Results 21 to 30 of about 93,087 (303)

Improved limit on the directly measured antiproton lifetime

open access: yesNew Journal of Physics, 2017
Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime.
S Sellner   +17 more
doaj   +1 more source

Lattices with Symmetry [PDF]

open access: yesJournal of Cryptology, 2016
Published in Journal of Cryptology.
Lenstra, HW, Silverberg, A
openaire   +6 more sources

The Lepschy stability test and its application to fractional-order systems [PDF]

open access: yesArchives of Control Sciences, 2021
It is shown how a stability test, alternative to the classical Routh test, can profitably be applied to check the presence of polynomial roots inside half-planes or even sectors of the complex plane.
Daniele Casagrande   +2 more
doaj   +1 more source

Symbolic computation of variational symmetries in optimal control [PDF]

open access: yes, 2006
We use a computer algebra system to compute, in an efficient way, optimal control variational symmetries up to a gauge term. The symmetries are then used to obtain families of Noether's first integrals, possibly in the presence of nonconservative ...
André Gomes-dos-Santos   +17 more
core   +3 more sources

Meson spectroscopy at COMPASS

open access: yesEPJ Web of Conferences, 2016
The goal of the COMPASS experiment at CERN is to study the structure and dynamics of hadrons. The two-stage spectrometer used by the experiment has large acceptance and covers a wide kinematic range for charged as well as neutral particles and can ...
Grube Boris
doaj   +1 more source

Networked Analysis of a Teaching Unit for Primary School Symmetries in the Form of an E-Book

open access: yesMathematics, 2021
In mathematics education, technology offers many opportunities to enrich curricular contents. Plane symmetries is a topic often skipped by primary teachers.
Angel Gutiérrez   +2 more
doaj   +1 more source

Classical-physics applications for Finsler b space

open access: yesPhysics Letters B, 2015
The classical propagation of certain Lorentz-violating fermions is known to be governed by geodesics of a four-dimensional pseudo-Finsler b space parametrized by a prescribed background covector field.
Joshua Foster, Ralf Lehnert
doaj   +1 more source

On the Constitutive Modelling of Piezoelectric Quasicrystals

open access: yesCrystals, 2023
Quasicrystals endowed with piezoelectric properties belong nowadays to novel piezoelectric materials. In this work, the basic framework of generalized piezoelectricity theory of quasicrystals is investigated by providing an improvement of the existing ...
Eleni Agiasofitou, Markus Lazar
doaj   +1 more source

Detection of symmetry and anti-symmetry

open access: yesVision Research, 2005
To assess the role of second-order channels in symmetry perception we measured the effects of check size, spatial frequency content, eccentricity and grey scale range on the detection of symmetrical and anti-symmetrical patterns. Thresholds for symmetrical stimuli were only moderately affected by these manipulations.
Mancini, Sandra   +2 more
openaire   +2 more sources

Patterns, symmetry, and symmetry breaking [PDF]

open access: yesCommunications of the ACM, 2008
Explaining software patterns by breaking the symmetry created by programming languages.
openaire   +3 more sources

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