精细结构

Microscopic structures of Zn surface complexes adsorbed at the manganite water interface were studied using extended X ray absorption fine structure spectroscopy.

用延展X光吸收精细结构光谱研究了重金属Zn在水锰矿上吸附产物的微观结构及其吸附机理。

Afterwards, using the spherical tensor form of many-electron atom Hamilton and the irreducible tensor theory, the relativistic and fine-structure energy correction to the non-relativistic energy of Boron-like atoms in the ground and the first excited states have been further investigated. A theoretically analytic way has been given as to the calculation of all the radial integrations and spin summations, which concern interactions such as orbit-orbit, spin-orbit, spin-spin and spin-other-orbit. Therefore, the whole process of calculating the many- electron atom energy structures has been explicitly revealed and the results are relatively precise and satisfactory.

在此基础上，利用多电子原子哈密顿算符的球张量形式和不可约张量理论，进一步研究了类硼离子基态和第一激发态非相对论能级的相对论修正和精细结构，给出了轨道-轨道、自旋-轨道、自旋-自旋、自旋-其它轨道等相互作用所涉及的所有角向积分和自旋求和的解析计算方法，清晰地展示了多电子原子结构计算的过程，得到了较为精确的理论计算结果。

Finally through a series of contrast analyses of thermogravimetric properties and chemical structure changes between polymer and model compounds the thermolysis mechanism of PBO was put forward.

利用拉曼光谱、扫描电子显微镜、XRD以及透射电子显微镜方法研究了纤维的表面结构和精细结构，提出了纤维的结构模型。

Aim The relations between the fine-spectra and local structure of 3d3 ions at trigonal crystal field have been investigated.

目的研究三角晶场中3d3离子光谱精细结构和晶体局域结构之间的关系。

The structural evolution of ultrafine NiB and NiP amorphous alloys prepared by c hemical reduction during the annealing process is investigated by X-ray absorpt ion fine structure, X-ray diffraction and differential thermal ana lysis techniques.

摘 要：采用X射线吸收精细结构，X射线衍射和差热分析等方法研究了以化学还原法制备的NiB和NiP超细非晶态合金催化剂在退火过程中的结构变化。

XRD showed hexagonal wurtzite structure. Room-temperature PL spectra of perfectly overcoated CdSe/ZnS only showed a narrow band edge emission. Emission peak was great red-shifted relative to absorption and the shift increases as the size decreases. The size-dependence of shift could be explained very well in terms of excition fine-structure model and stress at interface owing to lattice mismatch contributes to the shift between CdSe and CdSe/ZnS with the same size.

结果显示表面修饰完善的样品的荧光光谱只有一个窄而强的带边发射；所有样品的荧光峰相对于1S-1S吸收峰有较大的红移，并且移动量随尺寸的减小而增加，利用激子的精细结构模型很好地解释了红移量和尺寸的关系；核／壳结构的样品的吸收峰和荧光峰相对于同尺寸的单量子点也有红移现象，这是由于CdSe和ZnS的晶格失配在界面上产生压力造成的。

The relationship between the microstructure and the electrochemical surface characteristics of the oxide anodes was explained.

了解成分和基体表面预处理对铱钽氧化物阳极形貌和精细结构的影响，揭示了铱钽氧化物阳极的微观结构和表面电化学特征之间的关系。

Treatment by different methods, samples in original state, free of wax, free of lignin and hemicellulose were obtained. Then, they were attached on the surface of new cleaved mica and measured by tapping mode AFM. It was found that the main structure of straw cell wall is composed of buddles of cellulose microfibrils, and hemicellulose links them together to form a network structure, on the surface of the network lignin aggregate together to form a protect level. The AFM result consistency very well to the theoretical model of cell wall proposed by Vincent.

在第一章中，我们选择了来源丰富的细胞壁资源小麦秸秆作为研究对象，通过选择不同的样品制备方式，分别得到了细胞壁原始状态、脱除蜡质、脱除木质素及半纤维素的样品，利用Tapping mode AFM我们观测了样品表面的精细结构，发现细胞壁中纤维素、半纤维素及木质素之间存在与理论预测基本一致的关联结构。

The main works included atomic structures and properties of the superheavy element Hs(Z=108)and Uub(Z=112)as well as hyperfine structures of Be-like ions.

主要工作分为两部分，1研究了Hs(Z=108)和Uub(Z=112)原子的能级结构及激发态、离子态性质，2研究了高离化态类铍离子的超精细结构。

In this thesis,we first introduced the multi-configuration Hartree-Fock theory. On the basis of this method,we investigate energy-level structures,transition probability and hyperfine structure for complex atoms.Furthermore,we analysed the strong electron correlation effects in atomand strong relativistic effects in heavy element.

本论文介绍了多组态Hartree-Fock理论方法，并利用此方法研究了一些原子体系的能级结构、跃迁几率和超精细结构，分析了这些原子体系中比较强的电子关联效应和重元素中强的相对论效应。

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％。