基于GIS的燃气管道管理决策支持系统研究

本文基于GIS技术,在分析智能决策支持系统（IntelligentDecisionSupport System,IDSS）的体系结构基础上,构建了燃气管道管理决策支持系统。设计了管道图层数据库,分析了管道泄漏定位方法和重大事故后果模拟模型等,以及建立了管道管理相关知识库。构建了一个以数据库、方法库、模型库、知识库为核心的燃气管道风险管理IDSS的构架,实际工作中表明此方案切实可行。     

财务决策支持系统的结构设计及实现方法

论述了决策支持系统的概念和发展现状，分析了决策支持系统的基本结构，探讨了财务决策支持系统中问题处理系统、数据库系统、模型库系统、方法库系统、知识库系统、图形库系统、人机会话系统等的工作原理和实现技术。在微机上初步研制实现了财务决策支持系统，并进行了试用运行，效果良好     

银行信贷决策支持系统的建立

针对信贷业务的特点以及对管理工作的要求，提出了信贷决策支持系统的基本设想．该系统以数据库、模型库、方法库和知识库为基本框架，应用平台选用Lotus notes，使系统具有安全性高、界面友好，易于操作等特点．由于Lotus notes是银行办公系统的基础平台，故系统实施容易，可节约大量资金，还可快速准确地完成预测分析，为领导决策提供有用信息．     

ArcSDE在大庆外围油气远景综合评价系统中的应用与实现

Oracle和ArcGIS在大庆外围油气远景综合评价系统中分别作为基础数据库和应用开发平台,二者之间的空间数据及属性数据的透明访问和无缝连接是必须解决的关键问题.而ArcSDE是目前全世界应用最广的空间数据引擎中间件,正是解决这一问题的有力武器.介绍了ArcSDE在大庆外围油气远景综合评价系统中的应用方法与具体实现,实践证明ArcSDE在整个系统中起到了举足轻重的作用.     

车辆性能分析决策支持系统模型库设计

模型库的研究与设计一直是决策支持系统(DSS)领域的难点与热点问题。文章结合面向对象的设计方法研究实现了一种新的模型库架构;在模型库中将方法库与数据库有效的结合起来,实现了各种数值分析算法的通用化管理、维护,将其应用到车辆性能分析及配件选型DSS中,在车辆性能的自动化分析上取得了较好的效果。     

小麦病虫害治理决策支持系统

本文综合运用了决策支持系统与专家系统的理论与方法。系统由知识库系统、数据库系统、模型库系统、方法库系统组成，具备病虫害诊断识别、预测、防治以及经济核算等功能，并具有智能性、实用性、操作性等特点。     

教育管理决策支持系统

讨论了教育管理决策支持系统的构造方法和设计思想,指出教育管理决策支持乐统由数据库、模型库、方法库和人机对话系统构成,并着重介绍系统的核心部分一模型的选取和实现,最后指出教育管理决策支持系统是DSS技术和教育软件的一个发展方向。     

冲压成型过程仿真汇场理论支持系统

基于新提出的冲压成型过程仿真汇场理论,建立了汇场理论支持系统,它含有控制程序、简化的模型库、方法库和数据库等4大部分,是一个模型驱动系统。运行该系统,对L形件压延过程进行仿真,得到了毛料外形,应变分布及压延过程图象。     

通用项目评估决策支持系统模型

为了提高项目评价的科学性、有效性、及时性,结合当前项目评估工作要求及企业所面临的内外部环境,给出了研制项目评估决策支持系统应遵循的原则,在此原则的基础上构造了通用项目评估决策支持系统的总体结构模型,并进行了该系统的分析和设计.对系统应具有的功能以及数据库、模型库及方法库的设计进行了详细介绍,在实际中进行了成功应用.     

大坝安全分析和评估资源管理系统

为实现对大坝安全原型观测资料、分析方法以及分析和评估所需的文本、语音、图形和图像等成果的科学管理,开发了一套大坝安全分析和评估资源管理系统.该系统由总控、工程数据库、知识库、模型库和图库等组成,采用数据层、服务层、表示层3层工作模式,应用元数据库技术实现了多个数据库的集成,采用多级链接式方法进行了模型库中大量程序的存储、调用等.建立了一个动态再生系统平台,提高了大坝安全分析和评估资源管理系统的开放性,有利于系统的更新和发展.     

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

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.     

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.     

Design and analysis of generic LBS application developing platform

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

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.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

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.     

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.