著者

小林 幸夫 小島 直樹 Yukio KOBAYASHI Naoki OJIMA 平成16年度専攻科電子システム工学:(現)日本ビクター株式会社

出版者

小山工業高等専門学校

雑誌

小山工業高等専門学校研究紀要 = The research reports of Oyama Technical College (ISSN:02882825)

巻号頁・発行日

vol.38, pp.71-75, 2006-03-10

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It is few that phase information is handled as a research on tone color. Because it has been thought that the phase is unrelated to the tone color. However, the result that the human can detect the phase difference is also reported, when the phase difference between each component sound of complex tone was changed. In one of the auditory sense psychological phenomenon, by the change of the harmonic composition the tone color changes, and it is not change sound pitch. This phenomenon is called "Phenomenon of the missing fundamental (MF)". As we paid attention to this phenomenon in this research, we confirmed the mechanism and examined the influence of the phase change between the component sounds to the perception of MF. As the result, it has been found that the changes of the pitch and the tone color take place in the perception by giving the phase difference. So, we concluded that not only each frequency component but also phase is largely related to a tone color.

著者

菊地 吉郎 山口 和春 Kichiro KIKUCHI Kazuharu YAMAGUCHI 電子システム工学専攻

出版者

小山工業高等専門学校

雑誌

小山工業高等専門学校研究紀要 = The research reports of Oyama Technical College (ISSN:02882825)

巻号頁・発行日

vol.38, pp.27-30, 2006-03-10

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An earthworm moves in the ground, underground and a narrow crevice using many lots of segments. This movement is called peristalsis, and differs from movement of other animals. And this movement is very simple operation compared with movement of other animals. It is thought that a peristalsis is useful in the calamity spot. However, an author does not know the reference seen about the peristalsis. In case equipment will be developed from now on, it is thought that the elucidation of the move mechanism of an earthworm that used the peristalsis is very important. In this research, a camera and equipment are used and it aims at solving the detailed movement mechanism of an earthworm.

著者

田村 航 Wataru TAMURA

出版者

小山工業高等専門学校

雑誌

小山工業高等専門学校研究紀要 = The research reports of Oyama Technical College (ISSN:02882825)

巻号頁・発行日

vol.39, pp.158-150, 2007-03-10

著者

柴田 洋一 高松 竹男 Yoichi Shibata Takeo Takamatsu 小山工業高等専門学校一般物理 小山工業高等専門学校技術室

出版者

小山工業高等専門学校

雑誌

小山工業高等専門学校研究紀要 = The research reports of Oyama Technical College (ISSN:02882825)

巻号頁・発行日

vol.37, pp.23-27, 2005-03-10

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ペットボトルロケットの工作上、翼部分は最も精度が要求されやっかいである。しかし翼は実はもっと単純な構造で同様の効果が得られる。形状と同時に翼の取り付け位置も変え、どのように飛行が変化するか実証実験を行った結果を報告する。またこれらの実験を通して、翼の働きについても考察をおこなった。