简介:Objective:ToidentifytheeffectofdyslipidemiaonauditoryfunctiondetectedbyPureToneAudiometry.Tocheckifdyslipidemiaworsensthehearinglevelindiabetics.Design:Thiswasacomparativestudywhere120subjectsbetweentheagegroupof20and50yearsunderwentpuretoneaudiometry,lipidprofileandbloodsugars.Group1consistedof30subjectswithtype2diabetesanddyslipidemia;Group2had30subjectswithisolateddiabetes;Group3had30withisolateddyslipidemiaandGroup4included30normalsubjectsascontrol.Results:Significanthearinglosswasseenonlyinthegroupwithisolateddiabetes(63%).Themostcommontypeofhearinglosswashighfrequencysensorineuralhearingloss.Whencomparisonwasmadebetweenthecombinationsofdifferentlipidprofiles,noassociationwasfoundtothelevelofhearing.Conclusions:Diabeticsaremorepronetohighfrequencyhearingloss.Alteredlipidprofilehasnoroleincausinghearingloss.
简介:Afterthereformandopening,theeconomicrelationshipbetweenChinaandtheworldisstrengthenedheavily.Theoretically,internationalfactorshaveimpactonthedomesticgeneralpricelevelthroughasetofchannels.Thispaperemployedasampleincludingmonthlydataoffiverepresentativeindicators,toexploretheinfluenceofinternationalfactorsonChinesepricelevel.TheempiricalresultsshowedthatthereisanobviouslagforChineseCPIreactingtointernationalshocks,whilethePPIreactsimmediately.TheimpactofinternationalfactorsonChineseCPIandPPIusuallylasts12monthsatleastandtheyalwaysexhibitadifferenttransmissionmechanismforinternationalshocks.Besides,afurtherstudyrevealedthatsomestructure-breakpointsintheinfluencemechanismofinternationalfactorsexist,andgreatchangesoftheimpactdirectionandsignificancefordifferentfactorshavetakenplaceinthesubsampleperiods.
简介:Weexperimentallydemonstratethenonlinearinteractionbetweentwochirpedbroadbandsingle-photon-levelcoherentstates.EachchirpedcoherentstateisgeneratedinindependentfiberBragggratings.Theyaresimultaneouslycoupledintoahigh-efficiencynonlinearwaveguide,wheretheyareconvertedintoanarrowbandsinglephotonstatewithanewfrequencybytheprocessofsum-frequencygeneration(SFG).AhigherSFGefficiencyof1.06×10-7isrealized,andthisefficiencymayachieveheraldingentanglementatadistance.Thisalsomadeitpossibletorealizelong-distancequantumcommunication,suchasdevice-independentquantumkeydistribution,bydirectlyusingbroadbandsinglephotonswithoutfiltering.
简介:Inthispaper,thelongtimeseriesdataofthewellwater-leveldataof12wellsintheSichuanandYunnanareaisanalyzedbytheBaytap-Gtidalanalysissoftware,andwellwaterleveltidalresponsecharacteristicparameters(amplituderatioandphasechange)areextracted.Weanalyzedthefeaturesoftheshapeandstagechange,andcharacteristicparametersofthetidalresponseofwellwaterlevelbeforeandaftertheearthquakes,whichcanprovideanewmethodandapproachtoanalyzingtheresponserelationshipsbetweenwellwaterlevelandearthtideandbarometricpressure.TheresultsshowthatLuguhuWelland9otherwellsareaffectedbyearthtides,andtheirwellwaterlevelamplituderatiosandphasesarerelativelystable;theNanxiWellandDayaoWellwaterlevelchangesareaffectedbythebarometricpressurecombinedwithtideforce,andtheirwellwaterlevelamplituderatiosandphasesaremorediscrete.ThewaterlevelamplituderatiosandphasesofJiangyouWell,LuguhuWellandDongchuanWellaresignificanttolargeearthquakes,andtherelationshipbetweenseismicenergydensityandwaterlevelamplituderatiosandphasesofM_2waveofthethreewellsarepresented.
简介:英国高考A-level证书对学生考试成绩的评定半个多世纪以来不断发展完善,逐步形成了当前的A*—E和U共7个等级。英国高考A-Level证书等级体系的改革呈现出四大特点:拉长A-Level等级体系,为高校录取提供更大的区分度;考试次数由一年多次考试转变为"一考定终身";设置统一分数量表,实行等级转换制;教师对考生A-Level成绩的估分,作为等级评定程序中的重要部分。A-level等级体系对我国新高考改革的启示,即合理划分高考成绩评定等级数量,构建起科学的等级链;减少重复考试次数,将多次等级考试转变为"一次性考试";设置高考统一分数和等级转换系统,增加考试的信度和效度。
简介:密文政策基于属性的可查找的加密(CP-ABSE)能为数据分享和检索完成有细密纹理的存取控制,并且安全deduplication能由消除副本拷贝节省存储空间。然而,有很少策划支持可查找的加密和安全deduplication。在这份报纸,支持安全块级的deduplication的一个大宇宙CP-ABSE计划在混合的云机制下面被建议。在建议计划,在密文被插入到花蕾过滤器树(BFT)以后,私人云能由匹配标签高效地执行有细密纹理的deduplication,并且公共的云能用同构的可查找的方法并且关键词匹配高效地寻找。最后,建议计划能在选择分发攻击下面完成隐私块级(PRV-CDA-B)固定deduplication并且隐藏火柴(MC)可查找的安全。与存在计划相比,建议计划在同时支持有细密纹理的存取控制,块级的deduplication和有效搜索有优点。
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简介:一个光陷井能在在一个光洞嵌入的一个ultracold原子系统由一块轻地被印,是众所周知的,并且由三块不同的协调的地开车。在光洞共存的三块地中,有一块强烈控制地,经由创造与联系Rabi频率的平方成正比的力量的一个周期的光栅栏的导致electromagnetically的透明性,和另一块地导致巨大的克尔非线性。在这,管理探查域的繁殖的非线性的方程的工作elliptic-soliton答案被考虑,与形成有明确的量数字的一个分离系列的光soliton火车的可能的产生上的强调。这个问题被对待假定周期的光栅栏的二种不同类型并且考虑否定并且detunings(detuning在上面或在回声下面)的正号。结果预言在自我阶段和跨阶段的调整非线性之间的比赛产生不同的量数字描绘的时间的soliton火车模式的一个富有的家庭。
简介:Wepresentthesolidmodeleditdistance(SMED),apowerfulandflexibleparadigmforexploitingshapesimilaritiesamongstCADmodels.ItisdesignedtomeasurethemagnitudeofdistortionsbetweentwoCADmodelsinboundaryrepresentation(B-rep).Wegivetheformaldefinitionbyanalogywithgrapheditdistance,oneofthemostpopulargraphmatchingmethods.Toavoidtheexpensivecomputationalcostpotentiallycausedbyexactcomputation,anapproximateprocedurebasedonthealignmentoflocalstructuresetsisprovidedinaddition.Inordertoverifytheflexibility,wemakeintensiveinvestigationsonthreetypicalapplicationsinmanufacturingindustry,anddescribehowourmethodcanbeadaptedtomeetthevariousrequirements.Furthermore,amultilevelmethodisproposedtomakefurtherimprovementsofthepresentedalgorithmonbotheffectivenessandefficiency,inwhichthemodelsarehierarchicallysegmentedintotheconfigurationsoffeatures.ExperimentresultsshowthatSMEDservesasareasonablemeasurementofshapesimilarityforCADmodels,andtheproposedapproachprovidesremarkableperformanceonareal-worldCADmodeldatabase.
简介:WestudythefeatureofmediachangesbeneaththeZipingpureservoiranddiscusstheprocessofpermeationwiththewaterlevelriseandfallofthereservoirfromJanuary2005toJanuary2008fromambientnoisecrosscorrelationbyusingcontinuousseismicdatarecordedbythestationsofZipingpuseismicnetworkandYZPstation.Amoving-windowcross-spectrumtechniquehasbeenusedtocalculatetherelativeseismicvelocitychangesbetweenstationpairs.Resultsrevealedanobviousrelationshipbetweenrelativeseismicvelocity,andthewaterlevelchangeswithatimedelaythatmaybecausedbypermeationduringthreemainimpoundmentsandtwolargescaledisemboguements.Impoundmentgeneratesafastandlargeimpactonthesuperficiallayer,andthechangesofseismicvelocityistheresultofincreasedpressureandpermeationduringtheimpoundment.Atthefirstimpoundment,themaineffectfactorispressure.Duringthenexttwoprocessofimpoundment,permeationbecomesthemaineffectfactor,affectingthefaultatadepthofabout8km.
简介:Benignprostatichyperplasia(BPH)isanage-relateddiseaseofunknownetiology,characterizedbyprostaticenlargementcoincidentwithdistinctalterationsintissuehistology.Inthepresentstudy,weinvestigatedwhethertriptolidecanpreventtestosterone-inducedprostatichyperplasiainrats.Castrationwasperformedviathescrotalrouteafterurethaneaesthesia.BPHwasinducedinexperimentalgroupsbydailysubcutaneousinjectionsoftestosteronepropionate(TP)fortwoweeks.Triptolidewasadministereddailybyoralgavageatadoseof100and50μg×kg~(-1)for2weeks,alongwiththeTPinjections.Onday14,theanimalswerehumanelykilledbycervicaldislocationafteraesthesia.Prostateswereexcised,weighed,andusedforhistologicalstudies.Testosteroneanddihydrotestosterone(DHT)levelsinserumandprostateweremeasured.Theresultsshowedthattriptolidesignificantlyreducedtheprostateweight,andthetestosteroneandDHTlevelsinboththeserumandprostate.HistopathologicalexaminationalsoshowedthattriptolidetreatmentsuppressedTP-inducedprostatichyperplasia.Inconclusion,triptolideeffectivelyinhibitsthedevelopmentofBPHinducedbytestosteroneinaratmodel.
简介:Inthisstudy,weinvestigatetheinfluenceofdopingonthechargetransferanddevicecharacteristicsparametersinthebulkheterojunctionsolarcellsbasedonpoly(3-hexylthiophene)(P3HT)andamethanofuUerenederivative(PCBM).Organicsemiconductorsarealsoknowntobenotpureandtheyhavedefectsandimpurities,someofthemarebeingchargedandactasp-typeorn-typedopants.Calculationsofthesolarcellcharacteristicsparametersversusthep-dopinglevelhavebeendoneatthreedifferentn-dopings(N_d)thatconsistof5×10~(17)cm~(-3),10~(18)cm~(-3),and5×10~(18)cm~(-3).Weperformtheanalysisofthedopingconcentrationthroughthedrift-diffusionmodel,andcalculatethecurrentandvoltagedopingdependency.Wefindthatatthreedifferentn-dopantlevels,optimump-typedopingisaboutN_p=6×10~(18)cm~(-3).Simulationresultshaveshownthatbyincreasingdopinglevel,V_(oc)monotonicallyincreasesbydoping.CellefficiencyreachesitsmaximumatsomewhathigherdopingasFFhasitspeakatN_p=3×10~(18)cm~(-3).Moreover,thispaperdemonstratesthattheoptimumvalueforthep-dopingisaboutN_p=6×10~(18)cm~(-3)andoptimumvalueforn-dopantisN_d=10~(18)cm~(-3),respectively.Thesimulatedresultsconfirmthatdopingconsiderablyaffectstheperformanceoforganicsolarcells.
简介:Wereportonbroadlywavelength-tunablepassivemode-lockingwithhighpoweroperatingatthe2μmwaterabsorptionbandinaTm:CYAcrystallaser.Withasimplequartzplate,stablemode-lockingwavelengthscanbetunedfrom1874to1973nm,withatunablewavelengthrangeupto~100nmandmaximumoutputpowerupto1.35W.Thebandwidthisnarrowas~6GHz,correspondingtoahighcoherence.Toourknowledge,thisisthefirstdemonstrationofwavelength-tunablemode-lockingwithwatt-levelinthe2μmwaterabsorptionband.Thehightemporalcoherentlasercanbefurtherappliedinspectroscopy,theefficientexcitationofmolecules,sensing,andquantumoptics.