著者
松田 理沙 渡辺 隆行
出版者
一般社団法人電子情報通信学会
雑誌
電子情報通信学会技術研究報告. WIT, 福祉情報工学 (ISSN:09135685)
巻号頁・発行日
vol.107, no.368, pp.111-118, 2007-11-28

Rich Internet Applications, which interact with users dynamically and which content changes dynamically, are emerged with Ajax and JavaScript technologies. These dynamic Web pages, however, may cause accessibility problems. We carried out a case study with two Google applications, iGoogle and Google document, to examine 1) what kind of accessibility problems are came out, and 2) which problems are resolved by a code with good practice and which problems is inevitable.
著者
松田 理 オリバーB. ライト
出版者
一般社団法人 日本真空学会
雑誌
Journal of the Vacuum Society of Japan (ISSN:18822398)
巻号頁・発行日
vol.53, no.5, pp.336-343, 2010 (Released:2010-06-10)
参考文献数
42
被引用文献数
1

Ultrashort light pulses absorbed in a medium generate both bulk and surface acoustic waves: we focus here on imaging the surface waves and on monitoring the bulk acoustic waves that propagate in the depth direction. This is done in the time domain by delayed probe light pulses. For the bulk acoustic waves, the generated frequency ranges up to 1 THz. Some studies concerning the ultrafast electron-phonon relaxation in metal films, high frequency generation in semiconductor quantum wells, and high frequency shear acoustic wave generation and detection are reviewed here. For the surface acoustic waves the generated frequency ranges up to 1 GHz, and time-resolved two-dimensional images of the propagation are obtained with micron lateral spatial resolution. This imaging method is applied to anisotropic crystals and phononic crystals to elucidate their acoustic properties.
著者
松尾 光弘 松田 理登 石橋 孝明 菊池 優花 山北 伊織 盛 夏希 今村 鮎美 坂本 貴良 田代 佑治 酒井 泰良 山中 佳樹 西立野 興文 湯淺 高志
出版者
Japanese Society of Cryobiology and Cryotechnology
雑誌
低温生物工学会誌 (ISSN:13407902)
巻号頁・発行日
vol.61, no.1, pp.37-43, 2015-04-15 (Released:2017-06-15)

Low temperature have been broadly applied for storage technique of various vegetable and crops. Sweetpotato is one of the most popular crops grown in tropical and temperature regions. Because sweetpotato, originated from semi-tropical plants, is susceptible to cold stress, severe chilling stress by itself causes deterioration and/or irreversible damage in sweetpotato tuber tissues. However, mechanisms involved in physiological and biochemical changes of sweetpotato under chilling stress remain unclear. Thus, we focused on the gene expression profiles of cold stress-responsive transcriptional factors and carbohydrate metabolisms of sweetpotato in response to chilling stress. A sweetpotato homolog of Drought Responsive Element Binding factor (swDREB) is induced in sweetpotato within 6 h after treatment of chilling stresses. The expression of swDREB under chilling stress was maintained until 3 d. Chilling stress sequentially upregulated the expression of β-amylase (β-AMY) and trehalose-6-phosphate phosphatase (TPP). Increase of amylase activity and sugar content was also observed in sweet potato under chilling stress, These results suggest that swDREB mediates the expression of β-AMY and TPP via a cold stress-responsive transcription factor cascade, leading to degradation of starch in sweetpotato tuber and accumulation of maltose and trehalose.