查询词典 simultaneous equations

This work presents the parametric equations of acceleration poles and the polynomial equations for the loci of acceleration poles of the couplers of two planar linkages. Moreover, the design procedures for synthesizing the mechanisms with a coupler point tracing through two acceleration poles are proposed.

本论文之目的，在於推导两型平面连杆机构耦杆的加速度极心位置之参数式，及其轨迹之多项式方程式，并且分别提出设计程序，藉以合成耦杆点通过两个加速度极心之机构。

Adding boundary conditions in whole equations in the wavelet Galerkin method frequently does with its of differential equations. The result can derive by solving transcendental equation, which make unknow quantity number and the number of system of equation become nonuniformity.

经常采用的小波Galerkin方法对微分方程边界条件的处理，均是将边界条件作为附加方程补充到整体方程中，从而求解超越方程组得到原方程的解，这导致了求解过程出现的方程组个数与未知量个数不一致。

Afterward, vibration equations of bundle conductors system which consider the effects of spacer dampers are derived(including transcendental function and plural), the vibration frequencies and modes of bundle conductors system are got by solving the transcendental eigenvalues of these equations. Then the amplitude ratio of each spacer dampers to sub-conductors are got, so bundle conductors can be exactly solved with the application of energy balance method as single-conductor.

然后，推导出了考虑阻尼间隔棒阻抗影响的分裂导线体系的振动方程组，通过求解超越特征值得到分裂导线的振动频率和模态，得到各间隔棒、各段子导线的振幅比，从而使分裂导线可以象单导线一样应用能量平衡法进行精细求解。

Because the governing equations have the relationship of translation symmetry, the displacement fields and the electrical potential fields can be represented by Bloch theorem to get the periodical structural governing equations.

将应力和电位移场以位移和电位场表示，即可利用层与层间的位移、应力、电位和电位移必须连续等条件求得转换矩阵，再满足上下表面的边界条件即能求得出压电周期叠层板波传频谱。

The formulation of power system transient stability preventive control based on optimal power flow is presents in this thesis, in which multicontingency is considered. The infinite dimensions nonlinear optimization problem in which differential-algebraic equations are existed is changing into finite dimensions difference-algebraic equations by implicit trapezoid method.

建立了基于最优潮流的电力系统暂态稳定预防控制模型，通过隐式梯形法将含有发电机动态微分-代数方程和暂态稳定约束的无限维优化问题转换成有限维的常规静态最优潮流问题。

Jacobian Davis iterative method of solving equations AX = B, least squares polynomial fitting, portfolio Simpson formula for integration, with a triangular decomposition method of solving equations AX = B.

拉格朗日插值多项式拟合，牛顿插值多项式，欧拉方程解偏微分方程，使用极限微分求解导数，微分方程组的N=4龙格库塔解法，雅可比爹迭代法解方程AX=B，最小二乘多项式拟合，组合辛普生公式求解积分，用三角分解法解方程

The author Discrete equations are attanied by using Alternating Direction Implic and equations are solved by using Tridiagonal Matrix Algorithm.The velocity and pressure distribution of spiral flow is attained.

本文采用交替方向的隐式格式离散方程，并利用追赶法求解代数方程组，得到了圆管螺旋流速度场、压力场的分布规律。

The bubble-point method and tridiagonal matrix method are proposed as solution of MESH equations(Material equation, phase Equilibrium equation, Summation equation, Heat equation), through which equations could be solved quickly and steadily, and the composing mole fraction at the top of tower and Key composition profiles and temperature of every stage are given.

提出采用三对角矩阵法和泡点法(BP，Bubble Point)相结合作为模型求解的解决方案，可快速稳定地求解复杂的MESH方程组，并给出塔顶液相组分组成和各塔板的关键组分分布及温度分布。

Here a simple technique for parametrization construction of 17/11 biorthogonal wavelet family is presented: first, the associated synthesis filter is formulated as one trigonometric polynomial represented by two free parameters; then the perfect reconstruction condition of the filter bank is reduced to one system of linear equations; finally the analysis filter is obtained by solving this system of linear equations. Thus, the exact free parameter expressions for the 17/11 biorthogonal wavelet filter banks are derived.

该文给出了一种参数化构造17/11双正交小波组的简便方法：首先把小波合成滤波器表示为用两个自由参数表达的三角多项式，然后把双正交小波的精确重构条件归结为一个线性方程组，最后求解此方程组得到对应的小波分解滤波器，从而得到了17/11双正交小波滤波器的参数表达式。

Results: The trinomial fitting equations of indexes were all superior to their multi-linear regression equations, and the predictive values in the established mathematical model were in good conformity with the experimental values.

结果：各指标的三项式拟合方程均优于多元线形回归方程，建立的数学模型的预测值与实际值符合较好。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。