锻烧温度由室温提升至500℃时，球壳属非晶相皱褶状致密结构；在900℃时开始有γ-Al2O3相及些许的α-Al2O3相出现，由SEM及BET结果得知，900℃之球壳表面有许多奈米级孔洞出现；当加热至1000℃和1100℃时，球壳形成稳定相之Al2O3结构，壳层表面趋於平滑，且球壳在晶界处有微裂缝存在；由BET 结果得知，比表面积及总孔洞体积会随锻烧温度之增加，有增加之趋势。

For the composites with a low content of TiC particle, the rupture manner was mainly the nucleation of cavity and following ductility splitting fracture. But for the composites with a high content of TiC particle, the cracking and decohesion of TiC particles were the main rupture mechanism. For the composite containing a middle TiC content, the rupture mechanism consisted of the above two styles, but the former was the dominating mechanism and the later was the subordinate mechanism.

对TiC体积分数较低的钢基复合材料，拉伸过程中TiC颗粒界面上的孔洞形核及随后塑性撕开机制是其断裂失效的主要机制；对TiC体积分数较高的钢基复合材料，拉伸过程中TiC颗粒的开裂及脱落是其断裂失效的主要机制：对TiC体积分数介于上述两者之间的钢基复合材料，拉伸过程中TiC颗粒界面上的孔洞形核及随后塑性撕开机制在其断裂失效过程中占主要地位，而TiC颗粒的开裂及脱落占次要地位。

Based on a nonclassical theory of plasticity and the continuum damage mechanics,a damage constitutive equation is obtained for the ferrite phase with the damage evolution law for mixed hardening materials from an ellipsoidal void model under particular coordinates,where the void shape variation is considered.

基于非经典塑性理论和连续介质损伤力学，利用在一个特殊坐标系下基于椭球形孔洞模型得到的可考虑孔洞形状变化混合强化材料的损伤演化率得到了铁素体相的损伤本构方程，通过混合物理论利用铁素体和渗碳体相各自本构关系并考虑其几何特征得到了珠光体团的损伤本构模型。

Researched the reservoir developed feature and changing regularity laterally,predicted the reservoir distributing regularity,established the reservoir geological pattern, synthetically evaluated and predicted good reservoir distribution and favorable exploring goal .point out that the reservoir interzone was fissure-pore type, outer zone were fissure-hole and cave types,what was significant to the next exploration.

对单井剖面的储层发育特征，储层横向变化规律的研究，分析预测了储层的发育分布规律，建立了储层地质模型，综合评价预测了优质储层的分布和有利的勘探方向，指出内带主要以裂缝—孔隙型储层为主，外带以裂缝—孔洞型、孔洞型储层为主。这对该区的下一步勘探具有重要的现实意义。

By this study, we may find an optimized membrane pore size for bone cell regeneration. Base on this research, this polymer membrane can be used on the application of guided tissue regeneration and guided bone regeneration.

对於不同表面孔洞薄膜也许能够定义出对於骨细胞再生之理想孔洞薄膜，预期应用於引导组织再生与引导骨再生薄膜。

To reduce over-segmentation in the watershed segmentation, a novel mean filter is proposed to suppress some minima.

并提出一种简单有效的"孔洞"填充方法用来填充其中的"孔洞"。

Y phase. This indicate that basal part is not combine with second phase particle tightly, just equal to y phase inlaying P phase?s countless holes, this is the principle of the cutability of nonleaded freeutting brass.

可以认为，基体β相中存在着无数微小孔洞，孔洞中又存在一个体积稍小一点的γ相微粒，当车刀碰到γ相时，切屑自动折断，这是无铅易切削黄铜的切削原理所在。

Our study indicates the pores in microspheres were formed by liquid-liquid phase separation induced by nonsolvent infiltration. The porous zone propagated inward with the increase of solidification time.

固化试验结果显示微粒内部之孔洞，为非溶剂渗入微粒中，造成液-液相分离所形成，随著以水相萃取时间之增加，孔洞往中心移动。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新