简介：这份报纸为为在不同网络系统和大楼结构之间的互相依赖建模描述一个框架。它由描述一个框架为基础结构互相依赖和他们的复杂行为建模并且模仿为内部大楼实用程序的综合分析提供一条途径。支持能使用象提供内部实用程序的地点和说明给一个技术员那样的格，这是想要动一个维护手术的一个基于图的空间模型。这个地点能为维护或代替被需要，或在另一个实用程序网络上组织调查大楼的损坏的结果，或沿着实用程序服务系统在不同地点估计不同维护操作的效果。模型说明二个重要方面：首先，在内部实用程序之间的关系和大楼元素或空格和秒，实用程序联网到的造的层次结构被联系。大楼的一个合适的层次被开发它支持对内部实用程序的面向人的描述的产生，在为象一个方法一样的大大楼元素和空格的分区的一个方法被开发引用一个网络元素到另一座大楼的地方。不同实用程序网络系统和大楼的连接用关节被产生，它基于一种抑制关系。一个例子被举它为支持在维护操作地点和另外的网络系统之间的维护操作，以及独立显示出这条途径的有效性。纸论述数据模型并且与造模型标准的当前的3D解释连接。

简介：ItisanacceptedfactthatthemainsolidphasesupportforpotassiumintheSichuanBasinispolyhalite[K2MgCa2(SO4)4·2H2O]ratherthansylvineis(KCl)(GongDXetal.,2015).Themineraltypes,occurrencecharacteristicsandmetasomatismofthepolyhalitebearingore-bedwereidentifiedandtheoriginofthepolyhalitewasdiscussed.ThepolyhalitesampleswereobtainedfromthecoreofZ12,locatedinDalongVillage,Guang'anCityofcentralSichuan.Thesamplingdepthswere2974m(s-1),3023m(s-2)and3106m(s-3).Themicrobeamanalysisofback-scatteringimageswascarriedoutusingaShimadzuEPMA-1720Serieselectronprobemicro-analyzer,supplementedbyaquantitativespectrumanalysisthatdeterminedthemineraltypes.

简介：Inthisstudy,wedevelopedageneralmethodtoanalyticallytackleakindofmovableboundaryproblemfromtheviewpointofenergyvariation.Havinggroupedtheadhesionofamicro-beam,dropletandcarbonnanotube(CNT)ringonasubstrateintooneframework,weusedthedevelopedlineofreasoningtoinvestigatetheadhesionbehaviorsofthesesystems.Baseduponthederivedgoverningequationsandtransversalityconditions,explicitsolutionsinvolvingthecriticalparametersandmorphologiesforthethreesystemsaresuccessfullyobtained,andthentheparameteranalogiesandcommoncharacteristicsofthemarethoroughlyinvestigated.Thepresentedmethodhasbeenverifiedviatheconceptofenergyreleaserateinfracturemechanics.Ouranalysesprovideanewapproachforexploringthemechanismofdifferentsystemswithsimilaritiesaswellasforunderstandingtheunityofnature.Theanalysisresultsmaybebeneficialforthedesignofnano-structuredmaterials,andholdpotentialforenhancingtheirmechanical,chemical,opticalandelectronicproperties.

简介：Superduplexstainlesssteels(SDSS)showcomplexprecipitationandtransformationbehaviorduringheattreatmentprocesses,whichaffectsbothmechanicalandcorrosionproperties.ThisreportpresentssomedataonthemicrostructuresthatdevelopafterfoldingandsubsequentprecipitationduringheattreatmentofUNSS32750SDSSsheetsamples.ThemicrostructuralandtexturalchangeshavebeenfollowedusingSEM/EBSDtechniques.Uponfolding,bothatextureandstraingradientforminthefolded/bentregion,subsequentheattreatmentat845℃resultsintheferritephasetotransformtosigma,austeniteandchiphases.Transformationwasfoundtobeacceleratedbystrain.Completetransformationoftheferritephaseoccurredwithinhalftheannealingtimerequiredintheunstrainedregions.Thelocalmis-orientationsintheferriteandaustenitephasesreducedduringannealing,however,thereductionintheaustenitewasnotveryhighandasignificantamountremainedevenafterthelongestannealingtime.Thetexturecomponentsthatdevelopedduringthefoldingprocessremainedunchangedevenafteronehourannealingat845℃.TheimplicationofthesefindingscouldhaveabearingontheformationofsigmaphaseduringweldingofSDSSthatmayhaveresidualstressesintroducedduringfinalprocessing.

简介：Themajorobjectiveofthisresearchwastodiscusstheeffectsofloadingrateontheflexural-tensionpropertiesanduniaxialcompressivestrengthofmicro-surfacingmixtureusingthree-pointbendingtestanduniaxialcompressivetestrespectively.Asapreventivemaintenancesurfacetreatmentonasphaltpavement,micro-surfacingwasformedonthebasisoftheISSArecommendationofanoptimummicro-surfacingdesign.Testswereconductedoverawiderangeoftemperaturetoinvestigatethedifferenceofpropertiesfromlowloadingratetoarelativelyhighloadingrate.Three-pointbendingtestwasusedtostudytheflexuralstrength,strainandmodulusofmicro-surfacingmixture,anduniaxialcompressivetestwascarriedouttoobtaintherelationshipbetweenstrengthandtheloadingrateaswellastemperature.Theexperimentalresultsshowedthatflexuralstrengthathighloadingratewaslargerthanthatatlowloadingrate.Theflexuralstrengthdifferencebetweenlowandhighloadingrateenlargedwhenthetemperaturerose.Theflexuralstrainathighloadingrateincreasedcomparedwithresultsofthelowloadingrate.Resultsoftheflexuralmodulusrevealedthatmicro-surfacingmixtureexhibitedbetteranti-crackingcharacteristicatlowtemperaturewhengivenarelativelylowloadingrate.Resultsofuniaxialcompressivetestrevealedthatthestrengthdifferenceofmicro-surfacingamongdifferentloadingratesincreasedwiththeincreaseoftemperature.Thelogarithmrelationshipbetweenthestrengthandloadingrateoverawiderangeoftemperaturewasobtainedtocomparetheexperimentalandpredictedvalues,whichresultinginareasonableconsistency.

简介：题目：悬浮等离子体喷涂过程中微纳米颗粒撞击基板的动力学模拟目的：研究微纳米颗粒在流场中的运动和传热特性，确定颗粒绕流的临界尺寸以及微纳米颗粒合适的喷涂距离。创新点：1．建立微纳米颗粒的受力和运动模型；2．推导颗粒粒径和斯托克斯数的关系，确定颗粒绕流的临界尺寸；3．确定适于微纳米颗粒的喷涂距离。方法：1．通过颗粒运动和传热的三维模型，模拟颗粒在等离子体流场中的运动和传热过程；2．对流场采用欧拉法进行求解，对颗粒采用拉格朗日法进行求解；3．动态追踪颗粒的轨迹和空间分布，从而得到颗粒的速度、温度和空间分布。结论：1．布朗力会影响纳米颗粒的分布；现有模型可以很好地模拟微纳米颗粒的行为。2．可以用斯托克斯数和粒径表征微纳米颗粒绕流的临界尺寸；当前工况下，临界粒径约为800nm。3．基板会影响流场结构和颗粒的空间分布；在当前研究中，得出有利于纳米颗粒沉积的喷涂距离约为50mm；对微米颗粒来说，喷涂距离应适当增大。4．微纳米颗粒的空间分布呈现不同的特点；纳米颗粒的分布区间更大，布朗力对纳米颗粒的作用比对微米颗粒更为显著。5．微纳米颗粒的运动和传热过程呈现不同的特点；纳米颗粒的惯性和热容小，因此它们的速度和温度变化更迅速。

简介：Ahumanfacewithcomplex3Dstructureismachinedwithamodifiedfix-lengthcompensationmethodinthispaper.ThefastdevelopmentofMEMS(MicroElectromechanicalSystems)hasstronglyenhancedtheapplicationofnewharderworkmaterials.Asalowcost,flexible,goodrepeatablemachiningprocesswithnegligibleprocessforces,micro-EDMmillingiswellsuitedforfreeformmetallicmicrostructures.Amajorprobleminmicro-EDMmillingofcomplex3Dstructureistheelectrodewear.AnewCAMsystembasedontheUGsoftwareplatformisdevelopedinordertogetgoodaccuracyandhigherefficiency.Acorrectioncoefficientisintroducedanddeducedforthemodifiedfix-lengthcompensationmethod.Usingthismethodahumanfacewithcomplex3Dstricterismachinedsuccessfullybymicro-EDMmilling.

简介：Byanoveltechnique-cathodicmicro-arcelectro-deposition(CMED),ZrO2coatingsweredepositedonanFeCrAlalloy.ExperimentalresultsshowthatthenecessaryconditionsforobtainingZrO2coatingsaretoapplyapulsepeakvoltageoveracriticalvalueandaddmoderateamountsofZrO2colloidalparticlesandZr(NO3)4intheequeoussolution.Theas-depositedcoatingsareporousbecausehydrogen,water,andothervaporsaregeneratedandreleasedfromthecoatingstothesolutionduringthesparkreaction.ThecoatingscontainmonoclinicandtetragonalcrystallineZrOwithcertaindegreeofamorphousstructure.TheprocessingparametersandmechanismofCMEDwerediscussed.

简介：GaNmicrocrystallinegrainsweregrownbyhot-wallchemicalvapordepositiononSi(111)substrate.Thesegrainswithdiametersof2-4μmweredetectedbyscanningelectronmicroscopy.X-raydiffraction,Fouriertransformationinfraredtransmissionspectroscopyandphotoluminescencewereusedtoanalyzethestructure,compositionandtheopticalpropertiesofthesamples.TheresultsshowthatthemicrocrystallinegrainsarehexagonalwurtziteGaN,andthepropertyofthegrainswasgreatlyaffectedbythegrowthtime.

简介：Room-temperatureterahertz（THz）detectorsindicateagreatpotentialintheimagingapplicationbecauseoftheirreal-time,compactbulk,andwidespectralbandrespondingcharacteristics.THzdetectorswithdifferentdimensionsbasedonamicro-bridgestructurehavebeendesignedandfabricatedtogetoptimizedmicro-bolometerparametersfromthetestresultsofmembranedeformation.Ananostructuredtitanium（Ti）thinfilmabsorberisintegratedinthemicro-bridgestructureoftheVOxmicro-bolometerbyacombinedprocessofmagnetronsputteringandreactiveionetching（RIE）,anditsimprovementofTHzabsorptionisverifiedbyanopticalcharacteristicsmesurement.Continuous-waveTHzdetectionandimagingaredemonstratedbyusinga2.52THzfarinfraredCO2laseranda320×240vanadiumoxidemicro-bolometerfocalplanearraywithanoptimizedcellstructure.Withthisdetectingsystem,THzimagingofmetalconcealedinawipingclothandanenvelopeisdemonstrated,respectively.

简介：Datacollectedusingthemicrorainradar(MRR)situatedinJinancity,easternChina,wereusedtoexplorethealtitudinalandtemporalevolutionofrainfallmicrophysicalcharacteristics,andtoanalyzethebrightband(BB)characteristicsandhydrometeorclassification.Specifically,alow-intensityandstablestratiformprecipitationeventthatoccurredfrom0000to0550UTC15February2015andfeaturedaBBwasstudied.Duringthisevent,therainfallintensitywaslessthan2mmh-1ataheightof300m,whichwasabovetheradarsitelevel,sotheerrorscausedbytheverticalairmotioncouldbeignored.ThefreezingheightfromtheradiosondematchedwellwiththetopoftheBBobservedbytheMRR.Itwasalsofoundthatthenumberof0.5–1mmdiameterdropsshowednonoticeablevariationbelowtheBB.Themaximumfallvelocityandthemaximumgradientfallvelocity(GFV)oftheraindropsappearedatthebottomoftheBB.Meanwhile,amethodthatusestheGFVandreflectivitytoidentifythealtitudeandthethicknessoftheBBwasestablished,withwhichtheMRRcanprovideareliableandreal-timeestimationofthe0?Cisotherm.ThedropletfallvelocitywasusedtoclassifythetypesofsnowcrystalsabovetheBB.Inthefirst20minoftheselectedprecipitationevent,graupelprevailedabovetheBB;andatanaltitudeof2000m,graupelalsodominatedinthefirst250min.After150min,theexistenceofgraupelanddendriticcrystalswithwaterdropletsabovetheBBwasinferred.

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简介：Electricalpropertyofamicro-plasmaspraysystemwithdifferentworking-gasfeedingschemeswastestedtooptimizetheplasmasprayprocess.Thearcvoltagewithanintegratedgasinjectionmodeishigherthanthatwithradialinjectionoraxialinjectionmodes.Thus,anintegratedgasinjectionmodewithanexcellentelectricalcharacteristicwasadoptedtodepositalumina-titaniacoating.Themicrostructure,bondingstrengthandhardnessoftheplasmasprayedalumina-titaniacoating,asafunctionofthesprayingparameters,e.g.,plasmacurrent,gasflowrateandgaspressure,werestudied.Itwasshownthatthesprayingparametersaffectedremarkablyontheinicrostructureofthecoating.Differenttendenciesinbondingstrengthandhardnesswerealsoshownfordifferentsprayingparameters.Atanarccurrentof250A,agasflowrateof20L/rninandagaspressureof0.5MPa,thebondingstrengthandmicro-hardnessofthecoatingsreach40.6MPaandHV1406.1,respectively.

简介：The4thGeneralConferenceofInternationalMicroSimulationAssociationwasheldfrom11to14December2013inCanberra,Australia.Dr.ZhangXuyingandDr.HuangKuangshi,researchersfromChinaPopulationandDevelopmentResearchCenter(CPDRC)attendedtheconferenceanddeliveredareportentitledPADISMicro-simulationModel

简介：钛氧化物涂层被微弧的氧化(毛)在Ti-2Al-2.5Zr合金底层上综合技术。涂层的表面特征被扫描电子显微镜学学习。当分泌物隧道尺寸随对待时间的增加清楚地增加时，Ti-2Al-2.5Zr合金的微弧的分泌物隧道减少。随涂层厚度的增加，多孔的层厚度显然增加。涂层的表面层的阶段作文被X光检查衍射和X光检查光电子光谱学评估。XRD和XPS分析的结果证明毛涂层主要由锐钛矿和金红石TiO2组成。

简介：加州米尔皮塔斯2008年6月30日电／新华美通／-CaliforniaMicroDevices（Nasdaq：CAMD）（简称“CMD”）今天宣布推出其用于手机的第三代PraetorianⅢLC滤波器架构。PraetorianⅢ产品为滤波器性能树立了新的基准，以较PraetorianⅠ产品更低的成本（相当于最近推出的PraetorianⅡ系列产品的成本）提供了更高的性能。基于创新的耦合电感设计，CMD的PraetorianⅢ架构提供感应水平较高以及电容水平较低的滤波器。这使得滤波器设计可提供较同类竞争产品更高的衰减水平以及更高的信号完整性。

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简介：摘要：文章以“篮球计数器”作品的设计和制作为例，详细介绍了项目提出的背景以及项目的具体实施过程，从而为基于 Micro:bit开源板的大班额普惠式创客教育项目的开展引出了框架，保证了大班额普惠式创客教育较好的课堂的效果。