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a high order     
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  一个高阶
     By using fitting method a high order model G( S) = K0/( 75 + 1) n can be simplified into determined model Gτ (S) = K0e-τs/(TS + 1) or undetermined model Gτ(S) = K0e-(τ±Δx)s/[(T±ΔT)S+1] under operating status and boundary conditions.
     一个高阶模型G(S)=K_0/(TS+1)~n可以在运行状态及边界条件下通过拟合,简化成确定性模型C_τ(S)=(?) 或不确定性模型(?)
短句来源
     A high order algorithm of the viscous/inviscid coupled equations in complex geometries is analyzed through domain decomposition based on the spectral element method.
     分析粘性 /非粘性耦合问题的一个谱元法 . 通过基于谱元法的区域分解技巧 ,构造并分析了复杂区域中粘性 /非粘性耦合问题的一个高阶算法 .
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     Cross beam experiment system (CBES) as a high order nonlinear control system has very high application value in the engineering.
     十字梁实验系统作为一个高阶非线性控制系统,在工程上有很高的应用价值。
短句来源
     The reliable channel estimation is the key problem to transfer in high rate. After analyzing the OFDM signal structure and the effect of CP involved in channel convolution,a high order cyclic Toeplitz matrix is constructed,and DFT step is used instead of matrix inversion computation.
     OFDM系统的可靠信道估计是实现数据高速率传输的关键,针对OFDM信号结构的特点,通过直接分析循环前缀在信道卷积中的作用,利用循环前缀信号构造出一个高阶的循环Toeplitz矩阵,使用DFT运算代替矩阵求逆,大大降低计算复杂度,能快速、可靠的进行信道估计.
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     A high order subalgebra of loop algebra _1 is constructed. It follows that a new Lax pair is established.
     构造了loop代数A1的一个高阶子代数,设计了一个新的Lax对.
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  高阶
     By using fitting method a high order model G( S) = K0/( 75 + 1) n can be simplified into determined model Gτ (S) = K0e-τs/(TS + 1) or undetermined model Gτ(S) = K0e-(τ±Δx)s/[(T±ΔT)S+1] under operating status and boundary conditions.
     一个高阶模型G(S)=K_0/(TS+1)~n可以在运行状态及边界条件下通过拟合,简化成确定性模型C_τ(S)=(?) 或不确定性模型(?)
短句来源
     Design of a High Order Filter Based on Novel Tunable High Linearity OTA
     基于新型可调谐高线性OTA的高阶滤波器设计
短句来源
     A high order all digital phase locked loop with tandem structure is presented.
     本文给出了一种高阶全数字锁相环的级联结构形式,它通过结构简单的全数字一阶环的级联来实现高阶环路。
短句来源
     In the paper the uniformly valid estimate of the solution of two-point boundary value problem for the differ-ential eguation with a high order turning pointεy~″+ f(t ,ε)y~' + g(x,ε)y=0is given under the condition 9(0,0)<0.
     本文对具有高阶转向点的方程εy″+f(x,ε)y′+g(x,ε)y=0的两点边值问题,在g(0,0)<0的条件下给出解的一致有效估计。
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     A HIGH ORDER FINITE ELEMENT BOUNDARY INTEGRAL EQUATION METHOD
     高阶有限单元边界积分方法
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  一种高阶
     A high order all digital phase locked loop with tandem structure is presented.
     本文给出了一种高阶全数字锁相环的级联结构形式,它通过结构简单的全数字一阶环的级联来实现高阶环路。
短句来源
     By adopting a diminution order method with a filter,a hybrid model reference adaptive control scheme has been designed for a high order system following a low order model.
     采用滤波器降价的方法 ,设计了一种高阶系统跟踪低阶参考模型的混合模型参考自适应控制 (HMRAC)方案。
短句来源
     A Method for Analysing a High Order Nonlinear System with CAD
     一种高阶非线性系统的机助分析方法
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     A High Order Theory of Composite Laminated Plates
     复合材料层合板的一种高阶理论
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     A high order finite difference forward modelling method was proposed to improve its efficiency.
     为了提高其效率 ,提出了一种高阶差分正演模拟方法。
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  高次
     POSITIVE PERIODIC SOLUTIONS OF A HIGH ORDER DIFFERENTIAL EQUATION WITH MULTI-DELAYS
     混合型高次时滞方程的周期正解
短句来源
     FINITE ELEMENT METHODS WITH A HIGH ORDER FOR SOLVING CONSERVATION LAWS
     求解双曲守恒律方程的高次有限元方法
短句来源
     A class of numerical schemes are presented for solving conservation laws which are obtained by applying Galerkin finite element with a high order to Hamilton Jacobi equations.
     将Galerkin高次有限元应用于双曲守恒律的Hamilton Jacobi方程 ,得到了求解双曲守恒律的一类数值格式。
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     A HIGH ORDER CURVE FITTING FOR ISOLIFE CURVES
     等寿命曲线的一种高次拟合法
短句来源
     To improve the imaging quality of the lens used in helmet-mounted low-level-light(LLL) night vision system and make the lens light in weight,small in size,compact in structure,a high order aspheric lens is designed.
     为提高头盔式单目微光夜视仪中光学系统的成像质量,并满足夜视仪结构紧凑、质量小的指标要求,提出在微光夜视仪光学系统设计中引入高次项非球面透镜的设计方法。
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  a high order
Investigation of the efficiency of using numerical schemes of a high order of accuracy for solving Navier-Stokes and Reynolds eq
      
In problems concerning laminar flow around a cylinder and turbulent flow about a flat plate, solutions with a high order of accuracy are presented.
      
It is shown that with strict observance of predetermined factors, the inter-laboratory reproducibility is of a high order.
      
However, its application is impeded because it is necessary for the surgeons performing such surgery to possess surgical skills of a high order.
      
Full wave analysis of RF signal attenuation in a lossy rough surface cave using a high order time domain vector finite element m
      
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Suppose that, through conformal mappingthe outside of the vertical section of the infinitely loag conducting cylinder is transformed into the outside of the unity-cycle on ζ1-plane. In terms of the two-dimensional formula of Helmholtz, we find that, when the plane electromagnetic wave with wavelength much greater than the section of the cylinder incides in the direction perpendicular to the axis of the cylinder,(1) If E1 is parallel to the axis, E1=exp[jk(y cos α-x sin α)], the far field of diffraction is(2)If...

Suppose that, through conformal mappingthe outside of the vertical section of the infinitely loag conducting cylinder is transformed into the outside of the unity-cycle on ζ1-plane. In terms of the two-dimensional formula of Helmholtz, we find that, when the plane electromagnetic wave with wavelength much greater than the section of the cylinder incides in the direction perpendicular to the axis of the cylinder,(1) If E1 is parallel to the axis, E1=exp[jk(y cos α-x sin α)], the far field of diffraction is(2)If H1 is parallel to the axis, H1=exp[jk(y cos α-x sin α) ] , the far field of diffraction iswhere The vector p=ixpx + iypy corresponding to p=px+jpy is the equivalent electric moment of the conducting cylinder induced by the electric field of the incident wave.In the case of the elliptic cylinder with the longer and shorter radii a and b respectively,a = b corresponds to the case of the circular cylinder; b = 0, to the case of thin slip. In terms of Babinet's principle, We have the case for infinetely long slit on the plane. For the above two cases, there are exact solutions, which are only a higher order infinitesimal at variance with the results of this paper when ka(?)0.

设通过保角变换: ζ=x+jy=Aζ_1+A_1ζ_1~(-1)+A_2ζ_2~(-2)+……使无限长导体柱的正截面外部变成ζ_1平面上的单位园外部。由二维的Helmholtz公式出发,求得当波长远较柱截面尺寸为大的平面电磁波以垂直于柱轴的方向投射时: (1)E_1平行于柱轴,E_1=exp[jb(ycosα-xsinα)],则远区衍射场 (2)H_1平行于柱轴,H_1=exp[jk(ycosα-xsina)],则远区衍射场 其中:S=截面积, u=cosθ+jsinθ=(x+jy/γ), p=2π(∈μ)(1/2)A(e~(jα)A_1-e~(jα)A),p=P_α+jP_y所相应的矢量P=i_xP_x+i_yP_y就是导体柱在入射波的电场下所感应的等效电矩。 在椭柱(长短半径各为a,b)的情形中: A=(a+b)/2,A_1=(a-b)/2,S=πaba=b就是圆柱的情形;b=0就是薄片的情形,利用Babinet原理,可推得平面上无限长开槽的情形——此二情形都已有准确解,与本文结果相比较,当ka→0时,只差高阶无限小。

This article presents methods for establishing the state equations of linear time-invariant, linear time-varying and nonlinear circuits. The relationships between the state equations and a high-order differential equation or a transfer function are investigated. Various means for the evaluation of the slate transition matrix are discussed, along with the analytical solutions of state equations.

本文论述线性时不变,线性时变及非线性电路状态方程的建立,状态方程与高阶微分方程及网络函数的关系,状态渡越矩阵及状态方程的解析法求解。

The temperature profile and thermal-focusing effect induced by a high-order transverse mode laser beam in an internal element have been analyzed. We calculate the input-output power relationship for ordinary and extraordinary waves in a LiNbO3 crystal inside the resonator. Our calculations are in good agreement with the experimental results of P. G. Konvisar et, al., and, further, revise their calculated result for extraordinary waves. The internal thermo-optic hysteresis and focusing effect are...

The temperature profile and thermal-focusing effect induced by a high-order transverse mode laser beam in an internal element have been analyzed. We calculate the input-output power relationship for ordinary and extraordinary waves in a LiNbO3 crystal inside the resonator. Our calculations are in good agreement with the experimental results of P. G. Konvisar et, al., and, further, revise their calculated result for extraordinary waves. The internal thermo-optic hysteresis and focusing effect are also investigated experimentally.

本文分析了多模激光束加热内腔元件所引起的温度场分布及热聚焦效应。计算得到的LiNbO_3寻常光和非常光的输入功率-输出功率曲线与Konvisar等人的实验结果符合,修正了他们计算的非常光曲线。在实验上,也观测了LiNbO_3的内腔热光滞后现象,并测量了内腔热光聚焦效应。

 
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