K
Kiyoshi Takamasu
Researcher at University of Tokyo
Publications - 260
Citations - 2058
Kiyoshi Takamasu is an academic researcher from University of Tokyo. The author has contributed to research in topics: Interferometry & Metrology. The author has an hindex of 20, co-authored 258 publications receiving 1905 citations. Previous affiliations of Kiyoshi Takamasu include Shizuoka University & Tokyo Denki University.
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Uncertainty in pitch measurements of one-dimensional grating standards using a nanometrological atomic force microscope
TL;DR: In this paper, the precision measurements of 240 nm-pitch one-dimensional grating standards were carried out using an atomic force microscope (AFM) with a high-resolution three-axis laser interferometer (nanometrological AFM).
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Model for complex heart rate dynamics in health and diseases
TL;DR: A physiologically motivated, dynamical model of cardiovascular autonomic regulation is shown to be capable of generating long-range correlated and multifractal heart rate, suggesting the possible use of the model as a state-of-the-art basis for further understanding of the physiological correlates of complex heart rate dynamics
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Model for cardiorespiratory synchronization in humans
TL;DR: A physiologically plausible model for this cardiorespiratory synchronization is developed, and numerically show that the model can exhibit stable synchronization against given perturbations.
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Analysis of the temporal coherence function of a femtosecond optical frequency comb
TL;DR: The theoretical derivation, which is based on the electric field equations of a pulse train, has been used to model the temporal coherence function of the FOFC and shows good agreement with experimental measurements which are taken with a modified Michelson interferometer.
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Space position measurement using long-path heterodyne interferometer with optical frequency comb.
TL;DR: It was verified that the absolute distance measurement can be realized by fringe scanning and frequency-shifting methods and is mainly caused by environmental condition changes and the vibration of the table and floor.