Shu-chen Lu

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The nanocrystalline ZnO:RE powders with room temperature sharp photoluminescence were prepared successfully by chemical precipitation method in the present work. This is a great progress in the study of rare earth doped ZnO. For the ZnO:Er3+ obtained in the present paper, the room temperature sharp characteristic emissions from the trivalent rare earth(More)
This study, based on a variety of data sources, investigates the linguistic and cultural characteristics associated with the black and white expressions among Taiwanese Mandarin, Taiwanese Hakka, and Taiwanese Southern Min. The meaning distributions of the data profile four types: prototypical meanings, metonymic extensions, metaphorical extensions and(More)
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