X86系统微机实验接口卡

为了提高微机原理实验和微机应用系统设计的水平。达到直接在Ｘ８６系统微机上进行接口电路设计和微机应用系统设计,又不损坏Ｘ８６系统微机的目的。我们设计了Ｘ８６系统微机实验接口卡,该接口卡不仅为微机原理实验和微机应用系统设计提供了可靠的硬件环境,也为微机开发应用方面的科研创建了良好的硬件调试环境。     

一种微机保护实验系统

本文介绍了一种微机保护实验系统。实验系统由ＰＣ机、ＭＣＳ－９６系列开发系统和微机保护实验装置三部分构成。针对微机保护实验教学的抽象性、直观、生动地介绍了微机保护的基本构成,各部分电路功能软件实现及开发调试过程,该系统可用于微机保护实验教学。     

开展本科微机继保实验的关键问题

微机继保实验是电气类本科专业教学的重要内容.在分析本科微机继保实验的教学特点和实验现状的基础上,结合本校微机继保平台建设和教学实践,重点讨论实验形式、信号源产生、微机平台、考核内容等制约开展微机继保实验的关键问题.     

变压器微机保护实验装置

本文介绍了一种变压器微机保护实验教学装置,实验系统由一次保护硬件设计和以８０Ｃ１９６单片机为基础的微机保护单元箱组成。     

微机接口技术实验课程教学改革探讨

《微机原理及接口技术》是提高学生微型计算机应用与开发能力的重要课程。在实验教学中突破传统的实验模式是培养学生创新能力的一个关键。本文主要提出微机接口实验教学改革的方法,旨在提高教学效果。     

基于TPC-USB和Proteus的微机原理实验应用仿真

在现有微机实验系统的基础上,设计了基于TPC-USB和Proteus的新型微机接口仿真系统,并阐述利用该系统进行实验综合设计的新思路。以电压报警系统的仿真实例,阐述利用该系统进行实验仿真、调试的主要过程。实践表明,在硬件设计实验过程中,利用该微机仿真系统,通过Proteus进行原理图编辑,并在TPC-USB平台采用汇编语言、C语言或混合编程方式进行源代码编写及运行调试,可以加深对微机原理知识点的理解,进一步调动学生积极性及提高微机原理实验综合设计能力。     

微机原理实验与微型工程仿真实验结合方法研究

对微机原理综合实验进行拓展,将微机原理实验提升为微型工程仿真实验,解决学生对工程实验理解的问题,有利于学生加深对实际工程现象的理解,激发学生对微机原理实验的兴趣,提高学生的实际设计和动手能力以及创新能力。     

物理化学实验中的微机辅助测量系统

将微机自动控制和数据采集技术应用于物理化学实验领域，自行研制了一套微机辅助测量系统，可自动完成实验数据的采集，记录，储存和处理。     

微机保护虚拟实验的开发与应用

以微机两段式电流保护为例,详细介绍利用LabVIEW开发出一套微机保护虚拟实验教学平台。实践应用表明,微机保护虚拟实验具有成本低廉、操作方便、方便升级、功能完善的优势,实验教学质量显著提升。     

基于Proteus的微机接口虚拟实验平台的构建

Proteus 7.5版本的出现使得基于Proteus的微机原理与接口技术虚拟实验成为可能。本文介绍基于Proteus的微机接口虚拟实验平台的构建方法,对源程序编辑编译环境设置进行阐述,最后以8251A的应用为例描述在该平台下的如何开展微机接口实验。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.