杂乱的

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。

With flourishes of all kinds of profitable businesses in tourist attractions, the underlying interests have been floating on the surface, but problems regarding multi-stakeholders have also emerged, for example, neglecting the community interest demands, little interest from the local tourism development; supervision absent in protections of resources and environment; unorderly constructions in low class, sight pollution and so on; In the course of profit production in a scenic spot, conflicts frequently occur among government, investors, community residents, tourists, and the essential cause of those conflicts lies in interest-distribution imbalance.

随着旅游景区的各种盈利性经营活动的日益兴起，使得景区的潜在商业价值日益凸显，利益相关者的多元化问题也日益突出，隐藏着的利益矛盾和冲突也逐渐激化凸显出来，如社区居民利益需求的忽视，从旅游发展中获益有限；景区资源与环境保护及监督不力；杂乱、低水平的建筑及景观污染等。在景区创收过程中涉及到的政府部门、投资者、社区居民、旅游者等利益相关者之间的冲突和矛盾频频发生，这些冲突实质是各方利益相关者间利益分配的不平衡，体现了他们的利益关系的冲突。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。