Results 141 to 150 of about 17,713 (284)
Bistability in non-equilibrium systems
, 1999 859-869Recent work on multiple steady states in chemical reactions including photochemical reactions, magnetic resonance and electrokinetic phenomena has been reviewed. Spatial bistability has also been discussed.
Mishra, A P, Rastogi, R P
core
Optical Bistability: Steady-State and Transient Behavior
, 1984 An optical system that can exist in either of two distinct stable transmission states for a given input intensity is said to exhibit optical bistability. For this to occur, the system’s transmission properties must depend on its output; that is, feedback
Rosenberger, A. T. +5 more
core +1 more source
Epilepsia, EarlyView.We examined the functional relationship between large‐scale δ‐band phase synchrony and local epileptogenic β–γ‐band amplitude bistability during NREM sleep. Increased synchrony and strong bistability characterized the epileptogenic zone, with strongest effects during N2 sleep, when seizures most frequently occur.
Gaia Burlando +14 more
wiley +1 more source
Core-shell nanoparticles: an approach to enhance electrical bistability
, 2008 CdS/PbS core-shell nanoparticles are grown via ion-exchange reaction route. Devices based on such nanoparticles exhibit electrical bistability and memory phenomena. We show that the bistability is due to charge confinement in the nanoparticles.
Ghosh, Batu +2 more
core +1 more source
FlexMat, EarlyView.Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu +3 more
wiley +1 more source
Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping
Laser &Photonics Reviews, EarlyView.A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás +5 more
wiley +1 more source
Development and Experimental Validation of a Bistable SMA Active Grill Shutter Actuator
Macromolecular Symposia, EarlyView.ABSTRACT This study explores the use of bistable shape memory alloy (SMA) actuators in active grille shutters (AGS) to improve vehicle aerodynamics. The actuator, designed for adaptive movement, was tested and refined to achieve a reliable 90° rotation.
Miriam Battaglia +5 more
wiley +1 more source
Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan +3 more
wiley +1 more source
Experimental Evidence of an Optical Bistability Based on Self - Focusing
مجلة علوم ذي قار, 2019 Optical bistability based on Self – Focusing of low power CW He-Ne laser radiation ,at the wavelength of 0.632?m ,has been experimentally evidence in liquid CS using a new simple and effective technique.
Hussain A. Badran
doaj
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley +1 more source