Results 31 to 40 of about 1,709,745 (295)
Estimating the weak-lensing rotation signal in radio cosmic shear surveys [PDF]
, 2016 Weak lensing has become an increasingly important tool in cosmology and the use of galaxy shapes to measure cosmic shear has become routine. The weak-lensing distortion tensor contains two other effects in addition to the two components of shear: the ...
Brown, Michael L. +3 more
core +2 more sources
Signal processing in local neuronal circuits based on activity-dependent noise and competition
, 2009 We study the characteristics of weak signal detection by a recurrent neuronal network with plastic synaptic coupling. It is shown that in the presence of an asynchronous component in synaptic transmission, the network acquires selectivity with respect to
Andersen P. +7 more
core +1 more source
Two-qubit parametric amplifier: large amplification of weak signals
, 2012 Using numerical simulations, we show that two coupled qubits can amplify a weak signal about hundredfold. This can be achieved if the two qubits are biased simultaneously by this weak signal and a strong pump signal, both of which having frequencies ...
A. L. Rakhmanov +11 more
core +1 more source
Application of digital cross-correlation technology in AC electrical equipment
Gong-kuang zidonghua, 2013 In view of problem of low measurement accuracy when traditional electric equipment measures formation with big resistivity, the paper proposed a scheme of using digital cross-correlation technology to reduce noise in AC electrical equipment.
WU Lai-jie, MA Bin, LU Gui-ying
doaj +1 more source
Cosmic variance of the galaxy cluster weak lensing signal
, 2015 Intrinsic variations of the projected density profiles of clusters of galaxies at fixed mass are a source of uncertainty for cluster weak lensing. We present a semi-analytical model to account for this effect, based on a combination of variations in halo
Becker, M. R. +4 more
core +1 more source
HST/ACS weak lensing analysis of the galaxy cluster RDCS 1252.9-2927 at z=1.24
, 2005 We present a weak lensing analysis of one of the most distant massive galaxy cluster known, RDCS 1252.9-2927 at z=1.24, using deep images from the Advanced Camera for Survey (ACS) on board the Hubble Space Telescope (HST).
Bartelmann M. +27 more
core +2 more sources
The Weak Lensing Signal and the Clustering of BOSS Galaxies I: Measurements
, 2015 A joint analysis of the clustering of galaxies and their weak gravitational lensing signal is well-suited to simultaneously constrain the galaxy-halo connection as well as the cosmological parameters by breaking the degeneracy between galaxy bias and the
Brinkmann, J. +8 more
core +1 more source
The Recovery of Weak Impulsive Signals Based on Stochastic Resonance and Moving Least Squares Fitting [PDF]
, 2014 In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery.
Fengshou Gu +19 more
core +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Patient activation—encompassing knowledge, confidence, and skills in managing individual's health—is a cornerstone of person‐centered care. However, its significance among childhood, adolescent, and young adult cancer survivors (CAYACS) remains unexplored. This article examines the application of the 13‐item Patient Activation Measure (
Charlotte Demoor‐Goldschmidt +12 more
wiley +1 more source
Interpolating Masked Weak Lensing Signal with Karhunen-Loeve Analysis
, 2011 We explore the utility of Karhunen Loeve (KL) analysis in solving practical problems in the analysis of gravitational shear surveys. Shear catalogs from large-field weak lensing surveys will be subject to many systematic limitations, notably incomplete ...
A. J. Connolly +28 more
core +1 more source