学科分类
/ 11
210 个结果
  • 简介:Theoretical–computationalstudiesoftable-toplaser-drivennuclearfusionofhigh-energy(upto15MeV)deuteronswith7Li,6Li,andDnucleidemonstratetheattainmentofhighfusionyieldswithinasource–targetreactiondesign.ThisconstitutesasourceofCoulomb-explodingdeuteriumnanodropletsdrivenbyanultraintensefemtosecondnear-infraredlaserandasolidhollowcylindricaltargetcontainingthesecondelement.Thesource–targetreactiondesignattainsthehighesttable-topfusionefficiencies(upto4×109J1perlaserpulse)obtainedtodate.Thehighestconversionefficiencyoflaserenergytonuclearenergy(102–103)fortable-topDDfusionattainedinthesource–targetdesigniscomparabletothatforDTfusioncurrentlyaccomplishedfor‘bigscience’inertialfusionsetups.

  • 标签: COULOMB explosion NANODROPLETS and CLUSTERS source-target
  • 简介:黑暗精力的问题简短在理论、观察的方面被考察。在理论方面,黑暗精力情形被分类进对称,人类的原则,调节机制,修改严肃,量宇宙论,holographic原则,背反应和现象学的类型。在观察方面,我们介绍宇宙的探针,联系的精力投射的黑暗,理论模型上的观察限制和模型独立人士重建。

  • 标签: 暗能量 量子宇宙学 宇宙探测器 观测 逆反应 模型
  • 简介:Thebindingenergyofexcitonsconfinedtoaquantumringundertheinfluenceofperpendicularhomogeneousmagneticfieldiscalculatedasafunctionoftheringradius.Calculationsaremadebyusingthemethodofexactdiagonalizationwithintheeffective-massapproximation.Thefeatureofbindingenergyofthegroundstateasafunctionoftheringradiusforseveralvaluesofthemagneticfieldhasbeenrevealed.Theinterestingfeatureofourstudyisthat,inaquantumring,thegeometricstructureofexcitonsmayrevealtransition.

  • 标签: 量子环 激子 约束能量 物理
  • 简介:模型和贝叶斯的信息标准(BIC)建模的Akaike信息标准(AIC)的选择静电干扰被用于Lambda冷的黑暗物质(LambdaCDM)宇宙论的模型,黑暗精力的状态的黑暗精力,w=常数,和theparametrized方程的状态的经常的方程,w(z)=w(0)+w(1)z/(1+z),决定哪个是更好宇宙论的模型由包括Sne联合最近的宇宙的观察数据描述宇宙的进化是,baryonich的尺寸从SDSS的声学的摆动(BAO)山峰,树年WMAPCMB移动参数。结果证明AIC,BIC和当前的数据集不是足够强大的从其它区别一个模型,尽管机会建议他们之间的差别。

  • 标签: 宇宙学 参数 变量 黑物质
  • 简介:Artificalneuralnetworks(ANN)arenowwidelyusedsuccessfullyastoolsforhithenergyphysics.Thepapercoverstwoaspects.First,mappingANNsontotheproposedringandlinearsystolicarrayprovidesanefficientimplementationofVLSI-basedarchitecturessinceinthiscaseallconnectionsamongprocessingelementsarelocalandregular,Second.itisdiscussedalgorthmicorganizingofsuchstructuresonthebaseofmodularalgebrawhoseusecanprovideanessentialincreaseofsystemthroughput.

  • 标签: 高能物理实验 人工神经网络 数据处理
  • 简介:TheinteractionprocessofionsandplasmasisanimportanttopicinIon-Beam-DrivenHighEnergyDensityPhysicsandInertialConfinementFusionresearch.Duetothestrongnon-lineareffectsandthespecialimportanceinICFresearch,moreandmoreemphasishasbeengiventotheinvestigationsforionbeaminlowenergyrangeand/orforplasmawithhighintensity[1;2].Here,weaddressthenewlymeasuredresultsoftheenergylossbyslowionspenetratingthefullyionizedhydrogenplasmatarget.

  • 标签: ENERGY MEASUREMENT IonsPenetrating
  • 简介:在前後一致的Hartree-Fock近似以内,一在为不同类的Bose气体的扎根的州的精力的这近似表情明确是被导出一Bose爱因斯坦冷凝物的不同类的密度功能。获得的结果与Bose爱因斯坦冷凝物为系统在单个粒子的密度矩阵基于离开斜的远程的顺序的存在。这使避免异常一般水准的使用可能。动能的明确的形式,在Gross-Pitaevski途径不同于一个,被发现。动能的获得的形式在Hartree-Fock近似以外是有效的并且能被申请任意的强壮的interparticle相互作用。

  • 标签: Hartree-Fock近似 非均匀 玻色-爱因斯坦凝聚体 基态能量 玻色气体 粒子间相互作用
  • 简介:RelativeEnergyCalibrationforMeasurementofParticleCorrelations¥DuanLimin;LiZuyu;JinGenming;HeZhiyong;LuoQingzheng;WuHey...

  • 标签: 瑁?
  • 简介:Nanocarbonmaterialsplayacriticalroleinthedevelopmentofneworimprovedtechnologiesanddevicesforsustainableproductionanduseofrenewableenergy.Thisperspectivepaperdefinessomeofthetrendsandoutlooksinthisexcitingarea,withtheeffortofevidencingsomeofthepossibilitiesofferedfromthegrowinglevelofknowledge,astestifiedfromtheexponentiallyrisingnumberofpublications,andputtingbasesforamorerationaldesignofthesenanomaterials.Thebasicmembersofthenewcarbonfamilyarefullerene,graphene,andcarbonnanotube.Derivedfromthemarecarbonquantumdots,nanohorn,nanofiber,nanoribbon,nanocapsulate,nanocageandothernanomorphologies.Secondgenerationnanocarbonsarethosewhichhavebeenmodifiedbysurfacefunctionalizationordopingwithheteroatomstocreatespecifictailoredproperties.Thethirdgenerationofnanocarbonsisthenanoarchitecturedsupramolecularhybridsorcompositesofthefirstandsecondgenerationnanocarbons,orwithorganicorinorganicspecies.Theadvantagesofthenewcarbonmaterials,relatingtothefieldofsustainableenergy,arediscussed,evidencingtheuniquepropertiesthattheyofferfordevelopingnextgenerationsolardevicesandenergystoragesolutions.

  • 标签: 纳米碳材料 可再生能源 应用 存储解决方案 可持续生产 太阳能装置