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简介：Theeffectsofheatlossonthestructureoflaminarflamelets,whicharetheconstitutiveelementsofturbulentflamesunderthemostcommonoperatingconditions,areinvestigatedfortypicalaeronauticalgas-turbineoperatingconditionsattake-off.Themagnitudeofheatlossisquantifiedviathe"enthalpydefect"measuredwithrespecttoanadiabaticflame.Aproceduretogeneratelaminarflameletswithanassignedenthalpydefectattheboundariesisdevisedandappliedtononpremixedpropane/airflames,aspropanereproducestheessentialfeaturesofhigherhydrocarboncombustion.Itisfound,contrarytocommonlyheldbeliefs,thattheenthalpydefecthasasignificanteffectontheconcentrationnotonlyofminorspecies,butalsoofmainreactionproducts.Sucheffectsarefoundingeneraltobemorepronouncedforfuel-richconditions.Animpactisanticipatedontheformationrateofnitricoxides.Theeffectsofscalardissipationratearealsodiscussed.

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简介：Superoxidedismutase(草皮)是包括海洋的无脊椎动物在各种各样的有机体对反应的氧种类在抗氧化剂小径玩第一根防卫线的关键抗氧化剂酶。在那里主要存在二种特定的形式，Cu/Zn-SOD(SOD1)和Mn草皮(SOD2)，在优核质。草皮被知道被许多环境stressors并发地调制。由使用中央合成试验性的设计和反应表面方法，关节水完成温度(18-34栠杩?潨潭潬祧眠瑩?湫睯?湩敶瑲'O慲整洠汵楴爭灥慥?琭票潭楳獮

简介：在地球温度的变化在全球碳周期上有重要影响在不同时间规模变化，然而，有一个简单计划的如此的影响传统地被认为确定困难。这里，我们显示出那，由合并一个温度敏感参数(1.64ppm年-1М

简介：Therearenumerousstudiescomparingdifferentkindsofenvironmentaltaxesandstandards.However,formsofenvironmentalstandardsfocusedbyformerresearchersareusuallyquantitybasedlimits/standards(e.g.poundsperdayorpoundsperunitofoutput).Concentration-basedemissionstandard(e.g.milligramsperliterofwastewater)asoneimportantformofenvironmentalstandardhasnotbeengivenmuchattention.Inthisarticle,comparableestimatesoftheirprobableeffectonenterprisepollutionreductionwillbedevelopedforconcentrationbasedeffluentstandards,effluenttaxes,andacombinationofboth.Alinearsimulationmodelisusedtoclearlyandobviouslycomparetheeffectsofeffluenttaxesandconcentration-basedstandardswithinthesamefigure.Withonedetailedapplicationtothepaperindustry,someenlightenmentandconclusions-aswellasthegeneralapplicabilityoftheseprinciples-arethenprovided:Underthesameeffluenttaxrate,enterprises,groups,andindustriesthatarecleanerwillreducemorepollutantsthanthosethathavehigherpollutantabatementcosts.Itisrecommendedthateffluenttaxesaresetbyavoidingcuttingitevenatonestrokeandconsideringthefeasibilityofpollution-reducingtechnologyinvariousindustries.ItisnecessarytoreduceMACofenterprisestobetterstimulateenterprises’orindustries’emissionreductionbypreferentialmeasures,suchashightaxratecoordinatedbyspeedingupthedepreciationofenvironmentalprotectionequipment.

简介：YbF2.357,YbF3,Ba2YbF7,andBa2upconversionnanocrystalsdopedwithemitterEr3+ionweresynthesizedinthesamesolventsystemjustwithchangingthemolarratioofBa2+toYb3+intheprecursor,whichcorresponedtothecrystalphasesofrhombohedral,orthorhombic,tetragonal,andcubic,respectively.Allthesamplesemittedboth660nmredlightand543/523nmgreenlightwhichoriginatedfromEr3+-4fnelectronictransitions4F9/2-4I15/2and4S3/2/2H11/2-4I15/2,respectively.ItwasworthmentioningthatYbF3:Er3+,Ba2YbF7:Er3+,andBaF2:Er3+couldemitdazzlinglybrightlightevenundertheexcitationofa980nmCWlaserwithoutputpowerof0.1W.Upconversionemissionmechanismanalysisindicatedthattheintensityratioofredtogreenlighthighlydependedonthesynergisticeffectofcrystalstructure,concentrationquenching,andparticlesize,butwerenotsensitivetocrystallinityaspreviouslyreportedforNaLnF4（Ln=lanthanide）.

简介：Cr的Nanopowder:Cr的GGG和nanopowder，Nd:有从0.1at.%到1.5at.%的Cr3+的不同集中的GGG被大音阶的第五音胶化方法用醋酸和乙烯乙二醇综合。热gravimetric分析和微分扫描热量测定(TGA-DSC)，X光检查衍射(XRD)和光致发光光谱学被用来描绘粉末。当在1000点对待时，雏晶尺寸是大约58nm?????????????????猯灵?匠?猼'T资???猼灵?????????猯'T??猼灵????￣?????猯'T????猯灵??猼'T?????吗????????????????‵渠????????浮？？