Abstract: The method comprises measuring the heat transfer between a specimen of the substance in condensed phase and an ambient gas. The heat transfer is detected by measurement of the amplitude of the angular movement of a pencil of light which is directed substantially parallel to the surface of the specimen subjected to energization variable in time, and which passes through an area located close to said surface. The device comprises a specimen support and a monochromator.

Abstract: The present invention relates to a method and installation for supplying a machine for linear treatment such as a sewing machine for joining flexible elements such as textile pieces, said method comprising the steps of gripping at least one flexible element by a gripping zone thereof and placing and maintaining this gripping zone at a predetermined fixed spot by means of a first gripping device (fixed clips); gripping the flexible element by said gripping zone thus positioned by means of a second gripping device (carriage provided with clips); displacing the flexible element by means of the second gripping device up to driver members of the machine for linear treatment.

Abstract: The present invention relates to an artificial heart which comprises a rotary piston shaped like a trilobar or bilobar hypotrochoid or epitrochoid and a body which defines a cavity which is the rotor casing when the latter is driven both in circular translation of radius e equal to the eccentricity of the trochoid and in rotation about its center with an angular velocity of which the number of revolutions per minute is the same as the pulse of the patient.

Abstract: The measuring head enables the production of measuring signals relating to electrical activity and measuring signals relating to an ionic or physico-chemical activity, notably pH, and is designed to be located on or in parts of a living body, notably on the head of an unborn infant. It comprises an insulating body bearing fastening claws. At the moment of positioning, the insulating body introduces actively an electrode sensitive to the electrical activity and at least one electrode sensitive to an ionic or physical activity. These electrodes are constructed in needle form, body body having also a reference electrode associated with the electrode sensitive to the ionic or physical activity.

Abstract: PCT No. PCT/FR 78/00046 Sec. 371 Date Aug. 2, 1979 Sec. 102(e) Date Aug. 2, 1979 PCT Filed Dec. 7, 1978 PCT Pub. No. W079/00353 PCT Pub. Date June 28, 1979A device for detecting and localizing soft gamma and X radiations, comprising an enclosure 10 provided with a window 11 opaque to light and transparent to incident radiations, occupied by a noble gas and provided with electrodes for causing the electrons to drift towards a secondary photon creation space.In said space there reigns an electric field having sufficient value to cause the formation of secondary photons by excitation then de-excitation of the atoms of the noble gas. The secondary photons pass through a transparent window 12 and are converted into photons in the close UV or visible spectrum. The scintillations are localized by PM tubes 23 and 24.

Abstract: Osteosynthesis parts are made of an absorbable polymer composition consisting of a matrix of lactic acid homopolymer, or a copolymer very high in lactic acid units, having discrete reinforcement elements embedded therein. The reinforcement elements are made of glycolic acid homopolymer or copolymers predominant in glycolic acid units. Such a composition may be shaped with a minimum of polymer degradation into osteosynthesis parts exhibiting good resilience, shock resistance, and tensile strength.

Abstract: A digital-data-transmission system includes a network formed from a multiplicity of nodes each having at least three pairs of input/output terminals of which one is connected to an associated subscriber station while the others are connected to respective other nodes so as to enable a binary message from any subscriber station to reach all other subscriber stations. The nodes form a plurality of pathways, at least some of them of different lengths, between any two subscriber stations yet a decision circuit at each node selects only one input terminal thereof for retransmission of an incoming message to all the output terminals of the node, such selection being based on the order of arrival or--in the case of simultaneous arrival--on a predetermined order of preference. The several subscriber stations may be equipped with respective controllers establishing time slots individually allocated thereto in order to prevent the simultaneous emission of messages from two or more stations.

Abstract: A chiral .alpha.-amino acid having a hydrogen substituent in a position alpha to the carboxylic function thereof is prepared by subjecting a corresponding optical antipode with a chiral amino acid to a strong base whereby the proton in a position alpha to the carboxylic function is removed and thereafter reacting the resulting product with a chiral protonation agent.

Abstract: A converter and method of converting thermal images into secondary images, e.g. visible images. The infrared radiation emitted by an object is focused by an optical system to form a thermal image on the free surface of a thermal radiation absorbing layer to one side of a liquid-liquid interface which has low surface tension and is a mixture of two liquid partially miscible at operating temperature and pressure. To convert the thermal image to a visible a parallel beam of light or a beam of light from a point source in the visible range is directed to the other side of the interface and, depending on the selected indices of the interface liquids and whether a prism is used or not; is either transmitted or reflected. The emerging transmitted or reflected beam is then received on a screen or in a detection system where variations of the optical properties of the emerging beam are observed.

Abstract: Apparatus for stacking and storing a plurality of flat objects, such as letters. The apparatus includes at least one storage box and a loading device designed to transport the flat objects from a source and to project them into the interior of the box. The box and loading device are respectively positioned so that the flat objects are projected into the box at an incline with respect to its bottom and a portion of each object's leading edge impacts a stopping surface formed in one of the side walls of the box. This impact imparts a rotational couple to the object which brings the lower edge of the object into firm engagement with the box bottom. The object is then moved onto the stack of similar objects being formed in the box, either by gravity or an auxiliary device. In one preferred embodiment, relative movement is provided between the box and loading device so that the objects can be projected into the box at a point close to the top of the stack.

Abstract: The invention relates to a new method for increasing the resistance of the organism to pathogenic germs and to compositions to carry out said method.In this method, one administers an effective dose of N-acetyl-muramyl-L-alanyl-D-isoglutamine or analogs responding to the formula ##STR1## wherein R.sub.1 is OH or NH.sub.2, R.sub.2 is OH, NH.sub.2 or a peptidic residue containing from 1 to 6 aminoacids,with the proviso that R.sub.1 and R.sub.2 are not simultaneously NH.sub.2.

Abstract: Comprising a plurality of assembled solar energy collector elements. Cold liquid is supplied at one end and water heated by the solar energy is drawn off at the other end of the device. The liquid circulates through the device in contact with an absorbent mat of intermingled fibers of dark color which is exposed to the solar radiation through at least one translucent sheet which creates a glasshouse effect. The mat guides the flow of liquid by the effect of capillarity and gravity during the heating of the liquid.

Abstract: A method of automatically cutting longitudinally animal carcasses for food. A mobile holder is horizontally moved transversely in one direction with respect to a conveyor chain until a first bearing element is brought opposite the inner surface of the animal's vertebral column, a second bearing element is pivoted and pressed against the outer surface of the vertebral column, cutting means is actuated, the mobile holder is moved vertically downwards until the cutting means reaches a predetermined position with respect to the carcass. The mobile holder is then moved horizontally and transversely in the other direction with respect to the conveyor chain, after which the mobile holder is moved vertically upwards to a predetermined position.

Abstract: A digital advance control system of the type including a digital computer which receives input data of various engine operating parameters including the number of pulses corresponding to the ignition angle from a tachometer device in which the data from the tachometer device is to be interpolated. The data to be interpolated is applied to an attenuator circuit which includes a subtracter which receives the higher order bits of the data and a reversible counter whose higher order bits are also applied to the subtracter. The output of the subtracter is applied to a preselection counter or a binary rate multiplier which controls the application of clock pulses to the reversible counter.

Abstract: The invention relates to novel water-soluble compounds, process for their preparation, methods of therapeutic treatment therewith and pharmaceutical compositions containing them. The compounds correspond to the formulae (III) and (IV) below or their mixtures in molar proportions of about 4/1, in which formulae X represents a RCO radical and Y represents a hydrogen atom or a RCO radical, or again in which Y represents a RCO radical and X represents a hydrogen atom or a RCO radical, R being an alkyl or alkenyl radical containing 11 to 19 carbon atoms in a straight or branched chain. ##STR1## The compounds are useful as immunological adjuvants.

Abstract: Skin diseases such as psoriasis, namely: psoriasis punctata, herpes simplex and mycosis fungoides are treated by administering (either topically or orally) to an afflicted subject an effective amount of monofunctional derivative of the formula ##STR1## wherein R.sub.1 is --COOR.sub.3 or --CN; R.sub.2 is --H or --CH.sub.3 ; and R.sub.3 is --H, --CH.sub.3 or --CH.sub.2 CH.sub.3.

Abstract: The invention relates to the storing of hydrogen in hydrides of metallic alloys.These alloys include besides magnesium an element chosen from the lanthanides and/or element of group IIa of the periodic classification of elements. The magnesium may be, furthermore, possibly substituted among others by a transition metal. These alloys allow the reactivity of the magnesium to be increased in relation to the hydrogen during the hydrogen absorption process as shown by the curves of FIG. 1.Application: supplying hydrogen engines or other hydrogen energy receiving or transforming means with hydrogen.

Abstract: The invention provides a microwave feeder or applicator, that is to say a resonant chamber for coupling to a source of microwaves, arranged for the microwave treatment of a sample of material, comprising two main conductive walls extending parallel to a common axial direction and each having two projections and a central part joining the two projections, the projections of the two walls facing one another in pairs whereas the central parts of the two walls likewise face one another and define a region in which there is a local increase in the distance between the two main walls; a first conductive end wall forming a short-circuit and extending in a plane forming a cross-section of the main walls; a second conductive end wall forming a second short-circuit extending in a plane forming a cross-section of the main walls, and a coupling means for supplying microwave energy to the feeder, the dimensions of the cavity formed by the main end walls being arranged so that the cavity resonates almost exclusively in the

Abstract: This invention relates to a method and a device for high-speed production of aromatic essential oils from perfume-generating plants. The device comprises at least one enclosure 1 provided with means 2 for crushing said plants into a slurry, heating means 5, means 6 for feeding said plants thereto, means 7 for drawing off said slurry, a distillation column 9 and at least a condensing apparatus 15, 20 to form at least one condensate of essential oils. This device is applicable for industrially recovering essential oils from perfume-generating plants such as jasmine, orange flower, mint, ginger, aniseed, etc.

Abstract: The invention relates to a carburettor comprising a conduit with an air-intake and a fuel-introduction device in this conduit, the latter being intended to supply a carburetted fuel mixture to at least one combustion chamber of an explosion engine, and a throttle-valve means mounted in the conduit for controlling the supply flow-rate of carburetted mixture to the combustion chamber, the conduit further comprising a device with surfaces distributed over the transverse section of the conduit, this device being located in the conduit between the fuel-introduction device and the throttle-valve and providing a means of complete or almost complete vaporization of the fuel, thus avoiding inequalities of distribution of the richness of the mixture over the transverse section of the conduit, on the downstream side of the throttle-valve.