Grelier
Alain Grelier, Tigy FR
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20090100963 | HOLLOW STRUCTURAL ROD AND PRODUCTION METHOD THEREOF - The invention relates to a hollow structural connecting rod ( | 04-23-2009 |
Michaël Grelier, Paris FR
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20130249762 | BROADBAND ANTENNA REFLECTOR FOR A CIRCULAR-POLARIZED PLANAR WIRE ANTENNA AND METHOD FOR PRODUCING SAID ANTENNA REFLECTOR - In the field of circular-polarized planar wire antennas for very wide band telecommunications systems, and an antenna reflector for such an antenna, an antenna device comprises an antenna reflector and an antenna, and a method for implementing the antenna reflector. The antenna reflector comprises, on the one hand, a first reflection region exhibiting electromagnetic properties of an electrical conductor in a first sub-band of frequencies and, on the other hand, a second reflection region exhibiting electromagnetic properties akin to a magnetic conductor in a second sub-band of frequencies. Each reflection region is designed to face a region of the antenna able to emit electromagnetic radiation in the corresponding sub-band of frequencies in order to reflect the electric field of the backward radiation in phase with the electric field of the forward radiation. | 09-26-2013 |
Michaël Grelier, Paris FR
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20130249762 | BROADBAND ANTENNA REFLECTOR FOR A CIRCULAR-POLARIZED PLANAR WIRE ANTENNA AND METHOD FOR PRODUCING SAID ANTENNA REFLECTOR - In the field of circular-polarized planar wire antennas for very wide band telecommunications systems, and an antenna reflector for such an antenna, an antenna device comprises an antenna reflector and an antenna, and a method for implementing the antenna reflector. The antenna reflector comprises, on the one hand, a first reflection region exhibiting electromagnetic properties of an electrical conductor in a first sub-band of frequencies and, on the other hand, a second reflection region exhibiting electromagnetic properties akin to a magnetic conductor in a second sub-band of frequencies. Each reflection region is designed to face a region of the antenna able to emit electromagnetic radiation in the corresponding sub-band of frequencies in order to reflect the electric field of the backward radiation in phase with the electric field of the forward radiation. | 09-26-2013 |
Patricia Grelier, Sartrouville FR
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20100065494 | Biological Water Treatment by Alternating Continuous and Sequential Aeration - A water treatment method using a biological reactor to break down the nitrogen-based pollution contained in said water, said reactor comprising a biomass aerated by aeration means, said treatment comprising simultaneous nitrification/denitrification phases, characterized in that said treatment implements two aeration modes: a continuous aeration mode; a sequential aeration mode in which the aeration interruption is triggered when the ammonia concentration reaches a low predetermined threshold while the aeration is activated when the ammonia concentration reaches a high predetermined threshold, the switching from one aeration mode to the other being activated according to the nitrate concentration in said water, said continuous aeration mode being activated when said nitrate concentration reaches a low predetermined threshold, and said sequential aeration mode being activated when said nitrate concentration reaches a high predetermined threshold. | 03-18-2010 |
20110210065 | Device and Method for Treating Water Involving a Filtration Through At Least One Submerged Membrane - The invention relates to a device and a method for treating water to be treated, said method involving a filtration through at least one membrane coupled to an activated sludge reaction chamber, characterised in that added particles are present in at least one volume of activated sludge in contact with the membrane and in that variations in a flow generated in said volume of activated sludge parallel to the membrane are applied, enabling the creation of a level of average turbulent intensity greater than that corresponding to a constant flow in the immediate proximity of the membrane. | 09-01-2011 |
Thomas Grelier, Toulouse FR
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20150249966 | GNSS Radio Signal For Improved Synchronization - A global navigation satellite system (“GNSS”) positioning method is provided, based upon a GNSS radio signal that comprises a navigation message transmitted as a succession of data packets. Each data packet is present in the GNSS radio signal as a sequence of symbols obtained by application of a code preceded by a synchronization symbol header. The data packets are organized internally into data fields. At least certain data packets of the succession of data packets contain a synchronization bit field translated by application of the code into a synchronization symbol pattern. | 09-03-2015 |