共查询到20条相似文献，搜索用时 78 毫秒
1.
运用二维总位能面计算方法计算了偶偶核172W的总位能面,计算结果表明偶偶核172W有明显的三轴超形变,形变参数为ε2=0.38和γ=35°.分析计算过程发现对于偶偶核172W的三轴超形变形成机理中,中子壳修正能量起到了关键作用,高j闯入轨道也起到了重要作用,转动能同样起到了一定的作用. 相似文献
2.
采用计算转动坐标系下总位能面的方法(TRS方法)，计算了^154Er的总位能面，并通过自洽计算，给出了四极形变参数和三轴形变参数，证明了^154Er存在三轴超形变核态，与实验结果相符。 相似文献
3.
运用三维TRS自洽理论对^164Lu核的位能面进行了计算，结果与实验基本一致，从而从理论上确认了^164Lu是三轴超形变核，并指出了存在三轴超形变带的组态． 相似文献
4.
李晓伟 《赤峰学院学报(自然科学版)》2018,(9)
采用TRS方法对~(174)Hf的四准粒子不同组态进行了二维计算,结果这几个组态的总位能面中都没有得到可以表征三轴超形变存在的第二极小值.同时,讨论了根据粒子轨道能量随形变变化的曲线特点来估计可能组态的方法. 相似文献
5.
根据TRS理论计算了^157Tm核的位能面，并预言了其三轴超形变的存在,计算的结果与文献上的结果符合得较好。 相似文献
6.
采用TRS方法对^168Lu新发现的一条三轴超形变转动带进行了理论计算，在理论上进一步证实了其存在的三轴超形变，并通过三维自洽计算得到了其形变参数值，结果与文献一致． 相似文献
7.
何志刚 《湖州师范学院学报》2007,29(2):126-128
分析和计算了极化作用下的极化电场能.将极化电场能与介质形变相应的弹性位能对比,通过理论分析,提出电极化场能是介质体内的一种"弹性能",与介质形变相应的弹性位能可以转化为动能,与介质极化相联系的弹性电位能可以转化为极化电场能. 相似文献
8.
9.
采用基于形变woods-Saxon势下的推转壳模型理论和处理对力的Lipkin-Nogami(LN)方法,研究了<'187>T1的形状共存问题.在自洽条件下,通过求解推转的LN方程得到了原子核总的位能面(TRS)图,证实了在<'187>T1核中的形状共存现象,得到了与实验一致的结果. 相似文献
10.
戴泾明 《广东教育学院学报》2004,24(2)
将轻超核考虑成一个壳心核加上一个粒子的两集团结构,基本的YN相互作用取自于组分夸克模型,采用共振群方法,给出了ΛN相互作用的非定域位,用Kohn Hulth啨n Kato变分法,计算了轻超核5ΛHe的Λ超子的结合能.计算结果表明:手征SU(3)夸克模型能较好地描述系统中短程的非微扰QCD行为,结合能的理论值与实验结果的接近程度可与传统唯象方法相比拟.选用不同的参数有望得到更好的结果. 相似文献
11.
罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
12.
Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
14.
15.
16.
《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
17.
陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
18.
邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
19.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献