Publications of André Genon
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See detailUse of a High-Temperature Superconducting Coil for Magnetic Energy Storage
Fagnard, Jean-François ULg; Crate, David; Jamoye, Jean-François et al

in Institute of Physics Conference Series (2006), 43

A high temperature superconducting magnetic energy storage device (SMES) has been realised using a 350 m-long BSCCO tape wound as a ''pancake'' coil. The coil is mounted on a cryocooler allowing ... [more ▼]

A high temperature superconducting magnetic energy storage device (SMES) has been realised using a 350 m-long BSCCO tape wound as a ''pancake'' coil. The coil is mounted on a cryocooler allowing temperatures down to 17.2 K to be achieved. The temperature dependence of coil electrical resistance R(T) shows a superconducting transition at T = 102.5 K. Measurements of the V(I) characteristics were performed at several temperatures between 17.2 K and 101.5 K to obtain the temperature dependence of the critical current (using a 1 uV/cm criterion). Critical currents were found to exceed 100 A for T < 30 K. An electronic DC-DC converter was built in order to control the energy flow in and out of the superconducting coil. The converter consists of a MOS transistor bridge switching at a 80 kHz frequency and controlled with standard Pulse Width Modulation (PWM) techniques. The system was tested using a 30 V squared wave power supply as bridge input voltage. The coil current, the bridge input and output voltages were recorded simultaneously. Using a 10 A setpoint current in the superconducting coil, the whole system (coil + DC-DC converter) can provide a stable output voltage showing uninterruptible power supply (UPS) capabilities over 1 s. [less ▲]

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See detailThe State of the Art in Multiple Object Tracking Under Occlusion in Video Sequences
Gabriel, Pierre; Verly, Jacques ULg; Piater, Justus ULg et al

in Advanced Concepts for Intelligent Vision Systems (2003)

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See detailAn Evolutive Software Environment for Teaching the Finite Element Method in Electromagnetism
Dular, Patrick ULg; Geuzaine, Christophe ULg; Genon, André ULg et al

in IEEE Transactions on Magnetics (1999), 35(3), 1682--1685

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See detailAn Evolutive Software Environment for Teaching the Finite Element Method in Electromagnetism
Dular, Patrick ULg; Geuzaine, Christophe ULg; Genon, André ULg et al

in Proceedings of the Eighth Biennal IEEE Conference on Electromagnetic Field Computation (1998)

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See detailAdaptive hp-refinement for finite element computations using nodal and edge elements
Remacle, J.-F.; Dular, Patrick ULg; Geuzaine, Christophe ULg et al

in Proceedings of the Electromagnetic Field Problems and Applications conference (ICEF 1996) (1997)

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See detailError estimation and mesh optimisation using error in constitutive relation for electromagnetic field computation
Remacle, Jean-François; Dular, Patrick ULg; Henrotte, François et al

in IEEE Transactions on Magnetics (1995), 31(6), 3587-3589

This paper presents a complete methodology to control the quality of electromagnetic field computation using the finite element method. An error estimate is built up using the error in the constitutive ... [more ▼]

This paper presents a complete methodology to control the quality of electromagnetic field computation using the finite element method. An error estimate is built up using the error in the constitutive relation. Proof is made that this estimate relates to the exact error in some cases. Both problems of control of quality and mesh optimisation are then discussed [less ▲]

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