某些偶数度循环图的同构因子分解

根据连通循环图的性质，证明了循环图的同构因子分解，对于某些偶数度循环图结论成立，得到了Ｃｎ〈ｊ１，ｊ２，…，ｊｒ〉及Ｃｎ〈１，２，…，ｒ〉的同构因子分解条件．     

l-半环与l-环的因子分解

该文讨论了I-半环的因子分解,得到了I-半环存在唯一因子分解的条件,并应用到I-环,得到了I-环中的唯一因子分解条件.     

矩阵的半正定因子及次酉极因子的扰动界

在矩阵的扰动分析中,广义极分解和奇异值分解占有非常重要的地位。对矩阵进行广义极分解,得到半正定因子和次酉极因子。利用矩阵的奇异值分解和广义极分解,得到了范数意义下矩阵的半正定因子和次酉极因子的扰动界,且扰动界是以恒等式的形式给出。     

Cayley图的齐次因子分解的构造

有限图的齐次因子分解理论是近年来提出的一个新兴研究课题.从图的齐次因子分解的本质出发,首先给出了Cayley图齐次因子分解的等价定义,基于此定义,采取理论构造的方法,研究了Cayley图齐次因子分解的3类构造,即一般齐次因子分解的构造、Cayley齐次因子分解的构造、Cayley-cyclic齐次因子分解的构造,得到了3种可行的构造方法,进一步完善了有限图的齐次因子分解理论,其价值和实用性还在于其用于相关命题的证明,使得证明过程较其他方法更简洁明了.     

关于多项式环上的矩阵

讨论了多项式矩阵最大公因子与最小公倍的有关性质,同时给出了多项式矩阵的分解定理。     

M进制细分方程解的正则性

如果M进制细分方程Φ(x)=∑Nk=0PkΦ(Mx-k)的细分面具P有逼近阶m，则此面具是可以因子化的。利用细分面具P的因子分解性质及其谱特性研究细分方程解的光滑性，得到了解的光滑性的若干充分条件。     

Lucas数的标准分解式中素因子3的指数

根据Lucas数列的定义,利用初等数论的知识和数学归纳法,讨论了正Lucas数Ln的标准分解式中因子3的指数与下标n的关系,得到结论:Ln的标准分解式中因子3的指数取决于下标n的标准分解式中因子3的指数。     

Lucas数列中素因子11的指数

根据Lucas数列的定义,利用初等数论的知识和数学归纳法,讨论了正Lucas数L_n的标准分解式中因子11的指数与下标n的关系,得到下列结论:L_n的标准分解式中因子11的指数取决于下标n的标准分解式中因子11的指数,即当n的标准分解式中素因子11的指数为l时,L_(5q)的标准分解式中因子11的指数为l+1.     

完全图的交换齐次因子分解

通过对完全图交换齐次因子分解的研究,得到素数幂的顶点个数的完全图KPn(p为素数),有交换齐次因子分解,并且群M包含一个初等阿贝尔p群;对Kn(n非素数幂),得到其存在交换齐次因子分解的一个充分条件.     

可约中心构形因子分解的应用

研究了可约超平面中心构形因子分解的应用.得到了可约中心构形与其因子构形的麦比乌斯函数和庞加莱多项式之间的关系;并且利用线性代数的基本性质给出了构形超可解性的一个定理的证明：若中心构形A1,A2,L,Acc是超可解构形,那么它们的乘积构形A=A1×A2×L×Acc也是超可解的.     

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-