Abstract: The present invention relates to a transition channel (10) between a first turbine section and a second turbine section for a gas turbine engine, comprising a first radially external annular wall (102), a second radially internal annular wall, the first wall comprising orifices (102C?) for injecting a fluid into the channel in order to re-energize the boundary layer thereof. It is characterized in that the first wall (102) consists of ring sector elements housed inside an annular ring (104), fluid supply means being arranged between the space (110) outside the ring and said injection orifices (104).

Abstract: The inventive device comprises an electrodialysis unit (5) comprising the following: two electrodes (37, 37′) for generating a continuous electric field between them and, between the electrodes, a plurality of ion-exchanger membranes (44, 45) which select of positive or negative ions (45), a plurality of membrane separator frames (41), each of which is arranged between two membranes (44, 45) so that the water to be treated can pass over the surface of the adjacent membranes, and two separator frames (40) for separating the electrodes and the membranes, which are arranged between the two electrodes (37, 37′) and the adjacent membranes (44) to allow the water to pass along the electrodes, the water to be treated only being guided into the separator frames (41) between two ion exchange membranes and the purified water being guided into the frames (40) separating the electrodes and the membranes, before being guided to the exit (33) of the electrodialysis unit.

Abstract: A method and device for the detection of vapors of cocaine and associated compounds are disclosed. The method involves sampling a volume of air suspected of containing cocaine vapors, passing this air through a filtration system that removes any particulate matter and binds vapors of cocaine and associated compounds, if present, for further analysis. A preferred associated compound-vapor is that of ecgonidine methyl ester (EDME), and a marker for the presence of cocaine. The device is comprised of a sampling, filtration and vacuum port components and can be easily attached to a container, and suction source, for the sampling of air.

Abstract: Filtration module formed by a stack of tubular membranes shaped as flat cases (1) 0.2 to 2 mm thick and intercalated drains (2) formed as a cloth or a lattice which leaves uncovered the end parts of the case, which are covered by tight and rigid tongues (3). The stack, sandwiched between two rigid plates (5) and integrally mounted to two end flanges (6, 7) which sealingly engage a tubular body, while providing input openings (71) and output openings for the product to be filtered and the filtered product, in parallel for all the cases. The plates provide a free space for the filtrate discharge between the stack and the body. The path length of the filtered product is between 10 and 50 cm and the discharge path length of the filtrate is between 3 and 10 cm.

Abstract: Phosphorus-containing flame proofing mixtures with low crystallization temperatures and with the ability significantly to improve the flame resistance of materials without adversely affecting the other properties of the materials, the mixtures being principally comprised of phosphonates having the structure: ##STR1## wherein X is chloro or bromo; Z.sub.1, Z.sub.2 and Z.sub.3 are the same or different and are --CH.sub.2 --CH.sub.2 -- or ##STR2## and R is CH.sub.3 or CH.sub.2 Cl, and the molar ratio of the --CH.sub.2 --CH.sub.2 --X groups to the total of --CH.sub.2 --CH.sub.2 --X and the --CH.sub.2 --CHR--X groups is from 2 to 90%, these flame proofing mixtures being usable with both synthetic and natural materials, together with the flame-resistive natural and synthetic materials so made.

Abstract: The present invention relates to a plastic blend of polymers, capable of being injected and extruded, the process for producing it and its applications.This blend is produced by extrusion of a matrix of heat-stable material consisting of a polysulfone resin or polyphenylene sulfide and of a filler of a fluorocarbon polymer resin, the extrusion producing a network of interconnected and inter-penetrated fibers of filler within the matrix.This blend can be employed in an aggressive environment and at a high temperature, particularly for the manufacture of components of electrochemical reactors such as electrolysis cells.

Abstract: Analyzer for monitoring the traffic of a group of trunks conveying decimal code signalling and dialling impulses and multifrequency code signalling and dialling signals. It comprises multifrequency signalling receivers in a number smaller than the trunks of the group which are connected to the trunks only during the time when the same convey multifrequency signals. As this time is variable according to the phase succession of the telephone call, means are provided for defining the last decimal code impulse before the beginning of multifrequency signalling which serves for connecting a multifrequency signalling receiver to the trunk and the last multifrequency code signal according to the call phase succession which serves for disconnecting the multifrequency signalling receiver from the trunk.

Abstract: A device for injecting and igniting a fuel in a flow of air, comprising a bular duct in which are generated an internal flow of rotating air and an intermediate flow containing fuel which is sandwiched between the internal flow and an external flow of rotating air, in which ignition is effected by a central electrode placed in the axis of the tubular duct and defining within the latter an annular channel which narrows around the downstream end of the central electrode to form an annular gap of uniform width along the entire extent of its circumference, in such a way that a difference in electrical potential applied between the electrode and the tubular duct causes sparks to jump between the free end of the electrode and the tubular duct across the internal flow and the intermediate flow.