Results 31 to 40 of about 254,576 (265)

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

Physics 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]

2016 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, Nikolaos Gianniotis, Kai Lars Polsterer   +2 more
openaire   +2 more sources

Многомасштабная модель геодинамо: сопряжение крупномасштабной и мелкомасштабной подмоделей

Vestnik 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., Фещенко, Л.К.   +1 more
doaj   +1 more source

Spectral modeling of GRB pulses [PDF]

AIP 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 goodness of fit for network models [PDF]

Social 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

Sensitivity experiments to mountain representations in spectral models

Annals 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, E. Roeckner, S. Gualdi, M. Biasutti, A. Navarra, U. Shulzweida   +5 more
doaj   +1 more source

Spectral modeling of magnetohydrodynamic turbulent flows [PDF]

Physical 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., Politano, Hélène, Ponty, Yannick, Pouquet, Annick   +3 more
openaire   +6 more sources

Spectral Variability in a Multilinear Mixing Model [PDF]

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
We present a new method for spectral unmixing which takes both nonlinear mixing and spectral variability into account. This is accomplished by combining the multiple endmember spectral mixture analysis (MESMA) approach with the recently developed multilinear mixing model (MLM).
Thorvald Dox, Rob Heylen, Paul Scheunders   +2 more
openaire   +2 more sources

Central Nervous System Neuroblastoma, FOXR2‐Activated: A Pooled Analysis of Published Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan, Mohamed S. Abdelbaki   +1 more
wiley   +1 more source

База данных параметров базисных мод и коэффициентов cпектральных моделей геодинамо

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki
Спектральные модели геодинамо строятся на основании конечного набора базисных стационарных полей (мод). Поля скорости, температуры и магнитной индукции представляются в моделях в виде линейных комбинаций базисных мод с коэффициентами (амплитудами ...
Водинчар, Г.М., Казаков, Е.А., Лисюткин, С.С.   +2 more
doaj   +1 more source