利用DDE技术实现不同应用之间的数据交换

阐述了如何利用DDE(dynamic data exchange)技术把显示于数据窗口的数据库中的数据自动传递到Excel电子表格中，以便灵活地操纵数据．把Excel作为DDE服务器，提供了一种在用PowerBuilder 8．0开发的应用程序中导出、打印表格类数据的方法，实现了不同应用程序之间数据交换．     

基于DDE、NETDDE技术解决不同组态软件通讯的方法

DDE是一种动态数据交换机制(Dynamic Data Exchange,DDE)。动态数据交换是微软公司提出的一种数据通讯形式,它使用共享的内存在应用程序之间进行数据交换。NETDDE即DDE客户端程序通过网络访问远程DDE服务器。基于大部分组态软件均支持DDE及NETDDE的特性,可以通过组态软件对于Excel的通讯,方便快捷的实现不同组态软件之间的通讯。     

基于DDE技术实现MFC-MATLAB间的进程通讯

针对在工业控制系统中如何实现数据的动态传输这一关键性问题，提出了一种新的解决方案，即基于DDE技术实现MFC－MATLAB间的进程通讯，从而实现数据的动态传输，该方案是以MFC应用程序作为SERVER程序，用MATLAB应用程序作为CLIENT程序来完成复杂控制算法的计算任务，SERVER与CLIENT之间通过DDE协议连接起来。介绍了Windows环境下DDE（动态数据交换）技术原理，以及MFC与MATLAB对DDE技术的支持；解决了在MFC中DDE消息的处理；分析了MATLAB和MFC间矩阵数据交换格式；建立了MFC与MATLAB的热链接，进行数据的动态传输。     

基于DDE的FIX与VB数据通讯的实现

介绍了Windows环境下DDE (动态数据交换 )技术原理 ,以及组态软件FIX与开发工具VB对DDE技术的支持 .通过实例说明了FIX应用与VB应用程序之间利用DDE进行数据通信实现方法     

基于DDE的监控系统通信

本文介绍了在工业控制以太网监控系统中,使用VB进行数据通信程序设计,通过DDE技术实现数据交换的方法.     

利用DDE技术实现组态王与VB应用程序的数据通讯

本文介绍了Windows环境下DDE（动态数据交换）技术原理,以及组态软件组态王与开发工具VB对DDE技术的支持。通过实例说明了组态王应用与VB应用程序之间利用DDE进行数据通信实现方法。     

计算机控制系统仿真实验对象设计与实现

用Delphi开发了计算机控制系统实验的仿真被控对象．仿真对象基于离散对象模型，作为独立的应用程序，通过DDE与控制程序进行数据交换．控制程序用组态王的程序命令语言实现，具有直观、简便等优点．应用结果显示：此仿真对象界面友好，操作方便，具有很好的应用价值．     

基于DDE的FIX与VB数据通讯的实现

介绍了Windows环境下DDE（动态数据交换）技术原理，以及组态软件FIX与开发工具VB对DDE技术的支持，通过实例说明了FIX应用与VB应用程序之间利用DDE进行数据通信实现方法。     

基于DDE数据交换技术的Zemax数据传递

提出了采用DDE数据交换技术来对Zemax数据进行获取及传送,介绍了编程算法,并实例说明了操作过程。该方法使Zemax数据与其他仿真模块之间可以实现快速的数据交换。     

基于uClinux的测井仪器调试台架前端机软件设计

介绍一种基于uClinux系统平台的调试台架前端机软件设计方案,软件由驱动程序和应用程序两部分构成。为满足仪器测试中实时高速大数据通讯要求,实时控制局域网总线(CAN)和井下仪器总线(DTB)通讯功能由驱动程序完成。应用程序实现人机交互、与上位机网络通讯等实时性要求不高的功能。驱动程序与应用程序之间的信息交换由异步通知信号实现。所提方案已成功应用到微电阻率扫描、阵列感应、多极阵列声波等系列化成像测井仪器调试台架之中,并且加快了这些仪器的研制及维护效率。     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the