鳴砂の発音特性に及ぼす環境物質の影響 Study of Environmental Materials Affecting Sound-Producing Property of Singing Sand

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A sound analyzer for measuring and analyzing the quality of singing sand was fabricated in order to clarify the deterioration factors of the sound-producing property of singing sand on the beach. The fundamental frequency measured by this instrument is used as an index. A technique that objectively evaluates the sound-producing property of singing sand was established. Using this technique, various environmental materials that affect the sound-producing property of singing sand were clarified. The environmental materials were sand moisture, precipitated salts from seawater, water-insoluble materials in fine powder state, and heavy oil and surfactant from environmental pollutants. Generally, the sound-producing property of singing sand deteriorates in the presence of these environmental materials. However, it was proven that the sound-producing property of singing sand is improved by the existence of moisture, heavy oil and surfactant at ultratrace levels. In addition, when physical forces, like vibration was applied to the sand particles, the sound-producing property of singing sand deteriorated, and actually disappeared. It was also proven that sand particle size has no effector the sound-producing property of singing sand.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment  

    水環境学会誌 = Journal of Japan Society on Water Environment 31(4), 197-202, 2008-04-10 

    Japan Society on Water Environment

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各種コード

  • NII論文ID(NAID)
    10021158488
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    9471430
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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