简介:Twooxo-vanadium(IV)complexes,[VO(C2O4)(2,2′-bipy)(H2O)]·C2H5OH(1)andVO(C2O4)(phen)(H2O)(2),where2,2′-bipy=2,2′-bipyridyl,phen=1,10-phenanthroline,weresynthesizedaspotentialfunctionalmodelsofvanadiumhaloperoxidases(VHPOs)inmixedsolventofethanolandwateratroomtemperature.Thecomplexeswerecharacterizedbyelementalanalysis,infrared(IR),UV-VisandX-raycrystallography.Structuralanalysesshowedthatvanadiumatomwascoordinatedbyaterminaloxygen,oneoxygenatomfromcoordinatedwater,twooxygenatomsfromthecarboxylategroupofoxalicacid,andtwonitrogenatoms(N1andN2)from2,2′-bipy/phen.Centralvanadiumatomsincomplexes1and2werebothinadistorted-octahedralenvironment,andsomeintermolecularhydrogenbondinglinkageswerealsoobservedineachcomplex.BrominationreactionactivityofthetwocomplexeswasevaluatedwithphenolredasorganicsubstrateinthepresenceofH2O2,Br-andphosphatebuffer,indicatingthattheycanbeconsideredasapotentialfunctionalmodelofVHPO.Inaddition,thermalanalysiswasalsoperformedanddiscussedindetail.
简介:让x:Mn是有非零主管弯曲的脐的免费hypersurface。然后,x与Laguerre公制的g被联系,Laguerre张肌\mathbbL\mathbb{L},Laguerre形式C,和一个Laguerre秒基础形成\mathbbB\mathbb{B}它是在Laguerre下面的x的invariants转变组。如果它的Laguerre形式消失,hypersurfacex被称为Laguerreisoparametric并且\mathbbB\mathbb的特征值{B}是不变的。在这份报纸,我们在4分类所有Laguerreisoparametrichypersurfaces。
简介:两个都与高chemoselectivity介绍芳香、脂肪族的主要的氨基的组的一个一步舞过程被开发。三位字节州的丙酮从聚合电影底层的C-H契约和是积木和氨基的组搬运人的酚的O-H契约提炼氢原子。作为结果,二种自由激进分子,聚合物底层的限制的以碳为中心的链激进分子和活动以氧为中心的含苯氧基的激进分子,被产生。然后,公司契约被在这些二种自由激进分子之间的联合反应形成。p-Tyramine和p-aminophenol被用作氨基的搬运人。氨基的组的成功的介绍被水合同角度(CA)的大小表明到LDPE,BOPP和宠物电影底层上,紫外系列(紫外),X光检查光电子光谱学(XPS)并且荧光灯显微镜学。处理因素p-tyramine和p-aminophenol的集中,和丙酮/水的比率例如紫外光的紧张和照耀时间,被调查。优化进程参数如下:紫外轻紧张9500W/cm2;为BOPP和LDPE的照耀时间18min,为宠物的22min;丙酮/水=的比率1;并且p-tyramine和p-aminophenol的集中15%为BOPP和LDPE,1%为宠物。基于紫外吸收度,聚合底层上的氨基的组被估计在6.3浥汵楳湯瀠汯浹牥穩瑡潩獮眠瑩?慣楴湯捩?湡潩楮?档牡敧?湩的范围吗?
简介:TheauthorsmainlyconcernthesetUfofc∈Csuchthatthepowerdeformationzf(z)/zcisunivalentintheunitdisk|z|<1foragivenanalyticunivalentfunctionf(z)=z+a2z2+···intheunitdisk.ItisshownthatUfisacompact,polynomiallyconvexsubsetofthecomplexplaneCunlessfistheidentityfunction.Inparticular,theinteriorofUfissimplyconnected.Thisfactenablesustoapplyvariousversionsoftheλ-lemmafortheholomorphicfamilyzf(z)/zcofinjectionsparametrizedovertheinteriorofUf.ThenecessaryorsufficientconditionsforUftocontain0or1asaninteriorpointarealsogiven.
简介:AnaturalcompactificationofthevirtualconfigurationspaceofNpointsontheRiemannsphereisconstructedbyusingcross-ratios.WeshowthatthiscompactificationishomeomorphictotheBers’compactificationofthevirtualmodulispaceofapuncturedRiemannsphereoftypeN.Inparticular,thesystemofglobalandexplicitcoordinatesofthisstandardcompactificationisgivenbycross-ratios.
简介:At-hyperwheel(t≥3)oflengthl(orW(t)lforbrevity)isat-uniformhypergraph(V,E),whereE={e1,e2,...,el}andv1,v2,...,vlaredistinctverticesofV=∪eii=1lsuchthatfori=1,...,l,vi,vi+1∈eiandei∩ej=P,j∈/{i1,i,i+1},wheretheoperationonthesubscriptsismodulolandPisavertexofVwhichisdifferentfromvi,1≤i≤l.Inthispaper,theminimumcoveringproblemofMCλ(3,W(3)4,v)isinvestigated.DirectandrecursiveconstructionsonMCλ(3,W(3)4,v)arepresented.Thecoveringnumbercλ(3,W(3)4,v)isfinallydeterminedforanypositiveintegersv≥5andλ.
简介:(N-isopropylacrylamide)(PNIPAM)Poly,microgels广泛地在药交货被使用由于他们对温度的快反应。以便得到更好的biocompatibility,PNIPAMmicrogels与biocompatible材料的层典型地是涂的,与核心壳导致合成microgels结构。例如,在最近准备的合成microgel,PNIPAM胶化的microsphere被phospholipid膜围住,并且合成microgel响应温度变化展出实质的音量转变。这里,我们开发一个理论模型描述这合成microgel的热应答的行为。特别地,我们把phospholipid膜当作象橡皮状的弹性体一样表现的有弹性的层并且为nematic胶化采用免费精力的功能的形式(它指其行为强烈地被学习了的热敏感的胶化的花药种类)作为那为PNIPAM胶化。我们证明合成microgel的热应答的行为能被膜显著地影响。由在接口上调查应力的状态,我们进一步预言当涂层膜生硬、薄时,皱纹被期望在卷转变以后发生在合成microgel的外部表面上。
简介:Three-dimensional(3D)flowerlikehierarchicalZn2GeO4andMn2+-dopedZn2GeO4microstructureshavebeenpreparedbyafacilehydrothermalapproach.X-Raydiffraction(XRD),fieldemissionscanningelectronmicro-scopy(FESEM),transmissionelectronmicroscopy(TEM)andphotoluminescence(PL)spectrometrywereemployedtocharacterizethesamples.SuchflowerlikehierarchicalZn2GeO4microstructureswithanaveragediameterof3―4μmwerefoundtobeconstructedbyabundantsinglecrystallinenanorodsofabout90nmindiameter.TheluminescentpropertiesofZn2GeO4:xMnphosphorswithdifferentcontentsofMn2+asanactivatorwereinvestigated.TheMn2+-dopedsamplesshowedgreenluminescencecorrespondingtothed-dtransitionofMn2+undertheirradiationofUVlight.Theredshift(from531nmto538nm)inλemwithincreasingMn2+contentwasobservedintheluminescentspectra,whichshouldbeattributedtoaweakcrystalfieldbecauseofthesubstitutionofZn2+byMn2+atadistortedtetrahedrallatticesite.