Concept

Rayonnement du corps noir

Publications associées (138)

Contribution à l'étude des modes de rayonnement acoustique d'une structure

Noise radiated by different industrial structures that surround us in daily life are more and more considered as environmental pollution. Standards defining a tolerable sound level for each of these noise sources are regularly called into question and resp ...

EPFL2001

Potentialities of GaN-based microcavities grown on silicon substrates

Nicolas Grandjean

A bulk GaN half-wave (lambda /2) cavity is grown on Si(Ill) substrate by molecular beam epitaxy. It is embedded between twelve AlN/(Al,Ga)N quaterwave stacks and the silicon substrate, which acts as a metallic bottom mirror in the investigated wavelength r ...

2001

European high-power CW gyrotron development for ECRH systems

Stefano Alberti, Minh Quang Tran, Dávid Wágner

The development of high power CW gyrotrons for ECRH heating of fusion relevant plasmas has been in progress for several years in a joint collaboration between different European research institutes and an industrial partner. Two development are on going, a ...

2001

Fast bolometric measurements on the TCV tokamak

Ivo Furno, Xavier Llobet, Henri Weisen, Richard Pitts, Philippe Marmillod

The design and first results are presented from a bolometric diagnostic with high temporal resolution recently installed on the TCV tokamak. The system consists of two pinhole cameras viewing the plasma from above and below at the same toroidal location. E ...

1999

Development of a high-power THz radiation source for plasma diagnostics

Jean-Philippe Hogge, Markus Siegrist

A high power radiation source in the THz range with long pulse and narrow line width is required for diagnosing fusion type plasmas by collective Thomson scattering. Gyrotrons currently meet the requirements concerning power, pulse length and line width wh ...

1999

Experimental investigation of the effects of neon injection in TCV

Basil Duval, Yves Martin, Jean-Marc Moret, Ivo Furno, Henri Weisen, Jonathan Bryan Lister, Richard Pitts

This contribution describes the results of impurity seeding experiments using neon gas injection into the private fl zone of an ohmically heated TCV single null lower, deuterium fuelled, open divertor configuration. In these first experiments, neon has bee ...

1999

A seamless shape for HANIM compliant bodies

Daniel Thalmann

A standard for representing avatars in VRML worlds has been specified by the HANIM (Humanoid ANIMation) Working Group. Avatars based on these specifications are generally composed of a set of body surfaces which do not ensure that continuity between connec ...

1999

Room-temperature blue-green emission from InGaN/GaN quantum dots made by strain-induced islanding growth

Nicolas Grandjean

InGaN/GaN self-assembled quantum dots (QDs) were obtained by molecular beam epitaxy making use of the Stranski-Krastanov growth mode. Room-temperature photoluminescence (PL) energy of QDs was observed from 2.6 to 3.1 eV depending on the dot size. PL linewi ...

1999

On the analysis and construction of perfectly matched layers for the linearized Euler equations

Jan Sickmann Hesthaven

We present a detailed analysis of a recently proposed perfectly matched layer (PML) method for the absorption of acoustic waves. The split set of equations is shown to be only weakly well-posed, and ill-posed under small low order perturbations. This analy ...

ACADEMIC PRESS INC1998

Kilohertz quasi-periodic oscillation and atoll source states in 4U 0614+09

Demetri Psaltis

We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong (similar to 30% rms) band-limited noise with a cutoff frequency varying between 0.7 and 15 Hz in correlation with the X-ray flux, f(x). We observe two nonsimult ...

1997

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search