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External defects and severity level evaluation of potato using single and multispectral imaging in near infrared region Author links open overlay panel

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Information Processing in Agriculture 2024年第1期11卷 80-90页

作者： Dimas Firmanda Al Riza Slamet Widodo Kazuya Yamamoto Kazunori Ninomiya Tetsuhito Suzuki Yuichi ogawa Naoshi Kondo Laboratory of Biosensing Engineering Graduate School of AgricultureKyoto UniversityKitashirakawaKyoto 6068267Japan Department of Biosystems Engineering Faculty of Agricultural TechnologyUniversitas BrawijayaJl.VeteranMalang 65145Indonesia Department of Mechanical and Biosystem Engineering Bogor Agricultural UniversityJl.Raya Darmaga Kampus IPB DarmagaBogor 16680Indonesia Technology Development Department Shibuya Seiki Co.Ltd.66Takaoka-choMatsuyamaEhime 7918036Japan

Non-invasive potato defects detection has been demanded for sorting and grading *** on the classification of the defects has been available,however,investigation on the severity level calculation is *** the detection of the common scab,it has been found that imaging in the infrared region provide an interesting characteristic that could distinguish defected area to normal ***,investigations on this wavelength range is interesting to add more knowledge and for *** this research,the multispectral image has been obtained and investigated especially at three wavelengths(950,1150,1600 nm).Image pre-processing and pseudo-color conversion techniques were explored to enhance the contrast between defects,normal background skin area and soil *** show that external defects,such as common scab and some mechanical damage types,appear brighter in the near infrared region,especially at 1600 nm against the normal skin *** has been found that pseudo-color images conversion provides more information regarding type if surface characteristics compared to grayscale single *** segmentation using pseudo-color images after multiplication operation pre-processing could be used for common scab and mechanical damage detection excluding soil deposits with a Dice Sorensen coefficient of *** addition,image segmentation using single image at 1600 nm shown relatively better results with Dice Sorensen coefficient of 0.72 with note that thick soil deposits will also be *** severity level evaluation had an R2 correlation of 0.84 against standard measurements of severity.

关键词： Multispectral imaging Pseudo-color Common scab External defects Near infrared

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Radiologic-pathologic correlation of three-dimensional shear-wave elastographic findings in assessing the liver ablation volume after radiofrequency ablation

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World Journal of Gastroenterology 2014年第33期20卷 11850-11855页

作者： Katsutoshi Sugimoto Hisashi Oshiro Saori ogawa Mitsuyoshi Honjo Takeshi Hara Fuminori Moriyasu Department of Gastroenterology and Hepatology Tokyo Medical University Tokyo 160-0023 Japan Department of Pathology Tokyo Medical University Tokyo 160-0023 Japan Department of Intelligent Image Information Gifu University Graduate School of Medicine Gifu 501-1193 Japan

AIM: To evaluate the usefulness of three-dimensional (3D) shear-wave elastography (SWE) in assessing the liver ablation volume after radiofrequency (RF) ablation.

关键词： Radiofrequency ablation Liver Ultrasound Shear-wave elastography Three-dimensional

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Effect of heat-moisture treatment to raw paddy rice(Oryza sativa L.)On cooked rice properties

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Journal of Future Foods 2021年第2期1卷 179-186页

作者： Sukanya Thuengtung Sunantha Ketnawa Yichen Ding Yukiharu ogawa Gratuate School of Horticulture Chiba UniversityMatsudo 271-8501Japan Faculty of Medicine Chiang Mai UniversityChiang Mai 50200Thailand

Heat moisture treatment is safe and non-chemical use method for modifying physicochemical properties and digestibility of *** starch digestion in rice product would provide numerous health benefi ts for the *** study investigated the heat-moisture treatment to the raw paddy rice at 60 and 80ºC for 4 and 24 h,and their effects on the attributes of cooked *** fi rmness,adhesiveness,starch hydrolysis and morphological changes during in vitro digestion were *** showed that heat-moisture treatment to raw paddy rice for 24 h signifi cantly reduced the moisture content and could increase the total starch content of the rice *** apparent amylose content ranged from 23.83%to 25.65%at the variation in the values between treated and untreated *** in the firmness and reduction in the starch hydrolysis was found in rice treated by longer heating time of 24 ***,the adhesiveness of cooked rice was decreased when increasing the heating *** morphological observation showed that the treated rice exhibited a honey-comb-like structure during simulated gastric digestion,while the untreated rice displayed a non-uniform ***,the porous structure observed in all digested rice grains during simulated small intestinal digestion could favor the starch *** study showed that the heat-moisture treatment to the raw paddy rice at certain conditions obviously influenced the attributes of cooked rice,especially on the starch hydrolysis,which would provide a fundamental knowledge to enable development and improvement of slow digestion rice products.

关键词： Heat-moisture treatment Paddy rice Simulated in vitro digestion Physicochemical property Starch hydrolysis

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Efficacy of Japanese traditional(Kampo) medicine for treating chemotherapy-induced peripheral neuropathy: A retrospective case series study

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World Journal of Clinical Cases 2016年第10期4卷 310-317页

作者： Yumiko Kimata Keiko ogawa Hideki Okamoto Atsushi Chino Takao Namiki Department of Japanese-Oriental(Kampo)Medicine Chiba University School of Medicine Department of Japanese-Traditional(Kampo)Medicine Kanazawa University Hospital Department of Japanese-Oriental(Kampo)Medicine Chiba Central Medical Center

AIM To investigate Japanese traditional(Kampo) medicine's effectiveness on cancer chemotherapy-induced peripheral neuropathy(CIPN), we carried out this retrospective *** By searching our outpatient database of 3154 patients who consulted our outpatient clinic of Japanese-Oriental(Kampo) Medicine at Chiba University Hospital from November 2005 to December 2010, a total of 281 patients diagnosed with cancer were identified. Twentyfour patients out of the 281 patients identified met the following three conditions and were eligible for further investigation of the effectiveness of Kampo treatment: At least one course of cancer chemotherapy had been administered; numbness and pain appeared after the chemotherapy; and CIPN was diagnosed before they were given Kampo *** The 24 patients included 6 males and 18 females and ranged in age from 39 to 86(mean 61.2 ± 11.5) years old. Kampo formulas were individually chosen by Kampo expert doctors based on Kampo-specific diagnostics. Beneficial outcomes were obtained by Kampo treatment in 20 out of the 24 cases(83.3%). Nine out 20 cases had a major response(the numbness and pain showed improvement or reduction by 50% or more), with 7 of 9 cases showing a more than 70% symptom reduction. Eleven out of 20 cases showed a minor response(less than 50% symptom reduction), and 4 out of the 24 cases had no beneficial response. The most frequently used formula was goshajinkigan(GJG), followed by hachimijiogan(HJG) and keishibukuryogan. Thirteen of the 24 cases(54.2%) were prescribed aconite rootcontaining formulas including GJG and HJG. Aconite root has "warming" effects and ameliorates pain and numbness; 21 out of 24 cases(87.5%) in total used warming formulas such as aconite root-containing formulas to reduce *** Our current study suggested that Kampo formulas chosen based on Kampo-specific diagnostics could be for treating CIPN that is refractory to conventional medicine.

关键词： Asian medicine Traditional Chinese medicine Goshajinkigan Keishibukuryogan Hachimijiogan

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Pion Effect of Nuclear Matter in a Chiral Sigma Model

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原子核物理评论 2009年第S1期26卷 75-78页

作者： Y.ogawa H.Toki A.Hosaka Research Center for Nuclear Physics (RCNP) Osaka University

We develop a new framework for the study of the nuclear matter based on the linear sigma model. We introduce a completely new viewpoint on the treatment of the nuclear matter with the inclusion of the pion. We extend the relativistic chiral mean field model by using the similar method in the tensor optimized shell model. We also regulate the pion-nucleon interaction by considering the form-factor and short range repulsion effects. We obtain the equation of state of nuclear matter and study the importance of the pion effect.

关键词： extended relativistic mean field model chiral symmetry pion exchange

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Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural

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Biochar 2022年第1期4卷 490-502页

作者： Haixin Guo Sohei ogawa Yukiya Isoda Feng Shen Richard Lee Smith Jr Ministry of Agriculture and Rural Affairs Agro-Environmental Protection InstituteNo.31 Fukang RoadNankai DistrictTianjin 300191China Graduate School of Environmental Studies Tohoku UniversityAramaki Aza Aoba 6-6-11AobaSendai 980-8579Japan

Many types of sustainably-prepared functional biochar catalysts are needed to transform biomass substrates into platform *** this work,weak-acid biochar catalysts were prepared by mix ball-milled(10 min,isothermal,room temperature)cherry blossom tree leaf biomass(BM)with humic acid(H)prior to carbonization of samples for 1 h under nitrogen *** of the as-prepared materials(HBM-carbonization temperature in℃)showed that humic acid activated the biochars and increased their number of oxygen-containing functional(-COOH,OH)*** weak-acid biochars were applied as heterogeneous catalysts for dehydration of fructose to 5-hydroxymethylfurfural(5-HMF),where it was found that biochar catalyst,HBM-400,gave 100%fructose conversion and 77.5%5-HMF yields in an ionic liquid(1-butyl-3-methylimidazolium chloride)reaction system(140℃,60 min reaction time).As-prepared HBM-400 biochars exhibited constant catalytic activity for fructose dehydration with repeated use without any type of reactivation treatment and were stable for 5 *** acid is an effective additive for preparing weak-acid catalytic materials from waste biomass.

关键词： Humic acid Mixing ball milling Oxygen-containing functional group Weak-acid biochar

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Observation of MHD Instabilities Driven by Energetic Electrons in the Large Helical Device

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Plasma Science and Technology 2015年第4期17卷 276-279页

作者： Mitsutaka ISOBE Kunihiro ogawa Akihiro SHIMIZU Masaki OSAKABE Shin KUBO K.TOI the LHD Experiment Group National Institute for Fusion Science Toki 509-5292Japan Department of Fusion Science The Graduate University for Advanced Studies(SOKENDAI)Toki 509-5292Japan Department of Energy Engineering and Science Nagoya UniversityNagoya 464-8463Japan

Coherent magnetic fluctuations in an acoustic range of frequency have been regularly observed in low-density（n_e〈0.2×10^（19）m^（-3））plasmas with strong second harmonic electron cyclotron resonance heating（ECRH）on the Large Helical *** X-ray measurements indicated that energetic electrons are generated in these ECRH *** magnetic fluctuations are suppressed in higher density discharges where energetic electrons are not *** ECRH power modulation experiment indicated that the observed magnetohydrodynamic（MHD）mode has an acoustic nature rather than an Alfvenic nature.

关键词： LHD ECRH energetic electron MHD instability

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焊缝偏差RBF神经网络预测算法

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焊接学报 2012年第4期33卷 1-4,113页

作者：高向东莫玲游德勇 Katayama seiji 广东工业大学机电工程学院广州510006 大阪大学接合科学研究所

以10 kW大功率光纤激光焊接304奥氏体不锈钢板为试验对象,研究一种焊缝偏差预测算法.利用红外摄像机摄取焊接过程中的熔池红外图像,提取匙孔质心、匙孔形状参数和热堆积效应参数等反映激光束与焊缝位置偏差的特征量作为径向基函数RBF神... 详细信息

以10 kW大功率光纤激光焊接304奥氏体不锈钢板为试验对象,研究一种焊缝偏差预测算法.利用红外摄像机摄取焊接过程中的熔池红外图像,提取匙孔质心、匙孔形状参数和热堆积效应参数等反映激光束与焊缝位置偏差的特征量作为径向基函数RBF神经网络预测模型的输入量,建立焊缝偏差RBF神经网络预测模型.选择焊缝偏差特征量作为训练样本并对预测模型进行训练,建立焊缝偏差预测模型.结果表明,该模型能够对大功率光纤激光焊接过程中的激光束与焊缝位置之间的偏差进行有效预测.

关键词：大功率光纤激光焊 RBF神经网络焊缝偏差预测

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大功率光纤激光焊熔池形态及焊接稳定性分析

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焊接学报 2011年第9期32卷 13-16,113页

作者：高向东张勇游德勇 Katayama seiji 广东工业大学机电工程学院广州510006 日本大阪大学接合科学研究所

在大功率光纤激光焊接过程中,熔池热辐射含有丰富的焊接质量信息,熔池形态及其变化特征与焊接稳定性密切相关.研究一种基于红外热像的大功率光纤激光深熔焊熔池形态分析及焊缝质量稳定性评价的方法.以10 kW大功率光纤连续激光焊接304不... 详细信息

在大功率光纤激光焊接过程中,熔池热辐射含有丰富的焊接质量信息,熔池形态及其变化特征与焊接稳定性密切相关.研究一种基于红外热像的大功率光纤激光深熔焊熔池形态分析及焊缝质量稳定性评价的方法.以10 kW大功率光纤连续激光焊接304不锈钢为试验对象,应用近红外传感高速摄像机摄取熔池动态热像,通过动态自动阈值和数学形态学方法重点分析熔池和匙孔形态以及对应的焊缝宽度变化,以熔池宽度、匙孔面积和匙孔宽度作为熔池形态参数,焊缝宽度作为衡量焊接过程稳定性的参数,研究熔池形态参数与焊接稳定性的关联.结果表明,通过熔池形态参数能够较准确地反映大功率光纤激光焊接过程的稳定性.

关键词：大功率光纤激光焊红外热像熔池稳定性

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色噪声下卡尔曼滤波焊缝跟踪算法与试验研究

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控制理论与应用 2011年第7期28卷 931-935页

作者：高向东仲训杲游德勇 KATAYAMA seiji 广东工业大学机电工程学院广东广州510006 大阪大学接合科学研究所

精确控制激光束使其始终对中并跟踪焊缝是保证激光焊接质量的前提.以大功率光纤激光焊接Type304不锈钢为试验对象,研究一种有色噪声环境下应用卡尔曼滤波最优状态估计预测激光束与焊缝路径偏差的方法.使用高速红外视觉传感器摄取焊接区... 详细信息

精确控制激光束使其始终对中并跟踪焊缝是保证激光焊接质量的前提.以大功率光纤激光焊接Type304不锈钢为试验对象,研究一种有色噪声环境下应用卡尔曼滤波最优状态估计预测激光束与焊缝路径偏差的方法.使用高速红外视觉传感器摄取焊接区红外热像,提取焊缝位置参数并构成状态向量,建立基于焊缝位置参数的系统状态方程和焊缝位置测量方程.针对系统动态噪声为有色噪声,通过扩展状态变量的方法建立有色噪声环境下的卡尔曼滤波算法,对焊缝位置进行最优状态估计并得到最小均方差条件下的焊缝偏差最优预测值,消除系统噪声对焊缝偏差测量的影响.焊接试验结果表明新方法可有效抑制有色噪声干扰并提高焊缝跟踪精度.

关键词：焊缝跟踪色噪声卡尔曼滤波大功率光纤激光焊

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