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简介：Wehavecarriedoutanexperimentalstudyofliquiddropimpactonsuperhydrophobicsubstratescoveredbyacarpetofchemicallycoatednano-wires.Themicro-structureofthesurfaceissimilartosomebiologicalones(Lotusleafforexample).Inthissituationthecontactanglecanthenbeconsideredasequalto180degrees,withnohysteresis.Duetoitsinitialinertia,thedropexperiencesaflatteningphaseafterithitsthesurface,takingtheshapeofapancake.Onceitreachesitsmaximallateralextension,thedropbeginstoretractandbouncesback.Wehaveextractedthelateralextensionofthedrop,andweproposeamodelthatexplainsthetrend.Wefindalimitinitialvelocitybeyondwhichthedropprotrudesintothenano-wirecarpet.Wediscusstherelevanceofpracticalissuesintermsofself-cleaningsurfacesorspray-cooling.

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简介：摘要：在公司国际化战略实施过程中，钻井平台与国际知名油公司合作，面临甲方苛刻专业的验船细则考验，而在验船诸多项目中，DROPS检验由专业的第三方检测机构进行。本文以2021年某平台在国际化作业中首次接受第三方DROPS检验机构检验报告分析为例，结合DROPS行业导则相关要求及现场实际管理难点、解决方法，探讨钻井平台在接船初期及国内适应性改造初期DORPS管理提升对策，为后续类似自升式钻井平台出国作业DROPS安全管理提升提供一定参考。

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简介：Manystudieshaveinvestigatedevaporationofsessiledropsinanattempttounderstandtheeffectofwettingontheevaporationprocess.Recentlyinteresthasalsoincreasedinthedepositionofparticlesfromsuchdrops,withevaporativemassfluxbeingdeemedtoberesponsibleforring-likedeposits,andcounteractionofthemassfluxbyMarangoniconvectionexplainingmoreuniformdepositionpatterns.Understandingofsuchdepositionprocessesisimportantinbiologicalapplications,suchastheLitostest-systemendorsedbytheRussianMinistryofHealthfordiagnosisofurolithiasisandtheevaporationofcolloidaldropsfordepositingandorganizingproteinsandDNA.Inmostcaseswheredepositionfromevaporatingdropshasbeenstudied,velocityinformationisinferredfromthefinaldepositionpatternorfrommathematicalmodelingbasedonsimplifiedmodelsofthephysicsoftheevaporationprocess.Inthisstudywehavedirectlymeasuredtheflowvelocitiesinthebaseofsessiledrops,usingmicroparticleimagevelocimetry,viewingthedropfrombelow,throughthecoverslide.Forwaterdrops,aradialpatternofflowwasobservedwithamaximumvelocityclosetobutnotatthepinnedouteredge.For‘azeotropic’ethanol/watermixtures,thevelocityfieldismorechaotictobeginwith,passingthroughaphaseinvolvingthreeorfourrecirculationcellsandfinallyhavingthesameradialpatternasforwaterdrops.

简介：BasedonthedigitalwaveformdatarecordedbyXinjiangDigitalSeismicNetworkfortheXinyuan-HejingM_L6.8earthquakesequencesofJune30,2012,thispaperanalyzesthestressdropsofearthquakesequencesandthecorrelationcoefficientsoffocalmechanismssignificantforstrongaftershocks.Firstly,thesourceparametersoftheXinyuan-HejingM_L6.8earthquakesequencesareobtainedbyapplyingthespectrumanalysisandtheBrunessourcemodel.Then,thecorrelationcoefficientsofspectralamplitudesarecalculatedusingthelow-frequencyspectralamplituderecordedbythesamestationforthedifferentevents.Finally,basedontheresultsofthecorrelationcoefficientsofspectralamplitudes,theeventswithsimilarfocalmechanismsaregroupedusingtheclusteringmethod.Theresultsshowthat:(1)Thestressdropvaluesshowasteadytrendintheaftershocksequencecalmperiodandthestressdropvaluesshowarise-fallinstrongaftershocks.(2)Themovingaveragecorrelationcoefficientofamplitudespectrumbeginstospreadafterthemainshock.Itshowsthatthecorrelationdecreasesbetweenthemainshockandtheaftershocksinmechanisms.(3)Theresultsoffocalmechanismgroupsshowthattheearthquakesequencesaremainlystrikeslips.ThestressdistributionofthemainpressureaxisisnearlyNS,whichisthesameasthestructuralstressfield.(4)Themagnitudeandmechanismshowthatthereisanagreementbeforethestrongaftershock,whichshowsthattheregionalstressfieldisenhanced.

简介：AIMTo比较fluorometholone的联合0.1%并且0.5%在控制发炎并且与intraocular透镜implantation.METHODSSixty在phacoemulsification以后阻止感染掉到tobramycin/dexamethasone眼睛的levofloxacin从60看经历奔流phacoemulsification的病人被使随机化进二个组；病人的一半与与levofloxacin(4times/d)相结合的fluorometholone(6times/d)被对待，当另外的一半与眼睛掉一个星期的tobramycin/dexamethasone(4times/d)被对待时。在操作和1wk追随者treatments.RESULTSThere不是在角膜的厚度(P0.629)的二个组之间的统计上重要的差别以前，外科手术前、手术后的intraocular压力，水的闪光，角膜的厚度，和症状被记录，水的闪光(P0.398)，并且症状分数(P0.350)在每次指。眼睛的高血压仅仅在与levofloxacin治疗表演相结合的tobramycin/dexamethasonegroup.CONCLUSIONFluorometholone在二只眼睛被观察可比较的功效但是没有增加intraocular压力的趋势；因此，它可能是为手术后的使用的更好的政体。