物

Electrochemical measurements of the singler A2B7 and A5B19 phase alloy showed that, the activation properties of singler type A2B7 and AsB19 phase composition alloys were the same. The maximum discharge capacity (386.12mAh/g) of A2B7 type phase alloy was slightly higher than the maximum discharge capacity (371.38mAh/g) of A5B19 type phase alloy. The cyclic stability of alloy electrode of both A2B7 and A5B19-type phase alloy were all very well. The capacity retention rate of 100 cyclic was more than 85%.The high-rate discharge (HRD900=85%) of AsB19phase alloy was higher than the high-rate discharge (HRD900=76.6%) of A2B7phase alloy.

对较单一的A2B7与A5B19型物相合金进行电化学测试，结果表明：A2B7型相结构储氢合金的活化次数与A5B19型相结构储氢合金的活化次数基本相同，A2B7型物相合金的最大放电容量(386.12mAh/g)略高于A5B19型物相合金的最大放电容量(371.38mAh/g)。A2B7与A5B19型物相合金电极100个循环容量保持率都在85%以上，且差别不大。A5B19型相结构合金的高倍率放电性能(HRD900=85%)高于A2B7型相结构合金的高倍率放电性能(HRD900=76.6%)。

The result indicated that we can get stable homopolymer and copolymer emulsion with uniform size distribution, when the ratio of sodium polyether sulfovinate modified polysiloxane to sodium lauryl sulfate was two, the quantity of the emulsifiers ranged from 6% to 8%, the quantity of initiator ranged from 0.4% to 0.8%, the stirring speed ranged from 200rpm to 250rpm, the polymerization temperature was 80 centigrade degree. As for the copolymer emulsion, the more the TRIS content in the monomers, the larger the water contact angle of their films became, namely, the surface energy of the copolymer films increased with the TRIS content in the monomers. In addition, the glass-transition temperature of the copolymers ranged from high temperature region to low temperature region with the increasing of TRIS content in the monomers.

结果表明：当乳化剂用量在6%～8%、改性乳化剂与十二烷基硫酸钠复配比为2：1、引发剂用量在0.4～0.8%、聚合温度为80℃、搅拌速度在200～250rpm时，得到的均聚物和共聚物乳液稳定，而且粒径分布均匀；对于共聚物乳液来说，随着单体中TRIS含量的增加，所得聚合物膜的水滴接触角增加，即其表面能增加：另外，随着共聚单体中TRIS含量的增加，共聚物的玻璃化转变温度从PMMA的Tg的高温区向PTRIS的Tg的低温区移动。

By modifying the synthetic methods in literature,four multinuclear copper complexes,that is,dinuclear[Cu_2(H_2tea)_2(C_6H_5COO)_2]·2H_2O, trinuclear[Cu_3(H_2tea)_2(4-OC_6H_4COO)_2(H_2O)]·4H_2O(designated as Cu_2),tetranuclear O?

通过改进合成方法，从硝酸铜原料和三乙醇胺(标记为H_3tea)配体出发，合成了四种多核铜配合物，即双核铜配合物[Cu_2(H_2tea)_2(C_6H_5COO)_2]·2H_2O，三核铜配合物[Cu_3(H_2tea)_2(4-OC_6H_4COO)_2(H_2O)]·4H_2O(标记为Cu2)，四核铜配合物O？

From the Trias to the Tertiary, provenance area character changed with the age. The Jurassic provenance area is recycle orogenic belt. the Cretaceous provenance area is recycle orogenic belt too. and the Tertiary provenance area is commingle area with recycle orogenic belt and volcano arc orogenic belt.

自三叠纪到第三纪，准噶尔盆地南缘的物源区的性质随时间变化，侏罗纪的物源区为&再循环造山带&，白垩纪的物源区仍为&再循环造山带&，第三纪的物源属于&再循环造山带&和&火山弧造山带&的混合。

Two novel tridentate polypyridyl mixed-ligand cobalt [Co (H2Bzimpy)(superscript 3+)] and ruthenium complexes were synthesized and characterized via elemental analysis and (superscript 1)H NMR. The crystal structure of complex B was determined. The interactions between the complexes and calf thymus DNA were investigated with absorption and fluorescence spectroscopys. Photoactivated cleavage of pBR322DNA by the synthesized complexes were studied.

合成了两种新型三齿多吡啶钴[Co(H2Bzimpy)](上标 3+)和钌混配配合物，用元素分析和1HNMR等对其结构进行了表征，测定了配合物B的晶体结构用电子吸收光谱和荧光光谱等方法研究了配合物与小牛胸腺DNA的相互作用以及配合物对pBR322DNA的断裂作用。

In this sense, IDA plays dual effects, tridentate chelating to Cu(2) and bridgebetween two Cu(1) andCu(2).3 Metal complexes were selected as the appropriate for the study of cleavage plasmid pBR322DNA by gel electrophoresis technique. The results showed Ni and Mn complexes could cleave effect- ively DNA in the presence of H2O2 at physiological pH and temperature, whereas individual Zn complex could cleave effectively DNA.

通过电泳实验研究了一系列金属配合物与pBR322DNA的作用，发现在Tris-HCl缓冲溶液中，生理条件下，镍、锰配合物在共反应物H_2O_2存在下能够很好的断裂DNA，而Zn配合物单独作用就能够使DNA由ccc型转化为oc和linear型。

It is prepared from titanium tetrachloride carried on an alcohol carrier that Mg and Li chlorides with molar ratio of 1:(2-20) are dissolved in alcohol, and by: co-dissolving Mg chloride and Li chloride in a low carbon alcohol and stirring at high speed in an inert medium to form micro-particles; reacting the said alcohol with titanium tetrachloride twice, adding organic acid polyester at first time, washing out uncarried titanium tetrachloride, and drying to obtain powdery pruduct.

它是由四氯化钛负载于将氯化镁和氯化锂共溶于醇形成的醇合物载体上组成，其中氯化锂与氯化镁的摩尔比为1∶2～1∶20。这种主催化剂组分的制备有两个步骤：(1)无水氯化镁和氯化锂共溶于低碳醇中形成醇合物，并在惰性介质中高速搅拌形成醇合物微粒；(2)醇合物与四氯化钛进行两次反应，其中第一次反应时加入有机酸多元酯。反应结束后用惰性溶剂洗去未负载的四氯化钛，干燥后得到呈粉末状的主催化剂组分。

This study used the pick-up head from the commercial DVD-ROM as the basis for optical path, and drilled a 2mm hole on the focusing object lens. After combined with the design of a beams plitter, the laser beam source of the two DVD formed two in-line laser beams. One laser beam passed through the undrilled part, and focused on the surface of the object to be tested, in order to measure the displacement variance of the surface.

於三自由光学测探头的研制上，则将DVD 探头之聚焦物镜做一2mm 的穿孔，於搭配一分光镜的设计后，使个DVD 的光源形成同轴光束，将其中ㄧ光束经由聚焦物镜未穿孔部分，聚焦於待测物表面，用以测待测物表面的位移变化，另一光束则穿透过聚焦物镜穿孔部分，直接将光束投射至待测物表面，作为待测物表面之个角的变化测。

Effect of polymerization conditions including charging weight ratio of polystyrene macromer, amount of initiator and temperature of copolymerization on grafting efficiency were studied. PBA-g-PS was used as compatibilizer in the blends of PS/ACR Effects of composition of the blends, amount of the graft copolymer, and composition of the graft copolymer on mechanical properties were studied.

研究了共聚合反应条件：聚苯乙烯大单体的投料质量分数，引发剂用量，反应温度对接枝效率的影响；PBA-g-PS可以作为ACR/PS体系的共混增容剂，研究共混物的组成，接枝物的用量，接枝物的组成对共混物物理机械性能的影响。

Conductivity of Polyoxyethylene/Poly (2-vinyl pyridine)Blend and Compatibilizing Effect of Lithium Perchlorate;2. Graft terpolymerization of polyoxyethylene macromer with acrylates;3. Then multiblock copolymers was obtained by condensing polyoxyethylene and poly(2 vinylpyridine)with dichloromethane in the presence of potassium hydroxide.

甲基萘锂作为引发剂利用阴离子聚合得到 2 乙烯基吡啶的遥爪双羟基低聚物(P2VP)，然后以二氯甲烷作偶联剂与聚环氧乙烷反应制备P2VP和PEO多嵌段共聚物，考察了反应时间对偶联反应的影响，并对共聚物进行了IR和1H NMR表征，由1H NMR谱的积分曲线得到了共聚物中PEO链段质量分数。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。