简介：基于S-100的产品规范为各类用途的海上产品和服务提供了生产和应用标准。然而,S-100产品规范在开发编制过程中未充分考虑产品之间的互操作问题,会导致终端应用在＂S模式＂下处理S-100数据时出现要素和图示的混乱。依据IHO互操作目录规则,从基于航行用途的产品预置模式和融合等级两方面,说明S-100产品数据的融合处理方法,为互操作问题的解决提供思路。

简介：TheupwellingareaintheChangjiangEstuarywasselectedtocollectthecore,wheretheredtideoccurredfrequentlyandhypoxicexisted.Thetotalorganiccarbon(TOC),totalnitrogen(TN),biogenicsilica(BSi)andstableorganiccarbonisotopicratios(δ13Corg)weredeterminedonthe210Pb-datedsedimentcore.TheconcentrationsofTOC,TN,BSiaswellastheirsedimentationfluxeshaveincreasedtosomeextentsincethe1970s.TOCandTNfluxesincreasedabout45%,36%respectively.Theaverageδ13Corgvalueinthecorewas-23.67×10-3whichremainednearlyconstantbeforethe20century.Theδ13Corgvaluesincreasedafterthe1900s,twomarkedincreaseswereobservedfromthe1950sandthe1970s.Asimpleδ13Corgmodelwasusedtoestimatethecontributionofterrigenousandmarineorganicmatterinputsforthesediment,whichindicatedtheincreaseinaccumulationsincethe1970shasbeenalmostexclusivelymarine.Theincreasingofmarineorganicmatteraccumulation(TOC,TNandBSi)wascorrespondingwiththeincreasingoffertilizerconsumptionandtheNO3-NbudgetsfromtheChangjiangRiver.Theriverinerunoffoffertilizersandnutrientsstimulatedthealgaeblooming.Enhancedprimaryproductionresultedinanenrichmentoforganicmatterinthesediment.ThesedatasupportthehypothesisthatanthropogenicnutrientloadinghasbeenasignificantfactorontheeutrophicationintheChangjiangEstuary.

简介：Thestudydealswiththeobservationofthechangesintheelectricalactivitiesof8healthydiversinthe80mswsaturation-100mswexcursionhelioxdivebyDCG.Resultsshowedsignificantchangesinthe24hofaverageheartrate,thedecreaseofheartrateatsaturationstoragedepthanddecompressionperiodsbeing15.5%and19.7%respectively.Fortuitoussupraventricularprematurebeatsappearedin8diversandventricularprematurebeatsin5diversduringexposure.TransientischemicST-Tchangesin6diversoccurredrepeatedlyduringdivingoperations.ThediscussionputsuptheviewthattheST-Tchangeswereduetothestressreactionofthebodyinducedbythecombinedeffectofsuchstressfactorsashyperbaricpressureperse,highpartialpressureofoxgen,noiseandtheclosedrestrictedchamberenvironment.