Results 91 to 100 of about 160,425 (302)

Propagation failure of traveling waves in a discrete bistable medium

open access: yes, 1997
Propagation failure (pinning) of traveling waves is studied in a discrete scalar reaction-diffusion equation with a piecewise linear, bistable reaction function.
Abramovitz   +19 more
core   +1 more source

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

open access: yesAdvanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He   +4 more
wiley   +1 more source

Depinning transitions in discrete reaction-diffusion equations

open access: yes, 2002
We consider spatially discrete bistable reaction-diffusion equations that admit wave front solutions. Depending on the parameters involved, such wave fronts appear to be pinned or to glide at a certain speed. We study the transition of traveling waves to
Bonilla, L. L., Carpio, A.
core   +1 more source

Radial propagation in population dynamics with density-dependent diffusion

open access: yes, 2013
The population dynamics that evolves in the radial symmetric geometry is investigated. The nonlinear reaction-diffusion model, which depends on population density, is employed as the governing equation for this system. The approximate analytical solution
Ngamsaad, Waipot
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

The sign of the wave speed for the Lotka-Volterra competition-diffusion system [PDF]

open access: yes
[[abstract]]In this paper, we study the traveling front solutions of the Lotka-Volterra competition-diffusion system with bistable nonlinearity. It is well-known that the wave speed of traveling front is unique.
C. Conley   +13 more
core   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Traveling waves in rapid solidification

open access: yesElectronic Journal of Differential Equations, 2000
We analyze rigorously the one-dimensional traveling wave problem for a thermodynamically consistent phase field model. Existence is proved for two new cases: one where the undercooling is large but not in the hypercooled regime, and the other for waves ...
Karl Glasner
doaj  

A novel protection scheme for MMC-MTDC systems based on traveling wave characteristics and improved EEMD analysis

open access: yesInternational Journal of Electrical Power & Energy Systems
The Modular Multilevel Converter based Multi-Terminal Direct Current (MMC-MTDC) system is a promising solution for long-distance, high-capacity power transmission, but its complex topology and high sensitivity to DC faults pose challenges for protection ...
Yangyang He   +5 more
doaj   +1 more source

Building an Optical Free-Electron Laser in the Traveling-Wave Thomson-Scattering Geometry

open access: yesFrontiers in Physics, 2019
We show how optical free-electron lasers and enhanced incoherent Thomson scattering radiation sources can be realized with Traveling-Wave Thomson-Scattering (TWTS) today.
Klaus Steiniger   +12 more
doaj   +1 more source

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