（46）（100-106）^Pd偶偶核E-GOS曲线的研究

采用E-GOS方法对（46）（100-106）^Pd偶偶核形状相变进行了研究.研究表明,这些核素都是U（5）-SU（3）的过渡核,且都趋于U（5）极限.并且单粒子激发对区域偶偶核形状相变有重要影响.     

共轭核（N = Z）低激发谱特征的微观 相互作用玻色子模型研究

在唯象和微观玻色子相互作用模型（IBM）中, 由于存在中子-质子自由度, 它们对激发能的相对贡献率始终没有研究清楚. 本研究提出: 假定处在同一大壳层上中子数和质子数相等（N = Z）的共轭核中, 它们对低激发态应该贡献出相等的激发能, 这就绕开了对它们能量分摊评估的一大难题. 本文采用28~50核子大壳层的实验能级值, 对6个偶-偶核, 64Ge6832, Se34, 72Kr7636 , Sr38 , 80Zr40 和84Mo42, 的低激发能谱作了理论计算, 计算能谱很好地再现了复杂的实验测量谱, 支持上述推测. 据此得到的能级值, 中子-质子间等效相互作用强度参数等可以作为进一步研究的起点.     

80Sr核yrast带形状相变的微观sdIBM2研究

γ射线能量-自旋曲线分析方法指认: 80Sr核的yrast带存在从U(5)振动基态到O(6)γ软转子基态的结构相变;借助微观sdIBM-2方案和实验单粒子能量值, 用了除K(np)外, 完全相同的一组参数成功地再现了它们相应的形状相变. 计算结果揭示: 80Sr的yrast带从基态起直到24+态都是集体态, 还没有出现回弯. 理论分析和计算结果表明: 对于有相互作用的中子-质子玻色子两流体, 在给定的g(σ),G(σ),K(σ)下, 增大K(np)意味着增强了核子对反抗Coriolis力拆对顺排的能     

原子核动力学U(15/30)超对称群结构

本文将g玻色子引进偶-偶核心,并认为未配对的核子可占有具有相同宇称的5个能级j=1/2,3/2,5/2,7/2,9/2,研究了超对称U(15/30)的群结构,对其中的U(14)极限作了详细的讨论,并将它应用于核_(80)~(199)Hg_(119),理论与实验符合很好。     

核素分布的漂亮三角形

在氘氚结团为坐标的核素图中,边长11核素的核素分布最大三角形的3顶点为361818Ar180,1365838Ce7820,1967838Pt1184,3边为坐标S38,差K18和参量2S-H=36.最大三角形由4个边长10个坐标单位的小三角形组成,还可由3个6×6核素的菱形组成,3个菱形内部的3个4×4核素组合共有36核素1144830Cd6618,1275232Te7220,1305432Xe7622;中心区有2个最小三角形,其3顶点分别为偶偶核素,奇A核素1195031Sn6919,1255231Te7321,1275332I7421.     

偶坐标S=18～6核素分布的特点

在正方形核素图中，坐标偶常数Ｓ＝１８－６的核素分布显示出系统的规律性，这七个偶Ｓ常数列的连续核表现出坐标Ｓ＝１８有７核，坐标Ｓ＝４与１２各有５核，坐标Ｓ＝１０至６的四列都是三核，呈现出以１，２，４组相同的递变特点。它们的范围下界是坐标Ｈ＝０，偶偶核以坐标（１２，４）为中心联系，其首中终坐标（６，２）（１２，４）（１８，６）以（６，２）的倍数联系。     

偶64～68Ge同位素的对相变及其演化

应用唯象核芯加两准粒子模型的一种微观实现(sdIBM-2 2q．P．)方案并考虑到实验单粒子能量,较成功地再现了偶^64-68Ge核的基态带、β带、γ带和部分高自旋态能谱．基于唯象模型和微观方案求出了s玻色子不拆对和一个d玻色子发生拆对顺排所需要的最小能量值．该阈值明确指认：随着中子数的增加,偶Ge同位素可能发生从^54Ge核的两准质子顺排态向^68Ge核的两准中子顺排态的演化;揭示了偶Ge同位素对相变对象转移的演化过程．     

偶偶Cd同位素核的负宇称带研究

作者将具有正宇称的gds轨道空间扩大到包含具有负宇称的1h11/2轨道，采用修正的表面δ相互作用（MSDI），对^106Cd和^108Cd两个偶偶核作了形变Hatree-Fock(HF)计算，得到了基态和一些激发态的解，同时，还用近似角动量投影形变Hartree-Fock(PDHF)方法，对^106Cd和^108Cd进行了能谱计算，得到其正、负宇称带的解，计算结果与实验谱基本一致。     

5色K_4问题的推广

设Kn是具有n个顶点的完全图,fr（n）是满足下列条件的最小正整数：对于任意的正整数m≥fr（n）,存在Kn的一个m边着色,使得Kn中的任一个Kr至少含r（r-1）/2-1种颜色.确定fr（n）的问题称为n阶完全图的r（r-1）/2-1色Kr问题（4≤r≤n）.给出了f5（n）的上界.关于14色K6问题的充要条件和f6（n）的下界.同时证明了f6（7）=19,f6（8）=26,f6（9）=33;f7（n）=n（n-1）/2-[n/4];fr（n）=n（n-1）/2-1（8≤r≤n）.     

^72Kr核中yrast带结构演化的微观研究

γ射线能量-自旋曲线分析方法指认:72Kr核的yrast带的基态到16+态中存在从振动基态到转动基态的结构相变;借助微观sdIBM-2方案和实验单粒子能量值,用了除K以外,完全相同的一组参数成功地再现了它们相应的基态相变.计算结果揭示:72Kr的yrast带从基态起直到16+1态都是集体态,表明它们还没有出现回弯;相变共存区是6+～8+态;8+态是转动稍占优势的态,而6+态是振动稍占优势的态.理论分析和计算结果预言,第一个两粒子态18+极可能是两中子准粒子态.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-