Search Results - "Lefort, L."

Head stabilization during various locomotor tasks in humans. I: Normal subjects by POZZO, T, BERTHOZ, A, LEFORT, L

“…Head kinematics were studied in ten normal subjects while they executed various locomotor tasks. The movement of the body was recorded with a video system…”
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High-energy femtosecond pulses from an ytterbium-doped fiber laser with a new cavity design by Albert, A., Couderc, V., Lefort, L., Barthelemy, A.

“…A new architecture which is based on the chirped pulse amplification scheme is proposed to increase the pulse energy of the mode-locked fiber laser. The idea…”
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Highly stable 68-fs pulse generation from a stretched-pulse Yb(3+)-doped fiber laser with frequency shifted feedback by Lefort, L, Albert, A, Couderc, V, Barthelemy, A

“…We report on the development of a passively mode-locked and highly-stable stretched pulse laser based on Yb(3+)-doped silica fiber. Mode-locking is achieved by…”
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Head stabilization during various locomotor tasks in humans. II : Patients with bilateral peripheral vestibular deficits by POZZO, T, BERTHOZ, A, LEFORT, L, VITTE, E

“…This experiment, which extends a previous investigation (Pozzo et al. 1990), was undertaken to examine how head position is controlled during natural locomotor…”
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Optical parametric oscillation out to 6.3 μm in periodically poled lithium niobate under strong idler absorption by Lefort, L., Puech, K., Ross, G. W., Svirko, Y. P., Hanna, D. C.

“…The very high gains, achieved when using mode-locked pulses to synchronously pump an optical parametric oscillator based on periodically poled lithium niobate,…”
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All-optical demultiplexing of a signal using collision and waveguiding of spatial solitons by Lefort, L., Barthelemy, A.

“…The basic principle of a new all-optical demultiplexer is experimentally demonstrated. It relies on the interaction between an input signal and two colliding…”
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Efficient, low-threshold synchronously-pumped parametric oscillation in periodically-poled lithium niobate over the 1.3 μm to 5.3 μm range by Lefort, L, Puech, K, Butterworth, S.D, Ross, G.W, Smith, P.G.R, Hanna, D.C, Jundt, D.H

“…Using periodically-poled lithium niobate (PPLN), synchronously pumped by a Nd:YLF laser at 1047 nm, optical parametric oscillation is achieved with a mean…”
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Cross-phase modulation from second-harmonic to fundamental in cascaded second order processes; application to switching by Lefort, L., Barthelemy, A.

“…We consider in this letter the unusual situation where a SHG crystal detuned from phase-matching is illuminated simultaneously by an intense second-harmonic…”
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Ultra-fast saturable absorber through spatial self-trapping and filtering in Ti: PPLN film waveguides by PIOGER, P. H, COUDERC, V, LEFORT, L, BARTHELEMY, A, BARONIO, F, DE ANGELIS, C, MIN, Y. H, QUIRING, V, SOHLER, W

“…Numerical and experimental investigations on ultra-fast all-optical saturable absorber on picosecond optical pulses at 1547 nm using spatial self-trapped…”
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Oxygen-Free Conversion of Methane to Higher Alkanes through an Isothermal Two-Step Reaction on Ruthenium by Belgued, Mohamed, Amariglio, Annie, Lefort, Laurent, Paréja, Pierre, Amariglio, Henri

“…Ruthenium dispersed on silica is able to chemisorb CH4at temperatures significantly lower than EUROPT-1 (see the previous articles). At the temperatures used…”
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Synthesis and Reactions of Cp-Linked Phosphine Complexes of Rhodium by Lefort, Laurent, Crane, Todd W, Farwell, Michael D, Baruch, David M, Kaeuper, John A, Lachicotte, Rene J, Jones, William D

“…The linked Cp ligand [C5H4SiMe2CH2PPh2]- has been used to synthesize several rhodium derivatives. Reaction with [RhClL2]2, where L = C2H4, C8H14, or CO, gives…”
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Development of Asymmetric Hydrogenation Catalysts via High Throughput Experimentation by de Vries, J. G., Lefort, L.

“…The dynamics of drugs discovery imposes severe time constraints on the development chemist in charge of implementing the large scale production of a new Active…”
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Egocentric references and human spatial orientation in microgravity. II: Body-centred coordinates in the task of drawing ellipses with prescribed orientation by GURFINKEL, V. S, LESTIENNE, F, LEVIK, YU. S, POPOV, K. E, LEFORT, L

“…This article describes the results of the "ellipses" experiment conducted during the second French-Soviet spaceflight (project Aragatz). The realization of…”
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Head kinematic during various motor tasks in humans by Pozzo, T, Berthoz, A, Lefort, L

“…Head kinematic during various motor tasks was studied in ten subjects. The movement of the body was recorded with a video system (E.L.I.T.E.) which allows a…”
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Development of Asymmetric Hydrogenation Catalysts via High Throughput Experimentation Développement de catalyseurs d’hydrogénation asymétrique par criblage haut débit by de Vries J. G., Lefort L.

“…The dynamics of drugs discovery imposes severe time constraints on the development chemist in charge of implementing the large scale production of a new Active…”
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Efficient coherent combining of widely tunable fiber lasers by Sabourdy, David, Kermene, Vincent, Desfarges-Berthelemot, Agnes, Lefort, Laurent, Barthelemy, Alain, Even, P, Pureur, D

“…We have experimentally demonstrated coherent combining of 2 and then 4 fiber lasers, with respectively 99% and 95% combining efficiency. The combining method…”
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Screening of a Supramolecular Catalyst Library in the Search for Selective Catalysts for the Asymmetric Hydrogenation of a Difficult Enamide Substrate by Jiang, Xiao-Bin, Lefort, Laurent, Goudriaan, P. Elsbeth, de Vries, André H. M., van Leeuwen, Piet W. N. M., de Vries, Johannes G., Reek, Joost N. H.

“…Bindings for libraries: Large numbers of bidentate ligands have been formed from two monodentate ligands (one based on zinc(II) porphyrin and the other on a…”
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Head stabilization during locomotion. Perturbations induced by vestibular disorders by Pozzo, T, Berthoz, A, Vitte, E, Lefort, L

“…Head kinematics was studied in 10 normal subjects (NS) and 7 patients (P) with bilateral vestibular deficit while they executed various locomotor tasks. The…”
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Development of Asymmetric Hydrogenation Catalysts via High Throughput Experimentation : Discovery and Optimization of Catalysts and Solvents for Absorption Using High Throughput Experimentation by DE VRIES, J. G, LEFORT, L

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Rh-Catalyzed Asymmetric Hydrogenation of Prochiral Olefins with a Dynamic Library of Chiral TROPOS Phosphorus Ligands by Monti, Chiara, Gennari, Cesare, Piarulli, Umberto, de Vries, Johannes G., de Vries, André H. M., Lefort, Laurent

“…A library of 19 chiral tropos phosphorus ligands, based on a flexible (tropos) biphenol unit and a chiral P‐bound alcohol (11 phosphites) or secondary amine (8…”
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