Takanobu Okazaki

ORCID: 0000-0002-5698-901X
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About
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Research Areas
  • Piezoelectric Actuators and Control
  • Peripheral Artery Disease Management
  • Ferroelectric and Piezoelectric Materials
  • Solidification and crystal growth phenomena
  • Acoustic Wave Resonator Technologies
  • Stability and Controllability of Differential Equations
  • Topology Optimization in Engineering
  • Advanced Mathematical Modeling in Engineering
  • Venous Thromboembolism Diagnosis and Management
  • Nonlinear Dynamics and Pattern Formation
  • Ultrasonics and Acoustic Wave Propagation
  • Cerebrovascular and Carotid Artery Diseases
  • Model Reduction and Neural Networks
  • Shape Memory Alloy Transformations
  • Metallurgy and Material Forming
  • Diagnosis and Treatment of Venous Diseases
  • Coronary Interventions and Diagnostics
  • Mechanical and Optical Resonators
  • Systemic Lupus Erythematosus Research
  • Vascular Procedures and Complications

Hiroshima General Hospital
2023-2025

Chiba University
2002-2006

We consider a general class of ordinary differential systems which describes input‐output relations hysteresis types, for instance, play or stop operators. The system consists two first‐order nonlinear ODEs and one them includes subdifferential operator depending on the unknowns. Our main objective this paper is to give an existence‐uniqueness result as well various numerical simulations typical cases.

10.1155/s108533750220603x article EN cc-by Abstract and Applied Analysis 2002-01-01

An apparatus has been developed for the measurement of ultrasonic resonances a solid cube or parallelepiped, which involves method excitation and detection. The key point is that small reentrant-type microwave cavity used in apparatus. sample vibration due to electrostatic force between metal-coated surface outer cavity. resonant frequency measured by taking advantage amplitude modulation characteristic This caused capacitance change vibration. so it mounted “mK-stabilized cell” previously,...

10.1063/1.1921607 article EN Review of Scientific Instruments 2005-05-18

We consider a nonlinear ordinary differential system which describes hysteresis input-output relations. The main part of this is governed by subdifferential operator and it used to present various effects.   In real phenomena, many branches are observed. interested in verifying our express such branches. Our objective talk investigate the precise behaviour orbits solutions show some numerical simulations.

10.3934/proc.2007.2007.804 article EN 2007-09-01
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