Using the fully consistent rrpa method , we have studied the properties of collective multipole excitations for several closed - shell and closed sub - shell nucleus in the isoscalar modes and isovector modes 计算结果显示，从fermi海核子态到dirac海负能核子态形成的对激发在核的集体激发中的贡献很重要，尤其是对核的同位旋标量激发模式。
To perform the optimization analysis , a new numerical simulation method , named as dual - velocity algorithm for flow calculation on collocated grids ， is developed and the iterative formulas of the optimization principles are presented 为了用数值方法研究传热过程的优化，发展了一种基于同位网格的流场计算的双速度算法以及描述各优化原则的迭代过程。
The neutron halo structure of the first excited state of i3c and the neutron - proton halo structure of the second excited state of 6li , which is the isobaric analog state of the ground state of 6he , were considered the most probable candidates to search for 前者的中子晕结构已为实验所证实，后者是中子晕核~ 6he (基态)的同位旋相似态，其中子-质子晕结构至今尚未被实验证实。
The descendants and the older generation have the similar heredity gene , thus the shen wu dian magnetic wave has similar kind of transmission , being able to induce , just like the radio only can receive the electromagnetic wave that is of the same frequency 子孙与先辈具有同类型的遗传基因，其生物电磁波之间具有同位信息，能够感应，就象收音机只能接收到频率相同的电磁波一样。
The results indicate that the effects of the dirac sea states are pronounced in the collective multipole excitations for nuclei , especially on the isoscalar giant modes , but become weaker for light nuclei , while the contributions on the isovector modes are negligible 在核的同位旋标量激发模式中， dirac海负能核子态在不同的共振模式中的贡献程度不一。对于同一种激发模式， dirac海负能核子态的贡献随着核子数的减少而变弱。
Those investigations have improved one ' s understanding of the structure , formation conditions , reaction mechanisms , and excitation modes of halo nuclei . inl990 ' s it was predicted that besides the ground state of the light nuclei near the drip line , the high isospin excited states may also have halo structure 除滴线附近轻核的基态外，九十年代有人预言稳定核的高同位旋激发态也可能具有晕结构， ~ ( 13 ) c第一激发态和~ 6li第二激发态被列为首选的研究对象。
This should be an incentive to apply the rrpa method with non - linear effective lagrangians to study other systems such as unstable nuclei near drip lines . for nuclei with the extreme value of n / z , low - lying collective excitations are found in isovector dipole modes , which are mainly due to the particle - hole excitation of weakly bound states near fermi surface and the isospin mixture effect 将相对论无规位相近似理论推广应用到奇特核集体激发态的研究，发现对于奇特核的同位旋矢量激发模式在很低能量下会出现软模式的巨偶极共振，这主要是由于费米面附近粒子-空穴激发所形成的。
The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics . based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model , we have studied them and obtained some interesting results . as for the study of isospin in intermediate energy hics , we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables , such as the yield , phase - space , and isospin distributions of fragments , as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n , , light - charged - particle ( lcp ) multiplicity n , and neutron multiplicity n , 在中能重离子碰撞的同位旋研究方面，分别研究了对称势的强度( c _ s )和其密度依赖形式对中能重离子核反应各类碎片产物产额、相空间、及其同位旋的分布，中等质量碎片多重数( n _ ( imf ) )与带电粒子多重数( n _ c ) 、轻带电粒子多重数( n _ k ) 、中子多重数( n _ n )的关联等多种实验观测量的影响，以获取对称势中该两方面的信息，尤其着重于研究如何分别获取有关该两方面的信息的途径。
A compound word consisting of a noun combined with another noun or modifying adjective , the compound being treated as a noun in apposition ; if the adjective is the final element in a species - group name , its ending is determined by the gender of the noun it modifies ( and not by that of the generic name with which the species - group name is combined ) 一个名词与另一名词或修饰性形容词组成的复合字,这种复合字以同位名词对待;如果该形容词为一个种群名称的最后部份,其结尾由所修饰的名词的性属来决定(并非由与该种群名称相组合的属名的性属来决定) 。
Based on the revers kinetic intermediate energy heavy ion collision in which much more intermediate mass fragments are emitted towards forward angles , a sensitive observable on isospin effects in heavy ion collisions is investigated by means of using isospin dependent quantum molecular dynamics ( iqmd ) 摘要在重离子碰撞过程中，基于重质量的弹核轰击轻质量靶核有大量中等质量碎片向前发射的逆运动学效应，利用同位旋相关的量子分子动力学观察和研究了重离子碰撞过程中同位旋效应的灵敏性。
