学科分类
/ 25
500 个结果
  • 简介:AIMTo在划分的类型2糖尿病的patients.METHODSWe估计在choroidal厚度(CT)和糖尿病的retinopathy(医生)的早阶段之间的关联83个糖尿病的病人(51-80岁;50女性)进非糖尿病的retinopathy,组(NDR)和温和/中等的nonproliferative糖尿病患者retinopathy(NPDR)组织,并且把他们与26个非糖尿病的控制题目作比较(51-78岁;16女性)。Subfovealchoroidal厚度(SFCT)和parafovealchoroidal厚度(PFCT)用提高的深度成像被测量光谱域的光连贯断层摄影术(EDI10月)。眼睛的健康地位,疾病持续时间,身体团索引,和血红素A1c(HbA1c)是NDR,NPDR,和控制组的recorded.RESULTSThe平均数年龄68.0是戠牥晥?景吗?

  • 标签: choroidal 厚度 糖尿病的 choroidopathy 糖尿病的 retinopathy
  • 简介:p类型(100)上的HfO2电影的乐队排列磁控管劈啪作响种的InP底层被调查。化学状态和系统的结合的特征被X光检查光电子光谱学(XPS)描绘。结果证明没有Hf-P或Hf在里面的存在,有在2在接口的O3和InPO4。紫外分光光度计(UVS)被采用获得HfO2的乐队差距价值。在3d和Hf4f,核心级的系列和原子价系列被采用获得HfO2/InP的原子价乐队偏移量。试验性的结果出现(5.88??T

  • 标签: HFO2薄膜 INP衬底 排列 能带 p型 X射线光电子能谱
  • 简介:虽然重回F1赛场的本田并没有达到应有的成绩,但这丝毫不影响"本田技研社"研发"黑科技"的能力,新一代思域TYPER更是将"本田大法好"的理念推向了极致。新车的设计综合了现款思域TYPER与第十代思域两厢版的特点进行研发,前进气格栅上招牌式的红底本田车标+TYPER的标识自然是"本田粉"心目中的图腾,而普通版思域上备受好评的全LED大灯也得以延续。

  • 标签: 思域 TYPE R 进气格栅 招牌式 雾灯
  • 简介:DearEditor,IamSatoruKase,fromtheDepartmentofOphthalmology,FacultyofMedicineandGraduateSchoolofMedicine,HokkaidoUniversity,SapporoCity,Japan.Iwritetopresentacaseofneurofibromatosistype1(NF1)showingmassivehemorrhageduringinvolutionalblepharoptosissurgery.

  • 标签:
  • 简介:这款车是一辆全自动车,捷豹的客户可以按需叫车,这是一辆应对电动、共享、互联的未来而设计的汽车.它最特别的地方,是它的智能互联方向盘.它可以放置在你的家中,成为你最忠实的伙伴.Sayer是第一款用语音启动的人工智能方向盘,它可以执行多项任务,这是以E-type设计者的名字来命名的.它可以用来叫车、播放音乐、餐厅定位,它甚至可以知道你的冰箱里有什么.你可以加入提供按需叫车服务的俱乐部,一旦成为了它的成员,可以独享一辆车,也可以与同一社区的他人分享一辆车,而且用户并不需要把车停在家里,只要把方向盘放在家里就可以了.

  • 标签: 捷豹概念车
  • 简介:ThepaperdealswiththestronglydampednonlinearwaveequationofKirchhofftype.Theexistenceofaglobalattractorisprovenbyusingthedecomposition,andmoreover,thestructureoftheglobalattractorisestablished.Ourresultsimprovethepreviousresults.

  • 标签:
  • 简介:一个向轴的方向的大偏转有一张矩形的剖面图的可扩展的弄弯的横梁被调查。有弹性的横梁被假定满足Euler-Bernoulli假定并且用Ludwick类型材料做的。通过相当简化的集成,横梁的轴的紧张和弯曲在含蓄的明确的表达被介绍。包含的管理方程几何并且弄弯的横梁的材料非线性被射击方法导出并且解决。当横梁的起始的弯曲是零时,弄弯的横梁被堕落进一根直横梁,并且现在的模型获得的预言的结果与在开的文学的那些一致。数字例子进一步为弄弯的伸臂被给并且简单地支持在延伸之间的横梁,和couplings并且弯曲被作出对有利的裁决弄弯的横梁。

  • 标签: 大偏转 弄弯的横梁 Ludwick 类型材料 非线性 O343.5 74B20
  • 简介:Inthiswork,thewettability,agingandshearpropertiesofanewtypeoflead-freesolderpasteSn-07Ag-05Cu+BiNi(SACBN07)wasinvestigatedbyconductingaseriesofcomparisonexperimentswithSAC305andSAC0307solderpaste.TheresultsshowthatwettabilityofSACBN07isalmostequaltoSAC305,andbetterthanthatofSAC0307solderpaste.Thethicknessofintermetalliccompound(IMC)layerinSACBN07/Cuislowerthanthatofothertwotypesofsolderjointafteraging.AndCu_3SnlayerofSACBN07/CuisthinnerthanthatofSAC305andSAC0307.Inaddition,theSACBN07solderjointsperformthebestshearstrengthamongthesethreetypesofsolderpastes.

  • 标签: 无铅焊膏 特性 金属间化合物 比较实验 剪切性能 抗剪强度
  • 简介:Thegeneralizedautoregressiveconditionalheteroskedasticity(GARCH)typemodelsareusedtoinvestigatethevolatilityofBangladeshstockmarket.Thefindingsofthestudydemonstratethattheindexvolatilitycharacteristicschangesovertime.Thearticleshowsthatthedataaredividedintothreesub-periods:precrisis,crisis,andpostcrisis.Accordingly,theresultsofthefindingsindicatechangesintheGARCH-typemodelsparameter,riskpremiumandpersistenceofvolatilityindifferentperiods.Asignificant'low-yieldassociatedwithhigh-risk'phenomenonisdetectedinthecrisisperiodandthe'leverageeffect'occursineachperiods.Theinvestorsareirrationalwhichisbasedonassumptionofriskandreturncharacteristicsofassets.Consequently,themarketisnotasmatureasdevelopedmarket.Itisfoundinthearticlethatthethresholdgeneralizedautoregressiveconditionalheteroskedasticity(TGARCH)modelismoreaccurateforthemodelaccuracy.Additionally,statisticerrormeasurementsindicatethatGARCHmodelismoreefficientthanothersandithasalsomoreforecastingability.

  • 标签:
  • 简介:vinylogous-silyloxy-cyclobutanone的不平常的正式oxy调换1(1,5-difunctionalized底层)在温和酸的条件下面(在CH3在0点的CN??????

  • 标签: 环丁酮 内酯 破碎 CH3CN
  • 简介:ThisworkstudiesTedopingeffectsonthedirectbandgapphotoluminescence(PL)ofindirectGaxIn1-xPalloys(0.72≤x≤0.74).Thetemperature-dependentPLshowsthattheenergydifferencebetweendirectΓvalleyandindirectXvalleysisreducedduetothebandgapnarrowing(BGN)effect,andthedirectbandtransitiongraduallydominatesthePLspectraastemperatureincreases.CarrierthermalizationhasbeenobservedforTe-dopedGaxIn1-xPsamples,asintegratedPLintensityincreaseswithincreasingtemperaturefrom175to300K.Theactivationenergyforcarrierthermalizationisreducedasdopingconcentrationincreases.BothBGNeffectandcarrierthermalizationcontributetothecarrierinjectionintotheΓvalley.Asaresult,thedirectbandtransitionisenhancedintheTe-dopedindirectGaxIn1-xPalloys.Therefore,thePLintensityoftheGa0.74In0.26Psamplewithactivedopingconcentrationof9×1017cm-3isincreasedbyfivetimescomparedwiththatofanominallyundopedsample.ItisalsofoundthatthePLintensityisdegradedsignificantlywhenthedopingconcentrationisincreasedto5×1018cm-3.Fromcross-sectiontransmissionelectronmicroscopy,nolargedopantclustersorotherextendeddefectswerefoundcontributingtothisdegradation.

  • 标签:
  • 简介:Inthispaper,weestablishaLyapunov-typeinequalityforfractionaldifferentialperiodicboundary-valueproblems.Asapplications,anecessaryconditionisobtainedtoensuretheexistenceanduniquenessofnontrivialsolutionstothisproblem.

  • 标签:
  • 简介:在在一根管子中的液体的狂暴的流动的热转移被分析。雷纳兹和Prandtl数字的功能被给的Nusselt数字。力量类型关联在大量雷纳兹和Prandtl数字以内被建议。为Nusselt数字的关系与试验性的数据作比较很好。纸论述一种简单形式的三力量类型关联,哪个是有效的因为雷纳兹数字从3???????????????吗??

  • 标签: 功率型 管内湍流 管流 换热 传热计算 雷诺兹数
  • 简介:Anoutsourcedatabaseisadatabaseserviceprovidedbycloudcomputingcompanies.Usingtheoutsourcedatabasecanreducethehardwareandsoftware'scostandalsogetmoreefficientandreliabledataprocessingcapacity.However,theoutsourcedatabasestillhassomechallenges.Iftheserviceproviderdoesnothavesufficientconfidence,thereisthepossibilityofdataleakage.Thedatamayhasuser'sprivacy,sodataleakagemaycausedataprivacyleak.Basedonthisfactor,toprotecttheprivacyofdataintheoutsourcedatabasebecomesveryimportant.Inthepast,scholarshaveproposedk-anonymitytoprotectdataprivacyinthedatabase.Itletsdatabecomeanonymoustoavoiddataprivacyleak.Butk-anonymityhassomeproblems,itisirreversible,andeasiertobeattackedbyhomogeneityattackandbackgroundknowledgeattack.Lateron,scholarshaveproposedsomestudiestosolvehomogeneityattackandbackgroundknowledgeattack.Buttheirstudiesstillcannotrecoverbacktotheoriginaldata.Inthispaper,weproposeadataanonymitymethod.Itcanbereversibleandalsopreventthosetwoattacks.Ourstudyisbasedontheproposedr-transform.Itcanbeusedonthenumerictypeofattributesintheoutsourcedatabase.Intheexperiment,wediscussedthetimerequiredtoanonymizeandrecoverdata.Furthermore,weinvestigatedthedefenseagainsthomogeneousattackandbackgroundknowledgeattack.Attheend,wesummarizedtheproposedmethodandfutureresearches.

  • 标签: 数据库服务 匿名 数据类型 可逆 隐私保护 数据处理能力
  • 简介:磷的分离和在IN706合金的谷物边界的磷化物的降水上的磷内容和热处理的效果被调查了。磷化物有MNP的stoichiometry(M=Nb,Ti和N=Ni,Fe,Cr)并且斜方晶的水晶结构。在IN706合金的谷物矩阵的磷的溶解度决心在0.008%和0.013%之间。当为打印的3-D的表面修正在980l浸泡了时,植入。在这研究,有毛孔的圆柱的多孔的Ti6Al4V(Ti64)脚手架640缩放吗??

  • 标签: 磷化物 IN706 合金 谷物边界分离