Search Results - "FINN, J. M"
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An optimal robust equidistribution method for two-dimensional grid adaptation based on Monge–Kantorovich optimization
Published in Journal of computational physics (01-12-2008)“…A new cell-area equidistribution method for two-dimensional grid adaptation, based on Monge–Kantorovich optimization (or Monge–Kantorovich optimal transport),…”
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2
Rossby Wave Instability of Thin Accretion Disks. II. Detailed Linear Theory
Published in The Astrophysical journal (20-04-2000)“…In an earlier work we identified a global, nonaxisymmetric instability associated with the presence of an extreme in the radial profile of the key function…”
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3
Quasi-separatrix layers and three-dimensional reconnection diagnostics for line-tied tearing modes
Published in Communications in nonlinear science & numerical simulation (01-05-2012)“…► We study a model of line-tied MHD modes, with no nulls or closed field lines. ► We analyze quasi-separatrix layers, the squashing factor, and two scalar…”
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4
Noise and error analysis and optimization in particle-based kinetic plasma simulations
Published in Journal of computational physics (01-09-2021)“…•Numerical noise is studied in a finite particle number system, by kernel density estimation.•Ornstein-Uhlenbeck bridge describes the electric field…”
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5
An Implicit, Nonlinear Reduced Resistive MHD Solver
Published in Journal of computational physics (01-05-2002)“…Implicit time differencing of the resistive magnetohydrodynamic (MHD) equations can step over the limiting time scales—such as Alfvén time scales—to resolve…”
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6
Meshfree Methods for Plasma Kinetic Theory
Published in 2023 IEEE International Conference on Plasma Science (ICOPS) (21-05-2023)“…We revisit a meshfree particle method for kinetic theory. We first treat a 1D electrostatic plasma with immobile ions. We find the electron density by kernel…”
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Conference Proceeding -
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What It Means to Be a Global University during a Pandemic
Published in Strategic enrollment management quarterly (01-10-2021)“…Leading through a pandemic shifted how enrollment management offices leverage their global networks. At New York University (NYU), leaders identified: what it…”
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Magnetic Helix Formation Driven by Keplerian Disk Rotation in an External Plasma Pressure: The Initial Expansion Stage
Published in The Astrophysical journal (10-11-2001)Get full text
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Robust, multidimensional mesh-motion based on Monge–Kantorovich equidistribution
Published in Journal of computational physics (2011)“…Mesh-motion (r-refinement) grid adaptivity schemes are attractive due to their potential to minimize the numerical error for a prescribed number of degrees of…”
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10
The numerical simulation of stretch flange forming
Published in International journal of plasticity (01-01-2000)“…Simulations of stretch flange forming operations are undertaken using explicit dynamic finite element calculations utilizing various quadratic and…”
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Modeling the Large-Scale Structures of Astrophysical Jets in the Magnetically Dominated Limit
Published in The Astrophysical journal (20-05-2006)“…We suggest a new approach that could be used for modeling both the large-scale behavior of astrophysical jets and the magnetically dominated explosions in…”
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12
A Magnetic α-ω Dynamo in AGN Disks. II. Magnetic Field Generation, Theories, and Simulations
Published in The Astrophysical journal (20-03-2007)Get full text
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13
Use of a coupled explicit—implicit solver for calculating spring-back in automotive body panels
Published in Journal of materials processing technology (01-03-1995)“…LS-DYNA3D, an explicit code, and LS-NIKE3D, an implicit code, have been coupled to facilitate the finite element (FE) modelling of sheet metal forming. The…”
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Journal Article Conference Proceeding -
14
Noise and error analysis and optimization in particle-based kinetic plasma simulations
Published 04-02-2021“…We analyze the noise in macro-particle methods used in plasma physics and fluid dynamics, leading to approaches for minimizing the total error, focusing on…”
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Erratum: Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron [Phys. Rev. Lett. 80, 452 (1998)]
Published in Physical review letters (08-03-1999)Get full text
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16
Hall MHD effects on the 2D Kelvin–Helmholtz/tearing instability
Published in Physics letters. A (24-02-2003)“…The Kelvin–Helmholtz (KHI)/tearing (TMI) instability is studied with a 2D incompressible Hall MHD model. In the equilibrium configuration of interest, the…”
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{sup 2}H(e,e'p)n Reaction at High Recoil Momenta
Published in Physical review letters (05-08-2002)“…The 2H(e,ep)n cross section was measured in Hall A of the Thomas Jefferson National Accelerator Facility near the top of the quasielastic peak (xBj = 0.964) at…”
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Precision measurement of the weak charge of the proton
Published in Nature (London) (10-05-2018)“…Large experimental programmes in the fields of nuclear and particle physics search for evidence of physics beyond that explained by current theories. The…”
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Noise-stabilized random attractor
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-02-2006)“…A two-dimensional flow model is introduced with deterministic behavior consisting of bursts that become successively larger, with longer interburst time…”
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Quasielastic 3He(e, e'p)2H reaction at Q2 = 1.5 GeV2 for recoil momenta up to 1 GeV/c
Published in Physical review letters (20-05-2005)“…We have studied the quasielastic 3He(e,e'p)2H reaction in perpendicular coplanar kinematics, with the energy and the momentum transferred by the electron fixed…”
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