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简介：Byuseofthehydrodynamicmodel,theharmonicconstantsof8principaltidalconstituents(Q_1,O_1,P_1,K_1,N_2,M_2,S_2andK_2)areobtainedfortheEastChinaSea,andtheharmonicconstantofS_aiscalculatedbytwo-dimensionalinterpolation.Thecalculatedresultsagreewellwiththeobserveddataaroundthesea.TheharmonicconstantscanbeusedtopredictthetideintheEastChinaSea.Thecotidalchartsofthe9tidalconstituentsrevealtheirdistribution.

简介：性决心和性区别是在鱼的重要现象，但是在Takifugu的性决心的机制磨擦ripes糟糕被理解。在我们在T的学习，为DMRT(DMRT1，DMRT2和DMRT3)的基因的表示模式，sox9a和sox9b。rubripestissues与反向的抄写(RT)-PCR察觉被验证。它在睾丸被看那DMRT1expressions，卵巢低得多，并且没有表情在肌肉，血和尾巴鳍被发现。然而，为DMRT2和DMRT3的表情没在上面说的纸巾被发现。sox9a的抄本在肌肉，鳍，卵巢和睾丸，然而并非在血被检测，而sox9bexpression仅仅在卵巢被检测。在T.rubripes性腺的DMRT，sox9a和sox9b的表示模式建议这些基因不能是性特定的。

简介：高度表并且在situ，数据被用来估计吝啬的表面在沿着115牲湥?潺慮l的节的带的因地球自转而引起的电流？？

简介：WeusedearthquakecatalogsrecordedbyGuangdongSeismologicalNetworkfrom2008to2014toresolvethespatialvariationsofb-valuesinthecoastalareaofGuangdong,particularlyinthreekeyresearchareas(Yangjiang,Heyuan,andoffshoreNanaoIsland)withstrongseismicity.Ourresultsrevealedthatb-valuesexhibitedsignificantspatialvariations,andzoneswithlowb-valuescouldindicatethemostlikelyseismogenicareaoflargeearthquakes.Weobservedthreeclearlowb-valuepatchesintheoffshoreNanaoIsland.Wefoundadistincthighb-valuepeakatthedepthof11kmandtwominimumpeaksatabout14and7–8kmintheYangjiangarea.Theoverallb-valuesgenerallydecreasewithdepthintheHeyuanarea.Thespatialvariationsofb-valuesreflecttectonicanomalies;thatis,the‘low-high-low’distributionofb-valuesintheoffshoreNanaoIslandandtheYangjiangareamayindicatetheanomalyofthecrustalstructurewithaweaklayer.Theb-valuesofreservoir-inducedseismicityareobviouslylowerthanthatinducedbytectonism.Thisfindingindicatesthatthereservoirareaisgenerallyathighstressstateundertheconditionofhighporepressure.Weinferredthatlargeearthquakesmightbepronetooccurat10–12kmdepthintheoffshoreNanaoIsland,at12–15kmdepthintheYangjiangarea,andatthelowerpartoftheseismicactivityzoneintheHeyuanarea.Moreover,theupstreamareaoftheXinfengjiangreservoiristhemostlikelyareaoffuturelargeearthquakesintheHeyuanarea.

简介：SequencevariationofpartialcytochromebgenesbetweentwoCoiliaspecies,C.ectenesandC.mystus,wasinvestigated.Ofthe402nucleotides,twenty-seven(6.72%)arepolymorphicandallaresynonymoussubstitutions.Atthethirdpositionsofgeneticcondonofcytochromebgene,thetwospeciesshowanextremeanti-Gbias(＜4%)andapronouncedbiastowardsAandC(＞68%).Thereisnoaminoacidsequencedivergencebetweenthepartialcytochromebgenesofthetwospecies,indicatingaclosegeneticrelationshipbetweenthem.Thek-2pgeneticdistanceofpartialcytochromebsegmentofthetwospeciesis0.072,suggestingthatthespecieswereseparated3.6Maago,inthemiddlePliocene.Ourresultrevealsthatthecytochromebgeneisanappropriatemarkerforstudiesofpopulationgeneticstructuresandphylogeographicpatternsofthetwospecies.

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简介：Effectsofthemixtureofβ-ecdysoneandpolypodine-B(2:1W/W)onthemoultingandgrowthofprawn,Penaeusorientalisswerestudiedinlaboratorybyrearingtheanimalwiththeaddedcompounddiets.Theresultsshowedthattheadditionofthemoultinghormone(M.H)mixturetocompounddiets,from1.33×10-6to30×10-6,couldincreasemoultingactivityandgrowthrateoftheprawntodifferentextents,amongwhichthe5.33×10-6-10.67×10-6additionhadstatisticallysignificanteffects.However,60×10-6addeddietscausedmoultingandgrowthinhibitionsandcuticlethickening.Theanalysesofprotein,waterandashcontentsoftheprawnshowednoremarkabledifferencesbetweenhormonedosedanimalsandthecontrol.

简介：HepatitisBvirus（HBV）isasignificantglobalpathogenandefficientcureforHBVpatientsisstillachallenginggoal.Wepreviouslyreportedthatacidicmucopolysaccharidefromstichopusjaponicusselenka（SJAMP）couldinhibitHBsAgandHBeAgexpressioninvitro.However,thepotentialanti-HBVeffectsofSJAMPinvivohavenotyetbeenexplored.Inthisstudy,weshowthatSJAMPexhibitspotentanti-HBVactivityinHBVtransgenicmiceinadose-dependentmanner.Specifically,sixtyHBVtransgenicmaleBALB/cmicewererandomlyselectedtoreceivethetreatmentofPBS,lowdoseSJAMP(30mgkg-1),middledoseSJAMP(40mgkg-1),highdoseSJAMP(50mgkg-1)andIFN(45IUkg-1)for30d.SJAMPtreatmentsuppressedserumHBV-DNA,andliverHBsAgandHBcAglevelsinHBV-transgenicmice.ThepresentstudyhighlightsthepotentialapplicationofSJAMPinHBVtherapy.

简介：通过对TOGA—COARE期间的一组锚系仪器阵列资料的分析得出：在赤道西太平洋1°45’S，156°E。海域存在显著的半日潮频内波，它的水平波数（波长）、垂向波数、水平传播速度和垂向传播速度分别约为：3．3×10^-2km^-1（210km），-1．6×10^-3m^-1，2．0m／s，-3．8cm／s。波形向斜下方传播，亦即波能向斜上方传输。它在观测点西南方生成后，向东北方向传播，到达观测海区。流速矢量旋转谱水平随深度的变化呈马鞍形，低谷及深处的峰所在深度分别与南赤道流及赤道潜流的南边界所在深度大体一致。旋转椭圆主轴方位角随深度变化，在浅层（40m处）为北偏东30°，到深处（324m）转为东偏南14°。总体上呈东北方向，表明波来自西南方向。

简介：Huanghe河三角洲是世界的大河之一，自从最后，Huanghe河里的Huanghe河三角洲paleoenvironmental进化是一个热问题冰川。基于联合AMS14核心DYZK1沉积标明日期在的C在亚底部侧面上Huanghe河三角洲和声学的顺序沉没了，phytolith分析在96件沉积样品上被执行。谷物尺寸参数，磁性的危险性与biostratum的垂直变化被相结合重建在Huanghe河三角洲的paleo沉积、气候的条件。在索引参数有一条重要垂直变化法律的学习结果表演，和Huanghe河三角洲的那沉积环境经历了河的facies-sealand转变的进化进程外形潮汐的完全外形浅海的faciesdelta外形自从26.0kaB。P...phytolith分析结果如下。第一，phytoliths被划分成矛尖状，光滑伸长，多刺伸长，一种特殊格律，长矩形，bulliform和其它类型。在不同sedimental环境，phytolith内容定期变化，显示phytolith在沉积环境有的一样装配稳定性的某个度。第二，矛尖状，phytoliths的光滑伸长和多刺伸长范畴在潮汐的扁平的外形和三角洲免职有更大的内容，当时一在浅海的外形的更小的内容和河的外形环境。通过变化系数的比较分析，第三，在沉积的主要phytolith范畴的内容在sealand转变外形和河的外形免职有一个更大的变化振幅，当在tidalflat外形和三角洲外形免职是更稳定的时。

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：Heatshockproteins(HSPs),suchasHSP70andHSP90,areasuiteofhighlyconservedproteinsproducedinallcellularorganismswhentheyareexposedtostresses.Inaquaticanimals,theyhavebeenprovedtoplayimportantrolesinresponsetoenvironmentalpollutantsandparticularlyinthenon-specificimmuneresponsestopathogeninfections.Inthepresentstudy,theexpressionprofilesofHSP70andHSP90genesinhemocytesandhepatopancreasfromtheridgetailwhiteprawnExopalaemoncarinicaudainfectedwithWSSVandVibrioanguillarumweredetectedusingreversetranscriptionpolymerasechainreaction(RT-PCR).AfterWSSVchallenge,theexpressionlevelofHSP70genetranscriptsinthehemocytesandhepatopancreasincreasedtopeaklevelat6hand48h,respectively.HSP90genetranscriptsinhemocytesandhepatopancreaswereup-regulatedsignificantlyat12hand6h,respectively.DuringV.anguillarumchallenge,themRNAcontentofHSP70geneinhemocytesandhepatopancreasincreasedsignificantlyat12hand6hpost-infection,respectively.TheexpressionlevelofHSP90genebothinhemocytesandhepatopancreaswereup-regulatedinthefirst3h.TheexpressionpatternsofHSP70andHSP90genesinhemocytesandhepatopancreasshowedtemporalandspatialdifferencesafterchallengedwithWSSVandV.anguillarum.TheresultssuggestedthatHSPsmightbeinvolvedinimmuneresponsestopathogenschallengeinE.carinicauda.

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：HC-90D型地磁日变站系统的主体是高精度光泵磁力仪.比较详细地介绍了HC-90D型地磁日变站工作原理,阐述了架设日变站的方法和注意事项.

简介：Acomprehensivestrengthmonitoringsystemusedonafixedjacketplatformispresentedinthispaper.Thelong-termmonitoringofW-11-4Aplatformachieved.Structuralresponses(strainandacceleration)atselectedlocations,aswellasassociatedenvironmentalparameters,havebeenobtained.Theemphasisofthepaperisplacedonthesystemdesign,andtheinstrumentationandoperationmethodologyemployedinthemonitoringofthestructuralresponses.Theperformanceofthesystemandthecharacteristicresultsobtainedduringits13-monthoperationarealsosummarized.

简介：Thispaperpresentsthedetaildesignconditions,designcriteriaandmethodsaswellasdesignconclusionsoftheprocess,structureandcorrosionoftheproductionflowlinesandhighpressurewaterinjectionlinesinBZ34-2/4oilfieldinBohaiBay.AtpresentthisdesignrepresentsthedesigncapabilityandlevelinthefieldofthesubmarinepipelineengineeringofChina.

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简介：从7月龄的F1群体随机取样120个体，测量表型性状并进行相关和路径分析。所测量的表型性状包括壳长、壳高、壳宽、壳重和仝湿重共5个指标。结果表明：（1）壳长、壳高、壳宽、壳重和全湿重存在显著的相关性（P〈0．05）。全湿重与壳长、壳高、壳宽和壳重存在显著的正相关（P〈0．05），相关系数分别为0．8970、0．6974、0．6521和0．5486。（2）壳重、壳高、壳宽和壳长对全湿重具有正直接影响，其值分别为0．6356、0．1872、0．1814和0．0599。结果说明了通过直接选择或间接选择可以改良马氏珠母贝选群F1的壳长、壳高、壳宽、壳重和全湿重等生长性状。

简介：从7月龄的F1群体随机取样120个体,测量表型性状并进行相关和路径分析。所测量的表型性状包括壳长、壳高、壳宽、壳重和全湿重共5个指标。结果表明:(1)壳长、壳高、壳宽、壳重和全湿重存在显著的相关性(P<0.05)。全湿重与壳长、壳高、壳宽和壳重存在显著的正相关(P<0.05),相关系数分别为0.8970、0.6974、0.6521和0.5486。(2)壳重、壳高、壳宽和壳长对全湿重具有正直接影响,其值分别为0.6356、0.1872、0.1814和0.0599。结果说明了通过直接选择或间接选择可以改良马氏珠母贝选群F1的壳长、壳高、壳宽、壳重和全湿重等生长性状。