基于构件的WebGIS

在分析WebGIS的主要技术的基础上，提出了基于构件的WebGIS模型，并详细描述了模型的各层设计思想和实现技术。模型以CORBA／Java为技术基础，结合OpenGIS规范，解决了空间地理信息的共享、互操作等问题。     

FODA方法在MIS可重用构件开发中的应用

领域工程是创建重用构件的活动,它强调对领域模型和体系结构系统的创建.领域分析是识别、捕捉、组织、分析和表示软件域中相关信息,确定软件的体系结构、框架和构件,以支持软件重用的软件工程过程,是解决软件重用的关键技术之一.介绍了由软件工程组织提出的FODA领域分析方法,对FODA方法在MIS系统可重用构件开发中的应用进行了研究.表明FODA方法是进行可重用构件开发的有效途径.     

面向KBS分布式知识发现平台的设计

采用Multi-Agent架构的非线性设计模式,研究KBS中领域知识的知识发现方法。给出了一种基于Multi-Agent的并行知识发现模型,并以分布式挖掘技术扩充现有知识发现模型;将该模型应用于KBS中领域知识发现中,设计了一种面向KBS分布式知识发现平台。分析结果表明,该设计方法是一种解决KBS分布式知识发现的可行方案。     

面向KBS分布式知识发现平台的设计

采用Multi-Agent架构的非线性设计模式,研究KBS中领域知识的知识发现方法.给出了一种基于Multi- Agent的并行知识发现模型,并以分布式挖掘技术扩充现有知识发现模型;将该模型应用于KBS中领域知识发现中,设计了一种面向KBS分布式知识发现平台.分析结果表明,该设计方法是一种解决KBS分布式知识发现的可行方案.     

领域MIS应用软件“工厂”化开发过程研究

在领域工程、基于构件的软件工程的基础上 ,提出了“以领域 MIS可重用资产为基础、以建造 MIS应用系统的软件体系结构为中心、以选择软件构件组装成系统为目标”的 MIS系统构件化开发过程模型 .该软件过程模型为MIS应用系统“工厂”化生产提供了可行的开发模式     

一个基于Java 3D和CORBA的协同设计工具

Java3D是在OpenGL和VRML基础上发展起来的一组应用编程接口，在此将它与CORBA结合起来，用于分布式程序编程中，以增强分布式异构环境下互操作作性，并给出了基于Java3D和CORBA的协同设计原型系统，并就协同设计所需解决的同步浏览，协同操作，冲突调解，数据访问提出了实现方法，特别对同步互操作俾了详细的论述，阐述了Java3D和CORBA在同步互操作中的结合方法，对ORB的运行机制也作了说明。     

基于软构件粒度的软件重用技术研究

基于软构件粒度的软件重用技术是软件工程的最新技术进展,从结构化与面向对象软件开发方法的比较出发,结合软构件的属性、分类、开发原则、应用条件和构件效能,详细讨论了软构件的度量、可理解性与可重用性之间的关系以及当前软构件技术发展过程存在的问题,重点分析了软构件粒度的分类及粒度大小对软构件的影响.对以软构件粒度为基础的软件开发具有重要意义。     

遗留软件系统的一种重构方法

遗留系统（Legacy系统）通常依赖不同概念结构。由于语义层的冲突，难以实现互操作，通过重建语义层对Legacy系统进行概念化封装，并通过语义转换规则，解决遗留系统之间的语义互操作问题，该方法是实现信息系统灵活重用与集成的有效途径。     

CORBA在分布式网管中的应用

分布式网管系统解决了现有的网管协议缺乏对异构分布式系统间互通和互操作的标准化的问题,本文根据CORBA的分布式特性提出了基于CORBA的分布式网络管理系统的体系结构,探讨了基于CORBA构建分布式网管系统的方法,以及目前最常用的SNMP／CORBA和CMIP／CORBA两种网关模式,从而说明分布式网管系统的优点。     

CORBA构件的分类及构件库研究

简要叙述了CORBA构件模型,采用基于刻面的分类方案对CORBA构件进行有效分类,并将CORBA构件以基于XML的构件表示形式存储于数据库中,使构件复用者在CORBA构件库中更准确地定位待检索构件。同时,为使复用者快速理解和选取检索到的构件,节约决策时间,提高复用准确度,将数据挖掘技术与构件库技术相结合,采用决策树分类算法对库中构件进行决策分析,最后通过实验验证了这种方法的有效性和可行性。     

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.     

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.     

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.     

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.