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Moreover, the behavior of modal flexibility sensitivity to parameters of damage was investigated. It is demonstrated that the maximum value of the elements in the corresponding column of the flexibility change matrix can be adopted to detect damage.

研究结果表明,通过损伤前后模态柔度矩阵的列最大变化值来判定损伤是合理的,而以对角元素变化值进行损伤识别可能出现误判。

A determinant in which all elements are zero except the elements of the principal diagonal and the elements immediately above and below this diagonal is called a continuant.

一个行列式除了主对角元素以及紧靠对角线的上面和下面的元素外,所有的元素均为零者叫做连行列式。

The dominant merit of the proposed decoupling PID controller was that the controller was developed in an absolutely transparent manner and the controller can realize significant decoupling among the nominal responses of system outputs. Moreover, every output can be tuned on line by the single adjustable parameter in the corresponding diagonal element of the controller.

该解耦PID控制器的突出优点是控制器设计过程简单直观;控制器可以实现标称系统输出间的显著解耦;系统输出分别使用相应控制器对角元素中的调节参数进行单参数整定。

The sum of the elements of the principal diagonal of a matrix.

所有对角元素都相等的梯形矩阵。

Quasi diagonally dominant matrix with chain of non-zero elements ; Comparison matrix ; Principal minor

本文主要讨论了拟具非零元素链对角占优矩阵的几个性质,丰富了拟具非零元素链对角占优矩阵的理论。

For this method, integeral was proceed by triangular Gaussian quadrature method in polygon domain, which can reduce computational time greatly. Neighbor nodes database was create which can reduce neighbor nodes searching time. Rock and soil cutting problem are two complicated problems, so a robust method is needed to treat essential boundary condition.

岩土掘削数值分析要求无网格法拥有高效而适应性强(来源:ABC论文f1网www.abclunwen.com)的本质边界条件处理方法,本文提出一种新的处理方法,该方法通过改变边界节点权函数使试函数通过边界节点,并采用对角元素改1法满足本质边界条件,该方法灵活性强,适用于各种岩土掘削问题。

A new approach is proposed to estimate the radial velocity by extracting the phase information of the off-diagonal elements in the sample covariance matrix. The technique is verified experimentally by both simulated and real SAR data.

在此基础上,提出一种新的运动目标测速定位方法,该方法通过提取双通道SAR数据的协方差矩阵非对角元素相位信息来对运动目标进行测速和定位。

A scalar matrix in which all of the diagonal elements are unity.

所有对角元素都相等的梯形矩阵。

It is also pointed out that an n-mode boson coupled quadratic Hamiltonian can be diagonalized by a "negative unitary" matrix which is an element of complex symplectic group SP(2n,c),and an n-mode fermion coupled quadratic Hamiltonian can be diagonalized by a unitary matrix which is an element of complex fermion group F(2n,c).

并且指出,对于n模玻色子耦合二次型哈密顿量,通过一个负幺正矩阵它是复辛群SP(2n,c的元素可以把它对角化;对n模费米子耦合二次型哈密顿量,通过一个幺正矩阵它是复费米群F(2n,c的元素可以把它对角化。

U(4) algebra is very suitable to describe triatomic molecules, for their Fermi interaction can be described by using nondiagonal matrix elements of Majorana operator.

在研究多原子分子的李代数方法中,尤以U(4)代数适合描述三原子分子,这不仅仅是因为U(4)代数完全描述的是三维情形,物理图象更加清晰直观,而且,U(4)代数的Fermi相互作用可以由Majorana算子的非对角元素给出,不需要再引进另外一个代数。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。