Kun Shan University Institutional Repository:Item 987654321/20381
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.lib.ksu.edu.tw/handle/987654321/20381


    题名: PHASE TRANSITION EXAM CARDS AND EXAM PEN DESIGN
    作者: Chao, Yu Tin
    Ya Lin Yu
    Jia Yush Yen
    Che Jung Hsu
    Jay Shieh
    Jen-Wel Chen
    Micheal Kam
    Shih Tang Liu
    贡献者: National Taiwan University, Department of Mechanical Engineering
    National Taiwan University, Department of Material Science and Engineering
    Department of Testing Service and Information Management College Entrance Examination Center
    关键词: phase transition material
    exam cards
    cooling system
    日期: 2013-11-02
    上传时间: 2013-11-14 15:30:33 (UTC+8)
    摘要: In nowadays, optical mark recognition technology is used in most countries to check the answers and calculate the grades. It is achieved by using the carbon pen to mark the answer cards. It is hard to use the same force to mark every forms. When the force is too small, the optical mark scanner can’t recognize the answer. On the contrary, when the force is too hard, the answer can’t be cleaned completely and that may cause some recognizing problems to the scanner. Although manual checking is still exist, it is only used to the answer cards which is marked by zero by the scanner. This research will use a new method to avoid problems caused by the color difference and invalid erasing. To improve the answer method, this research adopted phase transition material to the answer card and developed a temperature control pen to mark the answer card. This phase transition material changes its color as temperature changes, so the mark on the answer cards can be cleaned by the temperature control pen completely. In addition, this kind of marking method did not have the problem caused by the color shade. In consequence, with this optical recognition technology, the probability of misjudgment can be reduced significantly.
    显示于类别:[機械工程系所] Automation 2013- The 12th International Conference on Automation Technology

    文件中的档案:

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    E001.pdf32KbAdobe PDF228检视/开启
    eAutomation_FULL_0001.pdf199KbAdobe PDF0检视/开启


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