简介：AfterthebreakthroughofshalegasexplorationanddevelopmentintheOrdovicianWufengFormation(Fm.)andSilurianLongmaxiFm.ofChongqingJiaoshibaarea,Changning-Weiyuanarea,etc.inSichuanbasin,aseriesofdiscoveryandbreakthroughwereobtainedbyChinaGeologicalSurveyintheCambrianNiutitangFm.andSinianDoushantuoFm.shaleoftheareaswithcomplicatedstructureoutsideSichuanbasin.BasedontheunderstandingofthelawofshalegasenrichmentinLongmaxiFm.inthebasin,thispaperputsforwardthreeelementsoftheformationandenrichmentofshalegas,whicharethe“Source”,the“Diagenesis”andthe“Accumulation”,afterdeeplystudyingthelawshalegasenrichmentandaccumulationinSinian-Cambrianreservoirofthecomplexstructureareaoutsidethebasin.The“Source”meansthesedimentaryenvironmentandpetrologicalcharacteristicsoforganicshale.The“Diagenesis”meansthebasintectonicsubsidenceandhydrocarbongenerationandexpulsionprocessoforganicmatter.The“Accumulation”meansthetectonicupliftandshalegaspreservation.ItisproposedthattheSinian-CambrianandOrdovician-SilurianblackshaleseriesinthemiddleandupperYangtzeregionofsouthernChinawerebothformedinthedeep-watershelfenvironmentofrifttroughandforelandbasinrespectively.Thedessertintervalswereformedinthestrongreductionenvironmentundertransgressivesystemtract.Theshalelithologybelongstocalcium-siliceousandcharcoal-siliceousrespectively.BasedonthesummaryofstructuralevolutioninYangtzearea,thecorrelationofstructuralburialdepthwithshalediagenesisandthecouplingevolutionoforganicmatterwithporestructurearediscussed.Combiningwithstructuralstyles,thepreservationconditionsofshalegasarediscussed.Fivetypesofshalegasreservoircontrolmodelsarefurtherdescribed.Twotypesoffutureexplorationdirections,whicharereversefaultsynclineandpaleo-upliftmarginincomplexstructuralareaoutsidethebasin

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简介：摘要：煤缝接和充满煤的地区的形成是在煤累积过程的一系列因素的综合结果。煤累积系统是煤累积因素的建筑上的聚集。它能被分类进4个层次：全球煤累积超级系统，煤累积领域大系统，煤累积盆系统，和煤缝接或煤缝接设定分系统。煤累积进程是一个开、动态、灰的系统，并且是同时有象聚集的如此的性质的一个系统，关联，全部，面向目的，层次，和环境适应性。在这份报纸，我们作为一个系统拿煤累积过程学习煤缝接和充满煤的地区的起源；并且我们将讨论煤累积过程的系统的分析的方法论。作为一个例子，Ordos煤盆被调查阐明煤累积系统分析的方法的应用程序。

简介：Rivericeisanimportanthydraulicelementintemperateandpolarenvironmentsandwouldaffecthydrodynamicconditionsofriversthroughchangesbothintheboundaryconditionsandthethermalregime.Theriverbendhasbeenreportedasthecommonlocationfortheinitiationoficejamsbecausethewaterflowalongariverbendismarkedlyaffectedbythechannelcurvature.Inthisarticle,theexperimentalstudiesabouttheiceaccumulationinariverbendarereviewed.Basedonexperimentsconductedsofar,thecriteriafortheformationoficejamsintheriverbend,themechanismsoftheiceaccumulationintheriverbendandthethicknessprofileoftheiceaccumulationintheriverbendarediscussed.Thetwo-equationturbulencemodelisusedtosimulatetheiceaccumulationunderanicecoveralongariverbend.Aformulaisproposedfordescribingthedeformationoftheicejambottom.Ourresultsindicatethatallsimulatedthicknessoftheiceaccumulationagreesreasonablywellwiththemeasuredthicknessoftheiceaccumulationinthelaboratory.

简介：Thephotochemicalpropertiesofpolypropylviologen(PPrV)-cationexchangeableresincomplexeswerestudies.Thecolorofthesecomplexeschangedtobluewhenirradiatedbyamercurylamp.UVandESRstudiesindicatedthatanefficientviologenradicalaccumulationoccursinPPrV-resincomplexes.Anexplanationforthestablephotoinducedredicalaccumulationisproposed.

简介：TheaccumulationandabsorptionkineticsofLabyfish(Oryziaslatipes)frombothwaterandfoodweretestedinfreshwater.TheeffectsofLaconcentrationinwaterandfoodandtheexistenceoffulvicacidontheabsorptionwereinvestigated.ItwasdemonstratedthattheamountofLaaccumulatedinfishincreaseswiththeincreaseinLaconcentrationinwaterandfoodandexposureduration,whichthenormalphysiologicalactivityoffishwasinhibited.Withfulvicinthesystem,theabsorptionratedecreasessignificantlyindicatingthatthefulviccombinedLaisnotavailabletothefishuptake.

简介：TwoecotypesofElsholtzia,ElsholtziasplendensandE.Argyi,aredominantplantsgrowingonCuandPb-Znsmelters,respectively.SamplesofthetwoecotypesandthecorrespondingsoilsfromfieldsofacopperminingareaandaPb-ZnminingareaofZhejiangProvince,China,wereanalyzedtoinvestigateCuorZntoleranceofthesetwoecotypes.EffectsofnineCulevels(0,5,10,20,40,80,160,240and320mgCuL-1asCuSO4@SH20)ongrowthanduptake,translocationandaccumulationofCuinthesetwoecotypeswereexaminedinasolutioncultureexperiment.Theexperimentalresultsshowedthatdryweights(DW)ofshootsandrootsweredepressed,andgrowthofE.SplendenswaslessdepressedthanthatofE.Argyiwhentreatedwith≥5mgCuL-1.ConcentrationsofCuinshootsofE.SplendensandE.Argyiexceeded1000mgkg-1DWat≥40mgCuL-x.ThemaximumCuaccumulatedintheshootsofGu-treatedE.SplendensandE.Argyireached101and142μgplant-1.Furthermore,analysisofplantsamplesfromthefieldsshowedthatthesetwoecotypescantolerantexcessheavymetalsandproducedhighdrymatter,andE.Splendenscanaccumulate11.7mgCuplant-1grownontheCusmelter.Therefore,E.SplendensandE.Argyicouldbegoodplantsforphytoremediation.

简介：ExperimentswerecarriedoutonavegetablefieldwithPekingcabbage(Brassicapekinensis(Lour.)Rupr.),cabbage(Brassicachinensisvar.OleiferaMakinoandnemoto),greencabbage(BrassicachinensisL.),spinach(SpinaciaoleraceaL.)andrape(BrassicacampestrisL.)tostudytheeffectsofNformsandNratesontheirgrowthandnitrateaccumulation.Theresultsindicatedthatapplicationofammoniumchloride,ammoniumnitrate,sodiumnitrateandureasignificantlyincreasedtheyieldsandnitrateconcentrationsofPekingcabbageandspinach.Althoughnosignificantdifferencewasfoundintheyieldsafterapplicationofthe4Nforms,nitrateNincreasednitrateaccumulationinvegetablesmuchmorethanammoniumN.ThevegetableyieldswerenotincreasedcontinuouslywithNrateincrease,andoversupplyofNreducedtheplantgrowth,leadingtoayielddecline.Thistrendwasalsotruefornitrateconcentrationsinsomevegetablesandatsomesamplingtimes.However,asawhole,thenitrateconcentrationsinvegetableswerepositivelycorrelatedwithNrates.Thus,additionofNfertilizertosoilwasthemajorcauseforincreasesinnitrateconcentrationsinvegetables.Nitrateconcentrationsweremuchhigherinroots,stemsandpetiolesthaninbladesatanyNrate.

简介：Thereexiststrongmultipatheffectsinashallowwateracousticchannel.Thepaperdiscussessomeoftheseimportanteffects.Thestati-sticalcharacteristicsofmultipathinshallowwaterarefirstdescribed,thentheanti-multipathabilityofDTCAschemeisanalysed.TheoreticalestimationsandfieldexperimentshaveprovedthatbothDTACAandDTCCAhaveahighabilityofanti-multipathandevenmakeuseofthemultipathenergy.

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简介：DistributionandaccumulationofNd,anditseffectonsecretionofprogesteroneinmicewerestudiedusingradioisotopetracer(147Nd)technique.Followingsingleintraperitonealadministrationofneodymiumtracedwith147Ndatadoseof200mg*kg-1,unevendistributionoftheradioactiveNdoccurredinvarioustissuesandorgans.Muchamountof147Ndaccumulatesinthebone,andtheresidueincreaseswiththelapseoftime.Someamountofradioactivitywasalsodetectedineyes,bloodandbrain,buttheaccumulationdecreasedwiththetimeduetoexcretionandre-distributioninmice.Incomparisonwithcontrols,concentrationofprogesteroneisfoundtobesignificantlylowerintheserumofadministeredmice,indicatingasignificantlyinhibitoryeffectofNdonsecretionofprogesterone.

简介：在每个分解阶段的森林土壤性质上的崽秋天和它的效果在热带季风被调查三种植园(7年的相思树种植园，15年的相思树种植园和18年的混合种植园)和从孟加拉国的Chittagong多山的区域的一个自然森林(Sitapahar森林)的气候的条件。结果证明有机物的全部的累积与种植园年龄增加了，与年度累积率的减少伴随。在一样的植被类型以内，有山上的显著地改变的腐植质(p≤0.05)的新鲜、部分分解的垃圾的器官的累积放，在底部斜坡上是最高的并且在森林里向山顶逐渐地减少。在土壤有机物的累积的反向的趋势在15年的相思树auriculiformis种植园，燃料木头在哪儿收集了被显示出。在7年、15年的相思树和18年的混合宽广离开的种植园，全部的有机物生产由组成评价新鲜，在土壤的部分并且完全分解的垃圾以及合并有机物是2554.31，705.79和1028.01kg·h−1·a−1,分别地，并且从新鲜垃圾的相应贡献是38.23，19.40和30.48kg·h−1·a−1,分别地。在三种植园和自然森林，在一般水准上，新鲜垃圾组成了32.45%，部分与腐植质13.50%分解了垃圾并且合并了在有0.90厘米的吝啬的崽厚度的土壤54.56%全部的有机物生产的有机物。土壤酸味随有机物的分解舞台的增加增加了。

简介：Inthispapertheprocessofknowledgeaccumulationforaparticulartechnologyisstudied.Twocountries,saythetechnologyfollowerandthetechnologyfrontier,areconsidered.Thefrontier’sknowledgegrowthisdeterminedbyitsR&Deffortsonthetechnology.ThelevelofknowledgestockforthefollowercountryisaugmentedbyitsR&Dactivitiesforthetechnologyandabsorbingsomeoftheexternalknowledgethroughspilloverfromthefrontier.Theextenttowhichthefollowerisabletoexploittheexternalknowledgedependsontechnologicalgap,absorptivecapacity,absorptiontimeanddegreeofspillover.Newconceptssuchasnaturalandenhanceddegreeofspillover,backgroundandinnovativeknowledgeandabsorptionspeedareintroducedinthepresentworktodeeplyexploretheprocessofknowledgespillover.ThefactorsinfluencingtheknowledgedevelopmentinthelongtermaresimultaneouslystudiedinanintegratedstructureprovidedbytheSystemDynamicsapproach.Thisframeworkshowstheresponsestothechangesandprovidesthebasisforexaminingtheinteractionsamongthevariablesovertime.

简介：Numericalsimulationofcarefulparallelarithmeticofoilresourcesmigration-accumulationofTanhaiRegion(three-layer)wasdone.Carefulparalleloperatorsplitting-upimplicititerativescheme,parallelarithmeticprogram,parallelarithmeticinformationandalternating-directionmeshsubdivisionwereputforward.ParallelarithmeticandanalysisofdifferentCPUcombinationsweredone.Thisnumericalsimulationtestandtheactualconditionsarebasicallycoincident.Theconvergenceestimationofthemodelproblemhassuccessfullysolvedthedifficultprobleminthefieldsofpermeationfluidmechanics,computationalmathematicsandpetroleumgeology.

简介：<正>Manygeologistshaveproposedthattherearetwokindsgeologicalbackgroundandwaysfortheevolutionandformationofthepeatbogs,i.e.Onewayoccurringfromwaterbodyenvironmentcalled"waterbog-forming",theothercomesfromlandenvironmentandcalled"landbog-forming".Inthepaper,studyshowsthatalthoughthereareonlytwotypesoforiginalenvironments,thereanotherevolutionwayforpeatbog-formingbesidesthetwomentonedabove.Accordingtothebog-formingprocess,thethirdwayofbog-forming,amixedway,isalternativelychangeofwaterbodyandlandenvironments,calledtransfomedbog-

简介：1.ObjectivesAsthediscoveryofgashydrateinQilianMountainpermafrostin2008,themaincontrollingfactorsanddistributionofgashydratearenotclear.Thisrestrictsthefurtherprogressingashydratesurveyinthisarea.Hence,ChinaGeologicalSurveyerectedtheproject"ExplorationofgashydrateresourcesintheQilianMountainanditsadjacentareas"continuouslytobetterunderstandthegashydrateaccumulationintermsofgreatergashydratediscovery.

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简介：ThereareplentyofSinianandCambrianpotentialshalegasresourcesinSouthChina,whichischaracterizedbyhighthermalevolutiondegrees,poordrillingperformancesandonlyoccursinlocalareas.Takingtheprinciple“hightofindlow”isthekeyissuetoachievingabreakthroughinoldershale.ChinaGeologicalSurveydrilledintheperipheryoftheProterozoicbasement,i.e.theHuanglinganticline,inthewesternHubei,andHannanpaleocontinentinthesouthernShanxi.Itreceivedhigh-qualitygas-bearingshalewithrelativelylowRointheinLowerCambrianNiutitangformationandSinianDoushantuoformation.BasedongeologicalconditionsofshalegasreservoirsintheHuanglinganticline,thispaperputsforwardthenewmodelnamed“Controloverreservoirsbyperipheryofbasement”aboutshalegasaccumulation,suggestingthattheshaledepositedinadeepwatercontinentalshelfintheperipheryofthebasementischaracterizedbyshallowburial,ashortburialtime,stabletectonics,relativelylowthermalevolutiondegrees,andshalegasreservoirsinagoodcondition.TheshaleoftheSinian-CambrianstratadepositedindeepwatercontinentalshelvesintheperipheryofChuanzhongpaleo-upliftinSichuan,HannanpaleocontinentinthesouthernShanxi,HuanglinganticlineinwesternHubeiandJiangnang-Xuefengpaleo-upliftinHunanandGuizhouprovincehavegoodshalegasexplorationpotential.

简介：Recently,alarge-scaleOrdovicianoilandgaspoolhasbeendiscoveredinXinken,northoftheTarimBasin,andithasstronglyheterogeneousreservoirsandcomplicatedfluiddistribution.Throughanalyzingoil,gasandwatersamplescollectedfromthisarea,incombinationoffieldproductionandtestingdata,thisstudyrevealsthattheXinkenoilpoolcontainsdominantlynormaloilcharacterizedbylowviscosity,lowsulphur,andhighwax.Ithasalowcontentofnaturalgas,whichpresentstypicalcharacteristicsofwetgasandisoil-associatedgas.Oil-gascorrelationshowsthattheoilwasfromtheMiddle-UpperOrdoviciansourcerocksandthechargeandaccumulationofoilandgastookplaceintheLateHercynianPeriod.Controlledbypaleogeomorphology,sedimentaryfacies,ancientkarstification,faults,andotherfactorsintheCaledonianPeriod,theOrdoviciancarbonatereservoirsaredominatedbydissolvedpores,cavitiesandfractures.Thereservoirbodyoffracturesandcavitiesisdistributedintheshapeofstripandlaminatealongfaultsandexcellentreservoirsaremostlyintherangeof70–100mbelowthetopoftheYijianfangFormation.Asawhole,theXinkenoilpoolisafracture-cavitypoolcontrolledbyinterbeddedkarstreservoirsandisacomplexcomposedofstackedkarstfracturesandcavitiesofvarioussizes.Itcontainsoilinlargeareashorizontally,whichisquasi-laminatedindistribution,andtheaccumulationofoilandgasiscontrolledbythedistributionanddevelopmentdegreeoftheOrdoviciancarbonatereservoirs.Thestudyshowsthatthisareahasabundantresourcesandagreatexplorationpotentialforoilandgas.

简介：Theeffectofvariousnitrogensourcesonthegrowthanddocosahexaenoicacid(DHA)yieldisdeterminedinCrypthecodiniumcohniiATCC30556.Singlenitrogentryptoneandpeptonearesuitabletogrowth,thedryweightbiomassisupto2.78g/Land2.70g/Lrespectivelyonmediumcontaining0.34g/Lnitrogen.PeptoneisafavorablenitrogensourceforDHAaccumulation,DHAyieldincreasesupto338.56mg/L.UsingpeptoneandKNO3asamultiplenitrogensource,thehighestbiomassandDHAyieldareobtainedfrommediacontaining0.34g/Lnitrogeninwhichtheratioofpeptone-N:NO3--Nis1:2,andthebiomassandDHAyieldare2.98g/L(DW)and527.97mg/Lrespectively.