线性赋范空间上泛函列的一致连续性定理

定义了在线性赋范空间X上泛函序列{fn}强一致连续,弱一致连续和一致收敛的概念,得出了泛函序列{fn}强一致连续必弱一致连续;并证明了定义在线性赋范空间x上的泛函序列{fn}弱一致连续且又是一致收敛序列时,在X上必强一致连续;定义在线性赋范空间x的有界子集D上的强一致连续泛函序列{fn},若满足‖fn-f‖→（n→∞）,则序列是一致收敛的。     

赋准范空间上等度连续算子族的一致有界性

先给出赋β－范空间上有界可加算子的范数，然后讨论了非局部有界的赋准范空间上等度连续算子族的一致有界性问题，得出在一般赋准范空间上等度连续算子族一致有界性的几个结果，从而把共鸣定理由赋β-范空间推广到一般非局部有界的赋准范空间上。     

度量空间上泛函的一致连续性

定义了度量空间上泛函的一致连续性以及一致连续性的判定函数,研究了判定函数的性质,建立了判定函数和泛出一致连续的关系,利用判定函数给出了度量空间和次范整线性空间上泛函一致连续的一个充分必要条件,使得泛函一致连续性的判定变得简单。     

非标准包在构造空间的完备化中的应用

在饱和模型下,从一般的拓扑空间出发, 利用非标准包方法,将拓扑学中的理想元素构造出来,使其完备化,并给出3种常见空间的完备化构造方法.由赋范代数出发,给出内积代数的定义,构造赋范代数和内积代数的非标准包.     

赋广义Orlicz范数的Orlicz函数空间的一致凸性

利用Banach及经典Orlicz空间几何理论,研究赋广义Orlicz范数的Orlicz函数空间一致凸问题,得到了由右导函数为凸函数的N-函数生成的赋广义Orlicz范数的Orlicz函数空间一致凸的充要条件.     

取值于R~d空间上函数积分的非标准定义

目的用非标准分析的方法给出取值于Rd空间上函数积分的定义。方法在非标准扩大模型下,利用转换原理,通过给出取值于Rd空间上阶梯函数积分的非标准定义。结果用非标准分析的方法给出了取值于Rd空间上函数积分的非标准定义。在此基础上,给出取值于Rd空间上函数积分的另一种形式及其性质。结论取值于Rd空间上函数的积分与取值于Banach空间函数的积分具有相同的性质,充分体现了非标准分析方法简洁直观的特点。     

非阿基米德赋p范空间中等距映射的刻画

本文给出了非阿基米德赋p范空间以及赋(2,p)范空间(0相似文献   

遥远点的若干应用

目的 用非标准的方法给出拓扑空间中一些重要概念的非标准刻画.方法 在非标准扩大模型下,利用转换原理,通过定义非标准空间中的遥远点给出拓扑空间中一些重要概念的非标准刻画.结果 给出了具有紧支撑函数、在无穷远处为零的函数以及完备一致空间的非标准特征,并讨论了它们的一些基本性质.结论 这些刻画充分体现了非标准方法简洁、直观的特性.     

关于有限维向量值函数一些注记

首先给出取值于有限维向量空间上的向量值函数的表示形式和有限维向量空间的一种范数.然后利用有限维向量空间上任意两种范数都是等价的性质,讨论了取值于有限维赋范线性空间上的向量值函数的连续、可微、积分及解析的等价关系和表示形式.最后证明了柯西定理、柯西积分公式、高阶导数公式及其表示形式和解析的向量值函数的无穷可微性.     

一类可赋准范空间的随机共轭空间

1 随机赋范空间上的随机线性泛函记D~+={F:R~1→[0,1]|F非降左连续且F(0)=0,supF(x)=1};K表示数域R~1或C~1;(Ω,σ,μ)表示概率空间;L(Ω,K)表定义在Ω上α.s有限的K-值随机变量全体;L~+(Ω)表Ω上α.s有限的非负实值随机变量全体.关于概率赋范空间,随机赋范空间的定义及拓扑等述语均与文[2,3]中约定同.     

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.     

A computer generator for randomly layered structures

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

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。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

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.     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.