又及

A little after Noon I found the Sea very calm, and the Tyde ebb'd so far out, that I could come within a Quarter of a Mile of the Ship; and here I found a fresh renewing of my Grief, for I saw evidently, that if we had kept on board, we had been all safe, that is to say, we had all got safe on Shore, and I had not been so miserable as to be left entirely destitute of all Comfort and Company, as I now was; this forc'd Tears from my Eyes again, but as there was little Relief in that, I resolv'd, if possible, to get to the Ship, so I pull'd off my Clothes, for the Weather was hot to Extremity, and took the Water, but when I came to the Ship, my Difficulty was still greater to know how to get on board, for as she lay a ground, and high out of the Water, there was nothing within my Reach to lay hold of; I swam round her twice, and the second Time I spy'd a small Piece of a Rope, which I wonder'd I did not see at first, hang down by the Fore-Chains so low, as that with great Difficulty I got hold of it, and by the help of that Rope, got up into the Forecastle of the Ship; here I found that the Ship was bulg'd, and had a great deal of Water in her Hold, but that she lay so on the Side of a Bank of hard Sand, or rather Earth, that her Stern lay lifted up upon the Bank, and her Head low almost to the Water; by this Means all her Quarter was free, and all that was in that Part was dry; for you may be sure my first Work was to search and to see what was spoil'd and what was free; and first I found that all the Ship's Provisions were dry and untouch'd by the Water, and being very well dispos'd to eat, I went to the Bread-room and fill'd my Pockets with Bisket, and eat it as I went about other things, for I had no time to lose; I also found some Rum in the great Cabbin, of which I took a large Dram, and which I had indeed need enough of to spirit me for what was before me: Now I wanted nothing but a Boat to furnish my self with many things which I forsaw would be very necessary to me.

午后不久，海面风平浪静，潮水也已远远退去。我只要走下海岸，泅上几十米，即可到达大船。这时，我心里不禁又难过起来。因为我想到，倘若昨天我们全船的人不下小艇，仍然留在大船上，大家必定会平安无事。这时就可安抵陆地；我也不会像现在这样，孤苦伶仃孑然一身了。而现在，我既无乐趣，又无伴侣。想到这里，我忍不住流下泪来。可是，现在悲伤于事无济，我即决定只要可能就先上船去。当时，天气炎热，我便脱掉衣服，跳下水去。可是，当我泅到船边时，却没法上去，因为船已搁浅，故离水面很高；我两臂所及，没有任何可以抓住的东西。我绕船游了两圈，忽然发现一根很短的绳子。我惊异自己先前竟没有看见这根绳子。那绳子从船头上挂下来，绳头接近水面；我毫不费力地抓住绳子往上攀登，进入了船上的前舱。上去后发现船已漏水，舱底进满了水。因为船搁浅在一片坚硬的沙滩上，船尾上翘，船头几乎都浸在水里，所以船的后半截没有进水。可以想像，我急于要查看一下哪些东西已损坏，哪些东西还完好无损。首先，我发现船上的粮食都还干燥无恙。这时，我当然先要吃些东西，就走到面包房去，把饼干装满了自己的衣袋，同时边吃边干其他活儿，因为我必须抓紧时间才行。我又在大舱里找到了一些甘蔗酒，就喝了一大杯。此时此刻，我极需喝点酒提提神。我这时只想有一只小船，把我认为将来需要的东西，统统运到岸上去。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

In particular by the Shanxi and Hebei Road Bangzi Bangzi impact, draws further plate change Bangzi opera singing and Banhu, sanxian musical accompaniment, etc., and gradually create a unique set of system board concert cavity, with the exception of head and, second, and third, the guide plate, referral board, roll white and coloratura singing, but also created a folk system "training transfer" singing.

特别是受到山西北路梆子及河北梆子的影响后，又进一步吸取了梆子腔板式变化的唱腔及板胡、三弦等伴奏乐器，逐步创造出独具特色的成套的板腔式演唱体系，除有头性、二性、三性、导板、介板、滚白及花腔唱法外，还创造了属民歌体系的"训调"唱腔。

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。

On the basis of dual porosity theory,the well test interpretation model which considers the variation of krg versus the volume of liquid is also established and resolved by the implicit method numerically.

摘要通过分析凝析气藏的相图，建立了凝析液饱和度随压力降的变化规律，并回归得出了相应的公式；同时通过对气体压缩因子、黏度随压力、温度的变化，建立了这些参数和无因次压力的关系；在双重介质地层假设的基础上，建立了在试井过程中凝析气相对渗透率随凝析液饱和度变化的凝析气藏试井解释数学模型，采用隐式迭代的方法进行了求解并进行了参数敏感性分析；结果表明：凝析液的饱和度对凝析气藏试井的压力及压力导数曲线有着很大的影响，早期由于凝析液的析出，阻碍了气藏的流动，导致压力及压力导数曲线上升；在凝析液饱和度达到峰值之后，随着凝析液的挥发，凝析气的相对渗透率逐渐恢复，压力及压力导数曲线又回归到正常的径向流位置；由于裂缝和基岩之间的压力差，使得裂缝弹性储容比在测试过程中发生变化，进而影响了压力及压力导数；窜流系数和裂缝弹性储容比的变化决定了窜流段发生的早晚和程度；而基岩中气体黏度的变化使得窜流的发生稍微滞后。

Comparing with Galaxy, M31 has much lower gas and SFR profiles, but their total dynamic: mass are comparable. That means M31 needs faster star formation rate and infall rate (namely shorter infall time scale) in order to consume more gas . However, the low nietallicity and flat abundance gradient require lower star formation efficiency, and few metal poor stars means the infall time scale can not be very short.

与银河系相比，M31有着较低的气体轮廓及SFR轮廓，但其动力学总质量与银河系相当，这便要求有较大的SFR及较快的下落速度来消耗更多的气体；然而，较低的金属丰度及丰度梯度意味着SFE不能过高，贫金属星很少又暗示着下落时标不能很短。

Objective To explore livin, MTA1 and the caspase3 protein expression, their correlation and clinical pathology in colon cancer Methods The expressions of livin, MTA1 and caspase3 protein in 88 cases of colon cancer were detected by immunohistochemistry stainingResults Livin, caspase3 protein and MTA1 positive expression rates in colon cancer tissues were more than those in tissues beside the cancer Furthermore there were obvious relevance between livin protein, MTA1 positive expression rate and degree of histodifferentiation and lymph node metabasis and between caspase3 protein positive expression rate and degree of histodifferentiation of colon cancer Caspase3 protein expression had prominent inverse correlation with the livin expressionConclusions ①Over expression of livin having inhibtion on colon cancer is one of important factors of colon carcinogenesis ②Caspase3 protein expression in colon cancer tissues is inhibited to less and has prominent inverse correlation with livin expression Accordingly, suppressing caspase3 protein activity is one of channels, by which livin promotes colon carcinogenesis ③MTA1 plays the important role in histodifferentiation degree and lymph node metastasis of colon cancer

采用免疫组织化学染色方法检测88例结肠癌组织中Livin，Caspase3 及MTA1的表达情况。结果（1）结肠癌组织中Livin的阳性表达率显著高于癌旁组织，且Livin的表达与结肠癌的组织分化程度及淋巴结转移程度显著相关。（2）结肠癌组织中Caspase3蛋白的阳性表达率显著高于癌旁组织，且Caspase3蛋白的表达与结肠癌的组织分化程度显著相关。（3）结肠癌组织中MTA1的阳性表达率显著高于癌旁组织，且MTA1的表达与结肠癌的组织分化程度及淋巴结转移程度显著相关。（4）Caspase3蛋白的表达又与Livin的表达呈显著负相关。结论（1）Livin在结肠癌组织中过表达，它可能是促进结肠癌发生的重要因素之一。（2）Caspase3蛋白在结肠癌组织中表达被抑制而降低，且与Livin的表达呈负相关。因此，抑制Caspase3蛋白的活性是Livin促进结肠癌发生的途径之一。（3）MTA1对结肠癌的组织分化及淋巴转移发挥重要作用。

We report a 67-year-old female admitted to our hospital with intermittent fever and upper abdominal pain. She had undergone cholecystectomy and choledocholithotomy 20 years previously. More recently, she had recurrent intrahepatic stones and underwent repeated choledocoscopic lithotiomy and endoscopic lithotripsy.

我们报告一位六十七岁女性因间歇性的发烧及上腹痛而住院，患者曾因胆及胆道结石在二十年前接受了胆囊切除术、胆道取石术，近几年又因复发的瞻道结石及胆管炎接受多次的胆道镜取石术及内视镜取石术。

PH, temperature, amount and adding time of papain, autolysis duration could affect autolysis with external papain to some extent, and the optimum technology conditions were that papain was added by 10×10~4u per kg autolyzed solution at 6 hours after autolysis beginning, pH was adjusted to 6.0, then autolyzed at 55℃ for 26 hours. Suitable adding amount of yeast extract was 0.4 percent of autolyzed solution.

自溶过程中RNA的降解自溶过程中RNA降解的研究表明，在酵母自溶过程中，RNA降解率先缓慢增加，之后迅速上升，最后逐步趋于平衡；而上清液5'-GMP及5'-IMP总量则是先缓慢增加，迅速上升后则又开始下降；pH和温度对于RNA的降解有较大的影响：高压均质及NaCl的添加均能加速RNA的降解，提高上清液5'-GMP及5'-IMP总量，并且可提前上清液5'-GMP及5'-IMP总量开始下降的时间。3。

On this dissertation it is also definitely pointed that the key to research on "fantasy or trueness" virtuosity-perspective of copy-writing planning system is to solve problem about mode of thought, and presented the integrated thinking way of copy-writing planning'research of this dissertation, that is, from the point of view of copywriting integrated planning mind admitting a systemic "tripartite" viewpoint of advertising copy-writing planning system process which is thought of being "disparted" into mastermind, idea-making and expressive-technique, resolving the "fantasy or trueness -conflict" to bring to a successful conclusion of "fantasy or trueness" relation in the copywriting expression, and establishing a "dialectic virtuosity angle" of view- a "fantasy or trueness" virtuosity-perspective on copy-writing planning systemic research.

文案策划系统过程由创意策划、创意生成及创意表现三阶段组成，前两阶段属于文案策划系统研究思维方式层面的研究范围，后一阶段则属于操作方式层面的研究范围，辩证法矛盾普遍性原理决定了虚实矛盾存在于上述的一切过程及所有阶段之中，同时也存在于这个过程的结果之中。辩证法矛盾普遍性原理决定了这种特定的虚实矛盾的非对抗性质，即：虚实相生，虚以实为基础，又为实提供发展空间；虚实互为消长，统一于一体，相互作用，为广告目标及受众需要谋求虚实间最完美的比例关系匹配；这个过程中体现出&去伪存真&对&真善美&艺术境界的追求；在这个过程的结果中，则体现出文稿在视觉传达、文字的信息内涵及语义的情感诉求三个层面所追求的文稿在虚实方面的整体艺术美感。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。