second-order effect 中文意思是什麼

second-order effect 解釋
二級效應
  • second : adj 1 第二的；第二次的；二等（的）。2 次等的；較差的；劣於…的 （to）。3 〈美國〉較年輕的。4 另一...
  • order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
  • effect : n 1 結果。2 效能，效果，效力，效應，作用，功效；影響。3 感觸，印象；外觀，現象。4 旨趣，意義。5 ...
  1. It has been shown that : the little indentation which represents the quantum noise of the system appears in the evolution curves ; the quantum noise which is caused by virtual photon field gradually becomes weak when w increases, the quantum noise increases when n increases ; the virtual photon process make the antibunching effect strengthen, make the squeezing degree deepen obviously, and lead to the additional vibration of entropy, the oscillation extent of the additional vibration of entropy increases when n increases and decreases when co or g increase. besides, the quantum dynamics of two coupling atoms interacting with a single mode ligh t field in a kerr medium is studied in this paper ; the influences of the kerr effect on the mean photon number, the degree of second order coherence of field, the evolution of the field entropy and the squeezing effect are also discussed

    ）的增大，量子噪聲分別減小和增大；虛光子過程使光場的反聚束效應增強，使光場的壓縮程度明顯加深，並引起了附加的「熵振蕩」 ，這種附加「熵振蕩」的幅度將隨著光場初始平均光子數（ ? ）的增加而增大，隨著光場頻率和原子間耦合系數g的增大而減小。本文還研究了充滿kerr介質腔中「耦合雙原子-單模光場」相互作用系統的量子動力學性質，研究了克爾效應對場的平均光子數、二階相干度、場熵演化特性及光場壓縮效應的影響。
  2. Resonance enhancement of electro - optical effect by second - order nonlinear optical polyurethane

    二階非線性光學聚氨酯對電光效應的共振增強
  3. Result shows, the uncertainty of parameter leads to negative ( positive ) investment horizon effects when investor ' s risk aversion is more ( less ) than that of logarithmic utility ; the effects of parametric uncertainty will weaken when investor uses more past data in his estimation, or when his risk aversion increases ; the effect of the first order moment ' s uncertainty is stronger than that of the second order moment ' s uncertainty

    研究表明，當投資者的風險規避程度大於（小於）對數效用時，參數不確定性將導致負（正）的投資期效應；當投資者在估計過程中運用較多的歷史數據、或者風險規避程度增加時，參數不確定性的影響將減弱；收益一階矩的不確定性影響較其二階矩強。
  4. The present findings of nonlinear research in frame structures, and the methods for design of second - order effect in the codes from china and other countries, were briefly introduced in this paper. the contents and methods of design and calculating about second - order effect in gb50017 - 2003 were discussed as well. a rotational displacement equation for geometric nonlinear structures was derived, and then a nonlinear finite element program for rigid frames was compiled by fortran

    本文簡要地介紹了框架結構非線性研究的現狀以及各國規范對框架二階效應的設計內容和方法；對我國《鋼結構設計規范》 gb50017 - 2003給出的考慮框架結構二階效應的方法進行了探討；推導了基於幾何非線性框架的轉角位移方程，在此理論基礎上用fortran語言編制了剛性框架二階內力分析的有限元計算程序，並用此結構分析程序對多種框架進行了一階和二階的彈性分析，討論了二階效應在框架分析中不應忽略的原因，同時分析了影響框架二階效應的因素。
  5. Effect of self raman scatter and tird - order dispersion on the second - order soliton

    自拉曼散射及三階色散對二階孤子的作用
  6. In this paper, considering the additional bending moments of the axial load about the lateral displacements ( i. e. the second - order effect ), an iterative computer analysis procedure is proposed to predict the load - deformation relations and ultimate loads of steel - concrete composite columns of arbitrary cross section

    本文考慮長柱在軸向荷載作用下的附加彎矩影響（二階效應） ，提出了一種適用於任意截面形式鋼-砼組合長柱的荷載-變形關系分析和極限承載力分析的數值迭代計算機方法。
  7. Influences of second - order effect on structural analysis of steel frames

    二階效應對鋼框架結構分析的影響
  8. When the elastic design method is used, the paper proposes the recommendation that designer can not consider second - order effect on structural internal force, but must consider the effect on drift computing, and also gives a simplification method for calculating the second - order drift. base on above research achievements and referencing current design codes and research documents, this text has done overall discussions on the elastic design method, the chief works includin

    基於前面的研究成果，參考現有各國鋼結構設計規范和已有的研究文獻，本文首次對鋼結構錯列析架體系的彈性設計方法作了全面的探討，主要工作包括材料的選用、構件截面形式、構件彈性設計方法、連接節點設計和構造詳圖、組合樓蓋的設計、栓釘剪力連接件的設計。
  9. It applies an interval method to select element in the evolutionary structure optimization method ( eso ), and recovers or deletes element by the “ birth and dead ” function of element. another method viewed as second order smoothing technique for suppressing the checkerboard patterns has been proposed based on the filtering function ’ s principle. then the above methods are applied to solve a temperature - controlling problem in the steady heat conducting field and a multi - objective topology optimization problem considering multiple load cases and coupled effect

    本文基於ansysparametricdesignlanguage （ apdl ） ，提出漸進結構法中應用區間法進行單元的篩選，通過單元「生死」的功能實現單元的恢復與刪除，根據濾波函數法原理提出修改的二階棋盤格處理方法，並就穩態熱傳導溫度控制問題，考慮熱、力耦合的多載荷工況的多目標拓撲優化設計問題進行求解。
  10. The dispersive influence, especially the influence of the second - order and third - order dispersion, is researched first. in this part, the influence of the third - order dispersion on the super - gaussian pulse is mainly discussed, and the difference between gaussian and super - gaussian pulse is also qualitatively discussed ; the effect of the initial chirps is researched

    從而，本文首先對色散效應進行了研究，分析了二階和三階色散對光纖中光脈沖波形的影響，其中著重研究了三階色散對超高斯型光脈沖波形的影響，定性地分析了其與高斯型光脈沖波形演變的不同，並對初始啁啾的影響進行了闡述。
  11. In this paper, slender columns with the two ends hinged are considered. an iterative computer analysis procedure taking into account the second - order effect of the axial load is proposed to predict this complete load - deformation process

    本文針對兩端鉸接的任意截面鋼-砼組合長柱，考慮長柱在偏心荷載作用下的附加彎矩影響（二階效應） ，提出了一種數值迭代的計算機方法進行全過程分析。
  12. In this paper, the nonclassical properties of two two - level atoms interacting with a single mode light field is studied by means of the quantum theory without rotating wave approximation ; the influences of the yirtual photon process on the mean photon number, the degree of second order coherence of field, the evolution of the field entropy and the squeezing effect are also discussed

    本文利用全量子理論，研究了非旋波近似下「耦合雙原子-單模光場」相互作用過程中光場所表現出的非經典性質，研究了虛光子過程對場的平均光子數、二階相干度、場熵演化特性及光場壓縮效應的影響。
  13. We analyze the generation of external cavity frequency - doubling with knbo3 crystal theoretically. in order to get the second - order nonlinear conversion from 858nm to 429nm with knbo3, we use non - critical type - i phase - matching to avoid the walk - off effect the corresponding optimum focusing condition is as followings : double refraction parameter b = 0, focus parameter = 2. 84, optimum phase mismatch parameter = 0. 574. based on the theoretical analysis and numerical calculations, we obtain the ideal nonlinear conversion coefficient about 1. 45 % / w with crystal length of 7mm and 2. 07 % / w with crystal length of 10mm at the phase - matching temperature around 23. 50c

    根據對其倍頻原理及性能的分析討論，在用該晶體完成波長從858nm到429nm的二階非線性轉換時，採用非臨界相位匹配條件（此時無離散效應，對應的雙折射參數b = 0 ，共焦長度為= 2 . 84 ，最佳相位失配因子為= 0 . 574 ） ，在相位匹配溫度約為23 . 5時，理論上通過計算得到理想情況下非線性轉換系數約為1 . 45 / w （長度為7mm ） ， 2 . 07 / w （長度為10mm ） 。
  14. According to the mathematic modeling principle of physical problem, the error of lattice boltzmann model is analyzed in chapter 3. the nonlinear deviation term from the navier - stokes equation is given, and the main model coefficients, such as speed of sound, viscosity and so on, are verified by numerical computation, the results show that the lattice boltzmann method has second order precision in space and in time which satisfy the engineering application, whereas, the compressible effect ca n ' t be neglected along with mach number increasing, and must be reduced or eliminated

    其次，按照物理問題數學建模的原則，對格子法的誤差進行了分析，給出了格子bgk方程再現navier - stokes方程時的壓縮誤差項，並數值驗證了格子模型的聲速及粘性系數等相關參數的精度，表明格子模型盡管具有時空二階精度，能滿足工程計算的要求，但隨著mach數增大，壓縮誤差逐漸成為主要誤差，必須予以消除。
  15. It is well known that the coupled interactions between the ship hull and the surrounding fluid field of explosion give rise great influence to both the fluid loadings over the structural wetted surface and the responses of the hull. jt is the coupling effect that provides the major difficulties in the underwater explosion induced dynamic responses of the ship structure. the second order doubly asymptotic approximation method ( dda2 ) has been commonly employed in the world to deal with the coupling effect

    本文針對daa方法不適合於分析敷有聲阻抗與水差不多的聲學材料（如玻璃鋼與消聲瓦）的船體結構與水下沖擊波相互作用的局限性，依據聲波的反射和透射原理對二階daa方法的高頻段進行了改進，發展並提出了能夠分析聲學材料流固相互作用的adaa方法（ acousticdaa ） ，拓展了應用范圍，使現有的二階daa方法成為它的一個特例。
  16. The paper proves that in the 2d non - linear case, the coulomb gauge is been meet naturally. in the paper, the second - order isoparametric fem is adopted in the non - linear transient magnetic field simulating excited by current source and the results of transient field and static field solved by the second - order isoparametric and linear fem are compared and analyzed, besides, the effect of the eddy currents in the magnetic materials of the different conductivity is analyzed, it is obtained that the magnetic material of high magnetic conductivity and low loss should be chosen in designing of pma

    文中採用二次等參元有限元法推導出在電流源激磁下的非線性瞬態磁場的計算方法和編制了相應的計算程序，並採用二次等參元有限元法和雙線性有限元法分別對瞬態場和靜態場進行了計算，並對計算結果進行了誤差分析，此外，還對不同電導率的導磁材料中渦流產生的影響進行了分析，得到結論設計永磁操動機構時，應選擇導磁性能好，損耗低的導磁材料。
  17. Second order effect due to displacement

    撓曲二階效應13
  18. “ there is nothing wrong with doing something that benefits all humanity, but that is, in a sense, a second order effect

    做一些有益於全人類的事情並沒有錯，但從某種意義上講，那不是頭等大事。
  19. We get the conclusion meanwhile, after considering the second order effect, the horizontal deflection of the frame becomes larger ; and affections of second order effect should be considered on the multi - storey and high build ing frame

    結果還說明，考慮二階效應后，框架的水平側移增大，而對于多、高層框架，有必要考慮二階效應的影響。
  20. A curved beam element is proposed for the elastic and elasto - plastic large - displacement analysis of thin - walled curved beams based on the new developed nonlinear theory. using polynomial displacement functions, the proposed element includes the second order effect associated with geometric and material nonlinearities

    基於新的曲梁非線性理論，提出了一種以多項式作為位移模式，可以同時考慮幾何和材料非線性的薄壁曲梁單元，用於曲梁的彈性和彈塑性問題分析，並編制了相應的有限元程序。
分享友人
分享到 Line

分享到臉書