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500 个结果
  • 简介:Evidence-basedpointselectionmethodsmeanselectingacupuncturepointsonthebasisofevidenceofclinicalefficacy.Whilemostofthisevidencecurrentlyderivesfromhistoricalliterature,whichrepresentstheaccumulatedclinicalexperienceofovertwomillennia,thereisalsoagrowingbodyofevidencebeingestablishedthroughacupunctureresearch.

  • 标签: 针灸疗法 中医治疗 临床研究 天突穴 定喘穴
  • 简介:Takingtheadvantageoftheliftingscheme'scharactersthatcanbuildwavelettransformsfortransformingfromintegertointegerandthequalityofthereconstructingimageisindependentofthetopologywayadoptedbytheboundary,animagefusionalgorithmbasedonliftingschemeisproposed.Thispaperdiscussesthefundamentaltheoryofliftingschemefirstlyandthenaftertakingtransformanalysisaccordingtoakindofimagesthatneedtobeconfused.

  • 标签: 数据压缩 图像压缩 提升方法 图像处理
  • 简介:Therehasbeenaparadigmshiftinmedicineawayfromtradition,anecdoteandtheoreticalreasoningfromthebasicsciencestowardsevidence-basedmedicine(EBM).Inpalliativecarehowever,statisticallysignificantbenefitsmaybemarginalandmaynotberelatedtoclinicalmeaningfulness.Thetypicaltreatmentvs.placebocomparisonnecessitatedby‘goldstandard'randomisedcontrolledtrials(RCTs)isnotnecessarilyapplicable.Thecomplexmultimorbidityofendoflifecareinvolvesconsiderationsofthepatient'sphysical,psychological,socialandspiritualneeds.Inaddition,thefieldofpalliativecarecoversaheterogeneousgroupofchronicandincurablediseasesnolongerlimitedtocancer.Adequatesamplesizescanbedifficulttoachieve,reducingthepowerofstudiesandhighattritionratescanresultininadequatefollowupperiods.Thisreviewusesexamplesofthemanagementofcancer-relatedfatigueanddeathrattle(noisybreathing)todemonstratethecurrentstateofEBMinpalliativecare.ThefutureofEBMinpalliativecareneedstobeasdiverseasthepatientswhoultimatelyderivebenefit.Non-RCTmethodologiesofequivalentquality,validityandsizeconductedbycollaborativeresearchnetworksusinga‘mixedmethodsapproach'arelikelytoposethecorrectclinicalquestionsandderiveevidencebasedyetclinicallyrelevantoutcomes.

  • 标签: 治疗 应用 循证医学 临床意义 随机对照试验 医学模式
  • 简介:Purpose:Proctalgiafugax(PF)isabenignanorectalconditionwhichhasbeendescribedintheliteraturesincethenineteenthcenturycommonlypresentingtogeneralsurgeons.Thereislittlehighlevelevidenceonthesubjectanditstherapeuticmodalities.Weaimedthroughthissystematicliteraturereviewtooutlinethe

  • 标签: 证据 管理 基础 鉴别诊断 文献
  • 简介:Basedontheprinciplesofthevisualcryptographyandthelawoflargenumbers,theunexpandedsharesaregeneratedduringtheprocessesofembeddingandverifyingthehiddenwatermark.Thewatermarkembeddingisdoneinthefrequencydomain,whichcanbedecodedbythehumanvisualsystem(HVS)withoutthenecessityofanycomplicatedcomputationandthehelpoftheoriginalimage.Experimentalresultsindicatedthatourmethodhadagoodrobustnessondarkening,lightening,blurring,sharpening,noise,distorting,jitter,jointphotographicexpertsgroup(JPEG)compression,andcropattacks.

  • 标签: 视觉密码学 水印 小波变换 人类视觉系统 原始图像 大数定律
  • 简介:Inordertoachievetheinformationfusioninthetimedomainbasedontheevidencetheory,anevidencecombinationmethodinthetimedomainbasedonreliabilityandimportanceisproposedaccordingtotheideaofevidencediscount.Firstly,thedistortionofthetime-domainevidenceisjudgedbasedonsingleexponentialsmoothing.Thereal-timereliabilityoftheevidenceattheadjacenttimeisobtainedbythereal-timereliabilityassessmentmethodoftheevidencebasedonthecredibilitydecaymodel.Then,therelativeimportanceoftheevidenceattheadjacenttimeisobtainedbycomprehensivelyconsideringimprovedconflictdegreeanduncertainty.Finally,basedonthecriterionofevidencediscountandtheDempster’sruleofcombination,theevidencecombinationiscarriedouttoachievethesequentialcombinationoftime-domainevidence.Thenumericalsimulationandanalysisshowthatthismethodhasfullyembodiedthedynamiccharacteristicsoftime-domainevidencecombination,andithasstrongprocessingabilityforconflictinformationandanti-disturbingability.Theproposedmethodhasgoodapplicabilitytoinformationfusioninthetimedomain.

  • 标签: EVIDENCE theory TIME-DOMAIN EVIDENCE combination evidence DISCOUNT
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  • 简介:Inthisarticle,theauthorsholdthattheevidence-basedmedicine(EBM)isanewmedicalactionproducedatthehistoricmomentinclinicalpractice,whichispromotingdevelopmentofthemedicineandeventhewholelifescienceinafullynewtrainofthoughtendmethod.FurtherthebrieflyintroducedcontentsaretheeffectofEBM,thedifficultyofutilizingintheacupunctureclinicalpracticeandhowtoresolvethem.ItishighlyrecommendedthatthedoctorsoftheacupuncturesciencefieldshouldstudyEBManditseffectanddifficultiesinpracticeasearlieraspossible,insistentlyassimilatenewknowledgeandkeepabreastofthetimes'progresstofacilitatethefurtherdevelopmentofacupunctology.

  • 标签: 基础医学 临床研究 中医 针刺疗法 艾灸疗法
  • 简介:当前基于身份(标志)cryptosystem缺乏两大政党的认证和用户的私人钥匙的机制分发。一些基于标志的signcryption计划和基于标志的证实的关键协议协议被介绍了,但是他们不能完全解决这个问题。一个新奇基于标志的认证计划基于基于标志的加密(IBE)和指纹哈希方法被建议在IBE计划解决困难,它包括证实发送者的消息接收装置,证实用户并且把私人钥匙传给他们的信任权威(TA)。而且,计划从终端扩大指纹认证的应用程序到网络并且免于指纹数据制造。指纹认证方法由二个因素组成。这个方法联合一个标志例如,给USB钥匙调音,与用户由混合有指纹特征的一个假散乱数字的指纹回锅肉丁。安全和试验性的效率满足实际应用的要求。

  • 标签: ID识别 编码 双线性配对 指纹鉴别
  • 简介:Losslessdatahidingcanrestoretheoriginalstatusofcovermediaafterembeddedsecretdataareextracted.In2010,Wangetal.proposedalosslessdatahidingschemewhichhidessecretdatainvectorquantization(VQ)indices,buttheencodingstrategiesadoptedbytheirschemeexpandthefinalcodestream.ThispaperdesignsfourembeddingandencodingstrategiestoimproveWangetal.'sscheme.TheexperimentresultoftheproposedschemecomparedwiththatoftheWangetal.'sschemereducesthebitratesofthefinalcodestreamby4.6%andraisesthepayloadby1.09%onaverage.

  • 标签: 无损数据隐藏 编码策略 VQ 矢量量化 有效载荷 比特率
  • 简介:分享的一个公开可证实的秘密(PVSS)计划是有任何人能验证份额的特殊性质的一个可证实的秘密分享计划他们是否由一个交易者是正确地分布式的。PVSS在象电子投票,有可撤回的匿名的支付系统,和关键附带条件契约那样的许多应用程序起一个重要作用。直到现在,所有PVSS计划基于传统的公共密钥的系统。最近,基于对的密码学从密码的研究人员收到了许多注意。许多基于对的计划和协议被建议了。然而,用双线性的配对的PVSS计划都没被建议。这份报纸论述第一个基于对的PVSS计划。在随机的神谕模型并且在双线性的Diffie-Hellman假设下面,作者证明建议计划是一个安全PVSS计划。

  • 标签: 秘密共享方案 公开可验证 配对 基础 可验证秘密分享 可撤销匿名性
  • 简介:我们建议为产生的一个计划纠缠了挤压的真空状态ofelectromagnetical地。计划基于洞证完。在这个计划,连续地,一个原子与一块古典地,二块量洞地,和另一块古典地交往。期末考试原子说的Bydetecting,二块量洞地将被投射到anentangled状态。

  • 标签: 量子理论 纠缠状态 空穴 电磁场
  • 简介:AmixedschemebasedonWaveletTransformation(WT)isproposedforimageedgedetection.TheschemecombinesthewavelettransformandtraditionalSobelandLoG(LaplacianofGaussian)operatoredge-detectionalgorithms.Theprecisetheoryanalysisisgiventoshowthatthewavelettransformationhasanadvantageforsignalprocessing.SimulationresultsshowthatthenewschemeisbetterthanonlyusingtheSobelorLoGmethods.Complexityanalysisisalsogivenandtheconclusionisacceptable,thereforetheproposedschemeiseffectiveforedgedetection.

  • 标签: 波长变换 边缘检测 多分辨分析 正交性 图像处理
  • 简介:Ahigh-speedandhigh-resolutionopticalA/Dquantizerisproposed.Itsarchitectureisdiscussed.Bitcircuitsarebuiltbyusingthephasemodulatorsinparallel.Basedonthedifferentcharacterofthehalf-wavevoltageforeveryphasemodulatorandthepolarizedbiasdesignofincidentlight,theRFinputsignaliscodedandtransmittedintheformofopticaldigitalsignal.Accordingtotheprincipleofthearchitecture,thehigh-resolutionquantizerswith8-bitand12-bit,etal.arebuilt,whichoperateat100GS/s.Theirquantizationnoiseisinvariablealmostwithbitcircuitsincreasing.Thesimulationresultof4-bitA/Dquantizerisalsogiven.

  • 标签: 光学信号处理 A/D转换 并联调节器 行波
  • 简介:我们基于联合地图格子(电流型逻辑)的空间与时间的混乱建议一个密码的计划,它基于一次性的垫。秘密成员系统的结构决定在解密的进步在在电流型逻辑探索空间与时间的混乱的动态行为暗示进步。电流型逻辑的起始的条件的部分被彻底的搜索用作秘密钥匙的一把秘密钥匙,和恢复由于到在空间与时间的混乱的起始的条件的敏感是不可能的系统。特殊计划的软件实现是容易的。

  • 标签: 时空混沌 密码学 耦合地图晶格 动力行为 CML