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Direct Production of High Pressure Hydrogen at Great Rate from Glycerol/Water/Metal Mixture

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Green and Sustainable Chemistry 2016年第3期6卷 136-142页

作者： Seiichi Deguchi Norifumi Isu noriyuki Kobayashi Hajime Ohtani Department of Energy Engineering and Science Nagoya University Nagoya Japan Kitchen and Bathroom Technology Research Institute LIXIL Corporation Tokoname Japan Department of Chemical Engineering Nagoya University Nagoya Japan Department of Life Science and Applied Chemistry Nagoya Institute of Technology Nagoya Japan

One of the key issues facing the global society today is to find renewable and sustainable energy sources. Hydrogen has gained much attention in recent years since it is one of fuels for fuel cells. It emits no carbon dioxide when it is used and so on. In this study, a great rate production of high pressure hydrogen rich gas from glycerol/water/metal mixtures was developed since glycerol has become one of the enormous industrial by-products, especially from biodiesel processing plants. It was found that cobalt was the optimum metal additive among tested metals of aluminum, cobalt, magnesium and nickel in terms of a hydrogen producing rate, a hydrogen partial pressure and a conversion ratio from 50 mol% glycerol/water mixtures under an operating temperature of 723 K. Concretely, hydrogen rich gas with concentration about 64%H2 and high partial pressure about 4 MPaN,H2 could be produced at the great producing rate of 42.9 LN,H2 dm-2min-1 and high conversion ratio about 60%H2. All the produced hydrogen rich gases from glycerol/water/metal mixtures were by no means inferior to pure hydrogen as a fuel for the polymer elec-trolyte fuel cell.

关键词： Great-Rate Hydrogen Production High Pressure Hydrogen Glycerol Reforming Sustainable Energy

Design and Implementation of a Programming Learning Support System Using the Concepts of Physical Visualization and Serious Gaming

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Journal of Computer and Communications 2022年第11期10卷 197-223页

作者： noriyuki Ishiguro Yusuke Saitoh Kazuhiro Yamamoto Hirohide Haga Graduate School of Science and Engineering Doshisha University Kyoto Japan

The purpose of this research is the design and implementation of a support system for learning programming. To archive this purpose, in this article, we propose a Puzzle Programming System that uses jigsaw puzzles as an example of the application of physical visualization, which visualizes logical constraints to physical ones. This Puzzle Programming System aims to teach basic programming concepts by presenting the invisible constraints of programming language syntax using the visual constraints of jigsaw puzzle pieces. This system runs on an Apple iPad and was developed using the Unity game engine. We used YAML as a data format for serializing structured data for data management. By inviting high school students to try out a prototype, we could confirm the usefulness of the Puzzle Programming System. The experimental evaluation results also shed light on aspects of the game that need to be redesigned and parts where the visual programming model needs to be modified and expanded.

关键词： Serious Gaming Augmented Reality Visual Programming Constraint Visualization

A Breast Density Classification System for Mammography Considering Reliability Issues in Deep Learning

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Open Journal of Medical Imaging 2023年第3期13卷 63-83页

作者： Eri Matsuyama Megumi Takehara noriyuki Takahashi Haruyuki Watanabe Faculty of Informatics University of Fukuchiyama Kyoto Japan Breast Center Dokkyo Medical University Hospital Tochigi Japan School of Hearth Sciences Fukushima Medical University Fukushima Japan School of Radiological Technology Gunma Prefectural College of Health Sciences Gunma Japan

In a convolutional neural network (CNN) classification model for diagnosing medical images, transparency and interpretability of the model’s behavior are crucial in addition to high classification accuracy, and it is highly important to explicitly demonstrate them. In this study, we constructed an interpretable CNN-based model for breast density classification using spectral information from mammograms. We evaluated whether the model’s prediction scores provided reliable probability values using a reliability diagram and visualized the basis for the final prediction. In constructing the classification model, we modified ResNet50 and introduced algorithms for extracting and inputting image spectra, visualizing network behavior, and quantifying prediction ambiguity. From the experimental results, our proposed model demonstrated not only high classification accuracy but also higher reliability and interpretability compared to the conventional CNN models that use pixel information from images. Furthermore, our proposed model can detect misclassified data and indicate explicit basis for prediction. The results demonstrated the effectiveness and usefulness of our proposed model from the perspective of credibility and transparency.

关键词： Explainable AI t-SNE Entropy Wavelet Transform Mammogram

Large Scale Classical MD for Nano-Indentation

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Large Scale Classical MD for Nano-Indentation

Transformation of atmospheric tritium in the environment

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational MechanicsⅠ

作者： Kenji Nishimura noriyuki Miyazaki Research Institute for Computational Sciences (RICS) Research Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 2 Tsukuba 305-8568 Japan Department of Chemical Engineering Kyushu University 6-10-1 Hakozaki Higashi-ku Fukuoka 812-8581

Nanoindentation method is applied to examine the mechanical properties of materials such as elastic and plastic deformation, fracture and friction. However, although the method has potential applications to determine nanoscale mechanical properties of small areas and thin films, the atomic scale mechanisms underlying the method are not well understood. In order to clarify the mechanisms, atomic scale simulations such as molecular dynamics have been carried out. The molecular dynamics simulations indicated that dislocation loops are nucleated under an indenter and glide on the slip plane, then dislocation structures due to dislocation interactions and the cross slip are formed in single crystalline metals [1,2]. Moreover, the influence of grain boundaries on the plastic deformation process in nanocrystalline metals [3] and the deformation process of ceramic materials [4] under nanoindentation were reported. In this study, we examine the initial stage of plastic deformation in nanoindentation process in a thin iron film using a molecular dynamics simulation. A rigid knife-like indenter is used in the simulation. We obtain a load-displacement curve under the action of an indenter. When the displacement of the indenter exceeds a yield point, the nucleation of dislocation loops is observed below the surface contacting with indenter sides. Then the Lomer-Cottrell reaction between the dislocation loops occurs directly beneath the indenter. In addition, new dislocation generated by the Lomer-Cottrell reaction moves in a different slip plane together with double kink formation with increasing the displacement and finally is separated into two dislocations.

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Transformation of atmospheric tritium in the environment

BEACH-Domain Proteins Act Together in a Cascade to Mediate Vacuolar Protein Trafficking and Disease Resistance in Arabidopsis

3rd China-Japan Workshop on the Tritium and Breeding Blanket Technology Program Guide

作者： noriyuki Momoshima Shinji Sugihara Radioisotope center Kyushu UniversityHakozakiHigashi-kuFukuoka 812-8581Japan

Three chemical forms of tritium has been observed in the atmosphere,those are tritiated water (HTO),elemental tritium(HT) and tritiated hydrocarbons(CHT).The concentrations of these chemical species are not so different,distributing from a few mBq/m to at most a few tens mBq/***,a significant difference are observed in their specific activities(T/H),ranging 3 orders of *** HT has the highest specific activity followed by *** specific activity of HTO is lowest among them and comparable to that of environmental *** enrichment mechanism of tritium to hydrogen(H) and methane(CH) is reported in the environment,suggesting HT and CHT probably coming from artificial sources.

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Molecular Plant 2015年第3期8卷 389-398页

作者： Ooi-kock Teh noriyuki Hatsugai Kentaro Tamura Kentaro Fuji Ryo Tabata Katsushi Yamaguch Shuji Shingenobu Masashi Yamada Mitsuyasu Hasebe Shinichiro Sawa Tomoo Shimada Ikuko Hara-Nishimura Graduate School of Science Kyoto University Sakyo-ku Kyoto 606-8502 Japan Research Centre for Cooperative Projects Hokkaido University Kita-ku Sapporo 060-8638 Japan Graduate School of Science and Technology Kumamoto University Kumamoto 860-8555 Japan Functional Genomics Facility National Institute for Basic Biology Okazaki 444-8585 Japan Department of Biology and IGSP Center for Systems Biology Duke University Durham NC 27708 USA Division of Evolutionary Biology National Institute for Basic Biology Okazaki 444-8585 Japan School of Life Science The Graduate University for Advanced Studies Okazaki 444-8585 Japan Present address: Department of Plant Biology and Forest Genetics Uppsala BioCenter Swedish University of Agricultural Sciences (SLU) and Linnean Centre ofPlant Biology Uppsala SE-75007 Sweden present address: Microbial and Plant Genomics Institute University of Minnesota St Paul MN 55108 USA Present address: RIKEN Innovation Center RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan

Membrane trafficking to the protein storage vacuole （PSV） is a specialized process in seed plants. However, this trafficking mechanism to PSV is poorly understood. Here, we show that three types of Beige and Chediak-Higashi （BEACH）-domain proteins contribute to both vacuolar protein transport and effector- triggered immunity （ETI）. We screened a green fluorescent seed （GFS） library of Arabidopsis mutants with defects in vesicle trafficking and isolated two allelic mutants gfs3 and gfs12 with a defect in seed pro- tein transport to PSV. The gene responsible for the mutant phenotype was found to encode a putative pro- tein belonging to group D of BEACH-domain proteins, which possess kinase domains. Disruption of other BEACH-encoding loci in the gfs12 mutant showed that BEACH homologs acted in a cascading manner for PSV trafficking. The epistatic genetic interactions observed among BEACH homologs were also found in the ETI responses of the gfs12 and gfs12 bchb-1 mutants, which showed elevated avirulent bacterial growth. The GFS12 kinase domain interacted specifically with the pleckstrin homology domain of BchCl. These results suggest that a cascade of multiple BEACH-domain proteins contributes to vacuolar protein transport and plant defense.

关键词： BEACH-domain protein Arabidopsis thaliana vacuolar protein transport protein storage vacuoles,plant immunity

Dynamic External Fixator Combined with Volar Locking Plate Fixation for the Treatment of AO Type C3 Distal Radius Fractures

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Open Journal of Orthopedics 2022年第4期12卷 131-141页

作者： Kinya Nishida Yong Ho Che Hideto Irifune Kazuhiro uesugi Akane Maeda Koji Miyata Department of Orthopaedic Surgery Teine Keijinkai Hospital Sapporo Japan

Background: AO type C3 distal radius fracture (DRF) is the most difficult-to-treat fracture type because of a tendency to shorten and collapse. The purpose of this study is to investigate the clinical and radiographic outcomes of comminuted intra-articular DRFs treated with a dynamic external fixator combined with a volar locking plate (VLP). Methods: Eleven patients (mean age, 61 years) with comminuted intra-articular DRFs were treated with a dynamic type of external fixator combined with a VLP. Following reduction and fixation with a VLP, the dynamic external fixator was applied and the distal ball joint of the fixator was aligned with the lunate-capitate line. The ball joint was unlocked approximately 2 weeks after surgery to allow wrist mobilization. The fixator was removed 3 - 6 weeks (mean, 5 weeks) after surgery. Consequently, clinical and radiographic assessments were carried out at the final follow-up. Results: At the final follow-up, the mean range values of wrist extension and flexion were 76°and 64°, respectively. Compared with the contralateral side, the mean grip strength was 84%. The mean Modified Mayo Wrist Score and the Disabilities of the Arm, Shoulder and Hand score were 88 and 9, respectively. No significant differences in the radiographic parameters exist between after surgery and final follow-up. Conclusions: This study indicated that the dynamic wrist fixator combined with a VLP is effective for the treatment of AO type C3 DRFs.

关键词： Distal Radius Fracture Intra-Articular Fracture External Fixator Dynamic External Fixator Volar Locking Plate

Crystal Structure Study on Non-Coplanarly Organized Accumulating Aromatic Rings Molecules: Spatial Organization of C,C,N-Triaryl Substituted Imines

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Crystal Structure Theory and Applications 2013年第4期2卷 139-147页

作者： Akiko Okamoto Atsushi Nagasawa Siqingaowa noriyuki Yonezawa Department of Organic and Polymer Materials Chemistry Tokyo University of Agriculture and Technology Tokyo Japan

The X-ray crystal structures of C,C,N-triaryl-substituted imine compounds, which have methoxy or hydroxy group adjacent to the imino moiety, are reported and discussed in comparison with those of the precursor ketone compounds, 1-(4-chlorobenzoyl)-2,7-dimethoxynaphthalene and 1-(4-chlorobenzoyl)-2-hydroxy-7-methoxynaphthalene. In crystals, three aromatic rings in a molecule of the methyl ether-retained imine compound are positioned almost perpendicularly to each other by giving non-coplanar spatial organization of the single molecular structure [dihedral angles: 85.32(18)° for C-linked phenyl ring and naphthalene ring;79.27(17)° for N-linked phenyl ring and naphthalene ring;84.78(17)° for C-linked phenyl ring and N-linked phenyl ring]. Spatial organization of the analogous methyl ether-cleaved imine compound has essentially same topology [dihedral angles 80.39(6)° for the C-linked phenyl ring and naphthalene ring;82.35(6)° for the N-linked phenyl ring and naphthalene ring;87.09(7)° for C- and N-linked phenyl rings]. These structural features of triarylimines apparently differ from those of the precursor ketones. Two aromatic rings in the methyl ether-cleaved ketone compound make smaller dihedral angle [58.10(6)°] by intramolecular hydrogen bond between ketonic carbonyl group and hydroxy group [2.5573(16) A] than that of the methyl ether-retained ketone [72.06(7)°]. In molecular packing, the methyl ether-retained imine forms tubular molecular alignments composed of R—S dimeric molecular pairs, whereas the methyl ether-retained ketone affords consecutively stacks of one configurated molecules.

关键词： Non-Coplanarly Accumulated Aromatic Rings Spatial Organization Triarylimine

Assessment of Regional Dietary Exposure to Dioxins in Seafood in Japan

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Assessment of Regional Dietary Exposure to Dioxins in Seafoo...