2024/03/27 更新

写真a

イナガキ テツヤ
稲垣 哲也
INAGAKI Tetsuya
所属
大学院生命農学研究科 森林・環境資源科学専攻 森林・環境資源科学 准教授
大学院担当
大学院生命農学研究科
学部担当
農学部 生物環境科学科
職名
准教授
連絡先
メールアドレス
ホームページ

学位 1

  1. 博士(農学) ( 2011年3月   名古屋大学 ) 

研究キーワード 16

  1. 植物工場

  2. 画像解析

  3. 木質科学

  4. ケモメトリクス

  5. 機械学習

  6. X線回折法

  7. THz時間領域分光法

  8. 近赤外分光法

  9. 分光分析

  10. 近赤外分光法

  11. 農業工学

  12. 機械学習

  13. 木質科学

  14. ケモメトリクス

  15. X線回折法

  16. THz分光法

研究分野 7

  1. ライフサイエンス / 森林科学

  2. ものづくり技術(機械・電気電子・化学工学) / 計測工学

  3. 情報通信 / 統計科学

  4. 環境・農学 / 農業環境工学、農業情報工学

  5. ものづくり技術(機械・電気電子・化学工学) / 計測工学

  6. 情報通信 / 統計科学

  7. ライフサイエンス / 森林科学

▼全件表示

現在の研究課題とSDGs 3

  1. 植物対話型植物工場の構築

  2. 木質素材の非破壊材質評価

  3. 農産物の非破壊品質評価

経歴 8

  1. 名古屋大学   生命農学研究科   准教授

    2021年4月 - 現在

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    国名:日本国

  2. 名古屋大学   大学院生命農学研究科   准教授

    2021年4月 - 現在

  3. 名古屋大学   大学院生命農学研究科   講師

    2016年9月 - 2021年3月

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    国名:日本国

  4. 名古屋大学   大学院生命農学研究科   講師

    2016年9月 - 2021年3月

  5. University of Northern British Columbia   研究員

    2011年10月 - 2012年3月

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    国名:カナダ

  6. 名古屋大学   大学院生命農学研究科   助教

    2011年4月 - 2017年8月

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    国名:日本国

  7. 名古屋大学   大学院生命農学研究科   助教

    2011年4月 - 2017年8月

  8. 日本学術振興会   DC1特別研究員   研究員

    2008年4月 - 2010年3月

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    国名:日本国

▼全件表示

学歴 3

  1. 名古屋大学   農学研究科   生物圏資源学専攻

    2008年4月 - 2011年3月

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    国名: 日本国

  2. 名古屋大学   農学研究科

    - 2008年3月

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    国名: 日本国

  3. 名古屋大学   農学部   応用生物科学科

    - 2006年3月

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    国名: 日本国

所属学協会 8

  1. 日本分光学会

  2. 近赤外研究会

  3. 日本木材加工技術協会

  4. 日本木材学会

  5. 近赤外研究会

  6. 日本木材学会

  7. 日本木材加工技術協会

  8. 日本分光学会

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委員歴 2

  1. 日本木材学会   常任理事  

    2022年 - 現在   

  2. 名古屋大学農学部同窓会   理事  

    2021年 - 現在   

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    団体区分:その他

受賞 7

  1. 日本木材学会賞

    2020年3月   一般社団法人日本木材学会   広帯域分光分析による木材の物性解析および非破壊材質評価

    稲垣哲也

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    受賞区分:学会誌・学術雑誌による顕彰 

  2. 2020年度全学教育科目担当教員顕彰

    2021年4月   名古屋大学教養教育院  

    2020年度春学期物理学実験担当

  3. 令和元年度コニカミノルタ画像科学奨励賞

    2020年3月   公益財団法人コニカミノルタ科学技術振興財団   近赤外ハイパースペクトラルイメージングのディープラーニング認識

    稲垣哲也

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    受賞区分:出版社・新聞社・財団等の賞 

  4. 日本木材学会賞

    2020年3月   一般社団法人日本木材学会   広帯域分光分析による木材の物性解析および非破壊材質評価

  5. 紙パルプ技術協会

    2018年10月   紙パルプ技術協会賞   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

  6. 印刷朝暘会賞

    2018年4月   一般財団法人印刷朝陽会   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

  7. NIR advance Award

    2013年3月   近赤外研究会  

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    受賞国:日本国

▼全件表示

 

論文 81

  1. Terahertz time-domain spectroscopy as a novel tool for crystallographic analysis in cellulose: cellulose I to cellulose II, tracing the structural changes under chemical treatment

    Wang Han, Kataoka Hiroki, Tsuchikawa Satoru, Inagaki Tetsuya

    CELLULOSE   29 巻 ( 6 ) 頁: 3143 - 3151   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-022-04493-x

    Web of Science

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

    Ryunosuke Kitamura, Tetsuya Inagaki and Satoru Tsuchikawa

    Optic Express   24 巻   頁: 3999-4009   2016年

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  3. Prediction of oven-dry density of wood by time-domain terahertz spectroscopy 査読有り

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

    Holzforschung     2013年

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    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(学術雑誌)  

    DOI: 10.1515/hf-2013-0013

  4. Difference of Cellulosic Crystalline Structure in Wood between Hydrothermal and Ageing Degradation Observed by NIRs and XRD 査読有り

    Tetsuya Inagaki, Heinz W. Siesler, Katsuya Mitsui and Satoru Tsuchikawa

    Biomacromolecules   11 巻   頁: 2300   2010年

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  5. Three-dimensional modeling of moisture transport in wood using near-infrared hyperspectral imaging and X-ray computed tomography in conjunction with finite element analysis

    Wenpeng Zeng, Takaaki Fujimoto, Tetsuya Inagaki, Satoru Tsuchikawa, Te Ma

    Journal of Wood Science   70 巻 ( 1 )   2024年12月

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    掲載種別:研究論文(学術雑誌)  

    In past studies, finite element analysis (FEA) methods have been used to simulate the thermal and moisture coupling of wood. However, challenges remain in achieving high-quality three-dimensional (3D) simulations, mainly because of the heterogeneous and complex structure of wood and its difficult-to-detect internal structure, which makes modeling challenging, in addition to the lack of robust experimental techniques to validate simulation results. In this study, the FEA simulation model was refined by combining X-ray computed tomography (CT) and near-infrared hyperspectral imaging (NIR-HSI). CT was used to probe the 3D density of wood, and a novel FEA tetrahedral mesh was constructed based on the results. The NIR-HSI method visualizes the moisture distribution during adsorption and desorption inside the wood. This result is then used to adjust the parameters of the FEA simulation model and as a reference value to evaluate the simulation results. The visualization and simulation results fit well with the theoretical properties. The simulation results can more accurately reflect the spatial distribution and transfer trend of wood moisture at different points in time. Therefore, the CT and NIR-HSI-based 3D heat and moisture-coupled FEA model of wood proposed in this study can be used as a basis for optimizing drying parameters to provide high-quality wood.

    DOI: 10.1186/s10086-023-02120-2

    Scopus

  6. Development of a sensitivity-enhanced fluorescence lifetime spectroscopic method for nondestructive quality monitoring of mature tomatoes during storage

    Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa

    Scientia Horticulturae   330 巻   2024年4月

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    掲載種別:研究論文(学術雑誌)  

    The decay of fluorescence lifetime (FLT) is an absolute indication for observing the environment surrounding the fluorescent molecules. This study presents the characterization of fluorescence intensity and the FLT in tomatoes, spanning from the green to the red stage, using a novel time-resolved and laser-induced fluorescence (TRLIF) spectroscopic system. Furthermore, the applicability of this method was assessed for evaluating the postharvest quality of commercially acquired red tomatoes. The results collectively indicate a progressive decrease in the FLT of the red tomatoes throughout shelf-life storage. The average FLT loss decreased by approximately 17, 26, 32, and 38% after 1, 2, 3, and 4 d, respectively. Furthermore, the first principal component scores of the time-resolved spectra were confirmed to be stable for early quality degradation monitoring purposes. This investigation highlights that the devised TRLIF spectroscopic technique is a non-destructive and robust method for studying the degradation of fluorescent compounds. It facilitates an in-depth exploration of the underlying mechanisms behind the fluorescent phenomena in postharvest research.

    DOI: 10.1016/j.scienta.2024.113059

    Scopus

  7. Three-dimensional visualization and detection of early bruise in apple based on near-infrared hyperspectral imaging coupled with geometrical influence correction

    Bin Li, Te Ma, Leshang Bai, Tetsuya Inagaki, Hayato Seki, Satoru Tsuchikawa

    Postharvest Biology and Technology   210 巻   2024年4月

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    掲載種別:研究論文(学術雑誌)  

    Visible-near-infrared (Vis-NIR) spectral imaging holds great promise for the automatic detection of fruit defects. However, uneven brightness resulting from fruit geometry and the limitations of one-directional imaging significantly restrict the current detection to a limited area. This study presents a rotation measurement system that combines a line-scan NIR-hyperspectral imaging (HSI) camera with a laser profile. A total of 72 apple samples with bruises in the central and edge regions were prepared. A 360° scanning approach was employed to collect HSI and shape data from the entire surface of the samples over a 6-h post-bruising period. Height and angle corrections were applied to eliminate the surface geometric influences on the HSI data, resulting in improved reflectance spectrum uniformity. A two-step principal component analysis method was employed for image enhancement, followed by a straightforward bruise detection technique using global segmentation and connected-domain selection. The results demonstrated an overall improvement in bruise detection over time. Moreover, the correction significantly enhanced the detection accuracy. After 6 h of bruising, the corrected data achieved a classification accuracy of 90.3% and an identification rate of 83.3% for central bruises and 61.1% for edge bruises, whereas the uncorrected data yielded 70.8%, 58.3%, and 31.9%, respectively. Thus, this study successfully detected early bruising across the entire surface of apples and improved the detection in low-intensity edge areas. The proposed method has the potential to contribute to the comprehensive evaluation of agricultural products with irregular geometries.

    DOI: 10.1016/j.postharvbio.2023.112753

    Scopus

  8. Investigation of the effects of tableting parameters on reliable quantitative terahertz spectroscopy

    Yuan Su, Yang Xu, Han Wang, Te Ma, Satoru Tsuchikawa, Tetsuya Inagaki

    Applied Physics A: Materials Science and Processing   130 巻 ( 2 )   2024年2月

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    掲載種別:研究論文(学術雑誌)  

    Particle size ratio, tablet thickness, and compaction pressure are three important tableting parameters that affect the obtained tablet spectrum. In this study, the single-factor test and response surface analysis (RSM) were adopted to examine how these three parameters and their interactions affect the analytical measurements performed over terahertz time-domain spectroscopy (THz-TDS). Tablet samples were composed of a different percent (wt-%) of acetylsalicylic acid within microcrystalline cellulose. Results indicate that change in absorption coefficient was found to be more obvious for a larger particle size ratio. Thinner tablets were sensitive to absorption coefficient effects created as the transmitted THz radiation propagates through the tablet interfaces. Compression pressure has a limited effect on the absorption coefficient. The particle size ratio had the largest effect on the coefficient of correlation of the quantitative regression model, followed by the compaction pressure, and the tablet thickness. In this study, the optimized tableting parameters were determined: tablet thickness of 0.48 mm, particle size ratio of about 1:1, and compaction pressure of 30 MPa. Under this condition, the R2 of the quantitative regression model of acetylsalicylic acid content was 0.971 and 0.998 at the range of acetylsalicylic acid mass fraction between 10 and 90 wt-%, 1 and 30 wt-%, respectively. This study provides a method to effectively reduce the scattering effect of spectral detection of tablets by improving the sample’s properties, to provide a reference for enhancing the reliability and accuracy of quantitative measurements.

    DOI: 10.1007/s00339-024-07302-3

    Scopus

  9. Primary assessment of macronutrients in durian (CV Monthong) leaves using near infrared spectroscopy with wavelength selection

    Thitima Phanomsophon, Natthapon Jaisue, Akarawhat Worphet, Nukoon Tawinteung, Lampan Khurnpoon, Ravipat Lapcharoensuk, Warawut Krusong, Pimpen Pornchaloempong, Panmanas Sirisomboon, Tetsuya Inagaki, Te Ma, Satoru Tsuchikawa

    Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy   304 巻   2024年1月

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    掲載種別:研究論文(学術雑誌)  

    Farmers would be able to regulate fertilization and produce quality durian if they knew the nutrient concentration in durian leaves. A long period of time for traditional nutritional content determination is needed. Therefore, near-infrared spectroscopy is a good method for nondestructive and quick nutrient content evaluation. The leaf sample matrices (fresh leaves, dried ground leaves, and dried ground leaf pellets) were scanned by Fourier transform near-infrared (FT-NIR) with a wavelength of 12,500–3,600 cm−1. Regression models were developed using partial least squares (PLS) with full wavelength, short wavelength, and selected wavelength by successive projections algorithm (SPA). In this study, the model for N and K concentration was acceptable and the prediction was considered good but for P content not had succeeded. As a result, the PLS-SPA model using fresh leaf samples for evaluating N content in durian leaves exhibited performance of r2 = 0.852, SEP = 0.14%, RPD = 2.63 and bias = −0.020%. The PLS-SPA model using dried ground leaf samples for evaluating K content in durian leaves exhibited performance of r2 = 0.820, SEP = 0.13%, RPD = 2.36 and bias = 0.006%. This research found that it is possible to apply NIR waves to predict N and K concentrations in durian leaves. It is not necessary to predict directly from the wavelengths associated with -N or -K bonds. Instead, NIR can measure them indirectly from the bonding of proteins, which are products formed by N and K. In addition, selecting the wavelength that is related to the value to be measured can produce results that are not significantly different from using full or short wavelengths. These models can assist farmers in rapidly predicting N and K content in durian leaves for immediate fertilizer adjustment.

    DOI: 10.1016/j.saa.2023.123398

    Scopus

  10. Validation study on light scattering changes in kiwifruit during postharvest storage using time-resolved transmittance spectroscopy

    Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa

    Scientific Reports   13 巻 ( 1 )   2023年12月

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    掲載種別:研究論文(学術雑誌)  

    Visible and near-infrared spectroscopy has been well studied for characterizing the organic compounds in fruit and vegetables from pre-harvest to late harvest. However, due to the challenge of decoupling of optical properties, the relationship between the collected samples’ spectral data and their properties, especially their mechanical properties (e.g., firmness, hardness, and resilience) is hard to understand. This study developed a time-resolved transmittance spectroscopic method to validate the light scattering changing characteristics in kiwifruit during shelf-life and in cold storage conditions. The experimental results demonstrated that the reduced scattering coefficient (μs′) of 846 nm inside kiwifruit decreased steadily during postharvest storage and is more evident under shelf-life than in cold storage conditions. Moreover, the correlation between the μs′ and the storage time was confirmed to be much higher than that using the external color indexes measured using a conventional colorimeter. Furthermore, employing time-resolved profiles at this single wavelength, an efficacious mathematical model has been successfully formulated to classify the stages of kiwifruit softening, specifically early, mid-, and late stages. Notably, classification accuracies of 84% and 78% were achieved for the shelf-life and cold storage conditions, respectively.

    DOI: 10.1038/s41598-023-43777-5

    Scopus

    PubMed

  11. Thermal behavior of heat-treated wood using two-dimensional correlation of near-infrared spectroscopy and differential scanning calorimetry

    Siti Hanifah Mahdiyanti, Tetsuya Inagaki, Muhammad Rosyid Ridho, Sri Nugroho Marsoem, Satoru Tsuchikawa

    Wood Science and Technology   57 巻 ( 6 ) 頁: 1485 - 1506   2023年11月

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    掲載種別:研究論文(学術雑誌)  

    Heat treatment of wood can decrease its heat capacity and thermal transitions, which are thermal behavior properties of wood. A calorimetric study that highlights the thermal behavior of the molecular mobility of materials is necessary to investigate the thermal degradation of wood. Furthermore, combining it with a nondestructive measurement technique would widen its scope of applicability, especially for wood in service or historical wood that cannot be altered or damaged by invasive methods. Neolamarckia cadamba (Roxb.) Bosser, also known as burflower-tree, a tropical fast-growing hardwood species that has become popular for light-construction works in the past decade, is treated at 90, 120, and 150 ℃ for a duration of 8 h to 3.5 months, scheduled logarithmically. Near-infrared spectroscopy and differential scanning calorimetry (DSC) were used to measure the chemical changes and thermal behavior of the wood before and after heat treatment. Two-dimensional correlation spectroscopy (2DCOS) analysis was then applied to assess the NIR second-derivative spectra and DSC thermograms. The results showed that 2DCOS analysis could assess NIR second-derivative spectra and DSC thermograms under careful observation, as DSC thermograms comprise both qualitative and quantitative information. It provides a new point of view in the non-destructive analysis of wood thermal degradation.

    DOI: 10.1007/s00226-023-01506-1

    Scopus

  12. Fit-free analysis of fluorescence lifetime imaging data using chemometrics approach for rapid and nondestructive wood species classification

    Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa

    Holzforschung   77 巻 ( 9 ) 頁: 724 - 733   2023年9月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Walter de Gruyter GmbH  

    Abstract

    Conventional fluorescence spectroscopy has been suggested as a valuable tool for classifying wood species rapidly and non-destructively. However, because it is challenging to conduct absolute emission intensity measurements, fluorescence analysis statistics are difficult to obtain. In this study, another dimension of fluorescence, that is, fluorescence lifetime, was further evaluated to address this issue. A time-resolved fluorescence spectroscopic measurement system was first designed, mainly using a streak camera, picosecond pulsed laser at 403 nm, and a spectroscope, to collect the fluorescence time-delay (FTD) profiles and steady-state fluorescence intensity (FI) spectra simultaneously from 15 wood species. For data analysis, principal component analysis was used to “compress” the mean-centered FTD and FI spectra. Then, support vector machine classification analysis was utilized to train the wood species classification model based on their principal component scores. To avoid overfitting, ten-fold cross-validation was used to train the calibration model using 70 % of the total samples, and the remaining 30 % hold-out validation was used to test its reproducibility. The cross-validation accuracies were 100 % (5 softwoods) and 96 % (10 hardwoods), with test-validation accuracies of 96 % and 89 %.

    DOI: 10.1515/hf-2023-0017

    Scopus

    その他リンク: https://www.degruyter.com/document/doi/10.1515/hf-2023-0017/pdf

  13. Development of a sensitivity-enhanced chlorophyll fluorescence lifetime spectroscopic method for nondestructive monitoring of fruit ripening and postharvest decay

    Ma Te, Inagaki Tetsuya, Tsuchikawa Satoru

    POSTHARVEST BIOLOGY AND TECHNOLOGY   198 巻   2023年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.postharvbio.2022.112231

    Web of Science

    Scopus

  14. Visualization of Sugar Content Distribution of White Strawberry by Near-Infrared Hyperspectral Imaging.

    Seki H, Ma T, Murakami H, Tsuchikawa S, Inagaki T

    Foods (Basel, Switzerland)   12 巻 ( 5 )   2023年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3390/foods12050931

    Scopus

    PubMed

  15. Review of near infrared hyperspectral imaging applications related to wood and wood products

    Schimleck Laurence, Ma Te, Inagaki Tetsuya, Tsuchikawa Satoru

    APPLIED SPECTROSCOPY REVIEWS   58 巻 ( 9 ) 頁: 585 - 609   2023年

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  16. Experimental study and three-dimensional modeling of moisture transport in wood by means of near-infrared hyperspectral imaging coupled with a heat and mass transfer simulation method 査読有り

    Ma Te, Morita Genki, Inagaki Tetsuya, Tsuchikawa Satoru

    HOLZFORSCHUNG   76 巻 ( 8 ) 頁: 699 - 710   2022年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2021-0203

    Web of Science

  17. Cognitive spectroscopy for the classification of rice varieties: A comparison of machine learning and deep learning approaches in analysing long-wave near-infrared hyperspectral images of brown and milled samples

    Onmankhong Jiraporn, Ma Te, Inagaki Tetsuya, Sirisomboon Panmanas, Tsuchikawa Satoru

    INFRARED PHYSICS & TECHNOLOGY   123 巻   2022年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.infrared.2022.104100

    Web of Science

  18. Production of Nanocellulose Film from Abaca Fibers 査読有り

    Lapuz Anniver Ryan, Tsuchikawa Satoru, Inagaki Tetsuya, Ma Te, Migo Veronica

    CRYSTALS   12 巻 ( 5 ) 頁: 601   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3390/cryst12050601

    Web of Science

  19. Rapid and nondestructive prediction of firmness, soluble solids content, and pH in kiwifruit using Vis-NIR spatially resolved spectroscopy

    Ma Te, Zhao Jian, Inagaki Tetsuya, Su Yuan, Tsuchikawa Satoru

    POSTHARVEST BIOLOGY AND TECHNOLOGY   186 巻   2022年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.postharvbio.2022.111841

    Web of Science

  20. Application of near-infrared spectroscopy to agriculture and forestry

    Tsuchikawa Satoru, Ma Te, Inagaki Tetsuya

    ANALYTICAL SCIENCES   38 巻 ( 4 ) 頁: 635 - 642   2022年4月

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  21. Moisture transport dynamics in wood during drying studied by long-wave near-infrared hyperspectral imaging

    Ma Te, Morita Genki, Inagaki Tetsuya, Tsuchikawa Satoru

    CELLULOSE   29 巻 ( 1 ) 頁: 133 - 145   2022年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-021-04290-y

    Web of Science

  22. Cognitive spectroscopy for the classification of rice varieties: A comparison of machine learning and deep learning approaches in analysing long-wave near-infrared hyperspectral images of brown and milled samples 査読有り 国際共著

    Jiraporn Onmankhong, Te Ma, Tetsuya Inagaki*, Panmanas Sirisomboon, Satoru Tsuchikawa

    Infrared Physics and Technology   123 巻   頁: 104100   2022年

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    担当区分:責任著者   記述言語:英語  

  23. Near-infrared spectroscopy and hyperspectral imaging can aid in the prediction and mapping of polyploid acacia hybrid wood properties in tree improvement programs

    Dang Duc Viet, Ma Te, Inagaki Tetsuya, Nguyen Tu Kim, Tsuchikawa Satoru

    HOLZFORSCHUNG   75 巻 ( 12 ) 頁: 1067 - 1080   2021年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2021-0024

    Web of Science

  24. Measuring the tensile strain of wood by visible and near-infrared spatially resolved spectroscopy

    Ma Te, Inagaki Tetsuya, Yoshida Masato, Ichino Mayumi, Tsuchikawa Satoru

    CELLULOSE   28 巻 ( 17 ) 頁: 10787 - 10801   2021年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-021-04239-1

    Web of Science

  25. Parameter Optimization of Vibrating and Comb-Brushing Harvesting of Lycium barbarum L. Based on FEM and RSM

    Zhao Jian, Ma Te, Inagaki Tetsuya, Chen Yun, Hu Guangrui, Wang Zhiwei, Chen Qingyu, Gao Zening, Zhou Jianguo, Wang Miaohai, Tsuchikawa Satoru, Chen Jun

    HORTICULTURAE   7 巻 ( 9 )   2021年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3390/horticulturae7090286

    Web of Science

  26. Finite Element Method Simulations and Experiments of Detachments of Lycium barbarum L.

    Zhao Jian, Ma Te, Inagaki Tetsuya, Chen Qingyu, Gao Zening, Sun Lijuan, Cai Haoxuan, Chen Chao, Li Chuanlin, Zhang Shixia, Tsuchikawa Satoru, Chen Jun

    FORESTS   12 巻 ( 6 )   2021年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3390/f12060699

    Web of Science

  27. Terahertz time-domain spectroscopy as a novel tool for crystallographic analysis in cellulose: the potentiality of being a new standard for evaluating crystallinity

    Wang Han, Tsuchikawa Satoru, Inagaki Tetsuya

    CELLULOSE   28 巻 ( 9 ) 頁: 5293 - 5304   2021年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-021-03902-x

    Web of Science

  28. Demonstration of the applicability of visible and near-infrared spatially resolved spectroscopy for rapid and nondestructive wood classification 査読有り 国際共著

    Ma Te, Inagaki Tetsuya, Tsuchikawa Satoru

    HOLZFORSCHUNG   75 巻 ( 5 ) 頁: 419 - 427   2021年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2020-0074

    Web of Science

  29. Rapid and nondestructive evaluation of hygroscopic behavior changes of thermally modified softwood and hardwood samples using near-infrared hyperspectral imaging (NIR-HSI) 査読有り 国際共著

    Ma Te, Schimleck Laurence, Inagaki Tetsuya, Tsuchikawa Satoru

    HOLZFORSCHUNG   75 巻 ( 4 ) 頁: 345 - 357   2021年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2019-0298

    Web of Science

  30. Non-destructive and fast method of mapping the distribution of the soluble solids content and pH in kiwifruit using object rotation near-infrared hyperspectral imaging approach

    Ma Te, Xia Yu, Inagaki Tetsuya, Tsuchikawa Satoru

    POSTHARVEST BIOLOGY AND TECHNOLOGY   174 巻   2021年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.postharvbio.2020.111440

    Web of Science

  31. Rapid and nondestructive evaluation of soluble solids content (SSC) and firmness in apple using Vis-NIR spatially resolved spectroscopy 査読有り 国際共著

    Ma Te, Xia Yu, Inagaki Tetsuya, Tsuchikawa Satoru

    POSTHARVEST BIOLOGY AND TECHNOLOGY   173 巻   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/jpostharvbio.2020.111417

    Web of Science

  32. Non-destructive and fast method of mapping the distribution of the soluble solids content and pH in kiwifruit using object rotation near-infrared hyperspectral imaging approach 査読有り 国際共著

    T. Ma, Y. Xia, T. Inagaki, S. Tsuchikawa

    Post Harvest Biology and Technology   174 巻   頁: 111440   2021年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  33. Terahertz time-domain spectroscopy as a novel tool for crystallographic analysis in cellulose 査読有り

    Wang Han, Horikawa Yoshiki, Tsuchikawa Satoru, Inagaki Tetsuya

    CELLULOSE   27 巻 ( 17 ) 頁: 9767 - 9777   2020年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-020-03508-9

    Web of Science

  34. Rapid and non-destructive seed viability prediction using near-infrared hyperspectral imaging coupled with a deep learning approach

    Ma Te, Tsuchikawa Satoru, Inagaki Tetsuya

    COMPUTERS AND ELECTRONICS IN AGRICULTURE   177 巻   2020年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.compag.2020.105683

    Web of Science

  35. Physical and Mechanical Properties of Fast Growing Polyploid Acacia Hybrids (A. auriculiformisxA. mangium) from Vietnam 査読有り 国際共著

    Dang Duc Viet, Te Ma, Tetsuya Inagaki, Nguyen Tu Kim, Nghiem Quynh Chi, Satoru Tsuchikawa

    FORESTS   11 巻 ( 7 )   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:MDPI  

    Acacia plants are globally important resources in the wood industry, but particularly in Southeast Asian countries. In the present study, we compared the physical and mechanical properties of polyploidAcacia(3x and 4x) clones with those of diploid (2x) clones grown in Vietnam. We randomly selected 29 trees aged 3.8 years from different taxa for investigation. BV10 and BV16 clones represented the diploid controls; X101 and X102 were the triploid clones; and AA-4x, AM-4x, and AH-4x represented neo-tetraploid families ofAcaciaauriculiformis, Acaciamangium,and their hybrid clones. The following metrics were measured in each plant: stem height levels, basic density, air-dry equilibrium moisture content, modulus of rupture (MOR), modulus of elasticity (MOE), compression strength, and Young's modulus. We found that the equilibrium moisture content significantly differed among clones, and basic density varied from pith-to-bark and in an axial direction. In addition, the basic density of AA-4x was significantly higher than that of the control clones. Furthermore, the MOR of AM-4x was considerably lower than the control clones, whereas the MOE of X101 was significantly higher than the control values. The compression strength of AM-4x was significantly lower than that of the control clones, but AH-4x had a significantly higher Young's modulus. Our results suggest that polyploidAcaciahybrids have the potential to be alternative species for providing wood with improved properties to the forestry sector of Vietnam. Furthermore, the significant differences among the clones indicate that opportunities exist for selection and the improvement of wood quality via selective breeding for specific properties.

    DOI: 10.3390/f11070717

    Web of Science

  36. Rapidly visualizing the dynamic state of free, weakly, and strongly hydrogen-bonded water with lignocellulosic material during drying by near-infrared hyperspectral imaging 査読有り

    Ma Te, Inagaki Tetsuya, Tsuchikawa Satoru

    CELLULOSE   27 巻 ( 9 ) 頁: 4857 - 4869   2020年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10570-020-03117-6

    Web of Science

  37. Simultaneous detection of density, moisture content and fiber direction of wood by THz-time domain spectroscopy 査読有り

    M. Kashima, S. Tsuchikawa, T. Inagaki

    Journal of Wood Science   66 巻   頁: 27   2020年4月

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  38. Cognitive spectroscopy for wood species identification: near infrared hyperspectral imaging combined with convolutional neural networks

    Kanayama Hideaki, Ma Te, Tsuchikawa Satoru, Inagaki Tetsuya

    ANALYST   144 巻 ( 21 ) 頁: 6438 - 6446   2019年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1039/c9an01180c

    Web of Science

    PubMed

  39. Analysis of wood thermal degradation using 2D correlation of near infrared and visible-light spectroscopy

    Mahdiyanti Siti Hanifah, Inagaki Tetsuya, Tsuchikawa Satoru

    JOURNAL OF NEAR INFRARED SPECTROSCOPY   27 巻 ( 5 ) 頁: 354 - 369   2019年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1177/0967033519863878

    Web of Science

  40. Electrode polarization effects on interfacial kinetics of ionic liquid at graphite surface: An extended lagrangian-based constant potential molecular dynamics simulation study

    Inagaki Taichi, Nagaoka Masataka

    JOURNAL OF COMPUTATIONAL CHEMISTRY   40 巻 ( 24 ) 頁: 2131 - 2145   2019年9月

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    記述言語:日本語  

    DOI: 10.1002/jcc.25865

    Web of Science

  41. Three-dimensional grain angle measurement of softwood (Hinoki cypress) using near infrared spatially and spectrally resolved imaging (NIR-SSRI)

    Ma Te, Inagaki Tetsuya, Tsuchikawa Satoru

    HOLZFORSCHUNG   73 巻 ( 9 ) 頁: 817 - 826   2019年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2018-0273

    Web of Science

  42. Determination of Dielectric Function of Water in THz Region in Wood Cell Wall Result in an Accurate Prediction of Moisture Content

    Wang Han, Inagaki Tetsuya, Hartley Ian D., Tsuchikawa Satoru, Reid Matthew

    JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES   40 巻 ( 6 ) 頁: 673 - 687   2019年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s10762-019-00594-0

    Web of Science

  43. A new approach based on a combination of capacitance and near-infrared spectroscopy for estimating the moisture content of timber

    Vu Thi Hong Tham, Inagaki Tetsuya, Tsuchikawa Satoru

    WOOD SCIENCE AND TECHNOLOGY   53 巻 ( 3 ) 頁: 579 - 599   2019年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s00226-019-01077-0

    Web of Science

  44. Near infrared estimation of concentration of ginsenosides in Asian ginseng 査読有り

    Tetsuya Inagaki, Norihisa Katayama, Rae-Kwang Cho, Xijun Chen, Satoru Tsuchikawa

    JOURNAL OF NEAR INFRARED SPECTROSCOPY   27 巻 ( 2 ) 頁: 115 - 122   2019年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SAGE PUBLICATIONS LTD  

    In this study, the feasibility of near infrared reflectance spectroscopy for the quality evaluation of the main bioactive compounds, ginsenosides, in Panax ginseng was examined. Second derivative NIR spectra of standard reagents of ginsenoside Rg(1), Re, Rb-1, Rc, Rb-2 and Rd were used for analysis. Characteristic bands were observed at around 5250 cm(-1) in the spectra of ginsenoside Rg(1) group (including Rg(1) and Re); however, this was not to be observed on the spectra of ginsenoside Rb-1 group (including Rb-1, Rc, Rb-2 and Rd). PLS regression models were constructed of air-dry ginseng powder samples and ginsenoside content in ginsengs was determined by HPLC methods. The calibration models covered various types of ginseng (white ginseng, red ginseng and bleached ginseng) from various cultivated areas (Japan, China and Korea) and were well established for each kind of ginsenoside. It was shown that NIR spectroscopy can be used for the accurate prediction of ginsenoside.

    DOI: 10.1177/0967033518814851

    Web of Science

  45. Rapid identification of wood species by near-infrared spatially resolved spectroscopy (NIR-SRS) based on hyperspectral imaging (HSI)

    Ma Te, Inagaki Tetsuya, Ban Mayuka, Tsuchikawa Satoru

    HOLZFORSCHUNG   73 巻 ( 4 ) 頁: 323 - 330   2019年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1515/hf-2018-0128

    Web of Science

  46. DETERMINATION OF CAROTENOIDS AND DOBI CONTENT IN CRUDE PALM OIL BY SPECTROSCOPY TECHNIQUES: COMPARISON OF RAMAN AND FT-NIR SPECTROSCOPY

    Rayakorn Nokkaew, Vittaya Punsuvon, Tetsuya Inagaki, Satoru Tsuchikawa

    INTERNATIONAL JOURNAL OF GEOMATE   16 巻 ( 55 ) 頁: 92 - 98   2019年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:GEOMATE INT SOC  

    Crude palm oil (CPO) is a rich source of carotenoids which are a precursor of vitamin A as an important antioxidant. Carotenoids and Deterioration Of Bleachability Index (DOBI) are important factors to indicated quality of CPO. The conventional method for DOBI and carotenoids determination use UV-Vis spectrophotometry and HPLC, respectively which methods use solvents and spend time for analysis. This research interests Raman and FT-NIR spectroscopy for carotenoids and DOBI determination due to those techniques are an alternative technique for rapid measurement, non-destruction of material, and environmental suitability. The results indicated that Raman is better for determination than FT-NIR spectrometry. In Raman analysis, multiplicative scatter correction (MSC) and standard normal variate (SNV) treated methods were the best models for carotenoids and DOBI, respectively. The bands of carotenoids were at 1,100 and 1,500 cm(-1) wavenumber. Validation on carotenoids produced 0.94 of correlation coefficient (R), 0.88 of coefficient of determination (R-2), 40.65 ppm of root mean square error of prediction (RMSEP) and 3.25 of the ratio of standard error of prediction to standard deviation (RPD). The validation of DOBI produced 0.76 of R, 0.57 of R-2, 0.31 of RMSEP, 1.92 of RPD of 1.92. The limitation of carotenoids and DOBI determination using FT-NIR is having sufficient concentration of carotenoids for analysis. In addition, data for various samples regarding location, season, and oil palm species are important to build models for precise prediction.

    DOI: 10.21660/2019.55.4813

    Web of Science

  47. Effect of knots and holes on the modulus of elasticity prediction and mapping of sugi (Cryptomeria japonica) veneer using near-infrared hyperspectral imaging (NIR-HSI)

    Imran Arra'd Sofianto, Tetsuya Inagaki, Te Ma, Satoru Tsuchikawa

    HOLZFORSCHUNG   73 巻 ( 3 ) 頁: 259 - 268   2019年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WALTER DE GRUYTER GMBH  

    Naturally occurring knots reduce the mechanical strength of wood. Veneers from sugi (Cryptomeria japonica) served as research material to study the effect of knots and holes. Veneer samples were first subjected to a three-point bending test to obtain measured modulus of elasticity (MOE) values. Then, near-infrared (NIR) hyperspectral imaging (HSI) was used to construct a prediction model and map the predicted MOE values. This is the first attempt for MOE prediction from the entire veneer surface based on NIR-HSI technology, while the mathematical part relies on chemometrics and cross-validation partial least squares regression (CV-PLSR). Maps of MOE prediction values could distinguish between latewood (LW) and earlywood (EW), as well as between a sound knot and a dead knot.

    DOI: 10.1515/hf-2018-0060

    Web of Science

  48. Non-destructive evaluation of wood stiffness and fiber coarseness, derived from SilviScan data, via near infrared hyperspectral imaging

    Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa

    JOURNAL OF NEAR INFRARED SPECTROSCOPY   26 巻 ( 6 ) 頁: 398 - 405   2018年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SAGE PUBLICATIONS LTD  

    Near infrared hyperspectral imaging combined with partial least squares regression analysis was used to evaluate wood stiffness (modulus of elasticity) and fiber coarseness. Five samples with normal wood and compression wood collected from two Japanese Cedar (Cryptomeria japonica) trees were analyzed. To achieve high reliability of the prediction values, a SilviScan system (X-ray densitometry, X-ray diffractometry, and optical microscopy) with the high spatial resolution was used for measuring reference data. The measurement interval for modulus of elasticity and fiber coarseness was 1 mm and 25 mu m, respectively. After spectral pre-treatment and key wavelengths selection, partial least squares analysis was applied to calibrate near infrared data to reference values. The determination coefficient (R-CV(2)) of modulus of elasticity was 0.66 with a root mean square error of cross validation (RMSECV) of 1.80 GPa. For the constructed fiber coarseness calibration model, R-CV(2) and RMSECV were 0.62 and 35.02 mu m/g, respectively. Finally, modulus of elasticity and fiber coarseness mapping results show detailed information (156 mu m/pixel) at the grown ring level. The differences among earlywood, latewood, and compression wood were all well identifiable.

    DOI: 10.1177/0967033518808053

    Web of Science

  49. Optical characteristics of Douglas fir at various densities, grain directions and thicknesses investigated by near-infrared spatially resolved spectroscopy (NIR-SRS)

    Te Ma, Gary Schajer, Tetsuya Inagaki, Zarin Pirouz, Satoru Tsuchikawa

    HOLZFORSCHUNG   72 巻 ( 9 ) 頁: 789 - 796   2018年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WALTER DE GRUYTER GMBH  

    A near-infrared spatially resolved spectroscopy (NIR-SRS) system, also called the hyperspectral imaging system, was applied in a line scanning model combined with a concentrated halogen light source (empty set 1 mm), and spatially resolved reflectance images of Douglas fir [Pseudotsuga menziesii (Mirb.) Franco] wood were obtained. The samples with various densities, grain directions and thicknesses were observed in the NIR range of 1000-1600 nm. Then, a nonlinear curve-fitting algorithm was applied based on the steady-state diffusion theory model to estimate the absorption coefficient (mu'(s)), and reduced scattering coefficients (mu(a)),( )both parallel and perpendicular to the grain direction at each measurement position. The absorption scattering coefficients at 1457 nm and two kinds of reduced scattering coefficients at 1002 nm were highly correlated with wood densities measured by an X-ray densitometer. The correlation coefficients were 0.953 and 0.987 for 3 mm and 5 mm samples, respectively, while three optical profiles were combined. It can be concluded that NIR-SRS is a fast and simple method for measuring the optical characteristics of softwood, although it has a non-homogeneous cellular structure. Sub-surface density and grain direction could be predicted with satisfactory accuracy based on a few key wavelengths without relying on multivariate statistical analysis.

    DOI: 10.1515/hf-2017-0213

    Web of Science

  50. Determination of physical and chemical properties and degradation of archeological Japanese cypress wood from the Tohyamago area using near-infrared spectroscopy

    Tetsuya Inagaki, Hitoshi Yonenobu, Yuuki Asanuma, Satoru Tsuchikawa

    JOURNAL OF WOOD SCIENCE   64 巻 ( 4 ) 頁: 347 - 355   2018年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER JAPAN KK  

    Here, we evaluated the application of near-infrared (NIR) spectroscopy for estimating the degradation level of archeological wood samples from the Tohyamago area, the dendrochronological ages of which were also determined. The wood samples were radially cut from three logs obtained from the Tohyamago area. NIR reflectance spectra were measured from the tangential faces of air- and oven-dried wood samples using a Fourier transform NIR spectrophotometer. The second derivative spectra within the wavenumber range of 6400-5200 cm(-1), in which the effect of moisture content in wood is suspected to be insignificant, showed a characteristic behavior with age. By comparing the second derivative spectral change in our wood samples with that in wood degraded by aging, thermal treatment, fungal attack, and lightning reported in the literature, we found that the second derivative spectra of wood samples from one log was similar to those of wood degraded by hygro-thermal treatment, whereas those of wood samples from another log was similar to those of wood degraded by brown-rot fungi. The physical and chemical properties of archeological wood were well predicted using a combination of partial least square regression analysis and NIR spectroscopy.

    DOI: 10.1007/s10086-018-1718-8

    Web of Science

  51. Noncontact evaluation of soluble solids content in apples by near-infrared hyperspectral imaging

    Te Ma, Xinze Li, Tetsuya Inagaki, Haoyu Yang, Satoru Tsuchikawa

    JOURNAL OF FOOD ENGINEERING   224 巻   頁: 53 - 61   2018年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCI LTD  

    Near-infrared (NIR) hyperspectral imaging was used to evaluate soluble solids content (SSC) in 'Fuji' apples [Malus sylvestris (L.) Mill. var. domestica (Borkh. Mansf.)]. Eighty 'Fuji' apples were analyzed by collecting four small block samples from each one (approximately 2.0 cm x 2.0 cm x 1.5 cm). Partial least squares (PLS) regression analysis was performed to determine the relation between SSC reference data and NIR spectral data measured from each sample. The cross-validation coefficient of determination (r(2)) between predicted and measured SSC values is 0.89 with a root mean squared error of cross-validation (RMSECV) of 0.55%. Then, we successfully mapped SSC at a high spatial resolution (375 mu m per pixel). In addition, the absorption and reduced scattering coefficients of the measured samples were determined based on a diffusion theory model. The absorption coefficients are positively correlated to the SSC values (chemical information), whereas water cored tissue content (physical information) causes a characteristic change in light scattering coefficients. The fitting results were validated by Monte Carlo simulation, and the light penetration depth in 'Fuji' apples was estimated to be around 033 cm at 1198 nm and 0.17 cm at 1450 nm, respectively. (C) 2017 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.jfoodeng.2017.12.028

    Web of Science

  52. Selective assessment of duplex heat-treated wood by near-infrared spectroscopy with principal component and kinetic analyses

    Tetsuya Inagaki, Yuuki Asanuma, Satoru Tsuchikawa

    JOURNAL OF WOOD SCIENCE   64 巻 ( 1 ) 頁: 6 - 15   2018年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER JAPAN KK  

    We selectively assessed the thermal and hygrothermal treatment times of duplex heat-treated samples from the softwood hinoki cypress (Chamaecyparis obtusa) and the hardwood Japanese zelkova (Zelkova serrata) using near-infrared (NIR) spectroscopy with principal component analysis (PCA) and spectral-kinetic analysis. Wood samples from each species were thermally or hygrothermally treated at 120, 130, 150, and 180 A degrees C, and the second-derivative spectra of these samples in the 6300-5450 cm(-1) range, where moisture content has the smallest effect, were then subjected to PCA. The master curve that was calculated by kinetic analysis successfully explained changes in the first principal component (PC1) scores with thermal treatment time for all temperatures. The angles between the PC1 loadings that explained the spectral variation due to thermal and hygrothermal treatment were 79A degrees for hinoki and 80A degrees for zelkova. Thus, calculation of the inner product between the second-derivative spectra of duplex heat-treated wood and a loading vector that explained the spectral variation due to thermal or hygrothermal treatment allowed us to selectively assess the thermal and hygrothermal treatment times.

    DOI: 10.1007/s10086-017-1670-z

    Web of Science

  53. Effect of cellular structure on the optical properties of wood

    Mayuka Ban, Tetsuya Inagaki, Te Ma, Satoru Tsuchikawa

    JOURNAL OF NEAR INFRARED SPECTROSCOPY   26 巻 ( 1 ) 頁: 53 - 60   2018年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SAGE PUBLICATIONS LTD  

    To construct robust calibrations of wood properties by near infrared spectroscopy, one must independently evaluate the spectral contributions of light absorption and light scattering. However, the light propagation in wooden cellular structures is difficult to interpret because these structures are complex, heterogeneous, and anisotropic. This study investigates the reduced scattering coefficients of softwood and hardwood (with ring-porous or diffuse-porous vessels) at 846 nm by time-resolved spectroscopy. It also evaluates the effect of wooden cellular structure and air-dry density on the light propagation. After determining the reduced scattering coefficients, we observed cross-sectional microscopic images of the wood samples. Eighty-five percent of the variation in the reduced scattering coefficients was explainable by the air-dry density, area ratio of the cell wall, and the median pore area. Monte Carlo simulations of the light propagation through wood revealed that most of the photon transport occurs in the cell-wall substance.

    DOI: 10.1177/0967033518757233

    Web of Science

  54. A novel combined application of capacitive method and near-infrared spectroscopy for predicting the density and moisture content of solid wood

    Vu Thi Hong Tham, Tetsuya Inagaki, Satoru Tsuchikawa

    WOOD SCIENCE AND TECHNOLOGY   52 巻 ( 1 ) 頁: 115 - 129   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SPRINGER  

    The use of a capacitive method and near-infrared (NIR) spectroscopy to simultaneously predict the density and moisture content (MC) of wood samples was investigated. Prediction accuracy of both methods was individually investigated by multivariate analyses. The capacity and absorbance at two wavelengths in the NIR range were combined to predict both the properties by the specific models. All wavelength combinations in the range of 908-1676 nm were tested, and the best combination yielding the highest coefficient of determination (R (2)) was chosen. This novel method showed a strong correlation between predicted and measured data, independent of sample thickness and wood species. The prediction accuracy of the wood samples, from green wood to oven-dried conditions, showed promising results for all thicknesses, with R (2) = 0.79, root-mean-square error of cross-validation (RMSECV) = 0.10 g/cm(3), and residual predictive deviation (RPD) = 2.22 for density and R (2) = 0.80, RMSECV = 25.70%, and RPD = 2.22 for MC. In the case of below fiber saturation point to oven-dried state, R (2) value was slightly decreased in the prediction of MC and slightly increased in the prediction of density, but RMSECV of MC declined significantly (maximum 5.46%) compared to the range of MC from saturated point (maximum 39.56%). These results were considerably better than those obtained by modeling the capacitive or NIR method individually, and improvement was particularly apparent in estimating density. The results suggest the possibility of a new device combining the capacitive method and NIR spectroscopy to predict density and MC more accurately.

    DOI: 10.1007/s00226-017-0974-x

    Web of Science

  55. Near-infrared hyperspectral imaging for classification of mung bean seeds

    Kaewkarn Phuangsombut, Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa, Anupun Terdwongworakul

    INTERNATIONAL JOURNAL OF FOOD PROPERTIES   21 巻 ( 1 ) 頁: 799 - 807   2018年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & FRANCIS INC  

    Hard mung bean seeds pose a problem in the sprouting process as they develop mold and infect neighboring seeds. Near-infrared hyperspectral imaging combined with partial least squares discriminant analysis was applied to develop a classifying model to separate hard mung beans from normal ones. The orientation of the measured beans was found to affect the classification result. The optimal partial least squares discriminant analysis model based on all orientations resulted in a correlation coefficient (R) of 0.919 with a root mean squared error of prediction of 0.197. The non-germinative parts were mapped and were concentrated at one end of the bean. Finally, a germinability index was proposed according to the proportion of colored areas between the germinative and non-germinative parts from the hyperspectral imaging results.

    DOI: 10.1080/10942912.2018.1476378

    Web of Science

  56. Quality Evaluation of Engineered Wood by THz-TDS

    Moe Kashima, Satoru Tsuchikawa, Tetsuya Inagaki

    2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)     2018年

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    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:IEEE  

    This study attempts simultaneous prediction of grain angle, density and moisture content by THz time domain spectroscopy (THz-TDS) which has sufficient spatial resolution and transparency for wood. Terahertz waves transmitted through wood contain information on moisture content, density, grain angle and crystallinity of the sample. In this study, we measured spectra of 14 kinds of wood (5 soft wood, 9 hard woods) at various moisture contents and air-dried douglas fir while rotating the sample against the polarization of the terahertz wave. It was shown that the fiber orientation, density and moisture content of wood can be predicted simultaneously from the calculated complex permittivity.

    Web of Science

  57. Dynamic behavior of wood chemical components under drying process measured by near infrared spectroscopy

    Shiho Sugii, Takaaki Fujimoto, Harusa Tsutsumi, Tetsuya Inagaki, Satoru Tsuchikawa

    JOURNAL OF NEAR INFRARED SPECTROSCOPY   25 巻 ( 6 ) 頁: 400 - 406   2017年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:SAGE PUBLICATIONS LTD  

    This study examined the dynamic behavior of wood chemical components during the drying process using near infrared spectroscopy. Principal component analysis and generalized two-dimensional correlation spectroscopy were applied to identify significant absorption bands from the heavily overlapping near infrared spectra. The near infrared spectra were successively acquired over the moisture content range of 60-11%. The principal component analysis scores indicated that the wood-water interaction in the moisture content range of 60-46% significantly differed from that in the range of 45-11%. The synchronous 2D correlation spectrum constructed from the spectra in the moisture content range of 60-46% revealed that the cell wall components and water molecules responded to the drying process even though the wood exceeded the fiber saturation point. In the moisture content range of 45-11%, the H-bonded OH groups in the crystalline region of cellulose clearly increased with the decrease in bound water. Moreover, the sequential order of events was also clarified from the asynchronous spectrum.

    DOI: 10.1177/0967033517733379

    Web of Science

  58. High-Resolution and Non-destructive Evaluation of the Spatial Distribution of Nitrate and Its Dynamics in Spinach (Spinacia oleracea L.) Leaves by Near-Infrared Hyperspectral Imaging 査読有り

    Hao-Yu Yang, Tetsuya Inagaki, Te Ma, Satoru Tsuchikawa

    FRONTIERS IN PLANT SCIENCE   8 巻   2017年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:FRONTIERS MEDIA SA  

    Nitrate is an important component of the nitrogen cycle and is therefore present in all plants. However, excessive nitrogen fertilization results in a high nitrate content in vegetables, which is unhealthy for humans. Understanding the spatial distribution of nitrate in leaves is beneficial for improving nitrogen assimilation efficiency and reducing its content in vegetables. In this study, near-infrared (NIR) hyperspectral imaging was used for the non-destructive and effective evaluation of nitrate content in spinach (Spinacia oleracea L.) leaves. Leaf samples with different nitrate contents were collected under various fertilization conditions, and reference data were obtained using reflectometer apparatus RQflex 10. Partial least squares regression analysis revealed that there was a high correlation between the reference data and NIR spectra (r(2) = 0.74, root mean squared error of cross-validation = 710.16 mg/kg). Furthermore, the nitrate content in spinach leaves was successfully mapped at a high spatial resolution, clearly displaying its distribution in the petiole, vein, and blade. Finally, the mapping results demonstrated dynamic changes in the nitrate content in intact leaf samples under different storage conditions, showing the value of this non-destructive tool for future analyses of the nitrate content in vegetables.

    DOI: 10.3389/fpls.2017.01937

    Web of Science

  59. 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 ONE   12 巻 ( 5 ) 頁: e0176920   2017年5月

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    記述言語:英語   掲載種別:研究論文(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

  60. Calibration of SilviScan data of Cryptomeria japonica wood concerning density and microfibril angles with NIR hyperspectral imaging with high spatial resolution

    Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa

    HOLZFORSCHUNG   71 巻 ( 4 ) 頁: 341 - 347   2017年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:WALTER DE GRUYTER GMBH  

    Wood density and microfibril angle (MFA) are strongly correlated with wood stiffness, swelling/shrinkage, and its anisotropy. Understanding the spatial distribution of these data is critical for solid timber applications. In this study, near-infrared (NIR) hyperspectral imaging has been calibrated for evaluation of wood density and MFA in an effective manner. Briefly, five wood samples collected from both normal wood (NW) and compression wood (CW) moieties of two different Cryptomeria japonica trees were analyzed. Partial least squares (PLS) regression analysis was performed to determine the relationship between X-ray densitometry data obtained by SilviScan and NIR spectra, and cross-validation (leave-one-out) approach served for prediction performances. The validation coefficient of determination (r(2)) between the predicted densities by the NIR technique and the X-ray data was 0.83 with a root mean squared error of cross-validation (RMSECV) of 105.2 kg m(-3). Regarding MFA, the r(2) was 0.77 and RMSECV 5.36 degrees. Wood density was successfully maped as well as the MFA at a high spatial resolution. As a result, the detection of annual growth ring features and evaluation of aspects of heterogeneous wood quality has been facilitated. The mapping results were visually checked by looking at the difference between earlywood (EW) and latewood (LW) for density and by means of the Maule color reaction indicating high lignin contents in CW in terms of MFA validation as CWs have high MFA values.

    DOI: 10.1515/hf-2016-0153

    Web of Science

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

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

      23 巻   頁: 23-29   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  62. Stiffness and moisture content prediction model of wooden veneer using fast online near-infrared (NIR) spectroscopic system 査読有り

    Forestry Research and Engineering: International Journal   1 巻   頁: 00006   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  63. 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

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    記述言語:英語  

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

    Imran Arra'd Sofianto, Tetsuya Inagaki, Kouchi Kato, Mariya Itoh, Satoru Tsuchikawa

    INTERNATIONAL WOOD PRODUCTS JOURNAL   8 巻 ( 4 ) 頁: 193 - 200   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:TAYLOR & 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

    Web of Science

  65. 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

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    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(学術雑誌)  

    DOI: 10.1007/s00339-016-9763-x

  66. 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

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    担当区分:責任著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  67. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  68. 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

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  69. 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

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  70. 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

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  71. 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

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    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(学術雑誌)  

  72. 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

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1080/17480272.2014.923937

  73. 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

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    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(学術雑誌)  

    DOI: 10.1007/s10762-014-0095-7

  74. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  75. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s00226-010-0379-6

  76. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  77. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  78. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  79. 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

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  80. 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

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

  81. 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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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

▼全件表示

書籍等出版物 9

  1. Near-Infrared Spectroscopy: Theory, Spectral Analysis, Instrumentation, and Applications

    尾崎, 幸洋, Huck, Christian, 土川, 覚, Engelsen, Søren Balling( 担当: 共著 ,  範囲: “Time-of-Flight Spectroscopy”, “Wooden Material and Environmental Sciences”)

    Springer  2020年11月  ( ISBN:9811586470

     詳細を見る

    総ページ数:601   記述言語:英語

    CiNii Books

    ASIN

  2. “Time-of-Flight Spectroscopy”, “Wooden Material and Environmental Sciences”

    T. Inagaki( 担当: 共著 ,  範囲: Time-of-Flight Spectroscopy”, “Wooden Material and Environmental Sciences”)

    Near-Infrared Spectroscopy-Theory, Spectral Analysis, Instrumentation, and Applications-, Editor: Y. Ozaki, C. Huck, S. Tsuchikawa  2020年 

  3. 近赤外分光イメージング法の農業・食品分野への応用

    土川覚、稲垣哲也、馬特( 担当: 共著)

    月刊画像ラボ  2020年 

  4. 近赤外ハイパースぺクトラル画像のディープラーニング認識

    稲垣哲也

    検査技術  2020年 

  5. The Encyclopedia of Archaeological Sciences

    Sandra L. López Varela( 担当: 共著 ,  範囲: Paper Analysis)

    Wiley-Blackwell  2018年12月  ( ISBN:047067461X

     詳細を見る

    総ページ数:1992   記述言語:英語

    CiNii Books

    ASIN

  6. 実験講座(24)近赤外分光法による木質素材の測定─留意点 ─ 査読有り

    稲垣哲也( 担当: 単著)

    木材工業  2015年4月 

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    記述言語:日本語

  7. Establishment of Near Infrared Archaeometry 査読有り

    ( 担当: 共著)

    NIR news  2013年 

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    記述言語:英語

  8. Paper Analysis 査読有り 国際共著

    S. Tsuchikawa, M. Te, T. Inagaki( 担当: 共著 ,  範囲: Paper Analysis)

    The Encyclopedia of Archaeological Sciences, John Wiley & Sons, Inc. 

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    記述言語:英語 著書種別:学術書

  9. Pythonを用いたスペクトルデータのケモメトリクス(機械学習)解析

    Tetsuya Inagaki( 範囲: https://www.udemy.com/course/spectra_chemo_python/?referralCode=D7C73F7FBC6B6A4B8DAB)

▼全件表示

MISC 4

  1. Application of Near-Infrared Spectroscopy to Forest and Wood Products

    Satoru Tsuchikawa, Tetsuya Inagaki, Te Ma  

    Current Forestry Reports9 巻 ( 6 ) 頁: 401 - 412   2023年12月

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    掲載種別:書評論文,書評,文献紹介等  

    Purpose of Review: Forest and wood products are often characterized by a uniformity of quality attributes, which necessitates the development of rapid and non-destructive quality evaluation methods to ensure their optimal quality. Near-infrared spectroscopy (NIRS) represents a highly suitable approach for the characterization of organic compounds, and is generally combined with sophisticated multivariate analysis methods. This review article presents a range of scientific and technical reports showcasing the successful use of NIRS for evaluating forest and wood products, mainly published within the past 5 years. Recent Findings: Continuous advancements in spectral imaging techniques and the integration of big-data analytics have greatly enhanced the capabilities of NIR instrumentation, enabling its widespread application across diverse fields. Although NIR spectral imaging methods do have some limitations when it comes to online grading, they can still be used to test small quantities of samples at a batch level. Moreover, the ever-increasing use of handheld devices has made NIRS easily accessible. Summary: We aim to provide a summary of new research in basic spectroscopic research, integrating the improvements of spectral imaging methods and big-data analytics. Furthermore, low-cost and portable devices have been produced, enabling remote analysis and further expanding the scope of NIRS applications. Looking forward, we anticipate that continued advancements in this field will enable even wider applications of NIRS for online or at-line quality monitoring in diverse fields.

    DOI: 10.1007/s40725-023-00203-3

    Scopus

  2. 近赤外ハイパースぺクトラル画像のディープラーニング認識

    検査技術26 巻 ( 6 ) 頁: 61 - 66   2020年4月

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    担当区分:筆頭著者, 責任著者  

  3. 近赤外分光イメージング法の農業・食品分野への応用

    土川覚, 稲垣哲也, 馬特  

    月刊画像ラボ   頁: 29 - 33   2020年4月

  4. 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

      71 巻 ( 3 ) 頁: 318 - 325   2017年

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講演・口頭発表等 39

  1. 機械学習によるスペクトルデータ解析 _Lambert Beer 則、ケモメトリクス、深 層学習

    稲垣哲也

    <高分子分析研究懇談会> 4 10 回 夏季 例会  2022年7月27日 

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    開催年月日: 2022年7月

  2. 多変量解析(ケモメトリックス)の理論と実践 招待有り

    稲垣哲也

    第47回近赤外講習会(中・上級コース)・第109回食品技術講習会 

     詳細を見る

    開催年月日: 2021年1月

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  3. -pythonを用いたケモメトリックスの実践- 招待有り

    稲垣哲也

    日本分光学会スペクトル解析部会 第1回講習会 

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    開催年月日: 2020年2月

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  4. 多変量解析(ケモメトリックス)の理論と実践

    稲垣哲也

    第43回近赤外講習会(中級・上級コース)・第105回食品技術講習会 

     詳細を見る

    開催年月日: 2019年1月

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  5. スペクトル定量分析の基礎 招待有り

    稲垣哲也

    ANS2016, the 5th Asian NIR symposium 

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    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  6. 「分光分析法による木材の材質評価 _ケモメトリクス・機械学習・深層学習」 招待有り

    稲垣哲也

    日本木材学会中国・四国支部第 33回研究発表会 公開シンポジウム  2022年9月9日 

     詳細を見る

    開催年月日: 2022年9月

  7. 多変量解析(ケモメトリックス)の理論と実践 招待有り

    稲垣哲也

    第45回近赤外講習会(中・上級コース)・第107回食品技術講習会 

     詳細を見る

    開催年月日: 2020年1月

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  8. PLSの基礎

    稲垣哲也

    日本分光学会 第54回夏期セミナー 

     詳細を見る

    開催年月日: 2018年9月

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

  9. NIR Spectral-kinetic analysis for thermally degraded wood 国際会議

    T. Inagaki and S. Tsuchikawa

     詳細を見る

    開催年月日: 2017年6月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:カナダ  

  10. Estimation of Wood Properties by THz Time Domain Spectroscopy, EMN meeting on THz, 招待有り 国際会議

    Tetsuya inagaki, Ian Hartley, Satoru Tsuchikawa and Matthew Reid

     詳細を見る

    開催年月日: 2016年5月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:スペイン  

  11. Simultaneous prediction of density and moisture content of wood by terahertz time domain spectroscopy 国際会議

    Tetsuya Inagaki, Belal Ahmed, Ian Hartley, Satoru Tsuchikawa and Matthew Reid

    Tetsuya Inagaki, Belal Ahmed, Ian Hartley, Satoru Tsuchikawa and Matthew Reid , 

     詳細を見る

    開催年月日: 2015年3月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  12. Possibility of Time-of-Flight NIR spectroscopy for the prediction of moisture content of wood 国際会議

    Tetsuya Inagaki, Satoru Tsuchikawa

    The 4th Asian NIR symposium 

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    開催年月日: 2014年6月

    記述言語:英語   会議種別:ポスター発表  

    国名:大韓民国  

  13. テラヘルツ時間領域分光法による木質素材の物性評価 招待有り

    稲垣哲也

    日本分光学会中部支部講演会~テラヘルツ分光の現状と将来展望~ 

     詳細を見る

    開催年月日: 2014年2月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

  14. THz time domain spectroscopy for density prediction of oven dried wood 国際会議

    Tetsuya Inagaki, Satoru Tsuchikawa Ian D. Hartley and Matthew Reid

    seventh international conference on advanced vibrational spectroscopy 

     詳細を見る

    開催年月日: 2013年8月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  15. NIR spectroscopic archaeology for buried wood 国際会議

    etsuya Inagaki, Naoya Okumura, Hitoshi Yonenobu and Satoru Tsuchikawa

    16th International Conference on Near Infrared Spectroscopy 

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    開催年月日: 2013年6月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:フランス共和国  

  16. 近赤外分光法による木質系文化財・考古資料材質推定技術の確立 招待有り

    稲垣哲也

    第28回近赤外フォーラム 

     詳細を見る

    開催年月日: 2013年3月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

  17. High accuracy rapid prediction and feasibility of on-site nondestructive estimation of Para rubber quality by spectroscopic methods 国際会議

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

     詳細を見る

    開催年月日: 2012年5月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:タイ王国  

  18. Difference of Cellulosic Crystalline Structure in Wood between Hydrothermal and Ageing Degradation Observed by NIR Spectroscopy and XRD 国際会議

     詳細を見る

    開催年月日: 2011年5月

    記述言語:英語   会議種別:ポスター発表  

    国名:日本国  

  19. Difference of cellulosic crystalline structure in wood between hydrothermal and ageing degradation observed by NIR spectroscopy and XRD 国際会議

    etsuya Inagaki, Heinz W. Siesler, Katsuya Mitsui, Satoru Tsuchikawa

     詳細を見る

    開催年月日: 2011年3月

    記述言語:英語   会議種別:ポスター発表  

    国名:日本国  

  20. Near-Infrared Spectroscopic Monitoring of the Diffusion Process of Deuterium-Labeled Molecules in Thermal Treated Wood 国際会議

    Tetsuya Inagaki, Katsuya Mitsui and Satoru Tsuchikawa

    Pittcon 2009 

     詳細を見る

    開催年月日: 2010年3月

    記述言語:英語   会議種別:ポスター発表  

  21. Eucalyptus camaldulensis density and fiber length estimated by near infrared spectroscopy 国際会議

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

    NIR Conference 2009 

     詳細を見る

    開催年月日: 2009年11月

    記述言語:英語   会議種別:ポスター発表  

  22. 近赤外分光法による木材の非破壊評価に関する研究 招待有り

    稲垣哲也

    日本木材学会レオロジー研究会 2009 年度講演会 

     詳細を見る

    開催年月日: 2009年8月

    記述言語:日本語   会議種別:口頭発表(招待・特別)  

  23. 近赤外分光法による生活排水モニタリングシステムの開発

    稲垣哲也、篠田友佳梨、宮澤光博、高村仁知、土川覚

    第25回近赤外フォーラム 

     詳細を見る

    開催年月日: 2009年5月

    記述言語:日本語   会議種別:ポスター発表  

  24. 近赤外分光法によるプランテーションユーカリ材の非破壊材質評価(I)-基礎的検討-

    稲垣哲也、加藤玲奈、倉田洋平、松下泰幸、佐々木康寿、山本浩之、Pratuang Puthson、Warunee Thanapasse、土川覚

    第59回日本木材学会大会 

     詳細を見る

    開催年月日: 2009年3月

    記述言語:日本語   会議種別:ポスター発表  

  25. NIR archaeometry as a powerful tool for investigating the archaeological wood-Investigation of thermal degradation mechanism of softwood and hardwood 国際会議

    Tetsuya Inagaki, Katsuya Mitsui, Satoru Tsuchikawa

    International Conference on Wood Science for Preservation of Cultural Heritage: Mechanical and Biological Factors 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:英語   会議種別:口頭発表(一般)  

  26. 重水素置換法による熱処理木材の劣化メカニズムの解明

    稲垣哲也、三井勝也、土川覚

    2008年度日本木材学会中部支部大会 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:日本語   会議種別:口頭発表(一般)  

  27. Near Infrared Spectroscopic Assessment of Contamination Level of Sewage 国際会議

    Tetsuya Inagaki, Yukari Shinoda, M Miyazawa, H Takamura and Satoru Tsuchikawa

    The 1st Aian NIR Symposium and the 24th Japanese NIR Forum 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:英語   会議種別:ポスター発表  

  28. NIR spectroscopic monitoring of water adsorption/desorption process in modern and archaeological wood 国際会議

    Tetsuya Inagaki, Katsuya Mitsui, Satoru Tsuchikawa

    International Conference on Wood Science for Preservation of Cultural Heritage: Mechanical and Biological Factors 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:英語   会議種別:ポスター発表  

  29. NIR archaeometry as a powerful tool for investigating the archaeological wood - Spectroscopic observation of the degradation process in thermal treated wood using a deuterium exchange method 国際会議

    Tetsuya Inagaki, Satoru Tsuchikawa

    International Conference on Wood Science for Preservation of Cultural Heritage: Mechanical and Biological Factors 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:英語   会議種別:ポスター発表  

  30. Near Infrared Spectroscopic Monitoring of the Diffusion Process of Deuterium-Labeled Molecules in Thermal Treated Wood 国際会議

    Tetsuya Inagaki, Satoru Tsuchikawa

    The 1st Asian NIR Symposium and the 24th Japanese NIR Forum 

     詳細を見る

    開催年月日: 2008年11月

    記述言語:英語   会議種別:口頭発表(一般)  

  31. 分光分析法による新しい考古計測学の確立―ケモメトリクス的アプローチによる木材の熱劣化機構の解明―

    稲垣哲也、三井勝也、土川覚

    第58回日本木材学会 

     詳細を見る

    開催年月日: 2008年3月

    記述言語:日本語   会議種別:口頭発表(一般)  

  32. 近赤外分光法による広葉樹熱劣化機構の解明

    稲垣哲也、三井勝也、土川覚

    第23回近赤外フォーラム 

     詳細を見る

    開催年月日: 2007年11月

    記述言語:日本語   会議種別:ポスター発表  

  33. 分光分析法による新しい考古計測学の確立―近赤外分光法による針葉樹熱劣化機構の解明―

    稲垣哲也、三井勝也、土川覚

    第57回日本木材学会 

     詳細を見る

    開催年月日: 2007年8月

    記述言語:日本語   会議種別:口頭発表(一般)  

  34. Investigation of Thermal Degradation Mechanism of Soft Wood by NIR Spectroscopy 国際会議

    Tetsuya Inagaki, Katsuya Mitsui, Satoru Tsuchikawa

    NIR Conference 2007 

     詳細を見る

    開催年月日: 2007年6月

    記述言語:英語   会議種別:口頭発表(一般)  

  35. Application of Near-infrared Archaeometry to Wood -Variation of Water Adsorption Condition to Wood with Ageing Degradation- 国際会議

    Tetsuya Inagaki, Hitoshi Yonenobu, Satoru Tsuchikawa

    NIR Conference 2007 

     詳細を見る

    開催年月日: 2007年6月

    記述言語:英語   会議種別:ポスター発表  

  36. 分光分析法による新しい考古計測学の確立-各種物性の変化-

    稲垣哲也、三井勝也、土川覚

    第22回近赤外フォーラム 

     詳細を見る

    開催年月日: 2006年11月

    記述言語:日本語   会議種別:ポスター発表  

  37. Application of NIR Archaeometry to Wood - Variation of Water Adsorption Condition to Wood with Ageing Degradation- 国際会議

    Tetsuya Inagaki, Hitoshi Yonenobu, Satoru Tsuchikawa

    Japan-Korea Joint Symposium on NIRS 

     詳細を見る

    開催年月日: 2006年6月

    記述言語:英語   会議種別:ポスター発表  

  38. 分光分析法による新しい考古計測学の確立―木材の経年変化による水分吸放湿機構の変化―

    稲垣哲也、米延仁志、土川覚

    2005年度日本木材学会中部支部大会 

     詳細を見る

    開催年月日: 2005年10月

    記述言語:日本語   会議種別:口頭発表(一般)  

  39. スペクトル定量分析の基礎

    稲垣哲也

    第34回近赤外フォーラム ショートコース  2018年11月20日 

     詳細を見る

    記述言語:日本語   会議種別:公開講演,セミナー,チュートリアル,講習,講義等  

▼全件表示

共同研究・競争的資金等の研究課題 7

  1. 革新的で安価な木材等級非破壊高速測定装置の開発

    A-STEP トライアウト 

      詳細を見る

    資金種別:競争的資金

  2. 近赤外分光分析法を活用した天然ゴムオンサイト品質評価手法 の開発

    研究課題番号:28-013019  2014年4月 - 2015年3月

    第25回研究助成 一般研究助成 

      詳細を見る

    資金種別:競争的資金

  3. 木質材料に関する可視・近赤外考古計 測学の確立

    研究課題番号:28-G-G2501 

    平成24年度海外研究者招へい事業助成 

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    担当区分:研究代表者 

  4. 近赤外ハイパースペクトラルイメージングのディープラーニング認識

    令和元年度コニカミノルタ画像科学奨励賞 

      詳細を見る

    担当区分:研究代表者 

  5. 日中で築く最先端木質科学研究の架け橋

    研究課題番号:S2019F0529279 

    さくらサイエンスプラン(A.科学技術体験コース) 

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    担当区分:研究代表者 

  6. 日中で築く農林最先端技術の架け橋

    研究課題番号:S2018F0831576 

    さくらサイエンスプラン(A.科学技術体験コース) 

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    担当区分:研究代表者 

  7. 日中共同で取り組む未開拓農業工学研究

    研究課題番号:S2017F0731452 

    さくらサイエンスプラン(B.共同研究活動コース) 

      詳細を見る

    担当区分:研究代表者 

▼全件表示

科研費 13

  1. THz cellulose crystallographyの展開

    研究課題/研究課題番号:21H02255  2021年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    稲垣 哲也, 土川 覚

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    担当区分:研究代表者 

    配分額:12350000円 ( 直接経費:9500000円 、 間接経費:2850000円 )

    本研究では、「木材中のセルロース結晶領域をTHz時間領域分光法(THz-TDs)によって評価する新たな学問領域『THz cellulose crystallography』、すなわち木材のTHz透過スペクトルから結晶量・結晶構造・ミクロフィブリル傾角(MFA)を高精度計測するアルゴリズムを確立」することを目標としている。
    2021年度には結晶量・結晶構造・ミクロフィブリル傾角(MFA)を高精度推定するために、さまざまな試料(木材、セルロース試料、疑似木材)についてTHzスペクトルおよびX線回折チャートを測定し、それぞれの性質について評価した。これによりTHz分光法を用いることで、結晶量と結晶構造についてはX線回折法よりも高精度に推定できることを示した。またMFAについては、(木材のラディアルストリップのMFAの連続測定が可能な)Silviscan測定を行っているところである。Silviscan測定完了後には、試料から板目面を切り出しTHz測定することで、THzスペクトルからのMFA推定を可能とする。また2次元ステッピングモーターを用意し、試料を走査させながらTHzスペクトルを測定する機構を構築した。これらが非常に円滑に進捗しているため、次年度からは様々な含水率状態にある木材の結晶性評価、熱処理による木材の結晶性変化の追跡およびイメージング測定による結晶の空間的分布の変化を把握することに挑戦する。

  2. 超広帯域マルチ分光計測による古材の表層・内部材質評価手法の確立

    2014年4月 - 2016年3月

    科学研究費補助金  若手研究(B)

      詳細を見る

    担当区分:研究代表者 

  3. ユニークな分光法のカップリングによる脱ケモメトリクス果実評価手法の構築

    2015年4月 - 2017年3月

    科学研究費補助金 

      詳細を見る

    担当区分:研究分担者 

  4. NIR-HSI法を活用した木材のハイスループット型材質分析手法の確立

    2013年4月 - 2016年3月

    科学研究費補助金  基盤研究(B)

      詳細を見る

    担当区分:研究分担者 

  5. 広帯域マルチ分光計測による木材乾燥現象の微視的~巨視的レベルでの把握

    2013年4月 - 2015年3月

    科学研究費補助金 

      詳細を見る

    担当区分:研究分担者 

  6. テラヘルツ時間領域分光法によるエンジニアリングウッドの非破壊総合材質診断

    2016年4月 - 2019年3月

    科学研究費補助金  基盤研究(A)

      詳細を見る

    担当区分:研究分担者 

  7. 革新的で安価な木材等級非破壊高速測定装置の開発

    2022年9月 - 2024年3月

    JST  A-STEPトライアウト 

      詳細を見る

    担当区分:研究代表者 

  8. スナップショット型近赤外ハイパースペクトラル画像による木材内水分動態モニタリング

    研究課題/研究課題番号:22H02405  2022年4月 - 2025年3月

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    土川 覚, 稲垣 哲也, 馬 特

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    担当区分:研究分担者 

    スナップショット型近赤外ハイパースペクトラルイメージング(NIR-ssHSI)法によって、木材の乾燥過程を詳細に追跡することにより、生材状態から全乾状態まで多岐にわたる木材の水分動態を振動分光学的に明らかにする。様々な条件下で柱材試片を乾燥させ、逐次これを鋸断して内部断面をNIR-ssHSIカメラで撮影し、得られた一連のハイパースペクトラルデータをケモメトリクス的に解析することにより、木材内部の水分体積流と拡散現象を3Dモニタリングする。

  9. 樹木根の分解と炭素貯留機能の持続性-土壌深度の影響解明と広域評価-

    研究課題/研究課題番号:19H03012  2019年4月 - 2024年3月

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    酒井 佳美, 堀澤 栄, 鵜川 信, 徳地 直子, 上村 真由子, 稲垣 哲也

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    担当区分:研究分担者 

    土壌の深さ別の分解能力推定手法開発のための予備試験を継続した。約1年間分解させた木杭を回収し、本木杭を模擬根と仮定して分解による材密度変化の可視化のための近赤外光によるハイパースペクトラルイメージングデータを取得した。
    広域での樹木根分解過程の影響要因解明のため分解試験をおこない分解期間2年の分解速度を推定し、樹木根分解試料の微生物群集を明らかにした。全国7試験地のリターバック法による分解試験の2年間の重量減少率を用いて推定した分解定数を比較し初期分解への影響要因を検討した。各試験地の重量減少率に一次指数関数を用いて近似計算した分解定数は市販の丸太材の四割材で0.02~0.51、疑似材は0.09~0.97、枝と根では0.15~0.57の範囲であった。四割材と枝と根は気温と正の相関がある一方、疑似材は気温以外の要因の存在が推察された。固形の木材と、疑似材のように細片化した木片では分解への主たる影響要因が変化すると考えられた。土壌深さ別に比較すると、分解が最も早い深さは5-10cm(群馬水上、筑波山、熊本)あるいは20-30cm(標茶、羊ヶ丘)となり、試験地間で傾向が異なることが明らかとなった。微生物群集の判定を四割材の分解試料を用いて進めた。北海道(標茶、羊ヶ丘)を除く5か所の試験地間で比較すると、群馬水上の微生物相が他の4か所とは有意に異なっていた。群馬水上では落葉広葉樹林、他の4か所はスギ人工林に設置しており植生の影響が予想され、さらに検討を進める予定である。また、試験地全体の傾向として、バクテリアと真菌類の多様度に相関が認められた。
    広域の環境変化をより詳細に解析するため新たに2か所の試験地を設置した。

  10. コグニティブスペクトロスコピーによる自動樹種判別システムの構築

    研究課題/研究課題番号:19H03015  2019年4月 - 2022年3月

    日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

    土川 覚, 稲垣 哲也

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    担当区分:研究分担者 

    本研究では、「多層構造のニューラルネットワークを用いた機械学習であるディープラーニングを木材の可視・近赤外シームレスハイパースペクトラルデータに適用して、木材の樹種判別を自動で行えるプロトコルを構築し、コグニティブスペクトロスコピーともいうべき新たな認識科学分析手法を確立すること」を目標とした。
    広葉樹38樹種の可視画像および近赤外ハイパースペクトラル画像をもとに、CNNを用いて樹種判別を行ったところ、近赤外画像を用いた場合の正答率は90.5%に達した。これにより「試料表面の分子振動情報とその空間分布をCNNによって分析する」という新たな認識化学分析手法の可能性を示すことができた。

  11. テラヘルツ時間領域分光法によるエンジニアリングウッドの非破壊総合材質診断

    研究課題/研究課題番号:16H02559  2016年4月 - 2019年3月

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    土川 覚, 稲垣 哲也, 小堀 光, 鈴木 滋彦, リード マシュー

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    担当区分:研究分担者  資金種別:競争的資金

    木材への透過性に優れ、安全性の高いTHz領域電磁波によるエンジニアリングウッド非破壊評価手法の開発を行った。一連の研究によって、THz時間領域分光法によって合板の密度・含水率・繊維走向を高精度・非破壊で推定できることが示された。また合板に用いられている接着剤の定性も可能であった。さらに、上記性質の画像化および合板の各層の診断可能性も示唆された

  12. 時間・空間分解分光法による吸収・散乱・蛍光特性の把握と木材評価への応用

    研究課題/研究課題番号:16K07805  2016年4月 - 2019年3月

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    稲垣 哲也, 土川 覚

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    担当区分:研究代表者 

    配分額:4940000円 ( 直接経費:3800000円 、 間接経費:1140000円 )

    近赤外光による木材の品質評価手法に関する研究を行った。これまで木材中での光の散乱については不明な点が多かったが、時間分解分光法・空間分解分光法やシミュレーションを用いることで、木材内部(細胞壁レベル)での光の散乱特性を把握した。また密度や含水率が光の散乱に及ぼす影響を詳細に調べた。これらの情報をもとに、安価・小型な密度計測装置を試作し、十分な精度で密度予測が可能であることを示した。

  13. ユニークな分光法のカップリングによる脱ケモメトリクス果実評価手法の構築

    研究課題/研究課題番号:15K14833  2015年4月 - 2017年3月

    日本学術振興会  科学研究費助成事業  萌芽研究

    土川 覚, 稲垣 哲也

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    資金種別:競争的資金

    本研究では、ピコ秒オーダの極短時間パルス近赤外光の物質内部での時間変化を解析
    することにより、果実の吸収係数および等価散乱係数を厳密に求め(TOF-NIRS)、さ
    らに果実に照射されたハロゲン光の拡散反射光強度を2本のファイバで検出し(TFDRS)、両者のパラメータから物質内部での光吸収量(化学成分値)を統計解析に頼らずに求めることに成功した。さらに計測した光学定数からモンテカルロシミュレーションを用いて、りんご内部での光挙動のシミュレーションを行った。これにより①蜜部位の面積比率と透過光強度に相関があること、②りんごの散乱係数が大きいことから、透過画像から蜜部位の特定が難しいことが判明した。

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担当経験のある科目 (本学) 8

  1. 理系基礎科目 物理学実験

    2020

  2. 農学部特別講義・農業情報工学

    2020

  3. 生物材料解析学

    2020

  4. 応用分光分析法

    2020

  5. 生物材料プロセス工学

    2020

  6. 生命系物理工学

    2020

  7. データサイエンス特別講義3

    2020

  8. 生物環境科学実験実習

    2020

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担当経験のある科目 (本学以外) 11

  1. Pythonを用いたスペクトルデータのケモメトリクス(機械学習)解析

    2022年 - 現在 https://www.udemy.com/course/spectra_chemo_python/?referralCode=D7C73F7FBC6B6A4B8DAB)

  2. データサイエンス3

    2019年 - 現在 名古屋大学)

  3. 応用分光分析法

    2018年 - 現在 名古屋大学)

  4. 物理学基礎I

    2023年 - 現在 名古屋大学)

  5. 生命系物理工学

    2018年 - 現在 名古屋大学)

  6. 生物材料解析学

    2018年 - 現在 名古屋大学)

  7. 生物材料プロセス工学

    2018年 - 現在 名古屋大学)

  8. 物理学実験

    2018年 - 2022年 名古屋大学)

  9. 生物情報計測学

    2013年 - 2017年 名古屋大学)

  10. 生物材料機能学

    2011年4月 - 現在 名古屋大学)

  11. 生物環境科学実験実習

    2011年4月 - 現在 名古屋大学)

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