简介：摘要随着经济不断发展，H2S废气的处理工艺已经得到不断更新，大大提高了H2S气体净化的工作效率，在多个领域得到广泛应用。早期使用的物理法和化学法，已经不能很好的满足现代发展需求，无法达到快速处理H2S气体的目的。本文就生物法处理高浓度H2S废气所需的仪器和设备、具体处理工艺等进行介绍，对生物法处理高浓度H2S废气的结果进行分析和探讨，以为高浓度H2S废气处理提供更多可参考依据。

简介：QuantumdynamicscalculationsforthetitlereactionH(2S)+S2(X3-Σg)→SH(X2Π)+S(3P)areperformedbyusingagloballyaccuratedoublemany-bodyexpansionpotentialenergysurface[J.Phys.Chem.A1155274(2011)].TheChebyshevrealwavepacketpropagationmethodisemployedtoobtainthedynamicalinformation,suchasreactionprobability,initialstate-specifiedintegralcrosssection,andthermalrateconstant.Itisfoundnotonlythatthereisareactionthresholdnear0.7eVinbothreactionprobabilitiesandintegralcrosssectioncurves,butalsothatboththeprobabilityandcrosssectionincreasefirstlyandthendecreaseasthecollisionenergyincreases.Theexistenceoftheresonancestructureinboththeprobabilityandcrosssectioncurvesisascribedtothedeeppotentialwell.Thecalculationoftherateconstantrevealsthatthereactionoccurringonthepotentialenergysurfaceoftheground-stateHS2isslowtotakeplace.

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简介：汉语原生介词源于实词性词语,次生介词源于介词或介词与其他词的组合。次生介词,构成类型主要有＂介·介、动/名·介＂等;生成机制主要是同层结构词汇化和跨层结构词汇化;生成动因主要是使语义精细化、加强语义和协调韵律;语法化意义是可以重新描述语法化斜坡,证明介词语法化发展不一定是语义进一步虚化,揭示介词发展历史层次性。

简介：摘要目的探讨H2O2在美容切口换药中的应用。方法选择2011年3月～2014年3月行各种美容术患者354例，随机分成对照组（177例）和观察组（177例），观察组先3%H2O2处理，再用等渗盐水，最后用PVP-I棉签消毒。对照组用等渗盐水棉签，再用PVP-I棉签消毒。观察指标拆线时间推后，切口裂开，切口红肿，血痂积聚，瘢痕形成(>2mm)。结果观察组的拆线时间推后，切口裂开，切口红肿，血痂积聚，瘢痕形成的例数及所占百分率明显低于对照组，两组间差异均具有统计学意义(P<0.05)。结论3%H2O2对美容切口愈合有一定作用，值得推广应用。

简介：如今,大屏智能电视开始逐渐占领我们的客厅,成为我们生活中不可或缺的一部分。但是,电视与手机、电脑不同,它的距离较远,操作起来也较为不便：使用遥控器功能限制太大,使用无线鼠标高度又非常难受。那要如何是好呢？其实,我们完全可以用飞鼠来解决这个问题。本期为淀粉们推荐的是乐帆飞鼠F2S。

简介：利用水热方法制备了一个新的过渡金属镉配合物[Cd（1，3-BDC）（L）（H2O）2]·H2O（1，3-H2BDC=间苯二甲酸，L=2-（3-吡啶基）-1H-苯并咪唑），并通过元素分析、红外光谱和X-射线单晶衍射方法确定了该配合物的晶体结构．结构分析表明该配合物属于单斜晶系，P21／c空间群，晶胞参数a=1．01641（6）nm，b=2．08842（12）nm，C=1．00l38（6）nm，β=106．3360（10）°，V=2．0398（2）nm3，Z=4，R1=0．0207，wR2=0．494．配合物中CdⅡ“离子与L配体的1个吡啶N原子、1，3-BDC的4个氧原子和2个配位水的O原子配位，形成七配位的扭曲十面体结构．配体1，3-BDC的桥连相邻的CdⅡ离子形成一维聚合物链，相邻链间通过氢键和π…π作用形成三维超分子网络，并对该配合物的热稳定性和荧光性质进行了研究．

简介：HistoricaldataregardingZhangHeng'sseismoscopeisnotsingularproof.Actually,thefourearliesthistoricaldocuments,i.e.,ContinuationofHistoriographyofHanDynasty,HistoriographyoftheLaterHan,BookoftheLaterHanandDingRecordallhaverelevantrecordsofitsstructure,size,principle,responsetoearthquakeandactualapplications.Thesefiveaspectsaresupportedbyarchaeologicalresearch,unearthedculturalrelics,historicalearthquakesandmodernseismologicalstudy.Thesehistoricalmaterialscontainagreatdealofspecificinformationaboutthisancientseismoscope.Inconclusion,theauthenticityandreliabilityofZhangHeng'sseismoscopeareverified.

简介：突发性灾难总是不期而至，尤其是在政局动荡的地区。7月17日，马来西亚航空公司MH17次航班在靠近俄罗斯的乌克兰边境地区坠毁,机上298人全部遇难。在飞机失事地区，乌克兰政府军和民间武装力量的武装冲突,本已令乌克兰和国际社会头疼,而由此引发的飞机失事的次生灾难更让世界震惊。

简介：研究了MWCNT－H2O纳米流体的光学及光热特性，利用紫外-可见-近红外分光光度计结合积分球原理测试了不同质量分数的纳米流体在太阳能全波段（250nm＜λ＜2500nm）的透射率。利用太阳辐射对纳米流体的光热转换特性进行了测试。实验结果表明：纳米流体的透射率明显低于水的，并且纳米流体的透射率随着粒子质量分数的增加而降低。纳米流体（质量分数为0.02%）的最高温度比水提高了31.87%，集热量比水增加了54.14%。MWCNT－H2O纳米流体有望用在直接吸收式太阳能集热系统中。

简介：印度发展最快的卫星广播公司部署私有云,博科大幅提升其数据中心网络印度增长最快的直接到户（DTH）卫星广播公司Videocond2h选择部署博科R以太网矩阵解决方案来改造其数据中心网络。作为Videocon工业（BSE：511389,NSE：VIDEOIND）的分公司,Videocond2h将在其现有和在建的数据中心内部署基于创新的博科VCSFabric技术的博科VDX交换机，全面支持其业务的持续快速增长。

简介：ThreeseriesofCeO2/CuOsampleswerepreparedbyimpregnationmethodandcharacterizedbyXRD,N2adsorption-desorption,temperatureprogrammedreduction(TPR),XPSandTEMtechniques.IncomparisonwiththesamplespreparedwithCuOasinitialsupport,thesampleswithCu(OH)2asinitialsupporthavehigherreducibilitiesandsmallerrelativeTPRpeakareas,andalsolargerspecificsurfaceareasatcalcinationtemperaturesof400℃–600℃.Asaresult,Cu(OH)2isbetterthanCuOasinitialsupportforpreferentialoxidationofCOinexcessH2(CO-PROX).Thebestcatalyticperformancewasachievedonthesamplecalcinedat600℃andwithanatomicratioofCe/Cuat40%.XPSanalysesindicatethatmoreinterfacelinkagesCe-O-Cucouldbeformedwhenitwascalcinedat600℃.AndtheatomicratioofCe/Cuat40%ledtoaproperreducibilityforthesampleasillustratedbytheTPRmeasurements.

简介：采用扫描电镜、能谱仪以及X射线衍射仪对具有WC＋β（β为钴基粘结相）两相结构的WC-11Co-0.71Cr3C2-0.06RE（RE为含La、Ce、Pr、Nd的混合稀土）硬质合金烧结体表面进行观察与分析。结果表明，在烧结过程中合金中的La、Ce、Pr、Nd通过定向迁移与烧结炉内气氛中的S、O等杂质元素结合，在合金烧结体表面形成RE2S3（主）和RE2O2S（少量）弥散相。从合金中Cr3C2的热力学稳定性、Cr在Co中的溶解度特性以及稀土原子激发等3个方面，对稀土迁移活性的激发机制和稀土原子的定向迁移机制进行分析与讨论。

简介：TheesterificationoflauricacidwithmethanolcouldbeefficientlycatalyzedbyZrOCl2·8H2O,andthisreactionwasstudiedtodevelopagreenmethodforbiodieselproduction.Theinfluencingfactors,suchasamountofcatalyst,reactiontimeandmolarratioofacidtomethanol,wereinvestigated.TheresultsindicatedthattheZrOCl2·8H2Ocatalystshowedhighcatalyticactivity,andgavea97.0%methyllaurateconversionrateunderthefollowingoptimizedconditions,viz.:alauricacid/methanolmolarratioof1:10,acatalystdosageof4%,andareactiondurationof2hatmethanolrefluxingtemperature.Thecatalystcouldbeeasilyrecoveredwhileitsactivitycouldbewellretainedafterthreecycles.TheZrOCl2·8H2Ocatalystalsoexhibitedexcellentcatalyticactivityfortheesterificationofdifferentfreelong-chainfattyacids(includingnonedibleoilswithhighacidvalue)withdifferentshortcarbonchainalcohols.Therefore,theZrOCl2·8H2Ocatalysthasgoodpotentialforthesynthesisofbiodieselfromlow-costfeedstockssuchaswastevegetableoilsandnon-edibleoils.

简介：<正>1IntroductionTheundergroundbrineresourcesdistributingwidelyinSichuanBasin,Chinahavedrawnworldwideattentionduetotheirunusualelementabundanceandexcellentquality.

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简介：EstablishingpositiveandurgenttargetsforCO2reductionandemissionpeak,andpromotingenergyconservationandenergystructureadjustmentareamongthestrategiestoaddressglobalclimatechangeandCO2emissionsreduction.Theyarealsomeanstobreakthroughtheconstraintsofdomesticresourcesandenvironment,andinternalneeds,toachievesustainabledevelopment.Generallyspeaking,acountry’sCO2emissionpeakappearsafterachievingurbanizationandindustrialization.Bythen,connotativeeconomicgrowthwillappear,GDPwillgrowslowly,energyconsumptionelasticitywilldecrease,andenergyconsumptiongrowthwillslowdown-dependentmainlyonnewandrenewableenergies.Fossilfuelconsumptionwillnotincreasefurther.WhenCO2emissionreachesitspeak,theannualreductionrateofCO2intensityofGDPisgreaterthanGDPannualgrowthrate;andtheannualreductionrateofCO2intensityofenergyuseisgreaterthantheannualgrowthrateofenergyconsumption.Therefore,threeimportantapproachestopromotionofCO2emissionpeakcanbeconcluded:maintainingreasonablecontrolofGDPgrowth,strengtheningenergyconservationtosignificantlyreducetheGDPenergyintensity,andoptimizingtheenergymixtoreducetheCO2intensityofenergyuse.Byaround2030,Chinawillbasicallyhavecompleteditsrapiddevelopmentphaseofindustrializationandurbanization.ConnotativeeconomicgrowthwillappearwiththeaccelerationofindustrialstructureadjustmentThetargetofGDPenergyintensitywillstillbetomaintainanaverageannualreductionof3%orhigher.Theproportionofnon-fossilfuelswillreach20-25%,andtheaimwillbetomaintainanaverageannualgrowthrateof6-8%.Thetotalannualenergydemandgrowthof1.5%willbesatisfiedbythenewlyincreasedsupplyofnon-fossilfuels.TheannualdeclineinCO2intensityofGDPwillreach4.5%orhigher,whichiscompatiblewithanaverageannualGDPgrowth

简介：对于方程Φ（n）＝S（n11），Φ2（n）＝S（n11）进行了研究，并得到了这两个方程的所有正整数解，其中Φ（n）为Euler函数，Φ2（n）为广义Euler函数，S（n）为Smarandache函数。

简介：Ceriasphereswithdifferentsizesandsulfurizedproductswithcorrespondingmorphologywerepreparedbyhydrothermalandgas-solidreactionmethodat600–800°CunderCS2atmosphereforashorttime,respectively.Dimensionaleffectinpreparationofγ-Ce2S3wasfirstlyinvestigatedbymeansoftechniquessuchasscanningelectronmicroscopy(SEM),X-raydiffraction(XRD),thermalgravimetricanalysis(TGA)andspectrophotometer.Theresultsshowedthatwhenceriananoparticleswithsmallsizewereusedasprecursors,theγ-Ce2S3couldbepreparedatthelowertemperatureandthebadlysinteredproductswereobtained;whenceriananoparticleswithlargesizewereemployedasprecursors,pureγ-Ce2S3wasdifficultlyobtainedevenifthetemperaturewasupto800°Candtheproductstendedtokeeptheiroriginalsize.Theheat-resistancepropertyoftheγ-Ce2S3withlargesizewasbetterthanthesmallerone,andthepureγ-Ce2S3preparedfromprecursorwithsmallsizehadagoodpigmentaryperformance.

简介：TheemergenceofB2Belectronicmarketshasgreatlychangedtherelativebargainingpowerofbuyersandsellers.Westudytheequilibriummarketstructureinabuyer’smarket.Wefindthatbuyer-controlledB2BmarketsandneutralB2Bmarketshavedifferentequilibriumstructures,andtheemergenceofB2Bmarketswillincreasesocialwelfare,butitseffectonbuyersandsellerswillbedifferent:B2Bmarketsincreasetheconsumersurplusoftheendmarket,buttheireffectsonbuyerandsellerprofitsaremoderatedbytherelativebargainingpowerofbuyersandsellers.TheprofitsofthesidewithmuchweakerbargainingpowerwilldecreaseduetotheintroductionofB2Bmarkets.