Results 31 to 40 of about 19,585 (258)

Parameterized Disturbance Observer Based Controller to Reduce Cyclic Loads of Wind Turbine

open access: yesEnergies, 2018
This paper is concerned with bump-less transfer of parameterized disturbance observer based controller with individual pitch control strategy to reduce cyclic loads of wind turbine in full load operation.
Raja M. Imran   +2 more
doaj   +1 more source

An Empirical Model of Ionospheric Total Electron Content Based on Tide‐Like Signature Modeling

open access: yesSpace Weather, 2023
Accurate modeling of the total electron content (TEC) benefits scientific research and practical application. In this study, the global ionospheric maps from the Center for Orbit Determination of Europe (CODE) covering the years 2000–2021 are utilized to
Haibing Ruan   +3 more
doaj   +1 more source

Radiation Risks in Cis-Lunar Space for a Solar Particle Event Similar to the February 1956 Event

open access: yesAerospace, 2021
Solar particle events (SPEs) can pose serious threats for future crewed missions to the Moon. Historically, there have been several extreme SPEs that could have been dangerous for astronauts, and thus analyzing their potential risk on humans is an ...
Fahad A. Zaman, Lawrence W. Townsend
doaj   +1 more source

Some bounds for the relative generalized Hamming weights of some evaluation codes

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper we find some bounds for the relative generalized Hamming weights of some codes parameterized by a set of monomials of the same degree.
Sarabia Manuel González
doaj   +1 more source

Non-intrusive nonlinear model reduction via machine learning approximations to low-dimensional operators

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2021
Although projection-based reduced-order models (ROMs) for parameterized nonlinear dynamical systems have demonstrated exciting results across a range of applications, their broad adoption has been limited by their intrusivity: implementing such a reduced-
Zhe Bai, Liqian Peng
doaj   +1 more source

Vanishing Ideals Over Odd Cycles

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
Let K be a finite field. Let X* be a subset of the a ne space Kn, which is parameterized by odd cycles. In this paper we give an explicit Gröbner basis for the vanishing ideal, I(X*), of X*.
Uribe-Paczka M. Eduardo   +2 more
doaj   +1 more source

Differentiable Programming for the Autonomous Movement Planning of a Small Vessel [PDF]

open access: yesTransNav, 2021
In this work we explore the use of differentiable programming to allow autonomous movement planning of a small vessel. We aim for an end to end architecture where the machine learning algorithm directly controls engine power and rudder movements of a ...
Christian Bahls, Agnes Schubert
doaj   +1 more source

Rate Adaption for Secure HARQ-CC System with Multiple Eavesdroppers

open access: yesEntropy, 2020
In this paper, we studied the secure transmission of a hybrid automatic repeat request with chase combining (HARQ-CC) system, under the existence of multiple eavesdroppers and limited latency.
Yue Wu   +4 more
doaj   +1 more source

EMIC wave parameterization in the long‐term VERB code simulation [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2017
AbstractElectromagnetic ion cyclotron (EMIC) waves play an important role in the dynamics of ultrarelativistic electron population in the radiation belts. However, as EMIC waves are very sporadic, developing a parameterization of such wave properties is a challenging task.
A. Y. Drozdov   +5 more
openaire   +4 more sources

Parametric Coding of Stereo Audio

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Parametric-stereo coding is a technique to efficiently code a stereo audio signal as a monaural signal plus a small amount of parametric overhead to describe the stereo image.
Erik Schuijers   +3 more
doaj   +1 more source

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