基于LabVIEW和Proteus的温度测控系统的设计     

乔有田 《扬州职业大学学报》2010,14(3):38-40

根据电路仿真软件Proteus和虚拟仪器软件LabVIEW的特点,用其对虚拟温控系统软硬件进行设计和调试：此法可用于电类专业在工业测量和控制方面的毕业设计。  相似文献   

温湿度自动检定系统的应用与改进研究     

尚伦  高云  陈一鸣 《武汉工程职业技术学院学报》2013,(4):49-53,18

介绍了温湿度检定系统的工作原理与应用方法,指出了当前工作中的不足,提出了检定系统的改进方案。针对具体问题,充分运用计算机技术,以vb编程语言为基础,利用当前设备中现有的RS232和RS485串行接口,并采用USB摄像头图像采集技术,由计算机按照检定规程实时采集温湿度数据和控制检定过程,完成了温湿度检定系统的自动化改造。同时,针对改造后应用过程中的问题,提出了进一步的改进思路和方法。本次改造充分利用了当前设备的功能和接口,以及市场上廉价的普通USB摄像头,实现了检定过程的自动化,节省了大量的人力、提高了工作效率和检定精度,具有一定的推广价值。  相似文献   

Cross-cultural language learning and web design complexity     

Ji Yong Park 《Interactive Learning Environments》2013,21(1):19-36

Accepting the fact that culture and language are interrelated in second language learning (SLL), the web sites should be designed to integrate with the cultural aspects. Yet many SLL web sites fail to integrate with the cultural aspects and/or focus on language acquisition only. This study identified three issues: (1) anthropologists’ cultural models mostly adopted in cross-cultural web user interface have been superficially used; (2) web designers deal with culture as a fixed one which needs to be modeled into interface design elements, so (3) there is a need for a communication framework between educators and design practitioners, which can be utilized in web design processes. This paper discusses what anthropology can contribute to language learning, mediated through web design processes and suggests a cultural user experience framework for web-based SLL by presenting an exemplary matrix. To evaluate the effectiveness of the framework, the key stakeholders (learners, teachers, and designers) participated in a case scenario-based evaluation. The result shows a high possibility that the framework can enhance the effective communication and collaboration for the cultural integration.  相似文献   

可编程序控制器的电平信号输入     

刘安国 《淮南师范学院学报》2013,(5):102-104

针对可编程序控制器只接受物理开关量和模拟量,而不能直接输入数字量（电平信号）的现实问题,通过剖析可编程序控制器的原理、结构,对输入电路进行改造处理,从而使可编程序控制器在接受物理开关量和模拟量的同时,也能接受数字量,拓展了其应用。  相似文献   

Characterizing navigation in interactive learning environments     

Hai-Ning Liang 《Interactive Learning Environments》2013,21(1):53-75

Interactive learning environments (ILEs) are increasingly used to support and enhance instruction and learning experiences. ILEs maintain and display information, allowing learners to interact with this information. One important method of interacting with information is navigation. Often, learners are required to navigate through the information space of an ILE, a process which can be quite difficult and cognitively exacting as the information space becomes very large and complex. Proper design can make this process less exacting and, at the same time, facilitate better learning of the information space. However, this is not easy to do, especially for ILEs. Frameworks can assist in the effective analysis and design of interactive environments. However, there is lack of conceptual frameworks for guiding the analysis and design of navigation in ILEs. This paper tries to address this issue by presenting a framework which can be used to characterize navigation within ILEs. To create this framework, this paper brings together research from various disciplines, such as human-computer interaction design, educational multimedia design, cognitive technologies and learning sciences. This framework prescribes a three-stage process for designing and analyzing navigation: 1. content structuring; 2. information navigation modeling; 3. interface presentation structuring. By bringing these three stages together, it is intended to provide a conceptual framework to assist and guide designers in the proper analysis and design of navigation in ILEs.  相似文献   

CTC与CTCS2交互流程及实际问题分析     

杜丽霞  曹岩 《实验室研究与探索》2013,32(5)

以铁路客专列控中国列车控制系统(Chinese Train Control System,CTCS)、中国列车控制(Chinese Train Control,CTC)工程大范围推广实施为项目背景,介绍了这2大系统的软件接口设计及方法,并对两者系统在接口时的一些关键细节进行深入探讨。对目前工程实施中出现的较严重问题加以分析,提出了合理可行的意见,此方案基本上已在大部分铁路局实施。  相似文献   

使用SPCE061A的SI0实现数码录音及播放     

杨芳 《辽宁科技学院学报》2004,6(1):31-32

介绍了利用新型16位机SPCE061A的SIO实现数码录音及播放功能.详细介绍了实现的硬件设计过程.给出了硬件连接图及软件设计流程图.  相似文献   

串行同步双缓冲扫描提高平板显示器的显示亮度和传送利用率   总被引：2，自引：1，他引：2  

陈章进  陈峰  冉峰  徐美华  郑方 《上海大学学报(英文版)》2007,11(3):314-317

This paper presents a serial synchronous scanning mode in flat panel display (FPD) by adding a latch buffer between the serializer and the driving buffer. Comparing with conventional techniques, the proposed structure can efficiently reduce the brightness loss and improve the transmission performance. Theoretical analysis and experimental results show that the ratio between the lightest weight display time and the relative transmission time is a tradeoff between brightness loss and transmission efficiency.  相似文献   

Beyond Framing   总被引：1，自引：0，他引：1  

T. J. Thomson  Keith Greenwood 《Journalism Practice》2017,11(5):625-644

Visual news media's framing has been well studied; however, production factors and cultural conditions involved in photographer–subject interactions have attracted less scholarly attention although they are no less influential in determining the depiction. Guided by social constructionism theory, in-depth interviews with staff photojournalists at a daily community newspaper in the Midwest and an analysis of their work revealed 22 variables that impact how and why images look the way they do. Photojournalists have complete control of only two of these variables, share partial control of 13, but have no control over the remaining seven. The photographers also shared insights into how to improve their journalism's verisimilitude when dealing with reactive subjects. The results support concepts of social constructionism that the subjects of photographs are most comfortable with photographers who share similar characteristics, but that some characteristics can have greater influence. The results also highlight areas where photographers might focus in pursuit of authenticity in journalistic photographs.  相似文献   

Seeing Library Data: A Prototype Data Visualization Application for Librarians     

Mark Eaton 《Journal of Web Librarianship》2017,11(1):69-78

Visualizations can add value to raw library data. Tools that programmatically make such visualizations interactive can further increase the value of these data by giving librarians visual tools to analyze their datasets. To demonstrate these benefits, Kingsborough Community College Library built SeeCollections (http://b7jl.org/seecollections), a Web application that visualizes the libraries’ collections of books and e-books. This article discusses the how SeeCollections gathers data from Kingsborough's discovery layer API (Application Programming Interface) and transforms these data to create visualizations for the Web. SeeCollections is a lightweight, proof-of-concept data application based on a vendor API. API data are often accessible in academic libraries but are frequently underutilized. SeeCollections was built to demonstrate the immediate value of these API data sources to Kingsborough librarians by providing a visual interface to discovery layer data. Keeping in mind the broader literature on data visualization, this article will explore how SeeCollections was built.  相似文献