Publications related to Hyperboloid structure

Roombots-Towards Decentralized Reconfiguration with Self-Reconfiguring Modular Robotic Metamodules

Auke Ijspeert, Mikaël Mayer, Alexander Spröwitz, Rico Möckel, Stéphane Bonardi, Pierre-André Mudry, Philippe Laprade

This paper presents our work towards a decentralized reconfiguration strategy for self-reconfiguring modular robots, assembling furniture-like structures from Roombots metamodules. We explore how reconfiguration by locomotion from a configuration A to a co ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

The continous wavelet transform on conic sections

Pierre Vandergheynst, Iva Bogdanova Vandergheynst

We review the coherent state or group-theoretical construction of the continuous wavelet transform (CWT) on the two-sphere. Next we describe the construction of a CWT on the upper sheet of a two-sheeted hyperboloid, emphasizing the similarities between the ...

2008

The continuous wavelet transform on conic sections

Pierre Vandergheynst, Iva Bogdanova Vandergheynst

We review the known construction of the continuous wavelet transform (CWT) on the two-sphere. Next we describe the construction of a CWT on the upper sheet of a two- sheeted hyperboloid, emphasizing the similarities between the two cases. Finally we give s ...

2008

Wavelets on the two-sphere and other conic sections

Pierre Vandergheynst

We review the construction of the continuous wavelet transform (CWT) on the two-sphere by two methods, the group-theoretical approach and the geometrical method based on conformal invariance. Then we discuss the discretization of the spherical CWT, obtaini ...

2007

Electromagnetic radiation from lightning return strokes to tall structures

Davide Pavanello

The study of the interaction of lightning electromagnetic fields with electrical systems and the design of appropriate protection strategies are generally based on statistical distributions of the lightning current measured at the channel base using either ...

EPFL2007

Nanostructuring of surfaces for optical and visual security applications using lithography techniques

Nowadays, the use of micro- or nano-patterned surfaces is well established in wide fields of science and in numerous applications in the industry. Periodic surface-relief profiles with dimensions in the wavelength range of the light can act as diffractive ...

Institut de Microtechnique, Université de Neuchâtel2007

Surface extraction and flattening for anatomical visualization

Laurent Saroul

In the last years, three-dimensional (3D) medical imaging techniques have taken an increasing importance in patient care and medical research. Volume images provide medical specialists with a direct access to the interior of a patient's body and reduce the ...

EPFL2006

Far-field-current relationship based on the TL model for lightning return strokes to elevated strike objects

Mario Paolone, Marcos Rubinstein, Davide Pavanello, José-Luis Bermudez

New general expressions relating lightning return stroke currents and far radiated electric and magnetic fields are proposed, taking into account the effect of an elevated strike object, whose presence is included as an extension to the transmission line ( ...

2005

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Jean-Philippe Thiran, Pierre Vandergheynst, Xavier Bresson, Iva Bogdanova Vandergheynst

We propose here some basic approaches to direct processing of the

360^o

-images as we take into consideration the geometry of each one. Obviously, the geometry of each of these images is a consequence of the geometry of the sensor's mirror used. This tech ...

2005

Motor comparison for circulation pumps

Yves Perriard, Marcel Jufer

In order to develop the new generation of motor pump (water) for heating or for cooling applications, a structural motor study was made to determine the best motor corresponding to the specifications. Stator structures, winding, supplying mode, pole number ...

Helsinki Univ. Technol2000

Hyperboloid structure

Graph Chatbot

Chat with Graph Search

Roombots-Towards Decentralized Reconfiguration with Self-Reconfiguring Modular Robotic Metamodules

The continous wavelet transform on conic sections

The continuous wavelet transform on conic sections

Wavelets on the two-sphere and other conic sections

Electromagnetic radiation from lightning return strokes to tall structures

Nanostructuring of surfaces for optical and visual security applications using lithography techniques

Surface extraction and flattening for anatomical visualization

Far-field-current relationship based on the TL model for lightning return strokes to elevated strike objects

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Motor comparison for circulation pumps

Surface extraction and flattening for anatomical visualization

The continuous wavelet transform on conic sections

Nanostructuring of surfaces for optical and visual security applications using lithography techniques

The continous wavelet transform on conic sections

Electromagnetic radiation from lightning return strokes to tall structures

Wavelets on the two-sphere and other conic sections

Roombots-Towards Decentralized Reconfiguration with Self-Reconfiguring Modular Robotic Metamodules

Far-field-current relationship based on the TL model for lightning return strokes to elevated strike objects

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Motor comparison for circulation pumps