查询词典 quadratic function

A third order ENO finite volume method for hyperbolic conservation laws on unstructured triangular mesh is introduced.In order to obtain the third order accuracy on spatial discretization,a weighted quadratic interpolation is constructed on every triangular mesh.Two point Gauss quadrature formula is also used on each edge of every triangular mesh and the third order TVD Runge-Kutta method is used for time discretization.The numerical order of convergence and the numerical result of a mesh 3 wind tunnel with one step are given.

摘 要 基于双曲型守恒律方程，对非结构三角形网格给出了一种ENO(Essentially Nonoscillatory Scheme)型有限体积格式，方法的主要思想是先对每一个三角形单元构造一个加权的二次插值多项式，而在计算交界面的流通量时采用了两点高斯积分公式以保证格式的整体精度，时间离散采用三阶TVD Runge-Kutta方法。

Massive simulation experiments have proved the correctness and possibility of the fitting algorithm of quadratic surface which is based on general equation.

大量的仿真数据实验表明，本文提出的基于一般化方法的标准二次曲面拟合算法的正确性和可行性。

Consideration of size leads to a general proposition for quadratic forms in normal variate which gives conditions for a class of test statistics, which are chi-square under

正态变量的二次齐次式给出了一类统计检验的条件，对大小的考虑引出了一个对其一般性的命题，即在分类正确若为卡方分配，在分类有误时将有向上偏误。

Consideration of size leads to a general proposition for quadratic forms in normal variate which gives conditions for a class of test statistics, which are chi-square under correct specification, to be oversized under misspecification.

正态变量的二次齐次式给出了一类统计检验的条件，对大小的考虑引出了一个对其一般性的命题，即在分类正确若为卡方分配，在分类有误时将有向上偏误。

The method is obtaining the ground state of the Hamiltonian which is constructed by general quadratic form of generalized coordinates and momenta.

方法是求得一维和二维以及n维由广义坐标和广义动量的一般二次型构成得哈密顿量的基态，由此可以求得各能级的本征态。

In order to meet the discharge norm of the contamination concentration limit, zone generalized predictive control is adopted which transforms the conventional quadratic objective of the MPC into a linear programming with soft constraints; besides, considering the wastewater treatment plants energy-saving targets, a multi-objective predictive control is formulated and finally hierarchical multi-objective optimization algorithm is applied for on-line optimization solution.

根据污水处理过程的实际要求，为了满足氮浓度的排放标准区间要求，研究了污水处理过程的区间广义预测控制策略，把预测控制的常规二次目标转化为带软约束问题的线性优化问题；同时考虑到污水处理的能耗，在出水水质目标之上建立了能耗最小目标，得到了污水处理的多目标预测控制，最后采用分层多目标优化算法进行在线优化求解，得到污水处理过程的多目标预测控制。

The topics covered in these sections are the geometric interpretation of systems of linear equations, the classification of finite symmetry groups in two and three dimensions, the exponential of a matrix and its application to solving systems of first order linear differential equations with constant coefficients, and Hurwitz's theorem on the composition of quadratic forms.

这些条文所涉及的主题是线性方程组的几何解释，在两个和三个有限对称群的分类方面，一个矩阵及其应用，以解决一阶常系数线性差分方程，系统指数赫尔维茨定理在二次形式组成。

Under appropriate conditions, we obtain the global and quadratic convergence of the proposed method.

在适当的条件下，我们证明了算法的全局收敛性和二阶收敛性。

Under mild conditions, we prove that our algorithm has the properties of global convergence and quadratic convergence.

在适当的条件下，证明了算法的全局收敛性和二次收敛性。

Of the Quality Management Dept. has introduced more than 80 specialized testing equipments for various component testing. It has two professional testing labs. The inspecting building covers an area over 1,000㎡, equipped with high/low temperature testing chamber, ultra-low temperature testing chamber, xenon aging testing chamber, dynamic balance tester, RoHS tester, salt fog testing chamber, quadratic element microscope, goniometry meter, temperature rise tester, and relative advanced testing and inspection instruments.

品质管理部IQC课拥有80余种零部件专业测试设备，拥有二个专业试验室（RoHS实验室和盐雾实验室），检验场地建筑面积1000多平方米，拥有高低温试验箱、超低温试验箱、氙灯老化试验箱、动平衡测试仪、RoHS测试仪、盐雾试验箱、二次元显微镜、亲水角测试仪、温升测试仪等先进检验试验设备

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。