検索結果 1212件中 1-20 を表示

  • Multiprocessor Semi-fixed-priority Scheduling

    Hiroyuki Chishiro

    … Optimal multiprocessor real-time scheduling can achieve full system utilization with implicit-deadline periodic task sets. … The actual case execution time of each task is usually shorter than its WCET and imprecise computation is an effective method to make better use of the remaining processor time. …

    情報処理学会論文誌 59(2), 2018-02-15

    情報処理学会

  • Countering power analysis attacks by exploiting characteristics of multicore processors

    Yang Jianwei , Dai Fan , Wang Jielin , Zeng Jianmin , Zhang Zhang , Han Jun , Zeng Xiaoyang

    … This paper proposes three kinds of countermeasures for Differential Power Analysis (DPA) attacks by fully exploiting characteristics of a many-core processor: (1) Data-level parallelism, (2) Random Dynamic Task Scheduling (RDTS), and (3) Random Dynamic Adjustment (RDA), which combines RDTS, Random Dynamic Frequency Scaling (RDFS) and Random Dynamic Phase Adjustment (RDPA). … Simulation results show that these countermeasures considerably improve the system security with little performance overhead.</p> …

    IEICE Electronics Express 15(7), 20180084-20180084, 2018

    J-STAGE

  • 住宅種別及び築年と居住者年齢構成の関係を用いた人口・年齢構成推計法

    李 鎔根 , 大月 敏雄

    … The error rate of each age cohort under 65 years old was only 3.6%.<br> To show an example of application, we conduct a simulation. … The goal of the simulation is to adjust age structure of an area to target age structure by adjusting the ration of types of house. … The target area of this simulation is UR collective housing area where reconstruction is in progress. …

    日本建築学会計画系論文集 83(744), 177-185, 2018

    J-STAGE

  • Multiprocessor Semi-fixed-priority Scheduling

    Chishiro Hiroyuki

    … <p>Optimal multiprocessor real-time scheduling can achieve full system utilization with implicit-deadline periodic task sets. … The actual case execution time of each task is usually shorter than its WCET and imprecise computation is an effective method to make better use of the remaining processor time. …

    Journal of Information Processing 26(0), 202-211, 2018

    J-STAGE

  • Optimal Estimation Method of Temporal Odor Concentration Profile for Plume Tracking in Dynamic Turbulent Environment

    Muhtadi Muis , Nakamoto Takamichi

    … <p>Tracking a dynamic odor plume to the odor source in a real world environment using a chemical sensor is not a trivial task. … This paper presents a simulation framework for the development and evaluation of a tracking strategy in a consistent virtual environment. … A dynamic turbulent environment model with an odor source was modeled using Computational Fluid Dynamics (CFD) software, and the resulting data were used for a plume tracking simulation. …

    電気学会論文誌. E, センサ・マイクロマシン部門誌 138(1), 15-22, 2018

    J-STAGE

  • Design Study of Domain Decomposition Operation in Dataflow Architecture FDTD/FIT Dedicated Computer

    KAWAGUCHI Hideki

    … Then the remaining task of this work is large scale computations by the dedicated computer, since microwave simulations for only 18×18×<i>Z</i> …

    IEICE Transactions on Electronics E101.C(1), 20-25, 2018

    J-STAGE

  • 大島丸主機スタンバイシーケンサを用いたERM 訓練の実施

    杉本 昌弘

    … The main engine stand-by sequencer of the training ship "Oshima-maru" was recently replaced with a new system incorporating a simulation function in order to improve effectiveness of cadet training both for machinery operations and Engine-room Resource Management (ERM). … Each machinery operation can be simulated by input signals from a note PC when the stand-by sequencer is in a simulation mode. …

    大島商船高等専門学校紀要 50, 5-10, 2017-12

    機関リポジトリ

  • Quadriceps force and anterior tibial force occur obviously later than vertical ground reaction force: a simulation study

    Ueno Ryo , Ishida Tomoya , Yamanaka Masanori , Taniguchi Shohei , Ikuta Ryohei , Samukawa Mina , Saito Hiroshi , Tohyama Harukazu

    … Background: Although it is well known that quadriceps force generates anterior tibial force, it has been unclear whether quadriceps force causes great anterior tibial force during the early phase of a landing task. … The purpose of the present study was to examine whether the quadriceps force induced great anterior tibial force during the early phase of a landing task. … Methods: Fourteen young, healthy, female subjects performed a single-leg landing task. …

    BMC musculoskeletal disorders 18, 467, 2017-11-18

    機関リポジトリ DOI

  • Symbiotic Navigation in Multi-Robot Systems with Remote Obstacle Knowledge Sharing

    Ravankar Abhijeet , Ravankar Ankit A. , Kobayashi Yukinori , Emaru Takanori

    … Large scale operational areas often require multiple service robots for coverage and task parallelism. … A lazy information update scheme is presented in which only relevant information affecting the current task is updated for efficiency. … The advantages of the proposed method for path planning are discussed against traditional method with experimental results in both simulation and real environments. …

    Sensors 17(7), 1581, 2017-07

    機関リポジトリ DOI

  • Property-driven functional verification technique for high-speed vision system-on-chip processor

    Nshunguyimfura Victor , Yang Jie , Liu Liyuan , Wu Nanjian

    … The implementation of functional verification in a fast, reliable, and effective manner is a challenging task in a vision chip verification process. … Our experimentation results show that the proposed technique can effectively improve the verification effort up to 20% for the complex vision chip design while reducing the simulation and debugging overheads. …

    Jpn. J. Appl. Phys. 56(4S), 04CF15, 2017-03-28

    応用物理学会

  • Adaptive Baseline Enhances EM-Based Policy Search: Validation in a View-Based Positioning Task of a Smartphone Balancer

    Jiexin Wang , Eiji Uchibe , Kenji Doya

    … The simulation results of benchmark tasks of pendulum swing up and cart-pole balancing, and standing up and balancing of a two-wheeled smartphone robot showed improved performances. … We further implemented the adaptive baseline with mean in our two-wheeled smartphone robot hardware to test its performance in the standing up and balancing task, and a view-based approaching task. …

    Frontiers in Neurorobotics 11(1), 1-15, 2017-01-23

    機関リポジトリ DOI

  • Adaptive Baseline Enhances EM-Based Policy Search: Validation in a View-Based Positioning Task of a Smartphone Balancer

    Wang Jiexin , Uchibe Eiji , Doya Kenji

    … The simulation results of benchmark tasks of pendulum swing up and cart-pole balancing, and standing up and balancing of a two-wheeled smartphone robot showed improved performances. … We further implemented the adaptive baseline with mean in our two-wheeled smartphone robot hardware to test its performance in the standing up and balancing task, and a view-based approaching task. …

    Frontiers in Neurorobotics 11, 2017-01-23

    機関リポジトリ DOI

  • インパクト直後におけるバドミントン・シャトルコックの飛翔挙動に関する研究

    橋口 友洋 , 鷲田 雄大 , 吉田 聡 , 大友 隆行

    … In order to verify the accuracy of behavior prediction by simulation, the impact test of a shuttlecock was carried out. … For the simulation model, the stiffness obtained by measurement was used. … The results showed that 1) although the center of gravity velocity contained error between simulation and experimental, the trend of change was consistent. …

    シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集 2017(0), B-19, 2017

    J-STAGE

  • ワイヤエンコーダによるタスク提示システムのキネマティクス

    花原 和之

    東北支部総会・講演会 講演論文集 2017.52(0), 179, 2017

    J-STAGE

  • マインドセット操作によるマーケティングリサーチの精度向上は可能か?

    竹内 真登

    … <p>The purpose of this study was to examine how the interpretability of a purchased product changes by mindset manipulations based on the Mental Simulation (MS) or Construal Level Theory (CLT). … In this experiment, participants were randomly assigned to four groups (photo-simulation manipulation (MS) vs. how-manipulation (MS) vs. low-level manipulation (CLT) vs. non-manipulation); … they completed each task and conjoint measurement. …

    行動計量学 44(2), 151-165, 2017

    J-STAGE

  • Analysis of the Driver Attention under Curved Road Conditions

    KANG Xuejian , NAMGUNG Moon , WANG Weijie , KIM Wonchul

    … Driving around curved road is a usual task performed by many on a daily basis but the underlying influences of attention of the driver under different curve conditions largely unknown. …

    Journal of the Eastern Asia Society for Transportation Studies 12(0), 1931-1949, 2017

    J-STAGE

  • ライフログデバイスを用いた 複雑タスク環境下におけるワークロード推定に関する研究

    小川 剛史 , 佐藤 博則 , 狩川 大輔 , 高橋 信

    … A wearable sensing device called JINS MEME was introduced to obtain operators' electrooculography (EOG), acceleration, and gyro sensor data while they handled a complex simulation task provided by Smart Grid Simulator. …

    ヒューマンインタフェース学会論文誌 19(4), 343-354, 2017

    J-STAGE

  • プロセスシミュレーションを伴うコンジョイント測定による購買予測

    竹内 真登 , 星野 崇宏

    … <p>The purpose of this study is to demonstrate that process simulation can improve the prediction accuracy of marketing research. … First, we argue that photo-simulation-manipulation, proposed by Takeuchi (2015), is based on process simulation. … Considering this argument, we conduct a randomized experiment in which participants are assigned to three groups (photo-simulation-manipulation vs. how-manipulation vs. non-manipulation). …

    行動計量学 44(1), 45-56, 2017

    J-STAGE

  • 活性化拡散モデルに基づく強化学習エージェントの方策選択手法

    高桑 優作 , 河野 仁 , 温 文 , 神村 明哉 , 富田 康治 , 鈴木 剛

    Simulation results show that reinforcement learning agent achieves task by selecting the optimal one from multiple policies by the proposed method and from the comparison of transfer learning with the proposed method and the learning efficiency of ordinary reinforcement learning, the usefulness of the proposed method.</p> …

    ロボティクス・メカトロニクス講演会講演概要集 2017(0), 2P2-E04, 2017

    J-STAGE

  • 原子力災害対応に向けたシミュレーション技術開発

    鈴木 健太 , 磯和 充 , 堀内 一憲 , 伊藤 倫太郎 , 川端 邦明

    … For realizing efficient task execution, we are developing a robotic simulator system to contribute to design the robots and train the operators. … Currently, we are implementing additional simulation functions of physical behavior of the multicopter and dose visualization by the gamma camera. …

    ロボティクス・メカトロニクス講演会講演概要集 2017(0), 2P1-R11, 2017

    J-STAGE

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