نتایج جستجو برای: d resistivity models as a resistive dome

تعداد نتایج: 14241826  

2000
D. A. Uzdensky R. M. Kulsrud

In this paper we present a two-dimensional, time dependent, numerical simulation of a reconnection current layer in incompressible resistive magnetohydrodynamics with uniform resistivity in the limit of very large Lundquist numbers. We use realistic boundary conditions derived consistently from the outside magnetic field, and we also take into account the effect of the back pressure from flow i...

2008
J. L. Fernandez-Hernando

The angular deflection of a 28.5 GeV electron beam passing off-axis between the jaws of a collimator, generating a transverse wakefield, were measured in End Station A (ESA) at SLAC. In total, fifteen different configurations of collimator geometry and material were tested: some were chosen for compatibility with previous measurements while others served to study the effect of geometry and tape...

Journal: :2D materials 2021

Abstract It becomes clear that, in two-dimensional (2D) materials-based devices, sheet resistances underneath electrodes change due to a metallic contact, leading substantial errors determining transfer length. Thus, the extraction of length and corresponding contact resistivity must be revisited assess performance 2D devices. In this study, we present three different approaches WSe 2 field eff...

2010
Yueqiang Liu A. Kirk E. Nardon

The plasma response to resonant magnetic perturbation RMP and nonresonant perturbation fields is computed within a linear, full toroidal, single-fluid resistive magnetohydrodynamic framework. The response of resonant harmonics depends sensitively on the plasma resistivity and on the toroidal rotation. The response of nonresonant harmonics is not sensitive to most of the plasma parameters, excep...

2013
François Mankessi Aubin R. Saya Frédéric Boudon Yann Guédon Marc Lartaud Jean-Luc Verdeil Olivier Monteuuis

Shoot apical meristem (SAM) domes derived from five different outdoor and in vitro sources of juvenile and mature Eucalyptus urophylla x Eucalyptus grandis akin genotypes were compared. Overall measurements of SAM dome height H and diameter D ranged from 2 to 35 μm and 20 to 80 μm, notwithstanding significant differences according to the various physiological origins of plant material investiga...

Journal: :Physical review. B, Condensed matter 1995
Hao Hu Ting

In a uniform flux-flow state of a type-II superconductor, (i) the resistivity tensor p,~ is independent of the dissipative transport current density J, and (ii) there exists a constraint on the relative orientation of J and the average Aux density B. These two simple general properties can already account for the Lorentz-force independence of the resistive transition in high-T superconductors f...

1996
M. G. Blamire W. E. Booij A. J. Pauza E. J. Tarte D. F. Moore

-We have considerably improved the properties of our electron beam damage junctions by using a smaller condenser aperture. The better defined beam results in a more concentrated damage profile. Consequently, the junctions have a more resistive barrier and higher current density compared to junctions fabricated with a large aperture. We can now obtain an IcRn value of 2 mV up to a temperature of...

2007
R. Oliveira V. Peskov F. Pietropaolo P. Picchi

We have developed a new design of a GEM-like detector with single-layer electrodes made of a resistive kapton. This detector can operate at gains close to 10 even in pure Ar and Ne and if transited to discharges at higher gains they, due to the high resistivity of electrodes, do not damage either the detector or the front-end electronics. Gains ~ 10 can be achieved in a cascaded mode of the ope...

2010
MAIRGARETH A. CHRISTMAN JOHN S. SPERRY

During vessel evolution in angiosperms, scalariform perforation plates with many slit-like openings transformed into simple plates with a single circular opening. The transition is hypothesized to have resulted from selection for decreased hydraulic resistance. Previously, additional resistivity of scalariform plates was estimated to be small – generally 10% or less above lumen resistivity – ba...

2011
Herman Wahid Hiep Nguyen-Duc

Since the last few decades, electrical methods have been widely used in geophysical surveying to obtain high-resolution information about subsurface conditions. Resistivity is an important parameter in judging the ground properties, especially detecting buried objects of anomalous conductivity. Electrical DC resistivity sounding is the commonly used technique to obtain the apparent 2-D resistiv...

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