简介：ThecokedepositiononHZSM-5/SAPO-34compositecatalystshasbeenstudiedintheconversionofethanoltopropylene.TheHZSM-5/SAPO-34compositecatalystsweresynthesizedbyhydrothermalmethod（ZS-HS）andfullyblending（ZS-MM）.TheusedcatalystswerecharacterizedbyXRD,N2adsorption–desorption,TGA,TPO,elementalanalysis,FTIRandXPS.ThecokingkineticsonbothZS-HSandZS-MMhasbeeninvestigatedandtheircokingrateequationswereobtained.TheusedZS-MMcatalysthadhigheramountofcokeandlowernC:nHthantheusedZS-HS.90%ofthecokewasdepositedinthemicroporesofZS-HS,whilealmost45%ofthecokelocatedinthemicroporesofZS-MM.ThecokedepositedonZS-HScatalystwasmainlygraphite-likecarbonspecies,whereasdehydrogenatedcokespecieswasthemajoronZS-MM.ThecokingactivationenergyofZS-MMwaslowerthanthatofZS-HS,andthecokingrateonZS-MMwasfasterthanonZS-HS.Inaddition,theregenerationofZS-MMcatalystshowedthatithadagoodhydrothermalstability.Thedifferencesoncokingbehaviorsonthetwocatalystswereduetotheirdifferentacidicpropertiesandtextures.

简介：ThispaperconsidersthereliablecontroldesignforT-Sfuzzysystemswithprobabilisticactuatorsfaultsandrandomtime-varyingdelays.Thefaultsofeachactuatoroccursrandomlyanditsfailureratesaregovernedbyasetofunrelatedrandomvariablessatisfyingcertainprobabilisticdistribution.Intermsoftheprobabilisticfailuresofeachactuatorandtime-varyingrandomdelays,newfaultmodelisproposed.Basedonthenewfuzzymodel,reliablecontrollerisdesignedandsufficientconditionsfortheexponentiallymeansquarestability(EMSS)ofT-SfuzzysystemsarederivedbyusingLyapunovfunctionalmethodandlinearmatrixinequality(LMI)technique.Itshouldbenotedthattheobtainedcriteriadependonnotonlythesizeofthedelay,butalsotheprobabilitydistributionofit.Finally,anumericalexampleisgiventoshowtheeffectivenessoftheproposedmethod.

简介：Two-dimensionalatomic-layeredmaterialisarecentresearchfocus,andsinglelayerTa2O5usedasgatedielectricinfield-effecttransistorsisobtainedviaassembliesofTa2O5nanosheets.However,theelectricalperformanceisseriouslyaffectedbyelectronicdefectsexistinginTa2O5.Therefore,spectroscopicellipsometryisusedtocalculatethetransitionenergiesandcorrespondingprobabilitiesfortwodifferentchargedoxygenvacancies,whoseexistenceisrevealedbyx-rayphotoelectronspectroscopyanalysis.SpectroscopicellipsometryfittingalsocalculatesthethicknessofsinglelayerTa2O5,exhibitinggoodagreementwithatomicforcemicroscopymeasurement.NondestructiveandnoncontactspectroscopicellipsometryisappropriatefordetectingtheelectricaldefectslevelofsinglelayerTa2O5.

简介：Inthiswork,aseriesofMIL-101-SO3H（x）polymericmaterialswerepreparedandfurtherusedforthefirsttimeasefficientheterogeneouscatalystsfortheconversionoffructose-basedcarbohydratesinto5-ethoxymethylfurfural（EMF）inarenewablemixedsolventsystemconsistingofethanolandtetrahydrofuran（THF）.Theinfluenceof–SO3HcontentontheacidityaswellasonthecatalyticactivityoftheporouscoordinationpolymersinEMFproductionwasalsostudied.HighEMFyieldsof67.7%and54.2%couldbesuccessivelyobtainedfromfructoseandinulininthepresenceofMIL-101-SO3H（100）at130°Cfor15h.Thecatalystcouldbereusedforfivetimeswithoutsignificantlossofitsactivityandtherecoveryprocesswasfacileandsimple.Thisworkprovidesanewplatformbyapplicationofporouscoordinationpolymers（PCPs）fortheproductionofthepotentialliquidfuelmoleculeEMFfrombiomassinasustainablesolventsystem.

简介：

简介：TheZ-backlighterlaserfacilityprimarilyconsistsoftwohighenergy,high-powerlasersystems.Z-Beamletlaser(ZBL)(Ramboetal.,Appl.Opt.44,2421(2005))isamulti-kJ-class,nanosecondlaseroperatingat1054nmwhichisfrequencydoubledto527nminordertoprovidex-raybacklightingofhighenergydensityeventsontheZ-machine.Z-Petawatt(ZPW)(Schwarzetal.,J.Phys.:Conf.Ser.112,032020(2008))isapetawatt-classsystemoperatingat1054nmdeliveringupto500Jin500fsforbacklightingandvariousshort-pulselaserexperiments(seealsoFigure10forafacilityoverview).Withthedevelopmentofthemagnetizedlinerinertialfusion(MagLIF)conceptontheZ-machine,theprimarybacklightingmissionsofZBLandZPWhavebeenadjustedaccordingly.Asaresult,wehavefocusedourrecenteffortsonincreasingtheoutputenergyofZBLfrom2to4kJat527nmbymodifyingthefiberfrontendtonowincludeextrabandwidth(forstimulatedBrillouinscatteringsuppression).TheMagLIFconceptrequiresawell-defined/behavedbeamforinteractionwiththepressurizedfuel.HencewehavemadegreateffortstoimplementanadaptiveopticssystemonZBLandhaveexploredtheuseofphaseplates.WearealsoexploringconceptstouseZPWasabacklighterforZBLdrivenMagLIFexperiments.Alternatively,ZPWcouldbeusedasanadditionalfusionfuelpre-heaterorasatemporallyflexiblehighenergypre-pulse.AlloftheseconceptsrequiretheabilitytooperatetheZPWinananosecondlong-pulsemode,inwhichthebeamcanco-propagatewithZBL.Someoftheproposedmodificationsarecompleteandmostofthemarewellontheirway.

简介：首次采用体外抑制实验检测芦丁、异槲皮苷、紫云英苷、槲皮素4种黄酮化合物对5-脂氧合酶（5-LOX）抑制作用,4种化合物IC50值分别为44.18,94.17,172.49和468.45μmol/L.在超滤液质联用实验中测定4种化合物与5-LOX酶的结合率,其结果与体外抑制实验结果一致,表明芦丁对5-LOX有较强的抑制作用,其次为紫云英苷,而槲皮素和异槲皮苷对5-LOX几乎无作用.

简介：用溶剂热法合成了基于环糊精的金属有机骨架化合物（Na-CD-MOF）,采用X-射线单晶衍射、红外光谱和元素分析进行了结构表征.以5-氟尿嘧啶（5-FU）为模型药物,研究了Na-CD-MOF的细胞毒性和载药及体外释药的能力.研究结果表明,新合成的Na-CD-MOF对5-FU的负载量最大为1.18g/g,且具有明显的缓释作用.体外细胞毒性实验表明,Na-CD-MOF具有良好的生物相容性,有望成为一种绿色的药物载体.

简介：AseriesofnovelN-（3-furan-2-yl-1-phenyl-1H-pyrazol-5-yl）amidesderivativesweredesignedandsynthesized.Theirstructureswereconfirmedby1HNMR,13CNMRandHRMS.Alltitlecompoundswereevaluatedfortheirherbicidalandantifungalactivities.Preliminarybioassayresultsindicatedthatthetitlecompoundsshowedgoodtomoderateherbicidalactivityat1000mg/L.Compound6qpresentedthebestactivityagainstDigitariasanguinalis（L）Scop.,AmaranthusretroflexusL.andArabidopsisthalianawithaninhibitiondegreeoffive.Compound6dalsoshowedaninhibitiondegreeoffiveagainstD.sanguinalis.Inaddition,at50mg/L,mostcompoundsexhibitedgoodinvitroantifungalactivityagainstSclerotiniasclerotiorum,withcompound6cshowingover90%antifungalactivityagainstS.sclerotiorumandPelliculariasasakii.

简介：Themassesofneutron-defcientnuclidesplayacriticalroleinthecalculationofastrophysicalrapidproton-captureprocesses[1].Neutron-defcientnuclideswithmassnumber∧around80arethelastsetofnuclideswithunknownmassesonthepathwayofvp-process[2].Themassmeasurementofnuclideswouldbeveryuseful.In2016,massesofneutron-defcientnuclides79Y,81Zr,82Zr,83Nband84Nbnucleiwerepreciselymeasureddirectlybytheexperimentalstorage-ringCSReatLanzhou.

简介：以4-[（8-羟基-5-喹啉）偶氮]-苯磺酸与氯化钴为原料,采用溶剂热法通过原位反应合成{[Co（5-氨基-8-羟基喹啉）_2]·H_2O}_n,并通过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：标题配合物属于斜方晶系,Pbcn空间群,晶胞参数a=1.321（2）nm,b=0.811（2）nm,c=1.511（2）nm,α=β=γ=90.00°,V=1.619（3）nm~3,Z=4,R_1=0.0516,wR_2=0.1025.配合物中存在ππ堆积相互作用和氢键作用,将配合物连接形成三维超分子网络结构.

简介：Athree-dimensionalfew-layerreducedgrapheneoxide-wrappedmesoporousLi4Ti5O12（m-LTO@FLRGO）electrodeisproducedusingasimplesolutionfabricationprocess.WhentestedasananodeforLiionbatteries,them-LTO@FL-RGOcompositeexhibitsexcellentratecapabilityandsuperiorcyclelife.Thecapacityofm-LTO@FL-RGOreaches165.4mAhg-1after100cyclesbetween1and2.5Vatarateof1C.Evenatarateof30C,ahighdischargecapacityof115.1mAhg-1isstillobtained,whichisthreetimeshigherthanthepristinemesoporousLi4Ti5O12（m-LTO）.Thegraphenenanosheetsareincorporatedintothem-LTOmicrosphereshomogenously,whichprovideahighconductivenetworkforelectrontransportation.

简介：利用L-脯氨酸催化的5-氯水杨醛（1）与6-甲基-4-羟基吡喃酮（2）的缩合反应及硫酸铜催化下与1,3-二甲基-5-氨基吡唑（3）的串联反应,合成得到了10-氯-1,3-二甲基-5-（2-氧代丙基）色烯并[4,3-d]吡唑并[3,4-b]吡啶-6（3H）-酮（4）和10-氯-5-二乙氧基甲基-1,3-二甲基色烯并[4,3-d]吡唑并[3,4-b]吡啶-6（3H）-酮（5）.化合物5的结构通过单晶X射线衍射法确定：晶体属于三斜晶系,空间群P-1;相对分子质量Mr=803.68;晶胞参数a=1.03160（10）nm,b=1.42900（13）nm,c=1.44268（15）nm;V=1.9448（3）nm~3;Z=2;晶胞密度Dc=1.372g/cm~3;吸收系数μ=0.228mm-1;单胞中电子的数目F（000）=840.晶体结构用直接法解出,经全矩阵最小二乘法对原子参数进行修正,最终的偏离因子为R=0.0681,wR=0.2051.在晶体结构中色烯环与吡啶环及吡唑环近似于共平面.

简介：一、前言财政部于2006年发布了《企业会计准则第15号—建造合同》,自2007年起首先在上市公司执行,并鼓励其他企业提前执行。建造合同准则的发布给施工企业的会计核算带来了进步,同时也带来了挑战。它在合同收入和合同费用的确认、单据结算和预计合同亏损的处理等方面进行了较大改变,但也同时更加重视成本估算和控制以及成本核算基础工作。

简介：据2015年度备案统计数据，全市代理记账机构达170家，服务费收入1853万，从业人员554名，服务户数4316户。自《代理记账管理办法》修订发布以来，济南市进一步规范机构管理，提升服务水平，促进代理记账业健康发展。

简介：应急响应中常常出现供应节点与需求节点距离太远、关键道路损毁等情境,此时直升机和车辆逐渐被联合使用以运送关键应急物资。由于原生及次生衍生灾害的发生发展,可能导致已有应急中转点不能使用,或者由于救援工作的开展,产生新的应急中转点等,这就可能导致事先已经制定的联合运送方案不能按照原计划进行。针对直升机和车辆联合运送中出现的中转点变化干扰事件,从物资到达时间、联合运送路线和使用运力三方面进行扰动度量,进而建立一个中转点变化的应急医疗物资联合运送干扰恢复模型,并通过改进基于客户的编码方法和提出基于简化策略的种群初始化方法等,设计了模型求解的遗传算法。数值实验验证了模型与算法的有效性,并通过与重优化方法对比,检验了干扰管理方法在处理中转点变化干扰事件中的优势。

简介：基于绩效保障模式，设计了一个由备件仓库和维修车间组成的装备可修部件闭环保障系统，推导了备件库存水平状态的稳态概率分布，计算了可用度等几个保障绩效度量指标，建立了基于可用度约束的保障系统运作优化模型，并通过仿真分析探讨了保障系统运营管理策略问题。

简介：为加强管理会计人才培养，提高企业内部管理水平和经济效益，临沂市财政局与住房和城乡建设局于10月15日至16日联合举办了全市建筑企业管理会计培训班。

简介：所谓合同是指当事人或当事双方之间设立、变更、终止民事关系的协议。合同作为一种民事法律行为,是当事人双方根据某一事项进行协商后的必然产物。行政事业单位的经济合同管理主要是为了合理实现本单位职能目标、充分维护单位合法权益、有效降低合同风险的发生、不断提升行政事业单位公共服务效率、同时防止出现合同舞弊、预防腐败问题发生的一项综合性管理活动。