Results 11 to 20 of about 5,371,151 (345)

Evidence for Multiple Shocks from the γ-Ray Emission of RS Ophiuchi

open access: yesThe Astrophysical Journal, 2023
In 2021 August, the Fermi Large Area Telescope, H.E.S.S., and MAGIC detected GeV and TeV γ -ray emission from an outburst of recurrent nova RS Ophiuchi. This detection represents the first very high-energy γ -rays observed from a nova, and it opens a new
Rebecca Diesing   +6 more
doaj   +1 more source

Harmonics Signal Feature Extraction Techniques: A Review

open access: yesMathematics, 2023
Harmonic estimation is essential for mitigating or suppressing harmonic distortions in power systems. The most important idea is that spectrum analysis, waveform estimation, harmonic source classification, source location, the determination of harmonic ...
Minh Ly Duc, Petr Bilik, Radek Martinek
doaj   +1 more source

Rapid Design Exploration of Low Pass Highly Efficient Single Loop Single Bit Sigma Delta (Σ∆) Modulators

open access: yesComputer Assisted Methods in Engineering and Science, 2022
A rapid design and verification of sigma delta modulators are presented at the system level with high accuracy and computational efficiency. Sigma delta analog to digital converters showcased an excellent choice for low bandwidth applications from near ...
S. Vamsee Krishna   +2 more
doaj   +1 more source

Optical Supersymmetry in the Time Domain [PDF]

open access: yes, 2019
Originally emerged within the context of string and quantum field theory, and later fruitfully extrapolated to photonics, the algebraic transformations of quantum-mechanical supersymmetry were conceived in the space realm.
García-Meca, Carlos   +2 more
core   +1 more source

Gravitational Waves and Time Domain Astronomy [PDF]

open access: yes, 2011
The gravitational wave window onto the universe will open in roughly five years, when Advanced LIGO and Virgo achieve the first detections of high frequency gravitational waves, most likely coming from compact binary mergers. Electromagnetic follow-up of
Centrella, Joan   +2 more
core   +3 more sources

Time domain Einstein-Podolsky-Rosen correlation [PDF]

open access: yes, 2006
We experimentally demonstrate creation and characterization of Einstein-Podolsky-Rosen (EPR) correlation between optical beams in the time domain. The correlated beams are created with two independent continuous-wave optical parametric oscillators and a ...
Furusawa, Akira   +4 more
core   +2 more sources

Different domains – Different time preferences? [PDF]

open access: yesSocial Science & Medicine, 2018
The vast majority of studies examining the relation between time preferences and health behavior have applied a measure of preferences in the financial rather than in the health domain. Most studies find a small but significant correlation. If time preferences for health and money are not the same, this can have substantial consequences for the ...
Eskild Klausen Fredslund   +2 more
openaire   +2 more sources

Time domain analysis of excess loss in electrical steel [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2019
The aim of this paper is to present a comprehensive approach to analyse and interpret power loss in ferromagnetic materials with particular attention devoted to excess power loss.
Koprivica Branko   +2 more
doaj   +1 more source

Superlens in the Time Domain [PDF]

open access: yesPhysical Review Letters, 2012
It has been predicted theoretically and demonstrated experimentally that a planar slab supporting surface plasmons or surface phonon polaritons can behave as a super lens. However, the resolution is limited by the losses of the slab. In this letter, we point out that the resolution limit imposed by losses can be overcome by using time-dependent ...
Archambault, Alexandre   +2 more
openaire   +4 more sources

On the reflection of time-domain acoustic spherical waves by a sinusoidal diffraction grating

open access: yesActa Acustica, 2021
This work reports on some results obtained from numerical simulations of time-domain acoustic wave propagation in the presence of a periodically rough interface.
Gao Guochao   +3 more
doaj   +1 more source

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