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bohr理论
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  bohr theory
     Based on discussions on the method of solving eigenvalue equations by using ladder operators,the ladder operator method for Bohr theory is extended to Dirac theory. The relativistic effects are shown in a simple way and the results are consistent with the standard method.
     在对阶梯算符方法讨论的基础上,将Bohr理论的阶梯算符解法推广,使之实用于Dirac理论,简便地计算出了氢原子的相对论效应,所得的结果和标准解法一致
短句来源
     The present result was compared with the Bohr theory and the results of published experimental work It is shown that the Bohr theory is not appropriate to description of the energy straggling of low energy heavy ion in films, and the surface roughness could seriusly affect the energy straggling.
     本结果与 Bohr理论和已发表的实验工作进行了比较
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  相似匹配句对
     theory and generalization;
     理论总结;
短句来源
     The Theory of the Rainbow
     虹的理论
短句来源
     Nuclear Structure Models and Bohr-Mottelson Rotational Spectral Theory
     核结构模型和Bohr-Mottelson转动谱理论
短句来源
     The present result was compared with the Bohr theory and the results of published experimental work It is shown that the Bohr theory is not appropriate to description of the energy straggling of low energy heavy ion in films, and the surface roughness could seriusly affect the energy straggling.
     本结果与 Bohr理论和已发表的实验工作进行了比较
短句来源
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  bohr theory
The Bohr theory treats charged-particle stopping as a sequence of interactions with classical target electrons bound harmonically to their equilibrium positions.
      
Unlike the Bohr theory, the present evaluation avoids a formal division into regimes of close and distant collisions that do not necessarily join smoothly.
      
The collective Hamiltonian is constructed using the concepts of the Bohr theory and includes the degrees of freedom corresponding to the axial quadrupole and hexadecapole vibrations.
      
According to the Bohr Theory, the atom consists of a positively charged nucleus surrounded by negatively charged, orbital electrons.
      
And yet the two quotations discuss conceptual problems which are often cited as downfalls of the early Bohr theory.
      
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Considering the nucleus as an axial asymmetric quantum mechanical system, we have discussed the rotational spectra of even-even nuclei under the adiabatic approximation. The following results are obtained.1. From the detailed analysis of low-lying energy levels of ten nuclei, rotational spectra of axial asymmetric nuclei definitely exist. The theoretical values of energy levels agree with experimental results very well. (See Fig. 1)2. We have obtained the three principal moments of inertia, (?)1, (?)2 and (?)B,...

Considering the nucleus as an axial asymmetric quantum mechanical system, we have discussed the rotational spectra of even-even nuclei under the adiabatic approximation. The following results are obtained.1. From the detailed analysis of low-lying energy levels of ten nuclei, rotational spectra of axial asymmetric nuclei definitely exist. The theoretical values of energy levels agree with experimental results very well. (See Fig. 1)2. We have obtained the three principal moments of inertia, (?)1, (?)2 and (?)B, of ten nuclei (Os190, Os186, W183, Er168, Er166, Dy150, Gd156, Gd154, Pu283, Pu240).3. The relation among the throe moments of inertia, as predicated in Eolir's model, is proved to be incorrect. According fo Bohr's theory, one should haveThereforeBut the values of (?)1, (?)2, and (?)0, deduced from experiments do not satisfy this relation. (See Fig. 3)

把原子核看作一非轴对称量子力学体系,在绝热近似下,考虑了其转动激发能谱。我们只讨论了偶偶核。计算及讨论表明: (1)原子核,特别是重核,肯定存在着非轴对称转动能谱,从我们仔细计算过的十个原子核能谱来看,理论值和实验值符合得很好,(见图1),大多数与实验值的偏离≤1%。 (2)我们第一次求得了原子核(Os~(190),Os~(186),W~(132),E~(166),E~(165),Dy~(160),Gd~(156),Gd~(154),Pu~(238)和Pu~(240))的三个主转动惯量θ_1,θ_2和θ_3。(表1). (3)原子核转动惯量之间并无A.Bohr理论所指出的关系。按照Bohr理论, (θ_1/θ_3)~(1/2)-(θ_2/θ_3)~(1/2)=1 但我们从实验求得的θ_1,θ_2和θ_3并不满足上述关系式(见图3)。

Based on discussions on the method of solving eigenvalue equations by using ladder operators,the ladder operator method for Bohr theory is extended to Dirac theory.The relativistic effects are shown in a simple way and the results are consistent with the standard method.

在对阶梯算符方法讨论的基础上,将Bohr理论的阶梯算符解法推广,使之实用于Dirac理论,简便地计算出了氢原子的相对论效应,所得的结果和标准解法一致

The energy straggling of 2.0~5.4 MeV carbon ions in aluminum films evaporated onto K4 glass substrates was measured with the Au marked RBS method. The surface roughness with zero was obtained from experiment. It supplied a method for determination of the surface roughness with zero. The present result was compared with the Bohr theory and the results of published experimental work It is shown that the Bohr theory is not appropriate to description of the energy straggling of low energy heavy ion in films, and...

The energy straggling of 2.0~5.4 MeV carbon ions in aluminum films evaporated onto K4 glass substrates was measured with the Au marked RBS method. The surface roughness with zero was obtained from experiment. It supplied a method for determination of the surface roughness with zero. The present result was compared with the Bohr theory and the results of published experimental work It is shown that the Bohr theory is not appropriate to description of the energy straggling of low energy heavy ion in films, and the surface roughness could seriusly affect the energy straggling. We have to pay more attention to both points mentioned above in the ion beam analyses, ion implantations and some nuclear physics expriments.

用金标记卢瑟福背散射法测量了 2 .0~ 5.4Me V的 12 C离子在蒸镀在 K4玻璃衬底上的 Al膜中的能量歧离 .由实验得出了零表面粗糙度的能量歧离 .本结果与 Bohr理论和已发表的实验工作进行了比较

 
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