Results 21 to 30 of about 481,772 (339)

Reliability-based optimization for multiple constraints with evolutionary algorithms [PDF]

open access: yes, 2007
In this paper, we combine reliability-based optimization with a multi-objective evolutionary algorithm for handling uncertainty in decision variables and parameters.
Branke, Jürgen   +2 more
core   +2 more sources

The Optical Signature of a Bottom Boundary Layer Ventilation Event in the Northern Gulf of Mexico's Hypoxic Zone

open access: yesGeophysical Research Letters, 2018
Oceanographic observations in the northern Gulf of Mexico captured an unusual combination of atmospheric forcing and shelf frontal dynamics that brought about the surface ventilation of sediment‐laden bottom waters.
Jason K. Jolliff   +5 more
doaj   +1 more source

Design of Active PWM Control Driver Circuit for Torquer System Using CCII

open access: yesIEEE Access, 2021
This research examines a torquer system for satellite attitude control which requires low energy, or average power, to control its moment. The magnetic torquer consists of an LR component, source and switching pulse.
Vijay Kumar Verma, Rajeev Kumar Ranjan
doaj   +1 more source

Hydrological connectivity inferred from diatom transport through the riparian-stream system [PDF]

open access: yes, 2015
Funding for this research was provided by the Luxembourg National Research Fund (FNR) in the framework of the BIGSTREAM (C09/SR/14), ECSTREAM (C12/SR/40/8854) and CAOS (INTER/DFG/11/01) projects.
Ector, L.   +6 more
core   +3 more sources

Resampling images in Fourier domain [PDF]

open access: yes, 2014
When simulating sky images, one often takes a galaxy image $F(x)$ defined by a set of pixelized samples and an interpolation kernel, and then wants to produce a new sampled image representing this galaxy as it would appear with a different point-spread ...
Bernstein, Gary M., Gruen, Daniel
core   +1 more source

A Note on Smooth Points in Orlicz Sequence Spaces

open access: yesJournal of Harbin University of Science and Technology, 2021
In this paper,when φ( u) /u→A( u→∞ ) the criterion of smooth points in Orlicz sequence space generated by general Orlicz functions and the equivalence conditions of smooth points with very smooth points and strong smooth points are given. On this basis,
WANG Jing, CUI Yun-an
doaj   +1 more source

Thomas rotation and Thomas precession [PDF]

open access: yes, 2005
Exact and simple calculation of Thomas rotation and Thomas precessions along a circular world line is presented in an absolute (coordinate-free) formulation of special relativity. Besides the simplicity of calculations the absolute treatment of spacetime
A. A. Ungar   +17 more
core   +2 more sources

Riemann Invariants and Rank-k Solutions of Hyperbolic Systems [PDF]

open access: yes, 2005
In this paper we employ a "direct method" in order to obtain rank-k solutions of any hyperbolic system of first order quasilinear differential equations in many dimensions.
Burnat M   +19 more
core   +3 more sources

Hilbert space structure and classical limit of the low energy sector of U(N) quantum Hall ferromagnets

open access: yesSciPost Physics Proceedings, 2023
Using the Lieb–Mattis ordering theorem of electronic energy levels, we identify and construct the Hilbert space of the low energy sector of U(N) quantum Hall/Heisenberg ferromagnets at filling factor M for L Landau/lattice sites.
Manuel Calixto, Alberto Mayorgas, Julio Guerrero
doaj   +1 more source

Weak completeness of the Bourbaki quasi-uniformity

open access: yesApplied General Topology, 2001
The concept of semicompleteness (weaker than half-completeness) is defined for the Bourbaki quasi-uniformity of the hyperspace of a quasi-uniform space.
M.A. Sánchez Granero
doaj   +1 more source

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