工程设计系统信息集成技术的研究与应用

产品信息的集成和共享利用是CIMS的核心技术。在CAD／CAM系统中实现信息集成的关键技术是产品的特征建模技术和信息交换技术。本文以一个通过了国家验收的CIMS应用工程（ZMJ－CIMS）为实例,介绍CIMS应用工程中工程设计系统信息集成的方法和技术方案要点。     

CIMS与自动化岛

本文介绍了企业中工业自动化发展的趋势和CIMS(计算机集成制造系统)信息集成的关键,以及北京第一机床厂CIMS信息集成的策略和做法     

基于面向对象方法的CIMS信息集成建模框架

根据CIMS信息集成的研究现状，采用面向对象方法，以企业信息集成模型为基础，通过继承、封装的思想，建立了一个通用的CIMS信息集成参考框架，作为各企业CIMS信息集成系统的实施依据。该框架建立在信息共享的基础上，便于功能集成的实现及CIMS整个系统的构造。而且基于此模型开发的系统具有一定的可重用性，开发周期也可明显缩短。     

集成CIMS的电子商务平台设计

分析了集成CIMS的电子商务平台的研究意义,讨论了以市场信息为桥梁,建立一个集成CIMS的电子商务平台的可行性.在此基础上,分别对平台的3种接入者即客户、电子商务服务商和企业内部CIMS系统给出了各自的集成方法.最后,提出了一种用J2EE技术结合WAF、Struts框架来实现上述3种接入者集成的电子商务平台的设计方案.     

基于面向对象方法的CIMS信息集成模型

信息集成是CIMS的关键，是功能集成与其他集成（网络等硬件集成除外）的基础，由于CIMS中涉及的信息种类繁多、结构复杂、来源与用途不一等特点，建立一个通用的信息集成模型成为需要。以ISO（国际标准化组织）提出的企业模型为基础，采用面向对象方法，将信息划分成不同的类，并定义不同的对象，同时描述其属性与结构关系，通过继承、封装的思想，实现集成的目的，从而建立企业信息集成模型，作为各企业CIMS信息集成系统的实施依据，该模型建立在信息共享的基础上，便于功能集成的实现及CIMS整个系统的构造，基于此模型开发的系统可反复重用，开发周期也可明显缩短。     

烟草行业CIMS集成化支撑保障体系

分析了烟草行业信息化建设当前存在的问题,提出采用CIMS技术实现烟草行业现代集约化管理.基于烟草行业CIMS的应用系统集成模式构建行业CIMS集成支撑保障体系,它包括行业集成支撑体系和行业集成保障体系.行业集成支撑体系负责行业CIMS应用系统的数据集成、应用服务集成和业务过程集成,行业集成保障体系负责为行业CIMS应用系统集成提供标准化体系与安全体系等保障机制,保证系统的安全高效率运行.实际应用扩充了CIMS内涵,将其集成范围从传统的制造企业扩展到工商贸,直至烟草整个行业,行业集成数据中心提供标准化管理体系、信息安全管理体系与行业集成技术支撑体系三大类功能,是行业集成的支撑保障体系,为烟草行业各级部门的集约化管理服务.     

CIMS环境下的CAPP发展情况

我国CIMS(包括前期的计算机集成制造系统和后期的现代集成制造系统)的研究,开发和利用,走了一条与国外相比有相当创新的发展道路,20世纪80年代以来,随着机械制造业向CIMS 的发展,CAPP在CAD,CAM中起到纽带作用.CAPP必须能直接从CAD 模块中获取零件的几何信息,材料信息,工艺信息等,以代替人工交互的零件信息输入,CAPP的输出是CAM所需的各种信息,在CIMS环境下,CAPP接受来自CAD的几何拓扑,材料信息以及精度,粗糙度等工艺信息,为满足并行产品设计的要求.     

在应用中发展CIMS工程

北京第一机床厂CIMS工程,作为国家863/CIMS应用于工厂的突破口项目,于1994年6月通过验收,初步建成了集成工程设计分系统、管理信息分系统、制造自动化分系统,并从信息流与物流的集成上打通了一条加工箱体的柔性制造线。该项目在CIMS信息集成上达到国际领     

面向CIMS企业的应用集成平台体系结构

企业的CIMS集成已经从单纯的信息集成向过程集成和企业间的集成发展，因此迫切需要研究支持面向CIMS企业集成的软件支持系统。提出了一个面向CIMS企业集成的应用集成平台系统CEIPS，它是一个三层结构，即应用系统层、组件系统层和数据通信层。文中对CEIPS的体系结构进行了详细探讨，并给出了CEIPS的初步开发设想。     

计算机集成制造系统（CIMS）集成原理研究

通过对MRPⅡ工作原理及其基于集成功能的特点分析,探讨了以MRPⅡ为核心集现代管理技术,计算机与网络技术和生产工艺于一体具有先进管理思想和方法的计算机集成制造系统CIMS的集成原理,并以国家863／CIMS示范应用工程YH－CIMS为实例,分析了CIMS环境下MRPⅡ与DCS的信息集成原理。     

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.     

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

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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