串行总线技术在音视频设备中的应用

简要介绍了I2C总线I、EEE1394总线、USB总线的通信协议及特点,分析了I2C总线在电视机中的应用实例,给出了USB总线I、EEE1394总线在音视频设备中的应用。     

基于IEEE1394总线的无线光通信系统

利用光总线进行通信可以极大的提高无线光通信系统的整体性能。文章将IEEE1394总线和无线光通信系统的优势结合起来,使用IEEE1394总线连接无线光通信设备,提出了一种新的无线通信方案,实现了高速无线传输,重点给出了IEEE1394设备与光通信设备间的接口电路的实现方法。     

多媒体教学平台中的数字视频传输板卡设计与实现

高速、实时的数字视频输出、截取在多媒体教学环节中有着极为重要的理论和实际应用价值,随着信息技术的高速发展,IEEE1394总线以400Mbps的实用速率已经成为视频领域的事实标准。采用TI的1394集成控制芯片TSB43AB23实现了PCI与1394总线转换接口电路的设计,实现了基于IEEE1394总线的在多媒体教学平台中实用的数字视频输出、截取板卡。     

IEEE 1394应用于星载成像光谱仪图像传输的研究

总结了下一代星载数据总线5个方面的要求.在对三种候选总线进行对比并结合下一代成像光谱仪需求,认为IEEE 1394是系统应用的最佳选择.较详细地介绍了IEEE 1394总线应用于成像光谱仪数据传输的设计方案.     

对IEEE 1394总线技术的研究

IEEE1394总线技术作为一种数据传输的标准,具有高速、灵活和可扩展性等特点,是当今公认的最快的高速串行总线,已经有越来越多的设备使用这种数据传输方式。从其总线技术特征、应用特点和不足对IEEE1394总线技术进行了研究。     

IEEE1394异步传输模式下数据通信机制的研究

IEEE1394总线作为一种数据传输的标准,具有传输速率高、可扩展性好等特点,是目前常用的数据传输方式之一.论文讨论了IEEE1394协议模型,详细分析了异步数据传输的分层结构、传输接口以及数据发送和接收过程中的数据拷贝和事务处理的实现方法,并给出了分析测试结果.     

IEEE 1394总线技术研究

IEEE1394总线技术作为一种数据传输的标准,具有高速、灵活和可扩展性等特点,是当今公认最有效的数据传输方式之一。已经有越来越多的设备开始使用这种数据传输方式。本文从其拓朴结构、传输类型、总线配置、总线仲裁及其特点等方面对1394总线技术进行了详细的研究。     

电脑外设接口USB 2.0规范及IEEE 1394规范探析

分别对目前计算机中广为使用的两种外部设备接口规范USB2.0和IEEE1394进行了介绍,并从成本、易用性和传输速度等方面对两者进行了比较。     

星载设备IEEE1394接口的地面检测系统设计与实现

通过分析星载设备IEEE1394接口对地面检测设备的要求,提出了地面检测系统的设计方案,指出了其关键技术在于IEEE1394设备驱动和应用程序的设计,并分别给出了IEEE1394设备驱动和应用程序详细的设计方法.     

计算机串行通信总线标准及其特点

介绍了EIA—RS-232C、EIA—RS-423A、EIA—RS-422A、EIA—RS-485、USB和IEEE 1394等6种流行的计算机串行通信总线规程，并分析了各自的应用特点．     

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

正~~