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  • 简介:China’spatentsystemwasestablishedin1984andcameintoeffectin1985.Threecomprehensiveamendmentshavebeenmadesofarandthefourthamendmentthatismorecomprehensiveisinprogress.Thisamendmentamountsto33articles,addingachapterof“ImplementationandApplicationofPatents”.Thekeypointsofamendmentaretostrengthentheprotectionofpatents,promotetheimplementationandapplicationofpatents,andincreasetheliabilityofpatentinfringement.Theimportantpointsofamendmentaretoimprovethelevelofpatentprotection,raisetheindemnificationstandard,transfertheburdenofproof,andencouragetheinventionandtilttheinterestsofthepatenteeorinventor.TheseamendmentswillfurtherpromotetheimprovementandperfectionofChina’spatentsystemandfurtherpromotethecivilizationandprogressofChina’ssociety.

  • 标签: PATENT LAW AMENDMENT KEY POINTS important
  • 简介:Recently,ithasbeenseenthattheensembleclassifierisaneffectivewaytoenhancethepredictionperformance.However,itusuallysuffersfromtheproblemofhowtoconstructanappropriateclassifierbasedonasetofcomplexdata,forexample,thedatawithmanydimensionsorhierarchicalattributes.Thisstudyproposesamethodtoconstructeanensembleclassifierbasedonthekeyattributes.Inadditiontoitshigh-performanceonprecisionsharedbycommonensembleclassifiers,thecalculationresultsarehighlyintelligibleandthuseasyforunderstanding.Furthermore,theexperimentalresultsbasedontherealdatacollectedfromChinaMobileshowthatthekey-attributes-basedensembleclassifierhasthegoodperformanceonbothoftheclassifierconstructionandthecustomerchurnprediction.

  • 标签: CUSTOMER churn data mining ENSEMBLE CLASSIFIER
  • 简介:Toaddressthephenomenonofsparkingduringtheedgeinductionheatingprocessinhotstripmills,thispaperusesnumericalsimulationtosystematicallyinvestigatethekeyfactorsinfluencingsparkingandtheireffects.Thedistributionofinducedcurrentdensityinthesteelplateaboverollerconveyortableduringtheheatingprocessiscalculatedandcomparedunderdifferentconditions,includingtherelativepositionsofthesteelplateandinductioncoil,thewidthofthesteelplate,andchangesinload.Theresultsshowthatwhenanarrowsteelplateisheatedorthesteelplateshiftstothesideoftheinductioncoil,sparkingbetweenthesteelplateandrollerconveyorismorelikelytooccur.

  • 标签: INDUCTION HEATING steel PLATE sparking
  • 简介:Certificatelessencryptionattractsalotofattentionsofarbyeliminatingthekeyescrowprobleminidentity-basedencryptionandpublickeycertificatesinthetraditionalpublickeycryptography.Byconsideringthethreatfromthekeyexposure,itisdesirabletoincorporatetheideaofkey-insulatedcryptosystemintothecertificatelessencryption.Inthispaper,wehavedesignedanefficientcertificatelesskeyinsulatedencryption(CL-KIE)schemetoachievethisgoal.Byourapproach,thecomputationalperformanceofourschemehasbeenimprovedsignificantlyintermsofreductiononrunningtimeandstorage.WealsogavethesecurityproofofthenewCL-KIEschemeagainstthechosenplaintextattacks(CPAs)intherandomoracle,consideringtheassumptionofthecomputationalDiffie-Hellman(CDH)problem.

  • 标签: CERTIFICATELESS cryptography keyinsulated pairing-free random oracle
  • 简介:Nowadays,thepassword-basedremoteuserauthenticationmechanismusingsmartcardisoneofthesimplestandconvenientauthenticationwaystoensuresecurecommunicationsoverthepublicnetworkenvironments.Recently,Liuetal.proposedanefficientandsecuresmartcardbasedpasswordauthenticationscheme.However,wefindthatLiuetal.’sschemeisvulnerabletotheoff-linepasswordguessingattackanduserimpersonationattack.Furthermore,italsocannotprovideuseranonymity.Inthispaper,wecryptanalyzeLiuetal.’sschemeandproposeasecurityenhanceduserauthenticationschemetoovercometheaforementionedproblems.Especially,inordertopreservetheuseranonymityandpreventtheguessingattack,weusethedynamicidentitytechnique.Theanalysisshowsthattheproposedschemeismoresecureandefficientthanotherrelatedauthenticationschemes.

  • 标签: AUTHENTICATION OFF-LINE PASSWORD guessing ATTACK smart
  • 简介:摘要随着计算机技术和网络技术的不断发展,对工程测量技术的影响越来越大,必须加强工程测量管理,努力提高工程测量技术水平,使得工程测量技术与设备更好地为工程测量工作服务。本文结合工作实践,对影响工程测量质量的主要因素进行了分析,并对如何加强工程测量管理进行了探讨分析。

  • 标签: 工程测量 测量技术
  • 简介:摘要随着经济的快速发展,我国的技术领域也得到了极大地发展。在高科技的不断发展的过程中,各领域的技术也得到了长足地发展,在工程测量领域还是存在很多的问题,将极大地影响工程工作地顺利开展,所以有必要加强对工程测量管理工作,对实际的测量工作进行进一步地研究,提高建筑施工的安全,为建筑施工提供可靠的技术支持,一旦遇到工程测量问题将会影响到工程的测量管理工作的水平,所以为了实现提高工程的测量技术和水平,需要加强测量管理工作,本文就是建立在这样的基础上,从工程测量管理工作中存在的问题尽心分析,并针对这些问题提出有针对性的解决措施。

  • 标签: 工程测量管理 工程测量技术 问题 措施
  • 简介:摘要提高对工程测量的重视、加强对工程测量管理,对提高工作效率,确保工程质量有着无可比拟的作用,对保证工程工期、工程施工质量与安全都具有重要的意义。本文探讨了公路工程施工测量测量管理

  • 标签: 公路工程 施工 测量 测量管理
  • 简介:Intheair-waterquantumkeydistribution(QKD),theirregularseasurfacehassomeinfluenceonthephotonpolariza-tionstate.Thewindisconsideredasthemainfactorcausingtheirregularity,sothemodelofirregularseasurfacebasedonthewindspeedisadopted.Therelationshipsofthequantumbiterrorratewiththewindspeedandtheinitialincidentanglearesimulated.Therefore,themaximumsecuretransmissiondepthofQKDisconfirmed,andthelimita-tionofthewindspeedandtheinitialincidentangleisdetermined.Thesimulationresultsshowthatwhenthewindspeedandtheinitialincidentangleincrease,theperformanceofQKDwillfalldown.Undertheintercept-resendattackcondition,themaximumsafetransmissiondepthofQKDisupto105m.Torealizesafecommunicationsinthesafedivingdepthofsubmarines(100m),theinitialincidentangleisrequestedtobenotexceeding26~,andwiththeinitialincidentan~leincreased,thelimitationofwindspeedisdecreased.

  • 标签: IRREGULAR sea surface quantum key distri-aution
  • 简介:摘要随着现代工业的不断发展,在机械加工中对于加工精度也有着越来越高的要求。因而,更好保证机械零件加工精度也就具有十分重要的作用及意义。在机械零件加工生产过程中,为能够使加工精度得以较好保证,应当通过相关技术对加工技术进行测量。并且针对相关问题进行充分分析,在此基础上才能更好对加工的零件进行较为合理的测量,使加工精度的准确性得到技术保证,使零件加工精度得以提升。鉴于此,本文是对加强工程测量管理提高工程测量技术进行研究和分析,仅供参考。

  • 标签: 工程测量管理 测量技术
  • 简介:摘要最近几年,我国工程测量领域发展了很多新技术,并且取得了一定的成绩,但不可否认的是,整体来说发展还是较不平衡的。因此,还需要继续努力,加大研究力度,促进各种新工工程测量技术手段和测量技术方法的不断提档升级和更新换代,不断引进和应用及研发新技术、新装备,使传统的手工测量逐步被自动式测量所取代,实现朝着新时期的“电子化、数字化和自动化”这样的方向发展,使工服务领域不断拓宽,开创新的发展局面,服务于我国经济发展社会进步的大局。

  • 标签: 工程测量 管理 提高策略