MISC - 土川　覚

リグナ・ハノーバー２０１１名古屋大学ブース出展報告 招待有り 査読有り

土川 覚  

木材工業67 巻 ( 2 ) 頁： 81-84   2012年

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記述言語：日本語   掲載種別：機関テクニカルレポート，技術報告書，プレプリント等  

Modulus of elasticity prediction model on sugi (Cryptomeria japonica) lumber using online near-infrared (NIR) spectroscopic system 査読有り

Imran Arrad Sofianto, Tetsuya Inagaki, Kouchi Kato, Mariya Itoh, Satoru Tsuchikawa  

International Wood Products Journal8 巻 ( 4 ) 頁： 193 - 200   2017年10月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）   出版者・発行元：Taylor and Francis Ltd.  

In this study, static bending measurements and online NIR spectra acquisitions were combined to construct modulus of elasticity (MOE) prediction model for sugi lumber. NIR spectra were acquired from tangential surface of sugi lumbers at a speed of 120 m min−1 to assess its effectiveness in the wood industry. Cross-validation partial least squares regression (CV-PLSR) and test-set-validation partial least squares regression (TSV-PLSR) analyses were employed for analysing the data. The second derivative (2d) spectra with 19 smoothing points (Savitzky–Golay algorithm, second polynomial) gave the best result as spectral pre-processing treatment with the lowest root mean square error of cross-validation and the highest coefficient of determination for cross-validation based on the optimum number of latent variables as assessed from the minimum validation residual variance value in the CV-PLSR analysis. These 2d spectra were then used in the TSV-PLSR analysis for 100 repetitions to check the robustness of the calibration.

DOI： 10.1080/20426445.2017.1378398

Scopus

Modulus of elasticity prediction model on sugi (Cryptomeria japonica) lumber using online near-infrared (NIR) spectroscopic system

Imran Arrad Sofianto, Tetsuya Inagaki, Kouchi Kato, Mariya Itoh, Satoru Tsuchikawa  

International Wood Products Journal8 巻 ( 4 ) 頁： 193 - 200   2017年10月

　詳細を見る

記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）   出版者・発行元：Taylor and Francis Ltd.  

In this study, static bending measurements and online NIR spectra acquisitions were combined to construct modulus of elasticity (MOE) prediction model for sugi lumber. NIR spectra were acquired from tangential surface of sugi lumbers at a speed of 120 m min−1 to assess its effectiveness in the wood industry. Cross-validation partial least squares regression (CV-PLSR) and test-set-validation partial least squares regression (TSV-PLSR) analyses were employed for analysing the data. The second derivative (2d) spectra with 19 smoothing points (Savitzky–Golay algorithm, second polynomial) gave the best result as spectral pre-processing treatment with the lowest root mean square error of cross-validation and the highest coefficient of determination for cross-validation based on the optimum number of latent variables as assessed from the minimum validation residual variance value in the CV-PLSR analysis. These 2d spectra were then used in the TSV-PLSR analysis for 100 repetitions to check the robustness of the calibration.

DOI： 10.1080/20426445.2017.1378398

Scopus

Stiffness and Moisture Content Prediction Model of Wooden Veneer Using Fast Online Near-Infrared (NIR) Spectroscopic System 査読有り

Sofianto, I. A, Inagaki, T, Itoh, M, Tsuchikawa, S  

Forestry Research and Engineering: International Journal1 巻 ( 2 ) 頁： 1-5   2017年9月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

High spatial resolution and non-destructive evaluation of wood density and microfibril angle by NIR hyperspectral imaging 招待有り

Ma, T, Inagaki, T, Tsuchikawa, S  

NIR news28 巻 ( 5 ) 頁： 7-12   2017年6月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

The effect of path length, light intensity and co-added time on the detection limit associated with NIR spectroscopy of potassium hydrogen phthalate in aqueous solution 査読有り

Tetsuya Inagaki, Tomoko Watanabe, Satoru Tsuchikawa  

PLOS ONE12 巻 ( 5 ) 頁： https://doi.org/10.1371/journa   2017年5月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）   出版者・発行元：PUBLIC LIBRARY SCIENCE  

Near infrared (NIR) spectroscopy is a common means of non-invasively determining the concentrations of organic compounds in relatively transparent aqueous solutions. Rigorous determination for limit of detection (LOD) is of importance for the application use of NIR spectroscopy. The work reported herein determined the LOD with the analysis of potassium hydrogen phthalate (KHP) in water with partial least square (PLS) calibration in the range of 6300 - 5800 cm (-1) between the two strong absorption bands of water, in which the C-H overtone bands of KHP are located. A comparison of the LOD estimated when using various condition (path length, aperture and co-added scan times) showed that the lowest LOD for KHP obtained with a fiber optic cable attachment equipped NIR spectrometer is approximately 150 ppm.

DOI： 10.1371/journal.pone.0176920

Web of Science

The effect of path length, light intensity and co-added time on the detection limit associated with NIR spectroscopy of potassium hydrogen phthalate in aqueous solution

Tetsuya Inagaki, Tomoko Watanabe, Satoru Tsuchikawa  

PLOS ONE12 巻 ( 5 ) 頁： e0176920   2017年5月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）   出版者・発行元：PUBLIC LIBRARY SCIENCE  

Near infrared (NIR) spectroscopy is a common means of non-invasively determining the concentrations of organic compounds in relatively transparent aqueous solutions. Rigorous determination for limit of detection (LOD) is of importance for the application use of NIR spectroscopy. The work reported herein determined the LOD with the analysis of potassium hydrogen phthalate (KHP) in water with partial least square (PLS) calibration in the range of 6300 - 5800 cm (-1) between the two strong absorption bands of water, in which the C-H overtone bands of KHP are located. A comparison of the LOD estimated when using various condition (path length, aperture and co-added scan times) showed that the lowest LOD for KHP obtained with a fiber optic cable attachment equipped NIR spectrometer is approximately 150 ppm.

DOI： 10.1371/journal.pone.0176920

Web of Science

PubMed

Classification of mung bean seeds for sprout production using near-infrared spectroscopy and hyperspectral imaging 査読有り

Phuangsombut, K, Terdwongworakul, A, Suttiwijitpukdee, N, Phuangsombut A, Tsuchikawa S, Inagaki T, Ma T  

Thai Society of Agricultural Engineering Journal23 巻 ( 1 ) 頁： 23-29   2017年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Dynamic behavior of wood chemical components under drying process measured by near-infrared spectroscopy 査読有り

Sugii, S, Fujimoto, T, Tsutsumi, H, Inagaki, T, Tsuchikawa, S  

Journal of Near Infrared Spectroscopy25 巻 ( 6 ) 頁： 400-406   2017年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Segregating wood wastes by repetitive principal component analysis of near infrared spectra 査読有り

Kobori, H, Higa, S, Tsuchikawa, S, Kojima, Y, Suzuki, S  

Journal of Near Infrared Spectroscopy25 巻 ( 3 ) 頁： 180-187   2017年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Temperature dependence of wood photodegradation monitored by infrared spectroscopy 査読有り

Varga, D, Tolvaj, L, Tsuchikawa, S, Bejoc, L, Prekleta, E  

Journal of Photochemistry and Photobiology A: Chemistry348 巻   頁： 219-225   2017年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Determination of true optical absorption and scattering coefficient of wooden cell wall substance by time-of-flight near infrared spectroscopy 査読有り

Kitamura, R, Inagaki, T, Tsuchikawa, S  

Optic Express24 巻 ( 4 ) 頁： 3999-4009   2016年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Optical properties of drying wood studied by time-resolved near-infrared spectroscopy 査読有り

Konagaya, K, Inagaki, T, Kitamura, R, Tsuchikawa, S  

Optic Express24 巻 ( 9 ) 頁： 9561-9573   2016年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

近赤外分光法を用いた紙中の木材パルプの複合的評価手法の開発 査読有り

河部千香, 深沢博之, 稲垣 哲也, 土川 覚  

紙パ技協誌71 巻 ( 3 ) 頁： 318-325   2016年

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記述言語：日本語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Three fiber-based diffuse reflectance spectroscopy for estimation of total solid content in natural rubber latex 査読有り

Inagaki, T, Nozawa, D, Shimomura, Y, Tsuchikawa S  

Journal of Near Infrared Spectroscopy24 巻   頁： 327-335   2016年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

A Review of Recent Application of Near Infrared Spectroscopy to Wood Science and Technology 招待有り 査読有り

Tsuchikawa, S, Kobori, H  

Journal of Wood Science61 巻   頁： 213-230   2015年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Combined effects of UV light and elevated temperatures on wood discolouration 査読有り

Tolvaj, L, Tsuchikawa, S, Inagaki T, Varga, D  

Wood Science and Technology49 巻 ( 6 ) 頁： 1225-1237   2015年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Simultaneous prediction of density and moisture content of wood by terahertz time domain spectroscopy

Inagaki, T, Ahmed, B, Hartley, I. D, Tsuchikawa, S, Reid, M  

Journal of Infrared, Millimeter, and Terahertz Waves35 巻 ( 11 ) 頁： 949-961   2014年11月

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

A review of near-infrared spectroscopy for monitoring moisture content and density of solid wood 査読有り

Leblon, B, Adedipe, O, Hans, G, Haddadi1, A, Tsuchikawa, S, Burger; J, Stirling, R, Pirouz, Z, Groves, K, Nader, J, LaRocque, A  

The Forestry Chronicle89 巻 ( 5 ) 頁： 595-606   2013年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）  

Mapping of Leaf Water Content Using Near-Infrared Hyperspectral Imaging", Applied Spectroscopy 査読有り

Higa, S, Kobori, H, Tsuchikawa, S  

Applied Spectroscopy67 巻 ( 11 ) 頁： 1302-1307   2013年

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記述言語：英語   掲載種別：速報，短報，研究ノート等（学術雑誌）