可分解的

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

It is prove that groups of order p2 can be divided into two kinds in the isomorphism sense:(1) cycle group ;(2)commutative group which can be written as a product of two cycle proper-subgroup of order p.

证明了在同构意义下p2阶群共有两类：一类是循环群，一类是可分解为两个p阶真循环子群乘积的可换群。

Plastic should lower 3 steps, because plastic is a step to add melt resin material to cyclinder , Higher stick of resin material ,higher screw back pressure. Screw speed differs depending on decomposing temperature of resin material ,Higher screw speed ,Higher trim force of resin, higher cyclinder temperature. Some resin material may decomposes so it set screw speed in mid-speed such as 45-75%, In plastic step setting screw back pressure is very important, Higher screw back pressure ,higher quality of product screw back pressure make resin structure order, Molding product is beautiful and volume stable.

再复杂的熔胶旋转过程最多不会超过三段，因为熔胶本身就是存在于把胶熔进料筒的过程，如果原料粘度大，熔胶压力则大，但速度则应取决于原料的分解温度，熔胶速度越快，原料中的剪切力则会越大，料管温度则越高，局部原料产生分解的可能性则会越大，故一般熔胶会采用中速为宜，如45%-75%，熔胶同时会碰到一个比较重要的环节，那就是背压的使用，产品精度要求越大，背压的使用则更大，背压可使原料分子间结构更紧密，成型出的产品则尺寸更稳定，外观越好。

The results show that, using trioctylphosphane oxide or hexadecylamine as ligand, all of precursor ［In(η5-C5H5)］ decomposite and form the indium nanoparticles.

利用十六烷基胺或氧化三辛基膦配位体的作用，前驱体均可分解得到铟纳米颗粒；而在HDA相对含量高、溶剂中不含水和在紫外线照射作用下，前驱体分解反应产物为铟纳米线。

We got auniversal constraint about the 2—torsion invariants of 4—manifold 〓〓(Theorem 3.3.1),using the 〓—moduli space structures of twomanifolds with boundary obtained by splitting X along 〓.

对可沿〓分解的4—流形运用分解得到的两个带边流形的模空间结构得到了这类4—流形的2—torsion不变量的一个万有约束关系（定理3.3.1）。

Least Squares Estimates of the SVD decomposition method, the valuation process can be transformed into squares overdetermined equations deal with the problem, and can be calculated singular value decomposition least squares problem.

详细说明：最小二乘估值的SVD分解计算方法，本程序可将最小二乘估值问题转化为超定方程组的问题处理，且可用奇异值分解的方法计算最小二乘问题。

The strategy of decomposition and coordination is proposed based on the resolvability of HEN's exergy-economic objective function, which is between optimizaition of network and optimization of mach units.

在换热网络目標函数可分解性的基础上，本文又进一步提出了换热网络分解协调优化的研究策略，它是在各个匹配单元和整个换热网络结构之间进行优化协调，並获得换热网络的最优结构和各匹配单元的最优操作参数。

The catalysts of the invention is able to catalyse metathetic degradation of nitrile rubbers with a higher activity than the metathesis catalysts available at present and thus makes possible an increase in the reaction rate and the setting of lower molecular weights of the degraded nitrile rubbers at a comparable noble metal content.

本发明的催化剂能够以比目前可获得的复分解催化剂更高的活性来催化丁腈橡胶的复分解降解，由此在可比较的贵金属含量下使之有可能增加反应速率并设定降解的丁腈橡胶的较低分子量。

In order to inhibit its photolysis and enhance its photostability, the flavonoides were selected for photolysis inhibitors of Parsol 1789. It has been found that some flavonoides, for example Rutin, have better effect of i...

研究发现，有些黄酮类化合物对Parsol 1789的光分解有较好的抑制作用，光分解的最大抑制率可达 93.8%。

"The cracker unzips the hydrocarbons, one pair of carbon atoms at a time," explains Penn State's Harold Schobert.

宾州州立大学的萧伯特说明：「裂解器可分解碳氢化合物，每次分解一对碳原子。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。