链间的
- 与 链间的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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As a private mobile communication system, The digital trunkingmobile communication system was boomed in 1990's, and before this, the appliedprivate mobile communication systems in market are almost the analog systemwith analog voice and digital signalling. And there are no data referring to thesystem design and parameters chosen. It includes the wireless channel accessalgorithm of the mobile terminals, single base station capacity in large regional networks, link designing schemes between the switching control center and basestation as well as the study of the service quality for the multiple traffic. Theseindispensable parameters in design a digital trunking communication system arestudied in this dissertation and some instructive achievements can be got. To provethe correction of the theoretical study, the result was tested with the popularsystem of pan-European digital trunking communication system.
数字集群移动通信系统是九十年代中、后期兴起的专用移动通信系统的一种新体制,在此之前国际、国内市场使用的都是数字信令、模拟话音集群移动通信系统其涉及领域是模拟体制,对数字集群的系统设计的有关参数、方法等的选用及其性能表现并无成熟的文献可供参考,如移动终端的无线信道接入算法、大区组网单基站系统的容量、基站和交换控制中心间的链路设计和多业务种类的服务质量等都是数字集群基站子系统进行设计和开发必须解决的关键技术。
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For the problem that the suppression of co-channel interference and suppression of noise can't be balanced in signal-to-jamming and noise ratio maximization method for the linear precoding of multiuser multiple-input multiple-output downlink systems, an improved scheme that the term of noise variance is modified as a piecewise linear function is proposed, in which the balance between suppression of co-channel interference and suppression of noise can still be maintained even when the noise variance is a small value through piecewise modifying the term of noise variance, and thus the bit error rate and capacity of the systems are further improved.
针对多用户多输入多输出系统下行链路线性预编码的信干噪比最大化方法中,共信道干扰抑制和噪声抑制不能有效平衡的问题,提出将其中的噪声方差项修正为以噪声方差为变量的分段线性函数的改进方案。该方案通过对噪声方差项的分段修正,在噪声方差的值较小时依然能够保持共信道干扰抑制和噪声抑制间的平衡,从而使系统的误比特率性能和容量得到进一步提高。
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Secondly, by establishing a discrete time Markov model with spatial reuse for a MANET, we analyze the performance of the network under the AODV routing protocol. The average route length and the probability to communicate within a limited hop distance are obtained. Several performance parameters of the route discovery and route maintain process are analytically studied, such as the probability generating function and the expectation of the flooding distabce. the probability that a route is discovered by a query packet with a "hop limit", the probability that a request packet finds a valid route, the average time needed to discover a valid route and the cost to successfully route a data packet to its destination. Furthermore, we present a concrete example based on the transmitter characteristic of directional antennas and obtain the corresponding results.
建立了移动自组网络空间可重用的离散时间马氏链模型,得到了AODV路由协议下网络任意两节点间的平均路由长度、在指定"跳限"要求下通信的概率;对随选型路由协议下路由发现和路由维护过程中若干网络性能参数进行了解析分析,如网络中任意两节点问的泛洪距离的概率母函数及其期望、限定泛洪步数时成功寻路的概率、发现一条有效路由的平均时间、成功路由的代价等;并基于定向天线的发射特征给出了一个具体实例,分析计算了相应的网络性能参数。
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This thesis explains basic financial innovation theorems including "circumventive innovation theorem","transaction cost innovation theorem" and " value chain theory ", etc and the relationship between these theorems and Internet banking; on the basis of analyzing the developing history and current situation of Internet banking business in foreign countries and in china, it points out the major problems existing in our Internet banking innovation, summarizes the experiences in foreign Internet banking which can be referential to our commercial banks, and gets to the conclusion that meeting customer's demands and keeping, maintaining, utilizing the customer relationship effectively are the key points in Internet banking innovation.
阐释了&规避管制理论&、&交易成本理论&、&价值链理论&等金融创新理论的基本内容及其与网络银行业务创新的关系;通过对国内外网络银行业务功能发展历程的简要回顾和对其业务创新现状的介绍,总结了国外发展网络银行业务过程中可供我国商业银行借鉴的经验,探讨了我国网络银行业务创新存在的主要问题,并认为满足客户需求,保持、维护并有效利用银行与客户间的关系是进行网络银行业务创新的关键所在。
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FT-IR spectra shows that the polyaniline is present primarily in the emeraldine salt form, and the polymeric chains interact with inorganic framework, most likely via V=O…HN hydrogen bonding. XRD,TG and DSC indicate that the lamellar structure of the V_2O_5 is preserved, PAn chains eliminate water form the interlamellar region and are partially inserted between the layers, and exist with extended-chain conformation owing to the confined environment.Electrochemical investigation in the range of 1.8~3.8V vs.
红外光谱表明复合物中PAn主要以导电聚苯胺盐的形式存在,PAn链与V_2O_5晶格之间可能形成了V=O…HN氢键。X射线衍射、热重和差示扫描量热证实了PAn/V_2O_5复合物保持了较规整的层间排列结构,PAn取代了V_2O_5干凝胶中的层间水而部分嵌入其片层间,由于受空间的限制,PAn分子链以比较伸展的链构象存在。
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To research the nano-scale thin film lubrication which consists widely in micro electro mechanical systems and precision instruments,firstly,an interaction model of long chain molecules hexadecane ,used as lubrication,was built.
针对广泛存在于微机电系统和精密机械中的纳米薄膜润滑问题,首先建立了作为润滑剂的正十六烷长链分子间的作用力模型;接着运用分子动力学模拟的方法得到了润滑剂在6种不同的剪切速率下的应力、速度和温度分布;研究了摩擦过程中特殊的物理现象。
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The effect and its mechanism of temperature during grain filling on rice quality were investigated by using 4 eary-indica rice cultivars with different quality and amylose content. The plants at filling stage were transferred into two phytotrons (Model PGV-36, CONVIRON, Canada), which were set two mean daily air temperatures, i.e. 22℃, optimum temperature regime and 32℃, designed as high temperature regime. The differences in quality properties and starch characteristics of rice between two temperature regimes were determined, and effects of temperature at grain-filling stage on starch biosynthesis in developing rice grains were also analyzed.
本研究以田间异季栽培试验为基础,利用人工气候箱(PGV-36型,CONVIRON)设高温(日均温度32℃)和适温(日均温度22℃)两个典型温度处理,在日温差、光照、相对湿度等因素完全一致的条件下,系统地研究了水稻灌浆结实期不同温度对早籼稻米淀粉的DSC热力学特性、RVA粘滞性、晶体结构、淀粉链长分布等理化指标的影响及其品种类型间的差异,并分析了水稻籽粒淀粉合成代谢过程中几个关键酶的温度效应特征及其与稻米淀粉合成和积累的关系。
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Two outstanding fusants SR-7 and SR-T19 were chose out in the fusion group 90-11×FR-008, the former produces not only antibiotics the parents produced but also a new antibiotic effective gainst a wide range of both gram positive and negative bacteria, which the parents could not produce, and its product of the 37℃ fermentation was very effective against the cotton seedling damping off caused by Rhizoctonia sonali while product of the 26℃ was effective agaist the bacterial rots of turnip and Chinese cabbage; the latter have a much stronger activity against a wide range of fungi and yeasts than the parents.
在90-11×FR-008融合组合中,筛选获得2个优良融合子SR-7和SR-T19,前者除产生亲本产生的抗生素外,还产生亲本不产生的一种新的具有广谱抗细菌活性的碱性水溶性抗生素,防病试验表明,其37℃发酵产物对棉花苗期立枯病具有良好的防治效果,28℃发酵产物对萝卜和大白菜具有明显的防腐作用;后者与亲本FR-008的抗菌谱完全一致,但其活性强度都超过了FR-008;采用RAPD分子标记技术检测了SR-7和SR-T19与亲本的同源性及彼此间的差异,从而首次直接从DNA分子水平上验证了链霉菌的原生质体融合子及其遗传重组的多样性。
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According with the development of modern telecom technology and computer science, the competition between any enterprises are transfer from the single entity to the supply chain efficiency.
现代通讯与信息技术的发展推动了经济全球化的进程,加速了产业进化的速度,企业间的竞争已经变成了核心企业供应链之间的竞争。
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This paper, by mastered insertion and deletion of node algorithm in double circle linked list, goes a step further to understand the insertion and deletion of station , achieving mastery through a comprehensive study of the subject so that abstract problem becomes easy and simple.
通过数据结构的双向循环链表的插入和删除算法,进一步理解令牌总线网的站点插入和删除,把学科间的内容相互衔接起来,使问题更加简单化。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。