A5051048883- Advanced Fiber Laser Technologies
- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Nonlinear Dynamics and Pattern Formation
- Solid State Laser Technologies
- Laser Design and Applications
- Advanced Materials and Mechanics
- Cellular transport and secretion
- Quantum chaos and dynamical systems
- Modular Robots and Swarm Intelligence
- Surface Modification and Superhydrophobicity
- Advanced Surface Polishing Techniques
- Nanofabrication and Lithography Techniques
- Adaptive optics and wavefront sensing
- Hearing Impairment and Communication
- Oceanographic and Atmospheric Processes
- Geomagnetism and Paleomagnetism Studies
- Lipid Membrane Structure and Behavior
- Mechanical and Optical Resonators
- Solar and Space Plasma Dynamics
- High-pressure geophysics and materials
- Micro and Nano Robotics
- Diamond and Carbon-based Materials Research
- Injury Epidemiology and Prevention
- Adhesion, Friction, and Surface Interactions
Okinawa Institute of Science and Technology Graduate University
2018-2022
University of Oxford
2017-2018
Oxford Institute for Energy Studies
2016
Low-cost and robust platforms are key for the development of next-generation 3D micro- nanodevices. To fabricate such platforms, nanocrystalline diamond (NCD) is a highly appealing material due to its biocompatibility, robustness, mechanical, electrical, electrochemical, optical properties, while glass substrates with through vias ideal interposers integration excellent properties glass. However, developing devices that comprised NCD films (TGVs) has rarely been attempted lack effective...
In this letter, we demonstrate a relation between the boundary curvature $\kappa$ and wrinkle wavelength $\lambda$ of thin suspended film under confinement. Experiments are done with nanocrystalline diamond films thickness $t \approx 184$~nm grown on glass substrates. By removing portions substrate after growth, circular boundaries radius $R$ ranging from approximately 30 to 811 $\mu$m made. Due residual stresses, attached compressive prestrain $\epsilon_0 11 \times 10^{-4}$ azimuthally...
Abstract Variable stars play a crucial role as standard candles and provide valuable insights into stellar physics. They can be modeled either through fully fledged hydrodynamical simulations or analytically systems of coupled differential equations describing the evolution relevant physical quantities. Typically, such are arrived at by simplified assumptions concerning conservation laws governing interiors. Here we apply data-driven technique—sparse identification nonlinear dynamics...
The dynamics of interacting vortex filaments in an incompressible fluid, which are nearly parallel, have been approximated the Klein–Majda–Damodaran model. regime considers deflection each filament from a central axis; that is to say, assumed be roughly parallel and centred along lines. While this model has attracted fair amount mathematical interest recent literature, particularly concerning existence certain specific structures, our aim generalise several known interesting solutions, found...
The discovery of Pluto’s small moons in the last decade has brought attention to dynamics dwarf planet’s satellites. With such systems mind, we study a planar [Formula: see text]-body system which all bodies are point masses, except for single rigid body. We then present reduced model consisting problem with body treated as 1D continuum (i.e. is rod an arbitrary mass distribution). Such provides good approximation highly asymmetric geometries, recently observed interstellar asteroid...
Motivated by the observation of comets and asteroids rotating in non-principal axis (NPA) states, we investigate relaxation a freely precessing triaxial ellipsoidal rotator towards its lowest-energy spin state. Relaxation precession arises from internal dissipative stresses generated self-gravitation inertial forces spin. We develop general theory to determine viscoelastic rotator, under any linear rheology, for both long-axis (LAM) short-axis (SAM) modes. By methods continuum mechanics,...
We study chaotic rotations of a rigid ellipsoidal body due to the effects gravitational torques, in case where this exhibits spin-orbit misalignment. After first deriving simple model ellipsoid uniform mass distribution with principal axis rotation directed slightly out orbital plane, we prove using Melnikov method that perturbation is sufficient excite chaotically rotate for circular orbit. further verify analytical result numerical time series and Poincaré sections orbits. then use...
Biological cells and membranes need to be properly shaped fulfill many fundamental functions. This shaping is often aided by the aggregation of membrane-bound proteins that both sense membrane curvature shape it. Therefore, these protein inclusions interact with each other through deformation they influence, a key question understand law governs their interaction. Whereas theoretical case isotropic well understood, an important feature such anisotropic interaction membrane. Here, we derive...
Amplitude death, which occurs in a system when one or more macroscopic wavefunctions collapse to zero, has been observed mutually coupled solid-state lasers, analog circuits, and thermoacoustic oscillators, name few applications. While studies have considered amplitude death on oscillator systems externally forced complex Ginzburg-Landau systems, route not studied autonomous continuum systems. We derive simple analytic conditions for the onset of wavefunction two equations with general...