基于IP技术的矿用智能配电装置设计

针对矿用配电装置呈现智能化、网络化的发展趋势,分析了基于IP技术的矿用智能配电装置体系结构。通过设计由虚拟终端控制模块、通信模块、监控应用模块、嵌入式Web服务器模块以及辅助功能模块组成的系统及功能软件,在矿山配电装置上实现了基于IP技术的嵌入式Web服务,为实现矿山配电系统测、控、管一体化作了有益探索。     

基于公共信息模型的分布式系统业务管理

为了管理Web服务所依赖的底层资源，提出了不同体系结构管理集成的通用业务管理机制．该机制将业务管理的服务级协定(SLA)监视过程分解成配置服务、测量服务、条件评估服务和管理服务，并给出实现服务的最佳方案．建立了SLA参数与资源度量的映射，将SLA从Web服务环境配置到传统管理构架的公共信息模型对象管理器(CIMOM)，并将CIMOM的测量数据传回给Web服务，达到2种体系结构间管理的互操作性．通过主动资源代理，自觉请求检索新度量和计算SLA参数，无需外部触发，有效降低了系统的开销．仿真实验表明，该机制可提高分布式系统的业务监控能力。     

基于Web的网格监控系统研究

网格监控是网格管理和网格优化的核心．本文提出了基于Web的网格监控系统——GMSWeb．该系统采用浏览器／服务器（B／S）模式来构建网格监控系统,通过友好的浏览器界面实现网格资源网格环境中分布式、大规模、动态、异构的计算及存储资源的各种参数的监视和控制．GMSWeb底层采用生产者／消费者模式和SOA架构实现了对网格环境下各类资源的订阅发布,显示层对中国教育网格平台CGSP中资源、网格服务、网格用户、网格作业、网络状态等信息的可视化监控．     

基于Struts框架的人事管理系统表现层设计与实现

基于B/S的多层Web体系结构正处于不断完善之中,现在已成为Web应用开发的主流。但是在这种多层Web体系结构技术的设计中,普遍存在着程序可重用程度低、维护工作繁琐、应变能力较弱等不足。针对企业管理的重要分支——人事管理,通过Struts框架设计的人事管理系统,实现了功能模块和显示模块的分离,并提高了应用系统的可维护性、可扩展性、可移植性以及组件的可复用性,从而解决了上述B/S体系结构存在的问题。     

家居智能Web 服务的SOA 框架

为增强智能家居的个性化与智能化水平, 提出由资源层、适配层以及感知应用层组成的智能家居体系结构。建立了家居设备操控的原子Web 服务, 并基于Web 服务组合形成家居智能的SOA(Service-OrientedArchitecture)框架。实验结果表明, 该方法可对源于不同智能家居规范及不同组网模式中的设备统一管理和操控, 可为智能服务开发商与家居设备供应商构建协作平台, 降低双方数据交互的难度, 从而在自身领域内更好地发展智能家居服务。     

基于ARM-3S的工程机械远程监控系统设计

为了满足工程机械智能化发展中对稳定、可靠的工程机械远程监控系统的迫切需求,设计一种机载前端嵌入式监控系统.该系统以S3C2410X处理器为核心.通过扩展MOTOROLA无线通讯模块G24以及U-BLOXGPS定位模块LEA-5S、采用CAN总线技术并与远程监控中心通信.该监控系统既可以实现数据传输、工程机械的定位,也可...     

语义Web的智能推理技术分析

第三代网络——语义Web采用结构化的语言、多层叠代的塔形体系逐层实现了Web内容的语义性,使网络信息资源能为机器所理解,从而自动提供网络服务。智能推理是实现Web语义性、智能性的关键技术。文章介绍语义Web体系结构,说明各层在实现Web语义中的作用,分析如何实现Web的智能推理、智能推理技术的现状及其局限性。根据本体层和逻辑层现有推理语言,结合人工智能技术提出一种新的推理方法。     

基于Web的在线考试系统设计与实现

基于目前无纸化考试的需求，通过C／S和B／S开发模式的结合，设计并实现了Web方式下的在线考试系统，并给出了系统的体系结构，讨论了该考试系统的功能模块及采用的关键技术。     

两种交互模式的智能小车集成门户控制系统设计研究

为了使人们从繁琐的劳作中解放出来以及实现对不可达区域的实时远程监控,利用三层门户框架开发技术实现对智能监测小车的监控和命令响应.小车端装有无线接受装置,通过无线发射器与监测电脑相连,监测电脑将接收到的数据传到服务器上,此过程是Java调用DLL本地化的C/S交互模式.在服务器上部署响应控制的Web服务接收,处理小车采集...     

立体车库钢架应变网络化测控系统设计

将现代嵌入式、CAN总线与应变测试等技术相结合,设计了一款适用于立体车库的钢架应变数据网络化测控系统。硬件以S3C2410X为控制核心,采用多个CAN总线智能测试节点采集钢架应变数据,通过以太网接口实现数据网络化传输;软件选用Linux,通过搭建嵌入式Web服务器,采用B/S监控模式,驱动程序由CGI调用,实现对系统硬件模块的操作控制。用户可直接访问测控系统,阅览HTML界面时,完成系统参数设置和数据的采集、查看、下载工作。经调试和静、动态实验操作,结果表明系统综合性能良好。     

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.     

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.     

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.     

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.     

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。     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that