共查询到19条相似文献,搜索用时 93 毫秒
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光纤传感技术,是近几年才发展成熟的一项尖端技术,由于其有着普通电学传感技所不具备的许多优势,应用范围在逐渐扩大。着重介绍光纤传感技术在结构健康监测系统中的应用。 相似文献
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分布式传感是光纤光栅传感技术得以推广的优点之一,它利用光纤布拉格光栅中心反射波长值的不同来识别网络中各点的变化状况,不仅实现了大范围测量场内分布信息的提取,还解决了目前测量领域的许多难题。简单介绍了布式光纤光栅传感的分类及其解调技术和复用技术,深入研究了分布式光纤光栅传感系统中传感器的布置方式和故障定位方法,并介绍了分布式光纤光栅传感的应用和发展现状。 相似文献
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光纤传感器具有许多优点,它已应用到很多领域.本文介绍了全光网络的组成结构,及攻击光网络的几种手段,分析了现存的攻击测试方法,讨论了光纤传感技术在全光网络攻击测试方法中的应用. 相似文献
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油气管道运输伴随着中国经济的快速腾飞和石油工业的蓬勃发展,具有占地少、损耗少、成本低、输量大、快捷方便等优点,但也有其安全问题也越来越突出.文章介绍了大港油田针对原有传统在线泄露系统日益老化的问题,探讨基于光纤传感激光干涉技术的光纤油气传感管道安全技术,通过对光纤油气传感管道安全技术的分析,认为其必将对油气管线监控产生积极影响. 相似文献
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对布拉格光纤光栅(FBG)和基于光散射的分布式光纤测温技术原理进行阐述。经比较,基于拉曼散射的分布式测温系统性能良好,更易实现。同时探讨了光纤传感与计算机技术融合的智能光纤监测系统在大坝水利安全监测中的应用。 相似文献
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对光纤传感技术的工作原理和在普通物理实验中的应用进行了介绍,对在近代物理实验课中开设的实验项目提前到普通物理实验阶段这一做法进行了有益的探索,为我们提供了实验教学改革的一种新的思路. 相似文献
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光纤通信是目前最主要的信息传输技术.实现全光网是光纤通信第二轮研究开发时期最重要的奋斗目标.本文主要总结了全光通信技术、光交换与全光网技术最新研究和发展等方面的内容. 相似文献
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光纤通信具有传输速度快、稳定性好、安全性高及扩展性强等优点,把银行的计算机网络从DDN网改造为光纤网,可以实现高速、安全、网络一体化传输,实行统一管理,统一监控。 相似文献
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Anne Mangen 《Journal of Research in Reading》2008,31(4):404-419
Reading is a multi‐sensory activity, entailing perceptual, cognitive and motor interactions with whatever is being read. With digital technology, reading manifests itself as being extensively multi‐sensory – both in more explicit and more complex ways than ever before. In different ways from traditional reading technologies such as the codex, digital technology illustrates how the act of reading is intimately connected with and intricately dependent on the fact that we are both body and mind – a fact carrying important implications for even such an apparently intellectual activity as reading, whether recreational, educational or occupational. This article addresses some important and hitherto neglected issues concerning digital reading, with special emphasis on the vital role of our bodies, and in particular our fingers and hands, for the immersive fiction reading experience. 相似文献
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虚拟仿真技术具有沉浸性、交互性、构想性的特征,即通过技术手段与相关设备,充分激发人的视、听、触等感官功能沉浸在虚拟世界中,进行观察与交互。将虚拟现实技术引入高校历史实验课堂对于历史教学和研究以及历史学的“新文科建设”有现实意义。 相似文献
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根据高职项目化教学的现状,以高职课程食品感官检验技术的职业能力为切入点,提出了基于工作任务系统化的多元评价体系。建立了考评能力结构模型、任务评价分解和多元评价指标体系。 相似文献
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As information and communication technology continues to evolve, body sensory technologies, like the Microsoft Kinect, provide learning designers new approaches to facilitating learning in an innovative way. With the advent of body sensory technology like the Kinect, it is important to use motor activities for learning in good and effective ways. In this article, we aim to examine both empirical illustrations and theoretical underpinnings for the gesture-based or motor-based learning enabled by the body sensory technology. We review and distill salient concepts and ideas from the existing theoretical and empirical literature related to body-movement- and gesture-based learning, and propose a motorpsycho learning approach. In our discussion, the word/affix motor is synonym to gestures and body movements, and psycho is synonym to cognitive activities. We explore the important role that motors play in psychological activities, especially in cognitive learning. We argue that motors can facilitate psychological activities in learning by enhancing information processing, encoding, representing, and communicating. We also call for more empirical studies on technology-enhanced and gesture-based learning to design, practice, and examine the motorpsycho learning approach. 相似文献
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Using an Assistive Technology Toolkit to Promote Inclusion 总被引:1,自引:0,他引:1
Although the use of assistive technology for young children is increasing, the lack of awareness and the lack of training
continue to act as major barriers to providers using assistive technology. This article describes an assistive technology
toolkit designed for use with young children with disabilities that can be easily assembled and implemented by early childhood
professionals. Specifically, we will describe assistive technology tools that support young children’s participation in their
daily activities that involve movement and sensory needs, communication, and interaction with materials and offer strategies
on how to implement these devices. An assembled toolkit that allows young children with disabilities immediate access to experiences
that lead to acquisition of skills they need to learn and grow is discussed. 相似文献
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信息技术的引入对于幼儿园语言教育有极大的帮助,能为幼儿创设轻松、愉悦的语言环境,促进幼儿语言能力和交际能力的发展.作为幼儿教师,应该充分认识到信息技术的优势,通过技术手段给幼儿带来多重感官刺激,使语言活动更加直观化和生活化,激发幼儿学习的积极性.本文通过分析幼儿语言教育的重要性,对信息技术在幼儿园语言活动中的运用策略进... 相似文献
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电化教育和传播媒体呈现的生动形象的视频、动听的音乐、美轮美奂的画面,迎合了幼儿不同的感觉器官,符合幼儿的认知规律。信息技术运用于幼儿教育活动中,是时代发展对幼儿教育的要求,可以有效地促进幼儿核心素养的形成和发展,也使幼儿教育焕发出新的生命活力。文章对如何让信息技术助力幼儿核心素养教育进行探讨。 相似文献