65 citations · 111 across the 12 of their papers we have counts for
12 papers
A Stochastic-Thermodynamic Constraint on the Seasonal Phase Locking of the El Niño-Southern Oscillation
Yuki Yasuda, Tsubasa Kohyama
We investigate the seasonal phase locking of the El Niño-Southern Oscillation (ENSO) in a linear stochastic recharge oscillator (SRO), a damped oscillator with additive noise and a…
Red Giant Winds Driven by Alfvén Waves with Magnetic Diffusion
Takeru K. Suzuki, Keiichi Ohnaka, Yuki Yasuda
We investigate the driving mechanism of Alfvén wave-driven stellar winds from red giant stars, Arcturus ( Boo; K1.5 III) and Aldebaran ( Tau; K5 III), with nonideal MHD simul…
A Mechanism of Stochastic Synchronization in the Climate System: an Interpretation of the Boundary Current Synchronization as a Maxwell's Demon
Yuki Yasuda, Tsubasa Kohyama
This study has applied information thermodynamics to a bivariate linear stochastic differential equation (SDE) that describes a synchronization phenomenon of sea surface temperatur…
Spatio-Temporal Super-Resolution Data Assimilation (SRDA) Utilizing Deep Neural Networks with Domain Generalization
Yuki Yasuda, Ryo Onishi
Deep learning has recently gained attention in the atmospheric and oceanic sciences for its potential to improve the accuracy of numerical simulations or to reduce computational co…
Rotationally Equivariant Super-Resolution of Velocity Fields in Two-Dimensional Fluids Using Convolutional Neural Networks
Yuki Yasuda, Ryo Onishi
This paper investigates the super-resolution (SR) of velocity fields in two-dimensional fluids from the viewpoint of rotational equivariance. SR refers to techniques that estimate…
Super-Resolution of Near-Surface Temperature Utilizing Physical Quantities for Real-Time Prediction of Urban Micrometeorology
Yuki Yasuda, Ryo Onishi, Yuichi Hirokawa +2
The present paper proposes a super-resolution (SR) model based on a convolutional neural network and applies it to the near-surface temperature in urban areas. The SR model incorpo…
Alfvén wave-driven wind from RGB and AGB stars
Y. Yasuda, T. K. Suzuki, T. Kozasa
We develop a magnetohydrodynamical model of Alfvén wave-driven wind in open magnetic flux tubes piercing the stellar surface of Red Giant Branch (RGB) and Asymptotic Giant Branch (…
A New Interpretation of Vortex-Split Sudden Stratospheric Warmings in Terms of Equilibrium Statistical Mechanics
Yuki Yasuda, Freddy Bouchet, Antoine Venaille
Vortex-split sudden stratospheric warmings (S-SSWs) are investigated by using the Japanese 55-year Reanalysis (JRA-55), a spherical barotropic quasi-geostrophic (QG) model, and equ…
Dust formation and mass loss around intermediate-mass AGB stars with initial metallicity in the early Universe I: Effect of surface opacity on the stellar evolution and dust-driven wind
Shohei Tashibu, Yuki Yasuda, Takashi Kozasa
Dust formation and resulting mass loss around Asymptotic Giant Branch (AGB) stars with initial metallicity in the range of and initial mass $2\leq…
Deformations of harmonic function germs
Yuki Yasuda
We study the classification problem of singularities of function-germs with harmonic leading terms of two variables under the right-equivalence. We observe that the multiple action…
Singularities of functions with harmonic leading terms of two variables
Yuki Yasuda
We study the classification problem of singularities of function-germs with harmonic leading terms of two variables under the right-equivalence. We study the classification in the…
Formation of SiC Grains in Pulsation-Enhanced Dust-Driven Wind Around Carbon Rich Asymptotic Giant Branch Stars
Yuki Yasuda, Takashi Kozasa
We investigate the formation of silicon carbide (SiC) grains in the framework of dust-driven wind around pulsating carbon-rich Asymptotic Giant Branch (C-rich AGB) stars in order t…