简介:Theuseofmoreandmoreelectronproductsrequiresinteriorwoodproductstohavetheperformanceofelectromagneticshielding.Oneofthewaystorealizeitistointroducethechemicalplatingwhichhasalreadybeendevelopedinelectronindustryintowoodprocessing.Thepaperclarifiesthemechanismofelectrolesscopperandgoldplatinganditsapplicationtowood.Itemphasizesthedevelopmentandtechnologyofelectrolesscopperandgoldplatingonwood.Meanwhile,itpointsoutthatitishighlyfeasibletotakethistechnologyintoeffect.
简介:Underartificially-simulatedcomplexsalt-alkalistress,thelevelsofactiveoxygenmetabolisminrootswerestudiedusingthree-year-oldcuttingseedlingsofSpiraea×bumalda'GoldMound'andSpiraea×bumalda'GoldFlame'.Thepresentstudyaimedatexploringtheantioxidantcapacityinrootsofspiraeasandrevealingtheiradaptabilitytosalt-alkalistress.Resultsindicatethattheoxygenfreeradicalscontents,electrolyteleakageratesandMDAcontentsinrootsofSpiraea×bumalda'GoldMound'andSpiraea×bumalda'GoldFlame'showanincreasingtendencywiththeincreasesofthesalinityandpHvalue,whereastheactivitiesofsuperoxidedismutase(SOD),peroxidase(POD)andcatalase(CAT)allincreasedfirstlyandthendecreased.Withtheincreaseinintensityofsalt-alkalistress,theCATactivityinrootsofSpiraea×bumalda'GoldFlame'ishigherandtheincreasingextentsintheoxygenfreeradicalscontents,electrolyteleakageratesaswellasMDAcontentsarelowercomparedwithSpiraea×bumalda'GoldMound',indicatingthatSpiraea×bumalda'GoldFlame'hasastrongerantioxidantcapacity.
简介:Thispaperwastoinvestigatebasicpropertiesofmicro/nanofibrilsfrompoplarwithahighpressurehomogenizer.Theirbasicpropertiesweretestedbylaserparticlesizeanalyzer,scanningelectronmicroscopy(SEM)andX-raydiffractometer(XRD).Thetestresultsshowedthatifthefiberslurrymovedfrom20to40circulationsthroughthehomogenizer,for10%ofthemicro/nanofibrils,theparticlesizewasreducedfrom1.2μmto160nmanditssurfaceareaperunitvolumewasincreasedfrom1.63×104...