dependent equations 中文意思是什麼
dependent equations
解釋
相關方程組-
Then the characteristic and estimation approaches of two important time variant parameter ( tvp ) and state dependent parameter ( sdp ) models are presented and the efficiency of the dbm method is illustrated by three examples based on the analysis of duffing equations, lorenz equations and time - variant equation, in contrast with other methods
本文首先總結了dbm在常規黑箱辨識演算法中的基本框架和兩類重要模型?時變參數（ timevariantparameter ， tvp ）模型和狀態依存參數（ statedependentparameter ， sdp ）模型的特點及其估計演算法。 -
The unsaturated equations may be written with moisture content and potential as the dependent variables.
可以把含水量和勢作為應變量來寫非飽和方程。 -
With the temperature of sea area in situ, and the photoperiod during collecting samples, the two most important factors in inducing diapause, as the independent variable, whether the egg was in diapause ( or whether the female laid diapause eggs ) was regarded as the dependent variable, and the probabilistic equations of egg in diapause and female laying diapause eggs were established
以採集雌體時海區的現場溫度和日照時間這兩個影響滯育發生的最基本因素作為自變量，以卵滯育與否或雌體產滯育卵與否為因變量，建立了瘦尾胸刺水蚤卵滯育（或雌體產滯育卵）的概率預測模型。 -
From maxwell equations the refractive index equation and hamilton - jacobi equation, which describe the evolution of the electric field, are derived including the effects of the diffraction, the third - order intensity - dependent nonlinearity, plasma defocusing, the focusing and defocusing of the plasma channel, and the relativistic self - focusing
從maxwell方程出發我們得到了兩個包含衍射、三階強度非線性、等離子體散焦、等離子體隧道聚焦和散焦以及相對論自聚焦等效應在內的激光場演化方程，即折射率方程和哈密頓-雅可比方程。 -
The unknowns in the equations are the values of the dependent variables at the node.
方程中的未知數是結點上因變量的值。 -
Introducing the time - dependent damage variable into the constitutive equations of the crack zone, we modified the dugdale model of crack damage zone around crack - tip
對裂尖銀紋損傷區的dugdale模型進行了修正，將時間、位置、應變相關的損傷變量引入到銀紋區的本構方程中。 -
First, we reviewed the finite - difference time - domain yee ' s method. the difference equations, the stability condition, numerical dispersion characteristics, absorbing boundary conditions, incident wave source conditions and the calculation of the frequency - dependent scattering parameters are discussed
首先本文回顧了時域有限差分yee演算法，包括時域有限差分的差分方程、穩定性條件、數值色散特性、吸收邊界條件，激勵源的設置以及散射參數的計算等。 -
In the models, the time dependent parabolic equations, deduced from the mild slope equations with currents or not, are used as the governing equations. based on the general conditions for open and fixed natural boundaries with an arbitrary reflection coefficient and phase shift, the boundary conditions for the present models are treated. the alternative direction implicit method is used to solve the governing equations and the numerical schemes are unconditional stable
在建立模型時，將原始的橢圓型緩坡方程的近似型式? ?依賴時間變化的拋物型方程，作為控制方程；從將開邊界條件、不同反射特性的固壁邊界條件相統一的表達式出發，對邊界條件進行處理；用adi法數值求解控制方程，格式無條件穩定；節省了計算機內存和計算量。 -
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反應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漸近性態；研究時間變量是周期的反應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漸近性態 -
The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。 -
At last distribution functions of load modes in life service are presented. based on the resisting force model and load model, the limit state equations of rc bridge are formulated. according to the resisting force is time - dependent and vehicle load is the non - gaussian distribution, jc method is applied to calculate the time - dependent reliability index of rc bridge
在抗力衰減模型及橋梁荷載模型的基礎上，將可靠度理論引入橋梁結構的評定中，推導出了橋梁結構耐久性極限狀態方程，並根據耐久性極限狀態方程中抗力是時間的函數，以及車輛荷載為非正態分佈的特點，應用當量正態法（ jc法）編制相應的程序計算橋梁構件的時變可靠度指標。 -
In this paper, based on resisting force model and load model, the limit state equations of rc bridge are established, thus the time - dependent relationship of rc bridge reliability is analyzed
本文在抗力衰減模型及橋梁荷載模型的基礎上，通過建立耐久性極限狀態方程，分析計算橋梁可靠度隨時間的變化情況。 -
Hamilton ' s principle are used to obtain equations of motion, which are discretized using finite element method. the frequency dependent damping of viscoelastic layer is modeled using the golla - hughes - mctavish ( ghm ) method and the system is analyzed in the time domain. ghm increases the size of the original system by adding fictitious dissipation coordinates that account for the frequency dependent damping
本文採用ghm模型描述粘彈性阻尼材料的本構關系，根據哈密頓原理分別對附加主動約束阻尼層結構（ acld ）和主被動阻尼分離結構（ acupcld和acopcld ，其中acupcld結構是將壓電作動層貼于粘彈阻尼層的下面， acopcld結構是將被動約束層和壓電作動層分別貼于梁的上下表面）的梁結構建立了有限元模型，進而得到系統控制狀態方程。 -
Survey of basic electromagnetic phenomena : electrostatics, magnetostatics, electromagnetic properties of matter. time - dependent electromagnetic fields and maxwell ' s equations. electromagnetic waves, emission, absorption, and scattering of radiation. relativistic electrodynamics and mechanics
簡單介紹電磁學的基本現象：包含靜電學、靜磁學、物質的電磁特性。時變電磁場與馬克思威爾方程式、電磁波、電磁輻射特性（發射，吸收及散射） 。相對電動力學與動力學。 -
Based on an algorithm for solving the time - dependent coefficients nonlinear differential equations numerically, computer software is developed which has an easy - to - use interface. the dynamic response to elastic deformation and stress in key parts and forces acting on the bearings under various parameters and working conditions can be calculated
在研究求解該時變系數非線性微分方程組數值解法的基礎上，開發了具有良好人機界面的模擬軟體，可以計算出多種參數和工況條件下關鍵點的彈性位移、應力和運動副反力的變化規律。 -
Abstract : a numerical model for wave propagation in water of varying topography and current is proposed, and time - dependent wave mild - slope equation with a dissipation term and corresponding equivalent governing equations are presented. two different expressions of parabolic approximations for the case of the absence of current are also given and analyzed. examples of numerical simulation for wave transformation in large estuarine water areas are provided
文摘:提出了水深與流場緩變水域波浪傳播數學模型水流中依賴時間變量並考慮能耗的波浪「緩坡方程」及其等價的控制方程組，分析比較了無水流情況此理論模型與其相應的兩種拋物型近似的差別，提供了長江口波浪變形數值模擬計算工程實例.實例表明，該模型能適應河口三角洲大范圍水域波浪傳播數值計算 -
In this thesis, a semi - classical model of the force on an atom is used to describe the motion of a two - level atom interacting with a standing wave laser field. the velocity dependent force and momentum diffusion are derived through optical bloch equations by using the matrix form of the continued fraction technique. by investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom
本文利用半經典理論，從二能級原子在激光駐波場中所滿足的運動方程出發，推導出密度矩陣元所滿足的遞推關系，利用矩陣連分數方法求解出密度矩陣元，從而求出依賴于原子運動速度的光壓力與動量擴散系數，通過討論原子在激光場中的動力學行為，為原子在激光場中被囚禁、形成原子列陣以及可控制的量子態，從而為量子信息處理提供理論基礎。 -
The intracavity photon density and initial population inversion density are assumed to be gaussian distributions instead of plan wave assumption, based on this assumption, the rate equations of diode - pumped intracavity - frequency - doubled passively q - switched laser are modified. through solving these space - dependent rate equations numerically, the results under different assumption are compared. 5
將腔內光子密度和初始反轉粒子數的平面波近似修正為高斯分佈近似，獨立地導出描述二極體泵浦內腔倍頻-被動調q激光器的速率方程，並通過數值求解該方程比較了兩種近似下脈沖特性的不同； 5 .實驗驗證了2中提出的實驗方案，並對實驗結果進行了分析。 -
The tree of this paper is as follows : in chapter 2, we study the uniformly asymptotic stability of the trivial solutions of a class of linear and nonlinear difference - differential equations with finite time - dependent delays. then, we deal with the existence, the uniqueness and the stability of periodic solutions and almost periodic solutions when the systems are under periodic perturbations and almost periodic perturbations
本文內容具體安排如下：第二章，我們首先研究一類具有限變時滯的線性及非線性差分微分方程系統的零解的一致漸近穩定性，然後討論在周期擾動和概周期擾動下，相應系統的周期解和概周期解的存在唯一性及穩定性。 -
The contravariant velocity fluxes are used as the dependent variables in the paper. the discretization equations were sieved using the simple, simplec and simpler algorithms
選取曲線坐標系下逆變速度通量分量為獨立變量，由水位校正法求解水位流速耦合問題。
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