Results 81 to 90 of about 695,487 (206)

Semi-empirical thermosphere model evaluation at low altitude with GOCE densities

open access: yesJournal of Space Weather and Space Climate, 2017
Aims: The quality of the Committee on Space Research (COSPAR) International Reference Atmosphere models NRLMSISE-00, JB2008, and DTM2013 in the 150–300 km altitude range has never been thoroughly evaluated due to a lack of good density data.
Bruinsma Sean   +3 more
doaj   +1 more source

Semi-empirical neural network models of controlled dynamical systems

open access: yesСовременные информационные технологии и IT-образование, 2017
A simulation approach is discussed for maneuverable aircraft motion as nonlinear controlled dynamical system under multiple and diverse uncertainties including knowledge imperfection concerning simulated plant and its environment exposure.
Mihail V. Egorchev , Yury V. Tiumentsev
doaj   +1 more source

A Unified Software Framework for Empirical Gramians [PDF]

open access: yes, 2013
A common approach in model reduction is balanced truncation, which is based on Gramian matrices classifying certain attributes of states or parameters of a given dynamic system.
Ohlberger, Mario   +3 more
core   +1 more source

Modelagem dos efeitos do vento na uniformidade da irrigação por aspersão: aspersores de tamanho médio Modeling of wind effects on water application uniformity of sprinkler irrigation: medium-sized sprinklers

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2012
O vento afeta a distribuição de água aplicada por aspersores, podendo tornar um determinado sistema de irrigação ineficiente. Nestas condições, a modelagem pode facilitar as avaliações de sistemas convencionais de aspersão, antes mesmo de sua implantação
Lessandro C Faria   +3 more
doaj   +1 more source

Semi-empirical sea-level modelling [PDF]

open access: yes, 2015
Semiempirische Meeresspiegelmodelle (SEMe) nutzen die physikalisch motivierte, empirische Beziehung des globalen Meeresspiegels zu einem bestimmten Antrieb. Im Folgenden ist das die mittlere globale Temperatur. Diese Modellklasse entstand als Ergänzung zu prozeßbasierten Modellen, die nicht alle relevanten Prozesse abbilden konnten (Rahmstorf (2007 ...
openaire  

Development of a visco-plastic constitutive modeling for thixoforming of AA6061 in semi-solid state [PDF]

open access: yes, 2014
A visco-plastic constitutive equation for thixoforming is proposed that takes into account the effect of the liquid fraction along with other factors i.e. strain rate and temperature.
Phillion, A.B.   +2 more
core   +1 more source

Grey-Box Model: An ensemble approach for addressing semi-supervised classification problems [PDF]

open access: yes, 2016
In this paper, we propose a novel and interpretable grey-box ensemble using a selflabeled approach for semi-supervised classification problems. The prospective greybox ensembles a more interpretable whitebox model with a black-box technique.
Nowe, A.   +3 more
core  

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