Results 21 to 30 of about 7,404,344 (336)

Two-Beam Emitting Via a Single Subwavelength Metal Slit Surrounded by Mixed-Period Dielectric Grooves

open access: yesIEEE Photonics Journal, 2013
We use mixed-period dielectric grooves to surround a single metal slit to realize two-beam nonsymmetrical and symmetrical emitting for the transmitted light emerged from the subwavelength slit.
Ying-jie Su, Hung-chun Chang
doaj   +1 more source

Optimal Path Configuration with Coded Laser Pilots for Charging Electric Vehicles Using High Intensity Laser Power Beams

open access: yesApplied Sciences, 2021
Wireless power transmission (WPT) for wireless charging has been gaining wide attention as a promising approach to miniaturizing the battery size and increasing the maximal total range of an electric vehicle (EV).
Gunzung Kim   +3 more
doaj   +1 more source

The GRB Variability/Peak Luminosity Correlation: new results [PDF]

open access: yes, 2005
We report test results of the correlation between time variability and peak luminosity of Gamma-Ray Bursts (GRBs), using a larger sample (32) of GRBs with known redshift than that available to Reichart et al. (2001), and using as variability measure that
A. Gomboc   +8 more
core   +2 more sources

POWER BEAMING LEAKAGE RADIATION AS A SETI OBSERVABLE [PDF]

open access: yes, 2016
The most observable leakage radiation from an advanced civilization may well be from the use of power beaming to transfer energy and accelerate spacecraft. Applications suggested for power beaming involve launching spacecraft to orbit, raising satellites
J. Benford, D. Benford
semanticscholar   +1 more source

The Dynamics and Light Curves of Beamed Gamma Ray Burst Afterglows [PDF]

open access: yes, 1999
The energy requirements of gamma ray bursts have in past been poorly constrained because of three major uncertainties: The distances to bursts, the degree of burst beaming, and the efficiency of gamma ray production. The first of these has been resolved,
James E. Rhoads, Wijers R. A. M. J.
core   +3 more sources

X-ray Emission Properties of Large Scale Jets, Hotspots and Lobes in Active Galactic Nuclei [PDF]

open access: yes, 2004
We examine a systematic comparison of jet-knots, hotspots and radio lobes recently observed with Chandra and ASCA. This report will discuss the origin of their X-ray emissions and investigate the dynamics of the jets.
Akujor C. E.   +9 more
core   +1 more source

Collective Evidence for Inverse Compton Emission from External Photons in High-Power Blazars [PDF]

open access: yes, 2012
We present the first collective evidence that Fermi-detected jets of high kinetic power (L_kin) are dominated by inverse Compton emission from upscattered external photons.
Abdo   +20 more
core   +3 more sources

Millimeter-Wave Retrodirective Wireless Power Transfer Applicable to Small Electronic Devices

open access: yesIEEE Journal of Microwaves
With the recent surge in popularity of the Internet of Things (IoT), there also has been a notable increase in research on wirelessly charging IoT enabled electronic devices. Millimeter-wave retrodirective power beaming has recently emerged as a suitable
Sooyoung Oh   +6 more
doaj   +1 more source

Pitch-angle Anisotropy Imprinted by Relativistic Magnetic Reconnection

open access: yesThe Astrophysical Journal, 2023
Radiation emitted by nonthermal particles accelerated during relativistic magnetic reconnection is critical for understanding the nonthermal emission in a variety of astrophysical systems, including blazar jets, black hole coronae, pulsars, and magnetars.
Luca Comisso, Brian Jiang
doaj   +1 more source

Asymmetry of jets, lobe size and spectral index in radio galaxies and quasars [PDF]

open access: yes, 1998
We investigate the correlations between spectral index, jet side and extent of the radio lobes for a sample of nearby FRII radio galaxies. In Dennett-Thorpe et al.
Bridle, A. H.   +3 more
core   +4 more sources

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