研究者詳細 - 土川　覚

論文 - 土川　覚

分割表示 537 件中 181 - 200 件目／全件表示 >>

Vis-NIR spectroscopy for the on-site prediction of wood properties 査読有り

Kobori Hikaru, Kojima Miho, Yamamoto Hiroyuki, Sasaki Yasutoshi, Yamaji Fabio Minoru, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 631 - 638 2013年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Forestry Chronicle

We investigated the feasibility of visible-near-infrared (Vis-NIR) spectroscopy for estimation of wood qualities of fast-growing Eucalyptus grandis. Partial least squares regression (PLSR) models are applied to predict the diameter at the breast height (DBH), lateral growth rate (LGR) and propagation velocity of stress waves (PVSW). It was possible to estimate LGR and PVSW with appropriate accuracy. This suggested that perhaps information in terms of maturation is included in Vis-NIR spectra. The key factors in the validation of PVSW and LGR were the water and cellulose condition in wood.

DOI： 10.5558/tfc2013-114

Web of Science

Scopus

Vis-NIR Spectroscopy for the On-site Prediction of Wood Properties

Kobori, H, Kojima, M, Yamamoto, H, Sasaki, Y, Yamaji, F. M, Tsuchikawa, S

The Forestry Chronicle 89 巻 ( 5 ) 頁： 36-43 2013年

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

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

The Forestry Chronicle 89 巻 ( 5 ) 頁： 595-606 2013年

Applicability of Vis-NIR hyperspectral imaging for monitoring wood moisture content (MC)

Kobori, H, Gorretta, N, Rabatel, G, Bellon-Maurel, V, Chaix, G, Roger, J.-M, Tsuchikawa, S

Holzforschung 67 巻 ( 3 ) 頁： 307-314 2013年

A Review of Recent Near Infrared Research for Wood and Paper Part 2

Tsuchikawa, S, Schwanninger, S

Applied Spectroscopy Review 48 巻頁： 560-587 2013年

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

Leblon Brigitte, Adedipe Oluwatosin, Hans Guillaume, Haddadi Ataollah, Tsuchikawa Satoru, Burger James, Stirling Rod, Pirouz Zarin, Groves Kevin, Nader Joseph, LaRocque Armand

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 595 - 606 2013年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Forestry Chronicle

This review article examines past and current research on the application of near-infrared (NIR) reflectance/transmittance spectroscopy (NIRS) for real-time monitoring of moisture content and density of solid wood Most of the applications of NIRS on solid wood have focussed on the application of multivariate statistics as exploratory tools for the prediction of physical, chemical and mechanical properties, such as moisture content, density, stiffness, cellulose and lignin content. However, very few studies on the development of optical models and the use of NIRS transmittance techniques on solid wood have been reported. NIRS technology has the potential to be used as a rapid tool that could be employed for at-line measurement and monitoring of wood properties in the forest products industry.

DOI： 10.5558/tfc2013-111

Web of Science

Scopus

Establishment of near infrared archaeometry 招待有り査読有り

Inagaki, T, Tsuchikawa, S

NIR News 24 巻 ( 7 ) 頁： 4-6 2013年

Near-Infrared Spectroscopy and the Forest Products Industry 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 575 2013年

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

Higa, S, Kobori, H, Tsuchikawa, S

Applied Spectroscopy 67 巻 ( 11 ) 頁： 1302-1307 2013年

High accuracy rapid prediction and feasibility of on-site nondestructive estimation of Para rubber quality by spectroscopic method

Inagaki, T, Sirisomboon, P, Liu, C, Thanapase, W, Tsuchikawa, S

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

Prediction of wood density using near infrared-based partial least squares regression models calibrated with X-ray microdensity 査読有り

Rodrigues, J. C, Fujimoto, T, Schwanninger, M, Tsuchikawa, S

NIR News 24 巻 ( 2 ) 頁： 4-5,8 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

Time-of-flight Near-infrared Spectroscopy for Nondestructive Measurement of Internal Quality in Grapefruit 査読有り

土川覚

138(3) 巻頁： 1 - 4 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り Open Access

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

La spectroscopie proche infrarouge et le secteur des produits forestiers 査読有り

Leblon Brigitte, Tsuchikawa Satoru

FORESTRY CHRONICLE 89 巻 ( 5 ) 頁： 575 - 576 2013年

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

Inagaki Tetsuya, Shinozuka Yoshitsugu, Yamada Kazuyoshi, Yonenobu Hitoshi, Hayashida Akira, Tsuchikawa Satoru, Yoshida Akihiro, Hoshino Yasuharu, Gotanda Katsuya, Yasuda Yoshinori

APPLIED SPECTROSCOPY 66 巻 ( 6 ) 頁： 673 - 679 2012年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Applied Spectroscopy

This study explored the feasibility of rapid, nondestructive near-infrared (NIR) reflection spectroscopy for the prediction of conventional physical properties, carbon-nitrogen-sulfur (CNS) analysis, and concentration of inorganic components in sediment cores from a brackish lake. A long core sample, which consisted of well-preserved annually formed lamina from Lake Ogawara along the Pacific coast in Aomori Prefecture, northeastern Japan, was used to investigate the past environmental record. The core was previously analyzed for physical properties, CNS, and inorganic components. Calibration models were developed from NIR reflection spectra of 149 core samples. Partial least squares (PLS) analysis provided good regression models between measured and predicted values for water content, total nitrogen (TN), total organic carbon (TOC), total sulfur (TS), Al 2O 3, S/Al 2O 3, Fe 2O 3/Al 2O 3, Sc/Al 2O 3, Cu/Al 2O 3, and Zn/Al 2O 3 with coefficients of determination (r 2) for cross-validation of 0.73, 0.89, 0.88, 0.73, 0.92, 0.81, 0.82, 0.75, 0.82, and 0.82, respectively. The variation of predicted component values as a function of depth showed the same trend as that of conventionally measured values. This study also showed the possibility of NIR spectroscopy as an on-site, rapid analytical tool for the identification of tephra (fragmental material produced by a volcanic eruption regardless of composition, fragment size, or emplacement mechanism), which is important for dating. © 2012 Society for Applied Spectroscopy.

DOI： 10.1366/11-06418

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論文 - 土川 覚

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論文 - 土川　覚