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简介：ＡＮＴＩＣＯＭＰＬＥＭＥＮＴＡＲＹＡＣＴＩＶＩＴＹＩＮＨＵＭＡＮＳＥＲＵＭＯＦＬＵＮＧＣＡＮＣＥＲＰＡＴＩＥＮＴＳＡＮＤＩＴＳＰＯＳＳＩＢＬＥＣＬＩＮＩＣＡＬＳＩＧＮＩＦＩＣＡＮＣＥＬｉｕＨｕｉｒｏｎｇ刘慧荣ＬｉａｎｇＦｅｎｇ梁峰ＺｈａｎｇＷｅｉｆ...

简介：SereralPd-SnO2/D3520andPd-PbO/D3520catalystswithPd/D3520,SnO2/D3520andPbO/D3520catalystsasreferencewerestudiedbymeansofIRandXPS.InteractionbetweenPdandthesecondmetalorbetweenmetalandsupportwasobserved.ResultsshowthatthereisastronginteractionbetweenPdandthesecondmetal,butthereisnotanobviousinteractionbetweenmetalandsupport.TheactiveconstituentisPd.HydrogenationactivityofthecatalystsisalteredbecauseoftheinteractionbetweenPdandthesecondmetal.TheactivityofthecatalysisforhydrogenationhasrelationtoouterlayervalenceelectrondensityofPd.

简介：Nanostructuredironoxyhydroxide（FeOOH）thinfilmshavebeensynthesizedusinganelectrodepositionmethodonanickelfoam（NF）substrateandeffectofairannealingtemperatureonthecatalyticperformanceisstudied.Theas-depositedandannealedthinfilmswerecharacterizedbyX-raydiffraction（XRD）,X-rayphotoelectronspectroscopy（XPS）,fieldemissionscanningelectronmicroscopy（FE-SEM）andlinearsweepvoltammetry（LSV）todeterminetheirstructural,morphological,compositionalandelectrochemicalproperties,respectively.Theas-depositednanostructuredamorphousFeOOHthinfilmisconvertedintoapolycrystallineFe2O3withhematitecrystalstructureatahightemperature.TheFeOOHthinfilmactsasanefficientelectrocatalystfortheoxygenevolutionreaction（OER）inanalkaline1MKOHelectrolyte.Thefilmannealedat200°Cshowshighcatalyticactivitywithanonsetoverpotentialof240mVwithasmallerTafelslopeof48mV/dec.Additionally,itneedsanoverpotentialof290mVtothedrivethecurrentdensityof10mA/cm2andshowsgoodstabilityinthe1MKOHelectrolytesolution.

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简介：以便区分充满的效果和暴烈的活动并且探索激发富有硅的铁矿石跟踪的活动(IOT)的方法，惰性的石英作为修正被引进标准，上好的影响，锻烧，热治好系统和一些另外的因素被红外调查，XRD，MIP，等等显微镜的方法。磨擦的试验性的结果表演和锻烧罐头仅仅改变SiO2,的非结晶的状态，IOT不在在房间温度下面治好的水泥举办暴烈的活动状况。热治好系统能刺激IOT的活动，特别压热器治好治好的臼系统能消费大量Ca(哦)2和难钙硅酸盐并且有更靠近的结构。当IOT粉末的特定的表面区域是800m2/kg,，30%水泥被IOT代替时，搽粉，有IOT的臼力量粉末比那甚至高与cementonly。

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：AbstractBackgrounds:Physical activity (PA) and sedentary behavior (SB) have been associated with mortality, while the joint association with mortality is rarely reported among Chinese population. We aimed to examine the independent and joint association of PA and SB with all-cause mortality in southern China.Methods:A cohort of 12,608 China Hypertension Survey participants aged ≥35 years were enrolled in 2013 to 2014, with a followup period of 5.4 years. Baseline self-reported PA and SB were collected via the questionnaire. Kaplan-Meier curves (log-rank test) and Cox proportional hazards regression were performed to evaluate the associations of PA and SB on all-cause mortality.Results:A total of 11,744 eligible participants were included in the analysis. Over an average of 5.4 years of follow-up, 796 deaths occurred. The risk of all-cause mortality was lower among participants with high PA than those with low to moderate level (5.2% vs. 8.9%; hazards ratio [HR]: 0.75, 95% confidence interval [CI]: 0.61-0.87). Participants with SB ≥ 6 h had a higher risk of all-cause mortality than those with SB <6 h (7.8% vs. 6.0%; HR: 1.37, 95% CI: 1.17-1.61). Participants with prolonged SB (≥6 h) and inadequate PA (low to moderate) had a higher risk of all-cause mortality compared to those with SB < 6 h and high PA (11.2% vs. 4.9%; HR: 1.67, 95% CI: 1.35-2.06). Even in the participants with high PA, prolonged SB (≥6 h) was still associated with the higher risk of all-cause mortality compared with SB < 6 h (7.0% vs. 4.9%; HR: 1.33, 95% CI: 1.12-1.56).Conclusions:Among Chinese population, PA and SB have a joint association with the risk of all-cause mortality. Participants with inadequate PA and prolonged SB had the highest risk of all-cause mortality compared with others.

简介：AIMTostudytheeffectofketoconazole(KTZ),aselectiveinhibitorofCYP3A,oninvivoandinvitrometabolicactivityofhepaticCYP3Ainratwithmidazolam(MDZ)asprobe,whichwasassessedbypharmacokineticparametersofMDZ.,andtoestablishasuitablemarkerorindicatorforestimatingdrugmetabolizingactivityofhepaticCYP3A.METHODS1.Invivostudy:SeveralloadingdosesofKTZpreparedinamixtureofPEG400andpropyleneglycol(9:1)wereadministratedthroughratsublingualveinfollowedbyconstantinfusionatdifferentratesthroughtailveinwithanattempttoachievecorrespondingsteady-stateplasmaconcentrationsinordertoattaincontinuousinhibitiononCYP3A.

简介：Thecharacterofthemagmaticrocksandoredeposits,formed-in’theregionsoftectonicmagmaticactivity(TMA)or"Diwa"dcpendsincertaindegreeonthebasementstructuretypes,andpartiallyonproportionsbetwccn"basalt~andgranitc-sedimentarylaycrthickncsses.Magma-andore-formationinTMA-structurcswcreconncctcdwithpowcrfulhcat

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简介：TheYuguangbasinisahalf-grabenbasininthebasin-rangetectoniczoneinnorthwestBeijing,locatedatthenorthernendoftheShanxigrabensystem,andtheYuguangbasinsouthernmarginalfault(YBSMF)controlstheformationofthisbasin.AlinearfaultescarpmenthasformedintheproluvialfanonthepiedmontfaultzoneoftheTangshankousegmentofYBSMF.Atrenchacrossthisescarpmentrevealsthreepaleo-earthquakeeventsontwoactivefaults.Onefaultrupturedatabout9kaforthefirsttime,andthenfaultedagainatabout7.3ka,causingtheformationandsynchronousactivityofanotherfault.Finally,theyfaultedforthethirdtime,butwecannotdeterminethefaultingtimeduetothelackofrelevantsurfacedeposition.Theaccumulativeverticaldisplacementofthesethreeeventsisabout8.1m.Weestimatethattheaveragerecurrenceperiodofthepiedmontfaultisabout1.7ka,andtheaveragesliprateofthepiedmontfaultisabout1.6mm/a.Wealsoestimatethereferencemagnitudeofeacheventaccordingtotheempiricalformula.

简介：CarbonsupportedPt(Pt/C)electrocatalystswerepreparedwithglucoseasprotectionagentandNaBH4asreductant.ThePtnanoparticlesdepositedoncarbonsupportpresentedreducedsizeandwelldispersityattributedtotheprotectioneffectofglucose.GlucoseabsorbedontheparticlesurfacewasreadilyremovedbywaterwashingwithoutleadingtoagglomerationofthePtnanoparticles.Theas-preparedPt/Celectrocatalystsshowedimprovedmassactivityformethanolelectrooxidationcomparedtothecatalystpreparedwithoutglucoseprotection.TheimprovedperformanceisattributedtothelargerelectrochemicalactivesurfaceareathusincreasedactivesitesonthePt/Celctrocatalystspreparedundertheprotectionofglucose.

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简介：ＩＮＦＬＵＥＮＣＥＯＦＺＩＮＣ，ＭＡＮＧＡＮＥＳＥＡＮＤＳＥＬＥＮＩＵＭＯＮＳＵＰＥＲＯＸＩＤＥＤＩＳＭＵＴＡＳＥＡＣＴＩＶＩＴＹＩＮＬＵＮＧＣＡＮＣＥＲＴＩＳＳＵＥＡＮＤＣＥＬＬＩＮＣＵＬＴＵＲＥＹｕＬｕｎｙｉｎ喻伦银；ＸｉａＤｏｎｇ夏东；（Ｄｅｐ...

简介：Forrecentyears,runoffgenerationandhydrologicalprocessesinHailiutuRiverbasinhavebeengreatlychangedbyclimatechangeandhumanactivity,especiallywaterandsoilconservationconstruction.Inthisstudy,thetrendsinprecipitation,evapotranspiration(ET)andriverrunoffaswellastheeffectsofprecipitationchangeandhumanactivityonrunoffvariationhavebeenstudied.Theresultsshowedthatduring1960-2000,annualprecipitationandriverrunoff,monthlyprecipitationandETinSeptemberandOctoberaswellasmonthlyrunoffinallmonthsshowedasignificantdecrease.Inaddition,peakflowandbaseflowhadalargedecrease.Underthejointinfluenceofprecipitationchangeandhumanactivity,themeanannualrunoffdecreasedby35millionm3fromthebaselineperiod(1960-1985)tothechangeperiod(1986-2000),whichaccountedfor60.9%and39.1%ofthetotalrunoffdecrease,respectively.Precipitationchangeplayedaprimaryroleinthedecreaseofannualrunoffwhereashumanactivity,particularlywaterandsoilconservationconstruction,alsohadremarkableimpactsonrunoffvariation.