Search Results 1-20 of 11094

  • First-principles calculation of elastic properties of Cu-Zn intermetallic compounds for improving the stiffness of aluminum alloys

    Iwaoka Hideaki , Hirosawa Shoichi

    … In this study, we computed the elastic properties of Cu-Zn binary intermetallic compounds, CuZn, Cu5Zn8 and CuZn4, by first-principles calculation and discussed the capability of the improvement in stiffness of aluminum alloys by aging treatment. … The disordered CuZn4 with random atom distribution was emulated for the first time by virtual crystal approximation (VCA) model and special quasirandom structure (SQS) model with symmetry-based projection (SBP) technique. …

    Computational Materials Science (174), 109479, 2020-03

    IR 

  • Recommendation of Imputing Value for Sensor Data based on Programming by Example

    Hiroko Nagashima , Yuka Kato

    … Many tools and methods are available for reducing preprocessing time. … We also define k-Shape as the calculation of the rate of similarity of time-series data. … Many tools and methods are available for reducing preprocessing time. … We also define k-Shape as the calculation of the rate of similarity of time-series data. …

    情報処理学会論文誌 61(2), 2020-02-15

    IPSJ 

  • Accuracy Improvement and Reduction of Calculation Amount in Automatic Path Tracking Control for Cars Based on Just-in-time Modeling  [in Japanese]

    信宮 繭 , 甲斐 健也

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 119(401), 47-52, 2020-01-30

  • Accuracy Improvement and Reduction of Calculation Amount in Automatic Path Tracking Control for Cars Based on Just-in-time Modeling  [in Japanese]

    信宮 繭 , 甲斐 健也

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 119(400), 47-52, 2020-01-30

  • ESTIMATION OF SEISMIC DISPLACEMENT FROM STRONG MOTION ACCELERATION RECORD BY ELIMINATING STEP FUNCTION COMPONENT  [in Japanese]

    MORIWAKI Misa , HIRAI Takashi , FUKUWA Nobuo

    … In particular, a near-fault seismic ground motion including the huge residual displacement may cause the large response of tall buildings and base isolated buildings.</p><p> The residual displacement due to the earthquake is obtained from geodetic observations such as GNSS, while the time series of the displacement including the residual component can be estimated using the strong ground motion record. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (767), 29-37, 2020-01

    J-STAGE  AIJ 

  • Vibration control of mulch modes of inverter motor stator using imperfect mass and Houde dampers  [in Japanese]

    吉武 裕 , 南 克樹 , 茅原 晃希 , 片原田 浩之 , 山崎 豪

    … Regarding the vibration control of the ring considering two modes, the effective vibration control method was investigated from the numerical calculation using the ring theory. … (3) When quenching the second and fourth modes at the same time, it should be designed with priority on quenching the resonance amplitude of the second order mode. …

    長崎大学大学院工学研究科研究報告 50(94), 42-46, 2020-01

    IR 

  • Determination of Atmospheric Radiocesium by Analyzing Filter-tapes Used in Automated Suspended Particulate Matter Monitors

    OURA Yasuji , TSURUTA Haruo , EBIHARA Mitsuru , OHARA Toshimasa , NAKAJIMA Teruyuki

    <p>著者らは,2011年に発生した東京電力福島第一原子力発電所(以下,原発と記す)事故で放出された放射性セシウム(<sup>134</sup>Csと<sup>137</sup>Cs)の原発事故当時の大気中濃度の定量を,大気汚染常時監視網として全国に設置されている浮遊粒子状物質(SPM)自動測定機(以下,SPM計と記す)で事故当時にテープ …

    BUNSEKI KAGAKU 69(1.2), 1-9, 2020

    J-STAGE 

  • Numerical back-analysis and effective prediction of the long-term settlement of airport high fill

    Huang Jian , Luo Ting , Yan Hongye , Chen Feng , Zhang Qianli

    … Therefore, it is crucial to study the calculation method and effective prediction range of long-term settlement. … In this paper, a numerical back-analysis platform based on genetic algorithm and time-dependent UH model is established. … It is verified that the numerical calculation based on time-dependent UH model is applicable to predict the long-term settlement by the settlement monitoring data of the high fill in Chengde Airport, Hebei province. …

    Japanese Geotechnical Society Special Publication 8(3), 64-69, 2020

    J-STAGE 

  • Numerical simulation of creep settlement for high railway foundations based on the UH model considering time effect

    Chen Wei , Wang Naidong , Yan Hongye , Chen Feng , Zhang Qianli

    … In the creep calculation, the calculation parameters should have practical physical meaning. … Therefore, based on the UH model considering time effect, the secondary development of ABAQUS software is realized, and the finite element simplified model of the high-speed railway in a section near Qufu East Station is established. …

    Japanese Geotechnical Society Special Publication 8(3), 47-52, 2020

    J-STAGE 

  • Study on inverse calculation of load based on settlement of wooden pillar at Tianluoshan site

    Li Jiacheng , Tang Xiaowu , Yu Yue , Sun Guoping , Liang Jiaxin

    … Based on the huge settlement founded under wooden pillars at this site, the historical load on the wooden pillar was calculated in reverse according to the calculation method of foundation settlement. … Then the tribal architectural form at that time can be inferred according to the layout map of the wooden pillar at the Tianluoshan site. …

    Japanese Geotechnical Society Special Publication 8(13), 526-531, 2020

    J-STAGE 

  • Study on application of artificial neural network to debris bed coolability calculations for sodium-cooled fast reactors

    MATSUO Eiji , SASA Kyohei , SAITO Hiroyuki , ABE Yutaka

    … For the understanding, a huge number of calculations are required but are extremely difficult to perform because a huge number of calculations require much calculation time to solve non-steady equations in the coolability calculation model. … The application of ANN is expected to exponentially improve the calculation speed of debris bed coolability because ANN provides results from experimental rules learned through training without solving non-steady equations. …

    Mechanical Engineering Journal, 2020

    J-STAGE 

  • A new evaluation method of blood flow waveforms for lower limb arterial stenosis  [in Japanese]

    KUBOTA Yoshinori

    … <p>下肢動脈狭窄に対する新しい血流波形評価法-TVF;transit time of vessel flow.下腿領域動脈の超音波検査は細く見づらい血管が対象であり,実施困難な検査部位の代表である.TVFは下腿領域動脈の潅流状態を評価するための指標であり,通常検査の中で計測されている血流波形から算出できる利点がある.過去の保存データからも再計算が可能である.TVFの算出には生理的変動の影響が含まれるため,計測時には安静 …

    Choonpa Igaku, 2020

    J-STAGE 

  • Study on high-speed calculation of debris bed coolability for sodium-cooled fast reactors

    MATSUO Eiji , SASA Kyohei , ABE Yutaka , SHIBATA Akihiro

    … This paper describes a calculation model and a technique for high-speed calculations of debris bed coolability. … Firstly, the detailed coolability calculation model taking into account phase change and vapor-liquid advection for a boiling zone in the debris bed is derived as a single equation. … In addition, the streamlined calculation which ignores inertial and gravitational effects for the boiling zone is proposed. …

    Mechanical Engineering Journal, 2020

    J-STAGE 

  • Development of a Decision Support Tool for GHG Emissions and Procurement Costs with Material Recommendation  [in Japanese]

    UMETA Kohei , KONDO Rena , KINOSHITA Yuki , YAMADA Tetsuo , YAMADA Shuho , INOUE Masato

    … However, the estimation method often causes longer estimation time and errors for inputting data throughout the estimation processes because the method requires to refer to several different databases manually. … Next, it is described processes of automatic calculation in the developed tool and recommendation function for GHG emissions and procurement costs. …

    JOURNAL OF JAPAN SOCIETY FOR DESIGN ENGINEERING, 2020

    J-STAGE 

  • Event-triggered and Self-triggered Formation Control of a Linear Multi-agent System  [in Japanese]

    Toyota Ryo , Kotani Kento , Namerikawa Toru

    … <p>In this paper, a distributed event-triggered formation control algorithm for a multi-agent system which consists of linear discrete-time agents is proposed. … Those energy consumption due to unneecessary calculation and communication of agents may shorten battery life of agents. …

    IEEJ Transactions on Electronics, Information and Systems 140(3), 303-311, 2020

    J-STAGE 

  • Acceleration of nonequilibrium Green's function simulation for nanoscale FETs by applying convolutional neural network model

    Souma Satofumi , Ogawa Matsuto

    … The results indicate that the use of a single trained CNN model in the NEGF self-consistent calculation along with Poisson's equation produces accurate potentials for a wide range of the gate lengths, and all within a significantly shorter computational time than the conventional NEGF calculations.</p> …

    IEICE Electronics Express 17(4), 20190739-20190739, 2020

    J-STAGE 

  • Mesh generation in finite flement frame fields on 2D planes  [in Japanese]

    MORITA Naoki , HORIE Masanobu , SUTO Kai

    … <p>In numerical analyses based on unstructured meshes represented by the finite element method, quadrilateral and hexa-hedral meshes are used for a two-dimensional and a three-dimensional analyses, respectively, from the viewpoint of calculation accuracy and computation time. …

    Transactions of the JSME (in Japanese) 86(882), 19-00337-19-00337, 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

    … 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. … The computing time is only 68 ms which proves the feasibility of online application.</p> …

    MATERIALS TRANSACTIONS, 2020

    J-STAGE 

  • Special Issue on Wearable Robotics and Mechatronics Technology

    Tanaka Takayuki , Kurita Yuichi , Shima Keisuke , Miki Norihisa

    … <p>Many wearable devices have been developed and are being currently used, owing to the miniaturization of computers and electronic devices and advancements in calculation processing algorithms. …

    Journal of Robotics and Mechatronics 32(1), 137-137, 2020

    J-STAGE 

  • Recommendation of Imputing Value for Sensor Data based on Programming by Example

    Nagashima Hiroko , Kato Yuka

    … Many tools and methods are available for reducing preprocessing time. … We also define k-Shape as the calculation of the rate of similarity of time-series data. …

    Journal of Information Processing 28(0), 102-111, 2020

    J-STAGE 

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