Masaru NagasoNanyang Technological University | ntu · School of Physical and Mathematical Sciences
Masaru Nagaso
Doctor of Acoustics
Development of HPC-ready numerical library for Eikonal equation based travel time adjoint state tomography.
About
7
Publications
1,086
Reads
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18
Citations
Citations since 2017
Introduction
Main developer working for the project "Centre of Excellence for Exascale in Solid Earth (ChEESE)" granted by European Commission's Horizon 2020 research program.
Specifically, I am working on,
- Optimization of a numerical code (SPECFEM3D),
- design and development of an entire workflow,
for making a large scale seismic full-wave inversion simulation on the next generation (Exascale) High Performance Computation.
Additional affiliations
July 2019 - August 2020
Position
- PostDoc Position
Description
- Main developer working for the project "Centre of Excellence for Exascale in Solid Earth (ChEESE)" granted by European Commission's Horizon 2020 research program. Specifically, I am working on, Optimization of a numerical code (SPECFEM3D), design and development of an entire workflow, for making a large scale seismic full-wave inversion simulation on the next generation (Exascale) High Performance Computation.
February 2015 - May 2018
February 2015 - May 2018
Publications
Publications (7)
The simulation of the propagation of ultrasonic waves in a moving fluid will improve the efficiency of the ultrasonic flow monitoring and that of the in-service monitoring for various reactors in several industries. The most recent simulations are mostly limited to 3D representations of the insonified volume but without really considering the tempo...
In this paper, we performed a four-dimensional numerical simulation to calculate wave propagation in a thermal fluctuating liquid metal in order to obtain detailed knowledge on a wave propagation in coolant material of a Sodium-cooled Fast reactor (SFR). The wave and the medium are described in three spatial and one temporal dimensions. We made use...
The ASTRID project, a French sodium-cooled nuclear reactor of 4th generation, is currently under development by the French Alternative Energies and Atomic Energy Center (CEA). In this project, development of monitoring techniques for a nuclear reactor in operation is identified as an important issue to improve the plant safety. The use of ultrasoni...
ASTRID project, French sodium cooled nuclear reactor of 4th generation, is under development at the moment by Alternative Energies and Atomic Energy Commission (CEA). In this project, development of monitoring techniques for a nuclear reactor during operation are identified as a measure issue for enlarging the plant safety. Use of ultrasonic measur...
high-resolution imaging method Using a 25-MHz ultrasonic acoustic profile measurement was introduced, and the inner structures of Small fish were examined without body contact. Two types of fish were as experimental targets and measured using a focused probe 3-D acoustic imaging of inner and external structure, of the fish body was then performed,...
Visualization method using ultrasonic acoustic profile measurement was introduced and inner structures of small size fishes were examined. Detection of external and internal body surface were executed. Two kinds of fishes are chosen in this experiment and measured by using 25 MHz medical probe. Then signal processing and visualization of three-dime...
