Results 1 to 10 of about 751,600 (289)

Multifidelity Comparison of Supersonic Wave Drag Prediction Methods Using Axisymmetric Bodies

open access: yesAerospace
Low-fidelity analytic and computational wave drag prediction methods assume linear aerodynamics and small perturbations to the flow. Hence, these methods are typically accurate for only very slender geometries.
Troy Abraham   +2 more
doaj   +1 more source

The pion and proton mass in finite volume

open access: yes, 2005
We calculate the finite volume effects for the pion and nucleon mass. For the pion mass we present the results of a full two-loop calculation in chiral perturbation theory.
Ali Khan   +21 more
core   +2 more sources

Fast Adaptive Sparse Iterative Reweighted Super-Resolution Method for Forward-Looking Radar Imaging

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Recently, a sparse super-resolution method based on $L_{1}$ iterative reweighted norm (IRN) has been proposed to improve the azimuth resolution of forward-looking radar.
Jiawei Luo   +6 more
doaj   +1 more source

Rational analogs of projective planes

open access: yes, 2014
In this paper, we study the existence of high-dimensional, closed, smooth manifolds whose rational homotopy type resembles that of a projective plane. Applying rational surgery, the problem can be reduced to finding possible Pontryagin numbers satisfying
Su, Zhixu
core   +1 more source

Computational implementation of the Kubo formula for the static conductance: application to two-dimensional quantum dots

open access: yes, 1999
Kubo formula is used to get the d.c conductance of a statistical ensemble of two-dimensional clusters of the square lattice in the presence of standard diagonal disorder, a uniform magnetic field and random magnetic fluxes.
Altshuler   +15 more
core   +1 more source

Numerical Calculation of Whole-Body Exposure to Beams From mmWave Base Stations Using Superposition of Spherical Waves

open access: yesIEEE Access
Whole-body exposure to beams from fifth-generation (5G) base stations is numerically studied. Since the base stations have the capability for beamforming, the assessment of exposure to all possible beams from such stations must be performed to find the ...
Yujiro Kushiyama, Tomoaki Nagaoka
doaj   +1 more source

Formulas for series computations

open access: yes, 1991
We describe an algorithm that computes polynomials whose roots are the coefficients of any specific order of the Laurent series of a rational function. The algorithm uses only rational operations in the coefficient field of the function. This allows us to compute with the principal parts of the Laurent series, in particular with the residues of the ...
openaire   +2 more sources

Forward-start options in the Barndorff-Nielsen-Shephard Model [PDF]

open access: yes
We derive a semi-analytical formula for pricing forward-start options in the Barndorff-Nielsen- Shephard model. In terms of computational time, this formula is equivalent to one-dimensional integration.
Keller-Ressel, Martin, Kilin, Fiodar
core  

Area of Polygons in Hyperbolic Geometry

open access: yes, 2004
Consider the Poincare disc model for hyperbolic geometry. In this paper, a convenient computational formula is developed along with an aesthetic geometric interpretation.
Bailey, Benjamin Aaron
core   +1 more source

A Short Note on Generating a Random Sample from Finite Mixture Distributions

open access: yesAxioms
Computational statistics is a critical skill for professionals in fields such as data science, statistics, and related disciplines. One essential aspect of computational statistics is the ability to simulate random variables from specified probability ...
Luai Al-Labadi, Anna Ly
doaj   +1 more source

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