物理化学

The geometries of [99mTc-DADS]+ complexes are optimized by semi -empirical quantum mechanics method ZINDO/1 and many physical and chemical desc riptors are obtained. Multiple regression between this drescriptors and urine up take of 120 min post injection is done and one equation is obtained.

用分子力学、半经验量子化学方法中的ZINDO/1方法对[99mTc-DADS]+系列配合物的结构进行了优化，做了电子结构计算，得到各种物理化学参数和电性参数，并将这些参数对膀胱120 min摄取值进行多元线性回归分析，得到了回归方程。

Chemical potential is an intensive property,which has important applications in the description of thermodynamic system with changeable components.

化学势是在研究多组分体系热力学关系中引进的一个重要的热力学概念，在热力学、物理化学及生物流体力学等学科中有着重要的应用。

V-triazole was firstly prepared by Von Pechmann and Ven Baeyer in 1888, and the study on its derivatives has been very active in the past century.

中文题名新型连三唑衍生物的合成及其抗菌性能研究副题名外文题名 Studies on synthesis and antibacterial activity of new derivatives of 1，2，3-triazoles 论文作者陈敏东导师吕士杰研究员学科专业物理化学研究领域\研究方向有机合成学位级别博士学位授予单位中国科学院兰州化学物理研究所学位授予日期2001 论文页码总数153页关键词连三唑杂环化合物抗菌活性馆藏号BSLW /2003 /O626 /2 连三唑最早于1888年由Von Pechmann和助手Ven Baeyer制得，一个多世纪来连三唑衍生物的研究依然十分活跃。

In 1885 the Bergius Botanic Garden moved out to Frescati and between 1907 and 1916 an early prototype of a science park began to take shape.

这包括：瑞典自然历史博物馆、瑞典皇家科学院、诺贝尔物理化学机构、林业大学学院、兽医学院和再往南一点的皇家技术学院。

Airglow and aurora are important optical phenomena. Their radiation, especially ultraviolet radiation contains fundamental chemical and physical information about upper atmosphere and ionosphere.

气辉和极光是高层大气中的重要发光现象，其辐射特性、特别是紫外波段的辐射特性，是高层大气和电离层物理化学过程信息的重要来源。

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。