Results 71 to 80 of about 8,030,235 (300)
Photonics, 2014 We compare optical time domain reflectometry (OTDR) techniques based on conventional single impulse, coding and linear frequency chirps concerning their signal to noise ratio (SNR) enhancements by measurements in a passive optical network (PON) with a ...
Christopher M. Bentz +2 more
doaj +1 more source
High frequency homogenisation for elastic lattices [PDF]
, 2014 A complete methodology, based on a two-scale asymptotic approach, that enables the homogenisation of elastic lattices at non-zero frequencies is developed. Elastic lattices are distinguished from scalar lattices in that two or more types of coupled waves
Colquitt, D. J. +2 more
core
High-frequency analysis of parabolic stochastic PDEs
, 2019 We consider the problem of estimating stochastic volatility for a class of second-order parabolic stochastic PDEs. Assuming that the solution is observed at a high temporal frequency, we use limit theorems for multipower variations and related ...
Chong, Carsten
core +1 more source
Parametric Nanomechanical Amplification at Very High Frequency [PDF]
, 2009 Parametric resonance and amplification are important in both fundamental physics and technological applications. Here we report very high frequency (VHF) parametric resonators and mechanical-domain amplifiers based on nanoelectromechanical systems (NEMS).
Feng, X. L. +2 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background We describe clinical and biologic characteristics of neuroblastoma in older children, adolescents, and young adults (OCAYA); describe survival outcomes in the post‐immunotherapy era; and identify if there is an age cut‐off that best discriminates outcomes.
Rebecca J. Deyell +14 more
wiley +1 more source
Spectral variability in faint high frequency peakers [PDF]
, 2010 We present the analysis of simultaneous multi-frequency Very Large Array (VLA) observations of 57 out of 61 sources from the ``faint'' high frequency peaker (HFP) sample carried out in various epochs.
Abazajian +33 more
core +1 more source
High mutation frequency induced by hybridization [PDF]
, 1939 The increase in variability that is a familiar result of the rearing of second generations from crosses between different races is certainly due chiefly to segregation and recombination of genes in which the parental races differed.
Sturtevant, A. H.
core
Spatial interpolation of high-frequency monitoring data
, 2009 Climate modelers generally require meteorological information on regular grids, but monitoring stations are, in practice, sited irregularly. Thus, there is a need to produce public data records that interpolate available data to a high density grid ...
Stein, Michael L.
core +1 more source
High Frequency Trading and Mini Flash Crashes [PDF]
, 2012 We analyse all Mini Flash Crashes (or Flash Equity Failures) in the US equity markets in the four most volatile months during 2006-2011. In contrast to previous studies, we find that Mini Flash Crashes are the result of regulation framework and market ...
Golub, Anton +2 more
core +2 more sources