简介:Wettingandspreadingprocesseswhichinvolvesurfactantsolutionsarewidelyusedinnumerousindustrialandpracticalapplicationsnowadays.Theperformanceofdifferentnon-ionicsurfactantsmayvarysignificantlyandsofarsuperspreadersolutionsshowthemostpromisingspreadingability.Theadditionoftrisiloxanesurfactantstowaterwasproventoenhancewetting,evenonhydrophobicsurfaces,onwhichconventionalsurfactantsseemtohavelittleornoeffect.Althoughtheseextraordinarysurfactantshavebeenextensivelystudiedoverrecentyears,completeunderstandingoftheirunderlyingmechanismsandasuitablemathematicalmodelarestilllacking.Herewepresentapossibleexplanationfortheimpressiveperformanceoftrisiloxane,whichiscomparedtowettingenhancementofaconventionalsurfactant.Additionally,wewillexplainwhythehydrophobicityofthesurfaceisacrucialfactorforthespreadingphenomenon.LightwillbealsoshedontheeffectofthepHofthesolutiontowhichsurfactantsareadded.Finally,wewillinvestigatelong-termeffectsofthewaterenvironmentontrisiloxanewettingabilityanddiscussifageingmaysignificantlyaffecttheirperformance.
简介:AbstractChagas disease remains a serious problem for public health due to the high disease burden together with its global spreading patterns. However, current treatment and vector control are highly challenged by drug and insecticide resistance. Chemotherapy and vector control have been proved to be effective attempts to minimize the disease burden. Continued efforts are necessary to keep adapting the surveillance-response systems to the dynamic health systems. More attention and investments are needed to improve appropriate strategy and technology in different settings. This may be accomplished by creating effective risk early warning, addressing vulnerability and building resilience systems, implementing a vector surveillance system, as well as innovating research and technology.
简介:Inthispaper,weproposeasusceptible-infected-susceptible(SIS)modeloncomplexnetworks,small-world(WS)networksandscale-free(SF)networks,tostudytheepidemicspreadingbehaviorwithtimedelaywhichisaddedintotheinfectedphase.Consideringtheuniformdelay,thebasicreproductionnumberR_0onWSnetworksandR_0onSFnetworksareobtainedrespectively.OnWSnetworks,ifR_0≤1,thereisadisease-freeequilibriumanditislocallyasymptoticallystable;ifR_0>1,thereisanepidemicequilibriumanditislocallyasymptoticallystable.OnSFnetworks,ifR_0≤1,thereisadisease-freeequilibrium;ifR_0>1,thereisanepidemicequilibrium.Finally,wecarryoutsimulationstoverifytheconclusionsandanalyzetheeffectofthetimedelayr,theeffectiverateλ,averageconnectivityandtheminimumconnectivitymontheepidemicspreading.
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简介:一个修订实验模型为作为两回答的一个函数预言导致液化的侧面的传播排水量(LD)被开发了光谱从YoudsLD数据从强壮运动的变细模型和geotechnical参数导出的加速设定(Youd网站)。这个修订模型与张和赵的模型不同,它为预言侧面的传播克服了更早的模型的一些缺点并且首先在日本和西方的美国被使用如果摇晃扎根,修订模型能潜在地被使用在任何地方(以5%抑制加速或排水量反应系列)能用本地强壮运动的变细关系被估计。修订模特儿从日本和西方的美国用数据被检查并且适用于土耳其和新西兰,在扎根的摇晃为每个区域用适当强壮运动的变细关系被估计的地方。修订模型的精确性被把它的预言的侧面的排水量与那些在实际地震测量了作比较评估。结果证明修订模型能在侧面的传播排水量上说明本地seismicity的效果并且与存在预言模型一起是可比较的。
简介:为了当上面的部分与某个顺序和亲戚传播了时,与一个漂浮的库模仿multibody系统的动态回答,加速,同类的矩阵方法被采用与一个漂浮的库为一个四身体的系统建模并且模仿,当上面的部分顺序或同时地被散布时,运动被分析。滚动,摇晃并且胀起当multibody系统分别地在与风装载的波浪负担或单个脉搏风负担一起的静态的水的条件下面时,时间的变化被获得。在单个脉搏风负担下面的每个关节的片刻变化是也增加了。数字结果证明漂浮的底摇晃没到上面的部分顺序或同时地传播了的传播时间或形式被影响,当时滚动并且胀起主要取决于传播时间和形式。摇晃并且胀起的运动被吝啬的风负担显著地影响。单个脉搏风负担也在动态回答上有影响。在单身者的关节3和关节4脉搏风环境的转矩可以是两次那在无风的环境当系统与60s传播时持续时间。
简介:Spreadingofnanofluidsonsolidsubstratewasstudiedviamoleculardynamicssimulations.Simulationmodelsfortwoimmisciblefluids(oilandwaterbasednanofluids)confinedinaslitbetweentwoplanarsolidwallsweresetup.Theinfluenceofthevolumeconcentrationofthenanoparticlesonthethree-phasecontactlinemotionwasinvestigated.Wefoundthatthelargervolumeconcentrationresultsinmorevisiblenanoparticleadsorptiononsolidsurface.Thisefectfurtherinducesanadvancingdisplacementofthecontactlinecomparedwiththemeniscusprofilesinlowconcentrationcaseandthatwiththeabsenceofnanoparticles.Thesefindingsareconsistentwiththepreviousexperimentalandtheoreticalresultsandprovidetheatomic-scaleunderstandingonnanofluidspreading.
简介:Thequantumcorrespondenceofoneparticularsignatureofclassicalchaos———theexponentialinstabilityfmotioncanbecharacterizedbytheinitialexponentialgrowthrateofthespreadingwidthofthepropagatingquantumwavepacket.Inaformerstudy~[1]aonetoonecorrespondencehasbeenfoundbetweentheinitial
简介:Withprocessingandinterpretationof25000kmfull-coveragemultibeamswathdatafromtheeasternSouthChinaSea,itisfoundthatNE-trendingandNW-trendinglinearmorphologicalfeaturessuchasscarps,horstsandgrabens,govemthecentralpart(14°~17°N)ofeasternsubbasin.Comparedwithreflectionseismicprofiles,theseNE-trendinglinearmorpho-structuresareconsideredtobetherepresentationofbasementstructuresonseabedandcanbedividedintothreelinearstructuralzones.ThetrendofthecentralzoneisNE45°~50°occurringaroundextinctspreadingcenter,thetrendofthesecondzoneisNE70°~78°onbothsidesofthecentraloneandthetrendofthethirdzoneisaboutNE60°justonthenorthofthesecondone.ThesethreeNE-trendinglinearzonesareformedinlate-stageNW-SE-trendingseafloorspreadingoftheeasternsubbasinalongNW-trendinglinearfaults,andrespectivelycorrespondtothreespreadingepisodes:17.0~19.0Ma(5d-5e),19.0~21.0Ma(5e-6a)and21.0~24.2Ma(6a-6c)basedonthecontrastofmorpho-structurestomagneticlineationanomalies.
简介:Awayofresolvingspreadingcodemismatchesinblindmultiuserdetectionwithaparticleswarmoptimization(PSO)approachisproposed.IthasbeenshownthatthePSOalgorithmincorporatingthelinearsystemofthedecorrelatingdetector,whichistermedasdecorrelatingPSO(DPSO),cansignificantlyimprovethebiterrorrate(BER)andthesystemcapacity.Asthecodemismatchoccurs,theoutputBERperformanceisvulnerabletodegradationforDPSO.Withablinddecorrelatingscheme,theproposedblindDPSO(BDPSO)offersmorerobustcapabilitiesoverexistingDPSOundercodemismatchscenarios.
简介:界面的脱臼可以有相应于的一个传播核心一弱砍接口的抵抗。在这份报纸,一个圆锥形的模型被建议在各向异性的bimaterials模仿界面的脱臼的传播核心。由Stroh形式主义和草地功能,有弹性的地的分析表达式为如此的脱臼被推出。作为一个例子拿Cu/Nbbimaterial,方法的精确性和效率被接口条件很好验证,这被表明,一个传播核心能极大地与紧缩的核心相比在界面的脱臼附近减少压力紧张,并且传播核心区域附近的有弹性的地与压缩核心显著地不同,当他们对是的一个地点不太敏感时,1.5预定核心宽度离开传播核心的中心。
简介:Toestimatethespreadingsequenceofthedirectsequencespreadspectrum(DSSS)signal,afastalgorithmbasedonmaximumlikelihoodfunctionisproposed,andthetheoreticalderivationofthealgorithmisprovided.Bysimplifyingtheobjectivefunctionofmaximumlikelihoodestimation,thealgorithmcanrealizesequencesynchronizationandsequenceestimationviaadaptiveiterationandslidingwindow.Sinceitavoidsthecorrelationmatrixcomputation,thealgorithmsignificantlyreducesthestoragerequirementandthecomputationcomplexity.Simulationsshowthatitisafastconvergentalgorithm,andcanperformwellinlowsignaltonoiseratio(SNR).
简介:目的将观察在浆液嗜曙红血球cationic蛋白质(ECP)上联合传播艾灸和点注射的效果,类脂化合物peroxidase(LPO)和在有咳嗽变体气喘的病人的细胞的免疫。150个盒子全部的方法A满足了包括标准的人,被使随机化进三个组,50在每个组。传播艾灸和点注射在观察组被采用,在点注射组独自在传播艾灸组和点注射独自散布艾灸。然后,治疗学的功效在治疗的一堂功课以后被评估。结果恢复率和全部的有效的率在观察组分别地是50.0%和98.0%,对18.0%和86.0%在传播艾灸组织,14.0%和82.0%在点注射组织,显示出统计上重要的差别(P<0.01)。在治疗前,在ECP,LPO,CD3+,CD4+,CD4+/CD8+和CD8+的层次没有团体之间的统计上重要的差别,强迫的重要能力(FCV),强迫的吐气的体积1(FEV1),并且山峰吐气的流动(PEF)(P<0.05)。在治疗以后,在观察组的ECP和LPO层次是显著地在另外的二个组比那些减少的更多,显示出统计上重要的差别(P<0.01);在观察组的CD3+,CD4+和CD4+/CD8+的层次显著地被提高,但是CD8+显著地被减少,显示出在另外的二个组的与那些相比的统计上重要的差别(P<0.01);并且在观察组的肺功能索引(FVC,FEV1和PEF)是显著地在另外的二个组比那些提高的更多(P<0.05)。结论联合散布艾灸和点注射能显著地与咳嗽变体气喘在病人减少ECP和LPO的内容,改进细胞的免疫,增加CD3+,CD4+和CD4+/CD8+的内容,减少CD8+的内容并且改进肺功能。