混合邊條件 的英文怎麼說

中文拼音 [húnbiāntiáojiàn]
混合邊條件 英文
mixed side condition
  • : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 邊Ⅰ名詞1 (幾何圖形上夾成角的直線或圍成多邊形的線段) side; section 2 (邊緣) edge; margin; oute...
  • : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
  • : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
  • 混合 : (攙雜在一起) mix; blend; mingle; admix; mixture; mix up; interfusion; commixture; blending; cre...
  • 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
  1. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉層模式,根據參數化方法對波浪破碎導致的能量耗散率進行了估計,通過改變湍動能方程的上引入波浪破碎對湍動能生成的影響,計算了不同風應力強迫下的層流場結構和湍能量收支(下述給出的結果是取風速為20m s得到的) 。
  2. Both initial and boundary-value problems, including displacement, traction and mixed boundary conditions are solved.

    解決了初始和值問題,包括位移的、曳力的和
  3. The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes

    本文就是在此背景下,利用金屬波導和單軸晶體的一些特性,結麥克斯韋方程組和波導的,從三種不同的情況研究了光在對稱平面單軸晶體金屬波導(波導層是單軸晶體,兩個波導界面均為金屬)內的傳輸特性,其主要貢獻為,首次解析地得到了這種波導結構下模式場的精確解,並發現了一些有用的特性: ( 1 )模式場的性質因單軸晶體的性質不同而異; ( 2 )當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時,波導中傳輸te波和tm波,只不過其主模因單軸晶體的性質不同而異,當波導層介質為負單軸晶體時,波導主模是te波主模,而波導層介質為正單軸晶體時波導主模是tm波主模。 ( 3 )當單軸晶體光軸位於波導面內時,對于正單軸晶體,波導的主模是橫電波te _ 0模,任何頻率的光波均可激勵該模式;當光波波長滿足一定時,波導內傳輸單模,否則,將激勵起高階模式,高階模即匪te波,也匪tm波,而是兩者耦而成的模。
  4. Study on the characteristic of piezoceramic actuator is an important step in the studying of undamaged - inspection process based on piezoceramic actuator technology. this thesis firstly dwells on the sample model of piezoceramic actuator under the restriction of concrete. through theory and experimentation analysis, we arrives at a conclusion that the vibration behavior of piezoceramic actuator belongs to that of the thin plate

    本文著重研究了在凝土約束下壓電陶瓷片的樣本模型,在此基礎上通過理論探討和實驗現象分析,認為埋置於凝土中的壓電陶瓷片是符彈性力學中克希霍夫有關薄板理論的假設,是屬于薄板振動問題,並確定了其界約束
  5. Aiming at a parallel hybrid electric vehicle ( hev ), a design method of degree of hybridization ( doh ), mainly about the constraint, side value condition and compute method of doh was introduced

    摘要提出了並聯型動力汽車的度設計方法,重點討論度設計的約束及其計算方法。
  6. From mathematical models for inverse scattering in two dimensional inho - mogenous media including variable impedance, all kinds of probable mixed variable impedance boundaries and cracks, from interior and exterior trans - mission problems and radiation condition, ill - posed integral equation and indicator function method are formulated for the diverse of boundary iden - tification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solving it by virtual of regularity method, meanwhile, some numerical tests are given. 3

    在二維非均勻介質逆散射界識別的數學模型(包括一般的非均勻介質,正交各向異性介質,變阻抗介質,各種可能的變阻抗界問題)下,由內透射問題和外透射問題以及輻射,推導了上述介質的界識別的積分方程和指示函數方法,由於積分方程的核充分表徵了散射物的界,由此說明只要利用正則化方法求解該積分方程,就可以確定散射物的界。
  7. This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes

    本文採用edge - basedfem為基本方法,結物理光學法( po ) 、物理繞射理論( ptd ) 、界積分方程( bi ) 、區域分解技術( ddm )和完全匹配層( pml )吸收等求解方法構成的方法,對電磁散射和輻射問題進行了研究,主要包括以下內容:提出了一種edge - basedfem與物理光學方法和物理繞射理論相結方法? fem po - ptd方法,並將該方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。
  8. The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one

    在前人研究的基礎上,本文基於陳龍珠等曾提出的一組實用飽和土波動方程,用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉振動問題,主要工作有:對于飽和地基上剛性圓板的扭轉振動,作者首先採用hankel變換求解了動力控制方程,得到了該控制方程在hankel變換域內的通解,然後由建立了飽和地基上剛性基礎扭轉振動時的對偶積分方程,並將其化為易於數值求解的第二類fredholm積分方程,用數值方法計算了基礎的動柔度和扭轉角幅值與振動頻率的關系曲線,並將其與單相彈性介質情況進行了對比分析。
  9. As the applications of mixed monotone operators theory, some classes of equations are considered. some initial value problems and boundary value problems for mixed monotone nonlinear impulsive integro - differential equations and nonlinear elliptic equations are discussed. some known results are generalized under weak conditions. and initial value problems and periodic boundary value problems for mixed monotone nonlinear impulsive evolution equations are discussed by mixed monotone operators theory with considering the main properties of operator semigroup. the sufficient and necessary conditions for existence and uniqueness of their solution and coupled solution are obtained

    作為單調運算元理論的應用,本章討論了非線性單調脈沖積微分方程和單調非線性橢圓方程方面的一些問題,不同程度地削弱了原有的,推廣了已知的結果;還利用錐理論並結運算元半群的性質及其主要特徵討論了非線性脈沖發展方程初值問題、周期值問題,給出了單調非線性脈沖發展方程的耦周期解以及存在唯一解的充要
  10. By introducing dual variables, the dual governing equations and boundary conditions, which are composed by mixed variables under whole state space, are obtained

    引入對偶變量,進一步建立使問題化為在以變量組成的全狀態辛空間中的控制正則方程和初
  11. The fundamental solution of the mixed problem with the third kind homogeneous boundary condition and that with the zero initial condition are given respectively

    分別給出具有第三類齊次問題基本解以及具有零初始問題基本解。
  12. The semiboundless mixed problem of the fractional diffusion equation with the third kind nonhomogeneous boundary condition is studied

    摘要研究了一維半無界分數階擴散方程具有第三類非齊次問題。
  13. In this paper, laplace transform is applied to solve a solution of mixed question which satisfies the second boundry condition of the wave equation

    摘要本文應用拉普拉斯變換,求出了一個波動方程第二問題的解。
  14. Mixed boundary condition

  15. We have solve the problems which have dirichlet bc, neuman bc and mixed bc

    本文中求解了第一類界和第二類下以及值問題。
  16. In this paper, we discuss how to solve the 1st, 2ed and composite boundary problem, add external wavelet to reduce the error

    本文分別對一類、二類和的處理進行了討論,並利用在界附近加入外小波的辦法有效地提高了近似解的精度。
  17. On three - dimensional numerical solution of incompressible viscous flow by osfem abstract an algorithm for solution of three - dimensional navier - stokes equations for incompressible viscous flow is developed. a decoupled algorithm based on the operator - splitting technique is applied

    由於三維粘性流動的復雜性,例如流動界的選取、控制的給定以及運算元方程高精度數值解法等,都值得探討和研究。
  18. Then the solving procedures of these bies by the rwg functions based moment method are elaborated, and the method of modeling complex objects built of arbitrary line, surface and volume structures is developed. in order to solve realize antenna and circuit problems, methods of adding excitations and concentrated loadings with moment method are deceloped, and matrix pencil ( mp ) method is used to deembeded the s prameters of antennas and circuits from the computed current distribution. some numerical results of practical complex antenna and scattering problems are presented to illustrate the veracity and effectiveness of the method

    在第一部分中,首先從電磁場的基本理論出發,基於等效原理和以統一的方法建立了用於分析金屬、介質及金屬與介質結構的界積分方程,並歸納和比較了各類積分的適用范圍和優缺點;在此基礎上,給出了使用基於rwg函數的矩量法求解各種界積分方程的一般過程;研究了具有任意線、面、體組成的復雜結構的電磁建模方法,並給出了各種多面連接情況下基函數和未知量的選取方法;研究了使用矩量法分析電路、天線問題時集總元和激勵源的處理方法,並基於矩陣束方法( matrixpencilmethod )提取了電路和天線問題的s參數;最後通過分析一些工程中的復雜金屬天線問題和具有「金屬與介質結構」的散射和天線問題驗證了方法的準確性和高效性。
  19. In chapter two, we consider the expanded mixed finite element method for the 2nd order parabolic problems this method expands the standard mixed formulation in the sense that three variable are explixitly treated : the scalar unknwon, its gradient and its flux. based on this fomulation

    該方法是在傳統元基礎上的一種推廣,它能同時逼近未知函數、未知函數的梯度和流體的流量,較好的模擬了帶有的二階拋物問題。
  20. In this paper, we consider mixed finit element methods for the initial - boundary value problems of two order hyperbolic equations and linear integro - differential equations of parabolic type, obtain the error estimates of the discrete schemes for this two kinds of problems. in chapter one, we consider the expanded mixed finite element methods for the followling 2nd order hyperbolic problems this method expands the standard mixed formulation in the sense that three variable are explixitly treated : the scalar unknwon, its gradient and its flux

    本文討論了二階雙曲方程和線性拋物型積分微分方程方程初值問題的有限元方法,得到了這兩類問題有限元離散格式的誤差估計。第一章討論二階雙曲初值問題的擴展元方法。該方法能同時逼近未知函數、未知函數的梯度和流體的流量,較好的模擬了帶有的二階雙曲問題。
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