Results 71 to 80 of about 93,868 (305)
Mixed-mode oscillations with multiple time scales
, 2010 Mixed-mode oscillations (MMOs) are trajectories of a dynamical system in which there is an alternation between oscillations of distinct large and small amplitudes.
Desroches, MF +5 more
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Frontiers in Cell and Developmental Biology, 2018 Egg activation at fertilization in mammalian eggs is caused by a series of transient increases in the cytosolic free Ca2+ concentration, referred to as Ca2+ oscillations. It is widely accepted that these Ca2+ oscillations are initiated by a sperm derived
Jessica R. Sanders +4 more
doaj +1 more source
Free oscillations in nonlinear oscillating circuit
Electronics Letters, 1967 An oscillating circuit with nonlinear capacitance in a free oscillating regime is examined. Assuming that the circuit has small losses and high Q factor, a formula is obtained for the envelope of the free oscillations which differs from the exponential. The greater the influence of the nonlinear element the greater is this difference.
openaire +1 more source
Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides
Advanced Functional Materials, EarlyView.A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri +11 more
wiley +1 more source
Quantum oscillations and high carrier mobility in the delafossite PdCoO2
, 2012 We present de Haas-van Alphen and resistivity data on single crystals of the delafossite PdCoO2. At 295 K we measure an in-plane resistivity of 2.6 μΩcm, making PdCoO2 the most conductive oxide known.
Mackenzie, Andrew +11 more
core +1 more source
Advanced Functional Materials, EarlyView.Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk +7 more
wiley +1 more source
Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction
Advanced Functional Materials, EarlyView.This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur +3 more
wiley +1 more source
Oscillatory glucose flux in INS 1 pancreatic beta cells: A self-referencing microbiosensor study
, 2011 Signaling and insulin secretion in beta cells have been reported to demonstrate oscillatory modes, with abnormal oscillations associated with type 2 diabetes.
Claussen, Jonathan C. +13 more
core +1 more source
Bacterial‐Electrochemical Platform Utilizing a MXene‐Peptide Hydrogel
Advanced Functional Materials, EarlyView.A peptide‐based fibrillar hydrogel incorporating MXene facilitates efficient electron delivery to intracellular recombinant [FeFe]‐hydrogenase enzyme in E. coli, enabling sustained bioelectrochemical H2 production without engineered exoelectrogenicity pathways.
Oren Ben‐Zvi +6 more
wiley +1 more source
Analytical description of chaotic oscillations in a toroidal thermosyphon
, 1995 Multiple time scales and singular perturbation techniques are used to describe the ordinary and the chaotic oscillations due to natural convection in a fluid loop subject to a known external heat flux. The turbulent flow in the loop is modelled using the
Liñán Martínez, Amable
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