Publications associées à Réveille-matin

Fractal temporal organization of motricity is altered in major depression

Objective: Motor changes in major depression (MD) may represent potential markers of treatment response. Physiological rhythms (heart rate/gait cycle/hand movements) have been recently shown to be neither random nor regular but to display a fractal tempora ...

Elsevier2012

New miniaturized microwave cavity for Rubidium atomic clocks

Anja Skrivervik, Jean-François Zürcher, Francesco Merli, Maddalena Violetti

Nowadays there is an increasing need for radically miniaturized and low-power atomic frequency standards, for use in mobile and battery-powered applications. For the miniaturization of double-resonance (DR) Rubidium (Rb-87) atomic clocks, the size reductio ...

Ieee2012

New Miniaturized Microwave Cavity for Rubidium Atomic Clocks

Anja Skrivervik, Francesco Merli, Maddalena Violetti

Nowadays there is an increasing need for radically miniaturized and low-power atomic frequency standards, for use in mobile and battery-powered applications. For the miniaturization of double-resonance (DR) Rubidium (Rb-87) atomic clocks, the size reductio ...

IEEE2012

Low-temperature indium hermetic sealing of alkali vapor-cells for chip-scale atomic clocks

Nico de Rooij, Danick Briand, Yves Pétremand

We present a low-temperature indium hermetic bonding technique on wafer level without using flux, active atmosphere or other pretreatment of the indium. Its simplicity and low temperatures allow encapsulation of sensitive MEMS devices. Bonding stronger tha ...

IEEE2012

Polychromatic femtosecond fluorescence studies of metal-polypyridine complexes in solution

Majed Chergui, Andrea Cannizzo, Ahmed Maher Fahmy El-Zohry

Femtosecond-resolved broadband fluorescence studies are reported for M(bpy)(3) (M = Fe, Ru), RuN3 and RuN719 complexes in solution. We investigated the pump wavelength dependence of the fluorescence of aqueous Fe(bpy)(3) and the solvent and li ...

2012

Dispensing and Hermetic Sealing Rb in a Miniature Reference Cell for Integrated Atomic Clocks

Herbert Shea, Peter Ryser, Thomas Maeder, Fabrizio Vecchio, Vinu Lalgudi Venkatraman

An innovative method for filling and sealing the reference cell for a Rubidium (Rb) integrated atomic clock is presented. We used a simple, low-temperature solder sealing technique for producing mini-cells of the size of 12 x 10 x 2 mm, suitable for Rb min ...

Elsevier2011

Dispensing and hermetic sealing Rb in a miniature reference cell for integrated atomic clocks

Herbert Shea, Peter Ryser, Thomas Maeder, Fabrizio Vecchio, Vinu Lalgudi Venkatraman

An innovative method for filling and sealing the reference cell for a Rubidium (Rb) integrated atomic clock is presented. We used a simple, low-temperature solder sealing technique for producing mini-cells of the size of 12 x 10 x 2 mm, suitable for Rb min ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2010

Silicon Resonator Based 3.2 mu W Real Time Clock With +/- 10 ppm Frequency Accuracy

David Ruffieux, François Krummenacher, Aurélie Pezous

This paper presents an ultra-low power generic compensation scheme that is used to implement a real time clock based on an AlN-driven 1 MHz uncompensated silicon resonator achieving 3.2 mu W power dissipation at 1 V and +/- 10 ppm frequency accuracy over a ...

2010

Segment number and axial identity in a segmentation clock period mutant.

Andrew Charles Oates

A species-specific number of segments is a hallmark of the vertebrate body plan. The first segmental structures in the vertebrate embryo are the somites, which bud sequentially from the growing presomitic mesoderm (PSM). The Clock and Wavefront model for s ...

2010

Intercellular coupling regulates the period of the segmentation clock

Andrew Charles Oates

Background: Coupled biological oscillators can tick with the same period. How this collective period is established is a key question in understanding biological clocks. We explore this question in the segmentation clock, a population of coupled cellular o ...

2010

Réveille-matin

Fractal temporal organization of motricity is altered in major depression

New miniaturized microwave cavity for Rubidium atomic clocks

New Miniaturized Microwave Cavity for Rubidium Atomic Clocks

Low-temperature indium hermetic sealing of alkali vapor-cells for chip-scale atomic clocks

Polychromatic femtosecond fluorescence studies of metal-polypyridine complexes in solution

Dispensing and Hermetic Sealing Rb in a Miniature Reference Cell for Integrated Atomic Clocks

Dispensing and hermetic sealing Rb in a miniature reference cell for integrated atomic clocks

Silicon Resonator Based 3.2 mu W Real Time Clock With +/- 10 ppm Frequency Accuracy

Segment number and axial identity in a segmentation clock period mutant.

Intercellular coupling regulates the period of the segmentation clock

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Fractal temporal organization of motricity is altered in major depression

New miniaturized microwave cavity for Rubidium atomic clocks

New Miniaturized Microwave Cavity for Rubidium Atomic Clocks

Dispensing and Hermetic Sealing Rb in a Miniature Reference Cell for Integrated Atomic Clocks

Low-temperature indium hermetic sealing of alkali vapor-cells for chip-scale atomic clocks

Polychromatic femtosecond fluorescence studies of metal-polypyridine complexes in solution

Dispensing and hermetic sealing Rb in a miniature reference cell for integrated atomic clocks

Intercellular coupling regulates the period of the segmentation clock

Silicon Resonator Based 3.2 mu W Real Time Clock With +/- 10 ppm Frequency Accuracy

Segment number and axial identity in a segmentation clock period mutant.