Results 121 to 130 of about 37,382 (306)

Engineering Epsilon‐Near‐Zero Media with Waveguides

open access: yesAdvanced Physics Research
Epsilon‐Near‐Zero (ENZ) media have attracted widespread interest due to their unique electromagnetic properties, which have brought distinctive characteristics and phenomena, such as spatiotemporal decoupling, supercoupling and tunneling, constant phase ...
Peihang Li   +5 more
doaj   +1 more source

Mechanical stress induced electrical emissions in cement based materials

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This work deals with the underlying physical mechanisms and processes that dominate the fracture of cement based materials and their electrical properties ...
Kyriazopoulos, Antonios
core  

Bridging Boltzmann and Non‐Boltzmann Optical Thermometry Enabled by Multimodal Perovskite Nanocrystals

open access: yesAdvanced Optical Materials, EarlyView.
Multimodal perovskite nanocrystals enable optical thermometry across multiple excitation and emission regimes, spanning the UV–Vis–NIR spectral range. By combining upconversion, downshifting, and persistent luminescence, the platform bridges conventional Boltzmann and non‐Boltzmann thermometric approaches.
Adrian Drozdowski   +2 more
wiley   +1 more source

Origin of the Kerker phenomena

open access: yesPhysical Review Research
We provide an insight into the origin of the phenomena reported 40 years ago by Kerker et al. [J. Opt. Soc. Am. 73, 765 (1983)0030-394110.1364/JOSA.73.000765]. We show that the impedance and refractive index matching conditions, discussed in Secs. II and
Jon Lasa-Alonso   +4 more
doaj   +1 more source

Physics of Seismo-Electromagnetic Phenomena: Twenty Years After

open access: yes, 2012
This paper presents a work that aims to study seismo-electromagnetic phenomena in the Western Part of the Eurasia-Nubia Plate Boundary. This region has a significant tectonic activity combined with relatively low electromagnetic noise levels, rendering ...
Bezzeghoud, M., Silva, H.G.
core  

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

ELECTROMAGNETIC IMPACT ON BIOLOGICALLY ACTIVE POINTS WHILE CARRYNG OUT FOLL'S METHOD MEDICATION TESTING

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
Electromagnetic impact on biologically active points while carrying out Foll’s method of medication testing is considered. It is shown, that characteristic thermal radiation of tested medications is able to cause resonant phenomena in biological ...
V. A. Savastenko, V. M. Belov
doaj  

PERTURBATION THEORY FOR ELECTROMAGNETIC WAVE SCATTERING IN RANDOM LAYERED STRUCTURES

open access: yes, 2010
The problem of electromagnetic wave scattering in 3-D random layered structures, is analytical treated by relying on original results of the Boundary Perturbation Theory (BPT) and Volumetric-Perturbative Reciprocal Theory (VPRT), whose structured ...
Imperatore, Pasquale
core  

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

A Closer Cooperation between Space and Seismology Communities – a Way to Avoid Errors in Hunting for Earthquake Precursors

open access: yesRussian Journal of Earth Sciences
The space physicists and the earthquake (EQ) prediction community exploit the same instruments – magnetometers, but for different tasks: space physicists try to comprehend the global electrodynamics of near-Earth space on various time scales, whereas the
Pilipenko Vyacheslav, Shiokawa K.
doaj   +1 more source

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