简介：通过三步合成(E)-二(对3-硝基苯甲酸)乙烯(C16H10N2O8)配体,并由此通过溶剂热法合成金属有机框架材料Zn2(EBNB)2(BPY)2·2H2O;采用x射线单晶衍射分析、红外光谱(IR)和热重分析(TG)等对所得结构进行表征,并测试其荧光性能;以洛贝林为模型药物,研究了Zn2(EBNB)2(BPY)2·2H2O对该药物的载药及体外释药性能。研究结果说明,Zn2(EBNB)2(BPY)2·2H2O对洛贝林的最高载入量达0.355g/g,载药体系的体外释药为明显的两相模式。体外细胞毒性实验结果表明,Zn2(EBNB)2(BPY)2·2H2O具有良好的生物相容性。
简介：andthereductionofpublicandsocialexpenses.Economistsmaynotnecessarilysharetheeconomicandsocialinterestsofthetruebelieversandmayhaveavarietyofindividualpsychicstatesregardingtheeconomicandsocialeffectsoftheutopiawhichtheycloakwithmathematicalreason.Nevertheless,orbetteryetthesupranationalstate-aEuropeanstateonthewaytowardaworldstate-capableofeffectivelycontrollingandtaxingtheprofitsearnedinthefinancialmarketsand,onreservesofsocialcapitalthatprotectanentireportionofthepresentsocialorderfromfallingintoanomie.Thissocialcapitalisfatedtowitheraway-althoughnotintheshortrun-ifitisnotrenewedandreproduced.Butthesesameforcesof"conservation"
简介：Therearepowerfulpoliticalobstaclesbetweenpeople.Themainobstaclescomefromthesocialdemocraticmovement.IfwesucceedinovercomingtheseitwillleadtoagenuineThirdWaywhichwillbemuchmoreradical.Weneedtobuildtheleftoftheleft.Intheecologymovementyouhavepeoplewhoarereallyontheleft--evenamongtheCommunistParty,InFrancewehavethistraditionofworkerismwhichisanti-intellectual.Theunionsareveryhostiletointellectualsandtheintellectualsareverydistantfromworkers.In1968itwasveryvisible.NowforthefirsttimebecauseofthefailureofSovietMarxismwearefreefromthat.SoIcanspeakwithaCGTofficialasIamspeakingtoyou.Theyareveryopen.Inasenseintellectualslikemedidnotexist20yearsago.PeoplelikeSartreandFoucaultweresympathetictothemovement,Forcesotherthantheleftaretryingtogainahearing.SoweseetheHaiderphenomenoninAustria.Buthehasnotgoneunchallenged.TherecreationofatrueleftwingmovementwillbethemaininstrumentofthedestructionofHaider.NobodyspokeaboutLePenandtheNationalFrontinFranceduringthehotwinterof1995inFrance.ThemassmovementindefenceofpensionsinItalyalsomarginalisedthefarright.
简介：通过涂覆热分解法制备了Ti/RuO2-ZrO2-SnO2、Ti/RuO2电极材料,采用X射线衍射(XRD)、扫描电镜(SEM)和循环伏安(CV)对电极材料进行表征,考察了电流密度、NaCl质量浓度、pH值及电极间距对废水COD降解率的影响。结果表明,Ti/RuO2-ZrO2-SnO2电极对COD具有更高的降解率,对其进行工艺优化。电极材料对废水降解的最佳工艺条件为电流密度40mA/cm^2,NaCl质量浓度4g/L,pH=5.0,电极间距10mm,COD的降解率达到90.5%。Ti/RuO2-ZrO2-SnO2电极中SnO2与RuO2生成固溶体,有利于增强涂层与基体之间的结合力,提高电极的稳定性;ZrO2起到细化晶粒的作用,致使电极表面粗糙度增加,增强了电极的电催化性能,且降解过程符合一级动力学模型。
简介：A60%Fe/Al2O3catalystwaspreparedbytheco-precipitationmethod.ItwasreducedbyH2toproducemetallicFe,whichwasthensulfidedbyCS2toFe0.96SandFe3S4orphosphidedbytriphenylphosphine(PPh3)inliquidphasestoFe2PandFeP.Itwasfoundthattheironsulfides(Fe0.96SandFe3S4)exhibitedthelowactivityforthehydrodesulfurization(HDS)reactions.TheHDSactivitywasalsolowontheFe(metal)/Al2O3andFe2P/Al2O3catalystssincetheywereconvertedintoFe0.96SandFe3S4duringtheHDSreactions.Incontrast,theFeP/Al2O3wasfoundtobestableandactivefortheHDSreactions.Inparticular,FeP/Al2O3possessedsignificantlysmallerFePparticlesthanFeP/C,leadingtothesignificanthigherHDSactivityofFeP/Al2O3thanFeP/C.
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