漸近反應 的英文怎麼說

中文拼音 [jiānjìnfǎnyīng]
漸近反應 英文
evolution reaction
  • : 漸副詞(逐步; 漸漸) gradually; by degrees
  • : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
  • : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
  • : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
  • 漸近 : [數學] [物理學] asymptotic; approximation漸近操作(法) evolutionary operation; 漸近點 asymptotic...
  1. In chapter 3, two nonlinear modified gilpin - ayala models with distributive delay and continuous diffusion are studied. some simple sufficient conditions for globally asymptotically stable and asymptotically stable of the unique positive equilibrium point are established by constructing lyapunov functional

    在第二章中,我們研究的擴散行為是離散的,而在第三章中,我們研究兩類含連續擴散行為的非線性時滯gilpin - ayala模型(擴散方程) ,通過構造lyapunov泛函獲得其平衡態全局穩定、穩定的一些充分條件。
  2. Asymptotic behavior of solutions in nonautonomous prey - predator system with beddington - type functional response

    型功能性的非自治捕食系統的性質
  3. In the light of the recent work in biological models, especially in the chemostat models, the dissertation provides a systematic study on the asymptotical behaviour of some chemostat models built by delay or diffusion differential equations. the main contents and results in this dissertation are as follows : i ) the global asymptotic behavior of the chemostat model with the beddington - deangelies functional responses and time delays is studied. the conditions for the uniform persistence of the competing populations are obtained via uniform persistence of infinite dimensional systems

    本論文基於當前生物學模型,特別是恆化器模型的研究現狀,深入系統的研究了時滯和擴散方程描述的幾類恆化器系統的性態,本文的主要內容包括以下幾個方面:一、研究了具有beddington - deangelies功能性函數的時滯恆化器模型,利用無窮維連續動力系統的一致持續生存的理論給出了兩競爭種群一致持續生存的充分條件,利用單調動力學系統得到了系統的全局穩定性。
  4. This paper consists of three parts : we first consider the non - autonomous predator - prey system with both beddirigton - deangelis functional response and dispersion. by using comparison theorem of differential equation, we study the permanance of the system. after that, by constructing suitable lyapunov function, we obtain some sufficient condition which guarantee the existence of globally asymptotically stable almost periodic solution of the system

    本文研究三方面的內容:第一部分考慮具有擴散和beddington ? deangelis功能的捕食-食餌系統,利用微分方程比較原理得到該系統一致持續生存的條件;通過構造適當的lyapunov函數得到了該系統存在全局穩定概周期解的充分條件。
  5. With the adoption of the rate - sensitive constitutive relationship, it is asymptotically investigated the propagating tip fields of antiplane mode iii crack under the condition of incompressibility, and the dynamics equations are obtained separately governing the stress and strain fields at the crack - tip

    採用這種率敏感型本構關系,本文對不可壓縮條件下平面型擴展裂紋的尖端場進行了分析,分別求得了其裂紋尖端力和變場的動力學控制方程。
  6. In this thesis we study the existence of periodic solutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion equations with nonlocal boundary value conditions, the existence of periodic solutions or periodic quasisolutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion systems with nonlocal boundary value conditions. the whole thesis is made up of three chapters

    本文研究時間變量是周期的擴散方程在非局部邊值條件下周期解的存在性及其一般時變解的性態;研究時間變量是周期的擴散方程組在非局部邊值條件下周期解或周期擬解的存在性及其一般時變解的性態
  7. Recent years, the using of piezoelectric sensors becomes a focus in novel biosensors research. the basic principle is that the characters of its oscillation are highly responded with the changes of the surface mass adsorption, or the physic characters in the reaction system including density, viscosity, conductivity and so on. a piezoelectric biosensor with a nanogram sensitivity could be constructed through a reasonable biological processing and structure designing to the piezoelectric quartz crystal

    年來,壓電傳感器檢測技術逐成為生物分析中的研究熱點,其基本原理是利用石英晶體振蕩特性對石英晶體表面質量負載(質量效)和體系物理性狀如密度、粘度、電導率(非質量效)等的改變具有高度敏感的特性,通過對石英晶體進行適當的生物學處理和結構設計,構建出具有具有ng級檢測能力的生物傳感器。
  8. In ship steering controller design, the nonlinear ship model should be written in siso strict feedback form. we start the recursive design with the system first state variable and continue with the second one. by introducing a change of coordinates, we choose lyapunov functions to stabilize the system and obtain the control law

    在船舶航向控制方面,考慮船舶的穩態回轉非線性,用backstepping方法設計:首先把系統化成單入單出的嚴格饋控制形式(呈下三角結構) ,假設系統后一個狀態變量是前一個狀態變量的虛擬控制,通過適當的變量代換,在每一步構造李亞普諾夫函數,使前一子系統在虛擬控制下穩定,逐步遞推出控制器控制規律,使整個系統在平衡點滿足一致穩定性。
  9. A new robust adaptive scheme which are used for tracking of this robot with parametric and bounded external uncertainties is proposed in this thesis. the controller is consist of a controller which is proposed by slotine1 ' 1 and nonlinear continued feedback compensation part. by estimating the unknown physical parameters of robot on - line, it can eliminate the effects result by parameters and external disturbances and guarantee gas and uniform boundedness of parametric estimation. the only information required in setting up the strategy is the output states of jionts, while the inversion of the inertia matrix or estimation the bound of the inertia matrix and measure the jionts accelerations are not needed. it is shown by simulations that the proposed control scheme has quicker convergence velocity and better control precision than paper [ 1 ] and control schemes at present

    針對該模型具有參數及有界外部擾動不確定性時提出了一種新的魯棒自適控制策略,控制器由基於slotine的控制器和非線性連續饋補償控制器構成。通過在線估計機器人的未知物理參數,有效的消除了由參數及外部擾動所引起的不確定性影響,保證系統達到穩定和參數估計一致有界。與現存的許多控制方法相比,該控制策略不需求解慣性矩陣的逆或估計慣性矩陣的界,不需測量關節加速度,而唯一需要了解的只是系統輸出的位置及速度狀態。
  10. Asymptotic solutions of the relaxation oscillations in the revised oregonator model of the belousov - zhabotinsky

    修正的俄勒崗模型的弛豫振蕩的
  11. Asymptotic solution for a class of nonlinear integro - differential reaction diffusion equations

    一類非線性積分微分擴散方程的
  12. The theory and method of the partial stability are applied to the state feedback stabilization of uncontrollable systems. therefore a new method for stabilization of uncontrollable systems is established

    摘要關于不能控系統的狀態饋鎮定問題,經典的提法是假定其不能控子系統是穩定動。由於變數代換的原因,該條件沒有明確的實際意義,不便於用。本文利用部分變分穩定性理論建立新的解法。
  13. In this part, response spectrum and fourier amplitude spectrum are studied, the main results are as follows : 1 ) response spectrum analysis : a ) absolute acceleration response spectrum ( sa ) : ( 1 ) in general, response spectrum decrease with depth, for m < 4. 5, the shape and the predominant period of each response spectrum in different depths are similar : the variation of spectra with depth focus on near - surface level ; the normalized spectra are similar to each other, except the predominant perk value in middle depth of some earthquakes is higher than other depth

    地震動譜沿深度變化的規律( l )加速度譜( s 、 )沿深度的變化規律一般,加速度譜( s 。 )隨深度的增加而減小。震級較小時,不同深度各測點的譜形狀很相似,卓越周期基本一致;淺層處譜沿深度的變化梯度較大;深層處譜大小比較接;強震時,譜形狀在短周期有較小差別,長周期逐
  14. The asymptotic behaviour for a class of chemical interficial reaction - diffusion models

    一類界面化學模型的解的
  15. So the various time response histories of structures are realistically described and the seismic field - movements of the system are simulated under different working conditions such as various earthquake waves elasticity or elastoplasticity of soil and pile - soil contact etc. the linear or nonlinear characteristics of histories response of upper - lower structural parts under seismic are prominently re - shown by means of gradual meshing finite - elements for near - far fields with the 3d spring - dashpot boundary elements. based on the above analysis, many designs and tests about interactive structures may be developed accurately

    該方法的最大特點是結合、遠場域的有限單元網格分技術,通過邊界三維彈阻單元的設置,可以突出再現上、下部共同作用體系在地震作用下的全時程線性、非線性特性,從而為精確開展各類結構動力相互作用的設計與試驗測試奠定了一定的理論基礎。
  16. Vi ) the asymptotic behavior of flow reactor models with two - nutrient are considered

    六、研究了一類生物器中雙營養擴散模型的性態。
  17. In chapter 1, we establish the upper and lower solutions method of the existence of periodic solutions and the local asymptotic behavior for scalar periodic reaction - diffusion equations with nonlocal boundary value conditions

    全文由三章組成。在第一章,建立帶非局部邊值條件的單個擴散方程周期解的存在性及其局部性態的上、下解方法。
  18. In chapter 2, we apply the results of chapter 1 to establish the upper and lower solutions method of the existence of periodic solutions or periodic quasisolutions and the local asymptotic behavior for periodic reaction - diffusion systems with nonlocal boundary value conditions

    在第二章,用第一章的結果建立帶非局部邊值條件的擴散方程組周期解或周期擬解的存在性及其局部性態的上、下解方法
  19. Asymptotic behavior of solutions of a class of nonlinear reaction diffusion equations

    一類非線性擴散方程解的性態
  20. As an extension, we shall also consider similar problems for mixed quasimonotone reaction - diffusion systems with nonlocal boundary value conditions which kernel ki ( x, y ) is alternating sign. finally, in chapter 3, we use the above results to investigate the existence of positive periodic solutions and asymptotic behavior of solutions for the logistic equation with nonlocal boundary value conditions

    我們還將非局部邊值條件中的核函數k _ 1 ( x , y )推廣到不必定號的情況,對混擬單調擴散系統周期擬解的存在性及其局部性態獲得了類似的上、下解方法。
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