Publications related to Simulating background shear flow in local gyrokinetic simulations

A vector field method on the distorted Fourier side and decay for wave equations with potentials

We study the Cauchy problem for the one-dimensional wave equation

\partial_t^2 u(t,x)-\partial_x^2 u(t,x)+V(x)u(t,x)=0.

The potential

V

is assumed to be smooth with asymptotic behavior

V(x)\sim -\tfrac14 |x|^{-2}\mbox{ as } |x|\to \infty.

...

2016

Closed fringe demodulation using phase decomposition by Fourier basis functions

Pramod Rastogi, Rishikesh Dilip Kulkarni

We report a new technique for the demodulation of a closed fringe pattern by representing the phase as a weighted linear combination of a certain number of linearly independent Fourier basis functions in a given row/column at a time. A state space model is ...

2016

Towards More Accurate and Efficient Beamformed Radio Interferometry Imaging

Matthieu Martin Jean-André Simeoni

The Square Kilometre Array (SKA) will form the largest radio telescope ever built, generating on the order of one terabyte of data per second. To reduce the data flow sent to the central processor, hierarchical designs have been proposed: the data is prima ...

2015

Design of Steerable Wavelets to Detect Multifold Junctions

Michaël Unser, Zsuzsanna Püspöki, Cédric René Jean Vonesch, Virginie Sophie Uhlmann

We propose a framework for the detection of junctions in images. Although the detection of edges and key points is a well examined and described area, the multiscale detection of junction centers, especially for odd orders, poses a challenge in pattern ana ...

IEEE2015

Fast live cell imaging at nanometer scale using annihilating filter based low rank Hankel matrix approach

Michaël Unser, Suliana Manley, Lina Carlini

Localization microscopy such as STORM/PALM can achieve a nanometer scale spatial resolution by iteratively localizing fluorescence molecules. It was shown that imaging of densely activated molecules can accelerate temporal resolution which was considered a ...

Spie-Int Soc Optical Engineering2015

A twisted Motohashi formula and Weyl-subconvexity for -functions of weight two cusp forms

Ian Nicholas Petrow

We derive a Motohashi-type formula for the cubic moment of central values of -functions of level cusp forms twisted by quadratic characters of conductor , previously studied by Conrey and Iwaniec and Young. Corollaries of this formula include Weyl-subconve ...

Springer Verlag2015

Method and system for computing Fourier series coefficients for mask layouts using FFT

Paul Hurley, Robin Scheibler, Krzysztof Kryszczuk

A method and system for computing Fourier coefficients for a Fourier representation of a mask transmission function for a lithography mask. The method includes: sampling a polygon of a mask pattern of the lithography mask to obtain an indicator function wh ...

United States Patent and Trademark Office2013

Fast continuous Fourier and Haar transforms of rectilinear polygons from very-large-scale integration layouts

Paul Hurley, Robin Scheibler, Amina Chebira

We propose two new fast algorithms for the computation of the continuous Fourier series and the continuous Haar transform of rectilinear polygons such as those of mask layouts in optical lithography. These algorithms outperform their discrete counterparts ...

2013

Fourier Approximation Of Symmetric Ideal Knots

Henryk Gerlach, Mathias Carlen

Enforcing a specific symmetry group on a curve, knotted or not, is not trivial using standard interpolations such as polygons or splines. For a prescribed symmetry group we present a symmetrization process based on a Fourier description of a knot. The pres ...

2012

Parallel filtering in global gyrokinetic simulations

Laurent Villard, Stephan Brunner, Trach-Minh Tran, Alberto Bottino, Sébastien Jolliet, Ben McMillan, Paolo Angelino, Thibaut Vernay

In this work, a Fourier solver [B.F. McMillan, S. Jolliet, A. Bottino, P. Angelino, T.M. Tran, L Villard, Comp. Phys. Commun. 181 (2010) 7151 is implemented in the global Eulerian gyrokinetic code GT5D [Y. Idomura, H. Urano, N. Aiba, S. Tokuda, Nucl. Fusio ...

Elsevier2012

Simulating background shear flow in local gyrokinetic simulations

Graph Chatbot

Chat with Graph Search

A vector field method on the distorted Fourier side and decay for wave equations with potentials

Closed fringe demodulation using phase decomposition by Fourier basis functions

Towards More Accurate and Efficient Beamformed Radio Interferometry Imaging

Design of Steerable Wavelets to Detect Multifold Junctions

Fast live cell imaging at nanometer scale using annihilating filter based low rank Hankel matrix approach

A twisted Motohashi formula and Weyl-subconvexity for -functions of weight two cusp forms

Method and system for computing Fourier series coefficients for mask layouts using FFT

Fast continuous Fourier and Haar transforms of rectilinear polygons from very-large-scale integration layouts

Fourier Approximation Of Symmetric Ideal Knots

Parallel filtering in global gyrokinetic simulations

Towards More Accurate and Efficient Beamformed Radio Interferometry Imaging

A vector field method on the distorted Fourier side and decay for wave equations with potentials

Closed fringe demodulation using phase decomposition by Fourier basis functions

Fast live cell imaging at nanometer scale using annihilating filter based low rank Hankel matrix approach

A twisted Motohashi formula and Weyl-subconvexity for -functions of weight two cusp forms

Fast continuous Fourier and Haar transforms of rectilinear polygons from very-large-scale integration layouts

Parallel filtering in global gyrokinetic simulations

Method and system for computing Fourier series coefficients for mask layouts using FFT

Fourier Approximation Of Symmetric Ideal Knots

Design of Steerable Wavelets to Detect Multifold Junctions