Concept
Preuve scientifique
Publications associées (53)
How Do In-video Interactions Reflect Perceived Video Difficulty?
Pierre Dillenbourg, Patrick Jermann, Lukasz Kidzinski, Nan Li
Lecture videos are the major components in MOOCs. It is common for MOOC analytics researchers to model video behaviors in order to identify at-risk students. Much of the work emphasized prediction. However, we have little empirical understanding about thes ...
P.A.U. Education2015Advances in understanding hydration of Portland cement
Karen Scrivener, Patrick Juilland
Progress in understanding hydration is summarized. Evidence supports the geochemistry dissolution theory as an explanation for the induction period, in preference to the inhibiting layer theory. The growth of C-S-H is the principal factor controlling the m ...
Elsevier2015Size effects in drift capacities of URM walls
Examining the results of a large set of quasi-static cyclic tests on unreinforced masonry (URM) walls showed that the drift capacity of URM walls reduces with increasing wall size. Such a size effect is of concern since most wall tests were carried out on ...
2015Influence of spandrel modelling on the seismic assessment of existing masonry buildings
The paper discusses different modelling assumptions for spandrels in equivalent frame models and their effect on the global response of the wall. The topic is motivated by the following issues: i) reliable and practice oriented numerical tools constitute a ...
2015Spinor stochastic resonance
Benoît Marie Joseph Deveaud, François Morier-Genoud, Marcia Portella Oberli, Stéphane Trebaol, Hadis Abbaspour
We report on noise-induced spin ordering in a collective quasiparticle system: spinor stochastic resonance. Synergetic interplay of a polarization-modulated signal and a polarization noise allows us to switch coherently between the two metastable states of ...
American Physical Society2015The early German production and use of modern hydraulic binders: between English influences and the search for a scientific approach, 1817-1839
The interest of German building masters towards hydraulic binders grows at the third decade of the 19th century. This acute interest is stimulated by the import of «Roman Cement» from England and by the acquisition of the knowledge related to it. The disse ...
Construction History Society2014The early German production and use of modern hydraulic binders: between English influences and the search for a scientific approach, 1817-1839
The interest of German building masters towards hydraulic binders grows at the third decade of the 19th century. This acute interest is stimulated by the import of «Roman Cement» from England and by the acquisition of the knowledge related to it. The disse ...
2014Corporate Science and Voluntary Disclosure
The dissertation investigates the phenomenon of firms that make voluntary contributions to the stock of scientific knowledge. Such a firm behaviour appears counterintuitive from a traditional viewpoint, since no direct financial returns can be expected whi ...
EPFL2013What makes companies pursue an Open Science strategy?
Julio Diego Salvador Raffo, Markus Simeth
Whereas recent scholarly research has provided many insights about universities engaging in commercial activities, there is still little empirical evidence regarding the opposite phenomenon of companies disseminating scientific knowledge. Our paper aims to ...
Elsevier Science Bv2013Urban street networks, a comparative analysis of ten European cities
Emanuele Strano, Alessio Vincenzo Cardillo
We compare the structural properties of the street networks of ten different European cities using their primal representation. We investigate the properties of the geometry of the networks and a set of centrality measures highlighting differences and simi ...
Pion Ltd2013