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简介：Becauseofitspotentialapplicationsinagriculture,environmentmonitoringandsoon,wirelessundergroundsensornetwork(WUSN)hasbeenresearchedmoreandmoreextensivelyinrecentyears.ThemainandmostimportantdifferenceofWUSNtoterrestrialwirelesssensornetwork(WSN)isthechannelcharacteristics,whichdeterminesthedesignmethodologyofit.Inthispaper,thepropagationcharacterofelectromagnetic(EM)waveinthenearsurfaceWUSNisanalyzed,aswellasthepathlossmodelofitisgiven.Inaddition,theinfluenceofhuman'sankletothechannelcharacteristicsofnearsurfaceWUSNisinvestigatedbyelectromagnetictheoryanalysis,simulationandexperiment.AnovelpathlossmodelofnearsurfaceWUSNwhichtakestheinterferenceofhuman'sankleintoconsiderationisproposed.ItisverifiedthattheexistingofhumanabovetheWUSNsystemmaycauseadditionalattenuationtothesignalofnearsurfaceWUSNwhichpropagatesaslateralwavealongtheground.Moreover,therelationoftheattenuationandoperatingfrequencyisdeduced,whichgivesareferencetoextendthefrequencybandappliedinWUSN.

简介：OnJuly7,2014theprojectcoveringtheenlarged-scalepilottestandcommercialsidelinetestoftheMTPcatalystandPDPofthe1.8Mt/aSMTPpackagedtechnology,jointlyundertakenbytheSINOPEC’sShanghaiPetrochemicalResearchInstituteanditscooperativeinstitutions,hadpassedtherevieworganizedbytheSINOPEC

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简介：随着我国旅游业由保守到开放、粗放到集约的转变，运用网络信息化手段对传统旅游业进行改造是非常重要的文章的旅游网站设计是基于B／S架构，采用DreamweaverMx2004软件进行页面制作，SQLServer2000数据库提供后台支持，用ASP语言实现动态网页效果，具有注册登陆、浏览、查询等功能。

简介：ObjectiveToreportoutcomesofnonsurgicalandsurgicalmanagementofMenière’sdiseaseatBeijingTiantanHospital.MethodsPatientswithMenière’sdiseasewerecategorizedintogroupsbasedonhearingandqualityoflife.Individualizedmanagementwasprovided,includinglifestylemodification,drugtherapies,endolymphaticsacdecompressionandlabyrinthectomy.Treatmentoutcomeswereevaluatedduringupto24monthsfollowup.ResultsEightysevenpatientsunderwentlifestylemodificationanddrugtherapies.ThevertigocontrolrateofGradeAandBwas76.9%and83.8%respectively.Sixpatientsreceivedsurgicalmanagement,includingendolymphaticsacdecompression(n=5)andlabyrinthectomy(n=1).Forthesepatients,thevertigocontrolrateofGradeAandBwas80%and100%,respectively.ConcluIsionsManagementofMenière’sdiseasedependsonseveralfactors,i.e.severitiesofvertigoandhearingloss,qualityoflife,surgicalcontraindicationsandpatientsubjectivedesire.Thetreatmentisdrugtherapiesforthemajorityofpatients,aswellaslifestylemodification.Surgicalindicationsarerareandtheleastinvasiveproceduresshouldbeconsideredfirst.Theresultsofsurgeryaregenerallysatisfying.

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简介：RecentarticlespublishedinNaturepointouthowsexbias,primarilyconcerningmale-exclusivity,inbiologicalresearchresultinmisleadingandambiguousscience.1-4Forexample,themajorityofanimalstudiespublishedinacademicjournalsusedonlymales,whileonlyverylimitedstudieswereinvestigatedinfemalesorbothsexes.Theconsequencesofsuchmale-favoredsexbiasinbiomedicalstudieshadleadtoahugecostinthebiomedicalindustryincludingdrugdevelopment.Between1997and2001,eightoutof10prescriptiondrugswerewithdrawnfromthemarketbytheUSFDAbecausetheyshowedmoresideeffects

简介：<正>InOctober2014,theFourthPlenumofthe18thCPCCentralCommitteeputforwardthegeneralobjectiveoftakingfasterstepstobuildacountrywhichisgovernedbylaw.TheconferencealsoreviewedtheachievementsandexperienceoftheruleoflawinChina,anddrewtheblueprintofstickingtoand

简介：在雷克萨斯还被叫做“凌志”的时候我就认识它了。那时我在上高中，依稀记得每当放学就会有一辆“三点零五分”LOGO的车停在校门口，接走我们学校最帅气的校草。那时感觉是那么的可望不可即，每天的怦然心动就在放学的那一刻，看着他上车，看着那辆“三点零五分”缓缓的消失在车流中。后来才知道那个顶着“三点零五分”LOGO的车叫“凌志”。也不曾记得“凌志”何处让我如此的印象深刻，或许是那时的情窦初开让它深深地印在脑海中。慢慢长大的同时I这个社会也在迅速地变化，“凌志”这个名字已经被“雷克萨斯”所取代。但“三点零五分”的LOGO始终让我保持着心动。

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简介：摘要院5S管理活动是大多数日资企业采取的一种管理形式，本文通过对5S管理的分析与研究，总结5S执行过程中的要素及意义。

简介：在当前教学改革中,B/S结构软件开发应用于教育的教学方式不仅是当前形势需求,更进一步地蕴含着教学理论与教学实践的统一。根据B/S结构软件的自身特性,对B/S结构软件开发课程教学当前存在的现状及问题入手,就关键问题提出针对性的策略,本文提出要改善教学模式,包括让学生占据主导地位,增加师生交流等,要注重培养学生实践能力,要注重典型案例教学,如此才能有效改善B/S结构软件开发课程当前存在的困境。