Results 11 to 20 of about 14,538,904 (339)

On the concentration of the crest factor for OFDM signals [PDF]

open access: yes2011 8th International Symposium on Wireless Communication Systems, 2011
This paper applies several concentration inequalities to prove concentration results for the crest factor of OFDM signals. The considered approaches are, to the best of our knowledge, new in the context of establishing concentration for OFDM signals.
I. Sason
semanticscholar   +4 more sources

Recent Advances in Crest Factor Minimization of Multisine

open access: yesElektronika ir Elektrotechnika, 2017
Multisine signals are used in many applications like fast estimation of frequency response function, as well as in a variety of other fields. Synthesis of a low crest factor (CF) multisine waveform with the given amplitude spectrum depends on initial ...
J. Ojarand, M. Min
semanticscholar   +4 more sources

Logtone crest factors [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 1988
The Schroeder and random methods are compared with a time-frequency-domain swapping algorithm for the crest-factor reduction of logtones used in 1/3 octave analysis. The theoretically stated tendency of logtone-crest factors to grow with the square root of the logarithm of the number of components is confirmed experimentally. This dependence also holds
E. Van der Ouderaa, J. Renneboog
openaire   +4 more sources

SoxE factors as multifunctional neural crest regulatory factors [PDF]

open access: yesThe International Journal of Biochemistry & Cell Biology, 2010
Neural crest cells are the primary innovation that led to evolution of the vertebrates, and transcription factors of the SoxE family (Sox8, Sox9 and Sox10) are among the central players regulating the development of these cells. In all vertebrates examined to date, one or more SoxE proteins are required for the formation of neural crest cells, the ...
Caroline E, Haldin, Carole, LaBonne
openaire   +2 more sources

A Joint Crest Factor Reduction and Digital Predistortion for Power Amplifiers Linearization Based on Clipping-and-Bank-Filtering

open access: yesIEEE transactions on microwave theory and techniques, 2020
The power efficiency and the linearity of a power amplifier (PA) depend on its operating point. A high efficiency generally corresponds to poor linearity.
Siqi Wang   +3 more
semanticscholar   +1 more source

Factors influencing credentialing of interventionists in the CREST-2 trial [PDF]

open access: yesJournal of Vascular Surgery, 2020
The Carotid Revascularization and Medical Management for Asymptomatic Carotid Stenosis Trial (CREST-2) is a pair of randomized trials assessing the relative efficacy of carotid revascularization in the setting of intensive medical management (IMM) in patients with asymptomatic high-grade atherosclerotic stenosis.
Brajesh K, Lal   +17 more
openaire   +2 more sources

Modified DRM+ signal generation algorithm with reduced crest factor

open access: yesФизика волновых процессов и радиотехнические системы, 2020
To reduce the crest factor in the DRM+ system due to the limitations imposed by the standard the peak limiting method (clipping) and the window weighting method, which are based on signal distortion, are widely used.
Konstantin Yu. Morozov
doaj   +1 more source

Fault detection and diagnosis of linear bearing in auto core adhesion mounting machines based on condition monitoring

open access: yesSystems Science & Control Engineering, 2021
This study aims to increase machine reliability thereby preventing product defects from adhesive dispense and slider attachment by a fault detection and diagnostic technique. The experiment was set up to investigate the vibration signal and motor current.
Prathan Chommuangpuck   +2 more
doaj   +1 more source

Molecular mechanisms of neural crest formation [PDF]

open access: yes, 1999
The neural crest is a transient population of multipotent precursor cells named for its site of origin at the crest of the closing neural folds in vertebrate embryos.
Bronner-Fraser, Marianne   +1 more
core   +1 more source

A novel spalt gene expressed in branchial arches affects the ability of cranial neural crest cells to populate sensory ganglia [PDF]

open access: yes, 2004
Cranial neural crest cells differentiate into diverse derivatives including neurons and glia of the cranial ganglia, and cartilage and bone of the facial skeleton.
Barembaum, Meyer   +1 more
core   +1 more source

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