Results 31 to 40 of about 324,518 (313)

A predictive model for the spectral “bioalbedo” of snow [PDF]

open access: yesJournal of Geophysical Research: Earth Surface, 2017
AbstractWe present the first physical model for the spectral “bioalbedo” of snow, which predicts the spectral reflectance of snowpacks contaminated with variable concentrations of red snow algae with varying diameters and pigment concentrations and then estimates the effect of the algae on snowmelt.
J. M. Cook   +4 more
openaire   +5 more sources

Running of the spectral index and inflationary dynamics of F(R) gravity

open access: yesPhysics Letters B, 2022
In this work we shall provide a model-independent general calculation of the running of the spectral index for vacuum F(R) gravities. We shall exploit the functional form of the spectral index and of the tensor-to-scalar ratio in order to present a ...
S.D. Odintsov, V.K. Oikonomou
doaj   +1 more source

A spectral model for multimodal redshift estimation [PDF]

open access: yes2016 IEEE Symposium Series on Computational Intelligence (SSCI), 2016
We present a physically inspired model for the problem of redshift estimation. Typically, redshift estimation has been treated as a regression problem that takes as input magnitudes and maps them to a single target redshift. In this work we acknowledge the fact that observed magnitudes may actually admit multiple plausible redshifts, i.e.
Sven Dennis Kügler   +2 more
openaire   +2 more sources

Многомасштабная модель геодинамо: сопряжение крупномасштабной и мелкомасштабной подмоделей

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
Формирование главного геомагнитного поля обеспечивается работой механизма гидромагнитного динамо — генерации магнитного поля движением проводящей среды. Динамо Земли (геодинамо) управляется конвекцией жидкого металла во внешнем ядре Земли.
Водинчар, Г.М.   +1 more
doaj   +1 more source

Spectral goodness of fit for network models [PDF]

open access: yesSocial Networks, 2014
We introduce a new statistic, 'spectral goodness of fit' (SGOF) to measure how well a network model explains the structure of an observed network. SGOF provides an absolute measure of fit, analogous to the standard R-squared in linear regression.
Jesse Shore, Benjamin Lubin
openaire   +2 more sources

Spectral variation of normalised laplacian for various network models [PDF]

open access: yes
Many network models have been proposed to mimic real-world systems when they become too large and complex to be described explicitly. Since the models inherit similar structural properties to the real-world network, by studying their nodes and links ...
Shah, N.M., Chan, K.T., Liang, Y.S.J.
core   +1 more source

Sensitivity experiments to mountain representations in spectral models

open access: yesAnnals of Geophysics, 2000
This paper describes a set of sensitivity experiments to several formulations of orography. Three sets are considered: a "Standard" orography consisting of an envelope orography produced originally for the ECMWF model, a"Navy" orography directly from the
U. Schlese   +5 more
doaj   +1 more source

Spectral modeling of GRB pulses [PDF]

open access: yesAIP Conference Proceedings, 2000
5 pages, 1 figure; has appeared in the AIP Conf. Proc. 526 (5th Huntsville Symposium on GRBs, Eds R.M. Kippen, R.S. Mallozzi & G.J.
openaire   +2 more sources

Spectral modeling of magnetohydrodynamic turbulent flows [PDF]

open access: yesPhysical Review E, 2008
We present a dynamical spectral model for Large Eddy Simulation of the incompressible magnetohydrodynamic (MHD) equations based on the Eddy Damped Quasi Normal Markovian approximation. This model extends classical spectral Large Eddy Simulations for the Navier-Stokes equations to incorporate general (non Kolmogorovian) spectra as well as eddy noise. We
Baerenzung, J.   +3 more
openaire   +6 more sources

Fuzzy spectral and spatial feature integration for classification of nonferrous materials in hyperspectral data [PDF]

open access: yes, 2009
Hyperspectral data allows the construction of more elaborate models to sample the properties of the nonferrous materials than the standard RGB color representation.
Iriondo, Pedro M.   +4 more
core   +1 more source

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