Results 91 to 100 of about 161,880 (312)
The Use of Cryogenic HEMT Amplifiers in Wide Band Radiometers [PDF]
, 2000 Advances in device fabrication, modelling and design techniques have made wide band, low noise cryogenic amplifiers available at frequencies up to 106 GHz. Microwave radiometry applications as used in radio astronomy capitalize on the low noise and large
Jarosik, Norman
core +1 more source
Remote Sensing, 2013 Daytime measurements of reflected sunlight in the visible spectrum have been a staple of Earth-viewing radiometers since the advent of the environmental satellite platform.
S. Miller +8 more
semanticscholar +1 more source
Disproportional ventilatory response to incremental exercise in individuals with cerebral palsy
Developmental Medicine &Child Neurology, EarlyView.Individuals with cerebral palsy demonstrate a disproportionate ventilatory response during incremental exercise. Compared with typically developing peers, respiratory frequency increases earlier and at comparable exercise intensities, contributing to higher perceived exertion and reduced ventilatory efficiency. At task failure, respiratory frequency is
Linnéa Corell +14 more
wiley +1 more source
Noise-optimized silicon radiometers
Journal of Research of the National Institute of Standards and Technology, 2000 This paper describes a new, experimentally verified, noise analysis and the design considerations of the dynamic characteristics of silicon radiometers. Transimpedance gain, loop gain, and voltage gain were optimized versus frequency for photodiode current meters measuring ac and dc optical radiation.
openaire +2 more sources
Planck-LFI: Design and Performance of the 4 Kelvin Reference Load Unit [PDF]
, 2009 The LFI radiometers use a pseudo-correlation design where the signal from the sky is continuously compared with a stable reference signal, provided by a cryogenic reference load system.
A Brighenti +57 more
core +2 more sources
Mechanisms of Body Alignment in a Diurnal Songbird Migrant
Ethology, EarlyView.The graphical abstract illustrates the body alignment mechanism of a diurnal songbird migrant, the dunnock (Prunella modularis). Dunnocks consistently expressed an angular body alignment, with inter‐individual variation at the level of the population.
Christina Spiliopoulou +3 more
wiley +1 more source
Comparison of Decadal Trends among Total Solar Irradiance Composites of Satellite Observations
Advances in Astronomy, 2019 We present a new analysis of the two-decade-old controversy over interpretation of satellite observations of total solar irradiance (TSI) since 1978 and the implications of our findings for TSI as a driver of climate change.
Nicola Scafetta, Richard C. Willson
doaj +1 more source
Three-dimensional vector modeling and restoration of flat finite wave tank radiometric measurements [PDF]
The three-dimensional vector interaction between a microwave radiometer and a wave tank was modeled. Computer programs for predicting the response of the radiometer to the brightness temperature characteristics of the surroundings were developed along ...
Balanis, C. A., Truman, W. M.
core +1 more source
Use of both linear and logarithmic transfer functions to increase dynamic range of visual channel [PDF]
, 1969 Using both linear and logarithmic transfer functions in the visual channels of a dual channel radiometer increases the dynamic range to better than 1 to 10,000 foot ...
Peretko, H. T.
core +1 more source
, 2015 . This paper presents a detailed description of LIRIC (LIdar-Radiometer Inversion Code) algorithm for simultaneous processing of coincident lidar and radiometric (sun photometric) observations for the retrieval of the aerosol concentration vertical ...
A. Chaikovsky +37 more
semanticscholar +1 more source