Abstract: A conveyor belt for conveying plate elements in a machine for converting the elements that includes a belt body with longitudinal edges, joining edges, and a support surface for supporting the elements, and at least one assembly member arranged to join the joining edges, and extending in a direction of assembly which is oblique to the longitudinal direction, the belt body having a plurality of perforations for obtaining a vacuum on the support surface to immobilize the elements.

Abstract: A conveyor belt for conveying plate elements in a machine for converting the elements that includes a belt body with longitudinal edges, joining edges, and a support surface for supporting the elements, and at least one assembly member arranged to join the joining edges, and extending in a direction of assembly which is oblique to the longitudinal direction, the belt body having a plurality of perforations for obtaining a vacuum on the support surface to immobilize the elements.

Abstract: The present invention relates to an automated polymer synthesis apparatus for synthesizing a polymer chain onto a solid substrates by sequentially adding polymer building blocks as well as to a method for synthesizing polymers on solid substrates by sequentially reacting polymer building blocks with reactive groups. The invention further relates to a biochip comprising a solid substrate with reactive groups where biomolecules are attached to and the remaining reactive groups are transformed into chemically inert species.

Abstract: The present invention relates to an automated polymer synthesis apparatus for synthesizing a polymer chain onto a solid substrates by sequentially adding polymer building blocks as well as to a method for synthesizing polymers on solid substrates by sequentially reacting polymer building blocks with reactive groups. The invention further relates to a biochip comprising a solid substrate with reactive groups where biomolecules are attached to and the remaining reactive groups are transformed into chemically inert species.

Abstract: The invention concerns a sensor (1), in particular a biosensor, comprising an electrically or electronically insulating support (2), including at least one active surface (20), a plurality of electrically or electronically conductive electrodes (31,32), arranged on the active surface (2a) of the support in a predetermined operative arrangement, exposed, that is said electrodes can be jointly placed in contact with a common external medium, for example a liquid medium; a plurality of electric terminals (4) respectively corresponding to said electrodes (4), arranged on the active surface (2a, 2b) of the support, exposed, that is said terminals can be electrically or electronically connected outside, independently of one another; a plurality of electrically or electronically conductive strips (5), extending along one (2a) and/or the other (2d) of the support surfaces, connecting the plurality of electrodes (31,32) respectively to the plurality of terminals (4); an electrically or electronically insulating materi

Abstract: This invention relates to an analytical support containing a plurality of oligonucleotides fixed on this support, where each of the nucleotides is marked by a fluorescent compound that presents a variation of fluorescence on the hybridization of each marked oligonucleotide with at complementary oligonucleotide. This support makes it possible to carry out an analysis of biological targets by measuring the variation of fluorescence in order to determine the hybridization of the targets with the oligonucleotides of the support.

Abstract: This invention relates to an analytical support comprising a plurality of oligonucleotides fixed on this support, characterized in that each of said oligonucleotides is marked by a fluorescent compound that presents a variation of fluorescence on the hybridization of each marked oligonucleotide with a complementary oligonucleotide.

Abstract: The present invention relates to a device for analyzing a single electrical pulse, which device comprises an electrical circuit made up of a propagation line, including, in uniformly-distributed manner, optoelectronic switches constituted by photoconductor tabs, each of them being connected to a corresponding analysis line, and an optical device (34-1, 34-2, 34-3, 34-4, 34-5) making it possible to light the switches with a laser beam or with portions of a laser beam, any two adjacent switches being lit successively and not simultaneously.

Abstract: The device has at least one planar detector (2.sub.a, 2.sub.b) able to transform a radiation (8) into electrical charges and a common electrode (12) on an input face and a mosaic of point electrodes (14) and metal bands (34.sub.a -34.sub.e) on an output face, several planar integrated circuit chips (10a, 10b) facing the input face of the detector and having a mosaic of reading circuits (16) and metal bands (30a, 30d) for connecting the circuits to external supply, control and processing devices for output signals, each reading circuit being hybridized by a microsphere to a point electrode and the bands of the chip being positioned facing bands of the detector and hybridized thereto by microspheres. The device is to be used in mamography or dental imaging.

Abstract: The invention concerns an X-ray tomograph device.This device makes it possible to obtain the image (1) of a plane cutting (2) of an object (3). In particular, it comprises an X-ray source (4) which supplies high energy pulses which traverse the object. At least one measurement detector small bar (10) receives the attenuated energy pulses which have traversed the object. A display and processing means connected to the detectors supplies the image of the cutting. These processing means include amplifier-integrator circuits (13) connected to the detectors (10) and to a computer (15) controlling the integration period of the detection pulses suplied by the detectors (10). The computer corrects the value of the amplitude of each detection pulse by talking account of an intermediate integration value so as to take account of the drag of each pulse and the stray current of each detector.

Abstract: A device for measuring a single short pulse includes at least one measuring unit (D1, Dn) comprising a conductive line (L) connected to a set of photoconductors (A, B1-Bp), the line and photoconductors being placed between two nonconductors forming a single support in which the length of the line (x1) separating the photoconductors two-by-two is equal to the product of the propagation speed on the line with respect to the duration of the pulse concerning the number of measurement points, the lifetime of the majority carriers of the photoconductors being selected as being equal to or less than 10% of the duration of the pulse. The device makes it possible to obtain a temporal analysis or the autocorrelation of the pulse which may be an electromagnetic radiation or ionizing pulse or an electric pulse.

Abstract: A device for piling up flat pieces, such as printed and folded box blanks characterized by a piling station having a comb supporting a front edge of a pile of blanks and a rotating sleeve member having an axially extending groove supporting a rear edge of the pile. New blanks are introduced below the pile by a belt conveyor and the blank is lifted into the pile by front lifting elements engaging the belts of the conveyor to lift the front edge of the blank into the pile and sector elements moving to lift the rear portion of the blank into the pile. The comb is reciprocated out of engagement as the lifting elements lift the front portion into the pile and the sleeve is rotated to present the groove so that the back edge of the blank can move past the sleeve and into the pile.

Abstract: An apparatus for the automatic supply of the magazine of the feeder on a slotter/printer with a high production rate for making cases consisting of corrugated cardboard, comprising a device (3, 10, 4) intended for separating a bundle from the top of a stack of blanks (14) by placing this bundle upright on its edge, a retractable device (4) intended for causing the virtually vertical drop of this bundle, and a guide and receiving device (5, 7) making it possible to stop the bundle, still standing on its edge, a device (6) for squaring the bundle laterally after its drop, a device (27, 7, 8) for raising the bundle to a horizontal position, and a device (9) for receiving and discharging this bundle.