Search Results 1-20 of 7176

  • NUMERICAL EVALUATION OF THE INFLUENCE OF SALT DAMAGE BY IMPROVEMENT OF THE SHELTER:-Study on the conservation of a stone Buddha carved into a cliff at Motomachi PART 2-  [in Japanese]

    TAKATORI Nobumitsu , OGURA Daisuke , WAKIYA Soichiro , ABUKU Masaru , KIRIYAMA Kyoko

    … By numerical analysis, we modeled the cliff including the stone Buddha in two dimensions and the wall of the shelter in one dimension, and analyzed the heat and moisture behavior. … In addition, we built a combining model to calculate the temperature and humidity in the shelter, and we verified the validity about the analytical results by reproducing the hygro-thermal environment in the shelter during the period from November 2014 to October 2017. …

    Journal of Environmental Engineering (Transactions of AIJ) (768), 137-147, 2020-02

    J-STAGE  AIJ 

  • Numerical simulation of two-phase flow in 4x4 simulated bundle

    ONO Ayako , YAMASHITA Susumu , SUZUKI Takayuki , YOSHIDA Hiroyuki

    … And the model and empirical correlation are allowed to be applied only in the range where the experiments were implemented. … The detailed numerical simulation method can provide much information relating to the two-phase flow such as the bubble size, its velocity, and detailed void distribution which, for example, are needed to predict the critical heat flux based on the mechanism. …

    Mechanical Engineering Journal, 2020

    J-STAGE 

  • Phase-field lattice Boltzmann simulation of minute droplet onto isotropic porous media  [in Japanese]

    SUGIMOTO Makoto , KANEDA Masayuki , SUGA Kazuhiko

    … This two-phase flow is governed by physical properties of liquid and porous media. … It requires to consider not only the physical properties of two-phase flow but also the solid structure. … We employed the phase-field lattice Boltzmann method (PFLBM) to compute the two-phase flow on the complicated structures. …

    Transactions of the JSME (in Japanese), 2020

    J-STAGE 

  • Factors Affecting Conservation Behaviors toward Suburban Satoyama Landscape by Using Two-phase Model of Pro-environmental Behavior  [in Japanese]

    MATSUMURA Koji , HASHIMOTO Shizuka

    … <p>This study aimed to clarify factors affecting the conservation activities of Satoyama landscapes of suburban areas,employing a two-phase model of pro-environmental behavior (two-phase model). …

    Landscape Research Japan Online 13(0), 1-7, 2020

    J-STAGE 

  • Development of stress on quartz grain in illite ceramics during cooling stage of firing

    ŠTUBŇA Igor , MÁNIK Marek , HÚLAN Tomáš , TRNÍK Anton

    … A model of two concentric spheres, in which the inner sphere is a quartz grain and its spherical cladding is glassy phase, is proposed. …

    Journal of the Ceramic Society of Japan 128(3), 117-123, 2020

    J-STAGE 

  • BER due to Intersymbol Interference in Maximal-Ratio Combining Reception Analyzed Based on Equivalent Transmission-Path Model

    KARASAWA Yoshio

    … <p>The equivalent transmission-path model is a propagation-oriented channel model for predicting the bit error rate due to intersymbol interference in single-input single-output systems. … We extend this model to develop a new calculation scheme for maximal-ratio combining diversity reception in single-input multiple-output configurations. …

    IEICE Transactions on Communications E103.B(3), 229-239, 2020

    J-STAGE 

  • Optimal Combination of Features on Gadoxetate Disodium-enhanced MR Imaging for Non-invasive Differential Diagnosis of Hepatocellular Carcinoma: The JAMP-HCC Study

    Ichikawa Shintaro , Motosugi Utaroh , Morisaka Hiroyuki , Kozaka Kazuto , Goshima Satoshi , Ichikawa Tomoaki

    … combination of gadoxetate disodium-enhanced magnetic resonance imaging (MRI) findings for the diagnosis of hepatocellular carcinoma (HCC) and to compare its diagnostic ability to that of dynamic computed tomography (CT) in patients with chronic liver disease.</p><p>Methods: This multi-institutional study consisted of two parts: Study 1, a retrospective study to determine the optimal combination of gadoxetate disodium-enhanced MRI findings (decision tree and logistic model) to distinguish HCC (<i>n</i> …

    Magnetic Resonance in Medical Sciences, 2020

    J-STAGE 

  • Study on the flow and heat transport characteristics of concentric-tube two-phase thermosyphon

    HONGO Takuya , MIYACHI Yuki , KIMURA Rei , HORIE Hideki , TAKAMATSU Tomonao , IWAKI Chikako

    … <p>Two-phase thermosyphons, which use sodium at 960 K as a refrigerant for heat transportation in small nuclear reactors, are promising for manned exploration to Mars. … Experimental investigations of heat transport characteristics using water, R113, ethanol, and nitrogen as refrigerants and development of prediction formulas are progressing for establishing the design of the concentric-tube two-phase thermosyphon. …

    Mechanical Engineering Journal, 2020

    J-STAGE 

  • Online Roll Force Model for Non-Oriented Electrical Steel Considering Temperature-Transformation-Roll Force Coupling Effect

    Liu Chao , He Anrui , Mi Zhenli , Sun Wenquan , Song Yong

    … The uneven temperature along width and thickness direction will lead to the difference of phase transformation. … Due to the high-temperature deformation characteristic in dual-phase region is exactly opposite to that in single-phase region, the transformed fraction should be considered in the calculation of roll force. … In order to make up for the deficiency of the traditional roll force prediction model. …

    MATERIALS TRANSACTIONS, 2020

    J-STAGE 

  • Unlicensed Band Allocation for Heterogeneous Networks

    CHOU Po-Heng

    … In this paper, we propose an analytical model and conduct simulation experiments to study two allocations for the unlicensed band: unlicensed full allocation (UFA), unlicensed time-division allocation (UTA), and the corresponding buffering mechanism for the LAA data packets. … Our study provides guidelines for designing channel occupation phase and the buffer size of LAA small cell.</p> …

    IEICE Transactions on Communications E103.B(2), 103-117, 2020

    J-STAGE 

  • 1G and Microgravity Tank Self-Pressurization: Experiments and CFD Model Validations across Ra and Bo Regimes

    KASSEMI Mohammad , HYLTON Sonya , KARTUZOVA Olga

    … Special attention is devoted to the heat and mass transport, fluid flow and phase change phenomena that govern tank pressurization and pressure control under 1G and microgravity conditions in terms of three computational-experimental case studies. …

    International journal of microgravity science and application 37(1), 370103, 2020

    J-STAGE 

  • Development of High Accuracy Segmentation Model for Microstructure of Steel by Deep Learning

    Ajioka Fumito , Wang Zhi-Lei , Ogawa Toshio , Adachi Yoshitaka

    … <p>We studied on automation of segmentation using deep learning, which has been remarkably developed in recent years.</p><p>For the microstructural image of ferrite-martensite dual phase steel, we tried to segment the ferrite phase, martensite phase, and ferrite grain boundary in different colors individually. …

    ISIJ International, 2020

    J-STAGE 

  • Accuracy Evaluation of Phase-field Models for Grain Growth Simulation with Anisotropic Grain Boundary Properties

    Miyoshi Eisuke , Takaki Tomohiro , Ohno Munekazu , Shibuta Yasushi

    … <p>The phase-field method has been widely employed recently for simulating grain growth. … Phase-field grain growth models are classified into two types according to their conservation constraints for phase-field variables: the multi-phase-field model and the continuum-field model. …

    ISIJ International 60(1), 160-167, 2020

    J-STAGE 

  • An approach to the behavior of "looking-for-something"(Part 3)Analysis of the specific actions in the search of lost objects  [in Japanese]

    佐々木 土師二

    … Specific actions in the behavior of "looking-for-something" were compiled from 10 internet-sites, and were classified into two categories, namely, actual performance and readiness to act. … Subsequently, a two-dimensional model was proposed for each of actions in the "start-phase" and the "searching-phase". …

    関西大学社会学部紀要 = Bulletin of the Faculty of Sociology, Kansai University 51(1), 31-45, 2019-10

    IR 

  • Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at √s=13  TeV

    原 和彦 , 大川 英希 , 佐藤 構二 , 受川 史彦 , ATLAS Collaboration , Kazuhiko HARA , Hideki OKAWA , Koji SATO , Fumihiko UKEGAWA

    … The fragmentation properties of the more forward and the more central of the two leading jets from each event are studied. … Comparisons with parton shower Monte Carlo generators indicate that existing models provide a reasonable description of the data across a wide range of phase space, but there are also significant differences. …

    Physical review D 100(5), 052011, 2019-09

    IR 

  • Correspondence between phase oscillator network and classical XY model with the same random and frustrated interactions

    Kimoto Tomoyuki , Kimoto Tomoyuki , Uezu Tatsuya , Uezu Tatsuya

    … (c) 2019 American Physical SocietyWe study correspondence between a phase oscillator network with distributed natural frequencies and a classical XY model at finite temperatures with the same random and frustrated interactions used in the Sherrington-Kirkpatrick model. …

    Physical review. E 100(2), 032918-1, 2019-08-27

    IR 

  • Effect of dormancy on the development of phloem fiber clusters

    Baba Keiichi , Kurita Yuko , Mimura Tetsuro

    … The development of phloem fibers was investigated in poplars grown under artificially fixed conditions and under an artificially shortened annual cycle system that includes a dormancy phase. … The phloem tissues in these trees formed two- or three-layer fiber clusters; … Furthermore, these results imply that dormancy affects the development of phloem fibers, and that the shortened annual cycle system is a useful model for investigating phloem development caused by dormancy repetition. …

    Journal of Wood Science 65(1), 40, 2019-08-09

    IR 

  • Effect of dormancy on the development of phloem fiber clusters

    Baba Kei'ichi , Kurita Yuko , Mimura Tetsuro

    … The development of phloem fibers was investigated in poplars grown under artificially fixed conditions and under an artificially shortened annual cycle system that includes a dormancy phase. … The phloem tissues in these trees formed two- or three-layer fiber clusters; … Furthermore, these results imply that dormancy affects the development of phloem fibers, and that the shortened annual cycle system is a useful model for investigating phloem development caused by dormancy repetition. …

    Journal of Wood Science (65), 2019-08-09

    IR 

  • 3. Reactor Physics and Reactor Engineering

    … In case that corrections are made, an errata will be provided in the following webpage: https://www.rri.kyoto-u.ac.jp/PUB/report/PR/ProgRep2018/ProgRep2018.htmlCO3-1 Local Two-phase Flow Characteristics for 6x6 Rod Bundle Geometry /X. … Sano et al.(CA3012) [150]CO3-15 Neutron Measurement Experiment Using Thin Type Experimental Model of the SiC Semiconductor Detector /M. …

    KURNS Progress Report (2018), 137-153, 2019-08

    IR 

  • Effect of Pearlite Volume Fraction on Two-step Ductile to Brittle Transition in Ferrite + Pearlite Structure Steel Sheets

    Kawata Hiroyuki , Umezawa Osamu

    … however, their performance depends on the volume fraction of the secondary phase. … In our previous study, ferrite + pearlite structural steel sheet showed the characteristic two-step ductile-to-brittle transition (DBT) with decreasing temperature, and the absorbed energy curve exhibited a distinct middle shelf. …

    ISIJ International 59(7), 1344-1353, 2019-07-15

    IR 

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