简介:Fifty-sevenstations(48gridstationsandninestratifiedstations)weresampledacrossthestudyregion(67.000°–88.394°N,152.500°–178.643°W)duringthe4thChineseNationalArcticResearchExpedition(CHINARE4)fromJulytoAugust2010bytheicebreakerR/VXuelong.Atotalof24speciesofHydromedusaewereidentifiedfrom130zooplanktonsamples,ofwhichsevenspeciesbelongedtoAutomedusa,eightspeciestoAnthomedusae,fourspeciestoLeptomedudae,andthreespeciestoSiphonophora.CatablemamulticirratumKishinouye,1910,BougainvilliabitentaculataUchida,1925,andEuphysajaponica(Maas,1909)wererecordedforthefirsttimeintheArcticsea.Inthepresentpaper,18speciesofHydromedusaeweredescribedandillustrated,ofwhichthreespeciesweredescribedforthefirsttimeintheArcticsea,and15speciesweredescribedforthefirsttimeinChina.
简介:Thegrowth,biochemicalcontentandbioaccumulationquantityof2,2’,4,4’-tetrabromodiphenylether(BDE-47)inSkeletonemacostatumwerestudiedunderdifferentN:Pratios(1,4,16,64and128).AllcellularbiochemicalcontentsofS.costatumpresenteddecreasingtrendovercultivationtime.Atearlystageofcultivation,thecellularprotein,carbohydrateandlipidinS.costatumpresentedhighervaluesintreatmentsofN:P=4and16.However,theywerelowerinthesetreatmentsatthelatestage,buthigherintreatmentsN:P=1and128.Similarly,BDE-47levelspercellofS.costatumwerehigherintreatmentsofN:P=4and16atearlystageofcultivation,whichwere3.8and3.7ng(106cells)-1,respectively.Atthemiddlestageofcultivation,theBDE-47levelperS.costatumcelllowered;anditfurtherreducedinthetreatmentsofN:P=4and16atthelatestagewiththevalues0.6and0.5ng(106cells)-1,respectively.However,itroseinN:P=128,reachingupto2.3ng(106cells)-1.ComparedwithBDE-47percell,BDE-47peralgalvolumeunderdifferentN:Pratiosdidnotpresentobviousdifference.ThequantityBDE-47accumulatedpercellofS.costatumwaspositivelycorrelatedwithprotein,carbohydrateandlipidpercell;meanwhile,theBDE-47pervolumehadapositivecorrelationwithbiochemicalcontentpervolume.ThevariationofbioaccumulationabilityofBDE-47inS.costatumcanbeexplainedbybiochemicalchangesduetoN:Pratios.
简介:Acomprehensivestrengthmonitoringsystemusedonafixedjacketplatformispresentedinthispaper.Thelong-termmonitoringofW-11-4Aplatformachieved.Structuralresponses(strainandacceleration)atselectedlocations,aswellasassociatedenvironmentalparameters,havebeenobtained.Theemphasisofthepaperisplacedonthesystemdesign,andtheinstrumentationandoperationmethodologyemployedinthemonitoringofthestructuralresponses.Theperformanceofthesystemandthecharacteristicresultsobtainedduringits13-monthoperationarealsosummarized.
简介:2009年南海主权争端激化,恰逢是年日本民主党上台首度实现真正意义上的政坛轮换。然而,鸠山由纪夫下台后,在其继任的民主党菅直人和野田佳彦两任首相任期内日本南海政策却发生了重大调整,由此前较为低调克制的战略渗透逐步转向公开介入,在政策立场、介入姿态和路径手段上都表现出新的变化。究其缘由,寻求缓解对美外交压力、弥合政坛朝野关系、转移国内矛盾以及提振民众支持的国内政治考量发挥了重要作用,凸显出日本国内存在的右倾保守思潮泛滥和对美从属外交路线僵化的根本问题。菅直人和野田佳彦两任内阁在南海政策上的急转弯凸显其短视的战略视野和稚嫩冒险的外交风格,为其后安倍内阁的南海政策运筹提供了干涉的基本范式,并且对中日关系的发展投下了巨大的阴影。
简介:Thispaperpresentsthedetaildesignconditions,designcriteriaandmethodsaswellasdesignconclusionsoftheprocess,structureandcorrosionoftheproductionflowlinesandhighpressurewaterinjectionlinesinBZ34-2/4oilfieldinBohaiBay.AtpresentthisdesignrepresentsthedesigncapabilityandlevelinthefieldofthesubmarinepipelineengineeringofChina.
简介:本文介绍了“金玫瑰”轮与“金盛”轮碰撞引发的船舶污染系列案件的详细审理情况。对该系列案件以及相关同类案件中出现的问题进行了总结梳理,并对案件审理中涉及《海商法》《海洋环境保护法》《海事诉讼特别程序法》以及最高人民法院司法解释、国务院部门行政法规相关具体条文进行对比分析,点出当中存在的矛盾与冲突,并希望通过这些探讨为相关的法律修订提供一些有益的思路。
简介:Onthebasisofthetemperatureobservationsduring1961-2000inChina,sevencoupledgeneralcirculationmodels'(GCMs)extremetemperatureproductsareevaluatedsuppliedbytheIntergovernmentalPanelonClimateChange's4thAssessmentReport(IPCC-AR4).Theextremetemperatureindicesinusearefrostdays(FD),growingseasonlength(GSL),extremetemperaturerange(ETR),warmnights(TN90),andheatwavedurationindex(HWDI).Resultsindicatethatallthesevenmodelsarecapableofsimulatingspatialandtemporalvariationsintemperaturecharacteristics,andtheirensembleactsmorereliablethananysingleone.Amongthesevenmodels,GFDL-CM2.0andMIROC3.2performancesaremuchbetter.Besides,mostofthemodelsareabletopresentlineartrendsofthesamepositive/negativesignsastheobservationsbutforweakerintensities.Thesimulationeffectsaredifferentonanationwidebasis,with110°Nasthedivision,east(west)ofwhichtheeffectsarebetter(worse)andthepoorerovertheQinghai-TibetanPlateauinChina.Thepredictionsforthe21stcenturyonemissionsscenariosshowthatexceptdecreasesintheFDandETR,otherindicesdisplaysignificantincreasingtrend,especiallyfortheindicesofHWDIandTN90,whichrepresentthenotableextremeclimate.Thisindicatesthatthetemperature-relatedclimateismovingtowardstheextreme.Inthelate21stcentury,theGSLandTN90(HWDI)increasemostnotablyinsouthwestChina(theQinghai-TibetanPlateau),andtheFDdecreasemostremarkablyintheQinghai-TibetanPlateau,northwestandnortheastofChina.ApartfromSouthChina,theyearlychangerangeoftheextremetemperatureisreducedinmostofChina.