查询词典 nucleon number

Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equation is a standard evolution equation of partons in nucleon.

中文题名QCD演化方程中高扭度效应的研究副题名外文题名论文作者阮建红导师厉光烈研究员学科专业理论物理研究领域\研究方向学位级别博士学位授予单位中国科学院高能物理研究所学位授予日期2001 论文页码总数92页关键词量子色动力学高扭度效应馆藏号BSLW /2003 /O572 /19 描述核子中部分子演化的标准动力学方程是Dokshitzer-Gribov-Lipatov-Altarelli-Parisi演化方程。

The excluded volume effect of nucleons is studied by calculating the first order self-energy of the nucleon in nuclear matter with perturbation theory as the volume of nucleons is considered, then its influence on the equation of state of nuclear matter is discussed.

在相对论平均场框架内计算了核子体积对核物质中核子自能的一级微扰修正，并进一步讨论了这种修正对核物质状态方程的影响。

No apparatus can detect neutrinos unless it is extremely massive, because great mass is synonymous with huge numbers of nucleons, and the more massive the detector, the greater the probability of one of its nucleon's reacting with a neutrino.

没有仪器可探测到中子除非它非常之大，巨大的同时会产生很多合子，探测器越大，其合子同中子发生反应的几率也就越大。

This article applies emulsion polymerization to synthesize polyacrylate emulsion,with dyestuff bonded into polymer chains by the nucleon substitution between NH2 group in polyacrylamide monomers and the Cl group in dyestuff molecules to prepare colorful polyacrylate emulsion.

采用乳液聚合方法合成丙烯酸酯乳液后，通过用含有—NH2的单体与染料分子中的—C l进行亲核取代反应，通过化学反应直接将染料分子接到聚合物链中，得到彩色丙烯酸酯乳液。

There are several ways toobtain the DBHF self-energy from the G matrix used before, such as a simple method,where the Dirac structure of the nucleon self-energy is obtained from the momentumdependence of the single-particle energy, and a projection method.

在不同的不对称系数条件下，我们计算出的各密度处的核子平均结合能满足经验的抛物线规律，给出了密度依赖的不对称能。

If we want to get the effective mass by the method of computing the meson self-energy , we need to consider the change of the effective mass of the nucleon along with the increasing density of the nuclear matter,namely considering the fluctuation of the vaccum.

很多研究[3，4，5，6，11，12]表明了上式描述的规律是正确的，如果用计算介子自能的方法来得到介子的有效质量，需要考虑核子的有效质量的随核物质的密度的变化，即需要考虑核子的真空涨落，当不考虑核子有效质量随核物质密度变化的时候，ρ介子、ω介子的有效质量一般是上升的。

We adopted the new decomposition approach of the DBHF G-matrix, which was recently proposed by Schiller and Muether and calculate the Dirac structure of the nucleon self-energy.

论文重点讨论了不同密度和不对称系数对不对称核物质中质子和中子的光学势的影响，分析表明，质子和中子的光学势随β值的变化规律相反。

We adopted the new decomposition approach of the DBHF G-matrix, which was recently proposed by Schiller and Muether and calculate the Dirac structure of the nucleon self-energy.

通过分析不同的介子交换过程我们可以发现，来自能量无关的DBHF的直接项的贡献在核子自能中占主要的部分，自能的动量相关来自交换项的贡献，而G矩阵中的短程关联项ΔG减小了自能的强度。

In a quark model description of the nucleon, however, such time-derivative term might contribute because it is hard to construct a true Hamiltonian eigenstate of relativistic interacting quarks.

我们同样也注意到在一个复合粒子的现象模型中这一项可能是非零的，因为这个模型中的波函数可能不是真实的Hamiltonian本征态。

It was already suggested in the early days of nuclear physics that thenucleon-nucleon interaction is mediated by the exch...

在核物理发展的早期，人们就认为核子与核子的相互作用是通过交换介子进行的。

Based on the relationship and the phenomenon model, an improved model of MR damper has been presented in this paper.

摘 要：本文在实验数据的基础上建立了磁流变阻尼器输出力与不同常电流控制量的关系，对现有的 p模型进行了改进。

I don't think our founding fathers were very fuckable.

我认为我们的开国元老没什么吸引力