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時系列解析を応用した砕屑物の円磨度の測定方法
https://nufs-nuas.repo.nii.ac.jp/records/35
https://nufs-nuas.repo.nii.ac.jp/records/35d582611e-58cf-4c37-bacb-627185d38dc6
名前 / ファイル | ライセンス | アクション |
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時系列解析を応用した砕屑物の円磨度の測定方法 (1.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2012-06-27 | |||||
タイトル | ||||||
タイトル | 時系列解析を応用した砕屑物の円磨度の測定方法 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Measuring Method of Roundness of Clasts based on Time Series Analysis | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
大矢, 芳彦
× 大矢, 芳彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Roundness is one of the useful information derived from sedimentary clasts. As the measurement method, however, is ambiguous and objective, the discussion based on roundness has been not quantitative but qualitative until now. This study shows new measurement method of roundness, which is obtained by transform from two dimension image of clasts in time series data. In concrete terms, the silhouettes of pebbles in Krumbein's plate are graphed with software on the market, and the data can be analyzed using time series methods. As a result of that, an especially plain feature was not admitted in the autocorrelation analysis in individual pebble data. But it is found that the lower roundness shows the larger standard deviation of difference between the moving average (MA) and the physical value.The correlation of roundness and the standard deviation with MA = 30 is extremely high (r= 0.947). At that time, the relational expression of roundness (x) in MA=30 and the standard deviation (y) is shown with y = − 0.0139x+0.0148. The data from Powers' report has also the relation between roundness and the standard deviation in extremely high correlation (r = 0.960). The relational expression in this case is shown by y = − 0.0073log(x) +0.0019. |
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書誌情報 |
名古屋外国語大学外国語学部紀要 en : Journal of School of Foreign Languages, Nagoya University of Foreign Studies 号 31, p. 1-15, 発行日 2006-08 |
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論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 110008751812 | |||||
見出し | ||||||
大見出し | 論文 | |||||
言語 | ja | |||||
見出し | ||||||
大見出し | Articles | |||||
言語 | en |