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

简介：腐蚀抵抗无电在钠氯化物答案从12%～14%与磷的内容捏存款被学习。存款沉浸于3.5%NaCl答案让29d获得电气化学的参数；分别地为15d在标准盐水花测试被检验。存款的腐蚀抵抗被potentio动态的扫描学习，电气化学的阻抗光谱学(EIS)，X光检查衍射(XRD)；扫描电子显微镜学(FE-SEM)的冷地的排放与一个精力装备了散X光检查察觉者(EDX)。XRD的模式；FE-SEM的结果证明准备存款是非结晶的。但是在15d标准盐水花测试以后，一些针孔出现在存款的表面上；存款的表面上的磷的重量内容更高(它对钝化电影的形成有益)当因为镍的溶解重量比磷的大，镍内容更低时，比那，在标准盐前，水花测试。从potentio动态的扫描的结果；EIS证明钝化电影在NaCl答案在沉浸以后在Ni-P存款上形成了，它减少了腐蚀率捏样品。这个工作的结果在海洋的腐蚀显示出他们的潜在的应用。

简介：CytochromeP450(CYP)superfamilyisoneofthemembershiplargestandfunctionmostdiverseproteinsuperfamilyrecogniozedamonglivingbeings.Membersofthissuperfamilywerefurtherassignedtodifferentfamiliesandsubfamiliesbasedontheiraminoacidsimilarities.Accordingtotheirphylogeneticrelationships,theCYPgeneswhichlikelydivergedfromcommonancestorgeneandmaysharecommonfunctionsweregroupedintooneclan.Widelydistributingscallopsareagroupofthemostconspicuousbivalve;howeverthestudiesontheirCYPisacarce.Inthisstudy,wesearchedthegenomeandexpressedsequencetagsofZhikongscallop(Chlamysfarreri)forCYPgenes.Intotal,88non-redundantCYPwereidentified,whichwerehomedin13CYPsgenefamilies.Phylogeneticanalysisdividedthesegenesinto4CYPclans.Asindeuterostomes,Clan2wasthelargest,whichcontained33genesbelongingtoCYP1,CYP2,CYP17andCYP356families.Clan3contgained19genesbelongingtoCYP3,CYP5andCYP30families.Clan4contained23genes,allbelongingtoCYP4family.ThemitochondrialCYPclancontained9genesbelongingtoCYP10andCYP24families.Incomparison,protostomes(C.farreri,D.pluex,D.melanogaster)containedmoreCYPgenesthandeuterostomes(S.purpuratusandvertebrates)inClan2butlessgenesinClan3andClan4.OurfindingswillaidtodecipheringCYPfunctionandevolutioninscallopsandbivalves.

简介：Comparedtotowedstreamers,ocean-bottomseismometers(OBS)obtainbothS-wavedataandricherwavefieldinformation.Inthispaper,theinducedpolarizationmethodisusedtoconductwavefieldseparationonOBSdataobtainedfromtheShenhuareaintheSouthChinaSea.AcomparisonofthechangesinP-andS-waves,andacomprehensiveanalysisofgeologicalfactorswithinthearea,enableanalysisanddescriptionoftheoccurrenceofnaturalgashydrateinthestudyarea.ResultsshowanincreaseinP-wavevelocitywhennaturalgashydrateexistsintheformation,whereastheS-wavevelocityremainsalmostconstant,asS-wavescanonlypropagatethroughtherockskeleton.Therefore,thebottom-simulatingreflection(BSR)responseoftheP-waveisbetterthanthatoftheS-waveinthefrequencyanalysisprofile.Inawide-anglesection,therefractivewaveofthehydratelayerisevidentwhenusingP-wavecomponentsbutidentificationisdifficultwithS-wavecomponents.ThisvelocitymodelillustratesthesensitivityofPandS-wavecomponentstogashydrate.TheuseofthispolarizationmethodandresultsofanalysisprovidetechnicalandtheoreticalsupportforresearchonhydratedepositsandothergeologicalfeaturesintheShenhuarea.

简介：首先给出了GPS伪距单点定位的几种主要误差的改正模型：电离层延迟、对流层延迟、地球自转改正、相对论效应改正等，然后采用双频伪距改正电离层延迟影响并利用IGS精密星历，通过算例来分析双频P码伪距单点定位的精度。

简介：在13:46在2011年3月11日(北京时间)，Mw=9.0的地震发生在日本。由从Guanhekou比较海啸数据，有另外的海啸波浪观察的海洋的车站从东南收集了中国的沿海的区域，仅仅在Guanhekou，最大的波浪高度的位置出现在中间的部分而非在海啸波浪火车的前面，是明显的。海啸繁殖的一个数字模型基于2-D，非线性的浅水方程被造学习影响范围和在江苏发现的特殊海啸波形的主要原因沿海的区域。结果将近显示出那江苏沿海的区域的three-quarters，主要光线的沙山脉向北包括了部分，在波浪火车的中间的部分到达了它的最大的海啸波浪高度。特殊波形的主要原因是专辑在水下地形学黄海和华东海区域调节，它显著地影响了海啸繁殖和波形。尽管陆地边界思考在最大值的位置上带了效果，挥动高度到某个程度，作为在观察点和岸之间的事件波形和距离的限制，它不是特殊波形的主导的影响因素。海啸波浪上的Coriolis力量影响是那么弱的它不是为在江苏沿海的区域的特殊现象的主要原因。学习提醒我们最破坏的波浪可能不在海啸波浪火车出现在第一个。

简介：SixactivecompoundsareisolatedfromthemarinebryozoanBugulaneritina,inhabitingtheNanwanBayintheSouthChinaSea,usingthebioassay-guidedmethodwithacombinationofextractionandpartitionationwithsuitablesolventsaswellasmultiplecolumnchromatographies(SephadexLH-20,ODSandpreparativeHPLC).Theirstructuresareidentifiedasknownbryostatins-bryostatins4,5,6,10,11and18throughintensiveanalysisofthedataofhighresolution2DNMR(600MHz,DQF-COSY,TOCSY,HMQCandROESY)andESI-MS.Amongthem,bryostatins10,11and18areforthefirsttimeobtainedfromthisbryozoanintheSouthChinaSeaandtheyshowsignificantantineoplasticactivitiesinvitro.

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：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.