基于组件技术的信息系统设计与实现

介绍了基于组件开发(CBD)的概念,提出了基于组件的信息系统开发过程———CBSIDPM.对CBSIDPM中关键部分“信息系统应用组件集ISACS”进行了层次分析、功能部件分解分析,把ISACS归纳为9个组件,并运用面向对象的方法对这9个组件进行了设计.以集成化网络办公应用开发平台Netcase Anywhere为开发集成平台,实现了ISACS,形成了一个基于Netcase的信息系统应用组件集NBISACS,利用该组件集可以大大提高信息系统的开发效率.     

组件式GIS技术的研究与应用

组件式GIS是面向对象技术和组件式软件在GIS开发中的应用。本文阐述了GIS的发展历程,分析总结了组件式GIS的技术特点。同时介绍了ESRI公司的新一代GIS组件库——ArcGIS,并在Visual C＋＋6．0平台下结合ArcGIS Engine实现了地图图层的删除操作等功能。     

可复用信息修改组件的实现

为了提高软件设计的可复用性,使软件系统的快速开发成为可能。文章通过使用.net技术,设计并实现了一个信息修改组件。该组件使用了通用的数据库操作类,实现了表单的自动化生成及自动化修改,可以在基于.NET平台的信息管理系统开发中重复使用,为信息管理系统的快速开发提供了有力的支持。同时,文中对该组件的设计思路及实现过程均进行了比较详细的介绍,为其它类似组件的实现提供了一个参考。并且这一组件被用到精品课的网站系统建设及课程建设上,结果表明了该方法的有效性。     

基于Android移动平台的物流信息管理系统设计

将Android移动智能设备平台的无线移动访问和电子地图等功能应用于物流信息管理系统中,提出了一种基于Android移动设备平台的规划导航路径算法.该物流信息管理系统能实现物流信息的采集、存储、传输、识别、跟踪和查询等功能,实现了对车辆和货物流动过程的控制,提高了物流效率,降低了物流成本.     

基于ArcGIS Engine的海洋倾倒区管理分析系统的设计

介绍了以.net2.0为开发平台,利用ArcGIS Engine9.2组件库,开发海洋倾倒区管理与分析系统的总体设计、关键技术和主要步骤.该系统在具备了对海洋倾倒区查询、分析的基础上,实现了基于GIS技术的可视化管理,为海洋环境管理部门对海洋倾废区使用情况的管理和决策提供可靠的决策支持.     

数字校园地理信息服务系统设计与实现

阐述了数字校园的基本概念及组成;描述了基于Google SketchUp和ArcGIS Scene制作三维虚拟校园场景的基本步骤;结合三维建模技术、空间数据库技术、组件技术,介绍了基于Visual Studio.Net（C#）＋ArcGIS Engine平台实现北京师范大学地理信息服务系统的设计与开发的方法。     

基于XML信息系统开发平台的设计与实现

为解决信息系统开发过程中普遍存在的开发模式不规范、系统功能扩展困难、系统集成不方便的问题,在分析了SharpDevelop软件的基础上,提出了一种基于XML(extensible Markup Language)的信息系统开发平台,用于构建开放、灵活、可扩展的信息系统.重点论述了系统核心层的设计,同时阐述了平台的架构设计、实现原理及应用.该平台建立在统一的AddIn树上,通过同一个接口,定制任何功能,且具有扩展方便、部署容易特点.该平台为开发人员提供了一套信息系统开发和表现业务逻辑的功能组件,规范和简化了开发过程,提高了开发效率.     

基于J2ME的手机游戏开发与实现

随着Java技术的不断发展,手机等移动设备已经成为新的开发平台,在这些平台上使用J2ME和MIDP进行游戏开发已越来越受到人们的关注.首先介绍了J2ME的体系结构和主要功能,然后结合一个游戏的开发实例,详细描述了其开发过程.     

基于FLEX技术的台风灾害数据时空可视化表达

台风是世界上破坏性极大的自然灾害之一。福建省所处的地区台风灾害发生频繁,是中国遭受台风影响最严重的省份之一。本文基于ArcGIS Server、Flex技术,对台风灾害数据信息时空可视化显示平台的建设进行了探讨。通过分析ArcGIS Server、Flex及其特点,进而对平台建设的总体方案进行了设计,提出了该平台建设的软硬件环境,确定了平台的总体结构和所要完成的主要功能。在Flex builder3、visual studio2008的开发环境下,基于Flex、ArcGIS Server构建了台风灾害信息显示平台,包括地图数据和台风数据的组织和管理、地图服务的发布与管理、网站的开发实现。该平台为更好地表达台风灾害数据信息提供了有效手段。     

基于ArcGIS Engine的专题图渲染设计与实现

ArcGIS Engine是ArcGIS9新推出的嵌入式组件库。本文简要介绍了ArcGISEngine的有关技术和.NET技术,利用C#语言和ArcGIS Engine组件开发了一个专门用于专题图渲染的系统,阐述了系统的设计流程和部分主要功能的实现。     

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.