学科分类
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17 个结果
  • 简介:Preparationofthetemporalboneforlightmicroscopyisanimportantstepinhistologicalstudiesoftheinnerear.Duetothecomplexityofstructuresoftheinnerear,itisdifficulttomeasureorcomparestructuresofinterestwithoutacommonlyacceptedstandardizedmeasureoftemporalbonesections.Therefore,standardizationoftemporalbonesectionsisveryimportantforhistologicalassessmentofsensoryhaircellsandperipheralganglionneuronsinthecochlearandvestibularsystems.Thestandardizedtemporalbonesectioningisorientedtoaplaneparalleltotheouterandinternalauditorycanals.Sectionsarecollectedfromtheepitympanumtothehypotympanumtoreveallayersintheorderofthecristaampullarisofthesuperiorandlateralsemicircularcanals,maculautriculiandmaculasacculi,superiorvestibularganglionneurons,maculaofsacculeandinferiorvestibularganglionneurons,cochlearmodiolus,endolymphaticductandendolymphaticsac,andfinallythecristaampullarisoftheposteriorsemicircularcanal.Moreover,technicaldetailsofpreparingfortemporalbonesectioningincludingfixation,decalcification,wholetemporalbonestaining,embeddingpenetration,andembeddingorientationarealsodiscussed.

  • 标签: 标准化 颞骨 实验动物 神经节细胞 内淋巴囊 脱钙技术
  • 简介:在在精力的反应关上到库仑障碍的multinucleon转移的主要进步被考察。在试验性的进步和理论进步的一个短演讲以后,为未知充满中子的重原子核和trans铀原子核的预言的生产十字节被介绍。

  • 标签: 转移反应 原子核 生产 情调 试验性 十字节
  • 简介:ppΛ→pK~+Λ的反应。是一条很好的隧道通过他们的KΛ腐烂模式学习N~*回声,因为没有混合isospin我=1/2并且我=3/2due到isospin保存。在这个工作,我们扩大一个回声模型,它能复制全部的生气的节很好,到提议这反应的微分生气的节信息。它能用作一本参考书在Lanzhou更凉爽的存储戒指(CSR)造安排强子察觉者。在未来的这些微分生气的节的实验测量将供应我们模型和帮助上的更多的限制我们更好理解奇妙生产动力学。

  • 标签: 谐振模型 PP碰撞 理论物理 交叉段
  • 简介:Theadditivityruleforelectron-moleculescatteringisrevisedbyconsideringthedifferencebetweenthefreeatomandtheboundatominthemolecule.Thetotalcrosssectionsforelectronscatteringfromfluoromethanes(CF4,CF3H,CF2H2,andCFH3)arecalculatedinanenergyrangefrom100eVto1500eVbytherevisedadditivityrule.Thepresentcalculationsarecomparedwiththeoriginaladditivityruleresultsandtheavailableexperimentaldata.Betteragreementwitheachotherisobtained.

  • 标签: 可加性规则 电子散射 分子散射 氟代甲烷 修订 总截面
  • 简介:在这份报纸,有不同剖面图的空、充满泡沫的铝试管的精力吸收机制(圆形、方形、椭圆形)在弯曲下面,负担数字地被调查。现在的模拟的负担排水量曲线在出版试验性的数据的对那些的很好的同意。这里,存在分析明确的表达被考察并且与试验性的结果相比。另外,不同剖面图的效果和精力吸收能力和这些试管的特定的精力吸收上的墙厚度充分被调查。结果显示有1.5公里和2公里厚度的一个椭圆形的充满泡沫的试管的精力吸收分别地与方形的比较增加大约45%和73%。

  • 标签: 泡沫填充 弯曲行为 横截面 铝管 能量吸收能力 实验数据
  • 简介:Discriminationsinalocalchemical,fluidal,mechanicalandthermalprocessesinashearzonewillleadtometallogenicdifferentiationinalocalsection.Thispaper,basedonthegeneralgeologicalsettingoftheShibangougolddepositinXixia,Henan,dealswithpetrologicalandpetrochemicalsamplesofalteredrocksinthemetallogenicsectionandofmylonitesinthenon-metallogenicsectionofaselectedshearzone.Thediscriminationsinfluid-rockinteractionandpetrologicalmassbalancebetweenalteredrocksneartheorebodyandmylonitesintheshearzonearediscussedaswell.Theresultsshowthatthepetrologicalvolumeofalteredrocksinthemetallogenicsectionoftheshearzoneisalmostalwaysdilatantandthemylonitevolumeinthenon-metallogenicsectionisalmostalwayslost.Majorelementsinalteredrocksfromthemetallogenicsectionandinmylonitesfromthenon-metallogenicsectionalwaysshowatendencyofbeingenrichedanddepleted,respectively.Fluid-rockratiosinthemylonites(Nu=93.68-468.40)arelargerthanthoseofthealteredrocks(NC(Ⅳ)^s=36.11-216.67).Thegainandlossofmajorandtraceelementsfromthealteredrocksandmylonitesintheshearzoneareacompositeprocesstobeimportedandexportedbypercolatingfluidsaswellasofthelossanddilatancyofrockvolume.

  • 标签: 剪切带 金属矿物 水岩反应 金矿床 非金属矿物 糜棱岩
  • 简介:Amethodbasedupontheweightedtotalcrosssection(WTCS)theoryisproposedtocalculatethephoto-ionisationcrosssectionsandtheradiativerecombinationratecoefficientsbetweenthefundamentallevelofCOandthemainelectronicstatesofitscorrespondingion.Totalphoto-ionisationcrosssectionsandradiativerecombinationratecoefficientsaredeterminedfromthecalculationofelementaryvibrationalphoto-ionisationcrosssections.TransitionsbetweenCO~+(X,AandB)andCO(X)areconsidered.Totalphoto-ionisationcrosssectionsandrecombinationcoefficientsarecomputedinthetemperatureinterval500-15000K.

  • 标签: 复合速率系数 光电离截面 CO2 计算 辐射 分子
  • 简介:Ozoneisagreenhousegas.Ozoneabsorptioncrosssectionshavebeenreportedwithdiscrepanciesandinconsistencies.Inthispaper,simultaneouseffectsoftheopticalpathlengthandtemperaturevariationsonozonegasabsorptioncrosssectionsareinvestigatedatdifferentwavelengths.HITRAN2012,thelatestavailablelinelistonspectralcalc.comsimulator,isusedinthisstudytosimulateozonegasabsorptioncrosssectionsinrelationtothesimultaneouseffectsoftheopticalpathlengthandtemperatureatthewavelengthsof603nmand575nm.Resultsobtainedforgascellswiththeopticalpathlengthfrom10cmto120cmshowthatthedecreaseintemperaturesfrom313Kto103Kresultsintheincreaseinozonegasabsorptioncrosssections.Atwavelengthsof603nmand575nm,thepercentageincreaseofozonegasabsorptioncrosssectionsis1.22%and0.71%,respectively.Resultsobtainedinthisstudyshowthatinthevisiblespectrum,atconstantpressure,ozonegasabsorptioncrosssectionsaredependentonthetemperatureandwavelengthbutdonotdependontheopticalpathlength.Analysisinthisworkaddressesdiscrepanciesinozonegasabsorptioncrosssectionsinrelationtothetemperatureinthevisiblespectrum;thus,theresultscanbeappliedtogetoptimalconfigurationofhighaccuracyozonegassensors.

  • 标签: 臭氧气体 吸收截面 温度变化 路径长度 模拟器 波长
  • 简介:Totalcrosssections(TCSs)ofelectronsscatteringfromtriatomicmoleculesovertheenergyrangefrom30to5000eVareinvestigatedemployinganewsemi-empiricalformula.TheTCSsofelectronsscatteringfromtriatomicmoleculesSO2,NO2,andCO2arecalculated.ThequantitativeTCSsareingoodagreementwiththoseobtainedbyexperiments.Itisshownthattheresultsderivedfromthesemi-empiricalformulaaremuchclosertothemeasurementsthanothercalculations.

  • 标签: 准经验公式 电子散射 能量范围 光电子
  • 简介:Electronscatteringfromsphericalpolyatomicmoleculesintheintermediateandhighenergyrangeisstudiedbyemployingthedevelopedsemi-empiricalformulaforelectronscatteringfromsimplediatomicmolecules.ThetotalcrosssectionsofelectronscatteringfromCF4andCC14areobtainedovertheincidentenergyrange30-5000eV.Thequantitativetotalcrosssectionsarecomparedwiththemeasurementsandwiththeothercalculationswhereveravailableincludingtheresultsderivedfromtheadditivityrulemodelandthecorrelatedopticalpotential[Chin.Phys.Left.21(2004)474],andgoodagreementisobtainedovertheincidentenergyrange30-5000eV.Itisshownthatthecalculationsderivedfromthesemi-empiricalformulaaremuchclosertothemeasurementsthanothercalculations.Finally,somequantitativeinformationofthesingleYukawapotentialisalsoobtained.

  • 标签: 电子散射 球形多原子分子 分子物理学 四氯化碳 四氟化碳 半经验理论