未分析的

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

They demonstrates the following characteristics obviously:The inside financing is far below than the outside financing;(2) The proportion of stock financing is higher than bond financing in the outside financing;(3) The equity structure is unreasonable;(4) For the level of the current liability is so high, the debt structure is unreasonable also;(5)Take the ration chares as the main resource of long-term capital.

而后，分析我国上市公司融资现状的成因：资本结构理论认为，公司融资方式的选择受到资本成本、融资工具等因素影响外，上市公司的融资问题反映的实际上是我国上市公司在转制建制上的不足，特别未建立高效率的治理结构和有效的治理机制。

Several other poster presentations reinforced the message that once-weekly epoetin was effective, although none of these others had a comparator dose. Two posters presented results from meta-analyses of epoetin alfa clinical trials. One was carried out by Pere Gascon, MD, PhD, and colleagues, from the University of Barcelona, in Spain, and involved 4296 patients with mixed tumor types, while the other, reported by Mario Dicato, MD, from the Luxembourg Medical Center, involved 2019 patients with breast cancer. Both concluded that 40,000-IU epoetin alfa is effective and well tolerated; it ameliorates the impact of chemotherapy on hemoglobin and improves quality of life, thus representing "good anemia management," the researchers concluded.

许多其它的墙报研究同样证实每周投予一次红血球生成素是有效的，虽然其它研究中未使用比较组；另两项比较红血球生成素阿法临床试验结果的综合分析，一项是由Pere Gascon医师与其来自西班牙巴塞隆纳大学的同事，收纳了4，296位各种肿瘤种类病患的研究；另一篇是来自Luxembourg医学中心Mario Dicato医师，收纳2，019位乳癌病患的研究，这两项研究的结论都是40，000单位的红血球生成素阿法同样有效、且耐受性佳；该疗法降低化学疗法对血红素的不良影响，且改善了生活质量，因此可以说为是「良好贫血处理」的标竿。

By setting different kinds of filters of various thickness values before the pinholes of camera and using the spectral sensitivity of the camera,multi-frame X-ray images of wire arrays Z-pinch implosions in different energy ranges were obtained. By analysing the relationship between the intensity profiles of corresponding frames and the spectral sensitivity of the camera,it is allowed to estimate X-ray photon energy range in local areas of images.

通过对皮秒分幅相机和2.3μm厚formvar膜滤片的光谱响应特性分析，以及对同一时刻粘贴2.3μm厚formvar膜滤片和未粘贴2.3μm厚formvar膜滤片两幅图像径向辐射强度波形的对比，确定出获取的X光辐射图像的能谱范围：不加formvar膜滤片的X光辐射图像光子能量大于70eV，加formvar膜滤片的X光辐射图像光子能量大于150eV，同时还确定出图像各部分的光子能量分布。

There indeed are an abundant amount of anonymous ad hominem attacks from kobe lovers who don't corroborate their opinions, but if you ignore those and look at the rational posts, you'd understand too why the author's piece is also an unsubstantiated, undeveloped, and dishonest analysis- the only difference between the author's article and these anonymous posts you refer to is that the author's is 10 times longer and without the invectives.

这确实有很多匿名的带个人偏好色彩的攻击，这些言论来自科比的拥护者们，他们并不能说清自己的观点，但是如果你跳过这些去看那些理性的发言，你会明白为什么那个作者的文章是如此的五根据，未开化和分析多么不诚实——也许在作者和那些你所说匿名发言的的区别就在于，作者的言论是10倍的长，并且没有恶言。

It is key point to understand how to restore the sporters'energy after they exercise during train seasons.After swimmers took supplement of the beverage compounded taurine designed for swimmers during training,their hemanalysis and kinesiology experiment were carried on. The experiment result testifies swimming sporters' tolerant and kinetic capability had been improved, did not have the overfatigued during the winter training.

运动训练中如何更好地促进运动员机能的恢复是训练中的重要环节，针对游泳运动员的特点，在训练中进行牛磺酸复合功能性饮料的补充，并在补充前后进行有氧功率自行车的运动测试和血样的分析，结果表明运动员有氧耐力水平和运动能力都有一定的提高，冬训期间未出现过度疲劳的现象。

In the present work, based on the mechanism of low-temperature corrosion, an opinion was presented by theoretical analysis and computation, that is the vacuum boiler can not avoid being corroded completely under low temperature, but the corrosion is very weak no matter if the exhaust gas temperature is higher than the flue gas dew point; it was obtained the relationship between the corrosion velocity of metal wall and wall temperature along gas pass of vacuum boiler, and the one between the corrosion velocity of metal wall and wall temperature under the condition that the flue gas temperature is lower than the acid dew point.

本文从锅炉发生低温腐蚀的机理入手，通过理论分析计算并通过实践检验，提出了真空相变锅炉虽然不能完全避免低温腐蚀问题，但不论排烟温度是否高于烟气露点，低温腐蚀的程度都很弱的观点；给出了真空相变锅炉沿烟气流程金属壁面的腐蚀速度与壁面温度的关系曲线，和烟气温度低于酸露点时金属壁面的腐蚀速度与壁面温度的关系曲线；笔者专门从事真空相变锅炉的设计研究已十多年，根据上述观点设计的数百台产品已经过多年实际运行，未发现明显低温腐蚀。

For the purposes of a transportation engineer interested in developing a molecular model of traffic flow in which the human in the vehicle or an individual human-vehicle comprises a unit of analysis, some important performance characteristics can be identified to aid in the formulation, even if a comprehensive transfer function for the driver has not yet been formulated.

为了一 对发展感兴趣的运输工程师一分子的交通流量的模型在交通工具的人或一个别的人-交通工具包含一个单位的分析，一些重要的表现特性可能被识别援助在形成，即使一个包罗万象的移动功能为那驾驶者仍未被制定。

The separation purities by new method were determined and compared with those of some traditional methods by SDS-PAGE gradient electrophoresis.

其次，采用中性蛋白酶、碱性蛋白酶等几种常用的蛋白酶对分离的7S和11S球蛋白进行酶解比较实验，发现在相同条件下，7S比11S酶解后的酸溶多肽得率高，7S比11S相对更容易被酶解；通过扫描电镜和SDS-PAGE电泳分析7S和11S的酶解产物，表明7S和11S分子酶解前后的变化明显，但两种大豆蛋白经酶解作用后，均有相当部分未被酶解的蛋白分子残留在酶解残渣中，而酶解离心后的上清液中则已基本不存在原来的蛋白质大分子。

And study four element in the implementary process of Health Standard for Students" Constitution.The author analyzed the total implemented status through surveying the implemented status of the Students" Constitution Health Standard for Students" Constitution in Yunnan province. And analyzed the cause in unimplemented school: the problem; the management of the Health Standard for Students" Constitution; the matter of the ground, implement and outlay; the knowledge composition and the ability to instruct students of teachers; students" health knowledge and the effects on students of Health Standard for Students" Constitution in implemented school.

通过调查云南省高校大学生体质健康标准的实施情况，分析云南省总的施行情况、对已实施学校推行过程中存在的问题和未实施学校的原因，以及在推行过程中学校对《学生体质健康标准》的管理、所需场地仪器和经费的情况、教师的知识结构与对学生进行指导的能力、学生的体质健康知识以及实施《学生体质健康标准》对学生的作用效果等方面进行研究，着重对施行过程中存在的问题提出相应的对策。

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