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- This paper discusses the critical behaviors and magnetic properties of the spin-1 bond and crystal field dilution Blume-Emery-Griffiths (BEG) model on simple cubic lattice within the framework of effective field theory (EFT). 本文在有效場理論的框架內,基於簡立方晶格討論了自旋為1的鍵和晶場稀疏Blume-Emery-Griffiths(BEG)模型的臨界行為和磁學性質。
- Establishing reasonable ecological field model is the key problem of EFT. 生態場理論的主要問題是建立合理的生態場模型。
- transverse crystal field dilution Ising model 橫向晶場稀疏Ising模型
- Because Eu2+ is surrounded by host ions, mixed states of 4f5d will be split by the crystal field and the luminescent wavelength will be changed. 由於Eu2+被基質離子所包圍,基質離子所產生的晶體場使Eu2+離子的4f65d混合能級劈裂,從而改變發光的波長。
- The ESR spectra of BaCl2: Eu powder showed that Eu2+ ion substituting the ion Ba2+ is situated in a crystal field of the orthorhcmbic symmetry. 製備和用X射線分析BaCl_2:Eu微晶的結構,並測量它的電子自旋共振(ESR)譜,結構分析和ESR譜都表明,替代Ba~(2+)的Eu~(2+)離子是處在軸對稱的正交晶場中;
- The principle of the car acceleration noise is discussed and the acoustic field model for underneath car cavity is derived. 論述了轎車加速行駛雜訊的原理,推導了轎車與地面間聲場的聲學模型。
- Molecular Orbital Theory and Crystal Field Theory demonstrated the possibility of the complextion reaction between L-Cys and hemoglobin. 運用分子軌道雜化理論和配合物晶體場理論論證了半胱氨酸和血紅蛋白之間發生配位反應的可能性。
- Firstly, a rough motion template was obtained by motion detection based on Markov random field model and through post-processing. 該演算法首先利用馬爾可夫隨機場模型的運動檢測演算法,得到運動目標的初始模板。
- The normal field model of surface charge accumulation at the gas-solid interface of insulator is analyzed. 論文對絕緣子氣 -固交界面電荷積聚的法向場強模型進行了分析 ,發現現有的法向場強模型只能解釋氣體側有微放電情況下的電荷積聚問題。
- Hence it wasfound that the promotion effect of the first transition series ions was qualitalively relat-ed to its crystal field stabilization energy (CFSE). 而且發現,第一過渡金屬離子的助催化作用與它的晶體場穩定化能(Crystal Field Stablization Energy,CFSE)有關。
- The crystal field effect of rare-earth ions in crystal, due to the screening effect of 5s2, 5p6 lamella, can only produce very faint perturbation to 4f electrons. 晶體中的稀土離子,由於5s2,5p6殼層的屏蔽作用,晶場作用只對4f電子產生很弱的微擾,因此,它們的光譜和自由離子情況很相似,晶場對能級的影響只在幾百個波數範圍。
- In the light of the inwall depression in the process of tubular intermediate upseting, a parallel velocity field model with depression is established. 針對管坯中部鍛鍛變形過程中產生的內壁凹陷現象,建立了含凹陷的平行速度場模型。
- Due to the change of the crystal field, their orientational orders are distinctly different from those in bulk system, and some unique phenomena appear. 由於外部晶場環境的改變,這兩種體系的分子取向序與宏觀C60晶體材料有著明顯不同,並且出現了一些特殊現象。
- Firstly,a maximum a posteriori framework is created according to conditional random field model and Markov random field model. 首先根據條件隨機場模型和馬爾可夫隨機場模型建立了一個最大后驗概率框架。
- A multi-phase field model coupled with mass,momentum,energy and solute conservation equation was introduced to apply for macro simulation. 宏觀部分著重介紹了一種耦合質量、動量、能量及溶質平衡方程的多相模型。
- Methods: The coil array of transcranial brain multichannel magnetic stimulation is designed and the theoretical field model is built in this paper. 方法:設計了一種新型經顱磁刺激儀的線圈陣列,建立在人體頭部產生的電磁場模型。
- In accordance with the theory of heat transfer and fluid mechanics, the paper presents the stator 3D temperature field model of turbogen- erators. 根據傳熱學和流體力學的基本原理,提出了汽輪發電機定子三維溫度場的數學模型,模型中考慮了溫度場與流體場的耦合。
- ANSYS was introduced into the magnetizing system for steel pipes to improve the design of magnetization and set up magnetic field model. 將ANSYS引入鋼管磁化系統分析,通過模擬試驗來改進檢測設備的磁化設計,建立磁場模型。
- Calculated results of finite element were consistent with the experimental results, which verified the established temperature field model. 有限元計算結果與試驗結果一致,證明所建立的溫度場模型是合理的。
- On the basis of perturbation theory, HMO method is used to calculate d~ configuration stabilization energy (i. e crystal field stable energy, CFSE) which in some cases should be considered in determining molecular structure of coordination compounds. 根據微擾理論,用HMO法計算了各種d~n構型的穩定化能(即晶體場穩定化能,CFSE),這是在若干化合物決定構型時須予考慮的另一因素。