Results 61 to 70 of about 126,488 (157)

On the "Universal" Quantum Area Spectrum

open access: yes, 2009
There has been much debate over the form of the quantum area spectrum for a black hole horizon, with the evenly spaced conception of Bekenstein having featured prominently in the discourse.
A. J. M. MEDVED   +2 more
core   +2 more sources

All-optical $\mathcal{PT}$-symmetric amplitude to phase modulator

open access: yes, 2015
We study electromagnetic field propagation through a planar three-waveguide coupler with linear gain and loss, in a configuration that is the optical analog of a quantum $\mathcal{PT}$-symmetric system, and provide its closed-form analytic propagator. At
Gutiérrez, Oscar Ignacio Zaragoza   +2 more
core   +1 more source

A survey of the state of the art and focused research in range systems, task 2 [PDF]

open access: yes
Many communication, control, and information processing subsystems are modeled by linear systems incorporating tapped delay lines (TDL). Such optimized subsystems result in full precision multiplications in the TDL. In order to reduce complexity and cost
Yao, K.
core   +1 more source

Turbulent resistivity evaluation in MRI generated turbulence

open access: yes, 2009
(abriged) MRI turbulence is a leading mechanism for the generation of an efficient turbulent transport of angular momentum in an accretion disk through a turbulent viscosity effect.
Balbus   +35 more
core   +3 more sources

Calculation of two-dimensional inlet flow fields in a supersonic free stream by an implicit marching code with nonorthogonal mesh generation: User's manual [PDF]

open access: yes
An implicit, shock-capturing finite-difference code which is used to calculate two-dimensional inlet flow fields in a supersonic free stream is explained.
Biringen, S. H., Mcmillan, O. J.
core   +1 more source

Eddy currents in a conducting sphere [PDF]

open access: yes
This report analyzes the eddy current induced in a solid conducting sphere by a sinusoidal current in a circular loop. Analytical expressions for the eddy currents are derived as a power series in the vectorial displacement of the center of the sphere ...
Bergman, John, Hestenes, David
core   +1 more source

Mechanical metamaterials and beyond. [PDF]

open access: yesNat Commun, 2023
Jiao P   +4 more
europepmc   +1 more source

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