简介:Alooplessgraphonnverticesinwhichverticesareconnectedatleastbyaandatmostbybedgesiscalleda(a,b,n)-graph.A(b,b,n)-graphiscalled(b,n)-graphandisdenotedbyKbn(itisacompletegraph),itscomplementbyKbn.Anonincreasingsequencep=(d1,…,dn)ofnonnegativeintegersissaidtobe(a,b,n)graphicifitisrealizablebyan(a,b,n)-graph.Wesayasimplegraphicsequencep=(d1,…,dn)ispotentiallyK4—K2[K2-graphicifithasaarealizationcontaininganK4—K2[K2asasubgraphwhereK4isacompletegraphonfourverticesandK2[K2isasetofindependentedges.Inthispaper,wefindthesmallestdegreesumsuchthateveryn-termgraphicalsequencecontainsK4—K2[K2assubgraph.
简介:<正>3倍光学变焦的500万像素摄像头人脸识别功能宽动态范围优化优点:高档金属材质搭配时尚滑盖设计;拍摄功能强大。弱点:机身比较厚;摄像头没有自拍镜。技术参数网络:四频(GPRS/EDGE,850/900/1800/1900MHz)尺寸:101.5×52×18.8mm重量:129g屏幕:2.4英寸QVGA26万色TFT屏摄像头:500万像素CMOS/氙气闪光灯/3倍光学变焦/连拍铃声:录音铃声/MP3/64和弦电话薄:1000组/来电黑名单10个短信:机身200条/群发20条音频格式:MP3、AAC、AAC+、AAC++、WMA视频格式:3GP、MP4文本浏览:PDF/WORD/EXCEL/PPT/TXT蓝牙:蓝牙v2.0,A2DP蓝牙立体声,蓝牙Pictbridge打印功能USB:2.0WAP:2.0存储卡:microSD,最大支持2GB电池:1000mAh续航:通话时间3.5小时/待机时间250小时
简介:Itisprovedthatisa(Δ+1)-colorablegraph,soarethegraphsG×PnandC×Cn,wherePnandCnarerespectivelythepathandcyclewithnvertices,andΔthemaximumedgedegreeofthegraph.TheexactchromaticnumbersoftheproductgraphsPr1×Pr2×…×PrnandC3k×C2m1×C2m2×…×C2mnarealsopresented.Thusthetltalcoloringconjectureisprovedtobetrueformanyothergraphs.
简介:群对群(G2G)计算是一种基于G2G网络的分布式计算。G2G计算得益于灵活的分群,相同属性或任务的群内计算。本文提出了一个有门户网站结构,基于G2G计算的搜索服务。G2G搜索服务是一个混合搜索系统,既有分布式的搜索服务,又采用了集中式的搜索服务。采用G2G搜索服务的好处之一是,用户既参与了系统的分布式搜索任务,又能向系统请求搜索服务。采用G2G搜索服务的好处之二是,用部分的集中式结构把分散的局域搜索系统关联起来,扩大了系统的搜索效能。
简介:Usingrecursivemethod,thispaperstudiesthequeuesizepropertiesatanyepochn+inGeom/G/1(E,SV)queueingmodelwithfeedbackunderLASDA(latearrivalsystemwithdelayedaccess)setup.Somenewresultsabouttherecursiveexpressionsofqueuesizedistributionatdifferentepoch(n+,n,n-)areobtained.Furthermoretheimportantrelationsbetweenstationaryqueuesizedistributionatdifferentepochsarediscovered.TheresultsaredifferentfromtherelationsgiveninM/G/1queueingsystem.Themodeldiscussedinthispapercanbewidelyappliedinmanykindsofcommunicationsandcomputernetwork.