基于J2EE/UML的ERP动态建模研究

ERP(企业资源计划)是企业进行现代化管理的一个工具,介绍了企业资源计划动态建模的必要性,UML标准建模语言的主要模型视图及其特点,J2EE的体系结构和优点。然后提出一种结合J2EE/UML两者特点的建模方法,并且通过实例详细了J2EE/UML建模体系应用于ERP系统的建模过程和软件实现,最后展望了企业建模领域未来的研究方向。     

基于J2ME/J2EE移动ERP系统的研究与实现

随着通信技术的迅速发展,人们迫切希望能够方便的利用手持移动设备访问企业ERP系统.通过对J2ME 和J2EE 技术的研究, 建立了移动应用系统的基本框架模型,并通过此模型对实现移动ERP系统提出了解决方案.     

基于J2EE架构的设备能源管理的企业资源计划(ERP)系统研究

分析了J2EE的MVC多层体系结构与ERP系统的优点,提出了基于J2EE体系结构在设备能源管理上ERP系统的设想;阐述了设备能源的整个ERP系统中可靠的应用,在此基础上,提高软件的性能和增强可维护性,简化软件的开发难度,缩短了整个软件系统的开发周期。     

浅析基于J2EE的重组式ERP系统

首先从敏捷供应链管理的高度,以加速供应链上各种“流”以致提高企业工作效率为目标,导出了基于J2EE的新型ERP系统结构。然后,通过对客户关系管理系统(CRM)的设计举例,对系统加以分析并阐述采用这种体系结构所具有的优势。     

基于J2EE核心模式的组合Web框架研究

在研究多种J2EE Web框架和J2EE核心模式的基础上,提出了一种基于J2EE核心模式的组合Web框架--CWFBP(Composite Web Framework based on core J2EE Patterns)模型.框架采用分层体系架构,集成了开源的J2EE Web框架和持久层框架,并在表示层和业务层综合应用多种J2EE核心模式,实现了层次之间和业务层内部的松散耦合,提高了系统的可复用性和开放性.研究了N层计算模式、AJAX和正则表达式等在模型中的应用.采用CWFBP进行软件架构,设计实现了三峡--葛洲坝水利枢纽通航调度系统.系统运行实践表明了CWFBP的正确性和有效性.     

信息系统安全工程理论在ERP系统中的运用

随着ERP系统由原来仅在Intranet上部署发展到在Internet上部署,ERP系统所面临的威胁越来越多,用户的安全需求也越来越高。本文运用信息系统安全工程的相关理论,分析了J2EE架构下ERP系统的安全威胁,提出了增强系统安全性的设计方案和实施中要考虑的安全要素。     

J2EE平台下ERP系统纵横两维组件集成的实现

主要从新一代ERP系统的多层组件集成的需求出发,提出了在J2EE平台下开发ERP系统时的多组件纵向集成和多组件横向集成的实现方法。     

J2EE架构下网络选课系统的设计和实现

J2EE是一种利用Java2平台来简化多级企业解决方案的开发、部署和管理的体系结构，使得部署在J2EE平台上的多层应用能够实现高可用性、安全性、可扩展性和可靠性．对实际应用的J2EE分层结构进行了详细分析，给出一种J2EE架构下的多层应用模式。并通过网上选课系统的设计详细介绍了该模式下的具体开发方案.     

基于数据挖掘的煤炭企业ERP理论及应用研究

阐述了探索适合煤炭企业的ERP管理模式与管理方法及应用ERP系统的技术途径.采用基于J2EE及OOP方法搭建基于数据挖掘的煤炭企业ERP系统的数据仓库体系结构,研究煤炭企业ERP决策支持系统建模技术、实现技术、系统实施等;通过对煤炭企业各种数据深入分析,探索数据仓库和数据挖掘技术在ERP系统中的应用模式,从而提高煤炭企业ERP系统的决策功能,真正做到用数据挖掘等信息技术改造传统的煤炭企业,优化企业资源,提高决策分析水平,增强综合竞争能力,为企业带来显著的经济效益和社会效益.     

基于J2EE的软件虚拟实训系统的MVC架构实现

设计模式在当前的工程应用中越来越广泛,MVC是软件开发中的一种重要的设计模式,J2EE则是开发高端企业级应用的成熟技术体系。论文通过对J2EE企业计算平台和MVC设计模式进行简要的分析和讨论,构建了一个软件虚拟实训教学系统的应用框架,达到了视图、模型、控制的分层,成功实现了J2EE平台上的MVC架构。     

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.     

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.     

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.