量子化学

This study experimented on CdS quantum-dots were assembled in the nano-tubes of synthetical chrysotile by ultrasonic chemistry-method .

采用超声化学法在合成纤蛇纹石纳米管内进行了组装CdS量子点的研究。

Quantum size effect of nanometer particles has been discussed in this paper from the point of view of colloid and physical chemistry.

本文从胶体化学与物理化学的角度介绍了纳米颗粒的尺寸量子化效应。

Out of quantum electrodynamics come all known electrical, mechanical, and chemical laws.

从量子电动力学可以得出所有已知的电学、力学和化学定律。

It is found that the R-matrix only permits anAbelian 〓continuous gauge transformation and the energy spectrum isgange invariant whereas the eigenvectors and eigenvalues of transfer matrix as wellas the Bethe ansatz equations are explicitly gauge dependent.

我们发现所得量子R-矩阵不具有〓离散对称性，这种对称性可被认为对模型的R-矩阵及Lax算符施加了一种附加约束，一旦去掉这种对称性，我们就可以得到对含有化学势一维Hubbard模型一种自然描述的量子R-矩阵。

Controlling quantum phenomena is an important goal in chemistry, and quantum control theory is helpful to realize the goal.

控制量子现象是化学研究中的一个重要目标，量子控制论对实现该目标具有积极的指导意义。

Based on the introduction of quantum numbers and bonding parameters,a novel molecular topological index ~A~was suggested.

通过引入量子数、键参数，认为分子的性质与其中各原子的电负性、价电子数、成键电子数、价层主量子数及各化学键的键长有关，提出了一种新的分子拓扑指数mAY。

Essentially all phenomena in chemistry find explanations in the quantum atom, while chemistry and physics undergird molecular biology, which, since the discovery of DNA in the 1950s, dominates modern biology.

从本质上讲所有的化学现象都可以在量子原子中找到答案。而自二十世纪五十年代发现DNA以来一直占据现代生物学主导地位的分子生物学，在背后支撑它的是化学和物理学。

It has many particular characterizations, such as volume effect, surface effect, quanta size effect, macroscopical quanta tunnel effect and so on because of its physical and chemical performances different from nubbly solid.

纳米颗粒具有明显不同于块状固体的物理和化学性能，因而呈现出体积效应、表面效应、量子尺寸效应、宏观量子隧道效应等等独特的性能，使得人们把纳米材料科学作为多学科交叉的生长点和跨世纪&热点&的研究领域。

The CdSe quantum dots were fabricated by chemical method, and the quantum dots with different radii were obtained by the choice of the reaction time.

CdSe量子点由化学方法制备，通过选择不同的反应时间得到不同尺度的量子点样品。

The results show that the diffraction patterns for WS2 single phase were observed; the pronounced quantum size effect exists in S-W-S nano clusters, and it enhances the hybridization of different electronic shell obits and formed a closed hollow spherical structure without any dangling bond. In the lubricating process, such a system can maintain its chemical stability and decrease energy dissipation.

分析结果表明：XRD图样显示为WS2相单相；在S-W-S纳米簇团中存在显著的量子尺寸效应，该效应强化了硫原子电子壳层间的轨道杂化，使纳米级的WS2润滑晶体形成了1个没有悬键的、化学性能稳定的中空球体，在润滑过程中，这种结构可使体系保持较强的化学稳定性，能耗降低。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。