Publications related to Measurement-based Run-to-run Optimization of a Batch Reaction-distillation system

Stability analysis and experimental validation of a control strategy for autonomous operation of distributed generation units

This paper presents stability analysis of a distributed generation (DG) controller, in an islanded mode, based on the Mapping Theorem and the Zero Exclusion Condition, and validates the results based on a laboratory scale experimental setup. The DG unit is ...

2010

An optimal first-order solver for the TV-$L_1$ optical flow problem

Pierre Vandergheynst, Gilles Puy, Emmanuel D'Angelo

In this study, we address the problem of computing efficiently a dense optical flow between two images under a total variation (TV) regularization and an

L_1

norm data fidelity constraint using a variational method. We build upon Nesterov's framework for ...

2010

Frequency synchronization in a random oscillator network

Martin Hasler

In this paper we study the transition from incoherence to coherence in large network of arbitrary coupled, heterogeneous, continuous-time dynamical systems (phase oscillators). We analytically study a generalized Kuramoto model by the instrumentality of or ...

2009

Characterization of natural sand under complex dynamic loading

Laurent Vulliet, Emilie Rascol

An experimental study, conducted with an advanced triaxial press, evaluates the effect of different loading paths on the dynamic behavior of natural Swiss sand. Emphasis is put on comparison between the dynamic parameters evaluated in a single loading (wit ...

Taylor & Francis Group2009

Measurement-based Optimization of Batch Processes: Meeting Terminal Constraints On-line via Trajectory Following

Dominique Bonvin, Carsten Welz

The context of this paper is the use of process measurements to optimize batch processes in the presence of uncertainty. The optimal solution consists of (i) keeping certain path and terminal constraints active and (ii) driving the sensitivities to zero. I ...

2008

Joint Network and Rate Allocation for Simultaneous Wireless Applications

Pascal Frossard, Dan Jurca

We address the problem of rate allocation and network/path selection for multiple users, running simultaneous applications over multiple parallel access networks. Our joint optimization problem consists of finding the appropriate application rate allocatio ...

2007

Modeling and optimization of ultrasonic linear motors

José Fernandez Lopez

Ultrasonic motors have received much attention these last years, in particular with regard to their modeling and their design principle. Their operating principle is based on piezoelectric ceramics that convert electrical energy into mechanical energy in t ...

EPFL2006

Geometry-enhanced magnetoresistance of narrow Au∕InAs hybrid structures incorporating a two-dimensional electron system

Dirk Grundler

We have investigated the magnetoresistance of metal-semiconductor hybrid structures at 4.2 K. The devices consisted of polycrystallineAu and an InAs-based heterostructure that hosted a high-mobility two-dimensional electron system. We have varied the elect ...

American Institute of Physics2006

Finite-element modelling of superconductors in over-critical regime with temperature dependent resistivity

Francesco Grilli, Joseph Duron, Bertrand Dutoit

In this paper, we present a new numerical model, in which both the thermal and the electromagnetic aspects of the over-critical current regime of HTS materials are taken into account. The electromagnetic and thermal equations have been implemented in finit ...

2006

Design optimization analysis of a standing wave ultrasonic linear actuator

Yves Perriard, José Fernandez Lopez, Yann Ruffieux

The design, properties and optimization of an ultrasonic actuator are presented. Numerical modeling has been carried out and simulations with the FEM Ansys software have been realized. To avoid performing a large number of simulations, input parameters lik ...

2005

Measurement-based Run-to-run Optimization of a Batch Reaction-distillation system

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Stability analysis and experimental validation of a control strategy for autonomous operation of distributed generation units

An optimal first-order solver for the TV-$L_1$ optical flow problem

Frequency synchronization in a random oscillator network

Characterization of natural sand under complex dynamic loading

Measurement-based Optimization of Batch Processes: Meeting Terminal Constraints On-line via Trajectory Following

Joint Network and Rate Allocation for Simultaneous Wireless Applications

Modeling and optimization of ultrasonic linear motors

Geometry-enhanced magnetoresistance of narrow Au∕InAs hybrid structures incorporating a two-dimensional electron system

Finite-element modelling of superconductors in over-critical regime with temperature dependent resistivity

Design optimization analysis of a standing wave ultrasonic linear actuator

An optimal first-order solver for the TV-$L_1$ optical flow problem

Frequency synchronization in a random oscillator network

Stability analysis and experimental validation of a control strategy for autonomous operation of distributed generation units

Measurement-based Optimization of Batch Processes: Meeting Terminal Constraints On-line via Trajectory Following

Geometry-enhanced magnetoresistance of narrow Au∕InAs hybrid structures incorporating a two-dimensional electron system

Finite-element modelling of superconductors in over-critical regime with temperature dependent resistivity

Joint Network and Rate Allocation for Simultaneous Wireless Applications

Modeling and optimization of ultrasonic linear motors

Design optimization analysis of a standing wave ultrasonic linear actuator

Characterization of natural sand under complex dynamic loading