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87 个结果
  • 简介:<正>WeareexcitedtoreleasethefirstissueofHighPowerLaserScienceandEngineering(abbreviatedHPLaser)atthebeginningof2013,YearoftheSnakeintheChinesecalendar.Firstofall,Iwouldliketogiveoursincerethankstothosewhohavecontributedtothepublishingofthenewjournal.Sincetheinventionoflaserin1960,therequirementsofscientificresearchhavedriventhedevelopmentofhighpowerlasertechnology.Laseroutputpowercontinuestoincreasedramaticallythroughthedevelopmentoflasertechnology,andmanynewresearchtopicsarebeingdiscoveredandcreated.

  • 标签: abbreviated INVENTION Snake PUBLISHING NEW JOURNAL
NEW
  • 简介:豪华概念触手可及Sunreef210三体船拥有时尚流畅的外部线条,内部生活区面积达到难以置信的950平米,由18个船员操作。主甲板220平米的沙龙区做到高效利用,四个相互独立的区域让客人在欣赏窗外美景色时不被打扰。

  • 标签: 游艇 船舶工程 设计方案 船员
  • 简介:Iwashonoredtobeaskedtowriteaneditorialon’cytoreductivesurgeryusingperitonectomyandvisceralresectionsforperitonealsurfacemalignancy’(1)writtenbyPaulH.Sugarbaker.Astrategicapproachusingperitonectomyandcytoreductivesurgerytotreatperitonealcancershasgraduallyevolvedoverthepast30years

  • 标签: 恶性肿瘤 腹膜 肿瘤细胞 程序 膜表面 领导人
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  • 简介:It’sprobablyfairtosaythatAndyMurray’slyricalprowess,insongterms,isprettylimited.HisguestslotontheBryantwins’(rathercatchy)Autographleftalittletobedesiredbutthatdoesn’tmeansongsaboutAndyMurrayarenotgood.Infact,oneofthemisreallyrathercatchy.

  • 标签: Murray TONGUE DESIRED TWINS REALLY GUEST
  • 简介:Weconsiderforafixedμ,theclassofpolynomialsPn,μ,s:=P(z)=zsanzn-s+n-s∑j=μan-jzn-j-s;1≤μ≤n-sofdegreen,havingallzerosin|z|≤k,k≤1,withs-foldzerosattheorigin.Inthispaper,wehaveobtainedinequalitiesinthereversedirectionfortheaboveclassofpolynomials.Besides,extensionsofsomeTuran-typeinequalitiesforthepolarderivativeofpolynomialshavebeenconsidered.

  • 标签: 空间 多项式 NS NJS 不等式 原点
  • 简介:Thispaperstudiesthetemporalandspatialdistributionofgreatglobalearthquakes(MW≥8.0)since1900.Wecomparethetwoperiodsofupsurgesofgreatearthquakesoccurringinthemiddleoflastcenturyandbeginningofthiscentury.Theformerperiodtookplacebetween1950and1965duringwhich13greatearthquakes(MW≥8.0)occurred,includingthreeeventswithmomentmagnitudegreaterthan9.0.Thelargestmagnitudeinthisperiodreached9.6.Thelatterperiodstartsfromthebeginningofthiscentury.Inlessthan12years,15greatearthquakeshaveattackedtheworldwiththelargestmagnitudebeingMW9.1.Onthebasisofcomparisonbetweenthesetwoupsurgesofglobalearthquakeactivity,weinferthattheongoinghighlevelofearthquakeactivitymaycontinueforanotherfiveyearsorso.Numerousgreatearthquakes(MW≥8.0)andmanylargeearthquakes(MW6.0~7.0)willoccurgloballyinthesefiveyears.Inaddition,thispaperalsodiscussestherelationshipsbetweenearthquakeactivityalongtheSumatrasegmentoftheIndian-AustraliaplateboundaryandthatintheBayankalablockinthemiddleofQinghai-Tibetanplateauaswellasintheblocksofthesouthernplateau.TheresultsindicatethattheQinghai-Tibetanplateau,inparticularitsmiddleandsouthernparts,isalikelyplaceforfutureearthquakesofmagnitudeover7.0.

  • 标签: 全球地震活动 青藏高原中部 全球大地震 IGT 时空分布 全球范围
  • 简介:The’polarcoding’proposedbyDr.Arkancanachievethesymmetriccapacityofbinary-inputdiscretememorylesschannels(B-DMC).ThegeneratormatrixofpolarcodesisGN=BNFnforN=2n,BNwasapermutationmatrix.Inthearticleitwasrealizedwithaninterleaver,sothematrixproductionofGNwasavoided;thenthegeneratormatrixwasjustdeterminedbythematrixFnwhichwasconstructedwiththreesub-matrixesofFn-1andone2N-1orderzeromatrix,itwasdealwithfastHadamardtransform(FHT)algorithm.Thecomplexityofthenewschemewasreducedsharply,andaniterativealgorithmalsocanbeused.TheexampleshowedthatwhenN=8,complexityoftheencodingschemewasjust16whichisobviouslylessthanthatoforiginalencodingscheme36.

  • 标签: 编码方案 极地 生成矩阵 迭代算法 阿达玛变换 记忆能力
  • 简介:忙碌的工作、紧张的生活,让吃饭越来越成为一种形式:而讲究生活品质的“慢食”,却已在我们中间悄然兴起。人们利用休息时间,买来新鲜的蔬菜、鱼、虾,为自己、亲人和朋友做饭。人们一起坐到餐桌前享受晚餐,真地会很美妙√隧食。让我们巩固了感情,也让我们有了放松身心、缓解精神压力的机会。校园慢食活动也让学生们有了了解自然、亲近自然、养成良好生活习惯的机会。

  • 标签: 英语教学 教学方法 阅读教学 课外阅读
  • 简介:Inthispaper,weintroducenewsufficientconditionsforcertainintegraloperatorstobestarlikeandp-valentlystarlikeintheopenunitdisk.

  • 标签: 积分算子 星形 判据 充分条件
  • 简介:Thedatausedintheprocessofknowledgediscoveryoftenincludesnoiseandincompleteinformation.Theboundariesofdifferentclassesofthesedataareblurandunobvious.Whenthesedataareclusteredorclassified,weoftengetthecoveringsinsteadofthepartitions,anditusuallymakesourinformationsysteminsecure.Inthispaper,optimalpartitioningofincompletedataisresearched.Firstly,therelationshipofsetcoverandsetpartitionisdiscussed,andthedistancebetweensetcoverandsetpartitionisdefined.Secondly,theoptimalpartitioningofgivencoverisresearchedbythecombingandpartingmethod,acquiringtheoptimalpartitionfromthreedifferentpartitionssetfamilyisdiscussed.Finally,thecorrespondingoptimalalgorithmisgiven.Therealwirelesssignalsofftencontainalotofnoise,andtherearemanyerrorsinboundarieswhenthesedataisclusteredbasedonthetradionalmethod.Inourexperimant,theproposedmethodimprovescorrectrategreatly,andtheexperimentalresultsdemonstratethemethod’svalidity.

  • 标签: 数据挖掘 信息系统 知识发现 数据集中 集合覆盖 最优算法