Concept

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Publications associées (219)

A review of wave celerity in frictionless and axisymmetrical steel-lined pressure tunnels

Generally applicable approaches for estimating the‘‘quasi-static’’, which means without fluid–structure interaction and frequency-dependent water-hammer wave speed in steel-lined pressure tunnels are analyzed. The external constraints and assumptions of th ...

Elsevier2011

Direct data-driven H2 − H∞ loop-shaping

Alireza Karimi

In this paper, a direct data-driven approach is proposed to tune fixed-order controllers for unknown stable LTI plants in a mixed-sensitivity loop-shaping problem. The method requires a single set of input-output samples and it is based on simple convex op ...

2011

Adaptive Monte Carlo applied to uncertainty estimation in five axis machine tool link errors identification with thermal disturbance

Loïc Andolfatto

Knowledge of a machine tool axis to axis geometric location errors allows compensation and corrective actions to be taken to enhance its volumetric accuracy. Several procedures exist, involving either lengthy individual test for each geometric error or fas ...

2011

Historical development of side-channel spillway in hydraulic engineering

Michael Pfister

Side-channels are a typical element of earth or rockfill dams to discharge floods sideways instead frontally, such as normally adopted for concrete dams. The side channel received attention from the hydraulics community from the 1920s, once the first large ...

2011

Strengthening of flat slabs against punching shear using post-installed shear reinforcement

Aurelio Muttoni, Miguel Fernández Ruiz

A significant number of existing flat slabs currently require strengthening against punching shear for safety reasons (the increase of applied loads and deficiencies during design or construction) or to comply with more stringent code requirements. Availab ...

ACI Structural Journal2010

Display probability modulates attentional capture by onset distractors

Michael Herzog, Bilge Sayim

Attention can be stimulus-driven and bottom-up or goal-driven and top-down. Bottom-up attention and, particularly, attentional capture are often thought to be strongly automatic, i.e., not modulable. For example, in visual search, it has been shown that sa ...

Association for Research in Vision and Ophthalmology2010

Motion Synergies for Real-Time Postural Control in Virtual Environments

Daniel Raunhardt

Virtual prototyping has become an important part during the product development process. The common way to let a user interact with the virtual prototype is the use of a three dimensional virtual mannequin that is controlled by the user. These human figure ...

EPFL2010

Quasi-static cyclic tests of two prefabricated, reinforced masonry walls

Katrin Beyer, Michael Markus Rupf, Alessandro Dazio

In the second half of the 20th century, the majority of residential buildings in Switzerland have been built with unreinforced brick masonry walls and reinforced concrete floors. Following a re-evaluation of the seismic hazard in Switzerland, a country of ...

2010

Anisotropic mechanical response of a shale

Lyesse Laloui, Mathieu Nuth, Simon Salager

The purpose of the study is to characterize the main features of the anisotropic mechanical behaviour of a shale (Opalinus Clay), and to identify an anisotropic constitutive framework adapted to the response of the material under mechanical perturbations. ...

2010

A 3D approach to equilibrium, stability and transport studies in RFX-mod improved regimes

Wilfred Anthony Cooper, Nicola Vianello, Zheng Wang, Elena Gaio, Alberto Ferro

The full three-dimensional (3D) approach is now becoming an important issue for all magnetic confinement configurations. It is a necessary condition for the stellarator but also the tokamak and the reversed field pinch (RFP) now cannot be completely descri ...

Institute of Physics2010

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