简介:Inordertoovercomethepoorlocalsearchabilityofgeneticalgorithm,resultinginthebasicgeneticalgorithmistime-consuming,andlowsearchabilityinthelateevolutionary,weusethegraycodinginsteadofbinarycodingatthebeginningofthecoding;weusemulti-pointcrossovertoreplacetheoriginalsingle-pointcrossoveroperation.Finally,theexperimentshowsthattheimprovedgeneticalgorithmnotonlyhasastrongsearchcapability,butalsothestabilityhasbeeneffectivelyimproved.
简介:摘要院劳务派遣为用人单位摆脱了繁杂的事务负担,帮助用人单位规避在劳动保障管理以及劳动争议等方面的风险和责任。但随着劳务派遣用工比例的上升及用工范围的扩大,劳务公司、派遣员工及用人单位之间的关系也变得愈加复杂,劳动纠纷及维权投诉也越来越多。作为企业,如何不断提高派遣员工的归属感、幸福感和满足感也成为了一个社会问题。
简介:摘要院新的市场经济条件下,企业要做大做强、生存发展,就需要突破旧的思维瓶颈,坚持科学发展的道路,才能实现和谐企业建设的目标。实现这一目标离不开“创新”。本文以山东梁邹矿业集团为例,简要阐述企业如何实现科学发展的目标。
简介:<正>Withitsrise,Chinaattractedmoreandmoreattentionfromallovertheworld.PeoplearewillingtoknowhowChinaachievedsuchgreatdevelopmentunprecedentedinthehistoryofhumanbeingssincethereformandopeningupsome30yearsagoandwhattheriseofChinameanstotherestoftheworld.
简介:Histogramofcollineargradient-enhancedcoding(HCGEC),arobustkeypointdescriptorformulti-spectralimagematching,isproposed.TheHCGECmainlyencodesroughstructureswithinanimageandsuppressesdetailedtexturalinformation,whichisdesirableinmulti-spectralimagematching.Experimentsontwomulti-spectraldatasetsdemonstratethattheproposeddescriptorcanyieldsignificantlybetterresultsthansomestate-ofthe-artdescriptors.
简介:Aimingattheproblemssuchasmorerepeatedlydesignandlongerdesigncycle,inthispaper,thesimilaritytheorywasintroducedtothedesignprocessofthekeystructuresofflotationmachine.TheimpellerandU-shapedtankofflotationmachinesystemwereanalyzedassimilarityunit.Meanwhile,thelevelofsimilarityoftheunitsandthesimilarityofthesystemwerecalculated.BasedontheanalysisoftheimpellerandthesizeofU-shapedtank,thesimilaritycriteriawerederived.Thederivedconclusionsare:(1)Therelationshipbetweenthediameteroftheimpellerandthevolumeofthetankwaspowerfunctionandcalculatedasthesimilaritycriteriaoftheimpeller;(2)TherelationshipbetweentheratiobetweentheU-shapedtank’scross-sectionalareaandimpeller’sdiameterandthevolumeofthetankwaspowerfunctionandcalculatedasthesimilaritycriterionsoftheU-shapedtank.Usingthesimilaritycriterioncombinedwithcomputertechnologyanddatabasetechnologytorealizepartandsystemserializationdesign.Theresultsshowthattheresearchcanavoidrepeatedlydesign,shortendesigncycle,andraisethedesignefficiency.
简介:一般来说,量钥匙分发(QKD)由于量无常原则,量noncloning定理和意味着量不能进一步被划分的量nondividing原则为完美的设备被证明无条件地安全。然而,在系统使用的实际光、电的设备是有瑕疵的,它能被偷听者部分利用到或完全侦察在合法聚会之间的秘密钥匙。在这篇文章,我们简短首先在量关于国际性地执行的有瑕疵的设备砍在一些试验性的QKD系统上上考察最近的工作,然后,我们将在细节介绍我们的最近的砍工作包括被动法拉第镜子攻击,部分随机的阶段攻击,选择波长的photon-number-splitting攻击,频率移动攻击,和single-photon-detector攻击。那些量攻击提醒人改进安全由简单地增加反措施或采用象测量设备独立人士协议那样的一个完全不同的协议避免量砍在测量设备的瑕疵上由于有瑕疵的设备在实际QKD系统存在[Lo,等,Phys。加快。Lett,2012,108:130503]。