简介：Ananalyticalmodelisdevelopedtostudythesurfaceeffectsonthevibrationbehaviorincludingthenaturalfrequencyandthecriticalflowvelocityoffluid-conveyingnanotubesembeddedinanelasticmedium.TheeffectsofsurfaceelasticityandresidualsurfacestressareaccountedthroughthesurfaceelasticitymodelandtheYoung-Laplaceequation.AWinkler-typefoundationisemployedtomodeltheinteractionofnanotubesandthesurroundingmedium.Theresultsshowthatthesurfaceeffectshavemoreprominentinfluencesonthenaturefrequencywithsmallernanotubethickness,largeraspectratioandlargerelasticmediumconstants.Bothsurfacelayersandtheelasticmediumenhancethestabilityofnanotubes.Thisstudymightbehelpfulfordesigningthefluid-conveyingnanotubedevicesinNEMSandMEMSsystems.

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简介：在多孔的媒介调查传送对流，多孔的媒介从底部加热了的浸透的一液体的水平静止的层数字地用单个lattice-Boltzmann方法(LBM)被学习，概括Navier司烧Nithiarasu等建议的方程。[P。Nithiarasu，K.MSeetharamu，和TSundararajanInt。J。加热集体Trans。40(1997)3955]。由于变成稀薄，边界条件被看作两温度跳并且速度滑倒。计算结果对分析结果被验证，并且优秀同意被获得了。结果证明了瑞利数字与增加温度被增加跳，温度的稳定效果比速度的更重要滑倒，并且现在的模型的计算稳定性比Darcy和Brinkman模型的好。

简介：Therelationbetweengrain-sizedistributionofthebedandinsuspensionwascriticallyexaminedunderauniformflowvelocityof50cm/sovertwobeds:oneofmainlyfinesandsandtheotherofmediumsands.Twosections-one2.85mdownstreamandtheother6.35mdownstreamintheexperimentalchannel-wereselectedforsamplingtostudythegrain-sortingpatternintheverticaldirectionalongthedirectionoftransport.Theshapeandtypeofthegrain-sizedistributionpatternwerecriticallystudiedwithheightabovethebed.Thechangeinthedistributionpatternhasbeenattributedtothechangeoflocalbedroughnesscausingscouringagainsttheprotrudedrelativelycoarsegrainsonthebed.Suchtrendsareimportanttopredictthenatureofriverbedtopography.ThesandofBed-1initiallyexhibitsalog-skew-Laplacedistributionatdifferentheightsofsuspension.Thedistributionpattern,however,changesbutthischangingpatternisnotconsistentalongtheupstreamside.ForBed-2,whichinitiallyexhibitsalog-normaldistribution,thesamepatternpersistsfromtheheightofsuspensionat5cmupto20cm.Suchconsistencyinlog-normalityisalsoobservedatthedownstreampointsofmeasurement.Itisgenerallyexpectedthatthemeangrain-sizewouldreducewithincreasesofsuspensionheightbuttheresultsoftheexperiments,insomeoccasions,differsignificantlyfromthegradualfiningupwardtrend.Thisresulthasbeenattributedtolocalchangesofbedroughnessarisingfromtheprotrudedrelativelycoarsegrainscausingeddies,scouring,andturbulentphenomenawhichmovescoarseparticleshigherinsuspensionaddingacoarsetailtothedistributionincreasingthemeangrain-size.

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简介：ThesolutionsofGreen'sfunctionaresignificantforsimplificationofproblemonatwo-phasesaturatedmedium.UsingtransformationofaxisymmetriccylindricalcoordinateandSommerfeld'sintegral,superpositionoftheinfluencefieldonafreesurface,authorsobtainedthesolutionsofatwo-phasesaturatedmediumsubjectedtoaconcentratedforceonthesemi-space.

简介：ScatteringanddynamicstressconcentrationsoftimeharmonicSH-waveinaninfiniteelasticpiezoelectricmediumwithamovablerigidcylindricalinclusionarestudiedinthispaperwiththehelpofcomplexvariableandwavefunctionexpansionmethod.Therelationsthatamovablerigidcylindricalinclusiondependsonintensityofincidentwaveandelectricfieldarerevealed.Theexpressionsofdynamicstressattheedgeoftheinclusionareobtained.Numericalcalculationsaremadewithdifferentwavenumbersanddifferentpiezoelectriccharacteristicparameters.Thecalculatingresultsshowthatdynamicstressconcentrationsattheedgeoftheinclusionhavelineardependenceontheincidentelectricfield.Anddynamicanalysesareveryimportantforaninfinitepiezoelectricmediumwithamovablerigidcylindricalinclusionatlargerpiezoelectriccharacteristicparameters.

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简介：Fig.1showstheimpactparameter-averagedasymptoticvaluesofthenumberoftheemittedneutronsN_nandthenumberoftheemittedprotonsN_p(whenthevaluesofN_pandN_natt=200fm/cbecomenearlyconstants)i.e.b(topwindow)andb(bottomwindow)asafunctionofthebeamenergywithmomentumdependentintractionforthesystems~(76)Kr+~(40)Ca(leftwindows)and~(76)Kr+~(76)Kr(rightwindows)infivecases:

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简介：Threekindsofhigh-aluminarepairingmixesformedium-frequencyinductionfurnacewerepreparedbyrammingmethodwithsodiumsilicate.phosphoricacidandaluminiumdihydrogenphosphateasbinder.respectively.Physicalpropertiesofthespecimensheattreatedatdifferenttemperaturesweretestedandcompared.Theresultsshowthatthespecimenbondedbysodiumsilicatebehavesmuchhigherstrengthafterfiredat1600℃comparedwiththespecimenbondedbyphosphoricacidoraluminiumdihydrogenphosphate.Duetomoreliquidphaseformation,thepropertiesofspecimenbondedbysodiumsilicatearepoorwithalowstrengthandalargevolumeshrinkageathightemperatures.Meanwhile,thespecimensbondedbyphosphoricacidandaluminiumdihydrogenphosphate,respectively.showrelativelyhighstrengthsandslightvolumeexpansionsathightemperaturesbecauseofin-situmulliteformation.

简介：AbstractBackground:The genetic central dogma (GCD) has been demonstrated its essential function in many biological processes and diseases. However, its roles in the process of osteogenic differentiation of mesenchymal stem cells (MSCs) remain unclear.Methods:In this project, we analyzed an online database of osteogenic differentiation of MSCs after 14 days and 28 days by osteoinductive medium (GSE83770). The differentially expressed genes were screened by GEO2R, with further conducting of KEGG pathways using DAVID. In addition, protein-protein interactions of the enriched pathways were performed using STRING with marked hub genes measured by the CytoHubba. Hub genes were verified by quantitative reverse-transcription polymerase chain reaction.Results:Results showed that six pathways related to GCD, including DNA replication, Aminoacyl-tRNA biosynthesis, Mismatch repair, Ribosome, Spliceosome, and RNA degradation pathways enriched in the early stage (14 days vs. undifferentiated MSCs) of osteogenesis. The Lysosome pathway was highly enriched in the late stage (28 vs. 14 days) of osteogenesis, and Ribosome pathway plays a key role throughout the entire process (28 days vs. undifferentiated MSCs) of osteogenesis.Conclusion:Both DNA replication and protein translation were functionally worked in the early stage of osteogenesis, whereas the Lysosome pathway was the only GCD-related one in the late stage of osteogenesis. The GCD-related Ribosome pathway occupied the entire process of osteogenesis.

简介：热变丑行为二媒介碳超离频有不同的铌内容的力量钢被调查旁边使用的Zener-Hollmom参数和处理地图，和铌的效果中等的碳钢的热变丑行为上的增加被决定。热压缩测试在在温度使变形从的一个Gleeble-3500thermo机械的模拟器上被进行850～1200?景琠敨映畯?瑳条獥愠敲搠獩畣獳摥。

简介：ＣａｒｂｏｎｙｌａｔｉｏｎｏｆＡｌｌｙｌＣｈｌｏｒｉｄｅＣａｔａｌｙｚｅｄｂｙＰｄＣｌ２（ＴＰＰＴＳ）２ｉｎＴｗｏ－ｐｈａｓｅＭｅｄｉｕｍＣａｒｂｏｎｙｌａｔｉｏｎｏｆＡｌｌｙｌＣｈｌｏｒｉｄｅＣａｔａｌｙｚｅｄｂｙＰｄＣｌ２（ＴＰＰＴＳ）２ｉｎ...

简介：Aschemeisdevelopedforanalysingtheinteractionbetweenafoundationandanonlin-earrockandsoilmedium,inwhichthefoundationisconsideredasalinearelasticbodyandatypicalboundaryintegralequationmethod(BIEM)isemployed.(hathebasisoftakingthenonlinearproper-tiesofthemediumintoaccount,aperturbationBIEMisdeveloped.Thefundamentalequationsforthenonlinearcouplinganalysisareformulated,andtypicalproblemsaresolvedanddiscussedbythepre-sentmethod.

简介：Fe:BiOx电影被与在房间温度从80～200W增加劈啪作响的力量在氩空气下面一个BiFeO目标劈啪作响的rf磁控管在K9玻璃底层上制作。在160W的劈啪作响的力量种的薄电影能以适当免职率被形成并且有改进表面形态学，这被发现。XPS结果表明调查的电影由双性人，Fe和O元素组成。一个典型XRD模式证明没有阶段转变发生在这些电影直到400?吗？？

简介：Self-similarsteadynaturalconvectionthermalboundarylayerflowfromarotatingverticalconetoanisotropicDarcianporousmediumisinvestigatedtheoreticallyandnumerically.Thetransformednon-dimensionaltwo-pointboundaryvalueproblemisreducedtoasystemofcoupled,highlynonlinearordinarydifferentialequations,whicharesolvedsubjecttorobustsurfaceandfreestreamboundaryconditionswiththeMAPLE17numericalquadraturesoftware.Validationwithearliernon-rotatingstudiesisincluded,andalsofurtherverificationofrotatingsolutionsisachievedwithavariationalfiniteelementmethod(FEM).Therotational(spin)parameteremergesasaninversefunctionoftheGrashofnumber.Theinfluenceofthisparameter,primaryDarcynumber,secondaryDarcynumberandPrandtlnumberontangentialvelocityandswirlvelocity,temperatureandheattransferratearestudiedindetail.ItisfoundthatthedimensionlesstangentialvelocityincreaseswhilstthedimensionlessswirlvelocityandtemperaturedecreasewiththeswirlDarcynumber,tangentialDarcynumberandtherotationalparameters.Themodelfindsapplicationsinchemicalengineeringfiltrationprocessing,liquidcoatingandspinningconedistillationcolumns.

简介：沿着在中等温度的以铜锌金焊接下面的典型的铝合金的深度方向的表面氧化物电影的进化借助于X光检查光电子光谱学(XPS)被调查。为有在2.0wt%下面的Mg内容的合金，是否在冷滚动状况下面或在中等温度的以铜锌金焊接期间处理，表面上的Mg元素的丰富没被检测，氧化物电影是纯Al2O3。然而，氧化物电影在中等温度的以铜锌金焊接的过程期间显然成长了，并且厚度是大约80nm。为有在2.0wt%上面的Mg内容的合金，在冷滚动状况下面，原来的表面氧化物电影是纯Al2O3。然而，Mg元素显著地在中等温度的以铜锌金焊接期间在最外面的表面上被充实过程，和与MgAl2O4的小数量混合的基于MgO的氧化物电影与大约130nm的厚度被形成。Mn和Si的alloying元素没既不在冷滚动状况下面也不在以铜锌金焊接的mediumtemperature期间在表面上被充实为所有选择的铝合金的过程，和表面氧化物电影几乎类似于纯铝的，它是全部Al2O3。

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