简介:Inthiswork,asimpleandfacileone-potoleylaminesolvothermalsyntheticmethodwasdevelopedtosynthesizeCu_2ZnSnS_4(CZTS)nanocrystals.AndtheCu_2ZnSn(S,Se)_4(CZTSSe)thinfilmswerepreparedbyselenizingCZTSnanocrystals.TheobtainedCZTSnanocrystalsandCZTSSefilmswerestudiedusingX-raydiffraction(XRD),transmissionelectronmicroscopy(TEM),scanningelectronmicroscopy(SEM),energy-dispersiveX-rayspectroscopy(EDX),andultraviolet–visiblespectrophotometer(UV–Vis).TEMresultsshowthatthesphere–likeCZTSnanoparticleswithdiameterbetween12and35nmarepolydispersed.XRDstudiesindicatethatthepreparedCZTSnanocrystalsformkesteritecrystalstructure,andtheCZTSSefilmswithkesteritecrystalstructurearealsoobtainedattheannealingtemperaturesof500and550°C.Inparticularafterannealingat500°Cfor20min,theCZTSSefilmexhibitsasmooth,uniform,crack-free,andlarge-grainedtopographyandpossessesCu-poorandSn-richcomposition.Moreover,itshowsstrongopticalabsorptionfromvisibletonear-infrared(IR)region,anditsopticalbandgap(Eg)isfoundtobeabout1.44eV.
简介:Asafundamentalpropertyofnuclei,atomicmassesarewidelyusedinmanydomainsofscienceandengineering.Areliableatomicmasstablederivedfromtheexperimentaldata,wheretheatomicmassesandtherelevantexperi-mentalinformationcanbefoundconveniently,isinhighdemandbytheresearchcommunity.Tomeetthedemands,theAtomicMassEvaluation(AME)wasinitiatedin1950'sandaseriesofAMEmasstableshavebeenpublishedeversince.CurrentlytheAMEservestheresearchcommunitybyprovidingthemostreliableandcomprehensiveinformationrelatedtotheatomicmasses.ThenewatomicmassevaluationAME2016waspublishedintheMarchissueofChinesePhysicsCastwocom-plementarypapers[1;2].
简介:ThispaperpresentsabriefoverviewofCO2reformingofCH4(CRM)byvariousformsof'arc'plasma,whichismoresuitabletoCRM,andtheenergyefficiencyisusedtoevaluatedifferentplasmaprocessesspecifically.Accordingtothereportedresults,thearcthermalplasmawithbinodeexhibitedbetterperformance.Moreover,theplasmaCRMprocesswascomparedwiththereportedplasmasteamreformingofCH4(SRM)process,andtheresultsshowedthattheformerprocesshasadvantagesonenergyefficiencyandCH4consumption.Additionally,itisbelievedthattheplasmaCRMprocesswouldbecompetitivewiththeconventionalSRMprocessinbothenergyefficiencyandCO2emissiononcetheheatmanagementisemphasizedandtherenewablepowerisused.Finally,aconceptofplasmareactorforindustrialapplicationisproposed.
简介:摘要目的对比瑞芬太尼、芬太尼单独与联合应用于全麻的临床效果。方法选取2014年1月到2015年1月我院需实施胃肠道全麻手术的99例患者作为本次研究的对象,将患者依据麻醉方式分为甲、乙、丙三组,甲组应用芬太尼全麻,乙组应用瑞芬太尼全麻,丙组联合应用芬太尼与瑞芬太尼全麻,对比三组患者的血流动力学情况、苏醒时间以及用药量。结果甲组诱导时心率与平均动脉压要明显高于乙丙两组(P<0.05);乙组苏醒时心率与平均动脉压要明显高于甲丙两组(P<0.05);甲组苏醒时间要明显长于乙丙两组(P<0.05);丙组瑞芬太尼用量要明显少于乙组,芬太尼用量要明显少于甲组,有统计学差异(P<0.05)。结论三组全麻方法都能满足胃肠道手术要求,但联合应用芬太尼与瑞芬太尼全麻,术中能保持患者血流动力学稳定,患者能较快苏醒,可以有效减少用药量,值得在临床上大力推广。
简介:TheNaGd(WO_4)_2:Eu~(3+)phosphorswerepreparedbythemicroemulsionmediatedhydrothermalmethod.ThemorphologyandsizeofthesamplescouldbedependentonthepHintheinitialsolution.Thesephosphorsobtainedhadastrongabsorptionat395nmmatchingwiththepopularemissionofnear-UVLEDchips,andcouldemitintenseredlightat616nm.Thesmallellipsoid-likeparticlesorshortrodswereprovidedwithlargeparametersofoscillatorstrength?_2andasymmetryratio.Comparedtotheellipsoid-likephosphors,therod-likephosphorstookonstrongeremission,longerlifetimeandlargerquantumefficiency.Thisworkdemonstratedthattheone-dimensionNaGd(WO_4)_2:Eu~(3+)phosphorsmightbeamorefavorabledevicethanzero-dimensiononesforphotoluminescence.
简介:我们认识到NiCo2由激光照耀的O4nanomaterialsNiCo2有不同集中的O4暂停。结果表明同样准备的样品是有568nm和优异dispersity的最大的平均尺寸的需要的范围,它在0.30JDS的精力密度被获得)。Obwohl死ErkrankungenvieleGemeinsamkeitenaufweisen(Fiebersch浭湥慦獳湵?浉畭歮浯牰浯瑩楴牥湵?楢杲?浩敭?楥?牥???獥删獩歩????釧????????闧?郦????駥?釧?闦??駥?跧???闦?臧?臧????駥膹?郦?飧?蓦???釧?釧?蓦???跧?觧??跧?????觧?釧??闦??闦?觧?郧?闦???跧???釧????触?跧??趥觧?鷦??
简介:pH价值和Y2Y23-SiO2(Y-Si)泥浆>为Ti-6Al-4V投资扔的脸上衣的O3粉末和硅石大音阶的第五音被测量。Y-Si脸上衣系统做的壳的热行为被微分扫描热量计(DSC)调查,热gravimetric(TG)分析与集体spectrometry(MS)结合了,并且阶段转变被X光检查衍射(XRD)决定。热力量,剩余力量,线性扩大系数,和壳的穿的抵抗性能也被测试。微观结构和相互作用层的元素分发被分别地扫描电子显微镜(SEM)和精力散的分光计(版本)学习。microhardness测试者被申请microhardness。结果证明泥浆为至少60是稳定的?h。YZrO3的很小的数量低于1050被形成?普牯慭?楦汥?桴潥祲?畢?畯?敲?瑬?灡汰?畱污瑩瑡癩汥?潴愠眠摩牥挠慬獳漠?睴?楤敭獮潩慮?楤慬潴?牧癡瑩?桴潥楲獥?潆?慥档琠灹?景猠汯瑵潩獮眠?数晲牯?潨潬牧灡楨?敲潮浲污穩瑡潩?挠浯異吗??
简介:BackgroundAldosteroneblockerscouldreducetheincidenceofventriculararrhythmiasinmyocardialinfarction(MI)patientsbyregulatinghyperpolarization-activatedcyclicnucleotide-gatedchannel(HCN)expression.ButthemechanismunderlingHCNexpressionisunclear.MethodsEighteenratssurviving24hourspostMIwererandomlydividedinto3groups:MI,spironolactone,andspironolactone+antagomir-133(miRNA-133suppression).Shamgroupratshadasuturelooselytiedaroundtheleftcoronaryartery,withoutligation.HCN2andHCN4proteinandmRNAlevel,andmiRNA-133levelintheborderzoneofpost-MI1weekmyocardiumweremeasured.ResultsSpironolactonesignificantlyincreasedmiRNA-133levelsanddown-regulatedHCN2andHCN4atbothmRNAandproteinlevelsinpost-MIborderzonemyocardium.Antagomir-133reducedtheeffectsofspironolactoneonHCN2andHCN4proteinlevels.ConclusionsTheresultssuggestthatmiRNA-133isinvolvedinspironolactoneinducedHCNexpression,andpartiallycontributedtopost-MIventriculararrhythmias.
简介:目的研究结核患者与正常人Toll样受体TLR2的表达情况。方法选取肺结核(FFB)患者39例,结核性胸膜炎(TP)患者22例为研究组,38例健康者为对照组。通过流式细胞仪分析TLR2在结核病人中的活化的CD4+T细胞和静息CD4+T中及健康者中的表达,用实时定量PCR检测健康者和结核病人中的TLR2mRNA的相对含量。结果在活化的CD4+T细胞中rrLR2阳性cDfCDsT细胞,较静息CD4+T细胞表达较高,TLR2在结核病人中的活化的CD4+T细胞和静息CD4+T中的表达量都明显高于健康者(P〈0.001,P〈0.05);在结核病人中TLR2mRNA相对含量要明显高于健康者(P〈0.01)。结论对TLR2的测定对于结核病的诊断有一定指导意义,可作为于结核的诊断的辅助手段。
简介:一篇小说荧光灯为H2PO4-基于碳dots/Fe3+被设计并且制作合成。碳点被一个确定的一个壶综合热水的方法并且由传播电子显微镜,X光检查衍射计,紫外力的吸收分光计和荧光分光光度计描绘了。碳dots/Fe3+合成被碳点和FeCl3,的水的混合获得,它的荧光性质被荧光分光光度计描绘。碳点的荧光被水的Fe3+阳离子熄灭,导致碳dots/Fe3+的低荧光紧张合成。在另一方面,H2PO4-由化学反应减少了Fe3+的集中并且提高了碳dots/Fe3+的荧光合成。Stern-Volmer方程被介绍描述在合成的碳dots/Fe3+和H2PO4-,和好线性(R2=0.997)在H20.4-12公里的PO4-集中。