简介：ＤｅｖｅｌｏｐｍｅｎｔｏｆＢｅａｍＤｉａｇｎｏｓｔｉｃＳｙｓｔｅｍａｎｄＩｔｓＳｏｆｔｗａｒｅｉｎＣｅｎｔｒａｌＲｅｇｉｏｎｏｆＳＳＣ￥ＦａｎｇＬｉｍｉｎｇ；ＺｈａｎｇＧｕｉｎｕａｎｄＣｈｕＺｈｅｎｓｈｅｎｇＴｈｅｂｅａｍｄｉａｇｎｏｓｔｉｃｓｙｓｔ...

简介：钴hexacyanoferrate(CoHCF)nanoparticle(尺寸ca。60nm)化学上修改的电极(CME)被制作，在这nanosizedCoHCFCME的血红素(Hb)的电气化学的行为被学习。与一个赤裸的玻璃质的碳电极(GCE)和以一种传统的方式的一般CoHCFCMEelectrodeposited比较，现在的nanosizedCoHCFCME高效地与相对高的敏感，稳定性，和longlife为Hb执行了electrocatalytic减小。与液体层析(LC)结合了，nanosizedCoHCFCME在确定的流动注射被用作Hb的电气化学的察觉者分析电气化学的决心(FIA-ECD)系统。山峰水流是在从2.5楳?景映牯業?捡摩映潲?慣'R湯搠潩楸敤愠摮栠摹潲敧?獵湩?的范围的集中的线性功能?楳楬慣椠浭扯汩穩摥爠瑵敨楮浵挠瑡污獹?獡瀠敲畣獲牯栠獡戠敥?瑳摵敩?湩搠晩敦敲瑮爠慥瑣潩?潣摮瑩潩獮?桔?敲?瑬?敲敶污摥琠慨?桴?佔?琨牵?癯牥映敲畱湥祣?景?佃?愠档敩敶????栠?漠?浩潭楢楬敺?畲桴湥畩?慣慴祬瑳渠慥?桴?牣瑩捩污瀠敲獳牵?潰湩?景??眠瑩??瀠敲獳牵?景???慐?敲捡楴湯琠浥数慲畴敲漠吗？？？？

简介：这篇论文研究平板波导然后匹配的效率在之间的结束衍射远地并且它的Gaussian近似的地被分析导致分叉一半角度的一个新定义。最后，远地的罐头为什么被Gaussian功能接近，根据横梁繁殖因素的特征被介绍。

简介：Inthispaper,anoptimalcontrolproblemgovernedbysemilinearparabolicequationwhichinvolvesthecontrolvariableactingonforcingtermandcoefficientsappearinginthehigherorderderivativetermsisformulatedandanalyzed.Thestrongvariationmethod,dueoriginallytoMayneetaltosolvetheoptimalcontrolproblemofalumpedparametersystem,isextendedtosolveanoptimalcontrolproblemgovernedbysemilinearparabolicequation,anecessaryconditionisobtained,thestrongvariationalgorithmforthisoptimalcontrolproblemispresented,andthecorrespondingconvergenceresultofthealgorithmisverified.

简介：TheBacklundtransformation(BT)forafifthorderKdVequationispresentedinthebilinearform.Furthermore,anonlinearsuperpositionformularelatedtotheBTobtainedaboveisprovedrigorously.Bytheway,anonlinearsuperpositionformulaofamodifiedfifthorderKdVequationisalsogiven.

简介：

简介：Ytterbiummetalreactswithiodinetogenerateytterbiumdiiodidedirectly,whichcanreactwithdiselenidestoformytterbiumselenolates(RSeYbI2).Thesespeciesreactedsmoothlywithallylbromidetogiveallylselenidesinmoderatotogoodyieldsunderneutralconditions.

简介：PolymericGrignardReagent(PGR)basedonthechloromethylatedpoly(ST-co-DVB)resinhasbeenpreparedbymeansofanthracene-magnesiumcomplexinTHF(Anth-Mg-THF),andpolymermatrixwithlongpolymethylenespacerwassynthesizedviathecouplingreactionbetweenPGRandα,ω-dibromoalkanes.Basedonthestudiesoffactorsaffectingthecoupling,suchascatalyst,reactiontime,thelengthofspaceretc.,thispaperofferstheoptimalreactionconditionsandthreetypicalexperimentprocedures.ThemechanismfortheformationandcouplingreactionofPGRarealsodiscussed.

简介：Amodifiedpolynomialpreservinggradientrecoverytechniqueisproposed.Unlikethepolynomialpreservinggradientrecoverytechnique,thegradientrecoveredwiththemodifiedpolynomialpreservingrecovery(MPPR)isconstructedelement-wise,anditisdiscontinuousacrosstheinterioredges.OneadvantageoftheMPPRtechniqueisthattheimplementationiseasierwhenadaptivemeshesareinvolved.SuperconvergenceresultsofthegradientrecoveredwithMPPRareprovedforfiniteelementmethodsforellipticboundaryproblemsandeigenvalueproblemsunderadaptivemeshes.TheMPPRisappliedtoadaptivefiniteelementmethodstoconstructasymptoticexactaposteriorierrorestimates.Numericaltestsareprovidedtoexaminethetheoreticalresultsandtheeffectivenessoftheadaptivefiniteelementalgorithms.

简介：AnovelfuUerene-acrylamidecopolymerwassynthesizedviaradicalpolymerization.Itissolubleinpolarsolventssuchaswater,dimethylsulfoxideetc.TheproductwascharacterizedbyFTIR,UV-VisandGPC.TEManalysisshowsthattheaverageparticlediameterisabout46nm.Four-balltestsshowthattheadditionofacertainconcentrationofthefullerenecopolymertobasestock(2wt%triethanolamineand0.5wt%OPZaqueoussolution)caneffectivelyraisetheload-carryingcapacity(PBvalue)andtheantiwearability.SEManalysisshowsthattheadditionresultsinreducingdiameterofwearscaranddecreasingwear.

简介：Thispaperisconcernedwiththestatisticalmodelingofthedependencestructureofmultivariatefinancialdatausingthecopula,andtheapplicationofcopulafunctionsinVaRvaluation.Aftertheintroductionofthepurecopulamethodandthemaximumandminimummixturecopulamethod,authorspresentanewalgorithmbasedonthemoregeneralizedmixturecopulafunctionsandthedependencemeasure,andapplythemethodtotheportfolioofShanghaistockcompositeindexandShenzhenstockcomponentindex.Comparingwiththeresultsfromvariousmethods,onecanfindthatthemixturecopulamethodisbetterthanthepureGaussiancopulamethodandthemaximumandminimummixturecopulamethodondifierentVaRlevel.

简介：Theinteractionofbromothymolblue(BB)withhumanserumalbumin(HSA)wasstudiedbyelectrochemicaltechniquesandasensitivemethodforproteinsassaywasdeveloped.WhenBBinteractedwithHSA,thevoltammetricpeakcurrentvalueofBBdecreasedlinearlywiththeconcentrationofHSAinarangeof1.0―40.0mg/L,andthepeakpotentialshiftednegatively.Basedontheresults,asensitiveassaymethodforproteins,suchasHSA,bovineserumalbumin(BSA),andeggalbuminetc.wasestablished.ThismethodwasfurtherappliedtodeterminingtheHSAinhealthyhumanbloodsamples,andtheresultsarenotsignificantlydifferentfromthoseobtainedbytheclassicCoomassieBrilliantBlueG-250spectrophotometicmethod.Thedetectingconditionsofthismethodwereoptimizedandtheinteractionmechanismwasdiscussed.Theresultsshowthattheelectrochemicalparameters(formalpotentialE0,standardrateconstantoftheelectrodereactionks,parameterofkineticnα)ofBBhavenoobviouschangesbeforeandaftertheinteraction,whichindicatethatBBcaninteractwithHSA,forminganelectrochemicalnon-activecomplex.Theequilibriumconstant(βs)andthebindingratio(m)forthiscomplexwerecalculated.Themis4andβsis1.41×1019.Thismethodisfast,simple,highlysensitive,andhasgoodselectivity,whichcanbeusedinclinicalmeasurements.

简介：Inthispaper,anewmodifiedextendedtanh-functionmethodispresentedforconstructingsoliton-like,periodicformsolutionsofnonlinearevolutionequation(NEEs).Thismethodismorepowerfulthantheextendedtanhfunctionmethod[Phys.Lett.A277(2000)212]andthemoditiedextendedtanh-functionmethod[Phys.Lett.A285(2001)355].AbundantnewsolutionsoftwophysicallyimportantNEEsareobtainedbyusingthismethodandsymboliccomputationsystemMaple.

简介：在实际调查采样，nonresponse现象是不可避免的。怎么把归咎于错过数据是一个重要问题。在文学有几个归罪方法。在这份报纸，当PPSWR采样被使用时，为在一致反应下面的失踪的数据的比率的平均数的归罪方法被用于一个有限人口平均数的评价。把归咎于的评估者不管反应机制不管模型以及在比率模型下面在相应反应机制下面是有效的。近似不偏的大折刀变化评估者也被介绍。所有这些结果被扩大到不一致的反应的盒子。模拟研究显示出建议评估者的好表演。关键词归罪-条款nonresponse-大折刀变化评估者-不一致的反应-PPSWR采样先生(2000)题目分类62D05由中国的国家自然科学基础支持了(资助Nos.70625004，10721101和70933003)

简介：

简介：

简介：Arapidandeffectivemethod,solidphaseextractioncoupledwithhighperformanceliquidchromatography(SPE-HPLC),wasappliedtotheseparationandanalysisofginsenosides.WatersOASISHLBwasusedforconcentratingandpurifyingsamplesandAlltimaC_(18)(53mm×7mm,3μm)chromatographycolumnwasusedforseparatingginsenosideRg_1,Re,Rb_1,Rc,Rb_2andRd.Theseginsenosideswereanalyzedwithin20mininourgradientelutionprocessandtheequilibriumtimeofthechromatographycolumncostonly5min.Moreover,therewasnoobviousbaselinedriftinourexperiment.Thismethodwasusedtoanalyzethecontentsofginsenosidesindifferentginsengproductsforqualitycontrol.Fourginsengproductswerestudied,includingtwokindsofcapsules,onekindoftabletandonekindofinjection.Theresultsshowthatthemethoddevelopedinthispaperhadgoodaccuracy,linearityandprecision.Therefore,thismethodcouldbeappliedinqualitycontrolofginsengproducts.

简介：一张新奇相片催化反应堆被开发搬迁(从水的1,1二度(4-chlorophenyl)-2,2,2-trichloroethane)(DDT)。在反应堆，cenosphere被用来支持借助于大音阶的第五音胶化做的TiO2电影。因为cenospheres与TiO2,是涂的，他们的比重稍微从原版被增加0.6∼0.8到0.8∼0.9，以便他们能在水里被推迟。与bubbler的混合操作，在反应堆的水处于一个使流体化得好的状态。反应堆的底部是一张沙过滤器床，它能被用来阻止光催化剂被失去。反应堆的一个数学模型在二个主要有影响的因素被开发了：紫外(紫外)轻紧张和光催化剂集中。与如此的一个模型一起，反应堆能更相当被设计。

简介：Anovelbeadfromofploymerofhighsorptioncapacityforureawereobtainedbythereactionofglutaricdialdehydewithchitosandispersedinaceticacidsolution.Thesorptioncapacityreached-82.0mg/gsorbentat37℃andpH7.4Theconcentrationofureainthebuffersolutionwas1300mg/l.Thesorptionofureawasrelatedtothedegreeofcrosslinkingofthesorbent,concentrationofurea,ionicstrengthandtemperature.

简介：