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pro vyhledávání: '"Numata, R"'
In this work, the development of two-dimensional current sheets with respect to tearing-modes, in collisionless plasmas with a strong guide field, is analysed. During their non-linear evolution, these thin current sheets can become unstable to the fo
Externí odkaz:
http://arxiv.org/abs/2302.03073
Autor:
Pedrizzetti G; Department of Engineering and Architecture, University of Trieste, Trieste, Italy. giannip@dia.units.it., Numata R; Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA., Collia D; Department of Cardiovascular Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA., Pedrizzetti G; Department of Chemical Engineering, Materials, Environment, INSTM Reference Laboratory for Engineering and Surface Treatments, Sapienza University of Rome, Rome, Italy., Zovatto L; Department of Engineering and Architecture, University of Trieste, Trieste, Italy., Banerjee A; Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA.
Publikováno v:
Scientific reports [Sci Rep] 2024 Oct 01; Vol. 14 (1), pp. 22760. Date of Electronic Publication: 2024 Oct 01.
The problem of the linear microtearing mode in a slab magnetised plasma, and its connection to kinetic reconnecting modes, is addressed. Electrons are described using a novel hybrid fluid-kinetic model that captures electron heating, ions are gyrokin
Externí odkaz:
http://arxiv.org/abs/1411.5604
Autor:
Numata, R., Loureiro, N. F.
Publikováno v:
J. Plasma Phys. 81 (2015) 305810201
Magnetic reconnection and associated heating of ions and electrons in strongly magnetised, weakly collisional plasmas are studied by means of gyrokinetic simulations. It is shown that an appreciable amount of the released magnetic energy is dissipate
Externí odkaz:
http://arxiv.org/abs/1406.6456
Publikováno v:
Phys. Plasmas 19, 122305 (2012)
In magnetized plasmas, a turbulent cascade occurs in phase space at scales smaller than the thermal Larmor radius ("sub-Larmor scales") [Phys. Rev. Lett. 103, 015003 (2009)]. When the turbulence is restricted to two spatial dimensions perpendicular t
Externí odkaz:
http://arxiv.org/abs/1208.1369
Publikováno v:
Phys. Plasmas 18, 112106 (2011)
Linear gyrokinetic simulations covering the collisional -- collisionless transitional regime of the tearing instability are performed. It is shown that the growth rate scaling with collisionality agrees well with that predicted by a two-fluid theory
Externí odkaz:
http://arxiv.org/abs/1107.5842
Autor:
Tatsuno, T., Barnes, M., Cowley, S. C., Dorland, W., Howes, G. G., Numata, R., Plunk, G. G., Schekochihin, A. A.
Publikováno v:
J. Plasma Fusion Res. SERIES 9, 509 (2010)
Two-dimensional electrostatic turbulence in magnetized weakly-collisional plasmas exhibits a cascade of entropy in phase space [Phys. Rev. Lett. 103, 015003 (2009)]. At scales smaller than the gyroradius, this cascade is characterized by the dimensio
Externí odkaz:
http://arxiv.org/abs/1003.3933
In a two-dimensional version of the modified Hasegawa-Wakatani (HW) model, which describes electrostatic resistive drift wave turbulence, the resistive coupling between vorticity and density does not act on the zonal components ($k_{y}=0$). It is the
Externí odkaz:
http://arxiv.org/abs/physics/0703274
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Autor:
Numata R; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Sun S; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Vaiyani D; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Janson CM; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Quartermain MD; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Shah M; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania., Banerjee A; Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania.
Publikováno v:
CASE (Philadelphia, Pa.) [CASE (Phila)] 2024 Apr 11; Vol. 8 (5), pp. 335-343. Date of Electronic Publication: 2024 Apr 11 (Print Publication: 2024).