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Monitoring the physical state of wood during multiple tensile load-unload cycles by the eigenvalue distribution of near infrared spectra
https://repository.lib.tottori-u.ac.jp/records/2001704
https://repository.lib.tottori-u.ac.jp/records/2001704abdd2d1f-323a-461d-81e5-bd82f04d4615
| 名前 / ファイル | ライセンス | アクション |
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jnis30(6)_345.pdf (1.3 MB)
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| Item type | デフォルトアイテムタイプ（フル）(1) | |||||||||||
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| 公開日 | 2025-02-12 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Monitoring the physical state of wood during multiple tensile load-unload cycles by the eigenvalue distribution of near infrared spectra | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
藤本,高明
× 藤本,高明
WEKO
4876
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| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | Wood is a typical viscoelastic material that shows a clear mechanical hysteresis loop during cyclic loading, which implies the irreversibility of the process and is important for the processing and long-term utility of wood. Changes in the physical state of wood were examined during multiple tensile load-unload cycles based on the eigenvalue distribution of the near-infrared spectra. The set of eigenvalues H = {λ1, λ2, …, λn}, calculated from the spectral matrix successively acquired during the cycling test, was treated as the Hamiltonian, which represents the energy eigenstate of the wood. Using statistical physics and random matrix theory, the variation in the physical state of wood was discussed from both macroscopic and microscopic perspectives. Unlike traditional methods, the energy state of wood can be followed in real time during cyclic loading; in other words, the Helmholtz free energy and Shannon entropy varied with load changes. The commutator, defined by the density and diagonal matrix of H, could be used to quantitatively evaluate the irreversible changes in wood during the cyclic processes. The proposed method is independent of a specific coordinate system, and can therefore be applied using a wide variety of chemical information other than that obtained from the near-infrared spectra. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | SAGE Publications | |||||||||||
| 言語 | en | |||||||||||
| 日付 | ||||||||||||
| 日付 | 2022-10-10 | |||||||||||
| 日付タイプ | Issued | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 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 | journal article | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | AM | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
| 関連情報 | ||||||||||||
| 関連タイプ | isVersionOf | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1177/09670335221130469 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 13646575 | |||||||||||
| 収録物名 | ||||||||||||
| 収録物名 | Journal of Near Infrared Spectroscopy | |||||||||||
| 言語 | en | |||||||||||
| 巻 | ||||||||||||
| 巻 | 30 | |||||||||||
| 号 | ||||||||||||
| 号 | 6 | |||||||||||
| ページ数 | ||||||||||||
| ページ数 | 7 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 345 | |||||||||||
| 終了ページ | ||||||||||||
| 終了ページ | 351 | |||||||||||
| 書誌情報 |
en : Journal of Near Infrared Spectroscopy 巻 30, 号 6, p. 345-351, ページ数 7, 発行日 2022-10-10 |
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| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 言語 | en | |||||||||||
| 権利情報 | Fujimoto T. Monitoring the physical state of wood during multiple tensile load-unload cycles by the eigenvalue distribution of near infrared spectra. Journal of Near Infrared Spectroscopy. 2022;30(6):345-351. doi:10.1177/09670335221130469. (C) 2022 SAGE Publications. DOI: 10.1177/09670335221130469. | |||||||||||
