可提取的

11 The facilities hereby expressed to be granted to the Borrower may be utilized or drawn down by all or any one or more of them AND the repayment and other obligations of the Borrower hereunder shall continue to be binding upon all of them notwithstanding that not all of them may from time to time or at any time have been making use of the facilities hereby expressed to be granted or that such facilities may be utilized by all or any one or more of the Borrower in different proportions AND shall continue in full force and effect and be binding upon all the persons comprising the Borrower and any of them not released by the Lender from their obligations hereunder notwithstanding the liquidation or cessation of business of any of the Borrower or the release by the Lender of any one or more of the Borrower from any or all of their obligations hereunder AND no arrangement between the Borrower and their successors or assigns shall prejudice the right of the Lender to pursue the remedies against any one or more of them and in such order and manner as the Lender may think fit and the relationship between the Lender and/or the Borrower shall be that of principal and debtors and no giving of time or indulgence to or release of any one or more of the Borrower shall affect the right of the Lender to pursue the remedies against the other or others as if such giving of time indulgence or release had not been made

18.11 根据本契据明文规定批予借款人的信贷安排，可由借款人全部各人或任何一人或多人使用或提取，而借款人根据本契据承担的还款及其他义务须继续对全部各人具约束力，即使并非全部各人皆不时或在任何时间利用根据本契据明文规定批予的信贷安排，或即使信贷安排可能由借款人全部各人或任何一人或多人按不同比例使用，借款人根据本契据承担的还款及其他义务仍须继续对全部各人具约束力。即使借款人任何一个清盘或停业，或贷款人已解除借款人任何一个或多个在本契据中的任何或全部责任，借款人根据本契据承担的还款及其他义务须继续有效，并对借款人所包括的全部各人及当中任何未获贷款人解除本契据义务的人士具约束力；借款人、其继承人或受让人之间的安排，不得妨碍贷款人以其认为合适的次序及方式针对借款人及其继承人／受让人任何一人或多人采取补救方法的权利，而贷款人及／或借款人之间的关系须为债权人与债务人之间的关系，借款人任何一人或多人获延期、宽限或免除责任，均不得影响贷款人针对其他一人或多人采取补救方法的权利，犹如从未作出延期、宽限或免除责任一样。

Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.

本文在混沌理论研究成果的基础上，对混沌信号的产生做了详细的分析，涵盖以下内容：首先介绍了混沌的定义，混沌信号的基本特性和各种判别方法，特别是对简单的一维Logistic映射的硬件实现问题做了初步探索；其次对混沌信号的产生方法进行讨论，借助于MATLAB、PSPICE、EWB等仿真软件，对几种混沌电路输出的混沌信号进行了分析比较，并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究，通过混沌电路调试，深入研究电路中各元器件，特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响；再次研究连续混沌系统的数字化硬件产生，设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案，在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点；最后针对不同混沌系统，采取不同算法，提取混沌特性参数Lyapunov指数，进而对不同的混沌信号发生器的性能进行了分析。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发，本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台，实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能，使用复合文档技术和流压缩技术进行数据的存储，使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息，使用自定义哈希函数来提高运行速度，实验证明，该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求；通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间，加载在该空间的数据可以具有较好的鲁棒性，基于此，本文设计了一种利用汉字结构加载水印的文本数字水印方法，并使用汉字数学表达式平台将其实现；由于水印嵌入算法对于文本数字水印的鲁棒性至关重要，本文充分利用汉字数学表达式理论的优点，设计了一种文本分层的方法，并使用汉字数学表达式平台将其实现，使文本成为一个立体的空间，使嵌入在其中的数据具有更好的鲁棒性；最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上，结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法，经实验证明，该方法有良好的鲁棒性和较好的隐蔽性。

Main works in this paper include:(1) Studies on pipelines network underground" spacial data model and data structure;(2) Analysing and extracting the data of cities" pipelines network underground;(3) Methods of development with OpenGL in VC++;(4) Measures of pipelines network undergrounds realizition, such as division of map layer, foundation of coordinate system, real-time roaming about and so on;Finally, works that has been done in this paper is summarized, and prospect of the problems should be gone deep into in future is made, integrated with the experience and deficiency in this paper.

论文所做的工作主要有：(1)地下管网空间数据模型与数据结构的研究；(2)管线源数据的分析与提取；(3)地下管线可视化的方法，例如图层划分、坐标系的建立、地图投影的定义、漫游中的实时处理技术以及地下管线的3D几何造型技术等；(4)VC++中OpenGL开发和运用的方法；最后对本课题所完成的实际工作和所取得的结论性成果进行了概括和总结，结合在研究过程中的体会和不足，对以后的研究中需要进一步深入研究的几个方面做了一个简单的展望。

Some strains of the nematode-bearing bacteria were bioassayed for their parasitism. All these bacteria can totally not grow or grows badly on the media incorporating the extracts of pine trees, indicating some substances existing in the trees will harmful to the bacterial strains, which is further convinced by preliminary inoculation showing that single bacterial species will not infect Pinus thugbergii. Hence, the growth and reproduction of the nematode-carrying bacteria, which could produce toxic substances causing the death of the tree cells, is closely related to the nematodes, when they first enter to the trees. In the same time, the activity of bacteria improved the circumstances for which nematodes are living, which in turn will beneficial to the growth of nematodes. Thus, there is a complicated interaction among nematodes, bacteria, and pine trees.

对松材线虫携带的细菌的部分菌株进行了寄生性测定，表明这些细菌在添加松树提取液的细菌培养基中不能生长或基本不能生长，这说明松树体内可能存在某些不利于细菌生长的物质，同时初步的接种试验证实，单独的细菌接种不能感染健康的黑松，因此，线虫携带的致病细菌在最初进入树体时，其生长和繁殖与线虫密切相关，结合细菌产生的毒性物质可造成黑松细胞死亡的情况，说明细菌的生长与线虫有关，同时，细菌的活动改变了线虫在松树内的生长环境，使环境变得有利于线虫的生活，因此，线虫、细菌和松树三者存在着复杂的生物关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失