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  • 简介:Cartimandua'srolehasbeenmuchdiscussedbymodernhistorians.1HerpositionasqueenoftheBrigantes,wifeofVenutiusandclientofRomehasbeendefinedbyscholarsinthepreviousfiftyyears.OneareanotthoroughlyexaminedisTacitus'portrayalofhercharacter,whichchangesdramaticallyfromthelengthypassageinAnnals12.32-40totheshortaccountofHistories3.45.Whileneithersectionflattersthemonarch,TacitusdestroyshercharacterintheHistories,equatingherwithfiguressuchasG...

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  • 简介:Thispaperhasorganizedandsummarizedtheeconomicanalysisonclimatechangefromfiveangles,namely,connotationofdiscountrate,identificationofanddisputeaboutdiscountrate,discountingway,impactofthediscountrate,andtheintegratedevaluationmodelofclimatechangeimpactandthediscountevaluation.Astheclimatechangeeconomicanalysisshows,thereisamajordisputeaboutdiscountratebetweenthemarketschoolandtheethicschool.Rateofdiscountlargelyrelatestothepresentvalueofpotentiallossattributabletoclimatechange,andtheninfluencestheselectionofpoliciesforadaptingandslowingdownclimatechange.Inthepast,theconstantindexdiscountwasadoptedasthemainway.Butwiththefullunderstandingofdiscountrate,theuncertaintyoflossattributabletoclimatechangehasbeenconsideredinthediscount.

  • 标签: CLIMATE CHANGE ECONOMICS DISCOUNT rate
  • 简介:Theeffectsofverticalwindshearontropicalcyclone(TC)intensitychangeareexaminedbasedontheTCdatafromtheChinaMeteorologicalAdministrationandtheNCEPreanalysisdailydatafrom2001to2006.First,theinfluenceofwindshearbetweendifferentverticallevelsandaveragesindifferenthorizontalareasarecompared.Theresultsindicatethattheeffectofwindshearbetween200and850hPaaveragedwithina200-800kmannulusonTCintensitychangeislargerthananyothercalculatedverticalwindshear.High-latitudeandintenseTCstendtobelesssensitivetotheeffectsofVWSthanlow-latitudeandweakTCs.TCsexperiencetimelagsbetweentheimpositionoftheshearandtheweakeninginTCintensity.Averticalshearof8-9m/s(9-10m/s)wouldweakenTCintensitywithin60h(48h).Averticalsheargreaterthan10m/swouldweakenTCintensitywithin6h.Finally,astatisticalTCintensitypredictionschemeisdevelopedbyusingpartialleastsquaresregression,whichproducesskillfulintensityforecastswhenpotentialpredictorsincludefactorsrelatedtotheverticalwindshear.Analysisofthestandardizedregressioncoefficientsfurtherconfirmstheobtainedstatisticalresults.

  • 标签: tropical cyclone intensity change statistical analysis environmental vertical wind shear TC intensity prediction scheme
  • 简介:TenhealthytreespecieswithregularmanagementwereselectedonthecampusofBeijingForestryUniversity,andtheybelongtotalltree,shrubandliana,respectively.Waterpotentialandhydraulicarchitectureparametersofone-year-oldtwigsweremeasuredinsunnydayinthelasttendaysofMarchtothemiddletendaysofMayin2002.Theresultsshowthatthedailychangeinwaterpotentialoftreespeciesexaminedappearsconvex,i.e.thewaterpotentialishigherinthemorningandevening,and...

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  • 简介:Onthebasisofstereoimageanalysis,thechangedetectionofman-madeobjectsinurbanareasisintroduced.Informationoftheheightofman-madeobjectscanbeappliedtoreinforcetheirchangedetection.BycomparisonbetweenthenewandoldDSMs,thechangedregionsareextracted.However,ouraimistodetectchangesofman-madeobjectsinurbanareaandfurtherinthepotentialareasbythemeansofline-featurematchingandgradientdirectionhistogram.TheexperimentsbasedontheaerialimagesfromJapanhaveproventhatthealgorithmiscorrectandefficient.

  • 标签: 市区 城市管理 地理信息 立体图像 人造物体 空间图像
  • 简介:Objective:Toinvestigatetheroleandclinicalsignificanceofp16proteininCondylomaAcuminatum(CA)anditscancerization.Methods:Theexpressionofp16proteinwastestedin33CAsamplesand7cancerizedCAsamplesbyimmunohistochemicalassays.Results:Therewasabnormalexpressionofp16proteininCAandcancerizedCA,mainlymajorproteinexpression.Thep16proteinexpresseedindifferentlocationsindifferentcaseswasasfollows:Inbasallayercellsinnormalcuits;inspinouslayer,granularlayerandstratumcorneumlayercellsinCA;inkeratinpearlperipheralandspinouslayercellsincancerizedCA.Conclusion..Therewasmajorexpressionofp16proteininCAandcancerizedCA,andtheseproteinofthetwogroupsmightnotnaturallybethesame.Ourstudyindicatedthatinclinicalpractice,whenmajorp16proteinexpressioninCAoccurs,it'sriskofcancerizationshoudbesuspected.

  • 标签: P16蛋白 尖锐湿疣 癌化反应 基因表达
  • 简介:Climatechangeisaninevitabletrend,whichchallengessecurityofwaterresourcesinChina,especiallyincities.Assessingvulnerabilityofwaterresourcetoclimatechangeincitieshasimportantroleforpolicymakers.Thepaperconstructsavulnerabilityfunction,includingexposure,sensitivityandadaptivecapacity,accordingtothevulnerabilityconceptproposedbyIPCC,establishesanassessmentindicatorssystemofwaterresourcestoclimatechangeincities,andanalyzesvulnerabilityfeaturesofChinesecitesbasedon655cities'datain2006.Thevulnerabilityassessmentresultsshowthattherearedistinctivedifferencesamongallthecities,betweeneast,centralandwestcities,betweenordinary,bigandmegacities,whilethereisnostatisticalsignificantdifferencebetweennorthandsouthcities.Basedontheresearch,thepapersuggeststhatstrategicemphasisshouldfocusonthecentralcitiesandordinarycities

  • 标签: 脆弱性评估 中国城市 水资源安全 气候变化 城市水资源系统 适应能力
  • 简介:Thispaperfocusesonaseriesofquantitativeanalysismodels,suchasgreyrelationalanalysismodel,hierarchicalclusteranalysismodel,principalcomponentanalysismodel,linearregressionmodelandelasticcoefficientmodel.Thesemodelsareusedtoanalyzethecomprehensivefunctionandeffectofdrivingforcessystemically,includinganalysisonfeatures,analysisfordifferentiatingtheprimaryandthesecondary,analysisoncomprehensiveeffects,analysisofelasticity,analysisofprediction.Theprimaryandcharacteristicfactorscanbeextractedbyanalysisoffeaturesandanalysisfordifferentiatingtheprimaryandthesecondary.Analysisonpredictionandelasticitycanpredicttheareaofcultivatedlandinthefutureandfindoutwhichfactorsexertgreatinfluenceonthecultivatedlandsupply.

  • 标签: 定量分析模型 灰度关联 分层分析 弹性系数模型 地籍测量
  • 简介:1912年,法国语言学家AntoineMeillet首先提出"语法化"这个词,以概括语法化这种语言现象。从那时起,该理论激发了近代语法化研究的发展,西方语言学家针对这一语言现象进行了大量的研究。我国语言学家从20世纪80年代开始对这一理论进行研究,并将这一理论与汉语中的实词虚化相结合,取得了巨大的成果。本文旨在运用语法化理论对汉语助词"的"的语法化过程进行分析,以揭示这种语言现象背后的规律,进而彰显语法化理论的普适性。

  • 标签: 语法化 汉语助词“的” 发展趋势
  • 简介:HubeiProvinceisoneofthecriticalgrainproductionregionsinChinawiththequantitativecultivatedlandandgoodnaturalcondition;itplaysanimportantroleingrainsecurityinChina.However,owingtorapideconomicgrowth,populationpressures,anthropogenicactivities,andnaturaldisasters,thequalityofthecultivatedlandhassignificantlydecreasedinrecentyearsandenvironmentalresourcesareunderincreasingstress.Inordertoresearchonthemechanismofthechangeofthecultivatedland,thispaperanalyzesqualitativelytheinfluencingfactorsofthecultivatedlandchangeinHubeiProvincefrom1978to2004,anddistinguishesthedirectfactorsfromindirectinfluentonesbymeansoftheapproachofthepathanalysis.Theresultshowsthattheareaoftherentlandinthetotalnon-agriculturalland,thetotalpopulationgrowthandthefixedassetinvestmentarethemainfactorsdecidingthechangeofthecultivatedland.Meanwhile,thedensityofthetransportationnetwork,theproportionofpercapitaincomeofruralcitizenstothatofurbancitizens,non-agriculturalgrossdomesticproduction’sshareofthetotalGDPhasalessdirecteffectbutamoreindirectinfluenceonthedecreaseofthecultivatedlandinHubeiProvince.Theresultmeansthatwhilesomefactorshavelessdirectinfluenceonthechangeofthecultivatedland,itsindirectinfluencearesignificant,viceversa.Thusit’snecessarytoadoptacomprehensivemeasurementtoprotectthecultivatedland.

  • 标签: 耕地变革 关联式分析 路径分析 湖北省
  • 简介:Theauthorsreviewedthepreviousresearchresultsaboutthecolorchangesinheattreatedwood,anddeeplyanalyzedtheeffectofheattreatmentmethodandparametersincludingtemperatureandtimeofheattreatment,speciesandchemicalcompositiononthecolorchangesinheattreatedwood.Therelationshipsbetweencolorchangesandchemicalcomposition,physicalandmechanicalpropertieswerefound.Theopticalstabilityofthecolorofheattreatedwoodwasstudied.Somesuggestionswereproposedforthefutureresearch.

  • 标签: HEAT treatment of WOOD WOOD color
  • 简介:AspecialinterpolationprogramGREENhasbeendevelopedtodeterminetheclimaticparametersforthedistributionregionofChinesepine(PinustabulaeformisCarr.)basedontheresearchesonthedistributionofthetreespecies.Thecentralregion,whichisthemostsuitabledistributionregion,andpotentialdistributionregionofthespeciesundercurrentclimaticconditionsweremappedusingaGeographicInformationSystemIDRISI.Accordingtotheaveragedpredictionsby5GCMsfor2030,aprojecti...

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  • 简介:Abetterunderstandingofarecentlyraisedargumentonwhetherthereoccursastructurechangeduringyieldinghasbeenacquiredbyusingmolecularsimulation.Thatis,whenmonitoringthedisplacementsofallatomsbeforeandaftertheyield,astructuretransitiondoesoccur,whichisthe'atomicjump'thatcoordinatestheamountoftheatomsinthepolymerandmakesalargestepbeyond--0.05nmforallthoseatoms.Resultsindicatethatthecomplexofpolymerchainpackinginducesthemultipleatomicjumpsaroundtheyieldpoint.Thisexplainswhypolymershaveabroaderyieldingpeak.``

  • 标签: Polymer deformation Yield Structure transition ATOMIC
  • 简介:在这研究,空间分发和在东北中国的农业热和降水资源的变化趋势被分析在这个区域在agroclimatic资源上探索未来气候变化的影响。这研究基于输出从为从2005~2099的东北中国的地区性的气候模型系统的气象学的数据,在低、高的放射的强迫情形RCP4.5(低排放情形)和RCP8.5(高排放情形)下面是在IPCCAR5求婚了。在基线情形下面的模型产量,和RCP4.5和RCP8.5情形从1961~2010在东北中国从91个气象学的车站与观察数据被吸收执行分析。结果显示那:(1)到北方的来自南方的温度减少的空间分发,和温度被投射在所有区域增加,特别在一种高排放情形下面。在基线情形下面的平均年度温度是7.70整灭牥瑡牵?癥湥獴椠?桃湩?畤楲杮ㄠ吗??

  • 标签: 气候变化 agroclimatic 资源 东北中国
  • 简介:当前transrectal指导超声的前列腺活体检视(TRUS-Bx)是最普通的urological过程之一,在经历TRUS-Bx的病人之中在欧洲和统一States.1每年与超过100万表现了,约三分之一个将收到前列腺癌症(PCa)的诊断,当三分之二在起始的活体检视上收到否定结果时。否定活体检视病人在1年维持12%的重复活体检视的估计的风险并且38%在5years.2标准TRUS-Bx是可能的系统地错过重要肿瘤,特别地在gland.3的前面、顶端的部分,在下一十年的泌尿科医师的一个关键目的是增加过程的精确性并且避免不恰当的活体检视的使用。

  • 标签: 前列腺癌 活检 穿刺 发病率 呼叫 心理