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1.
矢值序列空间ss(E)的端点和一致λ—性质   总被引:8,自引:2,他引:6  
矢值序列空间ss(E)是Banach序列空间lp(E)的重要推广。文中,给出了ss(E)的端点的充要条件,了ss(E)的一致λ-性质。  相似文献   

2.
用Visual Basic开发实用工程设计及计算软件初探   总被引:1,自引:0,他引:1  
介绍了应用Visual Basic语言开发工程设计计算通用软件相对于其它计算机语言的优势;在对目前流行的Visual Basic语言与目前工程计算的主流语言FORTRAN语言的优缺点做了阐述及对比后得出一些有益的结论;并介绍了一些Visual Basic开放中的经验及技巧。  相似文献   

3.
AlthoughtheAlzheimer’sdisease(AD)wasdis coveredbyAloisAlzheimer ,aGermanneuropatholo gist,inearly 2 0century ,itdidnotgainmuchpublicattentionuntilthelasttwodecades .Asthelifespanofhumanbeingsprolongs ,thenumberofpersonswithADhasalsoincreased .Besidescancerand…  相似文献   

4.
In1985,DerkneckmadethecloneofTGFβ1fromthegenebankofhuman'splacentaandcDNAoffibromasarcomacellline.PreviousstudieshaveshowedthatTGFβ1existsinmultiplenormalsomaticcells,hematopoieticcellsandembryoniccellsofhumanbeingorothermammals.Cellsandtumortissuewh…  相似文献   

5.
Uveoscleraldrainageofaqueoushu-mormeansthataqueoushumorpasses,fromanteriorchamber,throughtheinter-stitialspaceoftheciliarymus...  相似文献   

6.
Tuberculosisofthepancreasisarareclinicalentity.Involvementofthegas-trointestinalsystemocursinabout12per-centofpatientswithmil...  相似文献   

7.
Wanlass电动机的电磁分析与节能研究   总被引:1,自引:1,他引:0  
运用电机基本原理推导出Wanlass电动机的基本方程式和等效电路。对Wanlass电动机的节能效果进行了分析,从电磁分析角度看不能得了Wanlass电动机有节能效果的结论。  相似文献   

8.
为明确参与γ 射线诱导HL 60 细胞凋亡的caspase 家族成员,根据已知caspase家族成员保守肽序列设计简并引物,经RT PCR从凋亡HL 60 细胞m RNA扩增出一条带,通过基因克隆及序列测定进行鉴定。结果克隆出caspase 3 cDNA的一段序列。说明caspase 3 参与了γ 射线诱导的HL 60 细胞凋亡,可能是该凋亡途径的枢纽元件  相似文献   

9.
Hepatocellularcarcinoma(HCC)isoneofthemostcommonmalignanttumorsinChina ,andgreatattentionhasbeenpaidtoitscarcinogenesisresearch .Inrecentyears ,ithasbeenfoundthatheatshockprotein(HSP) playsagreatroleintheoccurrenceanddevelopmentofcarcinoma .Thepurposeofthi…  相似文献   

10.
IntroductionAsatisfactoryengineeringcontrolsystemshouldpossessmultipledesiredperformancessuchasgoodrobustnesstomodelingerror....  相似文献   

11.
Insulinresistanceandcompensatoryhyperinsulinemiawerefrequentlyfoundincaseofessentialhypertensionsuggestingthatinsulinisinvolvedinthepathogenesisofhypertension〔1〕.Sodiumsensitivitywasoneoftheintermediatephenotypesofessentialhypertension.Evidencesuppor…  相似文献   

12.
A PRELIMINARY STUDY ON SURVIVIN AND BCL-2 EXPRESSION IN CERVICAL CARCINOMAS   总被引:1,自引:0,他引:1  
Dysregulationofapoptosisisthoughttocon tributetocellmalignanttransformationandtumorprogression[1] .ThisistypicallyexemplifiedbytheoverexpressionofantiapoptosisBcl 2proteininfollic ularlymphomaanditscriticalroleinmultidrugresis tanceanddiseaseprogression .I…  相似文献   

13.
ThetechniqueofmagneticstimulationMEPhasprogressedrapidlysinceitcameintobeingin1985.Nowitisconsideredtobeabletoconfirmthelesio...  相似文献   

14.
IntroductionOctahedralcomplexesofd9Cu(Ⅱ)andhigh-spind4Cr(Ⅱ)orMn(Ⅲ)areexpectedtobesusceptibletoJahn-TellerdistortionscausingthemtodeviatefromidenticalOhsymmetrybyeitheratrigonaldistortionoratetragonalelon-gationorcompression[1].Buttherearesomecopper(Ⅱ…  相似文献   

15.
IntroductionWhentheinitialresponseofadynamicsystemisinadirectionoppositetothefinaloutcome,itiscalledaninverseresponse.Thebehaviorofboil-erscalledshrinkandswellisatypicalexampleoftheinverseresponse[1,2].Anotherexampleistheindustrialdistillationcolumn[…  相似文献   

16.
在Thomassen定理^[1]的基础上,推广了Thomassen定理的结果并讨论了收缩边,加边和去边之后图的点连通度的不变性及该边应具有的性质。  相似文献   

17.
IntroductionInordertomitigateNBIinspreadspectrumcommunicationsystem,itisoftennecessarytosupplementtheinnateprocessinggainbyusingadditionalsignalprocessingtechniquessuchastransformdomaininterferenceexcision(TDIE).TDIEhastwokeyparts.Thefirstistochoosea…  相似文献   

18.
Itiswellknownbyneurosurgistsandorthopediststhatbulbar-cervicaldorsalcompressionlesionscanberesectedviaposteriorapproaches,butitisdifficulttoresecttheventralcompressionlesions.Withtheimprovementofimage,microsurgicaltechniqueandinstruments,theresection…  相似文献   

19.
Thecancerofgallbladderisacommonmalignanttumorofthebiliarytract ,whichishardtodiagnoseandhasapoorprognosis .Itisalwaysaccompaniedbycholecystolithiasis .The pathologicalresearchforcholecystolithiasis ,adiseasecommonlyandfrequentlywerefoundinclinics ,showedt…  相似文献   

20.
RepeatedrestraintstressoracombinationofdailystressorsinratsinducedatrophyofhippocampusCA3pyramidalneruons〔1〕,whereasithadbeenreportedthattheelevatedcirculationadrenalsteroidssecretedduringstressmaybeinvolvedintriggeringthemorphologicalalterationssuch…  相似文献   

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