Faculty Profiles - TSUCHIKAWA, Satoru

Papers - TSUCHIKAWA, Satoru

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La spectroscopie proche infrarouge et le secteur des produits forestiers Reviewed

Leblon, B; Tsuchikawa, S

FORESTRY CHRONICLE Vol. 89 ( 5 ) page： 575 - 576 2013.9

Near-infrared spectroscopy and the forest products industry Reviewed Open Access

Leblon B., Tsuchikawa S.

Forestry Chronicle Vol. 89 ( 5 ) page： 575 - 576 2013.9

Near-Infrared Spectroscopy and the Forest Products Industry

Brigitte Leblon, Satoru Tsuchikawa

FORESTRY CHRONICLE Vol. 89 ( 5 ) page： 575 - 575 2013.9

Time-Resolved Principal Component Imaging Analysis of Chlorophyll Fluorescence Induction for Monitoring Leaf Water Stress Reviewed

Kobori Hikaru, Tsuchikawa Satoru

APPLIED SPECTROSCOPY Vol. 67 ( 6 ) page： 594 - 599 2013.6

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Applied Spectroscopy

Chlorophyll fluorescence induction is widely applied to investigate plant growth conditions by calculating the ratio of its intensity at oxidized and reduced states. We examined the applicability of a time-resolved profile of chlorophyll fluorescence induction with the aid of multivariate analysis to monitor the leaf water stress. Principal component (PC) analysis of timeresolved images of chlorophyll fluorescence induction and their score images were reconstructed. Control leaves (non-stressed leaves) and water-stressed leaves could be classified by normalized PC3 score images. This technique has the potential to monitor the water stress condition of plants by using a simple device. © 2013 Society for Applied Spectroscopy.

DOI： 10.1366/12-06850

Web of Science

Scopus

PubMed

Time-of-flight Near-infrared Spectroscopy for Nondestructive Measurement of Internal Quality in Grapefruit Reviewed

Yohei Kurata, Tomoe Tsuchida, Satoru Tsuchikawa

JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE Vol. 138 ( 3 ) page： 225 - 228 2013.5

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：AMER SOC HORTICULTURAL SCIENCE

We proposed a technique combining time-of-flight (TOF) and near-infrared spectroscopy (NIRS), termed TOF-NIRS, capable of measuring the time-resolved profiles of near-infrared (NIR) light with nanosecond resolution. Analysis of the variation in time-resolved profiles was used to estimate soluble solids concentration (SSC) and acidity in grapefruit (Citrus paradisi), and the prediction accuracy was compared with the conventional NIR measurement device. In data processing, the cross-correlation function, which evaluated the similarity between the reference and transmitted beams, was introduced as an explanatory variable for partial least squares regression. TOF-NIRS predicted both SSC and acidity in grapefruit with higher precision than the conventional NIR measurement with respective r values of 0.72 and 0.85. Specifically, the superiority of TOF-NIRS was attributed to measurement time and prediction accuracy in determining acidity.

Web of Science

Time-of-flight near-infrared spectroscopy for nondestructive measurement of internal quality in grapefruit Reviewed

Kurata Y., Tsuchida T., Tsuchikawa S.

Journal of the American Society for Horticultural Science Vol. 138 ( 3 ) page： 225 - 228 2013.5

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of the American Society for Horticultural Science

We proposed a technique combining time-of-flight (TOF) and near-infrared spectroscopy (NIRS), termed TOF-NIRS, capable of measuring the time-resolved profiles of near-infrared (NIR) light with nanosecond resolution. Analysis of the variation in time-resolved profiles was used to estimate soluble solids concentration (SSC) and acidity in grapefruit (Citrus paradisi)*and the prediction accuracy was compared with the conventional NIR measurement device. In data processing*the cross-correlation function*which evaluated the similarity between the reference and transmitted beams*was introduced as an explanatory variable for partial least squares regression. TOF-NIRS predicted both SSC and acidity in grapefruit with higher precision than the conventional NIR measurement with respective r values of 0.72 and 0.85. Specifically*the superiority of TOF-NIRS was attributed to measurement time and prediction accuracy in determining acidity.

DOI： 10.21273/jashs.138.3.225

Scopus

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

Kurata Yohei, Tsuchida Tomoe, Tsuchikawa Satoru

JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE Vol. 138 ( 3 ) page： 225 - 228 2013.5

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

Hikaru Kobori, Nathalie Gorretta, Gilles Rabatel, Veronique Bellon-Maurel, Gilles Chaix, Jean-Michel Roger, Satoru Tsuchikawa

HOLZFORSCHUNG Vol. 67 ( 3 ) page： 307 - 314 2013.4

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：WALTER DE GRUYTER & CO

Visible-near-infrared hyperspectral imaging was tested for its suitability for monitoring the moisture content (MC) of wood samples during natural drying. Partial least-squares regression (PLSR) prediction of MC was performed on the basis of average reflectance spectra obtained from hyperspectral images. The validation showed high prediction accuracy. The results were compared concerning the PLSR prediction of MC mapping from raw spectra and standard normal variate (SNV) treatment. SNV pretreatment leads to the best results for visualizing the MC distribution in wood. Hyperspectral imaging has a high potential for monitoring the water distribution of wood.

DOI： 10.1515/hf-2012-0054

Web of Science

Scopus

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

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

JOURNAL OF WOOD SCIENCE Vol. 59 ( 2 ) page： 119 - 126 2013.4

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Journal of Wood Science

The aim of this study was to investigate convenient spectroscopic evaluation method of Para rubber quality. Ultra violet-near infrared (UV-NIR 370-1085 nm) spectra of latex were measured in transmittance mode. Calibrations for total solid content (TSC) and dry rubber content (DRC) were developed using spectral data set with aid of partial least square regression analysis using 57 samples. UV-NIR spectra of latex provided good regression models between measured and predicted values of TSC and DRC with determination coefficient for cross-validation of 0. 96 and 0. 97, respectively. The ranks were 2 and 1, respectively. This study suggests high accuracy in-line quality control of latex using UV-NIR spectroscopy. The long wavelength NIR spectra of bark were scanned to check the feasibility of on-site evaluation of latex quality by measuring the NIR spectra of standing tree. From the observation of near infrared spectra, it was shown that there was more latex signal in outer part of wood bark than in inner part of wood bark. This result suggests that the focal point should be on the outer part of bark to get the signal of latex when we measure the spectra of standing tree. © 2012 The Japan Wood Research Society.

DOI： 10.1007/s10086-012-1305-3

Web of Science

Scopus

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

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

Journal of Wood Science Vol. 59 page： 119-126 2013

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

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

Holzforschung Vol. 67 ( 3 ) page： 307-314 2013

Establishment of near infrared archaeometry Invited Reviewed

Inagaki, T.; Tsuchikawa, S.

NIR News Vol. 24 ( 7 ) page： 4-6 2013

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

Higa, S.; Kobori, H.; Tsuchikawa, S.

Applied Spectroscopy Vol. 67 ( 11 ) page： 1302-1307 2013

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

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 Vol. 89 ( 5 ) page： 595-606 2013

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

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

The Forestry Chronicle Vol. 89 ( 5 ) page： 36-43 2013

Time-Resolved Principal Component Imaging Analysis of Chlorophyll Fluorescence Induction for Monitoring Leaf Water Stress Reviewed

Kobori, H.; Tsuchikawa, S.

Applied Spectroscopy Vol. 67 ( 6 ) page： 594-599 2013

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

Tsuchikawa, S.; Schwanninger, S.

Applied Spectroscopy Review Vol. 48 page： 560-587 2013

Time of Flight Near Infrared Spectroscopy for Nondestructive Measurement of internal quality in Grapefruit Reviewed

Kurata, Y.; Tsuchida, T.; Tsuchikawa, S.

Journal of American Society of Horticultural Science Vol. 138 page： 225-228 2013

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

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

NIR News Vol. 24 ( 2 ) page： 4-5,8 2013

Time-Resolved Principal Component Imaging Analysis of Chlorophyll Fluorescence Induction for Monitoring Leaf Water Stress

Kobori, H, Tsuchikawa, S

Applied Spectroscopy Vol. 67 ( 6 ) page： 594-599 2013

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Papers - TSUCHIKAWA, Satoru