(sum from i=1to∞ ⊕X_i)_p的一些性质

在本文中,我们给出如下结论:为弱一致凸的当且仅当诸都是弱一致凸的;为一致Gateaux可微的当且仅当每个X_i(i=1,2,…)都是一致Gateaux可微的。     

置换空间PXXn中的弱*序列紧性

主要给出了置换空间PXXn中弱*序列紧性的提升结果:设X是自反Banach空间,则PXXn具有(w)性质当且仅当每个Xn(n=1,2,...)均有(w)性质,它是[7]中Lp(Xn)(1≤p＜∞)等相应结果的推广.     

置换空间PXXn中的Radon-Nikodym性质

主要给出了如下结论:设X是具有有界完备超正交基的Banach空间,则置换空间PXXn具有Radon-Nikodym性质当且仅当Xn(n=1,2,…)具有Radon-Nikodym性质,从而推广了文献[1]的结果.     

Banach空间一些凸性等价的条件

证明了若Ｘ是自反的强光滑空间，则Ｘ是（ＨＲ）当且仅当Ｘ是局部的一致凸的；若Ｂａｎａｃｈ空间Ｘ具有（）性质，则Ｘ是强凸的当且仅当Ｘ是局部的一致凸的     

乘积系统的拓扑遍历性

记f -=f1×f2×…×fn,N -n={1,2,…,n},=X1×X2×…×Xn,本文给出了f -是拓扑遍历的两个充要条件.若fi有POTP,Xi是连通的,i∈N -n,则f -是拓扑遍历的27个等价条件被给出.讨论了f -是拓扑遍历的一些充分条件和必要条件.设fi∈C0(Xi,Xi),Xi为紧度量空间,i∈N -n,证明了:①若f -是拓扑遍历的,则f ~1×…×f ～n∶ M(X1)×…×M(Xn)→M(X1)×…×M(Xn)是拓扑遍历的.②设(X∞(j), f∞(j))为由{Xi(j),gi(j), fi(j)}∞i=1生成的逆极限系统,j∈N -n,则f∞(1)×…×f∞(n)为拓扑遍历的当且仅当∏nj=1fi(j)(i=1,2,…)均为拓扑遍历的.③若存在j∈N -n,使得对t∈N -n且t≠j, ft均为拓扑混合的,则f -是拓扑遍历的当且仅当fj是拓扑遍历的.     

乘积系统（X1×X2×…×Xn，f1×f2×…×fn）的拓扑遍历性

记^-f=f1×f2×…×fn,^-Nn={1,2,…,n},^-X=X1×X2×…×Xn,本文给出了^-f是拓扑遍历的两个充要条件。若fi有POTP,Xi是连通的,i∈^-Nn,则^-f是拓扑遍历的27个等价条件被给出。讨论了^-f是拓扑遍历的一些充分条件和必要条件。设fi∈C^0（Xi,Xi）,Xi为紧度量空间,i∈^-Nn,证明了：①若^-f是拓扑遍历的,则^-f1,×…×^-fn：M（X1）×…×M（Xn）→M（X1）×…×M（Xn）是拓扑遍历的。②设（X∞^（j）,f∞^（j））为由{Xi^（j）,gi^（j）,fi^（j）}i=1^∞,生成的逆极限系统,j∈^Nn,则f∞^（1）×…×f∞^（n）为拓扑遍历的当且仅当^n∏j=1 fi^（j）（i=1,2,…）均为拓扑遍历的。③若存在j∈^Nn,使得对t∈^Nn且t≠j,fi均为拓扑混合的,则^-f是拓扑遍历的当且仅当fj是拓扑遍历的。     

强严格凸和中点局部一致凸

证明了Ｂａｎａｃｈ空间Ｘ是局部一致非方的当且仅当对任意ｘ∈Ｓ（Ｘ）,都有ｄＸ（ｘ,１）＞０;Ｘ是强严格凸的当且仅当对任意ｘ∈Ｓ（Ｘ）,ｙｎ∈Ｓ（Ｘ）和α∈Ｒ,若‖ｘ＋αｙｎ‖→１和‖ｘ－αｙｎ‖→１,则α＝０;并证明了Ｘ是强严格凸的充要条件为Ｘ是中点局部一致凸的     

Banach空间中的△── 一致凸性

设X是Banach空间，A是X的有界集，X（A）表示A的非紧性球测度，△x（ε）=inf{1—inf｛||x||：x∈A}：ABX是闭凸集且X（A）}，若对有△X（ε）＞0，则称X为△一致凸的，本文主要证明了X为近一致凸的当且仅当X是△一致凸的。     

置换空间PXXn中几种凸性的提升

主要研究强凸、非常凸等性质从Ｂａｎａｃｈ空间Ｘｎ到ＰＸＸｎ的提升问题,证明了当Ｘ是局部一致凸空间时,空间ＰＸＸｎ是强凸（非常凸或近强凸）当且仅当每个Ｘｎ都是强凸（非常凸或近强凸）。     

接近一致光滑和局部接近一致凸的Banach空间

给出了Ｂａｎａｃｈ空间Ｘ是接近一致光滑的一个很简明的充要条件，证明了Ｂａｎａｃｈ空间Ｘ是局部一致凸的当且仅当Ｘ是局部接近一致凸，且Ｘ是严格凸，并具有（ＷＭ）性质。     

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.     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~