242 citations
- The University of TokyoJP33 papers
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- Rikkyo UniversityJP17 papers
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- Institute of Space and Astronautical ScienceJP13 papers
- Tohoku UniversityJP12 papers
- Tokyo Metropolitan UniversityJP12 papers
- University of MiyazakiJP12 papers
- Center for Astrophysics Harvard & SmithsonianUS11 papers
- Japan Aerospace Exploration AgencyJP11 papers
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9 papers · 1 filter
Exploratory Integration of EEG Spectral Features and Gaze Variability for Mild Cognitive Impairment Discrimination
Takeru Mukunoki, Mamoru Hiroe, Minoru Nakayama +4
Early detection of mild cognitive impairment (MCI) is an important challenge in aging societies. Electroencephalography (EEG) and eye-tracking have independently been explored as p…
Chandra X-Ray Imaging and Spatially Resolved Spectroscopy of SN 1987A: Energy-Dependent Morphology of the Equatorial Ring
Yusuke Sakai, Shinya Yamada, Koji Mori +8
We present a systematic imaging and spatially resolved spectral study of SN 1987A using Chandra observations obtained between 1999 and 2025. By combining multiepoch ACIS and HETG d…
Data-driven Initial Gap Identification of Piecewise-linear Systems using Sparse Regression and Universal Approximation Theorem
Ryosuke Kanki, Akira Saito
This paper proposes a method for identifying an initial gap in piecewise-linear systems from data. Piecewise-linear systems appear in many engineered systems such as degraded mecha…
Accurate Determination of Chemical Abundances near a Supermassive Black Hole
The XRISM collaboration
The metal abundances in galactic nuclei carry key information on the history of star formation and mass transfer in central regions of galaxies. X-ray fluorescence analysis is a un…
A Fast, Hot Wind from a Nuclear Starburst
XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137
Galaxies with intense star formation often host multiphase, galaxy-scale winds powered by supernovae and fast stellar winds. These are strong enough to disrupt the star-forming int…
Sparse stability diagrams of LSCF method via strategic pole destabilization using orthogonal matching pursuit
Shogo Shimada, Akira Saito
In various engineering fields including mechanical, aerospace, and civil engineering, the identification of modal parameters, including natural frequencies, damping ratios, and mod…