摘要:
A device has a reaction chamber with at least one feed inlet (5) and at least one evacuation outlet (10). An outside jacket (2a) that is resistant to internal pressure is positioned around the device and contains at least one module (44) through which a reagent and formed products circulate. The module (44) has walls (11) and (12) made of refractory material that are included in a sealed jacket (40). The sealed jacket (40) is connected by a flexible connection to the jacket (2a) and to a heat exchanger that is also linked to the module (44) and to the jacket (2a) by a flexible connection.
摘要:
Device for connecting a heat exchange pipe (4), whereby said pipe (4) is positioned between walls (11) that are located on both sides of pipe (4), intended for heating and/or cooling a reactor, whose internal pressure is considerably higher than the atmospheric pressure and than the pressure that prevails inside said pipe (4), and said reactor, whereby said device comprises a series of cooperating means that comprise: means for connecting this pipe (4) and jacket (2a) of said reactor, whereby said means comprise a packing box (21, 22, 23), a flange (28) that is attached to jacket (2a) of the reactor by means of a joint (18), a bellows (25) that is placed between packing box (21, 22, 23) and said flange (28) to ensure a relatively flexible connection between pipe (4) and jacket (2a) of the reactor. FIG. 3 to be published.
摘要:
Relative and controlled sealing between a pipe (1) and a ceramic tube (7) utilizes a cylindrical chamber (5) that is attached in a sealed manner to the pipe (1), and to one end of the ceramic tube that is placed inside the chamber. At least two sets of sealing fixtures (3, 3′) are placed in an annular space between the ceramic tube and the chamber. A crosspiece (4) is interposed between the two sets sealing of fixtures (3, 3′). A metal mating flange (6) is pressed against a compression ring (4′) to compress the sealing fixtures (3, 3′). Injection of a fluid (8) between the two sets of sealing fixtures (3, 3′) applies a pressure differential that is determined on each of the fixtures.
摘要:
A terrestrial repeater, comprising i) an interface means configured to receive a first data stream originating from a first satellite transmission network, a second data stream originating from a second transmission network, and a third data stream originating from a third terrestrial transmission network, and to transform the received streams into data packets; ii) a first processing means configured to select at least one part of the data packets of at least one of the first, second, and third streams received, and to process each selected stream portion to place the data packets it comprises into a selected broadcast format; and iii) a second processing means configured to combine the selected and processed stream portions to constitute a set of packets to be broadcast, convert the set of packets into at least one radio frequency signal, and amplify the at least one radio frequency signal in order to broadcast wirelessly towards at least one radio communication terminal.
摘要:
A terrestrial repeater (RT), comprising i) interface means (MI) having the function to receive a first data stream originating from a first satellite type transmission network (R1), a second data stream originating from a second transmission network (R2), and a third data stream originating from a third terrestrial type transmission network (R3), and to transform the said received streams into data packets; ii) first processing means (MT1) equipped to select at least one part of the data packets of at least one of the first, second, and third streams received, and to process each selected stream portion so as to place the data packets it comprises into a selected broadcasting format; and iii) second processing means (MT2) having the function to combine the stream portions selected and processed in order to constitute a set of packets to be broadcast, then to convert the said set into at least one radio frequency, and to amplify the said radiofrequency signal with a view to its broadcast via waves towards at least one radio communication terminal (UE).
摘要:
The invention provides a method of switching a call set up between a first station and a second station from a current propagation path to a following propagation path. The method includes the following steps:a value representative of signal-to-noise ratio is measured for each of said propagation paths, namely the current path and the following path; andthe first station switches the call from a current channel on the current propagation path to a following channel on a following propagation path as a function of values representative of signal-to-noise ratio measured respectively for said current propagation path and for said following propagation path. In the method:the following call channel is reserved for said call; and:in said second station, said call is switched from the current channel to said following channel in response to said call failing to be received in the current channel.
摘要:
A method is devoted to synchronizing the transmission of user signals within a single-frequency hybrid network comprising at least one transmission satellite (SAT) and regenerative emitters (E1-E6) tasked with retransmitting received user signals to user terminals (T1, T2), using the same frequency and the same waveform. This method consists of temporally shifting, with respect to a time marker (TM) corresponding to the moment when a chosen element of the user signals arrives at a terrestrial reference arc (RA) from said satellite (SAT), the moment when the user signals received by each emitter (E1-E6) are retransmitted, by a local duration which is a function of the respective positions of the emitter and the satellite (SAT) with respect to a chosen reference position (RP) on said arc (RA), so that the same user signals retransmitted by the satellite (SAT) and the emitter (Ei) reach a user terminal (T1, T2) at roughly the same time.
摘要:
A method is devoted to synchronizing the transmission of user signals within a single-frequency hybrid network comprising at least one transmission satellite (SAT) and regenerative emitters (E1-E6) tasked with retransmitting received user signals to user terminals (T1, T2), using the same frequency and the same waveform. This method consists of temporally shifting, with respect to a time marker (TM) corresponding to the moment when a chosen element of the user signals arrives at a terrestrial reference arc (RA) from said satellite (SAT), the moment when the user signals received by each emitter (E1-E6) are retransmitted, by a local duration which is a function of the respective positions of the emitter and the satellite (SAT) with respect to a chosen reference position (RP) on said arc (RA), so that the same user signals retransmitted by the satellite (SAT) and the emitter (Ei) reach a user terminal (T1, T2) at roughly the same time.
摘要:
In a radiocommunications system having physical channels each including at least one logical channel, the invention proposes transmitting both the means for acquiring and tracking synchronization and the system information addressed to user stations in a single logical channel referred to as the “synchronization” channel. For this purpose, the synchronization channel carries a repeated detection word (1) together with system information (2) between repeats of the detection word. The system information is subjected to spreading prior to being transmitted over the synchronization channel. The invention makes it possible to limit the amount of system resources that are devoted to providing the functions of synchronization and of broadcasting system information.
摘要:
An apparatus for trapping pests is disclosed including a housing defining an internal chamber with a floor in which an entrapped pest remains until being released from the chamber, an inclined, tubular passageway spaced above the floor of said chamber that is closed at a first end and open at a second end, a space for receiving bait placed underneath the passageway, an aperture formed in the wall of the passageway and in communication with the internal chamber, and an occluding element that is insertable and displaceable within the passageway. The occluding element is upwardly displaceable upon ingress of a pest within the passageway by pressure exerted by the pest and downwardly displaceable by gravity upon passage of the pest through the aperture formed in the wall of the passageway, so that the pest is trapped within the chamber following displacement of the element below the aperture.