Publications associées à Adaptation d'impédances

Time domain room acoustic simulations using the spectral element method

This paper presents a wave-based numerical scheme based on a spectral element method, coupled with an implicit-explicit Runge-Kutta time stepping method, for simulating room acoustics in the time domain. The scheme has certain features which make it highly ...

ACOUSTICAL SOC AMER AMER INST PHYSICS2019

Engineered acoustic mismatch for anchor loss control in contour mode resonators

Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Andrea Lozzi

Improving the quality factor (Q) of electromechanical resonators is of paramount importance for different applications, ranging from RF filtering to sensing. In this paper, we present a modified fabrication process flow for contour mode resonators to simul ...

2019

Urine-Contactless Device to Empty Bladders: an Ex-Vivo Proof-of-Concept Study in Porcine Bladders

Yves Perriard, Yoan René Cyrille Civet, Francesco Clavica

Current treatments for underactive bladder (UAB) have negative side effects, such as urinary tract infections, mainly because devices used for bladder emptying are in direct contact with urine (e.g. permanent or intermittent catheterisation). Moreover, mos ...

Wiley2019

Wave-conversion active liner based on generalized Snell-Descartes law

Hervé Lissek

The Cremer’s impedance theoretical framework has been used for years to optimally design acousticliners for the aeronautic industry, such as honeycomb liners. This passive mean of sound absorption,which consists in rather thin (a few centimeters) honeycomb ...

Canadian Acoustical Association2019

The JET upgraded toroidal Alfven Eigenmode Diagnostic System

Ambrogio Fasoli, Duccio Testa, Patrick Blanchard

The Alfven Eigenmode Active Diagnostic system (AEAD) has undergone a major upgrade and redesign to provide a state-of-the-art excitation and real-time detection system for JET. The new system consists of individual 4 kW amplifiers allowing for increased cu ...

2019

A Comparison of Three Feeding Networks for CubeSat L/S-dual-band Stacked-Patch Antennas

Anja Skrivervik, Miroslav Veljovic

The CubeSat nanosatellite standard puts strict limitations on the antenna volume, resulting in a low impedance and axial-ratio (AR) bandwidths of patch antennas. The AR of a circularly polarized patch antenna can be improved with the introduction of a dedi ...

IEEE2019

Circuit Quantum Electrodynamics with superconductor-semiconductor hybrid systems

Pasquale Scarlino, Jann Hinnerk Ungerer

Semiconductor qubits rely on the control of charge and spin degrees of freedom of electrons or holes confined in quantum dots (QDs). Typically, semiconductor qubit-qubit coupling is short range, effectively limiting qubit distance to the spatial extent of ...

2019

Tests and developments of a long-pulse high-power 170 GHz absorbing matched load

Timothy Goodman, Stefano Alberti, Jean-Philippe Hogge, Damien Fasel, Francisco Sanchez, Ioannis Pagonakis

The future EC systems will consist of several gyrotron sources providing MW-level millimeter wave power at a frequency around or above 170 GHz. The development of matched loads is necessary to test the new sources, the components for the transmission lines ...

ELSEVIER SCIENCE SA2019

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Adaptation d'impédances

Time domain room acoustic simulations using the spectral element method

Engineered acoustic mismatch for anchor loss control in contour mode resonators

Modeling and Design Optimization of Medium Frequency Transformers for Medium-Voltage High-Power Converters

Urine-Contactless Device to Empty Bladders: an Ex-Vivo Proof-of-Concept Study in Porcine Bladders

Dielectric-Loaded Conformal Microstrip Antennas for Versatile In-Body Applications

Wave-conversion active liner based on generalized Snell-Descartes law

The JET upgraded toroidal Alfven Eigenmode Diagnostic System

A Comparison of Three Feeding Networks for CubeSat L/S-dual-band Stacked-Patch Antennas

Circuit Quantum Electrodynamics with superconductor-semiconductor hybrid systems

Tests and developments of a long-pulse high-power 170 GHz absorbing matched load

Graph Chatbot

Chattez avec Graph Search

Modeling and Design Optimization of Medium Frequency Transformers for Medium-Voltage High-Power Converters

Wave-conversion active liner based on generalized Snell-Descartes law

Dielectric-Loaded Conformal Microstrip Antennas for Versatile In-Body Applications

Engineered acoustic mismatch for anchor loss control in contour mode resonators

The JET upgraded toroidal Alfven Eigenmode Diagnostic System

Circuit Quantum Electrodynamics with superconductor-semiconductor hybrid systems

Time domain room acoustic simulations using the spectral element method

Urine-Contactless Device to Empty Bladders: an Ex-Vivo Proof-of-Concept Study in Porcine Bladders

A Comparison of Three Feeding Networks for CubeSat L/S-dual-band Stacked-Patch Antennas

Tests and developments of a long-pulse high-power 170 GHz absorbing matched load