Concept
Geoid
Related publications (11)
Umbrella Meshes: Elastic Mechanisms for Freeform Shape Deployment
Mark Pauly, Florin Isvoranu, Uday Kusupati, Tian Chen, Yingying Ren, Davide Pellis
We present a computational inverse design framework for a new class of volumetric deployable structures that have compact rest states and deploy into bending-active 3D target surfaces. Umbrella meshes consist of elastic beams, rigid plates, and hinge joint ...
2022Fourier Collocation and Reduced Basis Methods for Fast Modeling of Compressible Flows
Jan Sickmann Hesthaven, Deep Ray
A projection-based reduced order model (ROM) based on the Fourier collocation method is proposed for compressible flows. The incorporation of localized artificial viscosity model and filtering is pursued to enhance the robustness and accuracy of the ROM fo ...
GLOBAL SCIENCE PRESS2022On the adjustment, calibration and orientation of drone photogrammetry and laser-scanning
Emmanuel Pierre Quentin Clédat
Centimetre level precision mapping is essential for many applications such as land-use, infrastructure inspection, cultural heritage preservation, and construction site monitoring. However, the acquisition and its preparation (in particular the setting of ...
EPFL2020Rebounds of deformed cavitation bubbles
Mohamed Farhat, Danail Obreschkow, Outi Supponen
Presented here are experiments clarifying how the deformation of cavitation bubbles affects their rebound. Rebound bubbles carry the remaining energy of a bubble following its initial collapse, which dissipates energy mainly through shock waves, jets, and ...
AMER PHYSICAL SOC2018Scale anomalies, states, and rates in conformal field theory
This paper presents two methods to compute scale anomaly coefficients in conformal field theories (CFTs), such as the c anomaly in four dimensions, in terms of the CFT data. We first use Euclidean position space to show that the anomaly coefficient of a fo ...
2017Progress in airborne gravimetry by combining strapdown inertial and new satellite observations via dynamic networks
We revisit the concept of scalar gravity ano- maly determination by an airborne strapdown INS - GNSS system. We built on the previously investigated concepts (mainly within 1995-2005 period) while trying to decrease the error spectrum of the system caused ...
2015Bedrock topography reconstruction of glaciers from surface topography and mass-balance data
Marco Picasso, Laurent Michel, Heinz Blatter, Martin Funk
Three methods based on the three-dimensional shallow ice approximation of glacier flow are devised that infer a glacier's subglacial topography from the observation of its time-evolving surface and mass balance. The quasi-stationary inverse method relying ...
Springer2014Energy expenditure estimation using accelerometry and heart rate for multiple sclerosis and healthy older adults
Kamiar Aminian, Arash Arami, Fabien Massé, Alan Kevin Bourke
Accurate estimation of Energy Expenditure (EE) in ambulatory settings provides greater insight into the underlying relation between different human physical activity and health. This paper describes the development and validation of energy expenditure esti ...
2014The quest for the most spherical bubble: experimental setup and data overview
Mohamed Farhat, Nicolas Dorsaz, Danail Obreschkow, Philipp Kobel, Aurèle De Bosset, Marc Tinguely
We describe a recently realized experiment producing the most spherical cavitation bubbles today. The bubbles grow inside a liquid from a point plasma generated by a nanosecond laser pulse. Unlike in previous studies, the laser is focussed by a parabolic m ...
Springer Verlag2013Development of a robotic mobile mapping system by vision-aided inertial navigation
Vision-based inertial-aided navigation is gaining ground due to its many potential applications. In previous decades, the integration of vision and inertial sensors was monopolised by the defence industry due to its complexity and unrealistic economic burd ...
EPFL2006