查询词典 atomic theory

In this paper, after taking over coupling effect between electronic spin and orbital angular momentum, to revise the formula of electronic angular momentum in Bohr's theory, and electronic speed formula is obtained in a single-electron system, and to correct the energy level formula of atomic orbit in Schr? dinger's method by relativistic effect, the theoretical improving formula is built for spectrum fine splitting calculation, the calculated values are in good agreement with experimental ones, and reflect changing law of spectrum fine splitting values.

本文在考虑了电子的自旋角动量与轨道角动量的耦合作用后，通过对Bohr理论中的电子运动角动量的修改，推导出单电子体系的电子速度公式，结合对Schrdinger的原子轨道能级表达式相对论效应修正，从而得出本文的氢及类氢离子光谱精细结构值的理论计算公式，应用此改进公式，所得的计算值与实验观测值符合得很好，计算结果也反映了氢及类氢离子光谱精细结构数据变化的规律性。

Building on the work of his mentor Ernest Rutherford, Bohr developed his own atomic model that clarified and expanded the field of quantum theory.

工作的基础上他的导师欧内斯特卢瑟福，玻尔开发自己的原子模型，澄清和扩大领域的量子理论。

Taking example for A-type three-level atomic system, the theoretical model of EIT effect was given using semi-classical theory.

以A型三能级原子系统为例，用半经典理论给出了EIT效应的理论模型，分析了EIT介质的吸收和色散特性。

With consideration of the characteristics and current development of insurance industry, the third chapter establishes an e-business model for domestic insurance companies by applying the atomic e-business model theory.

第3章应用电子商务原子模式的理论，结合我国保险企业的特点和目前的发展状况，以及电子商务模式各自的优点和发展趋势，建立了针对我国风险经营企业—保险公司电子商务的应用模型。

There are three aspects:(1) logical analysis is the base and factors of building logical atomism;(2)proposition system of expressing scientific knowledge——atomic proposition, molecularproposition, and generalized proposition;(3) picture theory of prepositional meaning is the core of logical atomism.

主要有三个方面：(1)逻辑分析是逻辑原子主义建立的基础和条件；(2)表达科学知识的命题系统——原子命题、分子命题和概括命题；(3)命题意义的图像论是逻辑原子主义的核心内容。

The heavy elements in the theory of spontaneous metamorphosis immediate sensation around the world ;(4) is proposed to estimate the Earth's radiation age;(5) from the charge-mass ratio α which is derived helium ions;(6) from the scattering of α Bighorn recognized atomic mass concentrated in a radius of 10-12 meters in the nuclear, on positively charged core surrounded by negatively charged electrons;(7) with natural α-particles from the nitrogen nuclei in the outgoing protons, this is the first time human beings to change the chemical elements of artificial nuclear reactions;(8) predicted that heavy hydrogen and neutron sub-existence .

这一重元素自发蜕变理论立即轰动全世界；（4）提出用放射性估算地球年龄；（5）从α的荷质比得出它是氦离子；（6）从α大角散射认识到原子质量集中在半径为10－12米的核上，核带正电，周围是带负电的电子；（7）用天然α粒子从氮原子核中打出质子，这是人类第一次实现改变化学元素的人工核反应；（8）预言重氢子和中子存在。

To explore more efficient ion extraction methods used in atomic vapor laser isotope separation, RF resonance method of ion extraction is studied by theory and PIC simulation.

为了探索用于AVLIS的更为有效的离子引出方法，对等离子体的RF共振离子引出方法进行了理论研究，用PIC方法对其进行了模拟。

Based on the Miedema′s theory of electric charge shift,a modification of Mo-reen′s model of prediction of the lattice parameters in solid solution was approachedfrom the idea of the atomic size and separation in solid solution changing withsolute concentration.

根据Miedema电荷迁移理论，引入固溶体中原子尺寸和间距随溶质浓度改变的观念，修正了Moreen的固溶体品格常数预测模型。

The model utilized Density Functional Theory, which uses mathematics to mimic the atomic structure of a material.

模型利用了密度功能理论，用数学来模拟一个材料的原子的结构。

The Theory of Atomic Structure and Spectra Los Alamos Series in Basic and Applied Sciences, 3

中文参考译名：在基础和应用科学，3理论）的原子结构和光谱

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％。