Search Results 1-20 of 87

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  • Structural Analyses on Residents' Decision Making to Evacuate under River Flooding  [in Japanese]

    田中 皓介 , 梅本 通孝 , 糸井川 栄一 , Kosuke TANAKA , Michitaka UMEMOTO , Eiichi ITOIGAWA

    … Based on the obtained data, we constructed structural equation models on residents' decision making to evacuate by using simultaneous analysis of four districts in the city. … Through interpretation and consideration about these models, we suggested effective measures to promote evacuation for each district. …

    地域安全学会論文集 = Journal of Social Safety Science (33), 187-197, 2019-06

    IR 

  • A proposal of time-lapse analysis method in electrical resistivity tomography for the monitoring of chemical grouting  [in Japanese]

    Shimizu Tomoaki , Oda Yoshiya

    <p>薬液注入の浸透過程を監視できれば,注入圧,注入量を適宜に変更でき,地盤改良の品質向上を期待できる。比抵抗トモグラフィはこれを実現するための有力な手法である。しかし,同法における従来の解析法は時間ステップでの計測データを個別に解いて比抵抗分布を推定するものであり,注入途中すなわち測定中の比抵抗分布の変化を考慮できないために常時の監視は困難であった。そこで本研究では,これを考慮できる …

    BUTSURI-TANSA(Geophysical Exploration) 72(0), 139-154, 2019

    J-STAGE 

  • Parameter Identification of a Three-dimensional Flexible Ring-based Model of a Tire Using Experimental Modal Analysis

    Matsubara Masami , Kawamura Shozo

    … A flexible ring-based model is simple, comprehensive, and accurate, and has been most frequently adopted in tire models with a low degree-of-freedom. … The experimental modal analysis entailed the use of a method based on an iterative simultaneous equation and confirmed that it was possible to estimate the modal parameters with high accuracy. …

    International Journal of Automotive Engineering 10(2), 133-138, 2019

    J-STAGE 

  • Structural Analyses on Residents' Decision Making to Evacuate under River Flooding  [in Japanese]

    TANAKA Kosuke , UMEMOTO Michitaka , ITOIGAWA Eichi

    … Based on the obtained data, we constructed structural equation models on residents' decision making to evacuate by using simultaneous analysis of four districts in the city. … Through interpretation and consideration about these models, we suggested effective measures to promote evacuation for each district.</p> …

    Journal of Social Safety Science 33(0), 187-197, 2018

    J-STAGE 

  • Modal-Physical Hybrid System Identification of High-rise Building via Subspace and Inverse-Mode Methods

    Fujita Kohei , Fujimori Yuhei , Takewaki Izuru

    … An empirical equation of floor rotation angles is proposed by investigating those for various building models. … From the viewpoint of application of the present SI method to practical situations, a non-simultaneous measurement system is also proposed. …

    Frontiers in Built Environment (3), 2017-08-22

    IR 

  • DEVELOPMENT OF HEAT PUMP MODEL BASED ON OUTLET TEMPERATURE OF HEAT MEDIUM  [in Japanese]

    TOGASHI Eisuke

    … Therefore, many of the previous characteristic models also calculate energy consumption with using these elements. … The temperature related to the condensing or evaporating temperature is not the inlet temperature but the outlet temperature of the heating medium to be sent to the heat pump, but most of the previous models use the inlet temperature to avoid iterative calculation. …

    Journal of Environmental Engineering (Transactions of AIJ) 82(735), 453-461, 2017

    J-STAGE 

  • A New Approach to Identification and Estimation of Simultaneous Equation Models  [in Japanese]

    姜 興起 , 野田 英雄

    Information : an international Interdisciplinary journal 19(6), 1793-1812, 2016-06

  • Optimal Design of Double-Mass Dynamic Vibration Absorbers Arranged in Series or in Parallel  [in Japanese]

    ASAMI Toshihiko , NISHIHARA Osamu

    … First, the analytical models of vibratory systems with double-mass DVAs were considered, and seven dimensionless parameters were defined. … For a double-mass DVA arranged in parallel (parallel-type DVA), all five parameters were found to have nonzero optimal values, and these values were obtained numerically by solving simultaneous algebraic equation for each of the optimization criteria. …

    The Proceedings of the Dynamics & Design Conference 2016(0), 226, 2016

    J-STAGE 

  • Optimization of Microwave-assisted Ethanol Reflux Extraction Process of Flavonoids and Saponins Simultaneously from Radix Astragali Using Response Surface Methodology

    Zhong Ling , Zhang Yuefei , Chi Ruan , Yu Junxia

    … <p>The simultaneous microwave-assisted ethanol reflux extraction of flavonoids and saponins from <i>Astragalus</i> … Response surface methodology (RSM) was used to develop predictive models for simulation and optimization of the extraction process. … Based on the single factor test, the multivariate regression equation was obtained by the RSM of five-factors and five-levels, which designed from the Central Composite Circumscribed Design program. …

    Food Science and Technology Research 22(6), 759-770, 2016

    J-STAGE 

  • Simultaneous ion and neutral evaporation in aqueous nanodrops: Experiment, theory, and molecular dynamics simulations

    Higashi Hidenori , Tokumi Takuya , Hogan Christopher J. Jr. , Suda Horoshi , Seto Takafumi , Otani Yoshio

    … We use a combination of tandem ion mobility spectrometry (IMS-IMS, with differential mobility analyzers), molecular dynamics (MD) simulations, and analytical models to examine both neutral solvent (H2O) and ion (solvated Na+) evaporation from aqueous sodium chloride nanodrops. …

    Physical Chemistry Chemical Physics 17(24), 15746-15755, 2015-06-28

    IR 

  • Business as Objects of Statistical Sciences?  [in Japanese]

    Tsubaki Hiroe

    本フォーラムは,ビジネスのアウトプットを 幾つかの入力変数で説明する入出力システムモデル,すなわち支配法則を 形成する際に必要な基本的視点を議論する.このために, 日本の財務多変量データ解析を事例として用いる.先ず, 労働生産性のような単純な比例関係に誤差が含まれる形で ビジネスの静的法則が記述されることを紹介する. 次に,その法則は適切な分類を通じて正当化されることに注意する. 更に,動的法則の …

    Ouyou toukeigaku 44(1-2), 17-30, 2015

    J-STAGE 

  • Modeling Intraindividual Variability via Dynamic Factor Analysis: Appling Multi-Groups Strategy for Modeling Simultaneously Intraindividual Variability  [in Japanese]

    Konda Hiroaki , Shimizu Kazuaki

    … Reviewing P-technique factor analysis and dynamic factor analysis (DFA) as applied to the field of psychology, the methodology of multiple-group simultaneous structural equation modeling for DFA was examined. … An invariant measurement model across six persons and structure models differed with participants were estimated at the adaptable model fit level from the multi-individual DFA. …

    Kodo Keiryogaku (The Japanese Journal of Behaviormetrics) 42(1), 69-80, 2015

    J-STAGE 

  • <b>An Algorithm for Identification of Single-Input Single-Output Linear Systems with Estimation of Variance of Input-Output Noises</b>  [in Japanese]

    Komatsu Nobuo

    … The proposed method is applied to the errors-in-variables (EIV) models. … The variances of errors is estimated by solving linear simultaneous equations derived from the difference equation of the system. …

    Transactions of the Institute of Systems, Control and Information Engineers 27(5), 216-229, 2014

    J-STAGE 

  • STRUCTURAL ANALYSIS ON FACTORS IN INSTALLING SMOKE ALARMS IN ORDINARY HOUSES:Based on a questionnaire in four cities in Ibaraki prefecture  [in Japanese]

    UMEMOTO Michitaka

    … In order to understand structure of factors in installing smoke alarms in ordinary houses, we constructed a structural equation model by simultaneous analysis of several groups to interpret and give consideration. … Investigating signs and values of the path coefficients, we found that features of the models on each city were mostly similar except for the factors of support measures by the municipal authorities. …

    Journal of Architecture and Planning (Transactions of AIJ) 79(699), 1089-1097, 2014

    J-STAGE 

  • Pandemic Simulations by MADE: A Combination of Multi-agent and Differential Equations, with Novel Influenza A(H1N1) Case

    Hirose Hideo

    … Two pandemic simulation approaches are known: the multi-agent simulation model and the differential equation model. … The multi-agent model can deal with detailed simulations under a variety of initial and boundary conditions with standard social network models; … The differential equation model can quickly deal with simulations for homogeneous populations with simultaneous ordinary differential equations and a few parameters; …

    Information 16(7), 5365-5390, 2013-07

    IR 

  • Modeling Operating Speeds on Residential Streets with a 30 km/h Speed Limit: Regression versus Neural Networks Approach

    DINH Do Duy , KOJIMA Aya , KUBOTA Hisashi

    … This paper models operating speeds on residential streets with a 30 km/h speed limit by using: (i) regression methods including Single Equation Regression (SER) and Simultaneous Equation Approach (SEA), and (ii) Neural Networks (NN) modeling technique. …

    Journal of the Eastern Asia Society for Transportation Studies 10(0), 1650-1669, 2013

    J-STAGE 

  • AN ALGORITHM FOR IMPROVING REPRESENTATIVENESS OF TRAINING DATA SETS IN HAZARD ZONATION OF DIFFERENT TYPES OF SIMULTANEOUS SLOPE FAILURES AND ITS PRACTICAL APPLICATION  [in Japanese]

    YOSHIDA Tomoya , NOZAKI Ryo , KOJIMA Hirohito

    本研究は「同時多発型・斜面崩壊危険箇所評価支援」を目的として,「教師データの再設定方法」を提案し,崩壊形態別・危険箇所の判別精度を向上させたものである.同時多発型・斜面崩壊危険箇所問題における判別精度は教師データの代表性に依存することを指摘した上で,クラスター分析を通して崩壊形態が異なる現状型教師データ(表層崩壊,深層崩壊,地すべり)をグループ化し,現状型教師データと一致する教師データを抽出・再設 …

    Journal of Japan Society of Civil Engineers, Ser. F3 (Civil Engineering Informatics) 68(2), I_19-I_30, 2012

    J-STAGE 

  • Simultaneous Measurement of the Velocity and Pressure in a Plane Jet (Estimation of Conditional Averaged Value and Diffusion Term in the Intermittent Region)  [in Japanese]

    TERASHIMA Osamu , 酒井 康彦 , NAGATA Kouji

    … The simultaneous measurement of the velocity and pressure in a plane jet has been performed by using a combined probe that consists of an X-type hot-wire probe and a static pressure probe. … Secondly, the validity of the models for a turbulent and pressure diffusion term is investigated. …

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 78(787), 553-565, 2012

    J-STAGE 

  • Analysis of the Prefectural Food Self-sufficiency Rates and Agricultural Production Structure in Japan  [in Japanese]

    YAMAGUCHI Mitoshi , NAKAGAWA Masatsugu , KINUGASA Tomoko

    本稿では、本間〔20〕や速水〔16〕が農業保護分析で用いた変数を参考に、都道府県の食料自給率の決定要因について、変数間の相互依存関係を考慮し(先行研究として、米国農務省のGrainモデル(USDA〔4〕)やGolモデル(USDA〔5〕)等を参照に作成した)、10内生変数と10外生変数の相互依存性を考慮して、同時方程式を用いて計量的に分析することにする.

    Journal of Rural Problems 46(3), 313-324, 2010-12-25

    J-STAGE  JASI  References (23)

  • How to make students creative? (3) : Discrete approximation of analog models  [in Japanese]

    MIYATA Takatomi , MIYATA Masachika

    コンピュータを利用した教育では,微分方程式を差分方程式で近似することが必要になる.通常,近似誤差は差分をテイラー展開したときの高次の項の切捨てで説明されるが,高次の近似が必ずしも低次の近似より好ましいとはいえない場合が存在する.本稿では,時間発展を記述する常微分方程式に対して,厳密解と比較できる簡単な具体例を用いて,因果性に基づく前進差分と後退差分の組み合わせによって良好な近似が得られることを示し …

    IEICE technical report 110(312), 89-92, 2010-11-19

    References (4)

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