核物质

  • 网络nuclear matter;nuclear material;DNA
核物质核物质
  1. σ介子的自相互作用对核物质物态方程的影响

    Influence of Self-Interaction of σ Meson to the Equation of State of Nuclear Matter

  2. 核物质中K介子有效质量

    Kaon Effective Mass in Nuclear Matter

  3. 用相对论HF理论研究核物质的性能

    Properties of Nuclear Matter in a Relativistic Hartree-fock Theory

  4. 在原核生物中,核物质仅是一个简单的环状DNA,而不与组蛋白结合,并且细胞为无丝分裂。

    In prokaryotes the nuclear material is simply a circular strand of DNA , not complexed with histone proteins , and cell division is amitotic .

  5. 利用这些结果,分析了模型和参数组对核物质中K介子有效质量影响的大小,得到了不同参数组下K介子有效质量随核物质密度的变化关系曲线。

    The effective masses of kaon and antikaon in asymmetric nuclear matter are also studied by using different models with different parameter sets .

  6. SGⅡ型势不对称核物质的声速

    Speed of sound in asymmetric nuclear matter with SG ⅱ - type interactions

  7. 用几何模型计算了相对论重离子碰撞中产生的J/在核物质中的吸收长度。

    Based on geometric model the absorption length of produced J / in nuclear matter for relativistic heavy ion collisions is calculated .

  8. 利用O/W型乳化添加非溶剂法,制备了水溶性药物复合高分子微胶囊,实验所选择的核物质为茶碱,壳物质为乙基纤维素。

    An O / W emulsion non solvent addition method was used to prepare ehtylcellulose ( EC ) microcapsules of water soluble pharmaceuticals ( theophylline ) .

  9. 同位旋非对称核物质性质与扩展的BHF方法(Ⅳ)单粒子势与有效质量

    Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (ⅳ) Single-Particle Potential and Effective Mass

  10. 对赝标耦合和赝矢耦,严格求解了经典π场中对称核物质能量与π场Φ及其波数k的关系。

    Exact relations between the energy of a symmetric nuclear matter loaded in a classical π field and the value φ and wave number k of this π field were obtained for pseudoscalar coupling and pseudovector coupling .

  11. 核物质热力学性质的扩展Skyrme力研究

    Thermodynamical Properties of Nuclear Matter With Extended Skyrme Forces

  12. 在极高的温度、密度状态下,核物质将发生夸克-胶子等离子体(QGP)的相变。

    At extremely high temperature or density , the nuclear matter will transit into Quark-Gluon Plasma ( QGP ) state .

  13. 采用核物质近似和Skyrme有效相互作用得到的核子微观光学势,用折叠公式计算了氘核的微观光学势。

    The nucleon microscopic optical potential is calculated by applying nuclear matter approximation and effective Skyrme interaction .

  14. 本文讨论了在核物质理论中所出现的受Pauli原理限制的对五个动量矢量的15重积分。

    A 15-fold integral over 5 momentum vectors which appears in nuclear matter theory and is subjected to the Pauli principle is discussed .

  15. 本文采用SGⅡ型有效势(包括SGⅡ势和RATP势)计算了不对称核物质的声速。

    The speed of sound in asymmetric nuclear matter with SG ⅱ - type potential ( including SG ⅱ and RATP potential ) is calculated .

  16. 本文主要采用(QHD-Ⅰ)模型和ZM模型,讨论了在热密核物质中核子有效质量的变化规律。

    Here by applying QHD-I model and ZM model , we have mainly discussed the effective nucleon mass in hot and dense nuclear matter .

  17. 本文运用有效的Skyrme相互作用在核物质和有限核中研究了核子在各种温度时的光学势及平均自由程。

    The optical potential and mean free paths of nucleons at finite temperatures in nuclear matter are studied based on the effective Skyrme interaction .

  18. 在构造Ⅱ型超新星的瞬时爆发模型时,我们通过修改核体能常数Cb和核物质压缩模量k0,得到Ⅱ型超新星的瞬时爆发较佳参数组。

    When we structure instantaneous explosion model of type ⅱ supernova , the nuclear physical constants cb and nuclear material compression modulus k0 are modified to get a " better parameter group " to achieve explosion .

  19. 在GCM理论框架下通过将化学势引入双定域场和有效作用量,本文找到一种有效的方法研究π介子在有限密度核物质中的一些性质。

    In the frame of GCM , by introducing the chemical potential of baryons in this paper , we have found an effective method to study some properties of TT Meson in a nuclear matter with finite density .

  20. 使用相对论Thomas-Fermi(RTF)及相对论Hartree近似方法,在改进的标量微分耦合模型的基础上,计算了半无穷上核物质中张量耦合及m。

    With the use of modified derivative scalar coupling ( MDSC ) model , the nuclear surface properties and the spin-orbit potential in semi-infinite nuclear matter have been investigated in the framework of relativistic Thomas-Fermi and Hartree approaches .

  21. 核物质饱和点的对称能与208Pb的中子皮厚度近似呈线性关系。

    For all effective interactions , a linear relation between the symmetry energy at saturation point and the neutron skin thickness for 208 Pb is observed .

  22. 研究相对论性重离子碰撞的目的是研究核物质在极端条件(高温高密)下强相互作用的性质以及探寻可能存在的夸克-胶子-等离子体(QGP)。

    The purpose of studying relativistic heavy-ion collision is to learn the properties of strong interaction for the nuclear matter at extreme condition ( high temperature and high density ) and to look for the possible existence of the Quark-Gluon-Plasma .

  23. 这样的能量密度要高于平衡态下核物质的能量密度,因而可能有助于形成新的物质形态,如夸克胶子等离子体(QGP)。

    An energy density of the order of a few GeV / fm2 may be achieved . This energy density of nuclear matter in equilibrium , may favor the formation of new forms of matter such as the quark-gluon plasma ( QGP ) .

  24. 简要介绍核物质中核子的质量、半径及夸克凝聚的密度依赖关系基于QCD模型和QCD有效场论研究的现状,并具体介绍整体色对称模型(GCM)的研究结果。

    The status of the investigations on the nucleon mass , nucleon radius and quark condensate in the framework of QCD-inspired models and QCD effective field theories is briefly reviewed . The results in the global color symmetry model ( GCM ) are described a little detailedly .

  25. GCM研究表明,在小于临界密度的情况下,核物质中核子的质量随核物质密度的增大而减小,核子的半径和夸克凝聚随核物质密度的增大而增大。

    The calculated results indicate that , before the maximal density is reached , the mass of a nucleon in nuclear matter decreases , the radius of a nucleon and the quark condensate increase very slowly , with the increase of the nuclear matter density .

  26. 基于Skyrme-Hartree-Fock理论研究了两种典型的非对称核物质状态方程(软对称势和硬对称势)对中子星中化学组分的影响。

    Based on the Skyrme-Hartree-Fock theory , the proton fractions of the neutron stars are investigated for two typical asymmetric nuclear matter EOS , namely the soft symmetry potential and stiff symmetry potential .

  27. 鉴于相对论平均场(RMF)理论在对核物质,有限核,以及其他领域研究中的运用取得了较大的成功,在本文的实际计算中,我们亦采用相对论平均场的思想。

    It is widely known that the relativistic mean field ( RMF ) method is rather successful in the researches of nuclear matter , finite nuclei and other fields . In our paper , we use the basical spirit of RMF in practical calculation .

  28. 对于核物质,取核子的Hartree-Fock自能为光学势的实部,交换σ和ω介子的极化图为光学势的虚部。

    We let only the Hartree-Fock self-energy of nucleon represent to be the real part of the microscopic optical potential and the fourth order of meson exchange diagrams , i. e. the core polarization represent the imaginary part of microscopic optical potential in nuclear matter .

  29. 核物质中的能量损失效应是不同于束缚核子部分子分布函数核效应的另外一种核效应,而核Drell-Yan过程是研究这种能量损失效应的最佳途径。

    The paper discusses energy loss effect in nuclear matter , which is a nuclear effect , apart from the nuclear effect on the parton distribution as in deep-inelastic scattering process , that can be measured best in the high energy nuclear Drell-Yan process .

  30. 结果表明:在SkyrmeHartreeFock框架内,同位旋非对称核物质会发生从非极化态到极化态的相变,而且发生相变的临界密度随同位旋非对称度增大而降低。

    It is shown within the Skyrme-Hartree-Fock framework that there is the ferromagnetic phase transition in the isospin asymmetric nuclear matter at some density , above which the nuclear matter becomes stable against spin fluctuation , and the critical density for the ferromagnetic transition decreases with increasing the asymmetry parameter .