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How did the synthesis elaborate Bohr according to the hydrogen atom spectrum experiment rule and Planck, in Einstein's quantum theory introduction atom, thus draws out the energy level rule, the Bohr atom theory's success has triggered the people to the atomic phenomenon and the atomic structure widespread deep research, promoted the atomic physics development.

综合论述了玻尔如何根据氢原子光谱实验规律并将普朗克、爱因斯坦的量子理论引入原子内部,从而引出能级规律,玻尔原子理论的成功触发了人们对原子现象和原子结构的广泛深入研究,推动了原子物理学的发展。

In this thesis, a semi-classical model of the force on an atom is used to describe the motion of a two-level atom interacting with a standing wave laser field. The velocity dependent force and momentum diffusion are derived through optical Bloch equations by using the matrix form of the continued fraction technique. By investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom.

本文利用半经典理论,从二能级原子在激光驻波场中所满足的运动方程出发,推导出密度矩阵元所满足的递推关系,利用矩阵连分数方法求解出密度矩阵元,从而求出依赖于原子运动速度的光压力与动量扩散系数,通过讨论原子在激光场中的动力学行为,为原子在激光场中被囚禁、形成原子列阵以及可控制的量子态,从而为量子信息处理提供理论基础。

From the fact that the hydrogens of microbial methane originate in water, it may be deduced that with the reduction of HCO(superscript – subscript 3) a transfer of H atom occurs from the O atom to the C atom within HCO3 anions formed by the disassociation of dissolved CO2 in water, and furthermore, the formyl group forms.

由前人研究结果推断HCO(上标–下标 3)在脱去两个O原子的同时,可能发生了亲核重排,羟基H原子迁移到C原子上,形成了甲酰基HCO(上标-,使甲烷的第一个H原子来源于水。

Moreover, the mechanism, characteristics and applications of atom interferometers are introduced, among which the application of the atom interferometers in gravitational acceleration measurement is a main concern. The present researches on the precision analysis of cold atom interferometer are reviewed in this chapter.

第一章综述了国内外冷原子物理和原子干涉仪的研究现状;介绍了原子干涉仪的基本原理及其应用;着重分析利用原子干涉仪测量重力加速度的方法,以及原子干涉仪精度分析的研究现状。

Not only the hydrogen atom of hydroxyl but also the hydrogen atom of the methyl group can transfer to the N atom of heterocycle.

不但甲醇分子羟基上的H可以作为供体质子,而且甲基上的H也可以作为供体质子而转移到芳香环的杂原子N上。

In the paper,the atom"s occupancy and squeezing effects with atom transition are studied by meansof the time-evolution operator method and numerical calculation. The dependence ofthese properties on atom"s initial state phase and optical fields average photonnumber is also discussed.

本文采用时间演化算符方法和数值计算研究原子在经历跃变前后原子布居数和压缩的变化行为,并讨论它们对原子初态和光场初态参量的依赖关系。

In this paper, the current states of research about the basic theory of stationary state perturbation method are firstly reviewed, on base of them, and studied some physics issues mainly about hydrogen atom. The stark effect of the energy level (n = 4) of hydrogen atom is calculated and the stark effect of three dimensional hydrogen atom is discussed by the use of the parabolic coordinates, then the perturbative matrix elements for each energy level are given.

本文首先综述了关于定态微扰论基本理论的研究现状,在此基础上利用定态微扰论对某些物理问题,主要是对氢原子问题展开了研究,计算了氢原子n=4能级的斯塔克效应,并利用抛物线坐标法求解了三维氢原子的斯塔克效应,给出了氢原子斯塔克效应中微扰矩阵元的普遍公式。

Mn-complexes in which Mn atom ligand with the N atom within ligand can stimulate the recovery of electron transfer and oxygen evolution. The trinuclear Mn-complex is extremely sensitive to the addition of CaCl2. It is suggested that there is an interaction between Ca2 and carboxyl within the trinuclear Mn-complex during photoactivation and this interaction benefits the ligation of Mn atom to the apo-WOC and form an active WOC. Binuclear MnMn complex shows slightly higher efficiency than binuclear MnMn complex in restoration of O2 evolution activity. It is suggested from our results that recovery of electron transport and O2 evolution with synthetic Mn-complexes is affected by different factors. Cl- can stimulate the reconstitution of WOC at the concentration of over 100mM;the maximal recovery of O2 evolution activity requires the presence of CaCl2 and 33 kDa protein polypeptide together. Bicarbonate can stimulate the reconstitution of WOC.

锰配合物中锰原子与配体中的氮原子配位连接时,能显著恢复电子传递活性和放氧活性;三核锰化合物在重组时对CaCl2的存在非常敏感,我们认为Ca2 与三核锰化合物中的羧基之间存在一定的相互作用,而这种作用有助于锰原子的光配位进而使三核锰化合物易于组装成有活性的水氧化复合物:双核锰化合物MnMn比双核锰化合物MnMn在恢复放氧活性方面更有效;影响锰化合物电子传递能力恢复的因素与影响锰化合物放氧活性恢复的因素不同;在锰蔟重组过程中,氯离子的浓度必须在100mM以上,才能有效进行光重组;最大光重组效率的获得必须有钙离子和33kDa多肽同时存在;碳酸氢根离子促进锰化合物与去锰光系统II的光组装。

A new organic compound, trans-2--5-dimesitylborylthiophene (abbreviated as DMASBT, 5) with dimesitylboryl, dimethylamino and styryl-thiophene as electron acceptor, electron donor and conjugate bridge respectively, was synthesized. Its crystal structure determined by X-ray diffraction method indicates that the B-C bond between B atom and it bridge is obviously shorter than those of between B atom and mesityl groups. This remarkably strengthened B-C bonding can be regarded as an evidence of additional p-7t conjugation between the B atom and n bridge.

合成了以含硼基团为电子受体,以二甲胺基为电子给体,以苯乙烯基噻吩为共轭桥的新化合物2-[(4'-N,N-二甲胺基)苯乙烯基]-5-二米基硼-噻吩 trans-2-[(4'-N, N-dimethylamino) styryl]-5-dimesitylboryl-thiophene(简写为DMASBT,5)。X射线衍射方法测定其单晶结构表明,硼原子与π共轭桥之间的硼碳键相对于其它的硼碳键明显缩短,硼与π共轭桥之间存在除了σ键之外的p-π共轭作用。

Wherein X is an oxygen atom or a sulfur atom; C*, C** and C*** are asymmetric carbons; R 1 , R 2 , R 4 , R 5 , R 8 , R 9 and R 10 are each a lower alkyl group optionally having substituent and the like, or R 4 and R 5 and the like in combination optionally form a homocyclic ring optionally having substituent and the like; R 3 is an aryl group optionally having substituent and the like; R 6 and R 7 are each a hydrogen atom and the like; Nu is -CR 16 (COR 17 )(COR 18 ) wherein R 16 , R 17 and R 18 are each a lower alkyl group optionally having substituent and the like, and the like; and EWG is an electron withdrawing group.

通式中,X代表氧或硫;C *、C **和C ***分别表示不对称碳;R 1 、R 2 、R 4 、R 5 、R 8 、R 9 和R 10 分别代表任选取代的低级烷基等,条件是例如R 4 和R 5 可以相互结合形成任选取代的同素环等;R 3 代表任选取代的芳基等;R 6 和R 7 分别代表氢原子等;Nu表示-CR 16 (COR 17 )(COR 18 )(其中R 16 、R 17 和R 18 分别代表任选取代的低级烷基等)等;并且EWG表示吸电子基团。

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推荐网络例句

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上,利用各种方法求得各种逻辑型、结构型控制器,解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面,有讨论,工程理事会和联盟关于延长工作时间短至9月底。

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