The light table for X-ray photography is produced by using a graphic screen (20) coupled to a microprocessor (23) and used in reverse video. Under these conditions, the graphic screen emits light at almost all points except at special places (I25) whose position can be controlled by means of a control unit (24). An X-ray photograph (6) to be examined is placed over the graphic screen. It is possib...

Polyurethane foams having a specified glass transition temperature are densified for transportation or other purposes by heating the foam to a temperature above its Tg, compressing the heated foam, and then cooling the compressed foam to a temperature below its Tg. The cooled foam remains in a densified state until re-heated to a temperature above its Tg, whereupon it re-expands to assume its orig...

a) Liant bitumineux pour revêtement de chaussées ainsi que procédé pour la fabrication d'un tel liant,
b) le liant est caractérisé en ce qu'il est constitué par une émulsion de bitume expansée à l'air et le procédé est caractérisé en ce que l'on expanse une émulsion de bitume chauffée dans un dispositif de foisonnement en y insérant mécaniquement de l'air sous pression.

Feuille de plastique (11) renforcée par fibres à encastrer dans une couche de mortier (8) formée sur une surface d'un élément en béton (7), se présentant sous la forme d'un non-tissé réalisé en entrelaçant de courtes fibres de renforcement (2) de manière tridimensionnelle et en les fixant les unes aux autres à leurs points de contact avec une résine de cuisson, et la feuille comportant une plur...

- Dans un puits (1) équipé pourvu d'un tube perforé (3) dans sa partie traversant une zone de production, on descend un dispositif comportant une colonne de production (6) en deux parties (6A, 6B) séparées par un ensemble de pompage d'effluents (5) et un raccord à fenêtre latérale (21). A l'extrémité basse de la partie inférieure (6B) de la colonne, est disposé au moins un ensemble (16) d'instr...

L'invention concerne un vitrage chauffant en forme constitué par une feuille de verre bombée munie d'un réseau chauffant. Les bandes collectrices de couleur claire sont en partie recouvertes d'une couche d'émail plus sombre ayant une capacité d'absorption de la chaleur plus grande, ce qui permet en modulant le motif de cette couche d'émail de modifier l'échauffement de la feuille de verre lors ...

An improvement to the method of in vitro enzimatic amplification (PCR method) of a target DNA sequence present in heterologous DNA in a medium which comprises a DNA polymerase and a primer oligonucleotide. The method includes various cyclically repeated amplification steps whereby, at a chosen time following the end of the amplification cycles, the resulting amplification products are made unsuita...

L'ensemble applicateur comprend: un récipient (2) contenant un produit cosmétique pâteux (3), ce récipient étant muni d'un goulot (6); un capuchon (8) muni de moyens de fixation sur le goulot (6) et portant une tige (11) au bout de laquelle est prévu un organe applicateur (12); un elément agitateur (A) monté rotatif et des moyens d'entraînement en rotation de cet élément agitateur (A). Ledit él...

An electronic lock is constructed to resemble the appearance and functionality of a conventional cylinder lock. Its key (22) has a bit (24) in which is mounted an integrated circuit chip (27) storing the key code and including a transmission coil for inductive coupling with reading means of the lock. The latter includes a coil (33) for generating a high frequency alternating magnetic field across ...

1. Contact lens (1) for observation and treatment by a beam of coherent radiation of a working point (T) situated in an eye (3) on the optical axis (6) of the lens (1), such contact lens (1) comprising a spherical entry surface (8) having a real Weierstrass point (A') and a virtual Weierstrass point (A) both situated on the optical axis (6), a contact surface intended to be applied to the cornea (...

The method and device locate one or more faults on a logic circuit board. A memory 37 contains a record of data relating to the signals obtained at the outputs of a logic circuit board 30 when a predetermined set of test signals is applied at the inputs of the board, the outputs being a function of a predetermined list of faults. The contents of the memory 37 are compared with data relating to the...

The invention relates to microprocessors and, more particularly, a test system for such microprocessors which forms an integral part of the chip. The invention resides in the fact that the instruction register 15 is converted, during the test sequence, into a counter which successively supplies the instruction codes to be tested. The results of the operations effected which are supplied by the ope...

The implant for an arthroplasty, in particular of a glenoid cavity, is distinguished by the fact that it comprises an element (1) shaped in order to be fixed in the medullary cavity of the bone in question, the said element (1) having an end part (1a) capable of receiving, with a capacity for rotation, a profiled head (2) designed to cooperate in a sliding manner with the articular surface of the ...

L'ensemble prothétique comprenant une cupule ou anneau et un appareil impacteur, est remarquable en ce que la cavité hémisphérique (1a) de la cupule (1), présente des agencements internes (1b) répartis sur sa circonférence et aptes à recevoir, d'une manière démontable, avec capacité d'indexation et de blocage angulaire, des agencements complémentaires (2a) que présente une partie (2) de l'appar...

According to the invention, the electrode comprises a thin-walled structure (24) made of insulating material covered with an electrically conductive coating (26) on one of its faces. The insulating material is a polymer, while the conductive coating consists of a film of natural or synthetic resin filled with a metal powder. The invention also relates to an electrostatic fluid-treatment device com...

Therapeutically utilisable oligonucleotides of the formulae I and II are obtained by introducing terminal 3'-3' or 5'-5' linkages. These nuclease-stable compounds suppress the biological function of nucleic acids.

The subject of the present invention is a composition used as antiappetite agent against plant crop ravaging insects whose biological cycles comprise a leaf-devouring stage. This composition is composed of molecules of esters of sucrose with fatty acids, of which only five of the hydroxyl groups of the base sucrose molecule are esterified and correspond to any acyl groups, identical or different, ...

The invention relates to adenosine derivatives. The subject of the invention is more particularly compounds of the formula (I) in which X represents a hydrogen atom or a chlorine atom or the methyl radical and R represents a cycloalkyl or cycloalkenyl ring containing from 5 to 8 carbon atoms, which ring is substituted by a hydroxyl radical and is optionally substituted by a C1-C6 alkyl rad...

Therapeutically utilisable oligonucleotides of the formulae I and II are obtained by introducing terminal 3'-3' or 5'-5' linkages. These nuclease-stable compounds suppress the biological function of nucleic acids.

1 Oligonucleotide analogs with terminal 3'-3' or 5'-5' internucleotide linkages Therapeutically utilizable oligonucleotides of the formulae I and II have been obtained by introduction of terminal 3'-3' and 5'-5' linkages. These compounds are stable to nucleases and suppress the biological function of nucleic acids.; 1 HOE 90/F 394 of the disclosure Oligonucleotide analogs with terminal 3'-3' or...