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1.
TheexpressionofheterologousproteinsinEscherichiacolihasbecomeastandardtech niqueinmolecularbiology .E .coliexpressionsystemshavetheadvantagesofproductioneco nomicsandlogistics .TheseadvantageshavemadeE .coliexpressionsystemapopularchoicefortheproductionof…  相似文献   

2.
0 IntroductionLarge scalesequencingandtheapplicationofexpressedsequencetag(EST)technologyhasledtotheidentificationofhundredsandthousandsofgenomicsequencesfromvariousmicrobestomulticellulareukaryotesandplants[1,2 ] .ExpressionanalysisofeachknowngeneorESTusi…  相似文献   

3.
白粉菌属(Erysiphe)的内蒙古新记录种与变种   总被引:2,自引:2,他引:2  
产于赤峰地区的白粉菌属(Erysiphe)内蒙古新记录种11个、变种2个,即:E.adenophorae、E.arabidis、E.biocelata、E.cruchetianavar.hyalina、E.galeop-sidis、E.glycinesvar.lespedezae、E.heraclei、E.hommae、E.hyoscyami、E.knautiae、E.rabdosiae、E.sedi、E.trifoli.  相似文献   

4.
IntroductionReferenceFreePartEncapsulationtechnique (RFPE)asanon traditionalfixturingtechniqueattractspeople sgreatattentionrecently .InRFPE ,theworkpieceisorientedbyspecificdieandthenimmersedinabathofmoltenfixturingalloywithlowermolt ingpointtoformastock…  相似文献   

5.
BecauseofwithoutEnglish-Spokensurroundings,ChinesestudentsfeelitisdifficultytolearnEnglishlanguage,especiallytheEnglishofspeci?..  相似文献   

6.
InstituteofNuclearEnergyTechnologyTsinghuaUniversityTheIinstituteofNuclearEnergyTechnology(INET)ofTsinghuaUniversitywasfounde...  相似文献   

7.
InnovationandEvolution:ReflectionsonaLifeinScience—FromtheEsakiTunnelDiodetoSemiconductorSuperlaticesandQuantumWelsLeoEsakiUn...  相似文献   

8.
青岛地区水云目Ectocarpales藻类已知有12种,分属于2科7属:1.发状定孢藻Acinetosporacrinita;2.蜕尖水云Ectocarpusacutus;3.皮层水云E.corticulatus;4.钝圆水云△E.obtuosus;5.水云E.confervoides;6双囊水去E.dicystus;7不规则费氏藻Feldmanniairregularis;8.印度费氏藻F.indica;9.卵形褐茸藻Giffordiaovata;10栖松扭线藻Streblonemacodicola;11.聚果藻Sorocarpusmicromorus;12莱氏多孔藻”polytretusreinboldii.(为本地区新记录,A为我国首次报道.)  相似文献   

9.
IntroductionThekeyofConcurentEngineering(CE)isasystematicapproachtotheintegrated,concurentdesignofproductandtherelatedprocese...  相似文献   

10.
IntroductionThe21stcenturyiscoming.Economiccompetitionisfierce.Everyareaofmanufacturingischalengedwithcontinualychanging,unpr...  相似文献   

11.
ShiftEquivalenceImpliesTopologicalEquivalenceforSomeAnosovEndomorphisms*ZhangMeirong(章梅荣)DepartmentofAppliedMathematics,Tsing...  相似文献   

12.
产学研合作与建立健全技术创新体系研究ResearchonCooperationofEnterprises,UniversitiesandScientificResearchInstitutionsandEstablishmentofPerfectTe...  相似文献   

13.
Introduction  Since 196 0 s ,withthedetailedstudyoftransformationalgen erativegrammar,Englishteachinghasgraduallyabandonedthemechanicpatterndrillsusedinaural oralmethodin 195 0 s,andfocusedondevelopingstudents communicativecompetence .MoreandmoreEnglishteacher…  相似文献   

14.
IntroductionConcurrentEngineering(CE)isregardedasthe90smanufacturingphilosophy[1,2].Itiswelknownthatcomputeraidedprocesplanni...  相似文献   

15.
IntroductionEmodinisoneoftheanthraquinonecompounds[1] ,whichexistsinmanymedicalplantssuchasradix polygonimultiflori,rhizomapolygoni,etc .Emodinisanimportantcompoundinmedicine .Ithasmanybiologicalactivitiessuchasanti infection ,decreasingbloodlipidscontent ,e…  相似文献   

16.
DamageofInterconnectsbyElectromigrationInducedSurfaceEvolution*ZhaoZhijun(赵智军),YangWei(杨卫)DepartmentofEngineeringMechanics,Ts...  相似文献   

17.
Takingapanoramicviewofthetwistywayaboutthedevel opmentofthenon governmentalenterprisesofscienceandtechnol ogy (NGEST)inourcountry ,wehavenoticedtheindomitablevi talityandirresistiblepoweroftheseenterprises.NGESTworkwell,because,asasystem ,theirfunctioncomes…  相似文献   

18.
总结经验提高效益开创低渗透油田开发新局面SumupExperience,RaiseEfficiencyandEconomicBenefitsandOpenupaNewProspectofDevelopingtheLowPermeabilityoil-...  相似文献   

19.
THE PHASE RELATION BETWEEN ACCUMULATIVE EFFECT OF SOLAR ECLIPSE AND EL NINO   总被引:3,自引:0,他引:3  
ByanalyzingallthedataofElNinoandthesolareclipsesfrom1948to1998,somecomplexrelationsbetweenthesolareclipsesandElNinoarefoundasfoll?..  相似文献   

20.
Erythropoietin(EPO)isoneofthemostimportantregulatoryfactorsduringthedevelopmentofmammalianerythrocyte,actingmainlyontheerythr...  相似文献   

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