Results 1 to 10 of about 3,495,328 (352)

The statistics of wide-separation lensed quasars [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2002
The absence of any wide-separation gravitational lenses in the Large Bright Quasar Survey is used to place limits on the population of cluster-sized halos in the universe, and hence constrain a number of cosmological parameters. The results agree with previous investigations in strongly ruling out the standard cold dark matter model but they are ...
D. Mortlock, R. L. Webster
core   +9 more sources

A statistics-based automated flood event separation

open access: yesJournal of Hydrology X, 2021
The classification of characteristics of flood events, like peak, volume, duration and baseflow components is essential for many hydrological applications such as multivariate flood statistics, the validation of rainfall-runoff models and comparative ...
Svenja Fischer   +2 more
doaj   +4 more sources

An Interpretable Machine-Learning Algorithm to Predict Disordered Protein Phase Separation Based on Biophysical Interactions

open access: yesBiomolecules, 2022
Protein phase separation is increasingly understood to be an important mechanism of biological organization and biomaterial formation. Intrinsically disordered protein regions (IDRs) are often significant drivers of protein phase separation.
Hao Cai   +2 more
doaj   +2 more sources

A weighted mixed statistics algorithm for blind source separation [PDF]

open access: greenIEEE International Conference on Acoustics Speech and Signal Processing, 2002
Publication in the conference proceedings of EUSIPCO, Toulouse, France ...
Klajman, Constantinides
  +9 more sources

Underdetermined Blind Source Separation for Heart Sound Using Higher-Order Statistics and Sparse Representation

open access: yesIEEE Access, 2019
Underdetermined blind source separation (UBSS) is a hot and challenging problem in signal processing. In the traditional UBSS algorithm, the number of source signals is often assumed to be known, which is very inconvenient in practice. In addition, it is
Yuan Xie, Kan Xie, Shengli Xie
doaj   +2 more sources

Blind source separation with integrated photonics and reduced dimensional statistics

open access: bronzeOptics Letters, 2020
Microwave communications have witnessed an incipient proliferation of multi-antenna and opportunistic technologies in the wake of an ever-growing demand for spectrum resources, while facing increasingly difficult network management over widespread ...
Y. Philip   +7 more
openalex   +2 more sources

The statistics of wide-separation lenses

open access: green, 2000
The probability that high-redshift sources are gravitationally-lensed with large image separations (i.e., greater than can be produced by galactic deflectors) is determined by the cosmological population of group- and cluster-sized halos. Thus the observed frequency of wide-separation lensed quasars can be used to constrain not only the halo ...
D. Mortlock
openalex   +4 more sources

Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation [PDF]

open access: goldInternational Journal of Antennas and Propagation, 2018
We focus on the interference statistical metrics of matched filter transmission over line-of-sight (LoS) downlink channels. The exact moments of the interference are derived, which can be used to make approximations for user rates and gain insights into ...
Yawei Yu, Jianhua Zhang, Lei Tian
doaj   +2 more sources

Statistics of bedload transport over steep slopes: Separation of time scales and collective motion [PDF]

open access: bronze, 2012
Steep slope streams show large fluctuations of sediment discharge across several time scales. These fluctuations may be inherent to the internal dynamics of the sediment transport process.
Joris Heyman   +3 more
openalex   +3 more sources

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