在线测温装置网络集中监控管理系统的设计

电力设备在线测温装置能实时监测设备工作温度,准确反映设备运行状况,及时发现缺陷隐患,从而有效避免事故或故障的发生。以某厂在线测温装置网络集中监控管理系统的设计为实例,介绍系统的技术实现方式、基本功能和实施效果。     

浅议石灰土路基施工时的质量控制

本文对石灰土路基施工的准备阶段进行了分析,详细阐述了石灰土基层施工厂拌法和路拌法两种.     

基于PLC和iFIX的煤气发生炉控制系统

煤气发生炉是连轧厂最为重要的辅助设备之一,为连轧厂蓄热式加热炉提供高效、清洁的煤气,煤气发生炉的正常运行直接关系着后续的生产;为了实现对煤气发生炉进行有效的控制,设计了基于iFIX组态监控软件的实时监控系统,通过MPI电缆实时采集S7-300PLC的各种信号——煤气温度、汽包压力、饱和温度、鼓风压力等,并实现自动控制,实时显示和超限报警,达到了预期的设计目标。     

浅谈公路工程半刚性路面基层施工技术

半刚性路面基层施工是公路工程施工中常见的施工技术,其施工技术的好坏对工程质量有着重要的影响.公路施工的质量关乎着广大居民的切身利益.为确保工程安全、优质、高速的完成,技术是根本,本文结合作者多年实践经验,以公路工程半刚性路面基层施工技术为研究核心,详细阐述了公路工程施工中的路拌法施工与厂拌法施工技术,最后提出了施工中应注意的几个问题,以供读者参考.     

硅钢厂烟气除尘监控系统的设计

对硅钢厂烟气除尘系统中的各个设备的工作状态进行可视化实时监控,可以提高系统的安全性和可靠性。利用工业控制组态软件设计监控系统对PLC控制的烟气除尘系统中的各个部分进行监控,对在工作过程中出现的故障进行监控并报警。     

基于安卓平台的重点设备远程监测系统设计

传统制造行业设备监控存在信息故障反馈不及时、提取和处理数据效率低下等问题。为提高设备使用调度管控效率,及时掌握现场设备情况,基于物联网技术,开发了一套监测重点设备系统。系统能实时采集现场设备运行过程中的参数信息,将处理的数据实时发布到安卓平台移动端。实验结果表明,采用该系统能提高获取数据的有效性和及时性,方便管理人员实时监控,高效、便捷、准确了解现场重点设备运行情况,为实时跟踪设备、分析设备状态及有效管理提供决策支持。     

基于组态软件与单片机的多点温度监控系统总体设计

本文采用了以单片机为核心的控制板作为下位采集控制设备,以力控组态软件为上位机设计界面、后台管理等,二者结合组成对多点温度的实时监控.     

基于实时/历史数据库的变电站环境监测平台的开发与应用

在开关室及主控室中有大量的精密设备,设备对温、湿度等运行环境的要求非常严格,所以应加强变电站环境监测.本项目构建一个基于实时/历史数据库的软硬件一体化环境监测平台,以实时检测重要设备区域内的温、湿度,保证电力设备安全、稳定运行.     

基于GIS的矿产资源远程监管系统研究

融合计算机网络、数据传输、定位等技术并引入矿井空间位置信息研发了矿产资源远程监管系统,该系统为井下的开采人员及开采设备等安装RFID标签,在巷道的关键和边界位置安装读卡分站;在露天矿山开采设备上安装GPS监控模块;运用GIS拓扑分析技术生成矿山巷道的要素,运用GIS可视化技术,以图形的方式直观、实时显示井下情况,实时监控井下设备、工作人员的地理位置以及矿产采掘情况。     

基于LabVIEW的氢电综合供应微能源网监控系统北大核心

氢电综合供应微能源网通过可再生能源发电、制氢,实现电能和氢能的可靠供应,是降低碳排放量的手段之一。为确保能源供应系统安全稳定运行,分析系统内设备功能及运行方式,基于LabVIEW软件平台开发了一款能源供应监控系统。根据设备实时运行方式建立设备运行状态动画模拟,以微能源网优化调度结果作为监控系统输入数据,建立输入数据与设备动画模型的关系。通过动态刷新调度数据,实现各种设备运行状态的动态展示。该监控系统可动态展示微能源网中设备的各项运行参数,同时实现绘制设备实时出力曲线图的功能。     

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.