Publications associées à Propagation des ondes radio

Amplifying Dynamic Nuclear Polarization of Frozen Solutions by Incorporating Dielectric Particles

David Lyndon Emsley, Aaron James Rossini, Dominik Józef Kubicki

There is currently great interest in understanding the limits on NMR signal enhancements provided by dynamic nuclear polarization (DNP), and in particular if the theoretical maximum enhancements can be achieved. We show that over a 2-fold improvement in cr ...

American Chemical Society2014

Elasto-Dynamic Behavior Of A 2D Square Lattice With Entrained Fluid

Alessandro Spadoni

Numerical investigation of wave propagation in a cellular solid with closed cells configuration and entrained fluid showed an existence of two types of pressure waves, which have opposite polarization and have different phase and group velocities. This is ...

Int Center Numerical Methods Engineering2014

Elastodynamics of a Two-Dimensional Square Lattice With Entrained Fluid-Part I: Comparison With Biot's Theory

Alessandro Spadoni, Vladimir Dorodnitsyn

In the present paper, the performance of Biot's theory is investigated for wave propagation in cellular and porous solids with entrained fluid for configurations with well-known drained (no fluid) mechanical properties. Cellular solids differ from porous s ...

Asme2014

Wave dispersion in periodic post-buckled structures

Alessandro Spadoni, Florian Paul Robert Maurin

Wave propagation in pinned-supported, post-buckled beams can be described with the Korteweg de Vries (KdV) equation. Finite-element simulations however show that the KdV is applicable only to post-buckled beams with strong pre-compression. For weak and mod ...

Elsevier2014

A tapered CRLH mushroom-like leaky wave antenna with reduced sidelobe level

Julien Perruisseau-Carrier, Juan Sebastian Gomez Diaz

A tapered composite right/left-handed (CRLH) leaky-wave antenna (LWA) with reduced sidelobe level (SLL) is presented. A cosine taper design is achieved by simultaneously modifying the longitudinal period and the slot width of the mushroom CRLH structure. T ...

2014

Distributed machine learning in networks by consensus

Martin Hasler, Leonidas Georgopoulos

We propose an algorithm to learn from distributed data on a network of arbitrarily connected machines without exchange of the data-points. Parts of the dataset are processed locally at each machine, and then the consensus communication algorithm is employe ...

Elsevier2014

Computational generation of the Purkinje network driven by clinical measurements: The case of pathological propagations

Alfio Quarteroni, Fabio Nobile, Christian Vergara, Elena Faggiano

To properly describe the electrical activity of the left ventricle, it is necessary to model the Purkinje fibers, responsible for the fast and coordinate ventricular activation, and their interaction with the muscular propagation. The aim of this work is t ...

2014

Investigation of ultra-thin waveguide arrays on a Bloch surface wave platform

Hans Peter Herzig, Elsie Barakat, Libo Yu

Ultra-thin polymer optical waveguide couplers for integrated optics based on Bloch surface waves (BSWs) are presented. Desirable BSW guiding properties, such as low loss and long propagation distance, are observed. The waveguide thickness is on the order o ...

Optical Society of America2014

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Propagation des ondes radio

Amplifying Dynamic Nuclear Polarization of Frozen Solutions by Incorporating Dielectric Particles

Elasto-Dynamic Behavior Of A 2D Square Lattice With Entrained Fluid

Elastodynamics of a Two-Dimensional Square Lattice With Entrained Fluid-Part I: Comparison With Biot's Theory

Wave dispersion in periodic post-buckled structures

Analysis and application of the nodal discontinuous Galerkin method for wave propagation in metamaterials

A tapered CRLH mushroom-like leaky wave antenna with reduced sidelobe level

Distributed machine learning in networks by consensus

Tolpa For Mm-Wave: A Wideband Low Profile, Omnidirectional Vertically Polarized Antenna

Computational generation of the Purkinje network driven by clinical measurements: The case of pathological propagations

Investigation of ultra-thin waveguide arrays on a Bloch surface wave platform

Graph Chatbot

Chattez avec Graph Search

Elasto-Dynamic Behavior Of A 2D Square Lattice With Entrained Fluid

Tolpa For Mm-Wave: A Wideband Low Profile, Omnidirectional Vertically Polarized Antenna

A tapered CRLH mushroom-like leaky wave antenna with reduced sidelobe level

Distributed machine learning in networks by consensus

Elastodynamics of a Two-Dimensional Square Lattice With Entrained Fluid-Part I: Comparison With Biot's Theory

Analysis and application of the nodal discontinuous Galerkin method for wave propagation in metamaterials

Investigation of ultra-thin waveguide arrays on a Bloch surface wave platform

Amplifying Dynamic Nuclear Polarization of Frozen Solutions by Incorporating Dielectric Particles

Wave dispersion in periodic post-buckled structures

Computational generation of the Purkinje network driven by clinical measurements: The case of pathological propagations