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1.
LetXbeaseparated,locallyconvexspaceoverthecomplexfieldC,C∞theRiemannsphere,i.e.,theonepointcompactificationofC,L(X)thealgebraofallcontinuouslinearoperatorsofXintoitself.ThetopologyofboundedconvergencemakesL(X)alocallyconvexalgebra.Theresolventsetρ(…  相似文献   

2.
河北苔藓植物新记录(一)   总被引:4,自引:0,他引:4  
在研究河北省苔藓植物资源的过程中,首报导了河北产的13种苔藓植物新记录:扭叶牛毛藓(Ditrichumcrispatissimum),青毛藓(Dicranodontiumdemudatum),尖叶扭口藓(Barbulaconstricta),黑扭口藓(Barbulanigrescens),链齿藓(DesmatodonLatifolius),净口藓(Gymnostomumcalcareum),钩喙净口藓(G.Curvirostre),粗肋曲喙藓(Rhamphidiumcrassicostatum),钝叶扭毛藓(Streblotrichumobutsifolium),紫萼藓(Grimmiaaffinis),山地紫萼藓(Grimmiamontana),卵叶紫萼藓(Grimmiaovalis),卷叶凤尾藓(Fissidenscristatus)。其中,牛毛藓属(Ditrichum),青毛藓属(Dicranodontium),净口藓属(Gymnostomum),曲喙藓属(Rhamphidium),扭毛藓属(Streblotrichum)等5属为河北省新记录属。  相似文献   

3.
IntroductionSweetpotato(Ipomoeabatatas(L.)Lam.)isanimportantcrop.Ithasthreestrikingcharacters,i.e,outbred,incompatibilityandvegetativepropagation[1].Plantincompatibilityisakindofpropertywhichisaccumulatedoveralongperiodoftimeinthecourseofevolutionund…  相似文献   

4.
五味子化学成分研究(Ⅰ)   总被引:3,自引:0,他引:3  
从云南民间药用植物中间五味子(Schisandrapropinquavarintermedia)茎中,分离得到4个化合物,即环五味子烯醇(1)(Cycloschisandrenol1),Schisandronicacid(2),Schisandrolicacid(3),β-谷田醇(β-sitosterol)(4)其结构经由光谱分析确定。  相似文献   

5.
团花树皮的吲哚生物碱成分   总被引:1,自引:0,他引:1       下载免费PDF全文
从团花树皮中分离得到6个吲哚类生物碱成分,根据光谱数据和理化性质鉴定它们的结构为vallesiachotamine(I),isovallesiachotamine(Ⅱ),strictosamide(Ⅲ),cadambine(Ⅳ),desoxycordifoline(Ⅴ),5αcarboxystrictosidine(Ⅵ),这些化合物除Ⅳ外,其余均首次从该植物中分离得到。  相似文献   

6.
五味子化学成分研究(I)   总被引:3,自引:0,他引:3  
从云南民间药用植物中间五味子(Schisandra propinqua var intermedia)茎中,分离得到4个化合物,即环五味子烯醇(1)(Cyloschisandrenol 1),Schisandronic acid(2),Schisandrolic acid(3),β-谷甾醇(β-sitosterol)(4)。其结构经由光谱分析确定。  相似文献   

7.
IntroductionInordertomitigatetheproblemsofenergyshortage,environmentalpollutionandtheoverburdenedtransportationsystemsinChina,underthesupportofthestate,thenuclearheatingreactor(NHR)wasdevelopedbytheInstituteofNuclearEnergyTechnology(INET),TsinghuaUni…  相似文献   

8.
PhysicalQualityRelationshipsbetweenTcandElectronegativitiesforHighTcSuperconductorsWangRongyao(王荣耀),MaoWeihong(茅卫红),ZhangHuiy...  相似文献   

9.
TabtoxinToleranceinTransgenicTobaccoPlantExpressingaTabtoxinResistantGene*YeZhaohui(叶朝晖),YuLihua(余荔华),ZhaoNanming(赵南明),QuChan...  相似文献   

10.
Object as Agent     
Inobjectorienteddesign(OOD),theconceptofobjectgeneralyreferstotheobjectofaction,whichisitsnaiveEnglishmeaning(The‘object’in...  相似文献   

11.
TheStructuralFeatureofEssentiallyDisconnectedCoronoidSystemsChenRongsi(陈荣斯)(CollegeofFinanceandEconomics,FuzhouUniversity,Fuz...  相似文献   

12.
FractalCharacteristicsofTinIodideAggregatesDepositedataGas┐solidInterface*ZhangJizhong(张济忠)1,2,YangXiaodong(杨晓东)1,LiHengde(李恒...  相似文献   

13.
ReflectionScanningNear┐fieldOpticalMicroscopeWangGang(王刚),ZhaoJun(赵钧),ZhangPeilin(张培林)DepartmentofModernAppliedPhysics,Tsingh...  相似文献   

14.
MicrobialDiversityandResourcesLiuZhiheng(InstituteofMicrobioly,ChineseAcademyofSciences,P.R.C.)MichaelGoodfelow(Universityof...  相似文献   

15.
Pseudo┐colorimetricMethodforDetectionofPenetrationandSeamPositioninWeldingProcess*WuMinsheng(吴敏生),LuMinghui(陆铭慧),LiLuming(李路明...  相似文献   

16.
TheenergybarrierofvortexmotionUisveryimportantinvortexdynamics.Inthisletter,WereportsuchbarrierdistributionfunctionP(U)determinedbyacsusceptibility(acs)technique.TheeffectsoffrequencyandacamplitudeonacsweremeasuredforathinfilmTl2Ba2CaCu2O8inadcmagne…  相似文献   

17.
CircularDichroismAnalysisoftheEffectofMetalicIonsonStructureofColagenMolecules*ZhangXiufang(张秀芳),GongYandao(公衍道),DouJiangang(...  相似文献   

18.
NeutronRadiographyofSpacePyrotechnicsMoDawei(貊大卫);LiuYisi(刘以思);CaiQingsheng(蔡庆胜)(InstituteofNuclearEnergyTechnology,TsinghuaU...  相似文献   

19.
ExperimentalSet┐upofLaserUltrasonicTechniquesandApplications*ZhouXingeng(周辛庚),HeCunfu(何存富)DepartmentofEngineeringMechanics,Ts...  相似文献   

20.
MolecularBasisofTransferofInducedResistanceinPlants*XuWenlian(徐文联),DongHansong(董汉松)+,PanJun(潘军)+,JiangWuling(蒋五玲),LiuAixin(刘爱...  相似文献   

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