Results 51 to 60 of about 994,541 (211)
Multifractal analysis of discretized X-ray CT images for the characterization of soil macropore structures [PDF]
, 2010 A correct statistical model of soil pore structure can be critical for understanding flow and transport processes in soils, and creating synthetic soil pore spaces for hypothetical and model testing, and evaluating similarity of pore spaces of different ...
Caniego Monreal, Francisco +6 more
core +3 more sources
Risks, 2019 We analyzed real telematics information for a sample of drivers with usage-based insurance policies. We examined the statistical distribution of distance driven above the posted speed limit—which presents a strong positive asymmetry—using ...
Ana M. Pérez-Marín +3 more
doaj +1 more source
Racism in Football in Portugal: Perceptions of Multiple Actors
Social Sciences, 2023 The present paper aims to analyze and understand, from an intersectional point of view, the extent and the characteristics of racism in football in Portugal, based on the perspectives of football fans, coaches, amateur players, professional players ...
Sofia Neves +3 more
doaj +1 more source
Energy Reports, 2018 Photovoltaic cells in series-connected modules may operate in the second quadrant of the current–voltage characteristics via power control circuits. In the second quadrant of the current–voltage characteristics of dye-sensitized solar cells (DSSCs), the ...
Shiro Iwata +3 more
doaj +1 more source
10Gbit/s modulation of a fast switching slotted Fabry-Pérot tunable laser [PDF]
, 2007 The device used is a three-section, 3mum wide ridge waveguide laser based on commercially available material. During the fabrication a series of slots are introduced into the front and back sections, which act as sites of internal reflections.
Barry, Liam P. +6 more
core +1 more source
, 2004 The Submillimeter Array (SMA), a collaborative project of the Smithsonian Astrophysical Observatory (SAO) and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), has begun operation on Mauna Kea in Hawaii. A total of eight 6-m telescopes
Blundell R. +5 more
core +1 more source
Two-stage Channel Frequency Response Estimation in OFDM Systems [PDF]
, 2020 This paper proposes two-stage channel frequency response estimation algorithm in communication systems with OFDM technology. Algorithm is based on Kalman filter. Pilots from current and previous OFDM symbols are used for channel estimation.
Myronchuk, Oleksandr +2 more
core +2 more sources
Regulation of behavioral response to stress by microRNA-690
Molecular Brain, 2021 Psychiatric disorders are affected by genetic susceptibility and environmental adversities. Therefore, the regulation of gene expression under certain environments, such as stress, is a key issue in psychiatric disorders.
Jungyoung Park +3 more
doaj +1 more source
Electroweak corrections to top-quark pair production in quark--antiquark annihilation
, 2005 Top-quark physics plays an important role at hadron colliders such as the Tevatron at Fermilab or the LHC at CERN. Given the planned precision at these colliders, precise theoretical predictions are required.
04 +28 more
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Nuclear Engineering and Technology, 2014 An electrical resistance tomography (ERT) technique combining the particle swarm optimization (PSO) algorithm with the Gauss-Newton method is applied to the visualization of two-phase flows.
BO AN LEE +4 more
doaj +1 more source