Results 21 to 30 of about 2,594,281 (295)

Examining the Broadband Emission Spectrum of WASP-19b: A New z-band Eclipse Detection [PDF]

open access: yes, 2013
WASP-19b is one of the most irradiated hot-Jupiters known. Its secondary eclipse is the deepest of all transiting planets and has been measured in multiple optical and infrared bands.
Bailey, Jeremy   +3 more
core   +1 more source

Spectrum of Singly Charged Uranium (U II) : Theoretical Interpretation of Energy Levels, Partition Function and Classified Ultraviolet Lines

open access: yesAtoms, 2017
In an attempt to improve U II analysis, the lowest configurations of both parities have been interpreted by means of the Racah-Slater parametric method, using Cowan codes.
Ali Meftah   +3 more
doaj   +1 more source

On the integrated continuum radio spectrum of supernova remnant W44 (G34.7-0.4): New insights from Planck [PDF]

open access: yesSerbian Astronomical Journal, 2015
In this paper, the integrated continuum radio spectrum of supernova remnant (SNR) W44 was analyzed up to 70 GHz, testing the different emission models that can be responsible for its particular shape.
Onić D.
doaj   +1 more source

InPBi Quantum Dots for Super-Luminescence Diodes

open access: yesNanomaterials, 2018
InPBi thin film has shown ultra-broad room temperature photoluminescence, which is promising for applications in super-luminescent diodes (SLDs) but met problems with low light emission efficiency.
Liyao Zhang   +4 more
doaj   +1 more source

Tailoring emission spectra by using microcavities

open access: yesResults in Physics, 2019
We present a theoretical model to describe emission spectrum of an emitter in a micro-cavity. Our model proposes that the spectrum in a metal micro-cavity depends on the product of the emission spectrum in free space and the local density of states (LDOS)
Muhammad Hanif Ahmed Khan Khushik   +1 more
doaj   +1 more source

Frequency Dependence of Air Breakdown and Investigation of Its Electro-Optical Characteristics

open access: yesEnergies
With the expanding frequency range of power equipment, understanding the frequency-dependent insulation performance of air becomes crucial. To address this, this paper establishes an integrated electrical–optical measurement platform for air breakdown to
Ya Wang   +5 more
doaj   +1 more source

Conditions for Pulse Gas-Discharge Synthesis of Thin Films with High Ion Conductivity

open access: yesЖурнал нано- та електронної фізики
The results of experimental study of the characteristics of high-voltage nanosecond discharge between electrodes of polycrystalline argyrodite (Ag8GeS6) in air at different pressures (p = 7-101 kPa) and different frequencies of voltage pulses are ...
O.K. Shuaibov   +6 more
doaj   +1 more source

Pion transverse-momentum spectrum and elliptic anisotropy of partially coherent source

open access: yesPhysics Letters B, 2018
In this letter, we study the pion momentum distribution of a coherent source and investigate the influences of coherent emission on the pion transverse-momentum (pT) spectrum and elliptic anisotropy.
Peng Ru, Ghulam Bary, Wei-Ning Zhang
doaj   +1 more source

Assessment of the degree of contamination of insulation by the radiation spectrum of surface partial discharges

open access: yesИзвестия высших учебных заведений: Проблемы энергетики
Unplanned overhead power line outages are typically associated with flashover of line insulation due to contamination and moisture. Powerful partial discharges on the insulation surface (SPD) can serve as a precursor to flashover. They can be detected by
Alexander G. Ovsyannikov   +2 more
doaj   +1 more source

Quasiclassical approach to synergic synchrotron–Cherenkov radiation in polarized vacuum

open access: yesNew Journal of Physics, 2020
Photon emission by an ultrarelativistic charged particle in extremely strong magnetic field is analyzed, with vacuum polarization and photon recoil taken into account. Vacuum polarization is treated phenomenologically via refractive index.
I I Artemenko   +2 more
doaj   +1 more source

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