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Firstly, the thesis introduced the development of VOD, the background and meaning of the program, then the author introduced the associated technology, mainly including the feature of multimedia, video compression technology and the protocols SCTP and RTP. Considering the ambulant of host , fluctuation of bandwidth,high error rate data in wireless networks ,the author proposed some QoS strategy in the wireless networks such as RTP/SCTP protocol stack , connection control of the server, two buffers in the client end point.,TFC congestion control algorithms ,etc. Based these strategies, the team members gives the software and hardware solution of the wireless video-on-demand system and gives the main modules design of the software system. The system adopted the C/S structure including two parts: server and client ,using the Mpeg-2 which is apporiate for networks as the supported format. The thesis emphatically researches on the video-serving module of the server and the sink module, player module of client.

本文首先介绍了视频点播系统的发展现状、课题的研究背景和意义；接着对课题的相关技术进行概述主要包括了多媒体特点，压缩技术，传输协议SCTP以及RTP；针对无线环境的节点移动性，带宽波动性，数据错误率高等三大特点，作者研究设计了无线环境下的QoS策略：RTP/SCTP协议栈，服务器准入控制机制，客户端双缓冲区，TFRC拥塞控制机制等；在这些策略的基础上设计了系统的软硬件解决方案，并对软件体系结构的主要模块进行了设计，整个视频点播系统采用C/S结构，由服务器，客户端2个部分组成，使用适合网络传输的流媒体格式Mpeg-2作为系统支持的格式，文中重点研究了服务器的视频服务模块以及客户端的接收模块和播放器模块，并利用线程池技术对系统进行实现。

Exogen ous c-fos antibody could decrease the area density ratio of bFGF mRNA to 4.60± 0.86 at the first day post-burn. The bFGF mRNA expression was increased little without significant difference after exogenous treatment with bFGF. Treatment of c-fos antibody could significantly decrease the expression of PCNA. Through th e re-epithelial process was almost completed at 14th d post-burn, the thicknes s of basal cells was thinner than that in controls.

给予外源性c-fos抗体能抑制bFG F mRNA的表达，伤后1 d其mRNA表达的面密度降为4.60±0.86，伤后14 d创面皮肤虽然基本完成了再上皮化过程，但其基底细胞排列成薄层细胞，PCNA数密度明显低于对照组，同时皮肤全层变薄。

The image showed that the ratio of raw material of RPC and particle distribution accorded with maximum packing density theory, and the porosity of accumulation was the least. The DSC showed the reaction rate of RPC was very fast and main hydration process focused in shorter time; SEM and X-ray showed that structure of the harden body of RPC was much denser, which mainly composed of some abnormal flat grains that got maximum packing density, and hydration products were mostly composed of Ⅲ type C-SH gel and a small amount of Ca2 and no AFt crystal.

由图象分析可知，即C原材料的比例及颗粒度符合密实堆积原理，堆积物的孔隙率达到最小；差示扫描量热分析表明，RPC的水化反应速度很快，主要的水化过程集中在较短时间内；扫描电镜及X衍射试验表明，RPC硬化体的结构非常致密，主要由一些不规则状的扁平粒子紧密堆积在一起，水化产物主要是Ⅲ型C-S-H， Ca2晶体的量稀少且没有钙矶石。

Producing PHAs,and then were orientationally inserted into a prokaryotic expression vector pBV220. By analyzing the bioactibity and function of their products, the biological function of phaA, phaB and phaC was confirmed. These have been done in our laboratory. To make better use of the three genes by plant bioreactor, two groups of different plant expression vectors that can be used to produce PHAs in different plants were constructed, and the transformation of PHA in Oxalis triangnlaris has been preliminarily reseached.The following is the main results:Three plant expression vectors pBI121-A,pBI121-B and ubquiting-C, which can be used to be transformed into Oxalis triangularis were respectively constructed by using the phaA, phaB and phaC.

菌株的亚克隆基因组片段中，分离出phaA、phaB和phaC三个基因片段，定向克隆至原核表达载体pBV220，通过对其生物活性与功能分析，确证了基因phaA、phaB和phaC的生物学功能；为了通过植物生物反应器对这三个基因进一步研究利用，本实验利用这三个基因构建了两组可用于不同植物生产PHA的真核表达载体，并对紫叶酢浆草进行PHA基因遗传转化的初步研究，获得主要结果如下：利用克隆的phaA、phaB、phaC三个基因分别构建了可用于转化紫叶酢浆草表达载体pBI121-A、pBI121-B、uBquiting-C；可用于玉米转化的种子特异性表达载体p7S-A、pBI121-S-B、uBquiting-C。

The expression of C-myc is widely high in Rhabdomyosarcoma of female genital system, and the high expression has relationship with tumor＇s histological grade and prognosis.

结论C-myc在横纹肌肉瘤中普遍高表达，并与肿瘤组织学分级和预后相关；在横纹肌肉瘤中，C-myc的表达可能不依赖Ras-MAPK途径调控。

The peak value of head acceleration and encephalic s tress of Group C was higher than that of Group A and Group B.

兔伤后6 h血清中LPO和SOD值C组均显著高于A、B组（P0.05），而NO值C组显著低于A、B组（P.05）。

During the time he searched for comets, especially in the early and middle periods, Zhou found 20 comets independently and observed many known comets, despite having little access to comet ephemerides (A'lashankou, Bole is a remote place where transportation and communication are difficult). On 1985 Oct. 17, he independently discovered the comet C/1985 R1, and this achievement was honored by the Purple Mountain Observatory as the first Chinese amateur finding since the founding of the People's Republic of China.

这期间，特别是在他的寻彗早、中期，在没有任何有关彗星信息的情况下（阿拉山口，博乐是个交通，通讯不畅的地方），周兴明先生独立找到20颗彗星和观测了许多已知的彗星。1985年10月17日他独立找到的彗星C/19851(C/1985R1， Comet Hartley-Good)被我国紫金山天文台的专家誉为&新中国成立后的第一个业余发现&。

The characteristic compositions of the stable isotopic and the fluid inclusions in Maoping mineral district show that the main sources of Pb origin the Upper Earths Crust, partly froin orogenetic belt and/or Emeishan basalt; the S isotopic composition hints sulfur sources from the seawater; The D and O isotopic compositions show that they emerge from the compound results of the magma water, metamorphic water, hosted water and rain water; the origination of the C isotopic shows that C resource strata.

脉石矿物D、O同位素组成代表了岩浆水、变质水、建造水及大气降水混合作用的结果；C同位素组成则反映来自受热液改造的含有机质的地层，说明地层受成矿流体溶解、淋滤、萃取而提供了部分成矿物质和储矿空间。

Palenque's cutting technology to retain the 95% of the corn germ, canned and vacuum high temperature of 120 degrees Pago 400 high-pressure sterilization equipment is locked in a germ-Gan-C, vitamins C and E, and other micro-nutrients, Enhance human metabolism, regulating the nervous system function, so that the delicate skin smooth and suppression, such as the role of delay lines.

帕伦克的切割技术保留了95%的玉米胚芽，真空罐装和120度高温400帕高压杀菌设备锁住了胚芽中的谷肽甘胱，维他命E和C等微量营养元素，有增强人体新陈代谢，调节神经系统功能，使皮肤细嫩光滑，抑制，延缓皱纹等作用。

"The line separating investment and speculation, which is never bright and clear, becomes blurred still further when most market participants have recently enjoyed triumphs. Nothing sedates rationality like large doses of effortless money. After a heady experience of that kind, normally sensible people drift into behavior akin to that of Cinderella at the ball. They know that overstaying the festivities - that is, continuing to speculate in companies that have gigantic valuations relative to the cash they are likely to generate in the future - will eventually bring on pumpkins and mice. But they nevertheless hate to miss a single minute of what is one helluva party. Therefore, the giddy participants all plan to leave just seconds before midnight. There's a problem, though: They are dancing in a room in which the clocks have no hands."

C n！ h9 u5 O C： C昆山，bbs，论坛，昆山BBS，昆山论坛，kb，kbcool 投资与投机之间永远是一线之隔，尤其是当所有市场的参与者都沉浸在欢愉的气氛当中时更是如此，再也没有比大笔不劳而获的金钱更让人失去理性，在经历过这类经验之后，再正常的人也会像参加舞会的灰姑娘一样被冲昏了头，他们明知在舞会中多待一会也就是继续将大笔的资金投入到投机的活动之上，南瓜马车与老鼠驾驶现出原形的机率就越高，但他们还是舍不得错过这场盛大舞会的任何一分钟，所有人都打算继续待到最后一刻才离开，但问题是这场舞会中的时钟根本就没有指针！

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。