合成的

The trials obseved PUN effect on milk protein synthesization ,through abomasum infusing urea.

针对关于血浆尿素氮水平是否影响乳蛋白合成的不同观点，本课题通过真胃灌注尿素提高血浆尿素氮观察了血浆尿素氮水平是否影响乳蛋白合成。

Chiral amino-hydroxy compounds have been proved to be a very efficient class of ligands in a variety of catalytic asymmetric syntheses and chiral auxiliary synthesis catalyzed by metallic ions.

手性氨基-羟基化合物是一类用于催化不对称合成和手性辅助合成的重要配体。

The results show that the synthetic compounds conform to the target compounds and the primary bioassay for anti-vibrio activity displays that the pyrrole alkaloids have a weak inhibition against Vibrio parahaemolyticus and Vibrio alginolyticus compared with the positive control of chloromycetin.

结果表明，所合成的化合物与目标化合物结构相一致。初步的抗溶藻弧菌和副溶血弧菌活性筛选表明，合成的吡咯生物碱具有一定的抗弧菌活性，但相对于阳性对照药氯霉素来说，合成的绝大部分吡咯生物碱抗弧菌活性较弱。

It is demonstrated that the chiral quaternary ammonium salts catalysts exhibit promising catalytic properties for the substrate. Part III: The synthesis and the characterizing of the macroporous aminomethyl resin-supported cinchona alkaloid complexes and the study on its catalytic properties The part consists of two subsections. the macroporous aminomethyl resin -supported cinchona alkaloid complexes were synthesized by the stuff (cinchonine, quinine and macroporous aminomethyl resin). Their structures were characterized by means of elemental analysis, XPS, TG/DTA; the chiral polymer-supported complexes were first used as catalysts for the reduction of ketones. Their catalytic properties for the reduction processes were investigated. The comparison of the products e.e., the conversion of the substrate among different reduction processes was employed with determined by HPLC. The effects of the time, the temperature, the ratio of catalyst to substrate, reaction solvent as well as the recycle times were also discussed.

第三章聚-4-氨甲基苯乙烯负载金鸡纳碱金属络合物的合成与表征及其不对称催化性能研究本章分为两节，以辛可宁和奎宁及聚-4-氨甲基苯乙烯为原料，合成了4种聚-4-氨甲基苯乙烯负载金鸡纳碱络合物催化剂，并对它们的结构用元素分析、X-射线光电子能谱、TG/DTA等几种测试手段进行了表征；首次将所合成的手性高分子负载的金属络合物用于催化芳香酮不对称还原反应，详细研究了所得的手性高分子负载的金属络合物对不同底物的催化性能，用HPLC等分析手段定量检测了还原过程的底物转化率及其产物对映异构体选择性，并考察了反应时间、反应温度、催化剂和底物投料比、反应溶剂和循环次数对催化性能的影响。

In this paper, by projecting onto right image plane the intermediate images composited from the images on successive slicing planes, while rendering the left image based on a series of parallel slicing planes [Yage96] , the computation of composition in rendering the right image can be reduced, and the efficiency of stereoscopic rendering can be improved.

为此，本文在采用基于一组平行切割平面的体绘制方法生成左视图的过程中[Yage96]，通过将连续若干层切割平面上的中间采样图像先进行合成，将合成后的结果再投影到右图像平面上，从而减少右视图生成过程中对图像合成的计算量，提高立体绘制效率。

Semiconservative replication :The two strands of DNA double helix are separated, each strand serves as a template for the synthesis of a new complementary strand, producing two daughter molecules. Each daughter molecule has one parental strand and one newly synthesized strand.

半保留复制： DNA 生物合成时，母链 DNA 解开为两股单链，每股单链分别作为模板，以 dNTP(dATP 、 dGTP 、 dCTP 、 dTTP)为原料，按照碱基配对(A － T 、 G － C)规律与模板上的碱基配对，经依赖 DNA 的 DNA 聚合酶催化，合成一条与模板互补的新链，新形成的两个子代 DNA 与亲代 DNA 碱基序列一致，子代 DNA 分子中一股单链是从亲代完整地接受过来，另一股单链是新合成的，故称为半保留复制。

It is involved in the synthesis of triphenylcarbinol. In this pater, based on the principle of the ultrasonic wave radiation and its advantages, triphenylcarbinol was synthesized by ultrasonic irradiation. We have researched the influence on the synthesis of triphenylcarbinol for the solvent of different purity.

三苯甲醇的制备中就涉及到了格氏试剂的合成，本文根据超声波辐射作用的原理及其优点，利用超声波辐射法合成了三苯甲醇，考察了不同纯度的乙醚溶剂对产物合成的影响。

According to the problem that grating scale hardly achieves high resolution when in high speed and the characteristic of high speed high precision system,this paper presents across dimension displacement measuring method based on dual grating scales dual measuring,the counting values of dual grating scales switch and merge.

在分析光栅线性位移测量原理、光栅尺的测量误差尤其是细分误差的基础上，本文重点研究双光栅尺切换与合成的原理，建立了基于双光栅尺高速高精度位移测量的设计准则，根据设计准则设计了切换基准拾取方法以及快速切换与合成方法，分析了双光栅计数值切换合成的误差。

The paper analyzed the mechanism of diamond synthesis, stated and compared the processes and differences of diamond synthesis by slice and powder catalyst , and proposed the view of single room production mechanism.

文章分析了金刚石合成的机理，论述和比较了片状触媒和粉状触媒合成金刚石的过程和差异，提出了&单间生长机制&的观点，认为在粉状触媒工艺中金刚石生长的环境条件优越，合成出的金刚石晶体均匀对称，品质良好。

On the basis of network transmission using architecture of MPEG-4,and combined with the characteristics of object-based encoding and interaction in MPEG-4,this paper presents a transmission framework design to support interactive multimedia scene,which makes end users to choose their interested contents to compose corresponding scene,controls multimedia data transmission and interacts with sever side to modify scene in real time.

0引言目前大多数多媒体服务提供的仅是单个音视频或具有2D功能的视频流的传输和播放，但MPEG-4标准为合成描述、压缩、存储自然和合成的音视频数据提供了一个广泛的框架，它以媒体对象为基础，通过对象操作可使用户在接收端直接将不同对象进行拼接，得到用户自己合成的图像，也允许

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。