Search Results - "Ichimura, Tsuyoshi"

Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake by Agata, Ryoichiro, Barbot, Sylvain D., Fujita, Kohei, Hyodo, Mamoru, Iinuma, Takeshi, Nakata, Ryoko, Ichimura, Tsuyoshi, Hori, Takane

“…The deformation transient following large subduction zone earthquakes is thought to originate from the interaction of viscoelastic flow in the asthenospheric…”
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High-fidelity elastic Green’s functions for subduction zone models consistent with the global standard geodetic reference system by Hori, Takane, Agata, Ryoichiro, Ichimura, Tsuyoshi, Fujita, Kohei, Yamaguchi, Takuma, Iinuma, Takeshi

“…Green’s functions (GFs) for elastic deformation due to unit slip on the fault plane comprise an essential tool for estimating earthquake rupture and…”
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Detectability of low-viscosity zone along lithosphere–asthenosphere boundary beneath the Nankai Trough, Japan, based on high-fidelity viscoelastic simulation by Murakami, Sota, Hashima, Akinori, Iinuma, Takeshi, Fujita, Kohei, Ichimura, Tsuyoshi, Hori, Takane

“…After the 2011 Tohoku-oki earthquake, a seafloor observation system observed rapid landward deformation. These seafloor observation data are potentially…”
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Stress change in southwest Japan due to the 1944–1946 Nankai megathrust rupture sequence based on a 3-D heterogeneous rheological model by Hashima, Akinori, Hori, Takane, Iinuma, Takeshi, Murakami, Sota, Fujita, Kohei, Ichimura, Tsuyoshi

“…The Nankai trough has repeatedly experienced large megathrust earthquakes at intervals of 100–200 years. The inland region of southwest (SW) Japan has a…”
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High-Performance Computing Implementations of Agent-Based Economic Models for Realizing 1:1 Scale Simulations of Large Economies by Gill, Amit, Lalith, Madegedara, Poledna, Sebastian, Hori, Muneo, Fujita, Kohei, Ichimura, Tsuyoshi

“…We present a scalable high-performance computing implementation of an agent-based economic model using distributed + shared-memory hybrid parallelization…”
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Development of regional simulation of seismic ground‐motion and induced liquefaction enhanced by GPU computing by Kusakabe, Ryota, Fujita, Kohei, Ichimura, Tsuyoshi, Yamaguchi, Takuma, Hori, Muneo, Wijerathne, Lalith

“…Much research has been conducted for physics‐based ground‐motion simulation to reproduce seismic response of soil and structures precisely and to mitigate…”
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Correction to: High-fidelity elastic Green’s functions for subduction zone models consistent with the global standard geodetic reference system by Hori, Takane, Agata, Ryoichiro, Ichimura, Tsuyoshi, Fujita, Kohei, Yamaguchi, Takuma, Iinuma, Takeshi

“…An amendment to this paper has been published and can be accessed via the original article…”
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Correction: High-fidelity elastic Green’s functions for subduction zone models consistent with the global standard geodetic reference system by Hori, Takane, Agata, Ryoichiro, Ichimura, Tsuyoshi, Fujita, Kohei, Yamaguchi, Takuma, Iinuma, Takeshi

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An elastic/viscoelastic finite element analysis method for crustal deformation using a 3-D island-scale high-fidelity model by Ichimura, Tsuyoshi, Agata, Ryoichiro, Hori, Takane, Hirahara, Kazuro, Hashimoto, Chihiro, Hori, Muneo, Fukahata, Yukitoshi

“…As a result of the accumulation of high-resolution observation data, 3-D high-fidelity crustal structure data for large domains are becoming available…”
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An adjoint-based simultaneous estimation method of the asthenosphere's viscosity and afterslip using a fast and scalable finite-element adjoint solver by Agata, Ryoichiro, Ichimura, Tsuyoshi, Hori, Takane, Hirahara, Kazuro, Hashimoto, Chihiro, Hori, Muneo

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A finite element analysis method for simulating seismic soil liquefaction based on a large-scale 3D soil structure model by Kusakabe, Ryota, Ichimura, Tsuyoshi, Fujita, Kohei, Hori, Muneo, Wijerathne, Lalith

“…The increasing volume of spatial data and advancement of computer/computational science raises the possibility of using large-scale three-dimensional (3D) soil…”
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Detectability analysis of interplate fault slips in the Nankai subduction thrust using seafloor observation instruments by Agata, Ryoichiro, Hori, Takane, Ariyoshi, Keisuke, Ichimura, Tsuyoshi

“…To help the decision making regarding where to locate new observation instruments on the seafloor, we examined the detectability of interplate earthquakes and…”
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Calculation of cross-correlation function accelerated by TensorFloat-32 Tensor Core operations on NVIDIA’s Ampere and Hopper GPUs by Fujita, Kohei, Yamaguchi, Takuma, Kikuchi, Yuma, Ichimura, Tsuyoshi, Hori, Muneo, Maddegedara, Lalith

“…The cross-correlation function appears in many fields with time-series data, and speeding up the computation is essential given that the availability of…”
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A point-estimate based method for soil amplification estimation using high resolution model under uncertainty of stratum boundary geometry by Iiyama, Kahori, Yoshiyuki, Atsushi, Fujita, Kohei, Ichimura, Tsuyoshi, Morikawa, Hitoshi, Hori, Muneo

“…This study provides a practical technique for stochastically estimating soil amplification under uncertainty of the geometry of stratum boundary. To evaluate…”
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Impact of Ambiguity of Physical Properties of Three-Dimensional Crustal Structure Model on Coseismic Slip and Interseismic Slip Deficit in the Nankai Trough Region by Murakami, Sota, Ichimura, Tsuyoshi, Fujita, Kohei, Hori, Takane, Ohta, Yusaku

“…Since huge earthquakes are expected along plate subduction zones such as the Japan Trench and Nankai Trough, the estimation of coseismic slip and interseismic…”
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A Non-Signalized Junction Model for Agent-Based Simulations of Car–Pedestrian Mode Mass Evacuations by Lalith, Maddegedara, Petprakob, Wasuwat, Hori, Muneo, Ichimura, Tsuyoshi, Fujita, Kohei

“…During major disasters, such as a subduction earthquake and the associated tsunami, combinations of uncommon conditions such as non-functioning traffic…”
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Current state of integrated earthquake simulation for earthquake hazard and disaster by Hori, Muneo, Ichimura, Tsuyoshi

“…This paper presents the current state of integrated simulation for earthquake hazard and disaster. This simulation takes advantage of the macro–micro analysis…”
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High-fidelity nonlinear low-order unstructured implicit finite-element seismic simulation of important structures by accelerated element-by-element method by Fujita, Kohei, Koyama, Kentaro, Minami, Kazuo, Inoue, Hikaru, Nishizawa, Seiya, Tsuji, Miwako, Nishiki, Tatsuo, Ichimura, Tsuyoshi, Hori, Muneo, Maddegedara, Lalith

“…•Conducted high-fidelity seismic simulations of important structures by nonlinear unstructured low-order implicit finite-element method.•Acceleration of a…”
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Fast numerical simulation of crustal deformation using a three-dimensional high-fidelity model by Ichimura, Tsuyoshi, Agata, Ryoichiro, Hori, Takane, Hirahara, Kazuro, Hori, Muneo

“…The accumulation of observational data at high resolution has increased the demand for numerical simulation of crustal deformation using 3-D high-fidelity…”
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Sensitivity Analysis for Seafloor Geodetic Constraints on Coseismic Slip and Interseismic Slip-Deficit Distributions by Murakami, Sota, Ichimura, Tsuyoshi, Fujita, Kohei, Hori, Takane, Ohta, Yusaku

“…Estimating the coseismic slip distribution and interseismic slip-deficit distribution play an important role in understanding the mechanism of massive…”
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