学科分类
/ 25
500 个结果
  • 简介:Severalaspectsoftheapplicationofsilverelectrodetotheelectrochemicalstudiesofhemoglobinhavebeendiscussedinthispaper.Thesilverelectrodecouldnotonlybeuseddirectlyastheelectrodefortheelectrochemicalstudiesofhemoglobin,butalsoreactwithphenothiazineandbenzimidazoletogivestableandusefulmediator-coatedelectrodes.Inaddition,thesilverelectrodecouldhelpsodiumdodecylsulfatetogivefullplaytoitspromotingeffectontheprotein.

  • 标签: SILVER ELECTRODE BIOELECTROCHEMISTRY HEMOGLOBIN
  • 简介:Thispaperproposesanewmethodbasedonprincipalcomponentanalysistofindthedirectionofanobjectinanypose.Experimentsshowthatthismethodisfast,canbeappliedtoobjectswithanypixeldistributionandkeeptheoriginalpropertiesofobjectsinvariant.ItisanewapplicationofPCAinimageanalysis.

  • 标签: principal COMPONENT analysis(PCA) principal component(PC) OBSERVED
  • 简介:Biomarkerisanimportanttoolinthestudyofmarineorganicgeochemistry.Itsdevelopmentandapplicationmakesitpossibletoelucidatetheprocessandmechanismoftheorganicmatterintheocean.Hydrocarbonsarethemostusefulmolecularmarkers.Theyareusedastracersinmanyaspects,suchassourceindication;thedegradationoforganicmatter;diagensisprocess;environmentalpollutionandpaleooceanicstudy,etc.Theyarestudiedintheestuaries,coastalareaanddeepseatogivetheknowledgeofmarineorganicgeochemistry.Thepaperdealswiththecharacteristics,developmentandapplicationofbiomarkersaswellastheiradvantagesanddisadvantages.

  • 标签: biomarker. hydrocarbon MARINE ORGANIC GEOCHEMISTRY
  • 简介:Inordertorefinetheproductsofwheatgermagglutinin(WGA),severalionexchangers,suchasD261,732,DEAE-cellulose-32andCM-cellulose-32,havebeenusedtoremovedproteinsandpigmentswithdifferentcolors,suchasbrown,red,yellow,greenandblack,intheextractsofwheatgerm.TheWGAobtainedfromthisprocedurehashigherhemagglutinationactivitythanthatavailablefromsigmaCo.TheminimumhemagglutinationdoseofthepurifiedWGAforanequalvolumeofa2%typeAredbloodcellsis4μg/ml.WGAisamixtureofisolectinswithdifferentisoelectricpoints,5.9,6.2and6.8.TheirmolecularweightidentifiedbySDS-polyacrylamidegelelectrophoresisare15,000dalton,18,000daltonand35,000dalton,respectively.

  • 标签: 离子交换剂 麦芽 凝集素精制
  • 简介:Thespleen-stomachtheoryisaveryvaluablecompositionoftheTCM.ItisoriginatedfromNeijing(《内经》),initiatedinJin-Yuanperiodsandtheidea“spleenandstomachisthepostnatalbaseoflife”inPiweilun(《脾胃论》)writtenbyLIDong-yuanestablisheditstheoreticalbasis.Directedbythistheory,theauthorcuredseveralcases,anditisnowreportedbelow.

  • 标签: 临床作用 中医 敷贴剂 脾胃疾病 《脾胃论》
  • 简介:Oftenthelifecycledataoccurascountofthevitaleventsandarerecordedasintegers.Thepurposeofthisarticleistomodelthefertilitybehaviorbasedonreligious,educational,economic,andoccupationalcharacteristics.TheresponsesofclassifiedgroupsaccordingtothesedeterminantsareexaminedforsignificantinfluenceonfertilityusingPoissonregressionmodel(PRM)basedontheNationalFamilyHealthSurvey-3dataset.TheobservedandpredictedprobabilitiesunderPRMindicatemodalvalueoftwochildrenforthePoissondistributionmodeleddata.Presenceofdominanceoftwochildinthedatamotivatestheauthorstoadoptmultinomialregressionmodel(MRM)inordertolinkfertilitywithvarioussocioeconomicindicatorsresponsibleforfertilityvariation.Choiceoftheexplanatoryfactorsislimitedtotheavailabilityofdata.Trendsandpatternsofpreferenceforbirthcountssuggestthatreligion,caste,wealth,femaleeducation,andoccupationarethedominantfactorsshapingtheobservedbirthprocess.Empiricalanalysissuggeststhatboththemodelsusedinthestudyperformsimilarlyonthesampledata.However,fittingofMRMbytakingbirthcountoftwoascomparisoncategoryshowsimprovedAkaikeinformationcriterionandconsistentAkaikeinformationcriterionvalues.CurrentworkcontributestotheexistingliteratureasitattemptstoprovidemoreinsightintothedeterminantsofIndianfertilityusingPoissonandMRM.

  • 标签: COUNT data FERTILITY POISSON model MULTINOMIAL
  • 简介:与在中国的经济的快速的开发,很快变化的地震网络过时的人或物,因为仪器,技术系统和网络密度的能力发达国家正在接近那些,观察数据过时的人或物的大数量积累。怎么把这些资源用于经济建设和公共安全成为了值得学习的一个重要问题。以便改进地震预言和地震紧急情况反应,它在这篇论文被建议那个提取珍贵先锋信息,改善地震rapid报导能力和报导的延长快速的紧张工作是关键问题。集成网络资源,造统一了地震监视网络是的标准和多功能建立一个公共安全服务平台和地震观察资源愿望的前提显著地作出贡献到工程,海洋,气象学,和环境保护的领域。因此,地震网络的开发的未来方向正在探索监视资源,提高独立革新,构造一个技术平台并且扩大服务领域。

  • 标签: 地震监测 公共安全 资源共享 监测网络
  • 简介:二个主要方法,不活跃的元素方法和安静元素方法,模仿这个过程多层并且焊接的multipass被考察,并且两个方法的缺点也被讨论。把分析基于这些,一个方法叫了节点动态松驰方法被放进提交模仿多层并且这个方法的焊接过程的multipass,和原则和申请详细被讨论。模仿的结果证明用节点,动态松驰方法能减少网孔失真,改进计算效率,并且获得好模拟结果。这个方法能也在有限元素分析在模拟增加或搬迁材料的地里被使用。

  • 标签: 应用程序 动力松弛法 节点 原理 模拟过程 焊接过程
  • 简介:Animportantresearchareainoceanographicsurveyingandmappingistoobtainsubmarinetopographybyremotesensingtechnique,especiallybySARimagery.Inthisarticle,problemsrelatedtoSARimageryareanalyzedtoprovidereferencesforthefurtherresearch.

  • 标签: 地形测量 海洋测量 安全分析报告 图象处理
  • 简介:Carbonnanotubesusedforconstructingbiosensorwasdescribedforthefirsttime.Single-wallcarbonnanotubes(SWNTs)functionalizedwithcarboxylicacidgroupswereusedtoimmobilizeglucoseoxidaseformingaglucosebiosensor.Thebiosensorresponsecanbedeterminedbyamperometricmethodatalowappliedpotential(0.40V).

  • 标签: 生物传感器 固定化酶 纳米管 葡糖氧化酶
  • 简介:Internationallyearthquakeinsurance,likeallotherinsurance(fire,auto),adoptedactuarialapproachinthepast,whichis,basedonhistoricallossexperiencetodetermineinsurancerate.Duetothefactthatearthquakeisarareeventwithsevereconsequence,irrationaldeterminationofpremiumrateandlackofunderstandingscaleofpotentiallossledtomanyinsurancecompaniesinsolventafterNorthridgeearthquakein1994.Alongwithrecentadvancesinearthscience,computerscienceandengineering,computerizedlossestimationmethodologiesbasedonfirstprincipleshavebeendevelopedtothepointthatlossesfromdestructiveearthquakescanbequantifiedwithreasonableaccuracyusingscientificmodelingtechniques.ThispaperintendstointroducehowengineeringmodelscanassisttoquantifyearthquakeriskandhowinsuranceindustrycanusethisinformationtomanagetheirriskintheUnitedStatesandabroad.

  • 标签: RISK INSURANCE EARTHQUAKE ENGINEERING MODEL
  • 简介:Thearticleintroducesradontransformofimageaswellasamethodtocalculategeometricmomentsunderradontransform.Bymakinguseoftheanti-interferencecharacterofRadontransform,thispaperpresentsamethodofextractingimage'smomentfeature,whichcangetamomentfeaturematrixofimageunderRadontransform,aswellasamethodtorecognizeimagebyusingtheSVofthismatrix.

  • 标签: RADON TRANSFORM SINGULAR value(SV) MOMENT FEATURE
  • 简介:Monitoringandstudyofdynamiccharacteristicsofgroundwateraresignificantmethodsofearthquakemonitoringandforecasting.Forresearchongroundwaterdynamics,groundwaterdatingcanqualitativelyandquantitativelyprovidescientificanalysisonthecharacteristicsofgroundwaterrechargeandrunoffaswellasrenewalcapacity.Thisarticleillustratesthemethodsusedgloballyandsummarizesthemainadvancesandachievementsingroundwaterdating.Italsofocusesontherelationshipsbetweengroundwaterrenewalcapacityandseismicmonitoring,groundwatermovementandseismicactivity,shallowgroundwaterrechargeandabnormalinterferenceelimination.Thestudiesshowthatgroundwaterdatingplaysanimportantroleinwater-rockinteraction,andgeologicaltectonicandseismicactivityevaluation.Therefore,groundwaterdatingcanbewidelyusedtomonitorandanalyzetheprecursorinformationinseismicundergroundfluidobservationsinthenearfuture.

  • 标签: 地震监测预报 地下水动态 测年 地下水补给 应用 水岩相互作用
  • 简介:Thedefinitionsandpurposesofenergysystemsandprocesssystemsarecomparedinthispaperbyconsideringtheroleofenergyinsystemswithemphasisonthedifferencesinthemethodsusedtooptimizetheexergoeconomicbenefitsofbothtypesofsystems.TheprocesssystemexergoeconomicrelationshipprimarilyincludetheestablishmentoftheThree-linkmodelofprocesssystems,thecompositionofobjectivefunctions,andthecorrespondingboundaryconstraintconditionsforoptimization.TheThree-Link-Method(TLM)whichisbasedonexergoeconomics,canbeusedtoeffectivelyoptimizeprocesssystems.TheTLMusedtooptimizeprocesssystemsisoutlinedinthispaper,Someaspectswhichneedfurtherdevelopmentarealsoidentified.

  • 标签: 热能经济 过程系统 优化分析
  • 简介:Organicbiocidesastimberpreservativeshavearousedmoreandmoreattention,becausemetalsaltsespeciallyarsenic,chromeandsoon,havebeensuspectedtobepoisonoustothesoilandaquaticanimals,aswellasthedisposalofpreservedtimberwastes.Therefore,anumberofeffectiveorganicbiocideshavebeenselectedtopreventwoodorbamboofromdecay,mildew,stainandsoon.Mostoftheseproductshaveenteredintothemarket.Withpeople’sincreasingawarenessoftheenvironmentalprotection,organicbiocideswilleventuallyplayimportantrolesintimberpreservationinthefuture.Thispapersummarizedthestudiesonapplicationoforganicbiocidesaswoodorbamboopreservatives,includingresistantmechanisms,commonlyappliedtypesandeffectsagainstwoodorbamboofungi,approachestodetectingtheamountoforganicbiocidesintimberandtheirinfluencesontheenvironment.Basedonthediscussionabove,theauthorspredictedthedevelopingprospectoforganicbiocidesintimberpreservation.

  • 标签: FOREST engineering ORGANIC BIOCIDE timber PRESERVATION
  • 简介:ThefirstcommercialapplicationofhomemadeRAX-2000adsorbentforaromaticswastestedsuccessfullyonthearomaticsunitofQiluCompany,SINOPECandqualifiedparaxyleneproducthadbeenproduced.158tonsofhomemadeRAX2000adsorbenthadbeenusedonthearomaticsunitofQiluCompany.Thecostdecreasedby10,000,000RMBascomparedwithpurchasingimportedadsorbent.AfterRAX-2000adsorbentwasappliedinthisaromaticsunit,

  • 标签: 吸附剂 芳香族化合物 生产技术 生产装置