Results 71 to 80 of about 91,930 (296)
Dynamics of DNA Bubble in Viscous Medium
, 2012 The damping effect to the DNA bubble is investigated within the Peyrard-Bishop model. In the continuum limit, the dynamics of the bubble of DNA is described by the damped nonlinear Schrodinger equation and studied by means of variational method.
Alatas, H. +3 more
core +1 more source
Nonlinear spiral density waves - Viscous damping
The Astrophysical Journal, 1985 The formalism of Borderies, Goldreich, and Tremaine (1984), as simplified by Shu and Stewart (1985), is used to develop a theory for the viscous damping of nonlinear density waves in particulate disks of moderate collision frequency. The specific application is to Saturn's rings, but the development is general enough to allow application to a wider ...
F. H. Shu +4 more
openaire +1 more source
All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security
Advanced Materials, EarlyView.An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak +4 more
wiley +1 more source
Demonstration of a switchable damping system to allow low-noise operation of high-Q low-mass suspension systems [PDF]
, 2017 Low mass suspension systems with high-Q pendulum stages are used to enable quantum radiation pressure noise limited experiments. Utilising multiple pendulum stages with vertical blade springs and materials with high quality factors provides attenuation ...
Barr, Bryan W. +19 more
core +3 more sources
Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
wiley +1 more source
Equivalent Viscous Damping Coefficient of Sucker Rod String Wave Equation
Shiyou jixie, 2016 In order to improve the estimation accuracy of viscous damping coefficient of sucker rod sting’s wave equation,a method of determining viscous damping coefficient based on equal friction loss has been proposed.By establishing motion equation of laminar ...
Lao Liming +3 more
doaj
Seismic Response Mitigation of a Long-Span Tower Bridge with Two Types of Constraint System
Advances in Civil Engineering, 2020 The stress of the main tower of a cable-stayed bridge depends on the connection type between the tower and deck. In order to study the most suitable longitudinal damping mode for a long-span cable-stayed bridge.
Li Xu +4 more
doaj +1 more source
Cascades of energy and helicity in the GOY shell model of turbulence
, 1997 The effect of extreme hyperviscous damping, $\nu k_n^p, p=\infty$ is studied numerically in the GOY shell model of turbulence. It has resently been demonstrated [Leveque and She, Phys. Rev. Lett, 75,2690 (1995)] that the inertial range scaling in the GOY
Ditlevsen, P. D.
core +1 more source
Oscillations of a gas pocket on a liquid-covered solid surface [PDF]
, 2012 The dynamic response of a gas bubble entrapped in a cavity on the surface of a submerged solid subject to an acoustic field is investigated in the linear approximation.
Aaldert G. Zijlstra +5 more
core +4 more sources
Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks
Advanced Materials, EarlyView.ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li +20 more
wiley +1 more source