简介：在现在的学习，为129碘(129我)在铁锰合金，外壳被开发并且129iodine/127碘(129I/127我)在铁锰合金外壳中的比率被加速器团spectrometry(AMS)测量。发达方法被使用分析129I/127我在从中间和平的海洋收集的二铁锰合金外壳MP5D44和CXD08-1的比率。结果显示出那129I/127我在MP5D44和CXD08-1外壳中的比率从7湩敧变化吗？？

简介：-BasedontheextendedMorisonEquationandmodeltests,thein-lineforcesonsmallsquarecylinderscausedbywaves(regularandirregular)andcurrentsareanalyzedindetailinthispaper.ThehydrodynamiccoefficientCDandCurelatedtoKCnumberandtheeffectofdirectionofwaveincidencearealsogiven,whichcanbeusedinengineeringpractice.

简介：

简介：AbriefreviewismadeonthetheoryoftheLagrangianresidualcirculationandinter-tidaltransportsinaconvectivelyweaklynonlinearsystem.Inthereviewtheemphasisisputonthesystematicaldevelopmentofthetheoryanditsweaknessofconvectivelyweaklynonlinearapproximation.ThefundamentalsofaLagrangiantidally-averagedtheoryoncirculationwithinter-tidaltransportprocesseshavebeenproposedforageneralnonlinearcoastal/estuarinesystem.TheLagrangianresidualvelocityisstrictlydefined,andithasbeenverifiedtobeabletoembodythevelocityfieldofcirculation.Anewconceptoftheconcentrationforinter-tidaltransportprocessesispresented.Theconcentrationdescribingtheinter-tidaltransportprocessesshouldbea'Lagrangianinter-tidalconcentration'definedandnamed,butnottheEuleriantidally-averagedconcentrationusedtraditionally.Thecirculationdescribedherecontainsasetofinfinitetemporal-spatialfieldsofvelocity/concentration,eachofwhichcorrespondstoaspecificvalueoftidalphasesvaryingcontinuouslyoveronetidalcycle.Whentheconvectivelyweaklynonlinearcondition(withasmallerorderofeddydiffusionandsources)isapproximatelysatisfied,asetofinfinitetemporal-spatialfieldsofvelocity/concentrationcanbereducedtoasingleone:themasstransportvelocity/theEuleriantidallyaveragedconcentrationasexhibitedtraditionally.

简介：海水热力学的二个重要非线性的性质连接了到水密度，cabbeling和弹性(压缩的可能性)的变化，被讨论。埃迪散开和移流在密度导致变化；作为结果，系统的重力的势能被改变。因此，cabbeling和弹性玩在侧面的旋涡散开和移流的energetics给角色调音。垂直旋涡散开是处于全球海洋的机械精力平衡的关键元素之一。垂直旋涡散开能概念上被分开成二步：激动人心并且subscale散开。垂直旋涡向上、温暖/轻的激动人心的推冷/稠密水向下流水；因此，重力的势能被增加。在第二步期间，来自不同地方的水群众通过subscale混合散开，和水密度由于cabbeling被增加。使用WOA01气候学并且假定垂直旋涡扩散性等于2慭楲敮瀠慨潥桰瑹獥?有洠牡湩?桲摯灯票整?ㄠ?挠汨牯灯票整?的经常的价值?挠祲瑰灯票整??栠灡潴桰瑹獥?湡?‵汧畡潣桰瑹獥眠牥?敳畱湥散?眠?獵摥愠朠湥?湡污獹獩洠瑥潨?潴愠慮祬敺琠敨倠?朠湥?敳畱湥散?湩愠杬敡愠摮挠湯楦浲琠敨攠楸瑳湥散漠?桴???敧敮椠?桴?牴湡'諛L瑰浯捩猠煥敵据湩?慤慴漠?桒摯灯票慴愠摮传档潲桰瑹吗？

简介：Toobtainthemaximumangiotensin-Iconvertingenzyme(ACE)inhibitoryactivity,theproteinhydrolysisconditionsofthejellyfishRhopilemahispidumwereoptimizedusingresponsesurfacemethodology(RSM).TrypsinwasselectedtoproduceR.hispidumproteinhydrolysates(RPH)withACEinhibitoryactivity.TheoptimalparametersforproducingproteinhydrolysateswiththehighestACEinhibitoryactivitywereasfollows:hydrolysistime5h,hydrolysistemperature50℃,andtheenzyme-to-substrateratio6%.Undertheseconditions,theACEinhibitoryrateofRPHcouldreach64.28%±5.72%.Inaddition,RPHcontainedhighlevelsofGly,Glu,Pro,Ala,AspandArg,withamolecularweightdistributionrangeof0.32–6.84kDa.ThefollowingthreenovelACEinhibitorypeptideswereisolatedandidentified:Ile-Gly-Glu-Thr-Gly-Pro,Gly-Ala-Thr-Gly-Pro-Ala-Gly-Tyr-ValandGly-Ala-Phe-Gly-Pro-Gly-Gly-Leu-Val-Gly-Arg-Pro.TheIC50valuesoftheACEinhibitoryactivityofthesethreepurifiedpeptideswere19.07,27.42and31.26μmolL^-1,respectively.TheseresultssuggestedthatproteinsandpeptidesisolatedfromR.hispidumcouldbeutilizedasantihypertensivefunctionalfoodsources.

简介：Inthisstudy,threecDNAsequencescorrespondingtocytochromeP450C17(CYP17I),3β-hydroxysteroiddehydrogenase(3β-HSD)andandrogenreceptor(AR)wereisolatedfromspottedseabass(Lateolabraxmaculatus).ThemRNAabundancesofCYP17Iand3β-HSDincreasedfromstageⅡtostageⅤwithasignificantincreaseatstageⅤ,andthehighestabundanceofARmRNAwasdetectedatstageⅢintesticulardevelopmentcycle.CYP17I,3β-HSDandARtranscriptswereobviouslyabundantinsteroidogenesistissuessuchastestis,brain,headkidneyamongothers.StrongandpositivesignalswereobservedmainlyininterstitialcellregionsofL.maculatustestisasweremeasuredwithinsituhybridizationmethod.SignificantincreasesofCYP17Iand3β-HSDtranscriptsweredetectedafter12–48hhCG(humanchorionicgonadotropin)andGnRHa(gonadotropin-releasinghormoneanalogue)treatments.However,anoppositerelationshipwasfoundforARintestisatthesametime.Inaddition,decreasingtrendsofCYP17Iand3β-HSDmRNAwereobservedintestisofL.maculatusinfreshwatergroup(FW)fromday2today6,andmRNAabundanceofARincreasedinbrackishwater(BW)groupfromday4today8.Thesefindingsrevealedthatthesethreesteroidsynthesisgenesareimportfortesticulardevelopment,hormoneandsalinitytreatment,andprovidedalsoaninsightintothemechanismofreproductiveendocrineofL.maculatus.

简介：Dongsha区域是为在华南海(SCS)的煤气的水合物探索的最有希望的目标区域之一。毛孔水地球化学的学习在中国煤气的水合物探索起了一个关键作用。Br/Cl，I/Cl和37毛孔水里的Cl在在低温度沉积环境跟踪煤气的水合物出现，毛孔液体的化学进化和水/岩石相互作用这里被使用。样品在2004在Dongsha区域从地点HD255PC和HD309PC被收集。在地点HD255PC，我们发现了提高的Br/Cl，I/Cl并且那么减少了在4-5m的深度的4/Cl，可能从煤气的水合物出现产生的旁边地移植的液体暗示。37Clis-0.54到+0.96，和积极37在4-5m间隔的Cl应该与在35Cl和37Cl。在地点HD309PC，旁边地移植的液体也在3-4m的深度被发现，与Br/Cltwotimes到，显示海水和减少的I/Cl，液体没有与煤气的水合物的关系。在这个地点，氯同位素的作文改变from-0.7到+1.9。额外的高Br/Cl可能与深产生的液体联系。在更高的温度和压力，液体的Br/Cl在含水的硅酸盐形成期间被提高，当时积极37Cl也与一样的机制被联系。

简介：用SDS-PAGE技术研究了不同时期条斑紫菜样品、高温下培养的丝状体以及不同季节收获的叶状体的总可溶性蛋白。结果表明,这些样品总可溶性蛋白的表达数量和种类相差很大。壳孢子中总可溶性蛋白的表达数量和种类明显比丝状体中多,但比膨大丝状体中少;高温条件下培养的丝状体比正常条件下培养的丝状体表达更多数量和种类的可溶性蛋白;所有样品中,以叶状体表达的溶性蛋白的表达数量和种类最多;上年收获的与本年度不同季节收获的叶状体在蛋白质表达图谱上差别很小。

简介：用SDS-PAGE技术研究了不同时期条斑紫菜样品、高温下培养的丝状体以及不同季节收获的叶状体的总可溶性蛋白。结果表明,这些样品总可溶性蛋白的表达数量和种类相差很大。壳孢子中总可溶性蛋白的表达数量和种类明显比丝状体中多,但比膨大丝状体中少;高温条件下培养的丝状体比正常条件下培养的丝状体表达更多数量和种类的可溶性蛋白;所有样品中,以叶状体表达的溶性蛋白的表达数量和种类最多;上年收获的与本年度不同季节收获的叶状体在蛋白质表达图谱上差别很小。更多还原

简介：本实验探讨了盐度波动（S0和S10）和蛋白质/碳水化合物比值（P/C：4.1、1.9、1.0和0.6）对凡纳滨对虾存活和生长的影响。实验周期35天。结果表明：I）随着饲料中P/C比值的降低,对虾特定生长率和吸收效率呈下降趋势,而饲料系数呈上升趋势。在盐度波动S0处理中,4.1P/C比值饲料组对虾的摄食量和特定生长率显著高于1.0和0.6P/C比值饲料组;而在盐度波动S10处理中,各P/C比值饲料处理组差异不显著。II）4.1和1.9P/C比值饲料处理组中,S0盐度波动处理组对虾的摄食量和特定生长率高于S10盐度波动处理组;而1.0和0.6P/C比值饲料处理组中,S0盐度波动处理组对虾的摄食量和特定生长率低于S10盐度波动处理组的对虾。对于4个P/C比值处理组,S0盐度波动处理组的对虾饲料系数最低。