漸近形 的英文怎麼說

中文拼音 [jiānjìnxíng]
漸近形 英文
asymptotic form
  • 漸 : 漸副詞（逐步; 漸漸） gradually; by degrees
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 漸近 : [數學] [物理學] asymptotic; approximation漸近操作（法） evolutionary operation; 漸近點 asymptotic...
  1. Centroid of asymptotes

    漸近線的形心
  2. In the end, the impedance matrix of any three - dimensional conducting object can be portioned into sub - matrices by the projection iterative method ( pim ), the surface current and rcs can be calculated with convergent iterations, the wide - band electromagnetic scattering characteristics of three - dimensional conducting objects are also analyzed with the asymptotic waveform evaluation technique

    最後應用投影迭代方法（ pim ）將三維導體目標的阻抗矩陣剖分成小矩陣，通過迭代計算出表面電流和雷達散射截面，並與漸近波形估計技術結合分析了三維導體目標的寬帶電磁散射特性。
  3. Asymptotic analysis of a rubber wedge contact with a rigid notch

    橡膠楔體與剛性缺口接觸大變形漸近分析
  4. The boundary value problems of singular perturbation with boundary layer at turning points are discussed. the asmptotic expansion are constructed. and the uniformly valid asmptolic estimation is obtained

    主要討論了在轉點處出現邊界層現象的奇異攝動邊值問題，構造了形式級數解，得到了一致有效的漸近估計
  5. We prove theoretically that under certain reasonable assumptions the formation is asymptotically stable even wills bounded disturbances ; that is, the proposed sliding mode controller can asymptotically stabilize the errors in relative distance, relative bearing and heading direction, respectively

    在合理的假設下，從理論上證明了存在有界干擾情形下機器人編隊的漸近穩定性，即所設計的滑模控制器使得相對距離誤差、方位角誤差及運動方向誤差漸近穩定。
  6. In this paper, we give a kernel shape estimation of m ( x ) using variable bandwidth local linear refression approch, and discuss the asymptotic normality, the convergence rate of mean square and convergence rate with probability

    本文對上述模型，利用變窗寬局部線性回歸方法，給出了m （ x ）的核形估計，並討論了這一估計的漸近正態性、依概率收斂速度、和均方收斂速度。
  7. The warping is found in terms of the 1 - d strains via the variational - asymptotical method ( vam ) and then cross - sectional stiffness for a gpr blade with arbitrary geometry and material property can be obtained

    根據1維應變，用變分漸近方法建立翹曲位移，然後可以得到具有任意幾何形狀和材料特性的玻璃鋼葉片的橫截面剛度。
  8. In the third chapter, we introduce geometric expansion of convex planar curves. we discuss the evolution equation using minkowski ' s support function with the speed function of curvature and show that the shapes of curves become round asymptotically when the initial closed curves is smooth and convex

    限制曲線在外法向上的演化速度是另一類特殊的曲率函數，研究相應的方程，我們得到了在初始為凸的閉簡單光滑曲線的條件下，曲線的最後形狀是漸近地趨於一個圓。
  9. Multi - channel deconvolution, based on multi - channel signal analysis, is presented to recover receiver function from three - component teleseismic p waveforms clustered within certain backazimuth and epicenter distance, to increase the resolution of receiver function. wavelet inversion is also introduced to broadband receiver function, to solve for nonuniqueness cased by linear approximation of nonlinear problem, and broadband receiver function is decomposed into multi - resolution versions, and the inversion result for the low - resolution version is iteratively taken as the initial model for the high - resolution, and gradually obtain the inversion model for broadband receiver function

    為克服廣義線性反演對初始模型的依賴性，並保持其快速收斂的特點，本文首次將小波變換引入到接收函數波形反演，將接收函數分解到不同的分辨尺度上，分別進行廣義線性反演，並將低解析度的反演結果作為高解析度反演的初始模型，漸近地獲取寬頻帶接收函數的模型，克服了非線性問題線性化帶來的非唯一性。
  10. The variable bandwidth local linear regression method we used in this paper have the advantages of both the local linear regression method and the variable bandwidth idea. the variable bandwidth henced the flexibility of the estimation. and it make this method can fit the spacial complex curve very well. and the asymptotic results of the estimation found the theoretic base for find the best variable bandwidth and drive the pratical best variable bandwidth from data directly

    本文所用的變窗寬局部線性回歸方法，繼承了局部線性回歸的優點，並且使用變窗寬提高了所得估計的可塑性。並使之能成功地處理空間非齊次曲線等復雜形狀的曲線擬合問題。所得估計的漸近結果為求漸近最優窗寬方案以及直接從數據估計最優變窗寬提供了理論基礎。
  11. With limited disturbances considered, sliding mode control is used to design the controller, which ensures the sliding mode to be exponentially converged and the sliding manifold to be reached in limited time from any initial states. and an adaptive law is designed for the unknown inertia matrix

    使用魯棒性較強的滑模控制方法設計了控制律：滑動模態是指數收斂的；在有界干擾力矩存在時，任意初始狀態都可以在有限的時間內收斂到滑動平面；對于轉動慣量未知的情形，設計了自適應律，趨近模態是漸近收斂的。
  12. Since in many situations the error term is not normally distributed, it is important to know the asymptotic properties ( large sample properties ), i. e., the properties of ols estimator and test statistics when the sample size grows without bound

    由於在很多情形下誤差項可能呈現非正態分佈，了解ols估計量和檢驗統計量的漸近性，即當樣本容量任意大時的特性就是重要的問題。
  13. 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，應用backstepping方法設計：首先把系統化成單入單出的嚴格反饋控制形式（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漸近穩定，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漸近穩定性。
  14. By resorting to the integral identity and the residue method, asymptotic estimations of the dirac operator eigenvalue are considered and eigenvalue ' s trace identities are obtained

    藉助於一個積分恆等式，採用留數方法，對dirac運算元的特徵值進行了估計，得到了在各種情形下的特徵值的漸近跡公式。
  15. Using an l2 energy method proves that the solutions of the general initial - boundary problem to this relaxation model converges time - asymptotically to a stationary wave or a rarefaction wave or superposition of these two kinds wave for small perturbation

    對此鬆弛模型，用l ~ 2 ?能量方法證明了在小擾動的情形下，相應的一般初邊值問題的解漸近收斂到一個穩定波或一個稀疏波或這兩種非線性波的疊加。
  16. Especially, when the isocline of x is monotone decreasing in 0 < x < 1, the svstem has no limit cycle and is globally stable ; next, we construct a saddle bifurcation at the boundary equilibrium and a degenerated bogdanov - takens bifurcation at the interior equilibrium by choosing appropriate parameter values in the following two sections, where our work are based on the theory of central manifolds and normal torms. we prove that is a codimention 3 focus - type equilibrium. system ( 6. 1 ) will have two limit cycles at some appropriate bifurcation parameter values, and have homoclinic or double - homoclinic orbits at some other appropriate bifurcation parameter values ; at last, we study the qualitative properties of the system at infinite in the poincare sphere

    因為系統在（ 0 ， 0 ）點處沒有定義，這給研究其在（ 0 ， 0 ）附近的動力學性質帶來了困難，我們應用文獻[ 17 ]中關于研究非線性方程奇點的系列理論和方法，圓滿解決了這一問題，給出了第一象限內當t +或t -時，在全參數狀態下系統的軌線趨于（ 0 ， 0 ）點的所有可能情況，其相圖也得以描繪；並且，系統不存在極限環的幾個充分條件我們也予以列出，當x的等傾線在0 x 1范圍內遞減時，系統不存在極限環，全局漸近穩定；然後，我們以中心流形定理和正規型方法為主要工具，巧妙選擇參數，分別構造了一個余維2的鞍點分岔和一個余維3退化bogdanov - takens分岔，證明了平衡點是余維3的焦點型平衡點，存在參數， m ，的值使得系統（ 6 . 1 ）有兩個極限環，還存在參數， m ，的另外值使得系統（ 6 . 1 ）有同宿軌或雙同宿軌。
  17. As analyzing the electromagnetic scattering characteristics of two - dimensional electrically large conducting objects, the object is divided into some small regions by using spatial decomposition technique ( sdt ), but still consider the coupling effect among all the regions, the surface current and rcs of the object can be computed with progressive iterative numerical method ( pnm ). then the wide - band electromagnetic scattering characteristics of two - dimensional electrically large conducting objects are analyzed with the asymptotic waveform evaluation ( awe ) technique

    文中應用空間分解技術（ sdt ）將二維電大導體目標在空間中分解為若干子區域，考慮子區域間的耦合，採用累進迭代方法（ pnm ）快速計算表面電流和雷達散射截面，然後與漸近波形估計技術（ awe ）結合分析了二維電大導體目標的寬帶電磁散射特性。
  18. Firstly, based on the geometric relationship of sar system, the low frequency, uwb and wide - angle electromagnetic scattering models of calibrators are achieved, using the moment method and the asymptotic waveform evaluation technique

    首先採用矩量法和漸近波形估計技術，結合sar幾何關系，獲得定標體的低頻，超寬帶和寬角度電磁散射模型。
  19. A switching function with a difference compensator is designed, which guarantees that the movement of the system is asymptotically stable in the quasi - switching manifold

    其次設計了帶有差分補償器的切換函數，使得系統在準切換流形上的運動漸近穩定。
  20. In this paper, we consider the global smooth solutions and long time be - haviors for some nonlinear evolution equations, such as kdv equation, bbm equation, gbbm equation, kdv - burgers equation, coupled generalized nonlin - ear wave equation. by using a priori estimates, the existence of global smooth solution, the existence of global attractors and its fractal dimensions for this sys - tems are obtained. this paper is organized in six chapters

    本文考察了kdv 、 bbm 、 gbbm 、 kdv - burgers 、廣義耦合的非線性波動方程組等非線性發展方程整體光滑解及其漸近行為，利用先驗估計，對一類廣義kdv方程組及耦合的波動方程組的周期初值問題、 cauchy問題、初邊值問題進行了討論，研究了整體吸引子的存在性及其分形維數有限性估計。
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