查询词典 permutation group

Topics include permutation tests, permutation limit theorems, 2-sample rank tests and their asymptotic efficiency, k-sample rank tests, 1-sample tests of location, paired comparisons, rank tests for symmetry and independence, and analogues

包括排列检验，排列极限理论，两样本秩检验及其渐进有效性，k个样本的秩检验，单样本的位置检验，配对比较检验，对称分布和独立分布的秩检验，基于秩的线性模型的模拟。

Chaper 3 is general description of ADA encryption. Chapter 4 deals with the transform domain encryption. Includes the element of perfect and quasi-perfect transform domain encryption, and presents two type new schemes. Chapter 5 deals with asynchronous ADA encryption. Extends the general theory and model of asynchronous ADA scrambling, and introduces two type phase-distortion-free a synchronous ADA schemes. Chapter 6 is about new direction of ADA encryption. Includes TASI scrambling, transform domain dummy insertion scrambling, noise coving scrambling and other multi-dimension ADA scrambling, and proposes an adaptive dummy spectrum insertion asynchronous scrambling and a new adaptive noise-coving DFT scrambling algorithm. Chapter 7 is on permutation key. presents part results on permutation features, selecting criterion and constructing method. Chapter 8 introduces the hard and software design of a common ADA encryption/decryption system, and presents the experimental results on several proposed ADA encryption schemes.

第一章为绪论；第二章为语声信号、及其处理基础；第三章为模数模加密的一般描述；第四章为变换域加密研究，包括变换域加密机理，变换域完善与准完善保密研究，提出两种新的变换域加密方案；第五章为异步模数模加密研究，扩充了异步模数模加密的一般理论，介绍了两种新的无相位失真异步加密方案的原理与实现方法；第六章对模数模加密新方向：TASI应用途径、变换域伪谱插空置乱、噪声掩盖、多维置乱加密的原理和方法进行介绍，提出了自适应伪频插空异步模数模置乱算法与自适应DFT系数噪声掩盖置乱新算法；第七章为置换密钥性质、筛选准则以及构造方法研究的部分结果；第八章介绍了通用模数模加/解密实验系统的硬件、软件研制概况，并给出了几种加密方法的实验结果。

If G is not of this form, H can be obtained by first performing a colunm permutation to put G into the form , and then performing the inverse permutation on .

如果G不具有这种形式，则可先通过列置换将G变换成形式，然后再对进行逆置换而得到H。

By using these "ranking" and "unranking" algorithms, any permutation that is positioned in lexicographic order, away from a given permutation by any specific distance, can be generated. This significant benefit is the main difference between the proposed method and previously published alternatives.

藉由此个演算法，我们可以产生一个n项目的排任意距，依字母大小序而言，的另一个排；此特点是我们的方法与其它研究最同的地方。

This dissertation mainly investigated two frameworks of H-matrix, such as SPB framework consisting of integer Subscript matrix, Permutation matrix and Bidiagonal matrix and MSPT framework consisting of Masking matrix, sparse Subscript matrix, Permutation matrix and approximately lower Triangular array matrix.

本文主要研究了两种H矩阵的类随机框架结构模型，一是SPB框架，由整数下标矩阵、置换矩阵、双对角线矩阵构成；二是MSPT框架，由稀疏下标矩阵、模板矩阵、置换矩阵和近似下三角阵列矩阵构成。

The Young operators can be distinguished as elimination operator and effective permutation operator by the normalization of Young basis, then the constructive rules of permutation operators of the orthogonal normalization of Young basis is given.

由杨盘基的归一化将杨盘的杨算符区分为消去算符和有效置换算符，进而给出了正交归一化杨盘基的置换算符构造规则。

Current, regular to searching the permutation of the result acknowledge spends search user inferior, the permutation that the user of close 2/3 expresses not to know to search a result is regular.

目前，搜索用户对搜索结果的排列规则认知度较低，近2/3的用户表示不知道搜索结果的排列规则。

The investigations in this thesis focus on several aspects as follows: We investigate the method that how to produce permutation matrix by using chaotic map, and get the method of image permutation based on chaotic map. This method can make original image to unorderly image to protect the true content of image. We investigate gray level mix function, and put forward a gray level mix function based on chaotic map. Because this function has chaotic characteristics, the image dealed with this function has very uniform histogram. Aiming at the contradiction between error robust and security on image encryption, we put forward a kind of gray level mix function including diffusion mechanism.

本文的研究工作主要集中在以下几方面：研究了如何利用混沌映射产生置乱矩阵的方法，给出了基于混沌的数字图像置乱方法，该方法能够将原始图像变成面目全非的杂乱图像，从而保护了数字图像的真实内容；研究了灰级混合函数，提出了基于混沌的灰级混合函数，由于该函数具有混沌特性，所以经过该函数处理后的图像具有非常均衡的灰级直方图；针对图像加密的错误鲁棒性与安全性之间的矛盾，提出了一种含有扩散机制的灰级混合函数。

If this is the smallest permutation, then it reorders the sequence to be the largest permutation and returns false.

如果这是最小的排列，则它将序列重新排列为最大排列，并返回 false。

Result: The nm-HAP-sol present the dispersed and uniformity needle. A431cells inhibition ratio was maximizing at the 5 day in the 400mg/L nm-HAP-sol group, the 200mg/L nm-HAP-sol group and the 100mg/L nm-HAP-sol group, inhibition ratio of the 400mg/L nm-HAP-sol group, the positive control group and the 50mg/L nm-HAP-sol group was respectively (77.89±6.29)%,(77.46±8.26)% and (1.23±0.15)%. It was detected that the number of A431 cells were persistently increasing in the 50mg/L nm-HAP-sol groups while decreasing in the 400mg/L nm-HAP-sol group, the positive control group and abidingly increasing for 4 and 3 days then decreasing in the 100mg/L and 200mg/L nm-HAP-sol group by inverted microscope.

结果：超声乳化法配制的HAP纳米溶胶呈均匀分散的针状；400mg/L、200mg/L和100mg/L溶胶组对A431细胞抑制率在第5天达到各组最大值，此时400mg/L溶胶组与阳性对照组的抑制率分别为（77.89±6.29）%和（77.46±8.26）%， 50mg/L溶胶组抑制率为（1.23±0.15）%；倒置显微镜下见50mg/L溶胶组细胞数目持续增加，聚集成簇，细胞呈现多角形或梭形，胞浆透亮，而100mg/L 和200mg/L溶胶组的细胞数目分别增加至第4天和第3天开始下降，400mg/L溶胶组和阳性对照组细胞数目持续减少，细胞体积缩小，漂浮细胞增多。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。