Commissariat a L'energie Atomique Et Aux Energies Alternatives

Thomson Licensing S.a.

Arnaud Leroy

Stéphane Cros

Christine Walsh

Julien Fleureau

Philippe Guillotel

Jean-Philippe Fauvarque

Fabien Jaubert

Method for estimating a gas flow in an enclosure maintained in a low pressure regimen relative to the gas, including:  

Device and method for estimating a flow of gas in an enclosure maintained at reduced pressure in relation to the gas

A cell for measuring the permeation of a target gas through a sample includes upstream and downstream chambers connected by an opening, a primary seal in contact with the bottom of the upstream chamber and surrounding the opening, and a removable sample holder and means for assembling the sample holder in the cell. Upper and lower frames included in the sample holder are each provided with a through opening. The sample holder includes means for assembling the sample in the sample holder and a first seal flush with the front surface of the lower frame, and surrounding the through opening of the lower frame. In the lower frame of the sample holder, a second seal is flush with the front surface of the lower frame, surrounding the through opening of the lower frame, and being surrounded with the first seal, and a second channel emerging between the two secondary seals.

Sample holder and associated permeation device

The invention relates to a method for measuring permeation of gases through a material comprising the following steps:

Method and device for measuring permeation by mass spectrometry

For gaze-controlled text size control of a display, the invention proposes to probe, sample and record a user's horizontal gaze Signal; to subject the gaze Signal to a subband filterbank or wavelet transform; to detect line delimiters in the gaze Signal; to derive a reading speed; to determine, as a number of saccades per text line the number of locations where the gaze Signal has sudden high slope portions surrounded on both sides by portions of markedly smaller slope; to detect, based on the reading speed and the number of saccades, a too small font size Status or a too big font size Status; and to initiate a corresponding font size change. Parts of this method can be used for gaze-based measuring of text reading speed and for gaze-based measuring of number of saccades.

Method for gaze-controlled text size control, and methods for gaze-based measuring of a text reading speed and of a number of visual saccades per text line

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Chambery, France

Arnaud Leroy