基于单片机的通信系统的设计与实现

本文设计了单片机与internet互联的新系统；从系统硬件平台设计、以太网驱动程序设计、TCPIP协议设计等方面详细介绍了整个系统平台的设计与实现过程。     

岩石扰动蠕变试验系统的研发

给出了岩石扰动蠕变试验系统的研发过程，其中包括：恒载重力加栽系统的设计、气压加栽三轴箱的设计、扰动加栽系统的设计、变形测量系统的设计、扰动测量系统的设计等；也介绍了设计过程中选型、重要的设计计算和各子系统的主要技术参数及性能；并展示了整个系统的使用情况和应用前景。     

基于C#的汽车电器虚拟实验系统的设计

本文分析了汽车电器系统实验的特点,对构建虚拟汽车电器实验系统的设计思想进行了描述。以汽车充电系统为例,根据系统的整体设计原则,结合实验要求,设计了汽车充电实验系统的整体框架和功能模块。     

基于SystemC的SoC系统级设计方法

随着嵌入式系统的发展,片上系统（SoC）设计已经成为集成电路设计的发展方向。SoC设计的复杂性对集成电路设计的各个层次,特别是对系统级芯片设计层次带来了新挑战。SystemC是一种完全基于C＋＋的系统级建模语言,它同时支持RTL级、行为级和系统级描述。本文介绍了SystemC的特点和系统设计环境,有利于进行SoC系统级设计,并阐述了一种基于SystemC的系统级设计方法。     

通信系统的电磁兼容性设计

电磁兼容性设计是通信系统中的重要环节。介绍了通信系统电磁兼容设计策略,并提出了一些用于通信系统电磁兼容性设计方法。     

面向工艺的拉深模设计专家系统

介绍了一个面向工艺的拉深模设计专家系统。该系统能够完成拉深件设计－ 拉深工艺设计－ 拉深模设计的全过程。通过系统的实际运行, 证明所设计的系统模型是行之有效的, 可用于拉深模设计研究参考。     

基于Verilog-HDL的现代数字系统设计

随着社会的发展，各种电子产品和工业控制的要求越来越高。这必然会推动现代数字系统的设计。进行数字系统的设计有多种方法。和多种的设计工具，随着EDA计术的发展，为现代数字系统的设计提供了灵活，快捷的途径。本文通过介绍Verilog_HDL语言和QRartusⅡ工具来对现代数字系统的设计方法和流程进行描述。最后通过设计一个交通灯控制器对现代数字系统的设计进行详细的介绍。     

高校仪器设备计算机管理系统的研制

本文介绍了高校仪器设备计算机管理系统的设计思想,硬件环境和支持软件的选择,系统分析和整体方案设计,数据结构和代码设计,功能模块设计,系统特点。为正在准备设计这类系统和应用该系统实现仪器设备现代化管理的同志提供有益的信息。     

一个基于Web的电话语音服务系统TSW的设计

介绍了一个基于ＷＥＢ的电话语音服务系统的设计。该系统是由电话语音卡处理电话语音,通过Ｗｅｂ进行查询的Ｗｅｂ语音信箱应用系统。此文介绍了该系统的设计思想、设计目标、系统结构及其实现。     

暖通空调系统的节能设计措施探讨

暖通空调系统在整体建筑工程系统中属于必不可少的组成部分,在为人们提供舒适良好的居住环境方面发挥着不可替代的作用,因而对暖通空调系统进行合理设计也就十分必要。在当前暖通空调系统设计过程中,为能够更好地满足设计需求及要求,应当对其实行节能设计,从而使暖通空调系统能够得以更好应用。本文就暖通空调系统的节能设计措施进行分析,以保证暖通空调节能设计更好地实现。     

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