Abstract: The present invention deals with microfluidic devices (200) including a microreactor (20) and at least one connector (101) sealed thereon. It also deals with a method for manufacturing such microfluidic devices and to blocks of material suitable as connector.

Abstract: The invention relates to a process for preparing reactive zinc by electrochemical reduction, wherein iron or steel is used as cathode material.

Abstract: In one embodiment, a method for handling an error message includes interrogating an error message issued by a computing system to determine that the error message includes more than an alarm message, determining a message identifier relating to the error message, comparing the message identifier to entries in a database to determine an entry in the database that includes the message identifier, and outputting a set of documentation referenced by the entry in the database which includes the message identifier. In another embodiment, the database includes a plurality of searchable entries, each entry including: a message identifier, a product identifier, a set of documentation, and a set of actions. The set of documentation includes documents for the computing system to output and the set of actions includes actions for the computing system to perform. Other methods, systems, and computer program products are also described according to various embodiments.

Abstract: The invention relates to a process for removing small amounts of water and possible further constituents from alkali metal amalgam, wherein the alkali metal amalgam is brought into contact with an element which is insoluble in mercury and catalyzes the reaction of water with the alkali metal amalgam and the possible further constituents to form hydroxides and hydrogen.

Abstract: A resonant detection or identification antenna having at least one turn the antenna includes at least one electrically conducting wire and is connected to an electronic transponder chip, the operating frequency of the antenna being greater than or equal to 10 MHz and the area defined by the at least one turn being substantially less than or equal to 0.30 m2. The total capacitance of the antenna is substantially greater than or equal to 140 pF and the Q-factor of the at least one turn is substantially greater than or equal to 30.

Abstract: The invention relates to a passive transmitter-receiver device (6,28,33) fed by an electromagnetic wave, provided with an antenna comprising a loop (7, 30, 34) which is associated with an electronic transponder chip (9), said loop being able to feed the electronic chip by an induced current which is generated when it is cross-flown by an electromagnetic wave (H1, H2, H3, Ha, Hr) carrying information, and to transmit a second electromagnetic wave carrying a response from the electronic chip. The antenna is configured in such a way that the loop includes at least two non-coplanar or non-parallel parts in a position of use.

Abstract: The invention concerns an antenna for use as transmission/reception beacon (2), in a radio frequency identifying system, having a general upturned U configuration, located in a vertical plane, above the ground transversely to a passage (9), the vertical end portions (8b, 8c). The invention is applicable to a system for detecting, over a large width (L), the passage of people, animals or objects bearing electronic tags (7).

Abstract: A resonant detection or identification antenna having at least one turn the antenna includes at least one electrically conducting wire and is connected to an electronic transponder chip, the operating frequency of the antenna being greater than or equal to 10 MHz and the area defined by the at least one turn being substantially less than or equal to 0.30 m2. The total capacitance of the antenna is substantially greater than or equal to 140 pF and the Q-factor of the at least one turn is substantially greater than or equal to 30.

Abstract: The invention concerns an antenna for use as transmission/reception beacon (2), in a radiofrequency identifying en system, having a general upturned U configuration, located in a vertical plane, above the ground transversely to a passage (9), the antenna thus forming an unclosed loop. Said antenna can consist of a single wire (8), with horizontal median portion (8a), and vertical end portions (8b, 8c). The invention is applicable to a system for detecting, over a large width (L), the passage of people, animals or objects bearing electronic tags (7).

Abstract: The invention concerns the use of a piperazine derivative of formula (I) wherein: A and B=C═O, C═S or CR7R8 with R7=H, methyl, cyano, cyanomethyl, CO2CH3 or (C═O)CH3 and R8=H or phenyl; R1 to R6=H, OH, or C1-C5 alkoxy; X represents: either C═O, O(C═O), O(C═S), O(SO2), NH(C═O), NH(C═S), NH(SO2), S(C═O) or S(C═S), then Y=NR9R10, CR9R10R11 in which R9, R10 and R11=H, C1-C5 alkyl, C2-C5 alkenyl, or C2-C5 alkynyl or Y=nitrogenous heterocycle comprising 5 to 10 atoms; or X represents O, S, O(C═O)O, NH(C═O)O, or S(C═O)O, then Y=CR9R10R11 with R9, R10, R11 as above; or one of its pharmaceutically acceptable salts for preparing a medicine inhibiting HIV. The invention is useful for treating HIV infection.

Abstract: The disclosure relates to broadcasting by means of rotary antennas using wire dipoles. Two distinct feeder channels respectively leave two transmitters, go through the joint that separates the fixed support from the mobile part of the rotary antenna, then go out horizontally, on either side of the mast, taking support on the bearing structure of the rotary antenna to then rise vertically to the supply points of the dipoles of two distinct vertical groupings of the dipoles: it is thus possible to carry out two simultaneous transmissions from one and the same rotary antenna. Application to broadcasting in decameter waves.

Abstract: The disclosure relates to broadcasting by means of rotary antennas using rigid dipoles. Each of two distinct channels passes through the joint between the fixed support of the mobile part of the antenna and rise vertically into the interior of the mast to respectively reach two distinct vertical groups of dipoles. It is thus possible to carry out two simultaneous transmissions from one and the same rotary antenna. Application to broadcasting in decameter waves.

Abstract: The antenna is a rotating dipole antenna comprising a base, a rigid support rotatably mounted on the base, a plurality of wire dipoles fixed to the support, and means to feed each dipole with electrical energy from a first end of said dipole. In order to provide for the efficient fastening of the dipoles, the rigid support extends before at least the first end of each dipole, and this first end is fixed directly to the rigid support while the second ends of the dipoles are either fixed directly to the rigid support or connected to it by a catenary supported on the support. The antenna can be applied to the designing of power antennas in the decametric wave range.

Abstract: The invention concerns an inductance device formed on the basis of an asymmetrical line. This inductance device includes a plane conductor, preferably cylindrical, a linear conductor extending along and close to the plane conductor and having one end short-circuited with the plane conductor. Positioning devices make it possible to keep the linear conductor in a determined position in relation to the plane conductor. The inductance device is particularly used for the manufacture of power inductances for short waves.

Abstract: The disclosure concerns an assembly formed by a large-sized antenna with a supporting mast, the working of which brings the ground plane into play, and by a high-power transmitter. To reduce the distance between the transmitter and the radiating part of the antenna, and to reduce the cost of the architectural structure of the antenna and of the room sheltering the transmitter, this room is formed by the base of the mast which supports the antenna. The dimensions and bed of the base of the mast are designed as a function of the space needed and of the stability to be given to the antenna.

Abstract: A system comprising a roll press for crushing and partially agglomerating a mineral material, a conveyor means arranged downstream of this press and associated with a distributor device and allowing to recycle one portion of the crushed and partially agglomerated material to the inlet of the press whereas the other portion of the material issuing from this distributor device feeds a second distributor device one outlet of which communicates with the conveyor means to thereby control the amount and density of the crushed and partially agglomerated material recycled to the feed of the press.

Abstract: A whole wave antenna is placed on an insulating support and has its feed input located a little above its middle. In order to reduce secondary lobes inductive reactances are serially inserted in the antenna on each side of its feed input so as to produce a rapid rotation with inversion of the phase of the currents on each side of the feed input.

Abstract: A vertical grounded antenna is supplied at one third of its height. The antenna is substantially a whole wave antenna and, in order to reduce the secondary lobes of the vertical pattern of said antenna, its height is so determined as to produce an inversion of the sign of the phase of the current on each side of the feed input.