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1.
通过《哈尔滨中央商城计算机管理信息系统》的设计与实现,介绍了大中型零售商业企业计算机CMIS的设计思想、数据的组织方法及计算机网络系统的结构体系,并论述了分布式数据库系统ORACLE7及最新网络技术Client/Server结构的应用。  相似文献   

2.
计算机集成控制系统(CIMS)和ISO9000系列标准是现今世界两种先进的生产管理方式。本文在CIMS环境下,系统地分析了企业质量体系计算机辅助实施系统(ISO9000-CAQS)的地位,作用,特点,设计思想,功能结构以及内外部信息集成。在此基础上,给出了在Windows平台上设计,开发统计过程控制系统(ISO9000-CAQS-SPC)的实例。  相似文献   

3.
面向CIMS的CAx信息管理与集成系统的研究   总被引:7,自引:0,他引:7  
结合制造业实施CIMS的整体设计要求,提出了基于产品数据管理(PDM)技术与STEP集成技术设计新型CAx信息管理与集成系统(CAx-IMIS)的基本构架,全面分析了这一系统应具备的基本功能、Client/Server结构与信息模型,并根据不同建模方法与技术分别给出了面向对象的产品数据管理信息模型与基于EXPRESS的零件特征信息模型。探讨了在系统实现中应解决的若干关键技术,如分布式对象管理框架、基于零件的STEP信息集成以及与信息管理系统(MIS)、车间管理与控制系统的集成接口等。  相似文献   

4.
论述了基于网络的管理信息系统中分布式数据库的概念、特点和设计原理,并结合旅游管理信息系统研究分布式数据库的具体设计与实施.  相似文献   

5.
文章综述了国内外MIS的研究和实施状况,指出了国内MIS研究要服合国情化,用户化和适时化,说明了MIS研究与计算机技术发展的密切关系。设计了学生学籍MIS。  相似文献   

6.
CIMS环境下的信息集成   总被引:6,自引:0,他引:6  
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。  相似文献   

7.
一类复杂系统开发及递阶控制体系实例研究   总被引:2,自引:0,他引:2  
在对一类典型的复杂系统-大型订单驱动型离散制造企业的生产经营特点进行分析的基础上,提出了一种针对该生产经营类型的计算机集成制造系统(CIMS)总体结构,同时根据开发方和用户方的具体特点,讨论了如何应用复杂系统开发方法进行此类项目的组织实施,并且设计了其递阶控制结构。该方法在“上海锅炉厂CIMS可行性论证及总体规划”项目的研究和实施中得到了应用。  相似文献   

8.
根据MIS系统建设的需要,分析了MIS系统支撑环境的构成成分和配置要求,为MIS系统的设计提供了依据  相似文献   

9.
CIMS(计算机集成制造系统)已实现了信息集成,目前正朝着经营(功能)集成和系统集成的方向发展。从CIMS实施中存在的问题出发,对决定CIMS实施成败的关键性因素进行分析,并着重说明企业软环境改善的不容忽视  相似文献   

10.
本篇叙述FMIS(FinacialManagingInformationSystem)的系统分析、数据流程、库结构设计、程序模块设计、屏幕格式设计,并给出程序设计框图与实施结果。本系统反映了微机财务管理信息系统设计的全过程。  相似文献   

11.
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.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
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.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
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。  相似文献   

20.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

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