Concept
Proxima Centauri
Publications associées (32)
Improved Phase-Modulated Homonuclear Dipolar Decoupling for Solid-State NMR Spectroscopy from Symmetry Considerations
We explore the effects of symmetry on the performance of phase-modulated homonuclear dipolar decoupling in H-1 solid-state NMR. We demonstrate that the symmetry of the DUMBO family of decoupling sequences is the result of two well-defined symmetry expansio ...
AMER CHEMICAL SOC2013Biaxial texture development in aluminum nitride layers during off-axis sputter deposition
Polycrystalline aluminum nitride (AlN) layers were deposited by pulsed-dc reactive magnetron sputtering from a variable deposition angle alpha = 0 degrees-84 degrees in 5 mTorr pure N-2 at room temperature. X-ray diffraction pole figure analyses show that ...
American Vacuum Society2012Nucleosynthesis And The Inhomogeneous Chemical Evolution Of The Carina Dwarf Galaxy
The detailed abundances of 23 chemical elements in nine bright red giant branch stars in the Carina dwarf spheroidal galaxy are presented based on high-resolution spectra gathered at the Very Large Telescope (VLT) and Magellan telescopes. A spherical model ...
2012Radical Stability Directs Electron Capture and Transfer Dissociation of Beta-Amino Acids in Peptides
Yury Tsybin, Hisham Ben Hamidane, Aleksey Vorobyev
We report on the characteristics of the radical-ion-driven dissociation of a diverse array of beta-amino acids incorporated into alpha-peptides, as probed by tandem electron-capture and electron-transfer dissociation (ECD/ETD) mass spectrometry. The report ...
2010Flares from a candidate Galactic magnetar suggest a missing link to dim isolated neutron stars
Magnetars(1) are young neutron stars with very strong magnetic fields of the order of 10(14)-10(15) G. They are detected in our Galaxy either as soft gamma-ray repeaters or anomalous X-ray pulsars. Soft gamma-ray repeaters are a rare type of gamma-ray tran ...
2008Synchronization of L-mode to H-mode transitions on the sawtooth cycle in Ohmic TCV plasmas
L-mode to H-mode transitions (LH transitions) are obtained in a wide range of plasma parameters in TCV Ohmic discharges. LH transitions either occur directly, indicated by a single abrupt drop in D-alpha emission, or present an intermediate 'dithering' pha ...
2004Control of neoclassical tearing modes by sawtooth control
The onset of a neoclassical tearing mode (NTM) depends on the existence of a large enough seed island. It is shown in the Joint European Torus that NTMs can be readily destabilized by long-period sawteeth, such as obtained by sawtooth stabilization from io ...
2002Overview of results and possibilities for fast particle research on JET
The large physical size of the JET tokamak, its heating systems and diagnostics, and its capability to operate with full deuterium-tritium (D-T) plasmas, including high-power tritium neutral beam injection (NBI), give it unique possibilities in fast partic ...
2002Dynamics of edge localized modes in the TCV tokamak
Yves Martin, Jonathan Bryan Lister
The D-alpha emission time-series from the TCV tokamak was investigated fora large set of ELMy discharges, to determine whether fluctuations in the time delay between ELMs are the result of noise only, or whether a deterministic process in a chaotic state e ...
2001Experimental investigation of the effects of neon injection in TCV
Basil Duval, Yves Martin, Jean-Marc Moret, Ivo Furno, Henri Weisen, Jonathan Bryan Lister, Richard Pitts
This contribution describes the results of impurity seeding experiments using neon gas injection into the private fl zone of an ohmically heated TCV single null lower, deuterium fuelled, open divertor configuration. In these first experiments, neon has bee ...
1999