基于传感网的冷藏车载监控系统的设计

现今我国在冷链运输方面体系不够完善且冷藏车的技术相对薄弱,导致农产品冷链供应之中存在易腐现象,使食品失去其食用价值.为了保证运输产品的质量,冷链运输过程中的环境因素尤为重要.为此设计一款基于物联网的冷藏车载环境监控系统,驾驶员及后台工作人员不仅可以实时读取车厢内的温湿度情况,还可以查询运输过程中环境的历史记录、跟踪行车路线,一旦发生质量问题,便可追根溯源,即时调整.     

流媒体技术在远程实时授课系统的应用

本文分析了远程实时授课系统的设计和实现。该远程实时授课系统运用流媒体技术, 结合服务器软件的配置使用、网络设计和ASP、JavaScript 语言编程实现“虚拟课室”, 供教师实现远程授课及学生远程实时听课。     

基于ZigBee技术的离子浓度远程监控系统

为了实现对远程电镀厂区离子浓度的实时远程监控,设计了一种基于Zig Bee无线传感网络技术的离子浓度远程监控系统,系统采用Zig Bee无线传感网络技术并结合GPRS技术和图形化编程软件Lab View 2011实现,设计的系统最终实现了对远程厂区离子浓度的实时远程监控。经实际的运行测试表明,达到了对远程厂区离子浓度进行远程实时监控的设计要求,为电镀行业中镀件产品科学、高效、安全、优质的加工生产提供了可靠的保障。     

家用远程实时监控系统的实现方法

随着网络通信技术、计算机技术及图像压缩技术等一系列现代信息技术的飞速发展,使得远程实时监控系统应用于家庭成为了一种可能.本文简要介绍了远程实时监控系统的构成及特点,探讨了实现家用远程视频实时监控系统的关键技术及其实现方法.     

利用远程答疑系统促进中小学教师的学习

利用网络条件有效组织学习信息,提供研究型、开放性的学习环境,是当前网络教育研究的重点。实时远程答疑是开放学习环境的重要组成部分,它集实时视频、实时语音、教学辅助工具为一体,有效地实现网络教学和远程辅导答疑。本文详细设计了实时远程答疑系统的方案,为中小学教师利用网络学习提供了全方位的平台支持。     

利用远程答疑系统促进中小学教师的学习

利用网络条件有效组织学习信息,提供研究型、开放性的学习环境,是当前网络教育研究的重点。实时远程答疑是开放学习环境的重要组成部分,它集实时视频、实时语音、教学辅助工具为一体,有效地实现网络教学和远程辅导答疑。本文详细设计了实时远程答疑系统的方案,为中小学教师利用网络学习提供了全方位的平台支持。     

基于嵌入式Web服务器和ZigBee的远程数据采集系统设计

为实现远程数据采集需求,提出了一种综合应用嵌入式Web服务技术和ZigBee技术的远程数据采集系统设计方案,并完成了系统软硬件设计。ZigBee传感器网络实时采集现场数据,并通过串行总线与嵌入式Web服务器通信,实现数据上传,远端用户通过Ineternet浏览器访问嵌入式Web服务器,获取远程实时数据。经实例验证,该系统具有实时和高效的优势,且运行维护成本较低。     

远程DSP实验系统实时性研究

以Internet网为基础,提出了一种远程DSP实时实验系统体系,该系统以中心服务器和DSP实验装置为核心组成;支持网上实验服务功能的远程实时实验系统;结合现代网络技术和数字信号处理器技术;采用多用户排队缓冲的机制。设计并实现了专用的实验硬件系统和软件系统,提出了构建远程实验系统的标准化框架和实现方法。     

利用流媒体技术实现远程双向视频教学

远程教育是一种基于网络技术的教学系统。它充分利用计算机网络的优势,通过双向交互式视频教学系统实现远程实时授课。该系统大多采用视频会议系统,软硬件投入大,本文探讨如何利用流媒体技术来实现双向交互式教学,更好地为远程开放教育服务。     

基于物联网平台的温度实时监测系统设计

利用开源硬件Arduino和YeeLink物联网平台设计了环境温度实时监测系统。系统通过温度传感器DS18B20实时捕获环境温度,传送至YeeLink物联网云平台,使用智能手机为操作终端,远程实时查看温度,实现通过网络实时监控环境温度功能。     

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!     

The Reader Response Approach to Teaching of English Literature

During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context.