基于PDM技术的制造业集成框架研究

指出了ＣＩＭＳ从信息集成向过程集成发展的必然性，分析了“过程集成”的内涵以及对制造业发展的影响。以上海飞机制造厂需求为背景，探讨了利用产品数据管理（ＰＤＭ）技术构成的制造业集成框架的体系结构，解析了该框架的特点。阐述了基于ＰＤＭ技术集成框架发展中集成框架与集成平台的关系，异地设计、异地制造与并行工程的关系，ＰＤＭ技术与ＰＤＭ软件的关系以及以往ＣＩＭＳ中与ＰＤＭ技术中“集成”概念的关系。提出了ＰＤＭ技术应用过程中急需解决的问题。     

基于PDM的集成化CAPP系统的研究和开发

ＰＤＭ技术是在数据库基础上发展起来的一门管理所有与产品相关的信息及过程的新技术,越来越多的企业采用ＰＤＭ作为ＣＩＭＳ工程集成框架．ＣＡＰＰ是ＣＩＭＳ中的一大关键技术,它的发展直接关系到ＣＩＭＳ的集成效果,因此研究和开发在ＰＤＭ集成框架上的工艺辅助设计及管理系统显得非常迫切．本文介绍在美国ＥＤＳ公司的ＰＤＭ产品ＩＭＡＮ集成框架上开发的ＳＧＷＣＡＰＰ系统,进一步研究了在ＰＤＭ框架上面向产品对象的集成化ＣＡＰＰ系统的工艺设计方法和集成管理的实现机制     

CIMS中集成MIS的设计及实现

本文基于ＳＯＩＳ（单项业务信息系统），从工程应用角度出发论述了开发集成ＭＩＳ（管理信息系统）的原理、体系结构及工程实现方法，如面向对象的问题求解与程序设计方法、混合编程与变参（实参、形参）策略等．利用文中介绍的方法设计的集成ＭＩＳ具有与ＣＩＭＳ良好的适应性和较强的工业应用价值．     

巨微CIMS体系结构研究

计算机集成制造系统是国家“８６３”计划自动化领域的主题之一。文中对批流程型ＣＩＭＳ系统的总体结构进行了讨论,在此基础上给出了巨微生物工程有限公司（以下简称巨微）ＣＩＭＳ的应用体系结构及支撑结构,并分析了开发流程型ＣＩＭＳ的关键技术。     

服装计算机集成制造系统的信息集成方案

服装ＣＩＭＳ实现的关键在于信息集成．本文提出了一种服装ＣＩＭＳ的信息集成设计方案，具体地阐述了服装生产全过程的规划与控制的信息集成，以及服装ＣＩＭＳ各子系统信息集成的方法，同时还介绍了服装ＣＩＭＳ信息集成的核心支撑子系统──数据库系统的设计．     

冶金企业CIMS体系结构的研究

冶金企业ＣＩＭＳ体系结构的研究唐立新，王梦光在分析冶金企业生产工艺和生产管理的特点基础上，指出冶金ＣＩＭ的特点，并提出了冶金ＣＩＭＳ体系结构，最后运用集中管理／分散控制的分级控制策略设计了体系结构中的逻辑结构和物理结构．冶金企业CIMS体系结构的研究@唐?..     

液压元件CAD／CAPP／MIS集成技术研究

数据集成技术是ＣＩＭＳ的关键,本文给出了液压元件ＣＡＤ／ＣＡＰＰ／ＭＩＳ集成框架,提出了基于特征的产品定义模型及造型方法,并讨论了数据管理中的数据库技术。     

CIMS中的集成支撑技术

ＣＩＭＳ中的集成支撑技术董逸生集成是ＣＩＭＳ的灵魂，ＣＩＭＳ正是通过集成才使一个制造业中的各种过程有机地连接起来，从而增强了企业的整体性及灵活应变能力。系统集成的理想目标是单一系统映像（ＳＳＩ－ＳｉｎｇｌｅＳｙｓｔｅｍＩｍａｇｅ），即所有系统成分间的...     

流程行业CIMS工程信息集成方法研究

从某厂ＣＩＭＳ工程实际出发,分析了流程行业信息集成的特点,制定了总体设计思路和实施方案;在给出该厂ＣＩＭＳ的体系框架和支撑结构环境下,着重讨论了信息集成方案的实现。     

CIMS环境下的信息集成

ＣＩＭＳ 实施的关键是集成。该文以国家８６３／ＣＩＭＳ 应用示范工程ＹＨＣＩＭＳ的实施为背景,根据企业的特点和内外部环境,通过ＣＩＭＳ环境下系统信息流的分析,阐述了ＹＨＣＩＭＳ信息集成的内容和相应的集成方法。     

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.