结构体

For bulk lamella-forming diblock copolymers, perpendicular lamellae and concentric lamellae spontaneously form under the neutral and strongly preferential surface, respectively. When the surface preference is relatively weak, novel structures such as parallel lamellae, helices and catenarian structures are observed.

对体相形成层状相的双嵌段共聚物，我们发现在中性孔壁下共聚物自组装形成垂直于孔壁的垂直层结构，在强选择性孔壁下形成一系列的同心层结构，而在弱选择性孔壁下形成平行于孔轴的平行层、螺旋和链节等新奇结构。

For example, to CaSiO〓, wallastonite and cyclowallastonite could be found simultaneously in glazes between the temperature range of 1125℃±10℃, only wallastonite came out below the range, and only cyclowallastonite appeared above the range. Similarly, melilite structure and clinopyroxene structure connected with crystallization temperature. Usually, higher crystallization temperature contributes to forming melilite with simple structure and lower crystallization temperature contributes to clinopyroxene with complex structure.

如钙的偏硅酸盐，硅灰石、环硅灰石的转变温度区域为1125℃±10℃，组分适当的特定釉熔体，高于此温度出现环硅灰石，低于此温度出现硅灰石晶体结构；同样的，黄长石、辉石的出现也与温度有密切的联系，通常，晶体生长的温度较高有利于晶体结构简单的黄长石出现，晶体生长时温度较低有利于稍复杂的辉石结构的出现。

It was found that increasing pressure for blank can improve the compactedness of blanks so as to make foam aluminium materials with homogeneous pores. Foaming temperature, as one of the main influencing factors on foaming process, should be controlled higher than the melting point of Al or Alalloy to a certain extant in order to keep a reasonable viscosity. Thus, the foam aluminum with homogeneous pores and high porosity is available. As shown by experiments, such materials should be made on conditions that they shall be protected with molten salt under 300?MPa pressure at 675～680?℃.

研究了粉末冶金法制备泡沫铝材料的方法讨论了发泡过程中的保护方式、制坯压力、发泡温度等参数对泡沫铝体积质量、孔隙率、孔结构的影响，并对发泡机理进行了探讨增大制坯压力使得金属坯致密，可以得到孔结构均匀的泡沫铝材料；发泡温度是影响发泡的主要因素之一，发泡温度控制在高于铝或铝合金熔点，同时保持熔体具有一定粘度的范围内，能够得到孔结构均匀、高孔隙率的泡沫铝材料实验结果表明：采用熔盐保护方式，在300MPa的压力下，温度在675～680℃时，可得到孔径均匀、孔隙率高的泡沫铝材料。

In the structures of these complexes, zinc can act as the vertex of the networks in various styles: single atom; dicarboxylate, tricarboxylate or tetracarboxylate bridged binuclear SBU ; and octacarboxylate bridged trinuclear SBU.

在这些配合物的结构中，锌离子可以按多种形式作为网络结构的顶点：单原子，双羧基、三羧基或四羧基桥连的双核锌次级结构单元，八羧基桥连的三核锌次级结构单元，再与配体组装成不同的配位聚合物网络。

The equilibrious geometries and electronic structures of possible isomers of Si4N4 clusters are studied by using density functional theorywith basis sets 6-31G*.17 possible isomers are obtained.

用密度泛函理论中的杂化密度泛函B3LYP方法，在6-31G的水平上对Si4N4团簇的可能结构进行了几何结构优化和电子结构计算，得到了可能的17个异构体。

The characters of powder are connected with the inside structure and synthesize-technics of materials. In this paper, we want to search a optimize technics of materials synthesizing, and prepare a kind of nanosize powder which shape like ball and have good dispersed character. At the same time, we want to obtain a bridge structure of Zn-O-Tb through dopping of Tb, which can achieve efficient energy transfer from ZnO hosts to excited states of dopants, The doped powder can eradiate blazing green light because of efficient emission buildup from dopants and ZnO hosts, and the powder can emission a pure light. And we want to research the structure in doped ZnO for the further research of low-tension fluorescence of ZnO.

粉体的这些特性无不与其内部结构特征和制备工艺有关，基于这些，本文的实验目的是希望能寻找一种合适的制备方法和优化工艺，制备分散性好的球形纳米颗粒，希望改善其表面形貌，同时，通过铽掺杂，希望得到一种Zn-O-Tb桥联结构，实现氧化锌基体向铽发光中心的能量传递，希望铽中心特征发射和氧化锌绿光发射能有效叠加增强，改善粉体的单色性，制备出好的复合粉体，分析清楚其结构，从而为后续低压荧光特性研究作准备。

In this model, the NAC dimmer localized at the center; The first part (1-62aa) and the third part (114-162aa) surrounded this center and formed heterogenetic association; The UBA domain distributed at two ends.

这个模型的中心为NAC二聚体结构，第一部分(1-62位氨基酸)和第三部分(113-163位氨基酸)围绕这个中心异源聚合在一起，UBA结构域分布在两端。5、PeaT1结构与功能的关系。

The structure analysis showed that: The subunit structure of Irr-GAPDH is very similar to that found in Americanus Homarus lobster GAPDH. It consists of two domains, one is 〓 binding domain which contains typical Rossmann folds.

为0.024〓。结构分析表明：与美国龙虾GAPDH结构相似，四聚体分子中每一个亚基可分为二个结构域。

Properties of FRP materials have been improved by experimental and analysis on hybrid of two or three kinds of fiber, and various products have been manufactured accordingly. At the same time, the resin and equipment that are suitable for those FRP materials have been developed. A series of key applied techniques, such as strengthening of steel structures, masonry structures and concrete structures reinforced with prestressed FRP, lossless inspectability of structures and so on, have been developed though experimental research according to requests of engineering. There are four codes and guidelines for applying FRP techniques to construct foundational establishment. Among them, one technical specification was published in May 2003. It can be standardization of applying FRP materials on engineering. There have been more than one hundred engineerings strengthened with FRP materials since 1999 based on research and investigation of FRP materials and techniques.

在材料改性研究以及产品开发方面，通过纤维混杂改性，开发出适用于不同工程要求的单一品种纤维和混杂纤维的FRP产品及配套树脂材料、配套设备机具等；在关键应用技术开发方面，根据工程需要，开发出钢结构加固技术、砌体结构加固技术、预应力加固技术、结构无损检测技术等基础设施建设中应用FRP材料的关键技术；在规范标准编制方面，主持编制国家规范标准4项， 1项已获批准实施，其它3项正在按计划进行；在工程应用方面，应用自主开发的材料和技术，改造、加固工程100多项，创造了巨大的经济效益及广泛的社会效益。

Hybrid mesoporous molecular sieve materials with hexagonal mesoporous structure and covalent bonded polyoxometalates were synthesized based on tetraethoxysilane anti lacunary polyoxometalate, SiW11, via sol-gel method in the presence of triblock copolymers P123 as the structure-directing agent. The influences of molar ratio of inorganic precursors and aging temperature on the structure and the loadings of SiW11 in the hybrid materials were investigated. Some reaction details in the synthesis were revealed.

用嵌段共聚物P123为模板剂，正硅酸乙酯和缺位结构的多金属氧酸盐SiW11为无机前驱体，由溶胶－凝胶法合成了具有六方结构和SiW11共价键联的介孔分子筛杂化材料SiW11/SBA-15，着重考察了无机前驱的配比和老化温度对杂化材料结构及SiW11负载量的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。