简介:Thepostalsavingslatelyopenedhasmadegreatprogress.Butwhatistheoriginaladvantageofthepostalsavings?Inthelastfewyears,manyexpertshaveconsideredthattheadvantageliesinthelargemumberofpostaloffices.Thispaperproposesanewviewpoint-thePostalIndividualFinance(PIF)anddiscussitscharacteristics.Then,we'sssetupanddescribetheabstractmodelsofPIF.Finally,we'llpointouttheinfluenceofPIFonthestructureofpersonalinvestmentandflowofthenationalcurrency.
简介:TherealDirectionOfArrival(DOA)varieswithtimeinmobilecommunicationsystem.Insuchsituation,theperformanceofconventionalbeamformerswillbedegradedobviously.QuantumSignalProcessing(QSP)beamformerisinsensitivetoDOAerrors,thusitcanachievestableoutputperformanceinsuchcircumstance.ThisletterverifiedtheeffectivenessandfeasibilityoftheQSPbeamformerbysimulationresults.
简介:ThelimitsofparameterγinFASTTCParestudiedinthispaper.AcontinuoustimefluidflowmodelofthelinkbufferisconsideredtocreatealinearcontrolsystemrelatedtoFASTTCP.Linearingthefluidflowmodelandwindowcontrolmodel,theLaplacetransformversionofcongestioncontrolsystemarepresented.Itresultsinanegativefeedbacksystemwithopenlooptransferfunction.WiththeanalysisofNyquistcurveofthesystem,asufficientconditiononasymptoticalstabilityofFASTTCPcongestionwindowrelatedtotheparameterγisobtained.Packetlevelns-2simulationsareusedtoverifythetheoreticalclaims.
简介:TheenvironmentofthepostalindustryinChinahasexperiencedtremendouschangesinthepastfewyears.TheenvironmentalchangeshavesomeeffectsontheelementsthatdecidetheservicestructureofChinaPost.Insuchcontext,thecurrentservicestructureofChinaPostneedssomeimprovementstoadaptitselftothechangingenvironment.AimingattheoptimizationoftheservicestructureofChinaPost,thispaperreviewsthelawofitsdevelopmentandmakesananalysisofitscurrentcharacteristicsandtheexistingproblems.
简介:Themainresearchobjectsinthispaperarethecausessearchingandriskestimatingmethodfortelecomenterprises'financialrisks.Themulti-modefinancingfortelecomenterprisesmakesitflexibletoinducethecapitalandobtaintheprofitbycorrespondingprojects.Buttherearealsopotentialrisksgoingwiththesefinancingmodes.Aftermakinganalysisofcategoriesandcausesoftelecomenterprises'financingrisk,amethodbyAnalyticHierarchyProcess(AHP)isputforwardtoestimatingthefinancingrisk.Andtheauthormakeshersuggestionandopinionbyexampleanalysis,inordertoprovidesomeideasandbasisfortelecomenterprise'sfinancingdecision-making.
简介:Genomicislands(Gis)areoneofthemostimportantcomponentsforcyanobacterialgenome.TheGiscodehasmanyfunctions,suchassymbiosis,pathogenesis,andadaptation.Inthisarticle,wepredictandanalyzetheGisinSynechocystissp.PCC6803bybioinfomatics,andtheresultsshowthatISL1,ISL8,andISL16arehomologouswithmanyotherbacteria,andtheyinvolveinbasicreactionsandhaveaconservativeevolution.Onthecontrary,ISL15hasauniquesequenceandfunctiononlyforSynechocystissp.PCC6803.MostofGisplayaroleingenomerearrangementbecausetheyhavelotsoftransposase.Moreover,wefindthatrecombinationandhorizontaltransferofGisareimportantfactorstoaffectthedistributionofnon-codingRNA.Ourworkcontributestoacomprehensiveunderstandingofgenomicislandsandtheirimpactongenomeofcyanobacteria.
简介:Thispaperanalyzestherelationshipbetweencapacityanddynamicsinrecurrentcorrelationneuralnetwork,andpointsoutthatinsomeconditionstherecurrentcorrelationneuralnetworkhashighmemorycapacity.Thenthispaperpresentsseveralmethodsforimprovingtheperformance.
简介:AtypeofdigitalchaoticeneryptionsystemwasproposedinRef.[1]whichusesaclassof1-Dpiecewiselinear(PWL)maptorealizechaoticencryptionanddecryptionsystemthroughtheinversesystemapproach.Inthegeneralstructureofencryptionsystem,adynamicalsystem∑(·)isusedtoconnectthelinearcombinationofn-orderdelaywiththeinputterminal.Inthispaperweshowthatthiscryptosystemcannotfrustratechosen-ciphertextattack.Atypeofchaoticencryptionsystembasedonself-synchronizingstreamcipherisproposed.Thissystemcanavoidchosen-ciphertextattackandhashighersecurity.
简介:Thispaperdealswithinternallygeneratednoiseofbioelectricamplifiersthatareusuallyusedforprocessingofbioelectricevents.Themainpurposeofthispaperistopresentaprocedureforanalysisoftheeffectsofinternalnoisegeneratedbytheactivecircuitsandtoevaluatetheoutputnoiseoftheauthor'snewdesignedbioelectricamplifierthatcausedbyinternaleffectstotheamplifiercircuititselfinordertocompareitwiththenoisegeneratedbyconventionalamplifiers.Theobtainedanalysisresultsofinternallygeneratednoiseshowedthatthetotaloutputnoiseofbioelectricactivecircuitsdoesnotincreasewhensomeoftheirresistorshavealargervalue.Thisbehavioriscausedbythedifferenttransferfunctionsforthesignalandtherespectivenoisesourcesassociatedwiththeseresistors.Moreover,thenewdesignedbioelectricamplifierhasanoutputnoiselessthanthatforconventionalamplifiers.Theobtainedanalysisresultswerealsoexperimentallyverifiedandthefinalconclusionsweredrawn.