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In some circumstances it is necessary to allow the public to interact with AR or VR contents in physical space in an easy to use and low cost way, such as mark based AR book in classroom and interactive VR art or AR art in exhibition or museum in open space. The authors developed tangible user interface elements based on marker recognition. The user interface elements include virtual buttons, virtual...
Sn-doped ZnO microrods have been fabricated via the vapor-phase transport method. The as-synthsized samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The gas sensors based on the Sn-doped ZnO microrods are very sensitive to ethanol gas, and the sensitivity is about 52.4 against 100ppm ethanol at working temperature...
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