Abstract: A monitoring device of environmental parameter values of an environment surrounding a system. The device includes a sensor to these parameters, and includes a means of transmission, in real time, of each measurement to a processing unit. The processing unit is installed in the system and includes the means of filtering the transmitted measurements. This processing unit comprises the means for determining cycles from the measurements thus simplified as well as the means for calculation, in real time, of a length of consumed life of the system, from the thus determined cycles.

Abstract: A method and apparatus for testing integrated circuits by subjecting the circuits to an electromagnetic disturbance. A probe is provided, equipped with a horn cover designed to be applied to a printed circuit on which an integrated circuit is mounted. Within this horn cover, a core shield channels the electrical field that is deployed in a zone in which connections from the integrated circuit to the printed circuit that it carries are situated. The effectiveness of the electromagnetic interference injected in the integrated circuit is increased to the point that a true measurement of the resistance of this integrated circuit to the electromagnetic interferences may be carried out.

Abstract: In this dispenser, the housing (1) is divided by means of a separation partition (9) into a lower compartment (12) containing a roll of clean towel (28) and an upper compartment (11) containing a shaft (45) around which the strip of used towel is wound under drive from a drive roller (49). The front wall (4) of the housing includes a lower portion (4a), whose top edge (4c) co-operates with an outside extension (9b) of the partition (9) to form an outlet slot (14) for the strip of towel, and an upper portion (4b) which is movable to give access to the upper compartment (11) and whose bottom edge (4d) co-operates with the extension (9b) to form an inlet slot for the strip of towel. Two feed rollers (31, 32) placed in the outlet slot (14) are respectively supported by the partition (9) and by the lower portion (4a) of the front wall (4), one of which rollers is movably mounted relative to the other to give access to the lower compartment (12) of the housing.

Abstract: A navigation system for an autonomous vehicle (1). It has a lateral row of detectors (2). The ground has discontinuous buried magnetic markers (3) setting up a localized field which in turn produces an induced current which varies in the detectors (2) in dependence on their position. The markers, formed by magnets (151-155) of selected polarity and number, form magnetic signatures which contain items of information for the vehicle. The on-board vehicle computer (1) can deduce its lateral position and the controls to be carried out to accomplish its mission.

Abstract: The motorized trolley-type golf cart of the invention comprises a chassis made up from at least two supports assembled to each other by a swivel type connection device constituted by a male portion and a female portion which are engaged in each other and which are fixed to respective ones of the two supports of the chassis. One of the supports carries two drive wheels, an electric motor, and a battery, while the other support is essentially constituted by a tiller bar which is foldable and terminated at one end by a grip having a manual control member which is connected to the motor by an electrical connection which includes an intermediate connector whose two halves are fixed to respective ones of the portions of the connection device.

Abstract: A process for the production of a series 7000 aluminum alloy (Al-Zn-Cu-Mg) with a high level of mechanical strength and good ductility, by spray deposition. The object is the production of aluminum alloys having an ultimate stress.gtoreq.800 MPa and an elongation.gtoreq.5%, as well as the production of alloys which are reinforced by ceramic particles. According to the process, a solid alloy is formed by spray deposition, the alloy is transformed in the hot condition at between 300.degree. and 450.degree. C. and possibly in the cold condition, and the transformed alloy is subjected to solution treatment, quenching and aging.

Abstract: The invention relates to an aluminum alloy component retaining a good fatigue strength when used hot. The alloy contains by weight 11 to 26% silicon, 2 to 5% iron, 0.5 to 5% copper, 0.1 to 2% magnesium, 0.1 to 0.4% zirconium and 0.5 to 1.5% manganese, the alloy in the molten state is subjected to a fast solidification means, bringing it into the form of parts of components and optionally subjecting the latter to a heat treatment at between 490.degree. and 520.degree. C., followed by water hardening and annealing at between 170.degree. and 210.degree. C. Components formed of the alloy are used more particularly as rods, piston rods and pistons.

Abstract: The invention relates to a process for the production of aluminum alloy components retaining a good fatigue strength when used hot.This process consists of producing an alloy containing by weight 11 to 26% silicon, 2 to 5% iron, 0.5 to 5% copper, 0.1 to 2% magnesium, 0.1 to 0.4% zirconium and 0.5 to 1.5% manganese, subjecting the alloy in the molten state to a fast solidification means, bringing it into the form of parts or components and optionally subjecting the latter to a heat treatment at between 490.degree. and 520.degree. C., followed by water hardening and annealing at between 170.degree. and 210.degree. C.These components are used more particularly as rods, piston rods and pistons.

Abstract: The invention comprises a process for co-sintering of conductors of copper or copper-based alloy and a ceramic substrate, the substrate being produced from a ceramic powder of cordierite type, having a sintering temperature of lower than 950.degree. C.The process comprises the following steps:(a) shaping of the ceramic substrate from a powder of cordierite type,(b) deposit of copper on the ceramic substrate, and(c) co-sintering heat treatment, during which the organic compounds are removed, the copper is regenerated in a reducing atmosphere, and co-sintering of the conductors and the substrate is carried out in a flow of moist inert gas with a plateau at a temperature of between 1065.degree. and 1080.degree. C.The process according to the invention makes it possible to produce substrates of cordierite with internal and external conductors.

Abstract: The invention concerns adducts of 1,8-dihydroxy-9-anthrone, of formula: ##STR1## in which: R.sub.1 and R.sub.2, taken together, form one of the following divalent residues: ##STR2## R.sub.3, R.sub.4, R'.sub.4, R.sub.5 and R'.sub.5 representing H, an alkyl group having 1-8 C with the exception of R.sub.5 =R'.sub.5 =CH.sub.3, a monohydroxyalkyl group with 2-8 C, possibly interrupted by one or more oxygens, a cycloalkyl group having 4-6 C, a phenyl group, or a benzyl group.Utilization of the compounds (I) in human or veterinary medicine, in particular in the treatment of psoriasis and or warts, and in cosmetics.

Abstract: Mono, di and tri-esters of 1,8-dihydroxy-10-phenyl-9-anthrone or -9-anthranol have the formula ##STR1## wherein p is 0 or 1,(a) when p=0, t=1 and R.sub.2 represents hydrogen or --COR.sub.3,(b) when p=1, t=0 and R.sub.1 and R.sub.2 each independently represent hydrogen or --COR.sub.3,R.sub.3 represents linear or branched alkyl having 1-17 carbon atoms, cycloalkyl, phenyl or phenyl substituted by lower alkyl, lower alkoxy, halogen, a nitro function, --CF.sub.3 or a hydroxyl function, and mixtures of said esters. These esters are prepared by reacting 1,8-dihydroxy-10-phenyl-9-anthrone with an activated form of an acid. The esters are useful in human or veterinary medicine and in cosmetic compositions.

Abstract: The invention concerns 1,8-dihydroxy-9-anthrones substituted in the 10-position of the formula: ##STR1## in which R.sub.1 represents a group taken from the set constituted by: ##STR2## wherein R.sub.2 represents H, C.sub.1-8 alkyl, C.sub.1-3 mono- or poly-hydroxyalkyl, carbamoyl or phenyl,R.sub.3, R.sub.4, and R.sub.5 represent H, C.sub.1-8 alkyl, C.sub.3-8 mono- or poly-hydroxyalkyl, possibly interrupted by an oxygen, C.sub.3-6 cycloalkyl, or R.sub.3 and R.sub.4 form a divalent group: --(CH.sub.2).sub.(4 or 5) --, --(CH.sub.2).sub.2 --O--(CH.sub.2).sub.2 --, or --(CH.sub.2).sub.2 --N(R.sub.8)--(CH.sub.2).sub.2 --, R.sub.8 being H, --CH.sub.3, or --CH.sub.2 CH.sub.2 OH,R.sub.6 represents --CO.sub.2 R.sub.5, --CN, CHO, --CONH.sub.2, or --CONH--CH.sub.2 OH,and R.sub.7 and R'.sub.7 are H or --CH.sub.3, and their optical isomers.Utilization of the compounds (I) in human or veterinary medicine, in particular in the treatment of psoriasis and of warts, in cosmetics.

Abstract: A system determines the movement of a track vehicle along the ground, the track vehicle having at least a first rotatable, endless track for supporting the vehicle on the ground, a drive for causing the movement of the vehicle, and a turning system for changing the direction of the movement of the vehicle. The system has a first traction-improvement device for mounting on the track vehicle. It bears on an inner-surface side of the first track with sufficient pressure for a small-surface portion on the opposite side of the first track to engage the ground with a higher pressure than any other portion of the first track, whereby to locate a pivoting axis of the track vehicle in the vicinity thereof.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and represent a straight-chain or branched alkyl group of 1 to 15 carbon atoms, a cycloalkyl group of 3 to 6 carbon atoms, a 2-furyl, 3-furyl, 3-pyridyl, 4-pyridyl or 2-thienyl group or an aromatic group of the formula ##STR2## wherein X, Y and Z are the same or different and represent hydrogen, alkyl of 1 to 3 carbon atoms, trifluoromethyl, alkoxy with 1 to 4 carbon atoms, halogen, nitro or hydroxy groups are useful as pharmaceutical, veterinary and cosmetic agents.

Abstract: System for the construction and utilization of multitubular structures called modules A, whose joined elements (2) have a cylindrical or prismatic shape. The dimensions (L, l) transversely to the axis (X--X) of the elements (2) are greater than the dimension (h) along this axis (X--X). Several joined modules constitute a line of modules, used to close off a river. Several lines of modules can be superimposed to build an overspill structure of a certain height. Structure is provided to float a line of modules into place above its sinking site. Modules can also be used advantageously for certain works built on dry ground.

Abstract: The invention concerns 1,8-dihydroxy-9-anthrones substituted in the 10-position of the formula: ##STR1## in which: R.sub.1 represents a group taken from the set constituted by: wherein R.sub.2 represents H, C.sub.1-8 alkyl, C.sub.1-3 mono- or poly-hydroxyalkyl, carbamoly or phenyl,R.sub.3, R.sub.4, and R.sub.5 represent H, C.sub.1-8 alkyl, C.sub.3-8 mono- or poly-hydroxyalkyl, possibly interrupted by an oxygen, C.sub.3-6 cycloalkyl, or R.sub.3 and R.sub.4 form a divalent group: --(CH.sub.2).sub.(4 or 5) --, --(CH.sub.2).sub.2 --O--(CH.sub.2).sub.2 --, or --(CH.sub.2).sub.2 --N(R.sub.8)--(CH.sub.2).sub.2 --, R.sub.8 being H, --CH.sub.3, or --CH.sub.2 CH.sub.2 OH,R.sub.6 represents 13 CO.sub.2 R.sub.5, --CN, --CHO, --CONH.sub.2, or --CONH--CH.sub.2 OH,and R.sub.7 and R'.sub.7 are H or --CH.sub.3, and their optical isomers.Utilization of the compounds (I) in human or veterinary medicine, in particular in the treatment of psoriasis and of warts, and in cosmetics.

Abstract: 1,8-dihydroxy-9-anthrone derivatives, substituted in the 10-position by an unsaturated radical, are described which have utility as ingredients in human and veterinary pharmaceutical and cosmetic preparations and which are compounds of the structural formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a --CO.sub.2 R'.sub.2 radical,R.sub.2 and R'.sub.2 identical or different, represent a hydrogen atom, a linear or branched chain alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical having 4 to 6 carbon atoms or a benzyl radical,or R.sub.1 and R.sub.2 taken together form a radical --CO--, andn is 0 or 1,with the proviso that when n is 0 and R.sub.1 is --CO.sub.2 R'.sub.2, R.sub.2 and R'.sub.2 do not simultaneously represent the radical CH.sub.3,and the isomers of the compounds of formula (I) and mixtures thereof.

Abstract: An anti-acne composition comprises in a carrier suitable for topical application to the skin an active compound having the formula ##STR1## wherein R.sub.1 is linear or branched alkyl having 1-12 carbon atoms, mono- or polyhydroxyalkyl having 2-5 carbon atoms, alkenyl having 3-6 carbon atoms, cycloalkyl having 3-6 carbon atoms, or a radical of the formula ##STR2## wherein n is 0 or 1, m is 1, 2 or 3, R.sub.2 is hydrogen or lower alkyl having 1-3 carbon atoms and R.sub.3 represents hydrogen, alkyl having 1-4 carbon atoms, nitro, --CF.sub.3 or halogen. The acid salts of these active compounds can also be used.

Abstract: The invention concerns adducts of 1,8-dihydroxy-9-anthrone, of formula: ##STR1## in which: R.sub.1 and R.sub.2, taken together, form one of the following divalent residues: ##STR2## R.sub.3, R.sub.4, R'.sub.4, R.sub.5 and R'.sub.5 representing H, an alkyl group having 1-8 C with the exception of R.sub.5 =R'.sub.5 =CH.sub.3, a monohydroxyalkyl group with 2-8 C, possibly interrupted by one or more oxygens, a cycloalkyl group having 4-6 C, a phenyl group, or a benzyl group.Utilization of the compounds (I) in human or veterinary medicine, in particular in the treatment of psoriasis and or warts, and in cosmetics.

Abstract: 1,8-Dihydroxy-9-anthrone derivatives, substituted in the 10-position by an unsaturated radical, are described which have utility as ingredients in human and veterinary pharmaceutical and cosmetic preparations and which are compounds of the structural formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a --CO.sub.2 R'.sub.2 radical,R.sub.2 and R'.sub.2 identical or different, represent a hydrogen atom, a linear or branched chain alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical having 4 to 6 carbon atoms or a benzyl radical,or R.sub.1 and R.sub.2 taken together form a radical --CO--, and n is 0 or 1,with the proviso that when n is 0 and R.sub.1 is --CO.sub.2 R'.sub.2,R.sub.2 and R'.sub.2 do not simultaneously represent the radical CH.sub.3, and the isomers of the compounds of formula (I) and mixtures thereof.