不等式

A class of systems of impulsive delay parabolic partial differential equations with nonlinear diffusion coefficient is considered.

考虑一类具非线性扩散系数的脉冲时滞抛物型偏微分方程组，利用Green公式、垂直相加法和脉冲时滞微分不等式，获得了该类方程组在Robin边值条件下所有解振动的充分判据。

In the theory of dynamic flow assignment, we present a link-based VI model for the dynamic path choice.

在动态平衡配流理论中，给出了用于动态路径选择的基于路段的变分不等式模型。

This is achieved by adding to the Chan-Vese functional a penalization term taking care of the chosen region.

这是第一次发现Sobolev不等式具有这种现象。第二部分：(第2-5章)在第二章中，我们提出了在特定区域提取特定目标的一个改进型Chan-Vese模型。

In this paper, we introduce the concepts of generalized Schur complement and generalized Perron complement, and obtain many important inequalties involing them.

在已有文献的基础上，本文引入并研究了矩阵广义Schur补，广义Perron补，得到了一系列与其有关的重要不等式。

In Chapter 4we obtained the properties of the generalized Perron complement of inverseM-matrices and inequality of Fan product of H-matrices.

第四章介绍了不可约逆M-矩阵的广义Perron补的性质，以及H-矩阵的Fan 积不等式。

In recent years, many authors focus on inequalities involing Schur complement and Perron complement, and there have been many results in the literature.

近些年来研究矩阵Schur补，Perron补的不等式便吸引了诸多学者的目光。

The raw data of I, Q channels are converted into the same amplitude and phase data in polar coordinates. The formula of optimal bit allocation for the amplitude and phase is deduced by the Lagrange multiplier based on the Rate-Distortion equality.

将I， Q两路原始数据转化为极坐标下相同大小的幅度－相位数据，根据率失真不等式由拉格朗日乘子法推导了基于幅度微分熵和相位微分熵的最优比特分配公式，然后用对应的比特数分别进行幅度和相位的网格编码量化。

Secondly, based on the piecewise continuous Lyapunov function andconstant Lyapunov function, the problems of robust guaranteed cost control forparametric uncertain sampled-data control systems are investigated by using the jumpsystem model and linear matrix inequality technique.

然后，针对参数不确定采样系统的鲁棒保性能控制问题，利用跳变模型和线性矩阵不等式技术，分别基于分段连续Lyapunov函数方法和定常Lyapunov函数方法研究了采样系统的鲁棒保性能控制器综合问题。

The piecewise-linear feedback control law is off-line computed by LMI optimization problems and the on-line control computation reduces to the simple evaluation of the defined piecewise linear function, which makes the online computational efficiency significantly improved.

针对预测控制滚动优化命题的在线计算任务大，作者提出了一种基于分段反馈的离线预测控制算法，通过离线求解线性矩阵不等式优化命题构造分段反馈控制律，在线运行时只需实施满足条件的反馈控制律，极大地提高了控制器在线计算效率。

While equations (4) and (5) in general are preferred for the general floating point comparison check over equation (1), they are unusable for the test on closeness to zero.

相对於等式(1)，虽然在通常情况下，不等式(4)和(5)是通用浮点数比较检查的首先，但在测试接近於 0 的时候是不安全的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。