通过Winsock实现TCP/IP网络通信

Sockets编程模式是TCP/IP网络技术的一个标准，而Winsock是Windows下基于Sockets模式的一个开放的网络编程接口.介绍了Winsock的基本概念，分析了Winsock的基本结构，并用一个应用实例说明通过Winsock实现TCP/IP网络通信的方法.     

基于TCP/IP协议的网络安全分析

在分析TCP／IP协议簇基本体系结构的基础上，针对TCP／IP协议本身存在的一些安全问题及其应用于Internet所带来的安全隐患，从不同角度讨论了各种可能的攻击策略的相应的防范措施，有助于基于TCP／IP协议的网络安全建议。     

Winsock技术在网络通信系统中的应用

Winsock是Windows下基于Sockets模式的一个开放的网络编程接口。介绍了TCP/IP和Winsock的基本概念以及客户端/服务器模型,并给出了基于Winsock的套接字编程流程,最后用一个应用实例说明通过Winsock实现TCP/IP网络通信的方法。     

基于TCP/IP的网络单片机应用

TCP/IP协议的运用保证了网络数据传输的准确性和快速性,但是如何运用TCP/IP协议实现网络中数据的传输成为了当今计算机应用研究领域的一大热点.不管是数据的传输还是网络的通讯都离不开单片机,随着单片机的应用不断渗透到日常生活的各个领域,单片机的应用对网络通信功能的实现起到了巨大的作用.因此研究基于TCP/IP的网络单片机应用有着重大意义.主要阐述了对单片机的初步了解、对TCP/IP协议的理解以及基于TCP/IP的网络单片机应用.     

基于单片机的网络通信设计

在因特网上TCP/IP协议保证数据传输的准确性,在数据采集与控制领域中如何利用TCP/IP协议实现单片机网络通信有着深远的意义．提出了单片机与Internet络通信的一种具体实现方案,借助以太网控制芯片RTL8019AS。将TCP／IP协议嵌入通用单片机中,通地RTL8019AS实现智能设备和仪表在Internet网络上的数据传输．     

基于TCP/IP和Socket的网络文件传送

给出基于TCP/IP协议的Windows套接字编程设计方法及部分源程序，并在局域网上通过了调试应用，实现了基于TCP／IP协议下准确、方便地在服务器和客户端间的文件收发。     

用Windows套接字实现双向Internet实时通讯

在介绍基于TCP／IP协议的WindowsSockcts的基础上,阐述利用Windows套接字编写应用程序实现双向Internet实时通讯的方法和技术,给出了面向连接方式协议的套接字系统调用时序图,探讨客户机／服务器模式的网络通信程序的编程模式以及数据传输,最后详细说明WindowsSockets在VB中的实现过程．     

基于TMS320DM6446的纸币清分机通信系统设计

网络部分是纸币清分机通信系统的重要模块,通过对TCP/IP协议中的ARP协议、IP协议、ICMP协议和UDP协议进行分析,结合系统主芯片TMS320DM6446特性,提出了基于双核处理器TMS320DM6446与IP101A以太网控制器的网络通信硬件设计;经过试验,完成了基于TCP/IP协议的纸币清分机通信系统设计目标.     

浅析变电站远动信息传输方法

针对目前变电站自动化系统领域广泛使用的远动串口通信模式，分析远动信息的网络通信模式和技术方案，并讨论了通信模式中TCP／IP协议的技术问题，指出了网络传输必将成为远动数据传输的发展方向。     

基于TMS320DM6446的纸币清分机通信系统设计

网络部分是纸币清分机通信系统的重要模块,通过对TCP/IP协议中的ARP协议、IP协议、ICMP协议和UDP协议进行分析,结合系统主芯片TMS320DM6446特性,提出了基于双核处理器TMS320DM6446与IP101A以太网控制器的网络通信硬件设计;经过试验,完成了基于TCP/IP协议的纸币清分机通信系统设计目标。     

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.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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