Results 21 to 30 of about 2,016,170 (332)
Modelling the Microphone-Related Timbral Brightness of Recorded Signals
Applied Sciences, 2021 Brightness is one of the most common timbral descriptors used for searching audio databases, and is also the timbral attribute of recorded sound that is most affected by microphone choice, making a brightness prediction model desirable for automatic ...
Andy Pearce, Tim Brookes, Russell Mason
doaj +1 more source
The new world atlas of artificial night sky brightness [PDF]
Science Advances, 2016 The world atlas of zenith artificial night sky brightness is modelled with VIIRS DNB data and calibrated with more than 35,000 observations. Artificial lights raise night sky luminance, creating the most visible effect of light pollution—artificial ...
F. Falchi +8 more
semanticscholar +1 more source
High-brightness seven-octave carrier envelope phase-stable light source [PDF]
, 2020 High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for a spectacular range of applications from bio-chemical sensing, to time ...
U. Elu +10 more
semanticscholar +1 more source
Nano-Micro Letters, 2021 Here, this work presents an air-stable ultrabright inverted organic light-emitting device (OLED) by using zinc ion-chelated polyethylenimine (PEI) as electron injection layer.
Shihao Liu +8 more
doaj +1 more source
Constraining the Limiting Brightness Temperature and Doppler Factors for the Largest Sample of Radio-bright Blazars [PDF]
Astrophysical Journal, 2018 Relativistic effects dominate the emission of blazar jets, complicating our understanding of their intrinsic properties. Although many methods have been proposed to account for them, the variability Doppler factor method has been shown to describe the ...
I. Liodakis +5 more
semanticscholar +1 more source
Magnitude Standardization Procedure for OWL-Net Optical Observations of LEO Satellites [PDF]
Journal of Astronomy and Space Sciences, 2015 As a governmentally approved domestic entity for Space Situational Awareness, Korea Astronomy and Space Science Institute (KASI) is developing and operating an optical telescopes system, Optical Wide-field PatroL (OWL) Network. During the test phase of
Dong-Goo Roh +12 more
doaj +1 more source
Surface brightness measurements for APM galaxies [PDF]
, 2002 This paper considers some simple surface brightness (SB) estimates for galaxies in the Automated Plate Measuring Machine (APM) catalogue in order to derive homogeneous SB data for a very large sample of faint galaxies.
Coles, P. +3 more
core +3 more sources
Results in Physics, 2017 In this paper, we have evaluated the brightness of lightning leaders shown in a digital still image by applying the astronomical magnitude system. In order to analyze the only lightning leaders, these were extracted from the digital still image.
Nobuaki Shimoji +2 more
doaj +1 more source
Toward a brightness upgrade to the SwissFEL: A high gradient traveling-wave rf photogun
Physical Review Accelerators and Beams, 2023 The first generation of S-band injectors for free-electron lasers has illustrated high reliability and performance by driving the latest generation of high brightness machines. However, the ultimate electron beam brightness of these devices is limited by
Thomas Geoffrey Lucas +13 more
doaj +1 more source
The Next Generation Virgo Cluster Survey (NGVS). XVIII. Measurement and Calibration of Surface Brightness Fluctuation Distances for Bright Galaxies in Virgo (and Beyond) [PDF]
, 2018 We describe a program to measure surface brightness fluctuation (SBF) distances to galaxies observed in the Next Generation Virgo Cluster Survey (NGVS), a photometric imaging survey covering 104 deg2 of the Virgo cluster in the u*, g, i, and z bandpasses
M. Cantiello +9 more
semanticscholar +1 more source