简介:Endoscopicsubmucosaldissection(ESD)inventedinJapan,playsanimportantroleinthetreatmentofearlygastrointestinalcancer(EGC)anddysplasia.Endoscopicproceduresarenowwidelyspreadingaroundtheworld.ESDhastheadvantagethatenblocresectionaswellaspathologicalviewcanbeachievedwhencomparedwithconventionalendoscopicmucosalresection(1).Thankstothe
简介:Amethodforminingfrequentitemsetsbyevaluatingtheirprobabilityofsupportsbasedonassociationanalysisispresented.Thispaperobtainstheprobabilityofevery1-itemsetbyscanningthedatabase,thenevaluatestheprobabilityofevery2-itemset,every3-itemset,everyk-itemsetfromthefrequent1-itemsetsandgainsallthecandidatefrequentitemsets.Thispaperalsoscansthedatabaseforverifyingthesupportofthecandidatefrequentitemsets.Last,thefrequentitemsetsaremined.Themethodreducesalotoftimeofscanningdatabaseandshortensthecomputationtimeofthealgorithm.
简介:Twotypicalprovincialcapitals(NanjingandZhengzhou)andtwocounties(RugaoandYuanyang)ineast(JiangsuProvince)andcentral(HenanProvince)Chinawerechosenrespectivelyasthedevelopedandlessdevelopedcomparativecasesforpedodiversityandlandusediversitycorrelativeanalysisbyborrowingtherecentlybetterdevelopedpedodiversitymethodology.Landuseclassificationwasworkedoutusingremotesensingimagesinthreedifferentperiods(1986-1988,2000-2001and2004-2006)forthesestudiedcaseareasbeforethecalculationoftheconstituentdiversityindexandspatialdistributiondiversityindexmodifiedafterShannonentropyin2km×2kmgridscaleofthesoilandlandusepatternwereconductedandthenaconnectionindexwasproposedtoevaluatetherelationshipbetweensoilandlandusediversity.Resultsshowthatduringtheyearsfrom1986to2006,thecompositionandspatialdistributionofregionallandusepatternhadchangedgreatly.TheagriculturallandareaofallthestudiedcaseareasdecreasedobviouslyinwhichNanjinghasthehighestdecrementof895.98km2mainlyintourbanusewhiletheotherlandusetypeareachangesshowthesametrend.Theconnectionindexoffourtypicalsoilfamilytypesandtypicalurbanlandusetypes,i.e.,urbanconstructionland,transportationlandandindustrialandminingareaallincreasedinthisperiod.Inthestudiedcaseareas,thereisthehighestsoilconstituentdiversityinZhengzhouat0.779whilethesimplestsoilconstituentdiversityinRugaoat0.582.MeanwhilewehavehigherlandusediversityinthemoreurbanizedJiangsuProvincethanHenanProvince,Nanjingisrankingthefirstthathasbeengettinghigherandhigherinthethreeperiodsat0.366in1986-1988,0.483in2000-2001and0.545in2004-2006.Finally,theconnectionindexfigurestoevaluatetherelationshipbetweensoilandlandusediversityofthestudiedareaswerecomparedtoshowthesimilarphenomenonthatthisfiguregrowsfastestinNanjingfollowedb
简介:ThispaperintroducesadomesticallydevelopedCAD/CAMsystem,CAX,whichisabletomeettheneedsofsmallandmediumsizedenterprises.Firstly,themotivationsandprinciplesforthedevelopingofthesystemarepresented.Then,thefunctionsandfeaturesofCAXaredescribed.Inthe3rdsection,thealgorithmsforgeneratingblendingsurfaceswithbothconstantradiusandvariantradiiaredetailed.SixcolorplatesshowingtheapplicationsofCAXareincludedinsection4.Finally,dis-cussedaresomeenhancementsbeingaddedtoCAXinthfuture.
简介:Ananomeshhasbeendevelopedthatnearlytriplessolarcellefficiency.Theresearchteammanagedtoreducethereflectivityofthematerialsused,effectivelyincreasingtheamountofcapturedlight.Inadditiontothis,thenewsolarcellsarealsomuchthinnerthancurrentonesonthemarket.Thestructureiscreatedbysandwichingmetalwithnanomeshandisbeingcalled'PlasomnicCavity
简介:ConsideringbothChina'senergysecurityandthenon-renewabilityandscarcityoffossilfuels,developingnewenergies,realizingthetransformationofthenation'senergystructure,andreducingtherelianceonforeignenergyresourceswillbethelong-heldgoalsofthenationalenergypolicy.Inrecentyears,theChinesegovernmenthasintroducedaseriesofpreferentialpoliciestopromotethedevelopmentofnewenergies.Thelatestpolicyonelectricitypriceadjustmentannouncedattheendoflastyear,forinstance,involvedthestandardriseofsubsidiesforrenewableenergy,whichisexpectedtofacilitatethedevelopmentofnewenergies.
简介:AsanimpactofInternationalFinancialCrisis,theGreeksovereigndebtcrisissuddenlyturnedup.SomeEuropeancountries'debtcrisisgotfurtherunveiled.Themountingriskofworldsovereigncrisiscouldbetheprincipalriskofworldeconomyandfinancialmarketaftertheinternationalfinancialcrisisandwouldthreatentheglobaleconomyrecovery.Theworldeconomy,unchainedfromtheinternationalfinancialcrisis,mightenterthenextphaseofsovereigndebtcrisis.
简介:TheneutronTimeOfFlight(nTOF)facilityatCERNisahighfluxspallationneutronsourcecommissionedinNov2000andAPr2001.ForthecommissioningphasesaninnovativemultipurposeDAQsystemwasdevelopedandused.Thissystemiscapableofhandlinghighdatarated(10Mb/s)withtheuseoftheNationalInstrumentsPCI-VXIinterfaceboardtocommunicatewiththeVMEcrates.ThegraphicaluserinterfaceisbasedonJava^TMandROOTallowingimmediatevisualizationofthedataandprovidingaflexiblewayofcreatingconfigurationsforvariousexperimentalsetups.
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