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分析测试学报 2001年第Z1期20卷 59-60页

作者： tohru YAMAGAKI Department of Chemistry School of Science The University of Tokyo and CREST Japan Science and Technology Corporation (JST) Hongo Bunkyo- ku Tokyo 113-0033 Japan

N - Linked oligosaccharide were analyzed by using electrospray ionization (ESI) quadrupole time - of- fight mass spectrometry(Q - Tof MS).The isomers showed the same MS and collisioninduced desociation(CID) MS - MS spectra in the m/z values because the sequence of the sugar residues was the *** the relative ion abundance of the specific fragment ion was greatly different between the ***, the isomeric oligosacchariedes were distinguished by using the ion abundance in their CID -MS - MS *** the ion abundance in accurate level, quantitative analysis of the mixtures of isomers were also performed.……

关键词： flight Mass Spectrometry electrospray ionization MS spectra mass spectrometry sequence of

Degradation of Reactive Yellow 86 with photo-Fenton process driven by solar light

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Journal of Environmental Sciences 2010年第9期22卷 1455-1461页

作者： Hideyuki Katsumata Syunya Koike Satoshi Kaneco tohru Suzuki Kiyohisa Ohta Department of Chemistry for Materials Graduate School of EngineeringMie UniversityTsu Environmental Preservation Center Mie UniversityTsu

The decolorization of Reactive Yellow 86 （RY 86）, one of reactive azo dyes, was investigated in the presence of Fenton reagent under solar light irradiation. The decolorization rate was strongly influenced by pH, initial concentrations of H202 and Fe（II）, and so on. An initial concentration of 40 mg/L was decolored more than 90% after 20 min under optimum conditions. The activation energy of the solar photo-Fenton reaction was 1.50 kJ/mol for RY 86 in the temperature range of 10-60℃. In the kinetic study, the rate constant of RY 86 with OH- radicals could be estimated to be 1.7 × 10^10 L/（***）. The decolorization efficiency of RY 86 under solar light irradiation was comparable to the artificial light irradiation. The decrease of TOC as a result of mineralization of RY 86 was observed during photo-Fenton process. The rate of RY 86 mineralization was about 83% under UV irradiation after 24 hr. The formation of chloride, sulfate, nitrate and ammonium ions as end-products was observed during the photocatalytic process. The decomposition of RY 86 gave two kinds of intermediate products. The degradation mechanism of RY 86 was proposed on the base of the identified intermediates.

关键词： reactive azo dye photo-Fenton reaction solar light irradiation decolorization mineralization

Color Restoration Method Based on Spectral Information Using Normalized Cut

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International Journal of Automation and computing 2008年第3期5卷 226-233页

作者： Tetsuro morimoto tohru Mihashi Katsushi Ikeuchi Institute of Industrial Science University of TokyoKoganei Information Technology Research Laboratory Corporate R&D Division Toppan Printing Co.Ltd.

This paper proposes a novel method for color restoration that can effectively apply accurate color based on spectral information to a segmented image using the normalized cut technique. Using the proposed method, we can obtain a digital still camera image and spectral information in different environments. Also, it is not necessary to estimate reflectance spectra using a spectral database such as other methods. The synthesized images are accurate and high resolution. The proposed method effectively works in making digital archive contents. Some experimental results are demonstrated in this paper.

关键词： Spectral information normalized cut digital archive contents digital still camera (DSC) spectrometer.

An analysis of 15 years of trends in children’s connection with nature and its relationship with residential environment

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Ecosystem Health and Sustainability 2018年第8期4卷 2-12页

作者： Haruka Imai tohru Nakashizuka Ryo Kohsaka Graduate School of Environmental Studies Tohoku UniversitySendaiJapan Research Institutefor Humanity and Nature KyotoJapan

Intruduction:We assessed recent trends in children's connection with nature over the period of 2000-2015,using indices of wildlife awareness that focus on changes in wildlife abundance and the level of apathy among *** used data from a survey conducted in 63 junior high school districts in the city of Sendai in *** these surveys,children were asked whether they had seen 12 species groups within the past *** examine changes in children's connection with nature,we used observed frequencies as an indicator of both the abundance of the species and children's apathy toward *** and Discussions:Results indicated an increase in children's apathy toward species that had low popularity regardless of residential *** results suggest that regular exposure to wildlife would be effective in preventing the loss of children's connection with nature,particularly by reducing children's apathy toward less-popular species.

关键词： Connection with nature apathy toward nature abundance of species long-term change questionnairesurvey to citizens residential environment

Surface-mounted bender elements for measuring horizontal shear wave velocity of soils

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第11期9卷 1490-1496页

作者： Yan-guo ZHOU Yun-min CHEN Yoshiharu ASAKA tohru ABE MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering Zhejiang University Hangzhou 310027 China Institute of Geotechnical Engineering Zhejiang University Hangzhou 310027 China Institute of Technology Shimizu Corporation Tokyo 135-8530 Japan

The bender element testing features its in-plane directivity, which allows using bender elements to measure the shear wave velocities in a wider range of in-plane configurations besides the standard tip-to-tip alignment. This paper proposed a novel bender element testing technique for measuring the horizontal shear wave velocity of soils, where the bender elements are surface- mounted and the axes of the source and receiver elements are parallel to each other. The preliminary tests performed on model ground of silica sand showed that, by properly determining the travel distance and time of the shear waves, the surface-mounted bender elements can perform as accurately as the conventional "tip-to-tip" configuration. Potentially, the present system provides a promising nondestructive tool for characterizing geomaterials and site conditions both in laboratory and in the fields.

关键词：弯曲度剪切波速度非破坏性评估沙地

Improvement of solidification model and analysis of 3D channel blockage with MPS method

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Frontiers in Energy 2021年第4期15卷 946-958页

作者： Reo KAWAKAMI Xin LI Guangtao DUAN Akifumi YAMAJI Isamu SATO tohru SUZUKI Cooperative Major in Nuclear Energy Graduate School and Advanced Science and EngineeringFaculty of Science and EngineeringWaseda University3-4-1 OkuboShinjuku-kuTokyo169-8555Japan Department of Nuclear Engineering and Management The University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656Japan Department of Nuclear Safety Engineering Faculty of EngineeringTokyo City University1-28-1 TamazutsumiSetagaya-kuTokyo158-0087Japan

In a severe accident of a nuclear power reactor,coolant channel blockage by solidified molten core debris may significantly influence the core degradations that *** moving particle semi-implicit(MPS)method is one of the Lagrangian-based particle methods for analyzing incompressible *** the study described in this paper,a novel solidification model for analyzing melt flowing channel blockage with the MPS method has been developed,which is suitable to attain a sufficient numerical accuracy with a reasonable calculation *** prompt velocity diffusion by viscosity is prioritized over the prompt velocity correction by the pressure term(for assuring incompressibility)within each time step over the“mushy zone”(between the solidus and liquidus temperature)for accurate modeling of solidification before fixing the coordinates of the completely solidified *** sustain the numerical accuracy and stability,the corrective matrix and particle shifting techniques have been applied to correct the discretization errors from irregular particle arrangements and to recover the regular particle arrangements,*** validate the newly developed algorithm,2-D benchmark analyses are conducted for steady-state freezing of the water in a laminar flow between two parallel ***,3-D channel blockage analyses of a boiling water reactor(BWR)fuel support piece have been *** results show that a partial channel blockage develops from the vicinity of the speed limiter,which does not fully develop into a complete channel blockage,but still diverts the incoming melt flow that follows to the orifice region.

关键词： boiling water reactor(BWR) severe accident channel blockage moving particle semi-implicit(MPS)method solidification*

Perinatal veterinary medicine‐related evaluation in hematological and serum biochemical profiles of experimental beagles throughout pregnancy and parturition

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Animal Models and Experimental Medicine 2018年第4期1卷 282-294页

作者： tohru Kimura Kazuhiko Kotani Laboratory Animal Science Joint Faculty of Veterinary Medicine Yamaguchi University Division of Community and Family Medicine Center for Community MedicineJichi Medical University

Background: The aims of this study were(a) to ascertain age-related changes in the reference values in hematological and serum biochemical examinations of beagles,and(b) to clarify the changes in these findings, including acute phase proteins and oxidative stress, throughout pregnancy and after ***: Clinicopathological parameters were measured in young beagles at 6, 9 and 12 months and in adult beagles aged from 24 to 60 months. Likewise, pregnant beagles were investigated throughout the pregnancy and after ***: Apparent age-related changes were found in erythrocytic parameters during the growth and development of beagles. Most of the parameters(total protein,albumin, blood urea nitrogen, creatinine, urate, alkaline phosphatase(ALP) and creatine kinase(CK) exhibited age-dependent transitions. White cell count significantly increased after 30 days of pregnancy. The values of erythrocytic parameters moderately decreased during the second half of the pregnancy. Triglycerides, total cholesterol, free cholesterol and phospholipid concentrations increased in the mid- and late stages of pregnancy. ALP, lactate dehydrogenase, CK and cholinesterase activities markedly increased during pregnancy and/or after parturition. C-reactive protein(CRP) concentrations gradually increased and reached a maximum after 30-40 days of pregnancy. Serum amyloid A(SAA) levels markedly increased at 30 days of pregnancy before subsiding, and then increased again 3 days after parturition. Reactive oxygen metabolites(d-ROMs) showed significant increases after 30 and 40 days of ***: Reference values for hematological and serum biochemical examinations should be used for health evaluation of dogs, taking sex, age and the stage of pregnancy into consideration. Measurements of CRP, SAA and d-ROM levels are also useful for assessing maternal conditions in mid-pregnancy.

关键词： beagles hematology parturition pregnancy reactive oxygen metabolites serum biochemistry

Estimating freight production/attraction using nighttime satellite imagery

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Communications in Transportation Research 2022年第1期2卷 167-180页

作者： Tomoya Kawasaki Wataru Nakanishi Satoshi Hyodo Yusaku Namba Hirokazu mori Hirotoshi Kishi Department of Systems Innovation The University of TokyoTokyo113-8656Japan Institute of Science and Engineering Kanazawa UniversityIshikawa920-1192Japan Department of Transportation Systems Engineering Nihon UniversityChiba274-8501Japan Nomura Research Institute Tokyo100-0004Japan

An appropriate understanding and accurate estimation of zonal freight production(FP)and attraction(FA)volume is one of the most important topics and the initial step in developing the origin and destination(OD)*** general,zonal FP and FA are difficult to be obtained as observed data,particularly in developing countries,owing to the lack of large-scale freight ***,several proxy indicators are often used for estimating FP and FA,such as the gross regional product(GRP),population,and the number of ***,these indicators do not often estimate the zonal FP and FA accurately and are even not available *** nighttime light intensity(NLI)data that is human-induced light emission data and one of the open alternative data,possibly improves the accuracy of FP and FA ***,few studies have examined the relationship between NLI and FP/***,the objectives of this study are to examine whether NLI can be a significant indicator for estimating zonal FP and FA relative to other socio-economic indicators and to examine the types of NLIs that can accurately estimate the FP and FA through a case study in *** a result of the analysis,NLI data are identified as a significant variable for the estimation of FP and FA among various socio-economic *** some of the indicators related to secondary industries provide higher accuracy,NLI exhibits better estimates than the popular indicators such as GRP and *** addition,we propose three types of total NLI that multiply the unit NLI by the zonal area and this generates higher accuracy of unit NLI,the average light intensity of all pixels in a *** have also found that the use of habitable area for the estimation of total NLI provides the highest accuracy among the four types of NLIs including unit *** the analysis,NLI data is sufficiently applicable for estimating zonal FP and FA,relative to other important socio-economic indicators,although space tr

关键词： Nighttime light intensity Freight production and attraction Land cover data Elastic net Regression analysis

Enhanced hydrogen production from aqueous methanol solution using TiO2/Cu as photocatalysts

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Frontiers of Chemical Science and Engineering 2014年第2期8卷 197-202页

作者： Paramasivan GOMATHISANKAR Tomoko NODA Hideyuki KATSUMATA tohru SUZUKI Satoshi KANECO Department of Chemistry for Materials Graduate School of Engineering Mie University Mie 514-8507 Japan Environmental Preservation Center Mie University Mie 514-8507 Japan

The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide （TiO2） was investigated in the addition of metal particles including copper, lead, tin, and zinc. The results show that only the addition of copper particles enhances the hydrogen production. The copper usage and reaction temperature were further optimized for TiO2/Cu photocatalyts. Under the optimal conditions, the hydrogen production using TiO2/Cu as photocatalysts is approxi- mately 68 times higher than that obtained with only TiO2.

关键词： photocatalytic hydrogen generation metha-nol copper particles TiO2 metal-semiconductor interface

Removing fences from sweep motion videos using global 3D reconstruction and fence-aware light field rendering

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Computational Visual Media 2019年第1期5卷 21-32页

作者： Chanya Lueangwattana Shohei mori Hideo Saito Department of Science and Technology Keio University Institute of Computer Graphics and Vision Graz University of Technology

Diminishing the appearance of a fence in an image is a challenging research area due to the characteristics of fences(thinness, lack of texture, etc.) and the need for occluded background restoration. In this paper, we describe a fence removal method for an image sequence captured by a user making a sweep motion, in which occluded background is potentially observed. To make use of geometric and appearance information such as consecutive images, we use two well-known approaches: structure from motion and light field rendering. Results using real image sequences show that our method can stably segment fences and preserve background details for various fence and background combinations. A new video without the fence, with frame coherence, can be successfully provided.

关键词： video fence video repair diminished reality(DR) structure from motion(SfM) light field rendering(LFR)