Pei-Ying Lin

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—Most of existing search engines retrieve web pages by means of finding exact keywords. Traditional keyword-based search engines suffer several problems. First, synonyms and terms similar to keywords are not taken into consideration to search web pages. Users may need to input several similar keywords individually to complete a search. Second, traditional(More)
In our study, one-dimensional PbI 2 /polyvinylpyrrolidone (PVP) composition fibers have been prepared by using PbI 2 and PVP as precursors dissolved in N,N-dimethylformamide via a electrospinning process. Dipping the fibers into CH 3 NH 3 I solution changed its color, indicating the formation of CH 3 NH 3 PbI 3 , to obtain CH 3 NH 3 PbI 3 /PVP composite(More)
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