扰动理论,perturbation theory
1)perturbation theory扰动理论
1.In this paper, a perturbation theory for the α β generalized inverse A (-1) αβ is developed.该文讨论了α β广义逆的扰动理论
2.A perturbation theory for the generalized inverse A (2) T,S is developed.建立了广义逆A(2 )T ,S的扰动理论
3.The traveltime in anisotropic media is calculated, in the present study, based on the first order perturbation theory.根据各向异性介质的扰动理论来计算走时。
英文短句/例句

1.small-perturbation theory of aerodynamics空气动力学小扰动理论
2.FEM of Solving the Problems of Elasto-Plastic Disturbance Based on TDD二元扰动理论求解弹塑性扰动问题的有限元法
3.Small-perturbation Theory. Orr-Sommerfeld Equation.20小扰动理论。奥-索末非方程。
4.A study of uniqueness of steady state of high degrees nonlinear nonautonomous circuits with hysteresis loop elements by structure turbluence theory;利用强结构扰动理论确定高维滞环多值电路唯一稳态
5.On Study of the Hydrodynamic Interactions between Two Underwater Moving Bodies;水下双体运动流体动力干扰理论研究
6.Morphology analysis and theoretical study of global ionospheric disturbances during magnetic storm times磁暴期间全球电离层扰动形态分析和理论研究
7.Theoretical and Experimental Study on Effects of Disturbance to Rock Creep and Damage Characteristics;岩石蠕变扰动效应与损伤特征理论与试验研究
8.Risk Theory with Variable Premium Rate under Interest Force;利率环境下带扰动变保费率模型的风险理论
9.Theoretical analysis of disturbance of soils caused by penetration of soil samplers取土器贯入土体引起土体扰动的理论分析
10.Analysis and Discussion on the Electromagnetic Interference in Shisanling Seismic Station十三陵地震中心台电磁扰动数据分析处理讨论
11.Theoretical Research about the Formation,Migration and Disturbance of "Movement Skill" in Sports;关于体育运动中“运动技能”的形成、迁移与干扰的理论研究
12.Control theory is used for dealing with the dynamic response of a system to commands, regulations, or disturbances.控制理论用于处理系统对命令、调节或者干扰的动态响应。
13.Perhaps they are sensitive to the same electrical and magnetic disturbances which form the basis of Dilatancy Theory.也许它们对构成膨胀理论基础的电磁扰动也同样敏感。
14.The Theoretical and Methodical Research on Surface Settlement and Pipeline Deformation Due to Construction Disturbance in Metro Tunnel Construction;地铁隧道施工扰动对地表沉降和管线变形影响的理论和方法研究
15.Theory, Methodology and Case Study of Artificial Rebuilding of Mining Engineering Disturbed Soil;矿山工程扰动土人工再造的理论、方法与实证研究
16.Research on Anti Interference's Theories and Methods of Test System Driven by the Mode of Servo and Frequency Conversion伺服及变频驱动环境下测试系统抗干扰理论和方法研究
17.Hybrid Low-Order Harmonics and Linear Perturbation Expansion Method for Fast Loading Pattern Evaluation-Theory用于换料方案快速评价的低阶谐波结合线性扰动展开法——理论模型
18.The Application of Input-output System Theory in the Estimation of Gravity Field输入—输出系统理论在重力场扰动场元推估中的应用分析
相关短句/例句

theory of small disturbance小扰动理论
1.Energy-loss analysis of power plant units based on theory of small disturbance;基于小扰动理论的火电厂机组耗差分析
2.By means of the state space method,the theory of small disturbance is introduced to the analysis of thermo dynamic system of a power plant.依状态空间法将小扰动理论引入热力系统分析中,借助于矩阵性能计算模型,提出了一种新的耗差分析方法。
3)strong fluctuation theory强扰动理论
1.The calculation formulas of single oriented iron fiber absorbing materials equivalent EM parameters are derived on the basis of strong fluctuation theory and the single iron fibers EM parameters.依据强扰动理论,考虑了单根纤维在粘结剂中的微波电磁参数,导出了单一定向铁纤维涂料等效电磁参数的计算公式。
2.With the anisotropic property structure of the mixed media,based on the strong fluctuation theory,a set of complex integral equations for EM parameters are formulated.考虑到结构的各向异性,利用强扰动理论推导出了求解电磁参数的复数型积分方程组,用Fortran5。
4)perturbation theory扰动理论;微扰理论
5)linear perturbation theory小扰动法;线性扰动理论
6)the little agitation theory小扰动波理论
1.The integration of the agitation equation in the sphere coordinate is carried out based on the little agitation theory and the general solution of UVCES was obtained.其中求解建立在小扰动波理论基础上 ,即从理想可压缩流体介质的基本运动规律出发 ,导出弱扰动情况下的波动方程并对球形坐标系下的波动方程进行积分求解 ,得到了具有普适意义的UVCES定性解。
延伸阅读

扰动理论扰动理论pertutfaation theory 范数相对为小),另一些则可以看作是快的(fast)(即导数范数相对大).这种系统的广为人知的例子有描述电路或化学反应的常微分方程;例如,在后一种情况下,时间尺度可以直接与所涉及的反应速率相关.这些问题通常可以建模为一个多层系统,而时间尺度之比则用(小)参数来表示.这种系统的形状是 dX 山雌Ll,“,,’‘’,“·)万丁=jL‘,x),这里rl~R”,忍CR,。2,…,。。是小的正常数.这类微分方程的一个例子是标量常微分方程 砂x”于,、韶x “言户十,鱿aj(‘,x)翁一o·相当一般的情况是考虑二层系统 dx 毛于“f(x,y,t), dt £平一。(*,,,:)、 dt对这个常微分方程组应该给出两个初值(或边值)条件.特别有趣的是当。洛0时解(x,y)的性态.为避免混淆,为表示此解依赖于。,对解加上标£.令£二O,将得到所谓简化方程(耐uced闪Uation).如果(刁g/刁夕)(尸,y〔,,t)在相关的区域上非奇异,则可以形式地解出尹而得到只含x0的一阶常微分方程.很清楚,这时只需要一个初值(或边值)条件,所以一般说来,降阶问题的解不会满足另一个初值或边值条件.于是,这就可以解释奇异扰动(51爬刘ar详durhation)一词,因为(x‘,夕‘)到(xo,夕o)的收敛决非一致的,见〔AS].然而,给出了降阶解以后,可以设法找一个快解成分,从已给的初值或边值数据移动到一个“接近”于(尸,y“)的积分曲线,这样把(厂,丫)与(x“,J;0)连接起来.这件事常称为“边界层效应’(bou以纽即刁a界r effect),它在那个初值点或边值点的。邻域(至少是与。相关的区域中)很引人注意.使用上述的关于降低解的做法有一些解析技巧.这里,降阶解(称为外解(outersolution))在层内修正为一瞬态解(让出犯记以solution)(称为内解(in沉r solutio幻)),其方法是在层内与层外作幂级数展开.为了使这些成分逼近于所要求的解,就需要将它们匹配起来.所以这个技术就称为匹配渐近展开(mat-cl〕已as扣IPtotic expansions). 层或瞬态不只可能产生于边界处,也可能产生于区域内部.这是气体动力学中众所周知的现象,这里激波时常可以描述为这种问题的内部的层(见激波的数学理论(sh民k~月拙the叮以tical thi”卿of).举一个例,考虑粘性B切电e巧方程 £y”一yy’一凡夕二O,又〔R扰动理论【.姆由川脑腼血妈r;助3M灿e。