Publications related to Complex plane

Analytical Solution for Rotor Eddy-Current Losses in a Slotless Permanent-Magnet Motor: The Case of Current Sheet Excitation

We present an analytical solution for the magnetic field, induced eddy currents, and the corresponding losses generated in the rotor of a slotless permanent-magnet (PM) motor. The field excitation is a current sheet placed at the stator interior surface. T ...

2008

Feedback loop conception methodology for step-down continuous switching DC/DC converter

Maher Kayal, Stefano Michelis

The stability and the dimensioning of a step-down switching voltage regulator feedback loop remain a complex task. An analytical approach allows dimensioning of all the components, strongly facilitating this task. In this article, a mathematical analysis i ...

2008

Experiences in Using XBeerGame Virtual Gaming for Learning Supply Chain Management

Patrick Jermann, Rémy Glardon, Anne-Sylvie Borter, Souleïman Naciri, Min-Jung Yoo

Supply chain management (SCM), due to the large scale and wide scope of the multi-partner supply networks and to the high complexity of the dynamically occuring phenomena, is a difficult topic to teach. Conventional teaching approaches do not allow the stu ...

Academic Conferences Ltd, Curtis Farm, Kidmore End, Nr Reading, Rg4 9Ay, England2008

Robust fixed-order H infinity Controller Design for Spectral Models by Convex Optimization

Alireza Karimi, Roland Longchamp, Gorka Galdos Sanz de Galdeano

A new approach for robust fixed-order

H_\infty

controller design by convex optimization is proposed. Linear time-invariant single-input single-output systems represented by a finite set of complex values in the frequency domain are considered. It is show ...

IEEE2008

Convexly independent subsets of the Minkowski sum of planar point sets

János Pach, Friedrich Eisenbrand, Thomas Rothvoss

Let P and Q be finite sets of points in the plane. In this note we consider the largest cardinality of a subset of the Minkowski sum S ⊆ P⊕Q which consist of convex independent points. We show that, if P and Q contain at most n points, then |S| = O(n^(4/3) ...

American Mathematical Society2008

PDE constrained optimization and design of frozen mode crystals

Jan Sickmann Hesthaven

We explore the use of PDE constrained nonlinear optimization techniques to optimize and design electromagnetic crystals which exhibit frozen mode behavior. This is characterized by Van Hove singularities in the dispersion relation, e.g., stationary reflect ...

GLOBAL SCIENCE PRESS2008

Process engineering and failure analysis of MEMS and MOEMS by Digital Holography Microscopy (DHM)

Mihai Adrian Ionescu, Christian Depeursinge, Etienne Cuche, Frédéric Montfort, Nicolas Aspert, Alexander Mehdaoui

Process engineering and failure analysis of MEMS and MOEMS require static and dynamical characterization of both their in-plane and out of plane response to an excitation. A remarkable characteristic of Digital Holography Microscopes (DHM) is the extremely ...

SPIE2007

Inversion de Fourier ponctuelle

Emanuel Enrico Seifert

Let f be an integrable function on RN, a a point in RN and B a complex number. If the mean value of f on the sphere of centre a and radius r tends to B when r tends to 0, we show that the Fourier integral at a of f is summable to B in Cesàro means of order ...

EPFL2007

Complex data processing: fast wavelet analysis on the sphere

Yves Wiaux, Jason Douglas McEwen

In the general context of complex data processing, this paper reviews a recent practical approach to the continuous wavelet formalism on the sphere. This formalism notably yields a correspondence principle which relates wavelets on the plane and on the sph ...

2007

Nonlinear dynamics of flute modes and self-organization phenomena in turbulent magnetized plasma

Costanza Zucca

A two-fields model that self-consistently describes the coupled, spectral dynamics of flute mode large-scale flows turbulence is presented. This model has a characteristic form of a 'predator-prey' system, in which the populations of flute mode quanta (pre ...

2007

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Analytical Solution for Rotor Eddy-Current Losses in a Slotless Permanent-Magnet Motor: The Case of Current Sheet Excitation

Feedback loop conception methodology for step-down continuous switching DC/DC converter

Experiences in Using XBeerGame Virtual Gaming for Learning Supply Chain Management

Robust fixed-order H infinity Controller Design for Spectral Models by Convex Optimization

Convexly independent subsets of the Minkowski sum of planar point sets

PDE constrained optimization and design of frozen mode crystals

Process engineering and failure analysis of MEMS and MOEMS by Digital Holography Microscopy (DHM)

Inversion de Fourier ponctuelle

Complex data processing: fast wavelet analysis on the sphere

Nonlinear dynamics of flute modes and self-organization phenomena in turbulent magnetized plasma

Analytical Solution for Rotor Eddy-Current Losses in a Slotless Permanent-Magnet Motor: The Case of Current Sheet Excitation

Feedback loop conception methodology for step-down continuous switching DC/DC converter

Robust fixed-order H infinity Controller Design for Spectral Models by Convex Optimization

Experiences in Using XBeerGame Virtual Gaming for Learning Supply Chain Management

PDE constrained optimization and design of frozen mode crystals

Inversion de Fourier ponctuelle

Complex data processing: fast wavelet analysis on the sphere

Nonlinear dynamics of flute modes and self-organization phenomena in turbulent magnetized plasma

Convexly independent subsets of the Minkowski sum of planar point sets

Process engineering and failure analysis of MEMS and MOEMS by Digital Holography Microscopy (DHM)