简介:Theetiologyofneurodegenerativediseasesisdiverse,howevermostofthemsharecommoncharacteristics:accumulationofmisfoldedproteins,chronicandsustainedneuroinflammation,andthedysfunctionanddeathofcertainpopulationsofneurons.ThebrainofAlzheimer’sdisease(AD)patientspresents
简介:为第二使用订Dini上面的方向性的衍生物的LC非强迫的优化问题介绍二个算法。方法的简洁使用并且表现;重复功能的相关性质的讨论。
简介:Thispaperdiscussestheharmonicproblemsincontrolsystemsfromtwoaspects:Oneistheharmoniccontrolamongdifferentsubsystems,andtheotheristheharmoniccontrolamongmultipleinputs.Someintrinsicproblemsinsuchsystemsarediscussed.Itispointedoutthatsomesubsystemsmustbeunstabletostabilizethewholeinterconnectedsystembyanexample.Especiallyfordiscrete-timemulti-inputsystems,anecessaryandsufficientconditionispresentedforthestrictdecreaseofthequadraticoptimalperformanceindexwiththecontrolinputextensions.Thisshowsanessentialdifferencebetweensingle-inputandmulti-inputcontrolsystems.Finally,somefutureresearchdirectionsarediscussedinharmoniccontrolofinterconnectedsystems,allocationofmulti-controlinputs,fault-tolerantcontrol,andfault-diagnosis.
简介:Anoveltwo-wayrotaryjoint(SandPband)isdescribed.ForSbandrotaryjoint,VSWRislessthan1.2overthefrequencyrangefrom1.2GHzto4.4GHz.ForPbandrotaryjoint,thestructureofthereentrantresonatorisusedtoreducethelengthoftherotaryjointtoaboutλ/4,andthespecialandsmallsizerequirementissatisfied.
简介:SijiaoIslandinShengsiCountyofZhejiangProv-inceislocatedatnorthofZhoushanIslands,theconfluenceofYangtzeandQiantangriver(N30°24′,E122°28′),79nauticalmilesfromShanghai,whereconvenientincommu-nicationandrichinwindenergyresourceswithanannualaver-agewindvelocityof7.1m/sandaverageeffectivewinddensityof410.4W/m~2,whichisamonghighestinthecountry.Since1976,theWindPowerLaboratorywassetupinShengsiCounty,aseriesofwindpowerexperimentswascarriedoutandaccumu-latedcertainexperiences.
简介:Perhapsyouareafreshmanandatalosshowtomakethebestuseoftheweekend.Afterall,theweekendoncampusisverydifferentfromthatinhighschool.Totellthetruth,ImetwiththesametroubleasyouwhenIentereduniversity.However,littlebylittle,Ilearnedhowtospendtheweekend.HereI'dliketogiveyousomeadvice.1.Haveagoodrest.Wecan'talwaysputourselvesunderheavypressure,forexample,studyingdayandnight.Remember:wearenotmachines.Afterfivedays'hardwork,wearev...
简介:Weexamineanenergyharvestingsystemoftwomagnetopiezoelasticoscillatorscoupledbyelectriccircuitanddrivenbyharmonicexcitation.Wefocusontheeffectsofsynchronizationandescapefromasinglepotentialwell.Inthesystemwithrelativemistuninginthestiffnessoftheharvestingoscillators,weshowthedependenceofthevoltageoutputfordifferentexcitationfrequencies.