Design and Control of an Indoor Coaxial Helicopter

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Toward broadband electroacoustic resonators through optimized feedback control strategies

Hervé Lissek, Romain Boulandet

This paper presents a methodology for the design of broadband electroacoustic resonators for low-frequency room equalization. An electroacoustic resonator denotes a loudspeaker used as a membrane resonator, the acoustic impedance of which can be modified t ...

Elsevier2014

Spatial Acoustic Signal Processing

Mihailo Kolundzija

A sound field on a line or in a plane has an effectively limited spatial bandwidth determined by the temporal frequency. Similar can be said for sound fields from far-field sources when analyzed on circular and spherical apertures. Namely, for a given freq ...

EPFL2012

Comparison of hybrid production planning and control strategies for supply chain management: A multi-criteria approach

Naoufel Cheikhrouhou

In most of the cases, a supply chain management strategy addressing material flows control consists of push, pull or hybrid controlled system. This paper presents the development of a multi-criteria decision making approach for the comparison of hybrid str ...

2012

A new approach to plasma profile control in ITER

Jonathan Bryan Lister, Sun Hee Kim

Advanced tokamak operation in ITER, such as the steady-state and hybrid modes, requires an active realtime feedback control of plasma profiles to achieve the advanced regimes for sustained operation. In this work, we have explored a potentially robust cont ...

Elsevier Science Sa2012

Baffled Circular Loudspeaker Array With Broadband High Directivity

Martin Vetterli, Mihailo Kolundzija, Christof Faller

Super-directional loudspeaker arrays can be used to achieve high directivity in a limited low-frequency range. As opposed to microphone arrays, the distance between the loudspeakers has to be relatively large, resulting in aliasing starting at relatively l ...

2010

Comparison of Control Strategies for Maximizing Energy in a Supercapacitor Storage Subsystem

Alfred Rufer, Philippe Barrade

A storage supercapacitor subsystem is studied for insertion in a series hybrid electric vehicle (Fig. 1). This subsystem is composed of a supercapacitor bank and a braking resistor used when the supercapacitor voltage is at its maximum value. Generally, wh ...

2009

Structural behavior and durability of multifunctional fiber-reinforced polymer components

Florian Riebel

In the context of sustainable development, building insulation represents a major concern as a means of increasing energy efficiency. In order to comply with new norms such as the Passive House standard, locations where load-bearing components must penetra ...

EPFL2006

Maximum Control Structure of a Series Hybrid Electric Vehicle using Supercapacitor

Philippe Barrade

The main problem with Hybrid Electric Vehicles (HEV) is the management of batteries. We suggest to replace the batteries by an energy storage ystem made of supercapacitors on a series HEV with two traction drive. A maximum Control Structure (MCS) of such a ...

2005

Design and Control of a Supercapacitor Storage System for Traction Applications

Alfred Rufer, Philippe Barrade

The storage system in this paper is made of supercapacitors. The main goal is to ensure an efficient energy management in a series hybrid vehicle, even if braking resistors are still needed. Design considerations are discussed. In particular the influence ...

2005

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