简介：Apreliminaryinvestigationonshort-wavelengthablationmechanismsofpoly(methylmethacrylate)(PMMA)andpoly(1,4-phenyleneetherether-sulfone)(PPEES)byextremeultraviolet(EUV)radiationat13.5nmusingatable-toplaserproducedplasmafromagas-pufftargetatLLG(Gttingen)andat46.9nmbya10HzdesktopcapillarydischargelaseroperatedattheInstituteofPhysics(Prague)ispresented.Ablationofpolymermaterialsisinitiatedbyphotoinducedpolymerchainscissions.TheablationoccursduetotheformationofvolatileproductsbytheEUVradiolysisremovedasanablationplumefromtheirradiatedmaterialintothevacuum.Ingeneral,cross-linkingofpolymermoleculescancompetewiththechaindecomposition.Bothprocessesmayinfluencetheefficiencyandqualityofmicro(nano)structuringinpolymermaterials.WavelengthisacriticalparametertobetakenintoaccountwhenanEUVablationprocessoccurs,becausedifferentwavelengthsresultindifferentenergydensitiesinthenear-surfaceregionofthepolymerexposedtonanosecondpulsesofintenseEUVradiation.

简介：Carbonofhumusacids(HSAC)anddissolvedorganiccarbon(DOC)arethemostactiveformsofsoilorganiccarbon(SOC)andplayanimportantroleinglobalcarbonrecycling.WeinvestigatedtheconcentrationsofHSAC,water-solubleorganiccarbon(WSOC),hotwater-extractableorganiccarbon(HWOC)andSOCinsoilsunderdifferentvegetationtypesoffourcopperminetailingssiteswithdifferingvegetationsuccessiontimeperiodsinTongling,China.TheconcentrationsofHSAC,WSOC,HWOCandSOCincreasedwithvegetationsuccession.WSOCconcentrationincreasedwiththeaccumulationofSOCinthetailings,andalinearlypositivecorrelationexistedbetweentheconcentrationsofHSACandSOCinthetailings.However,thepercentagesofHSACandDOCintheSOCdecreasedduringvegetationsuccession.TherateofSOCaccumulationwashigherwhenthesuccessiontimewaslongerthan20years,whereasthespeedsofsoilorganicmatter(SOM)decompositionandhumificationwereslow,andtheconcentrationsofHSACandDOCincreasedslowlyinthetailings.Thepercentageofcarbonofhumicacid(HAC)inHSACincreasedwithvegetationsuccession,andthevaluesofhumificationindex(HI),HAC/carbonoffulvicacid,alsoincreasedwiththeaccumulationofHSACandSOCinsoilsofthetailingssites.However,theHIvalueintheeachofthetailingswaslessthan0.50.ThehumificationrateofSOMwaslowerthantheaccumulationrateofSOM,andthelevelofsoilfertilitywasstillverylowinthetailingsevenafter40yearsofnaturalrestoration.

简介：Silvernanoprisms(AgNPs)affecttheperformanceoforganicsolarcells(OSCs)indifferentwaysdependingontheirpositionsinthedevice.Toinvestigatethisissue,weincorporateAgNPsindifferentpositionsofOSCsandcomparetheirperformance.Thepowerconversionefficiency(PCE)isimprovedby23.60%to3.98%whentheAgNPsareincorporatedinfrontoftheactivelayer.Ontheotherhand,whenAgNPsareincorporatedinthebackoftheactivelayer,theshort-circuitcurrentdensity(JSC)isimprovedby17.44%to10.84mA/cm2.However,ifAgNPsareincorporatedintheactivelayer,bothopen-circuitvoltage(VOC)andJSCaredecreased.Wediscussthepositioneffectonthedeviceperformance,clarifytheabsorptionshadowandexcitonrecombinationcausedbyAgNPs,andfinallyindicatethattheoptimalpositionofplasmonicAgNPsisinfrontoftheactivelayer.

简介：从淡水的溶解有机物(DOM)，中间咸度，并且在Jiulong河河口的海水endmember样品，中国是用有10-kDa膜的跨流动的ultrafiltration的fractionated。胶体的有机物(COM；10kDa-0.22m)retentate，低分子的重量(LMW)DOM(<10kDa)渗入，并且体积样品用吸收光谱学和三维的荧光excitation-emission-matrix光谱学被分析。COM的紫外可见的系列很类似于获得为的那些渗入并且体积样品，与增加波长monotonically减少。大多数发色团的DOM(CDOM，表示了为吸收系数一355)发生在LMW部分，当在胶体的部分的CDOM的百分比比在海水endmember(6.8%)在淡水endmember(13.4%总数)是实质地更高的时。当有COM部分的移动和在中间咸度的样品的permeate部分的并发的增加时，体积CDOM在河口显示出保守混合行为，暗示胶体的CDOM的部分被转变成LMWCDOM。二个象腐殖一样部件(C1：<250，325/402nm；并且C2：265，360/458nm)并且一个像蛋白质的部件(C3：275/334nm)用平行因素分析被识别。分别地，到体积样品的COM部分的C1，C2，和C3部件的贡献是2.5%8.7%，4.8%12.6%，和7.4%14.7%揭示那荧光灯DOM主要在LMW部分发生在Jiulong河河口。在retentate的C1和C2部件并且渗入样品显示出保守混合行为，而是C2/C1的紧张比率比的在retentate是更高的在为所有咸度样品的permeate部分，证明腐殖的部件是更多比fulvic部件在COM充实。C3/(C1+C2)的紧张比率比在permeate部分为在retentate是高得多的中间咸度并且海水样品，表明像蛋白质的部件是相对，更多比象腐殖一样部件在COM充实。到在为海水endmember在淡水endmember从14%增加到72%的retentate的全部的荧光的像蛋白质的部件(C3)的贡献取样，清楚地在混合COM的过程的河口期间与像蛋白质的部件相比由象腐殖一样部件显示优势的变化。

简介：经由到河口的河的器官的碳的运输是在全球碳周期的一个重要geochemical过程。这份报纸论述体积总数从Dongjiang集水的器官的碳(TOC)到邻近的Humen插头，并且在表面沉积为有机物的来源作为指示物讨论13C的适用性和碳的比率到氮(C/N)。调查结果证明在夏天的器官的碳集中比在冬季高。TOC的一个提高的趋势在调查，和最高吝啬的价值沿着河发生了到Humen插头溶解，特别的器官的碳(DOC279摩尔L1和POC163摩尔L1)在夏天洪水流动在城市的三角形的区域被观察。冬季样品有大量13C和C/N(13C24.6～30.0，C/N413)，并且夏天一稍微变化了(13C24.2～27.6，C/N618)。当结果建议在upstream-delta-outlet的三个地区的那个停靠港主导地来自河岸土壤，浮游植物和农业C3在冬季种，而主要来源在夏天从河岸和红树属植物土壤。而且，人为的污水输入有11%和7%贡献到停靠港在三角形并且插头。伴有季节的淡水变化，浮游植物生产和降级的运输，和移动行为引起了器官的碳集中的变化。结果也发现在Dongjiang的那TOC出口体积是在干燥流动的Humen流动的约一个季度，并且人为的活动显著地影响了河出口贡献。

简介：Acyano-substituteddiarylethlenederivativeaggregation-inducedemission(AIE)dyewithtwoaminoend-groupsand4,4'-(hexafluoroisopropylidene)diphthalicanhydridewerefacilelyincorporatedintoredfluorescentorganicnanoparticles(FONs)viaroomtemperatureanhydridering-openingpolymerizationunderanairatmosphere.TheseobtainedRO-HFDAFONswerecharacterizedbyaseriesoftechniquesincludinggelpermeationchromatography,Fouriertransforminfraredspectroscopy,sizedistributionandzetapotentialmeasurements,UV-Visabsorptionspectrum,fluorescentspectroscopyandtransmissionelectronmicroscopy.BiocompatibilityevaluationandcelluptakebehaviorofRO-HFDAFONswerefurtherinvestigatedtoexploretheirpotentialbiomedicalapplication.WedemonstratedthatsuchFONsshowedhighwaterdispersibility,stableuniformsphericalmorphology(150-200nm),broadexcitationband(350-605nm),intenseredfluorescence(627nm)andexcellentbiocompatibility,makingthempromisingforcellimagingapplications.

简介：在这研究，有机物(OM)和在来自北华南海(SCS)的表面沉积的类脂化合物biomarkers的内容和分发被识别揭示有细密纹理的沉积的来源和运输。有机物和类脂化合物biomarkers在北SCS展出了不同空间变化。来自在西南的台湾的珍珠河和一些多山的河的陆上的分泌物可以在相应的海区域贡献相对高的有机物。不饱和的丰满的酸相当或相同事物的察觉建议了海藻或细菌的OM贡献到表面沉积。类脂化合物biomarkers的composites和分发从陆上的植物显示他们的混合来源，海洋的水藻并且细菌。和在沉积的泥土矿物质composites的证明，结果建议包括广东沿海的水流和自台湾东面的菲律宾海流向日本的暖流电流，水流在北SCS控制陆上的沉积和沉积环境的运输和分发。

简介：Metal-organicframeworks(MOFs)haveattractedmuchattentionasadsorbentsfortheseparationofCO2fromfluegasornaturalgas.Here,atypicalmetal-organicframeworkHKUST-1(alsonamedCu-BTCorMOF-199)waschemicallyreducedbydopingitwithalkalimetals(Li,NaandK)andtheywerefurtherusedtoinvestigatetheirCO2adsorptioncapacities.Thestructuralinformation,surfacechemistryandthermalbehaviorofthepreparedadsorbentsampleswerecharacterizedbyX-raypowderdiffraction(XRD),thermo-gravimetricanalysis(TGA)andnitrogenadsorption-desorptionisothermanalysis.TheresultsshowedthattheCO2storagecapacityofHKUST-1dopedwithmoderatequantitiesofLi+,Na+andK+,individually,wasgreaterthanthatofunmodifiedHKUST-1.ThehighestCO2adsorptionuptakeof8.64mmol/gwasobtainedwith1K-HKUST-1,anditwasca.11%increaseinadsorptioncapacityat298Kand18barascomparedwithHKUST-1.Moreover,adsorptiontestsshowedthatHKUST-1and1K-HKUST-1displayedmuchhigheradsorptioncapacitiesofCO2thanthoseofN2.Finally,theadsorption/desorptioncycleexperimentrevealedthattheadsorptionperformanceof1K-HKUST-1wasfairlystable,withoutobviousdeteriorationintheadsorptioncapacityofCO2after10cycles.

简介：Theworldwideinterestinthegutmicrobiomeanditsimpactontheupstreamliverhighlightacriticalupsidetobreathresearch:itcanuniquelymeasureotherwiseunmeasurablebiology.Bacteriamakegases[volatileorganiccompounds(VOCs)]thataredirectlyrelevanttopathophysiologyofthefattyliverandassociatedconditions,includingobesity.MeasurementoftheseVOCsandtheirmetabolitesintheexhaledbreath,therefore,presentanopportunitytosafelyandeasilyevaluate,onbothapersonalandapopulationlevel,someofourmostpressingpublichealththreats.Thisisanopportunitythatmustbepursued.Todate,however,breathanalysisremainsaslowlyevolvingfieldwhichonlyoccasionallyimpactsclinicalresearchorpatientcare.Onemajorobstacletoprogressisthatbreathanalysisisinherentlyandemphaticallymutli-disciplinary:itconnectsengineering,chemistry,breathmechanics,biologyandmedicine.Unbalancedorincompleteteamsmayproduceinconsistentandoftenunsatisfactoryresults.Asecondimpedimentisthelackofawell-knownstepwisestructureforthedevelopmentofnon-invasivediagnostics.Asaresult,thebreathresearchlandscapeisrepletewithorphanedsingle-centerpilotstudies.Often,importanthypothesesandkeyobservationshavenotbeenpursuedtomaturation.ThispaperreviewstherationaleandrequirementsforbreathVOCresearchappliedtothegut-fattyliveraxisandofferssomesuggestionsforfuturedevelopment.

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简介：Wefabricatewhitephosphorescentorganiclight-emittingdiodes(PHOLEDs)withthreedopantsanddoubleemissivelayer(EML)toachievecolorstability.ThewhitePHOLEDsuseFIrpicdopantforblueEML(BEML),andIr(ppy)3:Ir(piq)3dopantsforgreen:redEML(GR-EML)withN,N′-dicarbazolyl-3,5-benzene(mCP)ashostmaterial.ThicknessesofB-EMLandGR-EMLareadjustedtoformanarrowrecombinationzoneattwoEML’sinterfaceandchargetrappinghappensinEMLaccordingtowidehighestoccupiedmolecularorbitaland/orlowestunoccupiedmolecularorbitalenergybandgapofmCPandsmallerenergybandgapofdopants.ThetotalthicknessofbothEMLsisfixedat30nminthedevicestructureofITO(150nm)/MoO3(2nm)/N,N′-diphenyl-N,N′-bis(l-naphthyl-phenyl)-(l,l′-biphenyl)-4,4′-diamine(70nm)/mCP:Firpic-8.0%(12nm)/mCP:Ir(ppy)3-3.0%:Ir(piq)3-1.5%(18nm)/2′,2′,2′′-(1,3,5-benzinetriyl)-tris(1-phenyl-1-H-benzimidazole)(30nm)/8-hydroxyquinolinolato-lithium(2nm)/Al(120nm).WhitePHOLEDshows18.25cd/Aofluminousefficiencyandwhitecolorcoordinatesof(0.358and0.378)at5000cd/m2andcolorstabilitywithslightCIEXYchangeof(0.028and0.002)asincreasingluminancefrom1000to5000cd/m2.

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