学位

• ()

経歴

学歴

受賞

その他

• JUSST Independent Study Project Niklas Duong

論文

• A force–displacement relation based on the JKR theory for DEM simulations of adhesive particles [DOI]
• The Good, the Bad and the Ugly: droplet recognition by a “shootout”-heuristics
• Grid-algorithm improvements for dense suspensions of discrete element particles in finite element fluid simulations
• Experimental study of particle shape dependence of avalanches inside a rotating drum
• Implementation of numerically exact Coulomb friction for discrete element simulations in three dimensions
• Towards a Micromechanical Understanding of Landslides - Aiming at a Combination of Finite and Discrete Elements with Minimal Number of Degrees of Freedom [DOI]
• Some basic ideas on friction
• Implementation of Static Friction for Many-Body Problems in Two Dimensions
• Comparing numerically exact and modelled static friction [DOI]
• Stress-Strain diagrams for non-convex particles [DOI]
• The Effect of the Shape of Granular Particles on Density
• Synergies from using Higher Order Symplectic Decompositions Both for Ordinary Differential Equations and Quantum Monte Carlo Methods [DOI] [Web of Scientce]
• OPTIMIZATION AND OPENMP PARALLELIZATION OF A DISCRETE ELEMENT CODE FOR CONVEX POLYHEDRA ON MULTI-CORE MACHINES [DOI] [Web of Scientce]
• Granular acoustics of polyhedral particles [DOI]
• Polygonal Particles in Fluids [DOI] [Web of Scientce]
• Effect of the surrounding fluid on the compaction of granular materials by tapping: Slow dynamics made slower? [DOI] [Web of Scientce]
• Simulating Free Boundaries in 2D FEM Flow-Simulation with Direct Time Integration of the Surface Velocities
• Effect of the surrounding fluid on the compaction of granular materials by tapping: Slow dynamics made slower? [DOI] [Web of Scientce]
• The Fermionic Minus-Sign Problem for the Ground State, Revisited with Higher Order Suzuki–Trotter Decompositions [DOI] [Web of Scientce]
• Study of quasi two dimensional granular heaps
• Two-dimensional microscopic simulation of granular particles in fluid
• Adaptive Mesh Generation for Two-Dimensional Simulation of Polygonal Particles in Fluid
• Numerical irreversibility in energy-conserving many particle systems
• Discrete Element Simulation for Polyhedral Granular Particles
• Static Friction, Differential Algebraic Systems and Numerical Stability [DOI] [Web of Scientce]
• Jian Chen, Lisa Watanabe, Hans-Georg Matuttis¤ and Hide Sakaguchi
• History Dependence Of The Density Distribution On Granular Heaps [Web of Scientce]
• Simulation Of Polygonal Grains In A Finite-Element-Fluid [Web of Scientce]
• Random-walk type model with fat tails for financial markets [Web of Scientce]
• Acoustic of sound propagation in granular materials in one, two, and three dimensions [DOI] [Web of Scientce]
• Numerical Solution of Ordinary Differential Equations for Modeling in Socio-Econo-Physics
• Simulation of the dependence of the Bulk-Stress-Strain Relations of Granular Materials on the Particle Shape
• Strategies for an optimized simulation of granular particles in a Newtonian Fluid, Part 1: Basics [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link] [Othres link]
• Strategies for an optimized simulation of granular particles in a Newtonian Fluid, Part 2: Numerical algorithms [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link] [Othres link]
• 複雑粒体中における音響伝播の異方性
• 複雑流体としての粉粒体：３次元相互作用のモデリングの提唱
• 二次元粉粒体中における応力伝播の測定 [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link]
• 次元および２次元における粉粒体中の音響伝播シミュレーション
• Multicanonical simulations of the tails of the order-parameter distribution of the two-dimensional Ising model [DOI] [Web of Scientce]
• Nonexistence of d-wave-superconductivity in the quantum Monte Carlo simulation of the Hubbard model [Web of Scientce]
• Structure formation in a binary monolayer of dipolar particles [DOI] [Web of Scientce]
• Simple stochastic modeling for fat tails in financial markets
• Angle of repose for two-dimensional particle aggregates from particle-size and -shape
• Shape segregation in granular materials: A game of Go where shape beats size and buoyancy
• Density and size segregation in deposits of pyroclastic flow [DOI] [Web of Scientce]
• Numerical implementation of Coulomb Friction in Mechanical Systems [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link] [Othres link] [Othres link] [Othres link]
• Vibration-induced compaction in elongated vessels
• Multicanonical Monte Carlo study and analysis of tails for the order-parameter distribution of the two-dimensional Ising model [DOI] [Web of Scientce]
• Modeling Friction in Granular Materials
• Non-equilibrium analysis of the antiferromagnetic ordering in the half-filled Hubbard model in two dimensions [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link] [Othres link] [Othres link] [Othres link]
• Shape segregation for bidisperse mixtures of ellipses in two dimensions [Web of Scientce]
• Outline for a simulation method for volcanic eruptions using DEM
• Effect of particle shape on bulk-stress-strain relations of granular materials [CiNii Research (CiNii Articles)] [CiNii Books] [Othres link] [Othres link]
• Quantum computing simulation using the auxiliary field decomposition [Web of Scientce]
• Auxiliary field methods for the simulation of quantum computation circuits [Web of Scientce]
• Quantum-statistical simulations for quantum circuits [Web of Scientce]
• Advances in the investigation of the minus sign problem for the fermionic case [Web of Scientce]
• Particle simulation of cohesive granular materials [Web of Scientce]
• Some findings on the minus-sign problem for the Hubbard model in the projector quantum Monte Carlo method [Web of Scientce]
• Rotational dynamics of magnetic particles in suspensions [Web of Scientce]
• Fractal space, cosmic strings and spontaneous symmetry breaking [Web of Scientce]
• History-dependent structure in granular piles [Web of Scientce]
• Vectorizable overlap computation for ellipse-based discrete element method [Web of Scientce]
• Behandlung des Schotters als Vielkoerpersystem mit wechselnden Bindungen
• Discrete element simulations of dense packings and heaps made of spherical and non-spherical particles [Web of Scientce]
• Molecular dynamics simulation of cohesive granular materials [Web of Scientce]
• Towards a micromechanic understanding of the pressure distribution under heaps
• Influence of the geometry on the pressure distribution of granular heaps
• The effect of particle shape and friction on the stresses in heaps of granular media in Friction
• The effect of interaction laws on the stresses in frictionless granular media
• Simulation of the pressure distribution under a two dimensional heap of polygonal particles [CiNii Research (CiNii Articles)] [CiNii Books]
• Quantum Monte Carlo evidence for d-wave pairing in the two-dimensional Hubbard model at a van Hove singularity [Web of Scientce]
• From BCS-like superconductivity to condensation of local pairs: A numerical study of the attractive Hubbard model [Web of Scientce]
• DENSITY-OF-STATES IN THE T'-HUBBARD MODEL - EXACT DIAGONALIZATION RESULTS [Web of Scientce]
• EFFICIENT PARALLELIZATION OF THE 2D SWENDSEN-WANG ALGORITHM [Web of Scientce]
• 3D ISING-MODEL WITH SWENDSEN-WANG DYNAMICS - A PARALLEL APPROACH [Web of Scientce]
• SPIN-SPIN CORRELATIONS IN THE TT'-HUBBARD MODEL [Web of Scientce]
• EXPERIENCES WITH REENGINEERING AND PARALLELIZING A HIGH-T(C) SUPERCONDUCTIVITY CODE [Web of Scientce]
• Virtuelle Parallelrechner
• Numerical simulations of models for high-Tc superconductors
• NUMERICAL-SIMULATION OF HIGH-TEMPERATURE SUPERCONDUCTORS [Web of Scientce]
• PARALLELIZATION OF THE 2D SWENDSEN-WANG ALGORITHM [Web of Scientce]
• DOUBLE-LAYER HUBBARD-MODEL - OFF-DIAGONAL LONG-RANGE ORDER IN THE NODELESS D-WAVE CHANNEL [Web of Scientce]
• QUANTUM MONTE-CARLO SIMULATIONS OF THE APEX-OXYGEN-MODEL [Web of Scientce]
• NUMERICAL-SIMULATION OF THE DOUBLE-LAYER HUBBARD-MODEL [Web of Scientce]

その他業績

• Deutsche Forscher Betreuen Deutsche Studierende
• Wissenschaftlicher Gesprächskreis am 20.5.2015 im DAAD Büro Tōkyō
• Understanding the Discrete Element Method: Simulation of Non-Spherical Particles for Granular and Multi-body Systems [DOI]
• 28aAJ-5 粒子-流体混合系のレオロジー(28aAJ 圧縮性流体・希薄流体,複雑流体,電磁流体,熱流体,領域11(物性基礎論・統計力学・流体物理・応用数学・社会経済物理)) [CiNii Research (CiNii Articles)] [CiNii Books]

講演・口頭発表等

• Stabilization of static friction in constraint mechanics
• Micromechanic simulation of two-dimensional barchan dunes
• Dimensionality effects in granulates under biaxial compression
• Simulation of underwater barchans with a combined Finite Element and Discrete Element Method
• Adaptive remeshing for a finite element simulation with discrete elements
• Tree Code Based Neighborhood Algorithms for DEM
• Discrete Element Simulations from two-dimensions with polygons to three dimensions with rods
• Numerical stabilization for the constraint formulation of many-body-many-contact Coulomb friction
• Avalanching of variously shaped DEM particles in a rotating drum
• Development of a Plate Discrete Element Method: Geometry and Kinematics
• The Good, the Bad and the Ugly: droplet recognition by a “shootout”-heuristics
• Implementation of numerically exact Coulomb friction for discrete element simulations in three dimensions
• Grid-algorithm improvements for dense suspensions of discrete element particles in finite element fluid simulations
• Experimental study of particle shape dependence of avalanches inside a rotating drum
• 連続的に変化する有限要素メッシュによる 精度と性能の向上
• On the origin of modern physics in the -dark- middle ages
• 漏斗内部の粉体の流れと詰まりのシミュレーション
• 加振による液状化現象下における微小粒子間の流れのシミュレーション
• 粘性摩擦の働く平面上を転がり運動する楕円体のシミュレーションと実験
• グレイディッドメッシュを用いた流体中の粒子の 堆積に関する FEM シミュレーション
• 多粒子を含む流体シミュレーションの為の P2P1 有限要素への 3 次バブルの導入
• 連続的に変化する有限要素メッシュによる 精度と性能の向上
• 非球型DEM粒子の回転の減衰
• Alternative Hubbard-Stratonovich Transformations and the Minus Sign Problem
• Numerically exact formulation for Many-Body Coulomb friction
• Stress-Strain diagrams for non-convex particles
• Unrecognized type of instability in combined Discrete-Element- Finite-Element methods [Othres link]
• Computation of effective viscosities in Couette-flow with combined particle-fluid simulation
• Size seggregation in fluid-particle mixtures
• A Discrete Element Method of Non-Convex polygons
• 流体中におけるサイズの異なる粒子の分離の二次元シミュレーション
• Rheology of Fluid-Particle mixtures
• Coulomb-friction, Differential algebraic systems and the Painleve paradox
• "Numerically Exact Friction Implementation for Two-dimensional Particle Systems"
• Convergence for the groundstate auxiliary field method
• Rheology of Fluid-Particle Mixtures
• Simulation results for spinning tops with a particular distribution of mass and shape [Othres link]
• Bulk material strength of polyhedral assemblies
• Numerically exact friction implementation for two-dimensional particle systems
• Thoughts on sampling distributions with “negative probabilities” and the fermionic sign problem
• 形状効果による粒状集合の充填密度
• 地滑りのための微視的なメカニカ ル解析
• 離散要素法を用いた周囲の粒子による基礎の減衰
• Shape effects on the density of granular assemblies [Othres link]
• Synergies from using higher order symplectic decompositions both for ordinary differential equations and quantum Monte Carlo methods
• Synergies from using higher order symplectic decompositions both for ordinary differential equations and quantum Monte Carlo methods [Othres link]
• 離散要素法を用いた周囲の粒子による基礎の減衰 [Othres link]
• The FermionicMinus-SignProblem: Newperceptions from higher-order Suzuki-Trotter decompositionmethods
• Rheology of Fluid-Particle Mixtures
• From polyhedra to spheres: The e ffect of shape on the density
• Polygonal Particles in Fluids
• Granular Acoustics of Polyhedral Particles
• Formation of Granular Heaps in Fluids
• Adverse Effects on the Accuracy for “Sampling with Sign” in the Hubbard System
• Effect of the surrounding fluid on the compaction of granular materials by tapping: Slow dynamics made slowe
• Incompressible Fluid Simulation with Granular Particles with Adaptive Grid and Adaptive Stepsize
• 多面体を用いて三次元離散要素法の並列化
• Combination of Discrete and Finite Elements for the microscopic simulation of particle-loaded flows
• Sedimentation of two-dimensional polygonal DEM-particles in an incompressible FEM-fluid
• Shi Han Ng, Hans-Georg Matuttis
• 有限要素法による粘弾性円盤と外壁の接触問題の研究
• 準二次元の粒状堆積丘に関する研究
• Simulation of Flow Problems with Free Boundaries in 2D using the Finite Element Method
• Adaptive Mesh Generation for two-dimensional Simulation of Polygonal Particles in Fluid
• 59th Japan national congress for theoretical and applied mechanics
• Theoretical and applied mechanics Japan
• Numerical irreversibility in many particle systems
• Discrete element simulation for polyhedral granular particles
• History Dependence of the Density Distribution on Granular Heaps
• Simulation of Polygonal Grains in a Finite-Element-Fluid
• 二次元粉粒体中における応力分布の測定及びシミュレーション
• 離散要素法による回転運動する楕円扁球の数値シミュレーホン
• ニュトン流体中の粒子シミュレーション
• Preliminaries for the Implementation of a simulation of polygonal particles in an incompressible Newtonian Fluid
• Strategies for an optimized simulation of granular particles in an incompressible Newtonian Fluid
• 京都大学数理解析研究所講究緑1472

書籍等出版物

• Understanding the Discrete Element Method: Simulation of Non-Spherical Particles for Granular and Multi-body Systems
• Quantum Monte Carlo Investigations for the Hubbard Model

作品等

共同研究・競争的資金等の研究課題

メディア報道

産業財産権

所属学協会

• Deutsche Physikalische Gesellschaft
• 日本物理学会
• 日本流体力学会
• Humboldt-Foundation Japan East
• JSPS-Club (Federation of the German former Alumni of the JSPS-Scholarship scheme)

委員歴

担当経験のある科目

• Phenomenology of Friction
• Phenomenology of Friction
• インターンシップ（海外）（Ｍ, 類III）
• インターンシップ（海外）（Ｍ, 類III）
• 研究室見学 (Current Topics in Fundamental Science and Engineering A)
• 研究室見学 (Current Topics in Fundamental Science and Engineering A)
• 総合コミュニケーション科学
• 総合コミュニケーション科学
• "Special Lecture on Informatics and Engineering A"
• "Special Lecture on Informatics and Engineering A"
• Introduction to Computational MEthods in Science and Engineering
• Introduction to Computational MEthods in Science and Engineering
• Internship (M, KaigaiM)
• Internship (M, KaigaiM)
• Nihon Gijutsu Kagaku B
• Nihon Gijutsu Kagaku B
• Graduate Technical English
• Graduate Technical English
• Butsurigaku Enshuu 1I
• Butsurigaku Enshuu 1I
• Butsurigaku Enshuu 1
• Butsurigaku Enshuu 1
• Special Lecture on Information and Engineering A (Curretn Topics in Fundamental Science and Engineering A)
• Special Lecture on Information and Engineering A (Curretn Topics in Fundamental Science and Engineering A)
• インターンシップ（Ｍ, 類III）、インターンシップ（海外）（Ｍ, 類III））
• インターンシップ（Ｍ, 類III）、インターンシップ（海外）（Ｍ, 類III））
• Introduction to computational methods  in science and engineering
• Introduction to computational methods  in science and engineering
• インターンシップ（Ｍ）、インターンシップ（海外）（Ｍ）
• インターンシップ（Ｍ）、インターンシップ（海外）（Ｍ）
• 日本御術科学B
• 大学院技術英語
• Introduction to computational methods in science and engineering
• 基礎物理学演習 I
• PBL
• PBL
• 学部インターンシップ担当
• 学部インターンシップ担当
• インターンシップ担当
• インターンシップ担当
• 力学系現象特論
• 基礎物理学演習 II
• 日本御術科学B
• 日本御術科学B
• 大学院技術英語
• 大学院技術英語
• 海外インターンシップ
• 海外インターンシップ
• インターンシップ
• インターンシップ
• 力学系現象特論
• 力学系現象特論
• 基礎物理学演習 II
• 基礎物理学演習 II
• 基礎物理学演習 I
• 基礎物理学演習 I

社会貢献活動

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