Concept

Local reference frame

Related publications (80)

Ringin' the water bell: dynamic modes of curved fluid sheets

A water bell is formed by fluid flowing in a thin, coherent sheet in the shape of a bell. Experimentally, a water bell is created via the impact of a cylindrical jet on a flat surface. Its shape is set by the splash angle (the separation angle) of the resu ...

2015

Interactive real-time physics: An intuitive approach to form-finding and structural analysis for design and education

Gennaro Senatore

Real-time physics simulation has been extensively used in computer games, but its potential has yet to be fully realized in design and education. We present an interactive 3D physics engine with a wide variety of applications. In common with traditional FE ...

2015

Finite element differential forms on curvilinear cubic meshes and their approximation properties

Francesca Bonizzoni

We study the approximation properties of a wide class of finite element differential forms on curvilinear cubic meshes in n dimensions. Specifically, we consider meshes in which each element is the image of a cubical reference element under a diffeomorphis ...

Springer Verlag2015

Flow separation at convex banks in open channels

Koen Blanckaert

Laboratory experiments in an open channel bend provide insight into the physics of convex bank flow separation occurring in a variety of channel configurations, including confluences and bifurcations. The edge of the zone of flow separation is characterize ...

Cambridge Univ Press2015

Method to determine a direction and amplitude of a current velocity estimate of a moving device

Dario Floreano, Jean-Christophe Zufferey, Adrien Briod

A new method for the estimation of ego-motion (the direction and amplitude of the velocity) of a mobile device comprising optic-flow and inertial sensors (hereinafter the apparatus). The velocity is expressed in the apparatus's reference frame, which is mo ...

2014

Low-temperature Collisions between Neutral Molecules in Merged Molecular Beams

Andreas Osterwalder, Justinas Jankunas, Benjamin Bertsche

We have developed an experiment for the investigation of neutral molecular collisions in the gas phase at temperatures as low as 100 mK. These low temperatures are obtained by merging two supersonic expansions, using an electric and a magnetic guide, and b ...

Schweizerische Chemische Gesellschaft2014

Recovering Badly Exposed Objects From Digital Photos Using Internet Images

Sabine Süsstrunk, Stefan Winkler

In this paper we consider the problem of clipped-pixel recovery over an entire badly exposed image region, using two correctly exposed images of the scene that may be captured under different conditions. The first reference image is used to recover texture ...

2014

Breaking Size-Segregation Waves in Granular Avalanches

Christophe Ancey, Kasper van der Vaart

We experimentally prove the existence of the theoretically predicted breaking size-segregation wave within a binary granular avalanche. This complex structure involves the recirculation of particles through a pattern of shocks and rarefaction waves, and ca ...

2014

Breaking Size-Segregation Waves in Granular Avalanches

Christophe Ancey, Kasper van der Vaart

2014

Stride count and frequency measured with a wrist-worn inertial sensor

Kamiar Aminian, Benedikt Fasel, Cyntia Duc

This study proposes three simple approaches to estimate the stride count and frequency during walking and running using an inertial measurement system on the wrist. The approaches were based on a time-domain, frequency-domain and autocorrelation analysis, ...

2014

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