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  • 简介:MomentumDistributionofProductsfromTransferandFragmentationTransferandFragmentation¥WuZhongliThemomentumdistribution...

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  • 简介:Thefoodindustryusesawidevarietyofprocesseswhicharenotwellunderstood.Currentmodellingandmeasurementapproachesarereviewed,withspecificreferencetoworkatBirminghamonParticletracking(PEPT)andthepotentialoftemperaturetimeindicatorsinprocessvalidation.

  • 标签: heat TRANSFER FOOD processing.
  • 简介:TransferofChineseFarmingLabourersAceleratesTheresultsfromarecentstudyshowthatinthepastfiveyears,thetransferofrurallabourersfr...

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  • 简介:AbstractImportance:The process of brain development in children with developmental delay is not well known. Amide proton transfer-weighted (APTw) imaging is a novel molecular magnetic resonance imaging (MRI) technique that can noninvasively detect cytosolic endogenous mobile proteins and peptides involved in the myelination process, and may be useful for providing insights into brain development.Objective:To assess the contribution of amide proton transfer-weighted (APTw) imaging and magnetization transfer (MT) imaging to the evaluation of children with developmental delay (DD).Methods:Fifty-one patients with DD were recruited to this study. The patients were divided into two groups according to the state of myelination assessed on conventional magnetic resonance imaging (MRI). Thirty patients (10 girls, 20 boys; age range: 1-8 months; median age: 4 months) in group A showed delayed myelination on MRI , while 21 patients (3 girls, 18 boys; age range: 12-36months; median age: 25months) in group B showed normal myelination on MRI. Fifty-one age- and sex-matched children with normal developmental quotient (DQ) and normal MRI appearance were recruited as normal controls. Three-slice APTw/MT axial imaging was performed at the level of the centrum semiovale, the basal ganglia and the pons. Quantitative data of the MT ratio (MTR) and APTw were analyzed for multiple brain regions. Independent-sample t-tests were used to compare differences in APTw and MTR signals between the two DD groups and normal controls. Analysis of Covariance was conducted to correct the statistical results. The level of statistical significance was set to P < 0.05.Results:For group A, the MTR values were lower in all regions (P = 0.004-0.033) compared with the normal controls, while the APTw values were higher in the pons, middle cerebellar peduncle, corpus callosum, frontal white matter, occipital white matter and centrum semiovale (P = 0.004-0.040 ). For Group B, the MTR values were slightly reduced, and the APTw values were slightly increased compared with the normal controls, but the differences were not statistically significant (P > 0.05).Interpretation:For DD patients showing signs of delayed myelination on MRI, MTR and APTw imaging can help to diagnose myelination delay by quantifying semi-solid macromolecules and cytosolic endogenous mobile proteins and peptides at a molecular level, providing a new method for comprehensive evaluation of DD. For DD patients with normal myelination on MRI, the clinical values of MTR and APTw imaging remain to be explored.

  • 标签: Children Myelination Developmental delay Amide proton transfer Magnetization transfer
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  • 简介:Allometricscalingrelationsforhowbranchingtubesdeliverfluidareoftenbasedontheassumptionofisothermalconditionswhicharenotalwaysfulfilled.Thisworkreportsonthesizesofbranchingtubesforfluidflowsubjectedtoconstantwallheatflux.Itexploreshowthedeliveryoffluidandheatinfluencestheoptimalsizeofatubeandtheoptimalconfigurationofbranchingtubesforbothlaminarandturbulentflow.Besides,itpresentsananalyticalbasisforevaluationofoptimalsizeoftubesthatminimisethepowerlossassociatedwiththepumpingpowerandtheheattransfer.Thefindingsobtainedinthisstudymayhaveimportantimplicationsfordesignofsystemswithminimumthermodynamiclosses.

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  • 简介:Thenecessitytodistributethedataoverthewideareanetwork(WAN)tothephysicists'homeinstituteswillincrease,andtheeffectiveutilizationofthenetworkbecomescrucial,However,networksinthefutureWANwilltypicallyhavealargebandwidthatanorderofgigabitpersecond,withalatencyofseveralhundredssecondssothatthelargebandwidth-delayprodeuctextendstotensofmegabytesandnumerousproblemsareencountered.suchnetworksarecalled"longfatnetworks(LFNs)"Inordertostudythedatatransferoperatingonalongfatnetwork,wehavebuiltthePCclustersconnectedwiththerouterwhichcansimulatebandwidthlimitations.delays,packetlosses,andmultipatheffects.thisrouterisrunningonFreeBSDwithDUMMYNETkerneloption.Onthesemachineswehavemeasuredtheperformanceofthebulkdatatransfterwithnumerousconditionsandstudiedtheeffecienttransftermethods.

  • 标签: 广域网 数据传输 PC FARM
  • 简介:Modelingofheattransferandsolidificationofcompositerollwasestablishedandusedtopredictthethermalhistoryandsolidificationprocessofrollduringsprayforming.Evolutionoftemperaturefieldofthepreformandcoolingrateinthegrowingdepositduringspraydepositionandpost-depositionwerenumericallysimulated.

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  • 简介:TwomethodsforsmoothingpseudorangeobservablebyCarrierandDopplerarediscussed.ThentheprocedurebasedontheRINEXobservationfilesistestedusingtheAshtechZ-XII3TgeodeticreceiversdrivenbyastableexternalfrequencyatUNSO.Thispaperproposestoadaptthisprocedureforthelinksbetweengeodeticreceivers,inordertotakeadvantageofthePcodesavailableonL1andL2.Thisnewprocedureusesthe30-secondRINEXobservationsfiles,thestandardoftheInternationalGPSService(IGS),andprocessestheionosphere-freecombinationofthecodesP1andP2;thesatellitepositionsarededucedfromtheIGSrapidorbits,availableaftertwodays.

  • 标签: GPS 大地测量 时间序列变换 测地学 滤波观测
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  • 简介:在图象之间的颜色转移有效地使用图象的统计信息。我们在场在图象之间的地方色彩转移的一条新奇途径基于简单统计并且局部地线性的嵌入。一个勾略的接口被建议为快速并且容易指定在目标和来源图象之间的颜色通讯。当顺利保存边界时,用户能用抄写员指定本地区域的通讯,它更精确地把目标颜色转移到来源图象,并且展出更自然的产量结果。我们的算法没被限制为一对一的图象颜色转移并且能使用超过一幅目标图象在来源图象在不同区域转移颜色。而且,我们的算法不要求选择在来源和目标图象之间的一样的颜色风格和图象尺寸。我们建议亚采样减少计算负担。与另外的途径作比较,我们的算法在掺输入数据的颜色是好一些的。我们的途径在来源图象保存另外的颜色细节。各种各样的试验性的结果证明我们的途径在来源和目标图象指定地方色彩区域的通讯。并且它表示用户的意愿并且产生视觉效果的更实际、自然的结果。

  • 标签: 柔韧的颜色相配 渲染风格转移 局部地线性的嵌入 编辑繁殖 亚采样 想象处理
  • 简介:TheALICEdetectoratLHC(CERN),willrecordrawdataatarateof1.2Gigabytespersecond.TryingtoanalyseallthisdataatCRNwillnotbefeasible.AsoriginallyproposedbytheMONARCproject,dtacollectedatCERNwillbetransferredtoremotecentrestousetheircomputinginfrastructure,Theremotecentreswillreconstructandanalysetheevents.andmakeavailabletheresults.Thereforehigh-ratedatatransferbetweencomputingcentres(Tiers)willbecomeofparamountimportance.ThispaperwillpresentseveralteststhathavebeenmadebetweenCERNandremotecentresinPadova(Italy),Torino(Italy),Catania(Italy),Lyon(France),Ohio(UnitedStates),Warsaw(Poland)andCalcutta(India),Thesetestsconsisted,inafirststage,ofsendingrawdatafromCERNtotheremotecentresandback,usingaftpmethodthatallowsconnectionsofseveralstreamsatthesametime.Thankstothesemultiplestreams,itispossilbletoincreasetherateatwhichthedataistransferred.Whileseveral"multiplestreamftpsolutions"alreadyexist,ourmethodisbasedonaparallelsocketimplementationwhichallows,besidesfiles,alsoobjects(oranylargemessage)tobesendinparallel.Aprototypewillbepresentedabletomanagedifferenttransfers.Thisisthefirststepofasystemtobeimplementedthatwillbeabletotakecareoftheconnectionswiththeremotecentrestoexchangedataandmonitorthestatusofthetransfer.

  • 标签: 程序设计 数据传输程序 传输监视
  • 简介:在在一个混合系统的联合分系统之间的精力转移的学习为应用是很重要的。这篇论文在免费横过的颤动论述在一个visco有弹性地连接的双板系统的盘子之间的精力转移的分析分析。在盘子之间的粘弹性的连接为在时间功能的二频率的政体的外观负责的分析分析表演,它对应于一个eigen振幅一个模式工作,并且也,时间不同颤动模式工作,这被解开,但是在在一个eigen模式的盘子之间的精力转移出现。它为颤动的每形状被显示出。相应于一个eigen振幅模式的二个Lyapunov代表的系列被使用相应eigen振幅时间部件的精力表示。

  • 标签: 能量转换 子系统 多频率振动 系统动力学
  • 简介:Thisworkbrieflysummarizedtherecentresearcheffortsmadeonthephaseheattransferprocessesinvolvingbiologicalaggregates,withparticularattentiononthecorrelationofaggregatestructureandstateofwaterwiththeprocessefficiency.Thephasechangeprocessesincludeboiling,drying,freezing,sintering,pyrolysis,andsupercriticalextraction,whiletheformerthreewerediscussedinsomedetail.

  • 标签: PHASE-CHANGE AGGREGATES FRACTAL STRUCTURES BOUND water.
  • 简介:Literateindividualspossessknowledgeandskillandcanapplythesetoperformtasksinnovelsettings.Knowledgeisattheheartofphysicalliteracyandprovidesthefoundationforknowingwhattodoandhowandwhentoperform.InthispaperIarguethatphysicalliteracyincludesnotonlyknowledgeforperformancebutalsotheabilitytoapplyknowledgeanduseknowledgeforinnovation.Scholarssincethe1930shaveaddressedtheroleofknowledgeinphysicalliteracydesigningcurriculacenteredontransmittingknowledgethrougharangeofinterdisciplinaryapproachestophysicaleducation.ThisemphasisonphysicalliteracycurriculacontinuestodayintheScience,PE,&Me!andTheScienceofHealthfulLivinginterdisciplinarycurricula.

  • 标签: 知识转移 课程设计 知识创新 素养 物理 体育教育
  • 简介:抗抑郁剂duloxetine(1)经由3-(dimethylamino)的不对称的转移加氢被准备-1-(thiophen-2-yl)propan-1-one(3)。Ru(II),坚牢酸性蓝RH(III)和红外(III)几chiralligands的建筑群作为催化剂被检验并且(S,S)-N-tosyl-1,2-diphenyl乙烯肼(TsDPEN)Ru(II)建筑群被发现提供好产量和优秀enantioselectivity。

  • 标签: 抗抑郁病药 合成 不对称氢化作用 药物化学