Results 31 to 40 of about 9,496 (196)

Seismic Waves Do Sense Fracture Connectivity: Experimental Validation

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Fracture connectivity is a key parameter controlling fluid flow throughout the Earth's crust. While some theoretical and numerical studies suggest that seismic waves are sensitive to fracture connectivity, an experimental validation of this critically important phenomenon was so far unavailable.
Yanbin He   +9 more
wiley   +1 more source

Magnetic properties of the double perovskites LaPbMSbO6 (M = Mn, Co and Ni)

open access: yes, 2013
New double perovskites LaPbMSbO6, where M2+ = Mn2+, Co2+, and Ni2+, were synthesized as polycrystals by an aqueous synthetic route at temperatures below 1000 oC.
Carbonio, R. E.   +2 more
core   +1 more source

Symmetry enhancement interpolation, non-commutativity and Double Field Theory

open access: yesJournal of High Energy Physics, 2019
We present a moduli dependent target space effective field theory action for (truncated) heterotic string toroidal compactifications. When moving continuously along moduli space, the stringy gauge symmetry enhancement-breaking effects, which occur at ...
G. Aldazabal   +3 more
doaj   +1 more source

On the Influence of Noise on the Critical and Oscillatory Behavior of a Predator-Prey Model: Coherent Stochastic Resonance at the Proper Frequency [PDF]

open access: yes, 2000
Noise induced changes in the critical and oscillatory behavior of a Prey-Predator system are studied using power spectrum density and Spectral Amplification Factor (SAF) analysis.
A.F. Rozenfeld   +36 more
core   +2 more sources

Thermoelectric Processes of Quantum Normal‐Superconductor Interfaces

open access: yesAnnalen der Physik, Volume 537, Issue 11, November 2025.
Recent advances on using mesoscopic normal‐superconductor junctions for the thermoelectric effect is reviewed. A theoretical framework is presented for multiterminal configurations exploiting properties characterised by the interplay of the system reduced dimensionality and superconducting correlations.
Liliana Arrachea   +5 more
wiley   +1 more source

Potenciales para la diversificación de la matriz energética delCentro Nacional de Electromagnetismo Aplicado

open access: yesRevista Científica de Ingeniería Energética, 2019
El objetivo de este trabajo fue evaluar el potencial de diversificación de la matriz energética del Centro Nacional de Electromagnetismo Aplicado (CNEA). Esta evaluación se realizó a través de tres pasos. En el primer paso, se determinó
Mónica Rosario Berenguer Ungaro   +4 more
doaj  

Silicon nitride polarisation beam splitters: a review

open access: yesIET Optoelectronics, 2020
In this work, the authors review different design setups of polarisation beam splitters (PBSs) developed in Si3N4 platforms. They analyse different approaches based on directional couplers and interferometers.
Mauricio Tosi   +3 more
doaj   +1 more source

Anisotropic suppression of hyperuniformity of elastic systems in media with planar disorder

open access: yesCommunications Materials, 2022
Disordered hyperuniform materials are interesting due to the asymptotic absence of long-wavelength density fluctuations, leading to unconventional phenomenology.
Joaquín Puig   +8 more
doaj   +1 more source

Cumulant expansion framework for internal gradient distributions tensors

open access: yesJournal of Magnetic Resonance Open, 2023
Magnetic resonance imaging is a powerful, non invasive tool for medical diagnosis. The low sensitivity for detecting the nuclear spin signals, typically limits the image resolution to several tens of micrometers in preclinical systems and millimeters in ...
Leonardo A. Pedraza Pérez   +1 more
doaj   +1 more source

Stochastic resonance in bistable systems: The effect of simultaneous additive and multiplicative correlated noises

open access: yes, 1999
We analyze the effect of the simultaneous presence of correlated additive and multiplicative noises on the stochastic resonance response of a modulated bistable system. We find that when the correlation parameter is also modulated, the system's response,
Bulsara A.   +5 more
core   +1 more source

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