简介：近年来的一系列研究证实,餐后高血糖在糖尿病的诊断、治疗和预后中有着重要意义[1、2].目前大多数糖尿病患者和部分基层医生往往对空腹血糖比较重视,习惯在诊断糖尿病或治疗后复查时只查空腹血糖,对餐后高血糖的意义则了解不多,而忽略了餐后血糖的检测.
简介：ＳＹＮＴＨＥＳＩＳＯＦ３－ＡＲＹＬ－１（２Ｈ，４Ｈ）ＡＣＲＩＤＯＮＥＳＡＮＤＴＨＥＩＲＤＥＲＩＶＡＴＩＶＥＳ￥ＲｏｎｇＹＩＮ；ＧｕａｎｇＦａｎＨＡＮ；ＹｕＴｉａｎＬＩ（ＤｅｐａｒｔｍｅｎｔｏｆＭｅｄｉｃａｌＬａｂｏｒａｔｏｒｙ，ＪｉｌｉｎＭｅｄｉｅａ...
简介：Theorientationalorderoftwoliquidcrystals,namely,6-［4-(4-nitrophenylazo)phenyloxy］hexyldiethanolamines(C6)and10-1-bromo［4-(nitrophenylazo)phenyloxy］alkane(B10)wasstudiedbymeansof2HNMRspectroscopywithhexamethylbenzene-d18astheprobemolecule.TheresultsshowthatthedirectorsinthesmecticAphaseofC6andthenematicphaseofB10couldbealigned,whichwasparalleltothemagneticfield.TheorientationalorderparameterofthesolutemoleculesinC6wasabout0.2,whileitisonly0.1inB10,whichisexpectedbecausethemoreorderedsmecticphasetendstoalignsolutemoleculestoahighlevel.ComparedtotheorientationalorderparameterofthesoluteintheSmCphaseof4［3,4,5-tris(4-dodecyloxybenzyloxy)-benzoyloxy］-4-(4′-dodecyloxybenzoyloxy)biphenyl(Ⅰ)(P2=0.14),itislargerinSmAphaseofC6.TherelativelyhigherorientationalorderparameterofthesoluteinC6isattributedtotheformationofintermolecularH-bondsintheSmAphaseofC6.
简介：Thesolidaddofthefirstprotonatedzincoborophosphate,(H3O)Zn(H2O)2BP2O8·H2O(1),wassoventothermallysyn-thesizedbythereactionofZn(NO3)2·6H2OandH3BO3withH3PO4inamixedsolvent,andstructurallycharacterizedbysingle-ystalX-raydiffractionanalysis.ItcrystallizesinthehexagonalP6122,a=0.9604(4)nm,c=1.5297(6)nm,V=1.2218(8)nm^3,Dc=2.921g/cm^3,Z=6,F(000)=1080,μ=3.495mm^-1.Thestmchwefeaturesthatthetetrahedra-te-trahedrahdlcesinterconnectedbyoctahedraandstronghydro-gembondinteractionsformathree-dimensionalframework.Theprotonatedwatermoleculesarelocatedatuniquepositions.othercharacterizationsbyIRandthermalanalysisarealsode-scribed.
简介：本文报道了Ｃ６Ｈ１２Ｏ６（ＮＨ４）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ（Ｃ２Ｈ５ＯＨ／Ｈ２Ｏ＝０．９０）体系在３５℃时体系溶解度和饱和溶液的折光指数，并绘出了体系相应的溶度图和饱和溶液的折光指数曲线图。结果表明：所研究的体系为四元体系Ｃ６Ｈ１２Ｏ６（ＮＨ４）２ＳＯ４Ｃ２Ｈ５ＯＨＨ２Ｏ中的一部分。当溶液中肌醇饱和时，溶度曲线落在约５０％的等醇水比面上。当（ＮＨ４）２ＳＯ４在溶液中达到饱和时，出现共饱点。其组成为（ＮＨ４）２ＳＯ４：２１０％，Ｃ６Ｈ１２Ｏ６：２．０８％，Ｃ２Ｈ５ＯＨ：４４７５％。同时出现分层，在富醇相随着乙醇浓度的增加，出现肌醇与硫酸铵共饱线。在富水相硫酸铵饱和溶度曲线落在约５％乙醇的等醇水比面上，折光指数曲线由三支组成，其中两条分别与Ｃ６Ｈ１２Ｏ６·Ｈ２Ｏ和（ＮＨ４）２ＳＯ４相对应，另外一条线与（ＮＨ４）２ＳＯ４和Ｃ６Ｈ１２Ｏ６·Ｈ２Ｏ的共饱线相对应
简介：Thecopper(Ⅱ）complex[Cu3(nta)2(azpy)2(H2O2)]·6H2O(nta=nitrilotriacetate,azpy=4,4′-azobispyridine)hasbeensynthesizedandcharacterized.TheX-rayanalysisrevealsthattherearetwokindsofcopper(Ⅱ）coordinationenvironments.Cu(1)hasadistortedsquareplanesymmetryandCu(2)hasadistortedoctahedralsymmetry.Cu(1)islinkedtoCu(2)throughntaandboundtoCu(1C)byazpy,andCu(2)islinkedtoCu(2A)throughazpy,whichextendstotwo-dimensionalnetworkwithlargerhombus1.2nm×1.7nm.
简介：Newmodelcompound1H,1′H-Bis（benz-Δ^4-imidazoline)2,2′-spiro-titaniumdichloridewaspreparedandthestructureofthecompoundwasdeterminedby1R,MSandelementaryanalysis.
简介：ThemixedH2/H∞guaranteedcostcontrolproblemviastatefeedbackcontrollawsisconsideredinthispaperforlinearsystemswithnorm-boundedparameteruncertainty.Basedonthelinearmatrixinequality(LMI)approach,sufficientconditionsarederivedfortheexistenceofguaranteedcostcontrollerswhihcguaranteenotonlyaprespecifiedH∞disturbanceattenuationlevelononecontrolledoutputforalladmissibleparameteruncertainties,butalsotheworst-caseH2performanceindexontheothercontrolledoutputtobenomorethanaspecifiedbound.Furthermore,aconvexoptimizationproblemisformulatedtodesignanoptimalH2/H∞guaranteedcostcontroller.
简介：Thetitlecomplex,[La(baec)1/2(H2btec)1/2(H2O)]n(H4btec=1,2,4,5-benzenetetracarboxylicacid)(1)wassynthesizedbythehydrothermalreactionof1,2,4,5-benzenetetracarboxylicdianhydridewithLa(NO3)3·6H2OinH2O,andcrystallizesinthetriclinicsystem,spacegroupP-1withα=0.64403(3)nm,b=0.94500(4)nm,c=0.96380(5)nm,α=88.535(2)°,β=100.314(2)°,γ=76.6470(10)°,V=1.69968(10)nm^3,Z=2,andfinalR=0.0274,Rw=0.0735.In1,eachLa(Ⅲ）ioniscoordinatedbyeightoxygenatomsfromsixcarboxylategroupsandonecoordinatedwatermolecule.TwodifferentcoordinstionmodesofH4btecwerePresentinthestructure,oneofwhichcontainstwoprotonatedcarboxylategrougpstobalancethecharge.
客服QQ：30444492琼网文【2021】1550-113号
增值电信业务经营许可证：琼B2-20210322
出版物经营许可证：新出发龙华出字第(2021)009号
广播电视节目制作经营许可证：(琼)字第00779号
版权所有 ©2002-2024 期刊网(www.qikanchina.com) 琼ICP备2021005105号
![Crystal Structure and Bioactivity of Complex [Gd（C10<b style='color:red'>H</b>9N<b style='color:red'>2</b>O4）（C10<b style='color:red'>H</b>8N<b style='color:red'>2</b>O4）（<b style='color:red'>H</b><b style='color:red'>2</b>O）3]<b style='color:red'>2</b>·phen·4<b style='color:red'>H</b><b style='color:red'>2</b>O](/image/thesis9 "Crystal Structure and Bioactivity of Complex [Gd（C10<b style='color:red'>H</b>9N<b style='color:red'>2</b>O4）（C10<b style='color:red'>H</b>8N<b style='color:red'>2</b>O4）（<b style='color:red'>H</b><b style='color:red'>2</b>O）3]<b style='color:red'>2</b>·phen·4<b style='color:red'>H</b><b style='color:red'>2</b>O")
![Synthesis,Structure and Characterization of Two—dimensional Network Copper Complex [Cu3（nta）<b style='color:red'>2</b>（azpy）<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>O）<b style='color:red'>2</b>]·6<b style='color:red'>H</b><b style='color:red'>2</b>O](/image/thesis12 "Synthesis,Structure and Characterization of Two—dimensional Network Copper Complex [Cu3（nta）<b style='color:red'>2</b>（azpy）<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>O）<b style='color:red'>2</b>]·6<b style='color:red'>H</b><b style='color:red'>2</b>O")
![Hydrothermal Synthesis and Structure of a New 3D Lanthanide—Carboxylate Framework,[La（btec）1／<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>btec）1／<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>O）]n（<b style='color:red'>H</b>4btec=1,<b style='color:red'>2</b>,4,5—Benzeneteracarboxylic acid）](/image/thesis18 "Hydrothermal Synthesis and Structure of a New 3D Lanthanide—Carboxylate Framework,[La（btec）1／<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>btec）1／<b style='color:red'>2</b>（<b style='color:red'>H</b><b style='color:red'>2</b>O）]n（<b style='color:red'>H</b>4btec=1,<b style='color:red'>2</b>,4,5—Benzeneteracarboxylic acid）")
