Search results for "ExAC"

showing 10 items of 1440 documents

Numerical study of soliton stability, resolution and interactions in the 3D Zakharov–Kuznetsov equation

2021

International audience; We present a detailed numerical study of solutions to the Zakharov-Kuznetsov equation in three spatial dimensions. The equation is a three-dimensional generalization of the Korteweg-de Vries equation, though, not completely integrable. This equation is L-2-subcritical, and thus, solutions exist globally, for example, in the H-1 energy space.We first study stability of solitons with various perturbations in sizes and symmetry, and show asymptotic stability and formation of radiation, confirming the asymptotic stability result in Farah et al. (0000) for a larger class of initial data. We then investigate the solution behavior for different localizations and rates of de…

Soliton stabilityIntegrable systemStrong interactionSoliton resolutionSpace (mathematics)01 natural sciencesStability (probability)Zakharov-Kuznetsov equationMathematics - Analysis of PDEsExponential stabilityFOS: MathematicsMathematics - Numerical Analysis0101 mathematics[MATH]Mathematics [math]Soliton interactionMathematical physicsPhysics[PHYS]Physics [physics]Radiation010102 general mathematicsStatistical and Nonlinear PhysicsNumerical Analysis (math.NA)Condensed Matter PhysicsSymmetry (physics)Exponential function010101 applied mathematicsNonlinear Sciences::Exactly Solvable and Integrable SystemsSolitonAnalysis of PDEs (math.AP)
researchProduct

Numerical study of blow-up and stability of line solitons for the Novikov-Veselov equation

2017

International audience; We study numerically the evolution of perturbed Korteweg-de Vries solitons and of well localized initial data by the Novikov-Veselov (NV) equation at different levels of the 'energy' parameter E. We show that as |E| -> infinity, NV behaves, as expected, similarly to its formal limit, the Kadomtsev-Petviashvili equation. However at intermediate regimes, i.e. when |E| is not very large, more varied scenarios are possible, in particular, blow-ups are observed. The mechanism of the blow-up is studied.

Soliton stability[ MATH ] Mathematics [math]media_common.quotation_subjectBlow-upInverse scatteringMathematics::Analysis of PDEsNonzero energyFOS: Physical sciencesGeneral Physics and Astronomy2-dimensional schrodinger operator01 natural sciencesStability (probability)Instability010305 fluids & plasmasMathematics - Analysis of PDEs[MATH.MATH-MP]Mathematics [math]/Mathematical Physics [math-ph]0103 physical sciencesFOS: MathematicsLimit (mathematics)0101 mathematics[MATH]Mathematics [math]Nonlinear Sciences::Pattern Formation and SolitonsMathematical PhysicsLine (formation)Mathematicsmedia_commonMathematical physicsNovikov–Veselov equationNonlinear Sciences - Exactly Solvable and Integrable SystemsKadomtsev-petviashvili equationsApplied Mathematics010102 general mathematics[ MATH.MATH-MP ] Mathematics [math]/Mathematical Physics [math-ph]InstabilityStatistical and Nonlinear PhysicsMathematical Physics (math-ph)InfinityNonlinear Sciences::Exactly Solvable and Integrable SystemsWell-posednessNovikov Veselov equationInverse scattering problemExactly Solvable and Integrable Systems (nlin.SI)Energy (signal processing)Analysis of PDEs (math.AP)
researchProduct

Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory

2011

The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AERA performs ‘‘radio- hybrid’’ measurements of air shower radio emission in coincidence with the surface particle detectors and fluorescence telescopes of the Pierre Auger Observatory, the radio analysis functionality had to be incorporated in the existing hybrid analysis solutions for fluorescence and surface detector data. This goal has been achieved in a natural way by extending the existing Auger Offline software framework with radio functionality. In this article, we lay out the design, highlights and features …

Source codeAstronomycomputer.software_genre01 natural sciencesObservatoryAuger experimentRadio detectionSOFTWARES (ANÁLISE)Instrumentationcosmic rays; radio detection; analysis software; detector simulationmedia_commonPhysicsPhysicsDetectoranalysis softwareAstrophysics::Instrumentation and Methods for AstrophysicsComputingMethodologies_DOCUMENTANDTEXTPROCESSINGFísica nuclearAstrophysics - Instrumentation and Methods for AstrophysicsComputer hardwareNuclear and High Energy Physics[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]media_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAnalysis softwareDetector simulationCosmic rayAstrophysics::Cosmology and Extragalactic AstrophysicsCosmic Rayradio detectionNuclear physicscosmic raysRAY AIR-SHOWERS0103 physical sciencesDETECTORSInstrumentation (computer programming)010306 general physicsInstrumentation and Methods for Astrophysics (astro-ph.IM)Cosmic raysCiencias ExactasNuclear and High Energy PhysicPierre Auger Observatory010308 nuclear & particles physicsbusiness.industrydetector simulationFísicaCosmic ray[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]Software frameworkAir showerExperimental High Energy PhysicsEMISSIONbusinesscomputerMONTE-CARLO SIMULATIONS
researchProduct

CCDC 809075: Experimental Crystal Structure Determination

2011

Related Article: K.Raatikainen, J.Huuskonen, K.Rissanen|2011|Dalton Trans.|40|5706|doi:10.1039/c1dt10406c

Space GroupCrystallography(3639-bis(((5'-Carboxy-22'-bipyridin-5-yl)carbonyl)amino)-42-(((5'-carboxylato-22'-bipyridin-5-yl)carbonyl)amino)-92031-triaza-11223-triazoniaheptacyclo[29.2.2.2^912^.2^2023^.1^37^.1^1418^.1^2529^]dotetraconta-3(42)4614(39)151725(36)2628-nonaene)-iron(ii) disulfate hexacosahydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1899010: Experimental Crystal Structure Determination

2019

Related Article: Jamie Hicks, Petra Vasko, Jose M. Goicoechea, Simon Aldridge|2019|J.Am.Chem.Soc.|141|11000|doi:10.1021/jacs.9b05925

Space GroupCrystallography(4713162124-hexaoxa-110-diazabicyclo[8.8.8]hexacosane)-potassium (27-di-t-butyl-N4N5-bis[26-di(propan-2-yl)phenyl]-99-dimethyl-9H-xanthene-45-bis(aminido))-phenyl-hydrido-aluminium(iii) benzene solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 976101: Experimental Crystal Structure Determination

2016

Related Article: Zouhour Denden, Wafa Harhouri, Leila Ben Haj Hassen, Yoann Rousselin, Eric Saint-Aman, Habib Nasri|2017|J.Mol.Struct.|1133|472|doi:10.1016/j.molstruc.2016.11.080

Space GroupCrystallography(4713162124-hexaoxa-110-diazabicyclo[8.8.8]hexacosane)-potassium(i) (5101520-tetrakis(4-methylphenyl)porphyrinato)-isothiocyanato-zinc(ii) chlorobenzene solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1473786: Experimental Crystal Structure Determination

2017

Related Article: Ahibur Rahaman, Carolina Gimbert-Suriñach, Arne Ficks, Graham E. Ball, Mohan Bhadbhade, Matti Haukka, Lee Higham, Ebbe Nordlander, Stephen B. Colbran|2017|Dalton Trans.|46|3207|doi:10.1039/C6DT01494A

Space GroupCrystallography(mu-(12-phenylenebis(methylene))bis(((ferrocenyl)methyl)phosphino))-hexacarbonyl-di-ironCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1850751: Experimental Crystal Structure Determination

2020

Related Article: Eswaran Chinnaraja, Rajendran Arunachalam, Renjith S. Pillai, Anssi Peuronen, Kari Rissanen, Palani S. Subramanian|2020|Appl.Organomet.Chem.|34|e5666|doi:10.1002/aoc.5666

Space GroupCrystallography(mu-1132-dimethyl-913:3034-bis(metheno)tetranaphtho[21-b:1'2'-d:2''1''-o:1'''2'''-q][161419]tetra-azacyclohexacosine-4344-diolato)-dichloro-di-copper acetonitrile solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1429442: Experimental Crystal Structure Determination

2015

Related Article: Alexander Ganß, Raquel Belda, Javier Pitarch, Richard Goddard, Enrique García-España, and Stefan Kubik|2015|Org.Lett.|17|5850|doi:10.1021/acs.orglett.5b03027

Space GroupCrystallography(mu-1417404366699295-octaoxa-1420273037535672798289-dodecaaza-11466398-tetraazoniatridecacyclo[54.48.2.2453.269.22225.22782.23079.23235.24851.25861.27477.28487.2100103]octacosahecta-68222432344850586074768486100102107109115117121123125127-tetracosaene)-dichloro-di-copper(ii) hexachloride nonahydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 764822: Experimental Crystal Structure Determination

2013

Related Article: Susanta Hazra, Sagarika Bhattacharya, Mukesh Kumar Singh, Luca Carrella, Eva Rentschler, Thomas Weyhermueller, Gopalan Rajaraman, and Sasankasekhar Mohanta|2013|Inorg.Chem.|52|12881|doi:10.1021/ic400345w

Space GroupCrystallography(mu2-Acetato-OO')-(mu2-5511171723-hexamethyl-371519-tetra-azatricyclo[19.3.1.1913]hexacosa-1(25)279(26)101214192123-decaene-2526-diolato)-acetato-aqua-iron(iii)-nickel(ii) perchlorate hydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct