Quantale代数核映射及其扩张

应用Quantale和Quantale模理论引入Quantale代数核映射的概念, 给出Quantale代数核映射的若干性质, 并讨论Quantale代数核映射与Quantale代数同余之间的关系, 得到了Quantale代数核映射的扩张定理.     

模糊Quantale上的模糊同余关系及其同构定理

在模糊Quantale上引入模糊同余关系的概念,证明了模糊Quantale上的模糊同余关系与模糊核映射是一一对应的,而且模糊同余关系之集模糊序同构于该模糊Quantale上的模糊核映射之集.基于模糊同余关系引入商模糊Quantale的概念,证明了任一模糊Quantale同余关系诱导的模糊Quantale商与基于该模糊同余关系的商模糊Quantale是同构的.     

Quantale模的余核映射及Quantale上的对偶双重模

讨论了左Quantale模的余核映射及其相应性质,并给出了子Quantale模与Quantale模的余核映射之间的一一对应,最后讨论了Quantale上的对偶双重模及其相关性质.     

Quantale中的L-模糊滤子及其相关性质

基于完备格L,在Quantale中引入了L-模糊滤子的概念,并研究了L-模糊滤子的基本性质.在L是闭集格的条件下,得到了Quantale中的L-模糊滤子的等价刻画;在L是空间式Frame且Q是幂等左半可换Quantale的条件下,证明了LQ上的生成滤子映射是Quantale核映射,进而全体L-模糊滤子构成的Quantale FilL(Q)是LQ的幂等的商Quantale;在Quantale中定义了L-模糊滤子拓扑,并得到了Quantale同态关于相应的L-模糊滤子拓扑连续的结论.     

模糊Quantale范畴的性质

引入了模糊Quantale的概念,证明了模糊Quantale范畴同构于L-代数范畴,于是从范畴论的角度说明L-代数也可以看成是Quantale的模糊化结构;给出了模糊Quantale范畴中的极限的具体结构,同时证明了该范畴是完备范畴;给出模糊Quantale范畴中逆系统的逆极限结构,引入了两个逆系统之间映射的定义,由此导出两个逆系统的逆极限之间的极限映射.     

格环上的Fuzzy同余关系

给出了格环上Fuzzy同余关系的定义,研究了它的若干性质,证明了格环上的全体Fuzzy同余关系关于Fuzzy集合的包含关系构成一个模格,并利用Fuzzy同余类给出了Fuzzy同余商格环的定义及其同态、同构的若干性质。     

模糊完备格上的模糊同余关系

在模糊完备格中引入模糊完备格同余关系的概念,讨论了模糊完备格同余与模糊闭包算子之间的关系.证明了一个模糊完备格上的模糊同余关系之集构成的模糊偏序集模糊序同构于其上的模糊闭包算子之集构成的模糊偏序集.给出了模糊完备格同余的商的概念,证明了任一模糊完备格满同态的像都模糊序同构于由该模糊完备格同态所诱导的同余关系的商.     

构形和拟阵的同构映射及关于超可解的几个性质

给出了中心超平面构形相交半序集及与其对应的简单拟阵平坦格的同构映射的对应关系,证明了这个映射若限制在模元组成的集合上,也是同构映射,且给出相交半序集和平坦格的模元秩函数之间的关系。另外,还讨论了关于超可解的几个性质。     

Quantale模范畴的良幂性及其定向极限

本文首先证明了Quantale模范畴有交且是平衡范畴;其次得到了Quantale模上的核(余核)映射与其在Quantale模范畴中的商(子)对象是一一对应的,从而证明了Quantale模范畴是极端余良幂的和极端良幂的;最后,讨论了Quantale模范畴的定向极限,并给出具体结构.     

Quantale上的Localic核与Localic余核映射

 研究了Quantale与单位Quantale Q［e］上的Localic核与Localic余核映射。证明了Quantale Q上的Localic核映射可以惟一地扩张为Q［e］上的Localic核映射,双侧的可换Quantale存在最大的Localic子Quantale。 再将以上结论应用于研究Quantale Q上的最大的Localic余核映射到Q［e］的扩张,给出了Q上的最大的Localic余核映射到Q［e］的扩张的所有形式,并且证明了Q［e］有最大Localic子Quantale当且仅当Q是平凡Quantale。     

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).     

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.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.