有四种

Bloom's bodyguard distribute Maundy money, commemoration medals, loaves and fishes, temperance badges, expensive Henry Clay cigars, free cowbones for soup, rubber preservatives in sealed envelopes tied with gold thread, butter scotch, pineapple rock, billets doux in the form of cocked hats, readymade suits, porringers of toad in the hole, bottles of Jeyes' Fluid, purchase stamps, 40 days' indulgences, spurious coins, dairyfed pork sausages, theatre passes, season tickets available for all tramlines, coupons of the royal and privileged Hungarian lottery, penny dinner counters, cheap reprints of the World's Twelve Worst Books: Froggy And Fritz, Care of the Baby, 50 Meals for 7/6, Was Jesus a Sun Myth?

布卢姆的卫兵们散发濯足节的贫民抚恤金、纪念章、面包和鱼、戒酒会员徽章、昂贵的亨利。克莱雪茄、煮汤用的免费牛骨、装在密封的信封里并捆着金线的橡胶预防用具、菠萝味硬糖果、黄油糖块、折叠成三角帽形的情书、成衣、一碗碗裹有奶油面糊的烤牛排、一瓶瓶杰那斯溶液、购货券、四十天大赦。）、伪币、奶场饲养的猪做成的香肠、剧场免票、电车季票、匈牙利皇家特许彩票、一便士食堂的餐券、十二卷世界最劣书的廉价版：《法国佬与德国佬》、《怎样育婴》、《七先令六便士的菜肴五十种》、《耶稣是太阳神话吗？

One reason is that the model is an algebra method and it is based on the theory of minimal element. It can give more credible proof. Another reason is that the model tries to prove security of protocols, rather than check them. Thirdly, the model is simple and easy to use, and proof can be finished by manual. Moreover, graphic description makes its proof more comprehensible. Fourthly, there is much research work related to the model, which gives me a good springboard.

首先，该模型是一种代数方法，以极小元等理论为基础，可以给出可信度较高的证明；其次，该模型不是验证协议，而是试图证明协议的安全性；第三，该模型简单、易用，可以手工的方式完成证明，而且图形表示使其证明更加直观；第四，关于该模型有许多相关的研究工作，这为进一步工作打下了良好的基础。

The abstract result contains several concrete results in the literature and can also be used to deal with some new cases for resonant differential equations.In the introduction, we briefly introduce the development process of the variational methods. In Chapter 2, we list some basic knowledges refering to the variational methods, including the Sobobev space,—△ operator, the weak solution and the minimizing sequence methods and some minimax theorems. In Chapter 3, we introduce the research process of Hamiltonian system of second order and the semilinear elliptic problems, using the methods introduced previously. In Chapter 4, we prove the main theorem of the thesis, and apply it to the problems in the previous Chapter, and can also be applied to some new resonant cases.

在前言中，简要介绍了变分法的产生、发展过程，在第二章中我们介绍了有关变分法的一些基本知识，包括Sobolev空间，—△算子，弱解，极小化序列方法和一些极小极大定理，在第三章中我们介绍了非线性项有界或满足次线性条件，以及它满足推广的Ahmad-Lazer-Paul条件时，二阶Hamiltonian系统和半线性椭圆问题的研究历程，最后在第四章中我们证明了本论文的主要定理，并把它应用到第三章的问题中，使得前面的几种共振的情形都可以统一到这个抽象的结果中。

As one part of the project, the dissertation is developed with thelocalization problem in mobile robot navigation. Combined with "MobileRobot 1 of Central South university (MORCS-1)", a mobile robot designed byus that equipped with a 2D laser measurement system to sense the environmentand the proprioceptive sensors such as the odometry, gyroscope to calculate itsdead reckoning, the approach about the four kind uncertainty factors of mobilerobot localization is studied. These researches include that the error analysisand calibration of position sensors is implemented to reduce the measurementnoise, the 3D kinematic model of mobile robot is built to gain the accuratepose in complex terrain, some work on the automatic detection of static ordynamic obstacles based on laser scanner is investigated to eliminate thedynamic influence of the environment and to realize the reliably absoluteposition, and lastly a robust algorithm is presented to involve the incrementalenvironment mapping and self-localization of mobile robot with unknown dataassociation and to improve the self-localization performance of mobile robotunder unknown environment.

作为该项目研究的一部分，本论文以移动机器人导航中的定位问题为研究内容，利用自行研制的装配有二维激光雷达环境感知系统，并通过里程计、陀螺仪等内部传感器来实现航迹推测的移动机器人"中南移动1号MORCS-1"，重点围绕影响移动机器人系统定位的四类不确定性处理展开研究：通过移动机器人定位传感器的误差分析及校准，旨在消除传感器噪声所带来的测量误差；通过建立移动机器人的三维运动学模型进行航迹推测，以期实现复杂地形下精确的移动机器人本体姿态感受；通过基于激光雷达的动静态障碍的自主检测等相关研究，尽量消除环境的不确定因素影响进而实现可靠的移动机器人绝对定位；通过以上研究，针对未知数据关联下移动机器人增量式环境建图与自定位的研究提出一种鲁棒的滤波算法，改善未知环境中移动机器人自定位的性能。

Furthermore, we propose and implement multilevel circuit partitioner. The achievements of the dissertation are as follows: During the coarsening phase, we propose thecore-sorted heavy-edge matching algorithm and give its details based on the compressed storage format of graph.

本文主要的工作和创新点有以下四个方面：在多水平粗化阶段提出了一种基于核排序的重边匹配算法，给出了基于图压缩存储格式的算法实现细节。

And Wang Yuanqi" in the old traditional Chinese painting. The said "vices of four Wangs" means the vogue of "copying the ancient paintings and ancient masters" that each stroke has its origin or basis. Such vogue indicates that painting is radically an inheritance of the prominent "models or patterns, while painters are the experts of high percipient to some certain extent.

而所谓"四王恶习"其实就是讲究笔笔有来历的"临古摹古"之风，这种风气表明，绘画从根本上就是一种对杰出"样式"(或用图像学的术语叫"图式")的继承，画家从某种意义上说同时也是一个具有极高鉴赏力的专门人才。

And that there was sufficient ground for Sadducean opposition to Pharisaic traditionalism, alike in principle and in practice, will appear from the following quotation, to which we add, by way of explanation, that the wearing of phylacteries was deemed by that party of Scriptural obligation, and that the phylactery for the head was to consist of four compartments.

并有足够的理由Sadducean反对Pharisaic传统，都在原则上和实践中，会出现从下面的报价，我们添加了一种解释，即穿著phylacteries被认为是由党的圣经义务，而且护符的头部是由的四个组成部分。

Secondly, the athletes should adopt the vibration training method or the strength training method with unstable supporting surface.Because these two methods can not only activate motion element which couldn\'t be activated in most of time,but also add up the harmonization of the nerve muscle and make the proprioceptor trained.Thirdly,we should make or choose special archery shoes which have slip-resistant sole and suitable degree of bend in the front and back,suiting for the competition ground and adding Up the stability,fourthly,we should properly pay attention to the stage of lifting.

因为这两种训练方法不仅可激活多数情况下不能激活的运动神经元使力量增加，而且可增加神经肌肉的协调性，同时也使本体感受器得到训练，从而增强对射箭动作的感觉能力；第三，为射箭运动员定制或选择有防滑块鞋底、前后上翘程度符合运动员脚型特点的射箭专用鞋，既可以适合比赛地面特点又能增加稳定性；第四，适当重视举弓阶段的训练。

Among the pioneers in mixing together the two styles in the 1940s were the big bands of Dizzy Gillespie and Machito, and the music (which has never gone out of style) has remained a viable force through the 1990s, played most notably by the bands of Tito Puente and Poncho Sanchez.

在四十年代时那些将这两种音乐元素融合的先驱之中，有两支大乐队值得一提，那就是Dizzy Gillespie和Machito，而这样的音乐（之后再也没有改换过形式）即使是在九十年代仍十分盛行，目前最著名的演奏乐队莫过于Tito Puente和Poncho Sanchez了。

Quadrupedal armored herbivore of the Jurassic and Cretaceous.

侏罗纪和白垩纪的一种四足有甲食草动物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐