一种ZigBee无线传感器网络教学实验平台的构建

针对"无线传感器网络"课程实验教学,研发了一种基于无线片上系统MG245X的ZigBee无线传感器网络教学实验平台。设计并实现了该教学平台的总体架构、硬件电路、软件模板框架。通过该实验平台可以完成ZigBee无线传感器网络基础性实验、综合设计性实验、拓展创新性实验等实验内容,对于ZigBee无线传感器网络实验教学、功能演示、理论研究和实际应用都具有十分重要的意义。     

基于校园网和ZigBee技术的实验室监控管理系统

介绍了一种基于校园局域网和ZigBee无线传感器网络技术的高校实验室远程监控管理系统.该系统通过传感器对实验室环境数据进行采集,通过ZigBee网络和基于以太网的校园局域网将数据上传至监控中心,实现对实验室环境状态的监控和管理,提高实验室的工作环境和科研效率.     

基于ZigBee网络的教学楼管理系统在高校中的应用

ZigBee技术是一种全新的短距离无线传感器网络标准,其专注于商业建筑自动化、工厂车间管理和家庭居住控制这三大无线传感器网络市场领域。一个基于ZigBee的教学楼管理系统,可以将传统的教学楼变成全新的现代化教学楼,为高校师生的学习和生活提供便利。     

高校实验教学管理系统的研究与构建

实验教学是高校教学工作的重要组成部分,实验教学改革是高校教育改革的重要环节,实验教学管理工作的好坏直接影响到实验教学效果。针对多年来高校实验教学管理工作的现状,分析了传统实验教学管理模式存在的问题,提出了一种基于网络的实验教学管理系统的设计方案。     

基于无线传感器网络的车库管理系统设计

针对传统车库管理系统存在布线困难和智能化程度低等缺点,将基于ZigBee无线传感器网络技术应用于大型车库监视和管理领域.通过无线传感器网络和车辆识别、防盗、防火、报警系统相结合,构建了基于无线传感器网络的车库管理系统,能够快速方便的管理车位,对车库内的环境信息进行可靠监测,实现对车库的有效管理.同时,为降低网络节点能耗,设计了一种低功耗网络路由算法.经测试,该系统组网灵活、可移动性强、智能化程度高,能够满足车库管理的要求,具有一定的实际应用价值.     

基于云实验平台的无线传感器网络实验教学探索

无线传感器网络具有广阔的发展前景和重要的实用价值。为了培养符合技术发展需求的工程技术人才,改善传统实验教学中实验资源利用率低、维护成本高、受时空限制等问题,本文基于我校云实验平台设计了无线传感器网络实验课程。该课程的内容设计及创新性的实验教学模式,在激发学生自主学习积极性、提高学生实践创新能力、提升实验课程质量等方面取得了良好的效果。     

高校实验教学改革项目管理平台的建设

实验教学研究改革项目管理工作是高校实验教学环节中的重要组成部分.为建立创新型实验教学体系,提高实验教学改革管理工作效率,实现立项管理信息化、网络化,哈尔滨工程大学结合近年来实验教学改革立项工作的实际开展情况,通过优化管理工作流程、加强成果展示推广和实验资源共享等方面的建设,研究开发了项目管理系统,搭建了实验教学改革资源共享平台.以深化学校实验教学管理体制改革,推动实验教学研究与改革立项管理工作和服务水平迈上一个新的台阶.     

基于RFID的仪器设备管理系统的设计与实现

随着高校实验仪器设备的增加和不断更新,如何科学有效的管理这些实验仪器和设备,就成了摆在我们面前的重要课题。通过整合管理系统和运用现代化网络技术、射频识别技术,设计了一个基于B/S结构的仪器管理系统。系统能实现仪器设备入库、识别、清查、跟踪、定位等功能,既可以实现实验仪器、设备的高效管理,也可以保证实验教学和科研工作更加科学、有效的开展。     

面向工程应用的无线传感器网络综合实验设计

无线传感器网络课程的知识点包括了从感知层的硬件构成到应用层的安全设置。分析了目前无线传感器网络实验教学过程中存在的问题,提出了面向工程应用的无线传感器网络实验教学的必要性,详细设计了一个以“基于物联网的水产养殖监控系统开发”为工程应用背景的无线传感器网络的综合实验方案,给出了实验成绩的考核方法,取得了很好的实验效果。     

基于802.1X混合认证体系的无线网络实验研究

随着计算机网络和无线认证技术的发展,高校无线网络实验水平与主流技术间的差距越来越大,设计操作性强的网络存储实验成为实验教学的新课题.该文提出并建立了一套保障信息安全的混合认证体系,实现了基于RADIUS的无线802.1X/EAP接入认证和基于LDAP的认证服务的整合,并针对高校学生的基本情况设计了理论完善、操作性强的实验流程.     

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,     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

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.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

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.