JAMSTEC > Research Institute for Value-Added-Information Generation (VAiG) > Center for Mathematical Science and Advanced Technology (MAT)

The Center for Mathematical Science and Advanced Technology (MAT) consists of scientists and engineers with a broad set of backgrounds and focuses on multi-disciplinary subjects. The topics we examine range from high performance computing, to stellar objects such as accretion disks, to marine biology related application of graph theory. Furthermore, we intend to apply our knowledge to develop preventive measures to ameliorate the negative effects of natural disasters such as earthquakes and tsunamis.

Our targets include 1) understanding mathematics and physics behind complex phenomena in earth and planetary sciences and biology, 2) develop and conduct large-scale simulation to accurately predict various natural phenomena, 3) aid in the development of advanced technology in marine- and geo-engineering, and 4) feedback of research accomplishments to community and society.

Our fundamental approach is to combine mathematical theories and high technologies to advance the field of biology, marine geology, geophysics and space sciences, thus leading to breakthrough perspectives on these important subjects. The abbreviation "MAT" is also the backronym for "Monster Attack Team", which reflects both the lighthearted side of our team, and the serious side of our work to tame nature's monsters.

Center for Mathematical Science and Advanced Technology (MAT)

- 2021/04/16
- Team of JAMSTEC researchers won championship in international data science competition WAI DATATHON 2021
- 2020/10/07
- Recruitment of Researcher (II) (DKS20-004)
- 2020/03/24
- FY2020 [Computational Science and Engineering Group] Recruitment of a Postdoctoral Researcher (DGP20-001)
- 2020/02/19
- FY2020 [Computational Science and Engineering Group] Recruitment of a Project Scientist or Project Technical Scientist DGS-015
- 2019/08/28
- Recruitment for Principal Scientist (DKS-001)
- 2019/07/23
- Dr. Ettore Barbieri’s coauthored article has been selected as the # 1 most read articles in the Chemistry and Materials Science field of Nature Communications.
- 2019/05/17
- The research results “ Terrestrial magma ocean origin of the moon ” by Dr. Natsuki Hosono and his colleagues, have been introduced on these websites.
- 2019/05/16
- FY2019 Recruitment of Project Scientist or Project Technical Scientist or Project Engineer
- 2019/02/27
- Recruitment of Project Scientist or Project Technical Scientist or Project Engineer
- 2019/01/24
- The research results “ Sweet coffee stains do not leave rings: Control and mechanism of patterns left by particle-laden droplets after adding sugar ” by Dr. Shunsuke F. Shimobayashi and his colleagues, has been introduced on these websites.
- 2019/01/23
- FY2019 Recruitment of Postdoctoral Researcher
- 2018/12/25
- JAMSTEC's practices for SDGs: Construction and preservation of resilient submarine infrastructure (MAT)
- 2018/12/18
- Sweet coffee stains do not leave rings:

Control and mechanism of patterns left by particle-laden droplets after adding sugar - 2018/10/18
- We made MAT pamphlet
- 2018/09/03
- FY2018 Recruitment of Project Scientist or Project Technical Scientist or Project Engineer
- 2018/08/28
- FY2019 Recruitment of Senior Scientist or Senior Technical Scientist
- 2018/06/11
- ”Plasma Flow Simulation” was published on Image of the Week
- 2018/06/08
- Real-scale numerical sandbox experiments suggest arcuate stress structure in accretionary prisms
- 2018/06/01
- Scientists develop material that could regenerate dental enamel -

JAMSTEC scientist in MAT co-author of paper appeared in Nature Communications

- 2021/04/21
- MAT Seminar "Laser spectroscopic techniques for in-situ chemical measurements of solids in the deep-sea environment"
- 2021/03/31
- MAT Seminar "Long-term monitoring of pressure and temperature of hydrothermal fluid using deep-sea artificial hydrothermal vent and Kuroko-ore cultivation apparatus"
- 2021/03/24
- MAT Seminar "My research life in MAT"
- 2021/02/24
- MAT Seminar "The concept of intermediate asymptotics and a dynamical impact of solid sphere onto the PDMS militextured surface"
- 2021/02/17
- MAT Seminar "Application of deep-learning at JAMSTEC"
- 2021/01/20
- MAT Seminar "1. What is biogeochemistry?

2. Mechanical stress of hydrogel by squeezing or absorbing water" - 2021/01/13
- MAT Seminar "Malaria prediction efforts at the application laboratory"
- 2020/11/18
- MAT Seminar "Development of a bio-inspired underwater robot and an eel migration route optimization algorithm"
- 2020/11/11
- MAT Seminar "A General Formula for Large Deformation Peeling? An update"
- 2020/11/04
- MAT Seminar "Oxygen isotope systematics of chondrules: Evidence for outward migration of sub-millimeter particles in the protoplanetary disk."
- 2020/10/28
- MAT Seminar "Numerical and theoretical studies of particle flow in the gas flow around a turbine blade"
- 2020/10/21
- MAT Seminar "Transparent granular suspension and its applications"
- 2020/10/14
- MAT Seminar "Rheological simulation of water-grain suspensions"
- 2020/10/07
- MAT Seminar "Improvement of parallel domain decomposition of DEPTH toward numerical analysis repository"
- 2020/09/30
- MAT Seminar "Geometric discretization of electromagnetics and numerical analysis of dielectric breakdown"
- 2020/09/16
- MAT Seminar "Overpressure and pressure oscillations near faults triggered by tectonic nappe formation: insight from a numerical sandbox experiment

A. Bauville, P. Yamato, and S. M. Schmalholz" - 2020/09/09
- MAT Seminar "Improving the accuracy of two-fluid sub-grid modeling of dense gas-solid fluidized flows"
- 2020/09/02
- MAT Seminar "A parametric study of soil mixing under water based on discrete element simulations: geometric and operational factors"
- 2020/08/26
- MAT Seminar "Two-dimensional numerical experiments on thermal convection of highly compressible fluids with variable viscosity and thermal conductivity: Implications for mantle convection of super-Earths"
- 2020/08/19
- MAT Seminar "Development of a system to monitor and forecast earthquake preparation and generation processes in subduction zone"
- 2020/08/05
- MAT Seminar "My plan for studies of geodynamo"
- 2020/07/29
- MAT Seminar "Development of a public code for calculating opacities of multi-species gas mixture"
- 2020/07/22
- MAT Seminar "All-speed and divergence-free scheme for accurate and robust MHD simulations"
- 2020/07/08
- MAT Seminar "Reconstruction of database system of research vessel operating state information"
- 2020/07/01
- MAT Seminar "Wandering of columnar vortices in rotating Rayleigh-Benard convection"
- 2020/06/24
- MAT Seminar "Phase reduction approach to synchronization of periodic fluid flows:

From Rayleigh-Benard convection to Karman vortex street" - 2020/06/17
- MAT Seminar "Bayesian inference for fault slip distributions based on ensemble modeling of the uncertainty of Green’s function"
- 2020/06/10
- MAT Seminar "Numerical analysis for crack pattern formation"
- 2020/06/03
- MAT Seminar "Short self introduction and some comments on plasticity theory"
- 2020/03/25
- MAT Seminar "Looking for good coordinate system"
- 2020/03/12
- MAT Seminar "Nucleation energy landscape of membrane-less organelles"
- 2020/03/11
- MAT Seminar "Novel Mathematical and physical models reveal mechanisms behind complex phenomena in biology"
- 2020/03/04
- MAT Seminar "Formation and Disruption of Conductive Networks in Pyroresistive Polymer Composites"
- 2020/02/26
- MAT Seminar "Transversal Oscillation of an air-blasted liquid sheet"
- 2020/02/12
- MAT Seminar "Direct observation of flash temperature at frictional interface of synthetic quartz crystal during high-velocity sliding"
- 2020/02/05
- MAT Seminar "Smoothed Particle Hydrodynamics simulations on FP16"
- 2020/01/08
- MAT Seminar "Interaction Mechanisms Quantified from Empirical Data (A Case Study on Frog Choruses)"
- 2019/12/04
- MAT Seminar "Simulating yield response with the Discrete Element Method (DEM) in the numerical slump flow experiment"
- 2019/11/27
- MAT Seminar "Effects of inter particle friction on the meso-scale hydrodynamics of dense gas-solid fluidized flows"
- 2019/11/20
- MAT Seminar "Discrete element simulation of a (drilling-and-) mixing process"
- 2019/11/13
- MAT Seminar "A comprehensive study of pressure-to-depth conversion models for (ultra-)high-pressure metamorphic rocks"
- 2019/10/30
- MAT Seminar "Trial to revise governing equations of earthquake generation cycle simulations, II"
- 2019/10/23
- MAT Seminar "Brief overview of line broadening calculations"
- 2019/10/16
- MAT Seminar "Synchronization of megathrust earthquakes to periodic slow slip events in a single-degree-of-freedom spring-slider model"
- 2019/10/09
- MAT Seminar "Folds “a priori”"
- 2019/10/02
- MAT Seminar "Improving numerical method for shock waves in magnetized gas"
- 2019/09/25
- MAT Seminar "Half-metallic antiferromagnets and their possible device applications"
- 2019/09/11
- MAT Seminar "Bayesian inference of model parameters governing subduction zone dynamics"
- 2019/09/04
- MAT Seminar "Metachronal waves in nonlocally coupled oscillators"
- 2019/08/28
- MAT Seminar "Introduction of covariance components in slip inversion of land and seafloor geodetic data and application to slip deficit rate estimation in the Nankai Trough subduction zone"
- 2019/08/21
- MAT Seminar "Most suitable coordinate system for numerical analysis of wave equation"
- 2019/08/07
- MAT Seminar "A wavelet-based data compression method for three-dimensional numerical simulations on regular grids"
- 2019/07/31
- MAT Seminar "New understanding on the optimising strategies in fish swimming from CFD and engineering perspectives"
- 2019/07/24
- MAT Seminar "A Numerical Method for the Mechanics of Folds in Plates"
- 2019/07/17
- MAT Seminar "3D numerical modelling of nappe emplacement during orogenic wedge formation"
- 2019/07/10
- MAT Seminar "Super-Resolution Simulation for Real-Time Prediction of Urban Micrometeorology"
- 2019/07/03
- MAT Seminar "Mechanism of Liquid Sheet Atomization Induced by Air Flow"
- 2019/06/26
- MAT Seminar "Evolution of size and shape distributions of comminuted particles under shear deformation"
- 2019/06/19
- MAT Seminar "SPH Simulations on AI-specific processors"
- 2019/06/12
- MAT Seminar "Sedimentation process of experimentally produced turbidity current"
- 2019/06/05
- MAT Seminar "Discrimination of seismic signals from earthquakes and tectonic tremor by applying a convolutional neural network to running spectral images (SRSpec-CNN)"
- 2019/05/22
- MAT Seminar "SPH simulation of wave channel -Wave impact edition featuring Davide-"
- 2019/05/15
- MAT Seminar "Experiments of horizontal convection"
- 2019/05/08
- MAT Seminar "Progress of numerical modeling of the riser pipe flow for slurry transportation"
- 2019/04/24
- MAT Seminar "Structural change from roll to large-scale cell in turbulent thermal convection of a liquid metal layer"
- 2019/04/01
- MAT Seminar "Instability-induced Microstructure Transformations for Switchable Soft Metamaterials"
- 2019/03/19
- MAT Seminar "Mechanics of soils - discrete and continuum approaches and a trial to bridge the two approaches"
- 2019/03/12
- MAT Seminar "Trial to revise governing equations of earthquake generation cycle simulations"
- 2019/03/05
- MAT Seminar "Control of fault weakening on the structural styles of underthrusting-dominated non-cohesive tectonic wedges"
- 2019/02/26
- MAT Seminar "A divergence-free shock-capturing scheme for magnetohydrodynamics"
- 2019/02/05
- MAT Seminar "Code Development for Calculating Chemical Equilibrium of Ideal Gas Mixture and its Opacity"
- 2019/01/29
- MAT Seminar "Improvement of database system for cruise information of research vessels"
- 2019/01/22
- MAT Seminar "Phase reduction of oscillatory thermal convection with a spatially translational mode"
- 2019/01/15
- MAT Seminar "Segmentation of earthquake rupture caused by three-dimensional material heterogeneity"
- 2019/01/08
- MAT Seminar "REBEL WITH CAUSE - CORRECTION OF ELASTO-PLASTICITY THEORY"
- 2018/12/18
- MAT Seminar "On the energetics and stability of a minimal fish school"
- 2018/12/04
- MAT Seminar "Mathematical aspects of numerical simulations and its applications to industrial problems"
- 2018/11/27
- MAT Seminar "Extreme Deformations of the Elastica for non-conservative forces"
- 2018/11/06
- MAT Seminar "The performance model of smoothed particle hydrodynamics with the interaction-list-sharing method for many-core architectures"
- 2018/10/30
- MAT Seminar "Velocity structure of experimentally produced turbidity current and development of concentration profiling technique by ultrasound backscatter echo signal"
- 2018/10/23
- MAT Seminar "SPH simulation of wave channel -Revival edition featuring Davide-"
- 2018/10/16
- MAT Seminar "About dynamo simulations I want to start, and secondary convection beneath the plate"
- 2018/10/09
- MAT Seminar "Progress of stress chain analysis of large-scale DEM simulation of accretionary prism formation"
- 2018/10/02
- MAT Seminar "Extreme Hydrodynamic impact onto buildings"
- 2018/09/25
- MAT Seminar "Modeling the formation of growth layers in human teeth"
- 2018/09/11
- MAT Seminar "Structural styles of accretionary prisms with no pre-existing weak layer"
- 2018/09/04
- MAT Seminar "Machine learning-based soundscape information retrieval and its application in the acoustic remote sensing of marine ecosystems"
- 2018/08/28
- MAT Seminar "Struggle towards numerical modeling of 3-D mantle convection with magmatism and plate tectonics"
- 2018/08/21
- MAT Seminar "Phase transitions in intracellular lipid droplets"
- 2018/07/31
- MAT Seminar "Multiphase Flow Simulations by Lattice Boltzmann Method with a Block-structured AMR Method on a GPU System"
- 2018/07/24
- MAT Seminar "Progress of the project for seismic-fault drilling on Boso Peninsula -Subduction-megathrust earthquakes in the Japanese metropolitan area-"
- 2018/07/17
- MAT Seminar "Geochemical Discrimination and feature selection of magmatic tectonic settings using machine-learning-based approach"
- 2018/07/10
- MAT Seminar "Thermal imaging method for frictional interface"
- 2018/07/03
- MAT Seminar "Particle acceleration in solar flares: Current understanding and perspective"
- 2018/06/26
- MAT Seminar "Nonlinear outcome of gravitational instability in irradiated protoplanetary disks"
- 2018/06/19
- MAT Seminar "Development of software to predict downtime of future research cruises"
- 2018/06/12
- MAT Seminar "Fluid flow inside a thin, low viscosity layer on top of the slab"
- 2018/05/29
- MAT Seminar "Phase reduction approach to synchronization of rhythmic spatiotemporal patterns: From synchronization of beating flagella to metachronal waves of Paramecium"
- 2018/05/15
- MAT Seminar "Can we go Off the Grid? - at least for Plankton Ecosystem Modeling"
- 2018/05/08
- MAT Seminar "Power-law flow in asthenosphere weakened by subduction zone megathrust earthquake explains observed surface displacement"
- 2018/04/24
- MAT Seminar "Problems solved and problems unsolved"
- 2018/04/17
- MAT Seminar "Unveiling Natural Fish Swimming Mysteries and Improving Underwater Vehicle Technology"
- 2018/04/10
- MAT Seminar "More Than a Peeling - Mathematical Models for Liquid-Phase Exfoliation of Multilayer 2D Nanomaterials"