Abstract: The present invention relates to a novel method of chemically preparing functionalized derivatives of ?-(1,3)-glucans, enabling obtaining oligosaccharides which are free or which comprise specific groups such as, for example, sulphate, phosphate, methyl, in pre-defined positions. This method includes a reaction between a glycosyl donor of formula (Ia) or (Ib) and a glycosyl acceptor of formula (II), defined in the claims. Application: Preparation of biologically active compounds which can be used in the agricultural, cosmetic or pharmaceutical fields.

Abstract: A marine catamaran platform especially advantageous for small boats (in the three meter range) in which two substantially identical hulls are surmounted by superstructures that are joined by arced beams that lie in a plane that forms an acute angle of between 30° and 60° with a plane common to the hulls.

Abstract: The invention concerns a protective headgear comprising a respirator (2) capable of being connected to a breathing mixture source, an eye protecting shield (5) and first (32) and second (56) lock elements, respectively located on the respirator (2) and on the shield (6) and adapted to co-operate with each other to secure the shield (6) to the respirator (2), when the respirator is in its use position on the user's face, the first (32) and second (56) lock elements being adapted to be mutually engaged and interlocked by a movement bringing the shield (6) closer to the respirator (2), from above.

Abstract: The cryptographic method is used in transactions for which a first entity generates, by means of a private RSA key, a proof verifiable by a second entity by means of a public RSA key associated with said private key. The public key includes an exponent and a module. The first entity generates a first element of proof by a calculation that can be performed independently of the transaction, and a second element of proof related to the first element of proof and which depends on a common number shared by the first and the second entities specifically for the transaction. The second entity verifies that the first element of proof is related, modulo the module of the public key, to a power of a generic number, with an exponent equal to a linear combination of the common number and of a product of the exponent of the public key by the second element of proof.

Abstract: The invention relates to an error correction coding method, using at least two distinct sections of a predetermined elementary code, associating an arrival vector (s2, s3) with a starting state vector (s0, s1), according to a vector of branch labels (b0, b1, b2, b3), defining a code word, two sections of said elementary code being distinct when the order and/or the role of the elements of said branch label vector are changed.

Abstract: A transfer set for transferring fluid, including drugs, vaccines, medicaments, solutions and the like, between a first container, such as a conventional vial, and a second container, such as a conventional syringe having a unique multipurpose resealable member. The transfer set assembly includes an elastomeric tubular fluid transfer and resealable valve member preferably including an open end mounted on the pierceable closure or stopper of a vial and a generally closed distal end having a longitudinal slit and a piercing member is telescopically received within the fluid transfer valve member having a piercing end opposite the pierceable closure. The fluid transfer valve member is preferably formed of silicone and is surrounded by a generally tubular luer connector member having an open end mounted on the pierceable closure and a distal end having male luer threads.

Abstract: Method for the detection and enumeration of viable microorganisms. A liquid that comprises one or more markers incorporated in a liquid sol-gel precursor, is provided. A transparent slide is coated with a thin uniform layer of the liquid sol-gel precursor composition. The microorganisms are separated from liquid sample to be analyzed by passing the sample through a filter, and then bringing the filter into close contact with the sol-gel coated slide. The filter is co-incubated with the sol-gel coated slide for a period of time and at a temperature suitable to promote uptake of the markers by the microorganisms. The gel-coated slide irradiated with an external energy source, so as to generate detectable signals emitted from the markers uptaken by the microorganisms. Image of the detectable signals emitted from the microorganisms are acquired, and analyzed using a computer system, in order to provide the identification and enumeration of the microorganisms.

Abstract: A ventilation circuit of a turbomachine turbine rotor having a turbine disk and an upstream flange disposed upstream from a combustion chamber from which it is spaced apart by a cavity. A first cooling air circuit delivers air into the cavity via main injectors and holes in the flange. A second cooling air circuit delivers air through enclosures delimited by the combustion chamber inner casing and the rotor via a discharge labyrinth, an under-injector labyrinth, and at least one labyrinth downstream from the main injectors between an annular structure and the flange. Three single-wiper labyrinths delimiting two cavities upstream from the venting cavity of the turbine disk are provided downstream from the main injectors. One of the cavities is fed with air from the second circuit upstream from the under-injector labyrinth by bore holes in the annular structure sloping tangentially in the rotation direction of the rotor.

Abstract: Apparatus for searching for and detecting defects on parts that are substantially inaccessible, being located behind a wall, the apparatus comprising a first endoscope for illumination in visible light and for observation, the first endoscope and pipes for feeding and spraying penetration test substances being housed together in a rod which can be passed through an orifice in the wall in order to examine a part, the apparatus further comprising a second endoscope independent of the first endoscope and the rod for illuminating in ultraviolet light and for observing the portion of the part that has been treated by the penetration test substances.

Abstract: The invention concerns a temperature-compensated accelerator measurement using two vibrating resonators whereof the frequencies (f1, f2) are measured, then used for determining (18, 19) the most probable temperature value (T) based on the sum f1+f2 and on a pre-established correlation (14) between the temperature and the sum f1+f2 and finally based on the determination (20) of the amount f1?f2 of the weighted temperature value, calculating (21) the temperature compensated value of the acceleration (?).

Abstract: A magnetooptic read device in which the figure of merit is optimized mainly by the setting of the incident light polarizer. The component of the incident wave pumps the magnetooptic transducer. The component of the incident wave amplifies the variations in the magnetooptic wave and generates a reflected wave of approximately linear polarization.

Abstract: A parapet wall comprising posts, each post being fastened to a siding of a building by a post fastening means, and heddles connected between the posts, the post fastening means being fastened to the siding of the building on the one hand and to an edge of a roof of the building on the other hand, along a direction generally perpendicular to the siding of the building, by a mounting plate including a first part fastened to the edge of the roof and a second part accommodating a foot of the post.

Abstract: The purpose of this invention is a long-blade cutter with adjustable blade extension and retractable blade guard including an elongated body in which the blade can retract, a slider capable of moving the blade in its plane, a blade holder/loader within which the blade can slide, characterized in that it also includes a safety guard made up of an extended element that can cover the edge of the blade over its full length, arranged movable between a fully retracted position inside the body and an extended position over the entire length of the blade at its position of maximum extension, an elastic recall link mechanism interposed between said safety guard and the slider, means of driving the guard by said slider and a push-button for disengaging said means of driving.

Abstract: A process for increasing the frequency of operation of a magnetic circuit. In the process, gaps are formed in at least one section of the magnetic circuit. The gaps lower the permeability of the magnetic circuit and increase in particular the frequency of magnetic resonance and make possible the use of higher frequencies. Applications of the process include the manufacture of inductors, transformers, components, magnetic heads, etc . . .

Abstract: A centrifugal separator for separating particles from gas uses a separator chamber having an upper potion with at least three substantially vertical planar walls with perpendicular inner faces, and a lower portion, for defining in the chamber a vertical gas vortex. The gas vortex has an inlet formed in the vicinity of a first corner between the first and second walls for gas to be dedusted, an outlet for dedusted gas, and an outlet for separated particles. The separator uses an acceleration duct with a first transverse section at the first end of the duct that is distinctly greater than a second cross section at the second end. This second end is connected to the inlet for gas to be dedusted at the first corner.

Abstract: A spacer for putting into place on a tubular element includes firstly a sleeve of high-compressibility cellular material, the sleeve presenting a wide slot extending over its entire length and defining a central passage that is essentially cylindrical- and being of diameter greater than the nominal diameter of the tubular element, and secondly a sheath of heat-shrink plastics material surrounding the split sleeve at least as far as the end edges thereof. The sheath is partially shrunk on the split sleeve firstly so as to hold the split sleeve in the open state for putting the spacer into place on the tubular element, and secondly so as to be able subsequently to be heat-shrunk to clamp the split sleeve and fix the spacer in position.

Abstract: The thread 4, intended to form a carcass reinforcement, is laid in continguous hoops on a rigid core 1 by a system with at least two oscillating arms transporting an orifice 6 so as to enable it to pass over a core 1 and thus lay adjacent hoops.

Abstract: In a digital satellite television system in which a television receives its signal via receiver/decoder, such as a set top box, interactive applications can be downloaded and run on the receiver/decoder. The application code is arranged as modules, and the downloading of modules is preceded by searching a directory module within a specified local address. The modules are signed and the directory module is signed and encrypted so that a single encryption applies to all of the modules making up the application. Multiple public encryption keys are stored in ROM in the receiver/decoder, so that applications can be created by different sources, without the sources needing to know each other's private encryption keys. A facility is provided to enable an encryption key to be temporarily stored in RAM in the receiver/decoder, so that a manufacturer of the receiver/decoder can check its functionality. A signature of the directory may be hidden at a variable position in a block of dummy data in the directory module.

Abstract: A master cylinder piston for use in a motor vehicle having a flap (22) that is biased towards a position to shut off a pressure-fluid passage (24) by a return spring (28) resting on a cage (30). A flange (38) on a cage (30)for the Spring (28) is located in an annular groove (44) provided in the housing (20) for the flap (22) when the cage (30) bears axially on an inner shoulder (64) of the housing (20).