Yasuhiro Kinoshita

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Two isofuranonaphthoquinone derivatives, named arthoniafurones A (1-acetyl-8-hydroxynaphtho[2,3-c]furan-4,9-dione) and B [1-acetyl-4,8-dihydroxynaphtho[2,3-c]furan-9(4H)-one], were isolated from a spore-derived culture of the mycobiont of the lichen Arthonia cinnabarina, that is new to Japan. Bostrycoidin and 8-O-methylbostrycoidin were also identified in(More)
—In this paper, we address a method for supporting origami folding process on origami. We focus on a folding operation with a view to understanding the state of origami. We estimate the folding operations by using one camera. The folding operation can be estimated by comparing origami shapes of before and after a folding operation. A silhouette model is(More)
Dynamic Programming (DP) algorithm has been studied from 1940s and successfully applied to pattern recognition fields such as continuous speech recognition, hand writing recognition, gesture recognition and so on. In this paper, we propose a novel hand gesture recognition system which includes three kinds of image processing: skin area segmentation, motion(More)
Various origami works are published as origami drill books in which a sequence of folding operations with simple diagrams is described. However, the book readers often give up following the instruction of the book halfway because it is too difficult to understand a way to fold in accordance with the diagrams. Therefore, we have developed an operational(More)
In atrazine-tolerant tobacco cells with Ser to Thr mutation at the 264th amino acid of PsbA polypeptide in photosystem II (PSII), electron trannsport around the secondary quinone acceptor (Q(B)) site was inhibited to a greater extent by barbatic acid than in wild-type cells. Further characterization suggests similar mode of action of barbatic acid and(More)
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