查询词典 set of measure zero

Necessary and sufficient conditions are given when n=m+1. Finally, we show that when n=m+1, all systems but a measure zero set are linearizable.

对输入数仅比系统维数少一的情况给出了充要条件，并证明了在此情况下几乎所有的系统均可线性化。

Firstly,the classification of probability rule is analyzed on the base of classic rough set concepts and extended to the equal relation of set in the indefinite system,namely,the upper and lower approximation space of research set is expressed in the form of conditional probability;then,according to the measure of probability rule,the attributes reduction is carried out and the classification rule is extracted by using the related parameters of condition attributes' impend precision from the angle of conditional probability;Finally,the related simulation test result is given and the result shows the classification rules with probability measures is more rational.

首先在经典粗糙集概念的基础上分析概率规则的分类，并将其推广到不确定系统的集合等价关系中，即用条件概率的形式表示研究集合的上下近似空间；然后根据概率规则的测度从条件概率的角度利用条件属性的逼近精度的相关参数进行属性集的约简进而提取分类规则；最后给出了相关的仿真实验结果，结果表明带有概率测度的分类规则更合理。

From the point of view of measure theory, this paper gives the unified definition of measurable real fuzzy set-valued function and n-dimensional measurable real fuzzy set-valued function, and discusses the fundamental properties of them and their invers fuzzy set-valued function by combining with fuzzy σ-algebra.

5研究了有界闭复模糊数的四则运算、交并运算以及上下确界、上下极限与极限运算的若干基本性质

Extract information based on the instantaneous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值，零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。

The Kelvin temperature scale has absolute zero as its zero point, and its fundamental unit is the kelvin.

克尔文温标以绝对零度为其零点，它的基本单位是克尔文。

At a temperature of absolute zero, the entropy of uniform condensed systems is exactly zero.

在温度为绝对零度，熵的统一浓缩系统正是为零。

A If two differentials d s and dX are zero, then dX ' has to be zero too. Since d s = 0, we have s = constant, the it is a reversible adiabatic process →.

对於一个系统有两个以上的独立变数时，由於热力学第二定律，及温度是不同状态方程式中共用的变数，所以也是可积分的。

The zero dynamics were divided into several types, and the relations between the zero dynamics of general nonlinear system and that of its adjoint system norm were discussed by using functional analysis.

佘焱将零动态分为几种类型，运用泛函分析等工具，研究了一般非线性系统与其作为仿射非线性系统的伴随系统的零动态之间的关系。

When the relative velocity between missile and target is high, the change of the LOS will not be kept zero but vibrate. It can result in the system unsteady. A new SMG is designed. It do not request keeping the change of the LOS be zero all the time, but relax restriction advisably and automatically as missile approach target.

针对这一问题，设计了一种新型滑模制导律，其并不要求时时将视线角率控制为零，而是随着弹目标距离的减小，自动适当地放宽对视线角率的约束，从而有效缓解了传统滑模制导带来的强振荡问题。

In order to achieve zero trigger the purpose of the system design of the alternating current zero-detection circuit.

为了达到过零触发的目的，系统中设计了交流电过零检测电路。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。