Results 51 to 60 of about 88,310 (160)

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

Research Progress on SAR Inversion of Crop and Soil Parameters Based on Microwave Scattering Theory

open access: yesLeida xuebao
Crop and soil parameters serve as fundamental indicators for characterizing crop growth status and monitoring vegetation dynamics. Radar remote sensing presents unique advantages, such as all-weather and day-and-night observation capabilities, as well as
Shangrong WU   +6 more
doaj   +1 more source

Semi-empirical modelling of stellar magnetic activity [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractSince Galileo, for four hundred years, dark spots have been observed systematically on the surface of the Sun. The monitoring of the sunspot number has shown that their number varies periodically every 11 years. This is the well-known solar activity cycle that is caused by the periodic changes of the magnetic field of the Sun. Not only do spots
openaire   +1 more source

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

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  

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