由准仿射映射生成的分形的维数

将平面上的仿射映射在Z^2上离散化,构造出了一类分形．通过对其结构和性质的讨论,得到了该类分形边界的Hausdorff维数的算法．     

具有间断点的分形插值函数及其维数

文献[1]提出了具有间断点的分形插值方法,根据给定的插值结点和给定的纵向压缩因子构造出二维空间上的一个映射,其不变集为通过插值结点的具有间断点的分形曲线.本文给出了具有间断点的仿射分形插值函数和递归仿射分形插值函数的关系,从而得到分形插值函数图像的计盒维数定理.     

矩形上一类全组合偏差极值问题

给出矩形上组合偏差及全组合偏差的新定义,研究了从矩形到矩形上保持端点对应的所有同胚映射在这两类偏差中的极值问题。运用Euler-Lagrange方程、面积长度法和均值不等式证明,并得到这两类极值问题的解为仿射映射,推广了唐茹月在矩形上组合偏差函数极值问题的解是仿射拉伸变换的结果。     

有序域上仿射几何之同构

本文首先给出了仿射几何的公理构造法、一般体(或域)上的仿射几何以及体(或域)K上的仿射几何之同构的意义。进而又给出了有序仿射几何、有序域上的仿射几何的意义。最终论证了仿射几何的基本问題:每一个同公理化定义的仿射几何与有序域上仿射几何的同构问題。     

矩形上全组合偏差的极值问题

根据Kalaj在圆环上给出的全组合偏差定义,给出了矩形上全组合偏差和组合偏差的定义.同时,在从矩形到矩形上并保持端点的所有同胚映射类中,分别考虑了组合偏差和全组合偏差的极值问题,利用面积长度方法和均值不等式证明了仿射映射为此两类极值问题的唯一解.该结果推广了相关文献的结果.     

调和γ-正规映射和调和γ-正规型映射

作为调和γ-Bloch映射和调和γ-Bloch型映射的推广,研究了调和γ-正规映射和调和γ-正规型映射,讨论了这2类调和映射的如下性质:仿射不变性、线性不变性、包含关系、与局部一致单叶调和映射的关系以及从属原则.     

无扭仿射Kac-Moody代数正部分的交换导子

设g是X_l~(1)型仿射Kac-Moody代数,X_l为A_l,D_l或E_l型,l≥3,n_+是g的正部分.n_+上的一个映射φ:n_+→n_+称为交换映射,如果对任意的x∈n_+,有[φ(x),x]=0.证明了n+上的导子是交换映射当且仅当它是零映射.     

n-赋范空间上的等距延拓问题

给出了n-赋范空间中保持单位距离映射的性质以及其与2共线、保持零距离的关系.推广了Benz定理,证明了n-赋范空间之间保持两个常数距离的映射必为仿射等距.     

具给定仿射曲率的仿射完备的超曲面

证明了李安民教授等于2000年构造的具给定仿射GaussKronecker曲率的超曲面一定是仿射完备这一猜测.     

投影相关自适应子空间分割

在构造仿射矩阵时,满足稀疏性就会降低其分组效应,反之,又不利于数据的选择.针对这些问题,提出投影相关自适应子空间分割方法.通过引入迹lasso,自适应地根据样本数据的相关性构造仿射矩阵,同时提取出有利于类别识别的特征.在6个基因表达数据上的实验结果表明,该方法优于现有子空间分割方法.     

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-