exact solution 中文意思是什麼

exact solution 解釋
精確解
  • exact : adj. 1. 精密的,準確的。2. 嚴格的,嚴正的;嚴厲的。3. 嚴密的。vt. 1. 勒索(錢財等),強要。2. 強制,逼使(服從等)。3. 急需,需要。
  • solution : n. 1. 溶解;溶液,溶體,溶劑。2. (補輪胎用的)橡膠水;〈美國〉藥水。3. 解決,解答 (of; for; to); 解釋;(數學等的)解法,解式。4. 免除,解除。5. 【醫學】消散,消退。
  1. In this paper, we give a brief introduction to the helfrich elastic theory. to solve the helfrich equation under the physical conditions of vesicles, a taylor series method is introduced, which offers a unified method to reproduce the exact solution including the famous axisymmetrical constant - curvature surfaces and the biconcave shape solution

    本文在簡要介紹了helfrich的彈性理論及膜方程的基礎上,開創性地引入taylor級數法,在軸對稱膜的邊界條件下,對helfrich膜方程以taylor級數法求解,統一地得到了目前已知的兩個特解:常平均曲率曲面和紅血球形狀解。
  2. In this thesis, by adopting a semiclassical model, we get an exact solution to the potential distribution in a one - dimensional finite uniform array of mesoscopic tunnel junctions. we discuss the features of two kinds of charge solitons in the array

    我們採用半經典模型精確求解了一維有限長均勻介觀結鏈中的電勢分佈,討論了兩種電荷孤子的特徵。
  3. Exact solution of eigenvalue and eigenvector derivatives and its application in structural dynamics

    結構動力學中具有重特徵值的靈敏度分析
  4. So a conclusion can be got that the annealing in n2 raises the la2o2, stability. 3. the exact solution and wkb approximation are compared, the exact solution agrees with the wkb approximation in calculating the mono - layer sio2 tunneling current, but the wkb approximation is inappropriate for the dual layer oxide - lanthanum structure, while the exact algorithm can give a exact result

    比較了wkb和精確解法計算柵介質隧穿電流的方法,精確解法在解決單sio _ 2層和wkb準經典近似有相同的結果,但是wkb不適合計算la _ 2o _ 3 / sio _ 2雙層柵介層的隧穿電流,而精確解法能精確地計算雙層柵介質隧穿電流。
  5. The application of sa and heuristic algorithm in packing problem is studied deeply. an improved sa, which utilizes heuristic approach in search tragedy and movement tragedy, is introduced and manifested to enhance the rate of convergence with an extent of exact solution

    對sa演算法和啟發式演算法在布局問題中的應用進行了研究,為提高收斂速度同時保證一定精確度,對sa演算法進行了改進,在演算法的搜索策略和變動策略中應用了啟發式方法,縮小布局狀態空間的搜索。
  6. In section 2. 2, by a priori estimates and fourier spectral method, we prove the existence and uniqueness of the global smooth solution for the periodic initial value problem and obtain the large time error estimate between spectral approximate solution and the exact solution. in sections 2. 3 and 2. 4, by a priori estimates and galerkin method, we prove the existence of the global smooth solution and global attrac - tors for the initial - boundary value problem. chapter 3, consider the initial - boundary value problem of the multidimen - sional non - homogeneous gbbm equations

    第二章,考慮一類一維非齊次bbm方程,在第二節中利用fourier譜方法和先驗估計證明了具有周期初值問題的整體光滑解的存在性和唯一性,給出了fourier譜近似解和精確解的長時間誤差估計;在第三、四節中討論了初邊值問題,利用與時間t無關的一致先驗估計,證明了整體光滑解和整體吸引子的存在性。
  7. For obtaining exact solution for the impulse response or step response, the preferred method is to solve the original differential equation on a digital or analog computer.

    要獲得脈沖反應或階躍反應的精確解,最好的辦法是用數字或模擬計算機求解原始微分方程。
  8. Exact solution of non - classical damping systems

    非經典阻尼系統的精確解
  9. In section 4, by making use of the fourier transformation for spatial variables and starting from the nonparaxial propagating equation of ultrashort pulsed beam in temporal frequency domain, the nonparaxial solution basing on the paraxial propagating solution was derived, which come to exact solution by iterative of the paraxial integral solution

    在第四節里,通過採用空間變量的傅立葉變換和利用時間頻率域下的非傍軸傳輸方程,我們得出了超短脈沖光束傳輸的非傍軸的修正方法。
  10. The exact solution of the einstein field equation is gained under the popular conditions when , the new general expression of the density function is deduced. , the new solution of the cosmic scale factor is further derived out under different evolution model

    求解了當時一般情況下標準宇宙模型方程,通過一般地求解不同密度物質情況下的暴漲宇宙演化方程,得到了的一般物質密度的表達式,解出了表徵宇宙標度因子不同演化的一般新解,並通過對不同情況下標準宇宙方程的求解,證明參數的正負取值直接影響宇宙尺度因子的表達形式。
  11. Based on the exact solution of the static nonlinear bending problem which is given in reference [ 2 ], the characteristic relation between the natural frequency and the static load is gained by means of the modified iteration method

    靜平衡問題採用文獻[ 2 ]給出的精確解,在此基礎上用修正迭代法求解,得到了其固有頻率載荷特徵關系。
  12. Ga is less prone to converge to a local optimum even when the initial guess is far away from the exact solution. in recent years, a growing number of researchers in the ga community turn to the study of real - coded genetic algorithm ( rga ) for its simplicity and efficiency, and the reason that a chromosome can be directly represented by real number

    然後引入全局優化的搜索方法?遺傳演算法,由於實數遺傳演算法直接用實數表示遺傳個體,而微波成像演算法就是要得出目標的形狀函數,形狀函數的系數既為待求的變量,具有連續搜索空間,因此本文直接採用實數遺傳演算法。
  13. In chapter two, we consider the finite volume element methods for nonlinear parabolic problems optimal order error estimates in the h1, l2norms and w1, almost optimal error estimates in l are demonstrated. moreover superconvergence in the error between the approximate solution and the generalized elliptic projection of the exact solution is also shown

    第二章考慮非線性拋物方程的初值問題的體積有限元法,並證明了h ~ 1 , l _ 2和w ~ ( 1 , )誤差估計以及l _最優誤差估計,而且還得到了近似解和真解的廣義橢圓投影間的超收斂估計。
  14. Some new regular estimations for the exact solution are obtained

    首先給出關于真解的一些新的正則性估計。
  15. By detailed theoretical analyses, optimal order in h ^ 1 - error estimates is obtained between the exact solution of original problem and the solution of these fully discrete schemes

    給出了全離散特徵有限體積元格式,並通過詳細的理論分析,得到了近似解與原問題真解的最優h ^ 1模誤差估計。
  16. Abstract : through improving the procedure of electric image method, an exact solution in analytical form has been found for the system of two charged spherical conductors

    文摘:改進了雙球系統的電象法處理方法,得到了解析形式的精確解。
  17. Applied the precise integration method to solve stiff equations and nonlinear equations, and improved the method from explicit and implicit aspects. it found that the exact solution of some differential equations may be obtained, and always stable absolutely

    將之應用於剛性方程及非線性方程的求解中,並對非線性方程的求解從顯式和隱式兩個方面給出了改進措施,得出:使用精細積分法可以給出某些微分方程的精確解,且絕對穩定。
  18. With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained

    運用lie群變換方法討論了一維大應變非線性固結方程的對稱性,以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性,並就大應變非線性固結問題的多種情況求得了其完整的或者近似的解析解答,具體包括:基於有效應力與孔隙比以及滲透系數與孔隙比之間的關系的一些假定,採用李群變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程,得到了一個不考慮自重固結的完全解析解。
  19. Exact solution for field variables of functionally graded magneto - electro - elastic laminated plate using state space method

    用狀態空間法求功能梯度電磁彈性多層板的場變量
  20. The second part, with the aid of many types constructive transformation and symbolic computation ( especially wu algebraic elemination method ), some topics in nonlinear evolution equation are studied, including exact solution ( solitary solution, periodic solution, rational function solutions and jacobian function solution ), backlund transformation, cole - hopf transformation, dromion solution and its construction etc. charter 2 introduces ac = bd model and its application about partial differential equations

    第二部分以構造性的變換及符號計算特別是(吳代數消元法)為工具,來研究非線性演化方程中的一些問題:精確解(如孤子解、周期解、有理解和雅可比橢圓函數解(雙周期解)等) 、 backlund變換、 hopf變換, dromion解及衰變結構等第二章介紹了求解pdes的ac = bd模式及其在偏微分方程中的作用。
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