Results 51 to 60 of about 945,950 (190)

Self-similar solutions of semilinear wave equations with a focusing nonlinearity [PDF]

open access: yes, 2007
We prove that in three space dimensions a nonlinear wave equation $u_{tt}-\Delta u = u^p$ with $p\geq 7$ being an odd integer has a countable family of regular spherically symmetric self-similar solutions.Comment: 12 pages, 3 figures, minor corrections ...
  +6 more
core   +1 more source

Mooring Stability Study for Novel Wave Energy Converter Based on Regular Wave

open access: yesJournal of Marine Science and Engineering, 2021
The mooring system not only plays a vital role in keeping wave energy generators floating stably, but also affects the success of engineering design. Combining wave force theory and the hydrological data obtained from the field measurements of a certain ...
Zhongliang Meng   +3 more
doaj   +1 more source

Alternate islands of multiple isochronous chains in wave-particle interactions

open access: yes, 2013
We analyze the dynamics of a relativistic particle moving in a uniform magnetic field and perturbed by a standing electrostatic wave. We show that a pulsed wave produces an infinite number of perturbative terms with the same winding number, which may ...
Caldas, I. L.   +4 more
core   +1 more source

Regularity of Wave-Maps in Dimension 2 + 1 [PDF]

open access: yesCommunications in Mathematical Physics, 2010
In this article we prove a Sacks-Uhlenbeck/Struwe type global regularity result for wave-maps $ :\mathbb{R}^{2+1}\to\mathcal{M}$ into general compact target manifolds $\mathcal{M}$.
Sterbenz, Jacob, Tataru, Daniel
openaire   +5 more sources

Numerical Investigation of Water Wave Impacting a Structure Using Fluid–Structure Interaction Simulation

open access: yesModelling
Unmanned surface vehicles (USVs) have great application prospects in defense, environmental surveillance and offshore energy due to their cost-effectiveness and long-duration mission ability.
Yifei Peng   +3 more
doaj   +1 more source

Coherence as ultrashort pulse train generator

open access: yes, 2010
Intense, well-controlled regular light pulse trains start to play a crucial role in many fields of physics. We theoretically demonstrate a very simple and robust technique for generating such periodic ultrashort pulses from a continuous probe wave which ...
A. Pe’er   +17 more
core   +1 more source

Laboratory simulations of wave attenuation by an emergent vegetation of artificial Phragmites australis: an experimental study of an open-channel wave flume

open access: yesJournal of Environmental Engineering and Landscape Management, 2015
This paper presents a well-controlled laboratory experimental study to evaluate wave attenuation by artificial emergent plants (Phragmites australis) under different wave conditions and plant stem densities.
Li Yiping   +8 more
doaj   +1 more source

Influence of Porous Column-Type Breakwater on the Regular Wave Hydrodynamic Characteristics of Uneven Reefs

open access: yesRedai dili
Coral reefs, which are among the oldest and most biodiverse ocean ecosystems, play irreplaceable roles in sustaining global fishery resources and protecting coastal areas and biological habitats.
Yewenya Liu   +4 more
doaj   +1 more source

Experimental Study on the Distribution of Wave-Induced Excess Pore Pressure in a Sandy Seabed around a Mat Foundation

open access: yesJournal of Marine Science and Engineering, 2019
Mat foundations are widely used in jack-up offshore platforms to support and transfer loads. Regarding mat foundations working on the seabed, the excess wave-induced pore pressure is critical to seabed stability, which may finally cause structural ...
Qingyun Yuan   +2 more
doaj   +1 more source

Cuspons, peakons and regular gap solitons between three dispersion curves

open access: yes, 2002
A general wave model with the cubic nonlinearity is introduced to describe a situation when the linear dispersion relation has three branches, which would intersect in the absence of linear couplings between the three waves. Actually, the system contains
A. Aceves   +29 more
core   +1 more source

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