研究者詳細 - 稲垣　哲也

論文 - 稲垣　哲也

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

International Wood Products Journal 8 巻頁： 193 - 200 2017年

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

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

International Wood Products Journal 8 巻 ( 4 ) 頁： 193 - 200 2017年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：International Wood Products Journal

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

Web of Science

Scopus

Estimation of wood density, moisture content and fiber orientation by THz time domain spectroscopy 査読有り

Inagaki T., Kashima M., Tsuchikawa S.

28th International Conference on Wood Science and Technology, ICWST 2017: Implementation of Wood Science in Woodworking Sector 頁： 3 - 6 2017年

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：28th International Conference on Wood Science and Technology, ICWST 2017: Implementation of Wood Science in Woodworking Sector

Terahertz (THz) radiation has the potential to be a useful tool for sensing and imaging of wood because wood is relatively transparent at these frequencies (below about 1 THz). In this study, demonstration of simultaneous prediction of solid wood density, moisture content and fiber orientation, all of which are critical in manufacturing operations, of 14 species including softwood and hard wood was accomplished using terahertz time-domain spectroscopy (THz-TDS). THz measurements of wood at various moisture contents were taken for 19 orientations of the THz field (0-180o with 10o step) with respect to the visible grain. The real part of refractive index value and absorption cosfficient had strong correlation with density and moisture content of the wood. A strong correlation between measured and predicted values for density and moisture content were observed. The possibility for the estimation of fiber orientation using the birefringence property of wood were shown.

Scopus

NIR Spectral-kinetic analysis for thermally degraded Sugi (Cryptomeria japonica) wood 査読有り

Tetsuya Inagaki, Miyuki Matsuo and Satoru Tsuchikawa

Applied Physics A 2016年

Effect of heat treatment on colour changes of black alder and beech veneers 査読有り

Salca, EA, Kobori, H, Inagaki, T, Kojima, Y, Suzuki, S

JOURNAL OF WOOD SCIENCE 622 巻頁： 297-304 2016年

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

Tetsuya Inagaki Daisuke Nozawa, Yoshiaki Shimomura and Satoru Tsuchikawa,

Journal of Near infrared spectroscopy 24 巻頁： 327-335 2016年

Optical Properties of Drying Wood Studied by Time-Resolved Near-Infrared Spectroscop 査読有り

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

Optic Express 9 巻頁： 9561-9573 2016年

Fast online NIR technique to predict MOE and moisture content of sawn lumber 査読有り

Hikaru Kobori, Tetsuya Inagaki, Takaaki Fujimoto, Tsutomu Okura, Satoru Tsuchikawa

HOLZFORSCHUNG 69 巻 ( 3 ) 頁： 329-338 2015年4月

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

Laszlo Tolvaj, Satoru Tsuchikawa, Tetsuya Inagaki, Denes Varga

49 巻 ( 6 ) 頁： 1225-1237 2015年

Visualisation of degree of acetylation in beechwood by near infrared hyperspectral imaging 査読有り

Tetsuya Inagaki, Katsuya Mitsui, Satoru Tsuchikawa

J. Near Infrared Spectrosc. 23 巻頁： 353-360 2015年

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

Tetsuya Inagaki, Belal Ahmed, Ian D. Hartley, Satoru Tsuchikawa, Matthew Reid

J Infrared Milli Terahz Waves 2014年

Assessment of variations in air-dry wood density using time-of-flight near-infrared spectroscopy 査読有り

GUILLAUME HANS, RYUNOSUKE KITAMURA, TETSUYA INAGAKI, BRIGITTE LEBLON & SATORU TSUCHIKAWA

Wood Material Science & Engineering 2014年

High accuracy rapid prediction and feasibility of on-site nondestructive estimation of Para rubber quality by spectroscopic methods 査読有り

Tetsuya Inagaki, Panmanas Sirisomboon, Chang Liu, Warunee Thanapase, Satoru Tsuchikawa

Journal of Wood Science 59 巻頁： 119-126 2013年

Eucalyptus Camaldulensis Density and Fiber Length Estimated by Near Infrared Spectroscopy 査読有り

Tetsuya Inagaki, Manfred Schwanninger, Reina Kato, Yohei Kurata, Warunee Thanapase, Pratuang Puthson and Satoru Tsuchikawa

Wood Science and Technology 2012年

Rapid Prediction of Past Climate Condition from Lake Sediments by Near-Infrared (NIR) Spectroscopy 査読有り

TETSUYA INAGAKI, YOSHITSUGU SHINOZUKA, KAZUYOSHI YAMADA, HITOSHI YONENOBU, AKIRA HAYASHIDA, SATORU TSUCHIKAWA, AKIHIROYOSHIDA, YASUHARU HOSHINO, KATSUYA GOTANDA, and YOSHINORI YASUDA

APPLIED SPECTROSCOPY 66 巻頁： 673-679 2012年

Near Infrared Spectroscopic Assessment of Contamination Level of Sewage 査読有り

etsuya Inagaki, Yukari Shinoda, Mitsuhiro Miyazawa, Hitoshi Takamura and Satoru Tsuchikawa

Water Science and Technology 61 巻頁： 1957 2010年

Near-Infrared Spectroscopic Investigation of the Hydrothermal Degradation Mechanism of Wood as an Analogue of Archaeological Objects. Part II: Hardwood 査読有り

Tetsuya Inagaki, Katsuya Mitsui and Satoru Tsuchikawa

Applied Spectroscopy 63 巻頁： 753 2009年

Monitoring of Hydroxyl Groups in Wood during Heat Treatment Using NIR Spectroscopy 査読有り

Katsuya Mitsui, Tetsuya Inagaki and Satoru Tsuchikawa

Biomacromolecules 9 巻頁： 286 2008年

Near-Infrared Spectroscopic Investigation of the Hydrothermal Degradation Mechanism of Wood as an Analogue of Archaeological Objects. Part I: Softwood 査読有り

Tetsuya Inagaki, Katsuya Mitsui and Satoru Tsuchikawa

Applied Spectroscopy 62 巻頁： 1209 2008年

Near-Infrared Spectroscopic Monitoring of the Water Adsorption/Desorption Process in Modern and Archaeological Wood 査読有り

Tetsuya Inagaki, Hitoshi Yonenobu and Satoru Tsuchikawa

Applied Spectroscopy 62 巻頁： 860 2008年

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