简介：ToimprovethewatertreeresistanceofPE,linearlow-densitypolyethylene(LLDPE)wascompoundedwithsodiumacrylate(NaAA)forinsitupolymerization,inwhichNaAAwasformedthroughtheneutralizationofacrylicacid(AA)withsodiumhydroxide(NaOH)beforeaddingdicumylperoxide(DCP)toinitiatetheinsitugraftpolymerizationandhomopolymerization.AseriesofLLDPE/NaAAcompoundswereinvestigatedfortheirwaterabsorptionratio(WAR)measurement,watertreeing,mechanicalanddielectricproperties.TheresultsstronglysuggestthatNaAAcanimprovethewatertreeresistanceofLLDPE.Inaddition,theLLDPE/NaAAcompoundspossesssatisfactorymechanicalpropertiesanddielectricproperties.CharacterizationofLLDPE/NaAAcompoundsbyusingFouriertransforminfraredspectrometry(FTIR)suggeststhattheneutralizationandpolymerizationreactioncouldbeachievedeffectively.UsingadequateDCPcontentisthekeyfactorforcontrollingthepolymerizationofNaAAwithpreciseconversionratio.

简介：客观：学习在胸方法的ductalcarcinomainsitu的作为一个预示的因素的组织学的分级的意义：根据凡·奈鈥檚分类，胸的ductalcarcinomainsitu(DCIS)的32个盒子被划分成三个组。结果：低等级(很好区分的、低等级DCIS)12个病人(37.5%)；中间的等级，9个病人(28.1%)；高等级(糟糕区分的DCIS)11个病人(34.4%)。在高等级DCIS之中，histologic子类型是粉刺(9个病人)，micropapillary(1个病人)和固体(1个病人)。在高等级DCIS的积极表示ofc-erbB-2，p53和MIB-1在中间、低的等级DCIS比那高。高等级和低等级DCIS之间的差别是重要的(P<0.05)。表示嗯在高等级，DCIS在中间、低的等级DCIS是比那低的。结论：胸ductalcarcinomainsitu的组织学的分级可以是一个好预示的因素。

简介：ＩＮＳＩＴＵＬＡＢＥＬＩＮＧＡＰＯＰＴＯＳＩＳＩＮＢＲＥＡＳＴＣＡＮＣＥＲＡＳＲＥＬＡＴＥＤＴＯＰＲＯＧＮＯＳＩＳＷｕＪｉｏｎｇ吴炅ＳｈａｏＺｈｉｍｉｎ邵志敏ＪｉａｎｇＭｉｎｇ江明ＨａｎＱｉｘｉａ韩企夏ＺｈａｎｇＴｉｎｇｑｉｕ张廷ＳｈｅｎＺｈｅｎｚ...

简介：ThebasestructureofinsituTiCP/Fecompositesfabricatedunderindustrialconditionwaschangedbydifferentheattreatments.Erosiveweartestswerecarriedoutandtheresultswerecomparedwiththatofwear-resistantwhitecastiron.TheresultssuggestthatthewearresistanceoftheinsituTiCp/Fecompositeishigherthanthatofwear-resistantwhitecastironunderthesanderosivewearcondition.Thewearmechanismofthewear-resistantwhitecastironwasacycleprocessthatbasesurfacewaswornandcarbideswereexposed,thencarbideswasbrokenandwearpitsappeared.WhilethewearmechanismofinsituTiCp/FecompositewasacycleprocessthatbasesurfacewaswornandTiCgrainswereexposedanddropped.ThewearresistanceofinsituTiCp/Fecompositewaslowerthanthatofwear-resistantwhitecastironundertheslurryerosivewearcondition.Undersuchcircumstance,thematerialwasnotonlyundergoneerosivewearbutalsoelectrochemistryerosionduetothecontactwithwaterinthemedium.Thewearbehaviourscanbeacombinationoftwokindsofwearandthesanderosivewearisworsethanslurryerosivewear.

简介：Liquefactiontestingatasaturatedloesssitewasperformedunderthesimulatedearthquakegroundmotioninducedbyartificialexplosionswithmicro-timeintervals.Thetimehistoriesofgroundacceleration,porewaterpressureandtheultimatevalueofresidualstrainwererecordedandmeasured.ThemodifiedFEQdraincomputationsoftwarewasusedtoanalyzetheliquefaction.Boththetestandtheanalysisconfumtheobjectiveoccurrenceofloessliquefaction.Furthermore,thereliabilityofthemethodoftheloessliquefactionanalysisbasedonFEQdrainandthemodelofporewaterpressuredevelopmentofsaturatedloessareexamined.

简介：

简介：

简介：Thereisawidespreadinterestinleadtelluride(PbTe)asagoodthermoelectricmaterial.WereportthetemperaturedependenceofthermopowerS(T)andresistanceR(T)forPbTeatthedifferentpressuresoffrom1.8GPato5GPaobtainedbyusingthecubicanvilhighpressureapparatus.Withincreasingpressure,R(T)andS(T)decrease.TheeffectofpressureonR(T)islargerthanthatonS(T).Thepowerfactorthatisdeterminedbythermopowerandresistivityincreaseswithincreasingpressure.Thismethodisanefficienttoolforsynthesizinggoodthermoelectricmaterialsathighpressureandhightemperature.

简介：BackgroundNormally,fewimmunocompetentcellarepresentintheendolymphaticsac(ES).Duringanactiveimmuneresponseintheinnerear,largeamountofinflammatorycells,includingimmunocompetentcells,areseenintheES.ThecurrentstudyaimedatassessingcellularproliferationwithintheESduringinducedimmuneresponseintheinnerear.MethodsFifteenhealthy,femaleSDratsweresensitizedsystemicallywithkeyholelimpethemocyanin(KLH),followedbylocalinoculationinthecochleathroughbasalturnfenestrationwiththesameantigen.OnDays3,7and14followinginoculation,theanimalwassacrificedafterintraperitonealadministrationof5-bromo-2'-deoxyuridine(BrdUrd),andthetemporalboneharvested.Followingdecalcification,infiltrationbyBrdUrd-andIgG-positivecellsintheESwasstudiedonfrozensectionswithH&Eandimmunohistochemicalstaining.ResultsDuringthesecondaryimmuneresponseintheinnerearagainstT-dependentantigens,thereisincreasedcellularproliferationintheES.Theproliferatedcellsmaydifferentiateintoimmunocompetentcellsatthesamelocation.ConclusionsThesefindingsindicatethattheESplaysanimportantroleinimmuneresponseofinnerear.

简介：

简介：Thestudyiscarriedoutontheeffectofdrillingnoiseandvibrationongrowthofgrasscarp,MyloparyngodonPiceus,byusingcut-finmarkingmethodinsitu.Comparedwithothermethods,themethodismoreappropriate,foritsoperationissimplerandmoredatamaybeobtainedunderthesamecondition.Theresultsshowthatdrillingnoiseandvibrationhavesignificanteffectonthegrowthofgrasscarp.Criticalequivalentnoiseandvibrationgrade(NleqandVleq)areabout84.4dBand90.2dB,andtheaffectingradiusisabout8.5m.Theeffectofdrillingnoiseandvibrationcouldbeinfluencedbysomefactors,suchasdurationofpollutionandbodyweightofgrasscarp,etc.Grasscarp′sgrowthcouldrapidlyrecoverafterremovingdrillingnoiseandvibration,indicatingthatthedrillingnoiseandvibrationdonotdamagethefishorgansandtheeffectisreversible.Therefore,theeffectmechanismmaybeduetotheactivatingresponseofnon-hearingsystem.

简介：

简介：Liquidcompositemoulding(LCM)processesareusedtomanufacturehighqualityandcomplex-shapedcompositepartsintheautomotive,marine,aerospaceandcivilindustries.On-linesensingplaysanimportantroleincontrollingthequalityofthefinalproductintheLCMmanufacturingenvironment.Thelong-periodfibergrating(LPG)technology,anewreal-timefiberopticsensorsystem,wasdevelopedtomonitortheflowfrontprogression.Thesensoroperationandcharacterizationundervariousprocessconditionswerediscussedindetail.TheexperimentalresultsshowedthatLPGsensorswererobustandreliabletodetectthearrivalofresinatpre-selectedlocationsinstructureswithlow-mediumfibervolumefraction;howeverwerelimitedatdifferentdepthsinstructureswithhighfibervolumefraction.

简介：

简介：

简介：Insituphotochromicprocessinthemonolayerofaphotochromicspiropyranderivativewithoutlongalkylchain,wasinvestigated.Thephotochromismattheair/waterinterfaceunderdiffernetsurfacepressureswasstudiedbysurfacepressure-areaisotherms,surfacepressure-timecurves,area-timecurvesandBrewsteranglemicroscopy.Bothformsofthecompoundwerefoundtoformmonolayersattheair/waterinterfacealthouhgitdoesnothavelongalkylchain.Alargeareaexpansioninthemonolayercorrespondingtoazreo^thorderreactionwasfoundattheinitialstageoftheUVlightirradiation.Aseriesofdynamicinvestigationsrevealedthatathighpressureafterphasetransitioninthemonolayer,thesurfacepressurechangesgreatlyumderalternativeirradiationofUVandvisiblelight.Anobviousmorphologicalchangeaccompanyingwiththephotochromismwasobservedinsitu.

简介：BaTiO3/PVDFnanocompositeswerepreparedviain-situgrowthofnanosizedBaTiO3particlesinPVDFmatrixbyusingthesolgelmethod.ThepresentelementsofBaTiO3/PVDFnanocompositeswereana-lyzedbyanelectronprobeX-raymicroanalyser.NanosizedBaTiO3growninthecompositefilmswascharacterizedbyanX-raydiffractometerandatransmissionelectronmicroscope,andthedielectricpropertiesofthecompositefilmsweremeasured.ThedistributionofBaTiO3nanoparticlesin-situgrowninthePVDFmatrixwasexaminedus-ingascanningelectronmicroscope.

简介：ＥｌｅｃｔｒｏｎＭｉｃｒｏｓｃｏｐｉｃＩｎ－ｓｉｔｕＯｂｓｅｒｖａｔｉｏｎｆｏｒＰｒｅｐａｒａｔｉｏｎｏｆＵｌｔｒａｆｉｎｅＬａ２Ｏ３ＮａｎｏｐｈａｓｅＰｏｗｄｅｒＧａｏＹｕｚｕｎ（高愈尊），ＬｉＹｏｎｇｈｏｎｇ（李永洪），ＺｈａｎｇＴａｉｓｏｎｇ...

简介：Insitucompatibilizationoflowdensitypolyehylene(LDPE)(30%)andnylon-6(70%)blendsthroughone-stepreactiveextrusionusingt-BuOOHasaninitiatorandlowmolec-ularweightinterfacialagentsascompatibilizerswasstudied.Thecompatibilizercontainedalongchainbydrocarbon,doublebondandtwopolarfunctionalgroupswhichwascapableofreactingwithbothLDPEandnylon-6inthepresenceofinitiatortoformacopolymerattheinterfaceofthetwopolymerphases.Theextrudedblendsexhibitedsignificanten-hancementintheircompatibilitybasedonmorphological,thermalanalysisandmechanicalstudies.Theeffectofthehydrocarbonchainlengthandstructureofthefunctionalgroupofthecompatibilizerwasalsoexamined.Itwasfoundthatblendspreparedbyusingthecompatibilizercontaininglongerhydrocarbonchainandamidegrouphadbettermechanicalproperties.

简介：PbTiO_3/PVDFnanocomposites被准备经由在原处在由大音阶的第五音胶化的PVDF矩阵的nanosizedPbTiO_3粒子的生长方法。种的NanosizedPbTiO_3，在composites，电影被X光检查衍射学(XRD)描绘，准备的合成电影的传播电子显微检查法，和介电性质被测量。在原处在PVDF矩阵种的PbTiO_3nanoparticles的分发用亲戚介电常数与增加PbTiO_3in-situgrown的重量分数增加的扫描电子显微镜.The被检验。特别地，介电损耗monotonically随PbTi-O_3的增加减少，在1MHz的内容。