The potential of the hybrid scenario (first developed as an advanced inductive scenario for high fluence) as a regime for high-beta, steady-state plasmas is demonstrated on the DIII-D tokamak. These experiments show that the beneficial characteristics of hybrids, namely safety factor >= 1 with low central magnetic shear, high stability limits and e...
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Est-il techniquement et économiquement possible en Suisse de réduire les émissions de CO2 liées à l’énergie d’ici 2050 afin que le réchauffement climatique reste inférieur à 2 degrés? L’OFEV a mandaté une étude sur le sujet à l’Ecole polytechnique fédérale de Lausanne (EPFL). C’est l’économiste Philippe Thalmann qui l’a menée avec son équipe. Il no...
Imaging in neuroscience, clinical research and pharmaceutical trials often employs the 3D magnetisation-prepared rapid gradient-echo (MPRAGE) sequence to obtain structural T1-weighted images with high spatial resolution of the human brain. Typical research and clinical routine MPRAGE protocols with similar to 1 mm isotropic resolution require data ...
We present a resonant inelastic x-ray scattering (RIXS) study of spin and charge excitations in overdoped La1.77Sr0.23CuO4 along two high-symmetry directions. The line shape of these excitations is analyzed and they are shown to be highly overdamped. Their spectral weight and damping are found to be strongly momentum dependent. Qualitative agreemen...
Cyclic peptide disulfides (CXC) are an important class of biomolecules. The conjugation of cyclic peptide disulfides to synthetic polymers, however, is often difficult due to the presence of the disulfide bond combined with other potentially reactive side chain amino acids, such as lysine. This report describes a general, protective group-free meth...
Test assays capable of providing quantitative characterization of the contraction of cardiac and smooth muscle cells are of great need for drug development and screening. Several methodologies have been proposed for achieving measurement of cell contractile stress or force, however almost all rely on optical methods to detect contraction. Recently,...
We cast the problem of query by example spoken term detection (QbE-STD) as subspace detection where query and background are modeled as a union of low-dimensional subspaces. The speech exemplars used for subspace modeling consist of class-conditional posterior probabilities obtained from deep neural network (DNN). The query and background training ...
La "valeur terminale", soit le prix inscrit pour l'immeuble au terme de l'horizon de calcul, joue un rôle central dans le calcul du prix par la méthode DCF. Surtout depuis que les taux d'actualisation sont si faibles. Alors comment estimer cette valeur terminale? Comment prendre en compte l'évolution des revenus et charges, ainsi que des grands tra...
An in situ method to study the behavior of alloys during rapid heating and cooling combining laser heating with synchrotron micro X-ray diffraction and high-speed imaging is presented. Near-spherical Ti-48Al specimens were melted using a laser-based heating system consisting of two diode lasers and subsequently rapidly solidified using a Cu support...
