many-body theory 中文意思是什麼
many-body theory
解釋
多體理論-
In part two of this paper, many - body perturbation theory has been used to calculate the resonance structure ( 3p - 3d ) into the photoionization ( 4s - kp ) for ion ca +
在本文的第二部分，運用多體微擾理論，我們計算了ca ~ +離子在4s kp的光電離過程中， 3p 3d躍遷的共振結構。 -
In this paper, we introduce quantum theory into the liquid crystals in order to research the collective effect ( i. e. the physics effect produced by many - body effect and collective excitation ). in this way, we research the microscopic theory of nematic phase and cholesteric phase
為了探索其集體效應（多體效應以及集體激發導致的物理效應） ，本文將量子理論引入到液晶體系，研究向列相和膽甾相的微觀理論。 -
The main work in this paper includes three parts : the theory research on partially - cavitating and super - cavitating axisymmetric bodies, the numerical computations and experimental investigations on partially - cavitation and super - cavitation on axisymmetric bodies. after finishing the study of theory and experiment on the partially - cavitation and super - cavitation for axisymmetric body, i use the potential flow theory to build the mathematical model on the partially - cavitation and super - cavitation for axisymmetric body. many cavity wake models, such as pressure recovery close model, riabouchinsky model and re - entrant jet model, are studied seriously
本文在深入研究了回轉體局部空化與超空化理論及實驗結果的基礎上，基於勢流理論，建立了回轉體局部空泡和超空泡流場的基本數學模型，通過對kinnas和fine 、 uhlman以及jiedang和gertkuiper等人基於二維水翼提出的壓力恢復閉合模型、鏡像板模型和回射流模型等空泡尾流模型進行了逐一的研究分析，發現其中的壓力恢復閉合模型較適用於模擬回轉體空泡尾部流場，並選用此空泡尾流模型作為求解回轉體空化流場正問題與逆問題的數學模型的組成部分。 -
Basic theory of dynamic model for human body system is emphasized, which deals with many basic problems such as human body ' s continuous dynamic system, discrete dynamic system, randomness, self - organization, simple huge systems and complex huge systems
重點討論了人體系統的動力學模型基礎理論，內容涉及人體系統的連續動態系統、離散動態系統、人體系統的隨機性、自組織、人體系統的簡單巨系統、復雜巨系統等諸多基礎問題。 -
Due to the nonlinearity and complexity of many - body problems, the molecular statistical theory of liquid crystals has not been perfect as yet
液晶的分子統計理論，由於多體問題所涉及到的非線性和復雜性，至今遠遠沒有得到完善的答案。 -
In the thesis we firstly introduce one - dimensional spin - 1 / 2 jordan - wigner transformation and the holstein - primakoff transformation that are used widely in the quantum many - body theory. secondly, another form of one - dimensional spin - 1 / 2 jordan - wigner transformation is discussed
本文中，我們首先介紹了在量子多體理論中廣泛應用到的一維自旋- 1 2 「 jordan - wigner 」變換以及「 holstein - primakoff 」變換。 -
Bfs sensitively probes inter - electron correlation, relativistic and quantum electrodynamics corrections, so it can be used to test the basic many - body atomic theory or interpret spectra from space. the main contents of this dissertation are as follows : 1 the history and development of beam - foil spectroscopy are reviewed, and the characteristics of bfs are also described. the main applications in the spectroscopic studies and lifetime measurement of highly ionized ions are summarized
本文對高離化態cu和ge離子的光譜進行實驗研究，得到了一些新的實驗結果，論文的主要內容如下： 1回顧了束箔光譜法的發展歷史，介紹了束箔光譜法的優點；總結了束箔光譜法在高離化態原子能級研究，高離化態原子能級壽命測量等方面的主要用途。 -
In the latest years, people have designed and made many types of magnetic micromotors, but there are still many problems and much work w hich needs to do about the working principal, design theory and experimental research of magnetic micromotors, this dissertation was just aimed at these problems and did following work : first, on the basis of analying and comparing the working principals and structures of available magnetic micromotors, this dissertation proposed a new type of magnetic micromotor, introduced its structure, controlling methods and the features. according to the basic principles of the fixed - point movement of the rigid body, the dissertation revealed the moving relationship between the rotation of the inner magnetic field of the motor and the rolling of the rotor, presented the moving equation of the rotor and the calculation formula for the rotation ratio between the the inner magnetic field and the rotor, and so made clear the relationship between the structure parameters and the moving characteristics of the motor
十年來，人們已經設計製作出了多種形式和結構的電磁微電機，但是有關電磁微電機的設計理論和實驗研究仍然處于探索完善階段，本文正是針對這方面的問題以電磁式微電機為研究對象做了以下工作：首先，在對電磁式微電機的各種工作原理和結構方案進行深入研究和分析比較的基礎上，本文首次推出了「端面搖擺式電磁微電機」的設計思想，介紹了其結構原理、控制原理和該電機的特點，並從剛體定點運動的基本原理出發，揭示了電機內部磁場的旋轉與轉子滾動之間行星減速的運動關系，推導出了轉子的運動方程和電機旋轉磁場與轉子的減速比計算公式，從而明確了電機結構參數與電機運動特性的關系。 -
This dissertation concentrates on photoionizaiton of mnl and mnll including resonance structure in the framework of many - body perturbation theory ( mbpt ). more accurate results were obtained by using the new approach to calculate resonance structure and photoionization cross section
首先針對錳原子或離子不同殼層的光電離結構進行特定的理論分析，然後通過合理的選擇勢能及共振結構的計算方法，並考慮高階關聯，得到了一系列新的更為精確的光電離截面及共振結構。
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