分解率

For the first time we synthesized nanoscale metal hydrides of lanthanum, neodymium, samarium, dysprosium, and ytterbium with high efficiency under mild condition by complexometric catalysis instead of traditional preparation at high temperature and high pressure. It is for the first time that we synthesized lanthanide organic compounds with catalysts or initiating agents at atmosphere and ambient temperature,and some of them are new compounds. Nanometric lanthanide metal powders are prepared by thermal decomposition of the compounds in vacuum. Differently from the traditional method, size of the products prepared by our method is less than 40nm, and the activity of the reaction is very high. They are pyrophoric at atmosphere. They can make some reactions without activity or low activity show extremely high activity .We investigated influent regulations of methods, conditions to scale and special surface.

我们首次成功地用络合催化等方法取代需在高温高压下进行的传统方法，在温和条件下高效率地合成出纳米尺寸镧、钕、钐、镝、镱的金属氢化物；首次在常压常温的条件下，通过催化、引发等方法合成镧系金属有机化合物，再将其真空热分解成功地制备了纳米尺寸的镧、钕、钐、镝、镱等金属粉末；与传统方法不同，这些方法得到的产品基本颗粒尺寸小于 40 nm，遇到空气燃烧，具有极高的化学反应活性，使原来活性很低甚至观察不到活性的反应大幅度提高反应速率和产率；考察了制备方法、制备条件等因素对晶粒尺寸、比表面积大小等的影响规律。

Effects of roast temperature, roast time, the amounts of sodium carbonate on decomposition of bastnaesite concentrate and effects of leaching temperature, leaching time, concentration of hydrochloric acid, the amounts of hydrochloric acid on leaching ratio of trivalent rare earth and tetravalent cerium was studied systematically.

系统地研究了焙烧温度、焙烧时间和碳酸钠的加入量对氟碳铈矿精矿焙烧分解的影响及浸出时间、浸出温度、盐酸浓度和盐酸用量对三价稀土和铈的浸出率的影响。

Based on Kent Daniel and Sheridan Titman (2006) model, the paper imports bull, bear, bull to bear and bear to bull market conditions as regulated variable and makes an empirical test on relations between expected information, tangible information, intangible information and future stock returns in Chinese stock market.

本文是在Kent Daniel和Sheridan Titman（2006）研究的基础上，进行理论拓展，来研究中国A股股票市场市净率分解得到的预期信息、有形信息和无形信息对股票收益的影响，并引入牛市、熊市、牛市转向熊市、熊市转向牛市四种市场状态作为调节变量。

The grain size of the films increased with the increase of substrate temperature, deposition time and atomizing rate of precursor.

基片温度对薄膜的组成影响较大，高沉积温度会导致LaNiO〓薄膜的分解，使薄膜的电阻率异常增大。

The result of thermogravimetry shows that the beginning temperature of NBPAN decomposition is above 280℃,and rapidly carbonized between 280℃ and 310℃.The char yield is about 35.58% at 500℃.

热重分析表明 NBPAN的起始分解温度为280℃，并在280310℃迅速炭化，成炭率达35.58%。

Firstly, the proposed metric acquires the watermark embedded map based on the characteristics of human visual system. Then, the 3-level discrete wavelet decomposition is implemented, and the digital watermark is embedded into each wavelet coefficient block according to the watermark embedded map.

提出的方法首先结合人类视觉系统的特性检测原始图像的纹理丰富区域，获得水印嵌入指示图；然后将原始图像进行3层小波分解，根据水印嵌入指示图在每个小波系数块内利用量化的方法嵌入自定义水印；最后通过失真图像的水印复原率实现对图像的客观质量评价。

The cell number, DNA synthesis rate and cell metabolic activity (WST-1 cleavage) of VSMC increased in the presence of fetal calf serum in a manner of dose-dependent.

胎牛血清促进VSMC数量、DNA合成率和代谢活性(WST-1分解)增加(p＜0.05)，并呈现量效关系。3。

The results indicate that NH4Cl directly takes part in the chlorination of cerium dioxide by forming an intermediate CeOCl rather than by the HCl decomposed from NH4Cl.

结果表明， CeO2在空气气氛下采用NH4Cl氯化，在300 ℃下其氯化率达到80%左右，更高的温度反而不利于CeO2的氯化，这主要是由于CeCl3*7H2O的热分解造成的。

Experiments of photobleaching methyl blue show that the TiO2/Pt/TiO2 film exhibits a significant photocatalytic activity of 18.1% under visible light illumination when the decomposition of methyl blue is deducted.

在可见光光降解甲基蓝的实验中，扣除甲基蓝自身的分解，TiO2/Pt/TiO2多层纳米复合薄膜2h后的光降解率为18.1%。

Thermogravimetric analysis indicated that the degradation of PUDs east film started at 280℃.

热重分析显示PUD胶膜在280℃开始分解，其拉伸强度为14.1~25.0MPa，扯断伸长率为508%~716%，吸水率为

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。