查询词典 backbone

To solve this problem, based on the concept of graph theory we give a few models and arithmetic designs of virtual backbone in the environment of different application, and propose the corresponding routing mechanism with these virtual backbones. The major achievements are outlined as follows:The state of host's power or the time of host's online plays an important role in keeping stability of a virtual backbone. With a view to this feature, the paper introduces a simple and efficient heuristic algorithm for calculating the virtual backbone by seeking a minimum connected dominating set with maximal weight. The maximality of the weight-based choice of backbone nodes guarantees that the most suitable nodes have been chosen for the role of backbone nodes so that they can properly coordinate all the other nodes and keep stability of the virtual backbone in the network.

为了解决这个问题，本文利用网络图论中的一些理论，在不同的应用环境下给出几种虚拟骨干网的模型、构建及基于稳定性和节能的算法设计，并针对这些骨干网提出相应的分层路由机制，主要研究内容和贡献如下：考虑到主机的功率大小和在线时间长短对虚拟骨干中心的相对稳固性的影响，提出用基于极大权的最小连通支配集模拟虚拟骨干网；并给出其数学模型和相应的启发式算法，确保了性能强的主机担任骨干节点；通过优化规则确保骨干网的极小性，有效地减小了控制分组转发开销；最后进行了仿真验证。

The minimality of the virtual backbone is assured by designing optimization algorithm. As a result, it can effectively decrease the overhead of control packets dissemination. Simulation resluts show the correctness and the ability of self- renew.Considering the characteristic of fast-moving in wireless ad hoc networks, we construct a virtual backbone with a independent dominating set. This method can avoid sustaining connectivity between backbone nodes and the bakebone network can be rapidly reconstructed as topology change.

对规模较大、移动较频繁的ad hoc网络，用独立支配集构建虚拟骨干网，克服了骨干节点之间必须维护连通性的问题，使得拓扑变化较快时骨干网的重构能快速实现；采用动态按需路由机制，解决了骨干节点要维护路由表的问题；还利用极大独立集的求解得到极小独立支配集；并通过仿真测试了算法的正确性及自恢复能力。

A series of novel chiral aminophosphine ligands with binaphthyl backbone and partially reduced binaphthyl backbone were synthesized from optically pure NOBIN and H〓-NOBIN respectively. The effects of binaphthyl backbone and substitutes at the phosphorous atom on Pd (0)-catalyzed allylation of racemic 1, 3-dipheylprop-2-en-1-yl acetate with dimethyl malonate were systematically investigated.

从NOBIN出发合成了一系列膦上含有不同取代基的氮膦配体MAPs以及含有被部分还原的联萘骨架的氮膦配体H〓-MAPs，将此两类配体运用于钯催化的乙酸1，3-二苯基烯丙基酯与丙二酸二甲酯的反应中，考查了膦上取代基和配体骨架对反应的影响。

All these results indicate that the DNA variation process during the occurring process of adenocarcinoma may be: the stable DNA phosphate backbone in normal gastric mucosa change into unstable DNA phosphate backbone in intestinal metaplasia issue under affecting of pathogenic factors, and finally, DNA phosphate backbone is broken and re-forms a double stabilized phosphate backbones, which causes the occurring of adenocarcinoma.

这些结果提示胃癌的发生过程中DNA结构变化过程可能是：胃粘膜正常组织具有稳定的DNA磷酸骨架，在致病因素作用下发展为具有不稳定磷酸骨架DNA的肠化组织，最后组织DNA磷酸骨架断裂并重新形成稳定的DNA磷酸骨架，致胃癌发生。

A method of producing a highly stable packaging substrate in which are provided a first precursor having a first backbone and a first ethynyl group, and a second precursor having a second backbone and a second ethynyl group.

一种生产高度稳定的组装基片的方法，在这种方法中制备具有第一种主链和第一个乙炔基的第一种母体，和具有第二种主链和第二个乙炔基的第二种母体。

The first ethynyl group is reacted with the first reactive group in a first carbon-carbon bond formation reaction and the second ethynyl group is reacted with the second reactive group in a second carbon-carbon bond formation reaction to crosslink the first backbone with the second backbone, thereby forming the packaging substrate.

在第一个碳－碳键生成反应中，使第一个乙炔基与第一个反应性基反应，在第二个碳－碳键生成反应中，使第二个乙炔基与第二个反应性基反应，将第一种主链与第二种主链交联，从而制成组装基片。

Article 14 In the interconnection between internet backbone networks, the index adopted in the network time delay service grades is the average value of the round-trip delay time from the interconnection point to the network backbone node that participates in the interconnection.

第十四条互联网骨干网间互联中，网络时延服务等级采用的指标是从互联点到达参与互联的网络骨干节点间的往返时延平均值。

The skitter data provided by CAIDA was analyzed as a measurement sample. For the China Telecom's backbone network Chinanet, the integrity ratio of the backbone links measured by skitter is no more than 40%.

以CAIDA组织提供的skitter数据作为测量样本进行了分析，实验表明对中国电信骨干网Chinanet而言，skitter测量到的骨干链路完整性其近似上限为40%。

During the eleventh Five-Year Plan period from 2006-2010, Shanxi will strain every nerve to restructure and improve traditional backbone industries and cultivate new backbone industries on the occasion of the country's implementation of the strategy to vigorously develop the central region and try to build itself into the country's important new energy and industry base.

" 十一五"时期，山西省将抓住国家实施中部崛起战略的机遇，加快改造提升传统支柱产业，加快培育新的支柱产业，把山西建设成为国家最重要的新型能源和工业基地。

Epik High《epilogue》《over》 You got so much to prove hopin' they approve The only thing that's true is all you ever do is do You're movin' shoe to shoe but you're not goin' you stop growin' the moment that you stay at the top The only way is to drop free-falin' down the stairs that you climbed up lined up to freely mount the air But you dare not airdrop tired up like a hairknot hikin' down without a chance of steppin' on a fair rock And so you stand still in a stand still Hands still buildin' castles on a sandhill Man chill is what your friends say but you're not hearin' what little men say Anyway Keep on goin' and taste the stars Keep on growin' and raise the bar You're livin life for the A's down to the Z's After the hill you've got a mountain to seize You are an overacheiver do what it takes till it takes everything you are You are an overacheiver do what it takes till it takes everything you are Who can tell Your living in an organized hell The mansion of your mind just an oversized cell The pressure everything is done to a measure In the sea of competition sunk like a treasure Like a feather fallin' slow spralin' to the floor Strung up like a broken violin to your course Opportunity is knockin' at your door but you never left a welcome mat (It doesn't matter anymore) Or anyhow but you're too late to turn back Fate pushin' you into the wall like a thumbtack Ain't no comebacks in this game of life Roll the dice again Roll it once never twice Keep on goin' and taste the stars keep on growin' and raise the bar You're livin' life for the A's down to the Z's After one drop you've got a fountain to seize You are an overacheiver do what it takes till it takes everything you are You are an overacheiver do what it takes till it takes everything you are You are an overacheiver do what it takes till it takes everything you are Want a break from the world but the world wanna break you The weight makes your backbone curl up and ache you You are an overacheiver do what it takes till it takes everything you are Want a break from the world but the world wanna break you The weight makes your backbone curl up and ache you

登录 |《跋》Epik高《在》你有如此多的证明 hopin '他们批准只有一件事，是真实的你满脑子都是做是什么你的鞋，准予鞋但你不是要你停止growin ''那一刻你呆在上面惟一的办法就是下降 free-falin"下楼梯，你爬了上去自由转会到山的空气但你不敢airdrop累了，就像一个hairknot "没机会 steppin的一个公平的岩石和你伫立于一个静止 buildin手依然在sandhill的城堡你的朋友是什么人寒意但是你不hearin'小男人说无论如何，味道传来的持续的星星继续growin '和酒吧你在生活的一个能Z的你已经得到了山之后，一座山要抓住你是一个overacheiver 做任何事，直到你是什么你是一个overacheiver 做任何事，直到你是什么谁能告诉你的生活在一个有组织的地狱大厦的头脑只是一个超大的细胞所有的压力，对测量在大海中沉没宝藏。像竞争像羽毛的慢spralin因为"到地板上像破碎悬挂的小提琴你的课程机会是knockin '来到你的门前但你从未离开过一个欢迎仪式。无论如何，但你还是太迟了回去"你pushin命运像个图钉墙不是在这场比赛复出的生活滚动骰子滚它又从不两次不断传来的味道和天上的星星继续growin '和酒吧你推荐的生活为一个能Z的你已经得到了一滴后一个喷泉扣押你是一个overacheiver 做任何事，直到你是什么你是一个overacheiver 做任何事，直到你是什么你是一个overacheiver 做任何事，直到你是什么想一下这个世界但是世界想要打破你让你的体重骨干蜷缩和疼痛你是一个overacheiver 做任何事，直到你是什么想一下这个世界但是世界想要打破你让你的体重骨干蜷缩和疼痛

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48