Abstract: An apparatus is provided for maintaining a particular temperature differential and/or adjustable temperature gradient between two, possibly variant domains on a first glass, ceramic or synthetic plate, includes a first active thermal element (heater or cooling element) in contact with that plate for adjusting the temperature of a first domain; a ferrofluid, liquid metal, solder etc. droplet and made of a material that has a thermal conductivity higher than the thermal conductivity of the plate, rests on a second plate and in thermal contact therewith; a second active temperature means (heater or cooling element) on the second plate determines the temperature of the droplet; and the droplet is flattened to different degrees to thereby vary the area of contact between the top part of the droplet and the first plate.

Abstract: A microstrip antenna has an electrically conductive base plate carrying an electrically insulating substrate on top of which are a plurality of radiating patches, the improvement comprises establishing a relatively large spacing between the electrically insulating substrate and the base plate at lateral dimensions larger than lateral dimensions of the patches and in the vicinity of the patches and either through local elevations of the insulating substrate or by local indents in the base plate being vertically aligned with the patches.

Abstract: Carrying structure of an active antenna in the aerospace industry uses basically fiber reinforced synthetic material in which heat conductive elements and/or elements conducting electromagnetic waves (electro, optic) are integrated into that support structure for the antenna.

Abstract: A compound or composite powder which includes metallic or ceramic whiskers embedded in a metallic or ceramic matrix as host material, the whiskers have a length between 5.times.10.sup.-6 m and 2.times.10.sup.-4 m and diameters between 2.times.10.sup.-7 m and 1.times.10.sup.-5 m, and are embedded in the matrix with a volume proportion of whisker content between 1 to 50% (by volume), the reference being to a pore-free compacted compound/composite material; the whiskers being made of SiC, Si.sub.-3 N.sub.-4, Al.sub.-2 O.sub.-3 or ZrO.sub.-2 and are embedded in a ceramic matrix being Al.sub.-2 O.sub.-3, Al.sub.-2 O.sub.-3 +from 5 to 40% ZrO.sub.-2 +from 0 to 5% Y.sub.-2 O.sub.-3 or ZrO.sub.-2 with 3 to 15% Y.sub.-2 O.sub.-3 or Si-nitride or Si-carbide. Alternatively the whiskers are made of Si.sub.-3 N.sub.-4, Al.sub.-2 O.sub.-3, ZrO.sub.-2 or W and the matrix is made of W, Mo, Fe, Ni, Co, Cu or an alloy thereof.

Abstract: Heavy metal and oxidizable contaminants are removed from waste water by electrolysis to obtain metallic precipitation of the heavy metal on a stainless steel cathode while simultaneously other contaminants are oxidized on a lead oxide coated titanium or graphite anode; certain additives may be used to break up complex components; subsequently the partially decontaminated electrolyte is passed through an adsorber column for further removal of said contaminants.

Abstract: Amorphous layers are made by decomposing one or several gaseous compounds which include an element or elements to be deposited. These are group 3 and 5 or group 4 elements but amorphous layers of other metals can also be made. The compound is added in a small concentration to a hot gas, preferably hydrogen, helium or argon and a diffusor accelerates the mixture while molecular clusters of the element or elements are formed and impinge upon a target for depositing thereon.

Abstract: A connection is made between inner and outer conductors leading to electrodes to be used for the generation of shock waves for the contact free comminution of concrements (lithotripsy) whereby the inner conductor ends in a tip element and is surrounded by an electrically insulating synthetic sleeve, while the outer conductor is likewise provided with a tip element which is held by a cage that extends from the outer conductor proper; the outer conductor is provided with a plurality of annular grooves and as the metal sleeve is inductively heated synthetic material from an originally underformed insulating sleeve flows into the groove such that an axially immobile connection obtains between the thus inter connected conductors to, thereby, indirectly maintain the desired and gauged spacing between the electrode tip elements.

Abstract: The present invention relates to the locating of concrements in the body of living beings for the purposes of determing where the focal point of a shock wave reflector has to be positioned so that it may comminute the concrement, and more particularly the invention relates to a system for locating concrements under utilization of X-rays in combination with an ultrasonic device.

Abstract: Subject of the invention is a diesel-soot filter with catalytically-active coating for reducing the ignition temperature of the diesel-soot deposited on a filter, the active substance of the coating being a metal-doped zeolite.

Abstract: The present invention relates to a method for topographically mapping the surface of the Earth under utilization of measuring the altitude by means of radar, and under further utilization of a synthetic aperture for the radar, as well as an electronically controlled antenna lobe. In accordance with the preferred embodiment of the present invention, it is suggested to conically pivot the antenna lobe around a nadir, whereby pivoting of the center line follows a path such that the line constitutes the geneatrix of a cone.

Abstract: An improved dry bridge kit, composed of individual bridge bays of cross-sectional U-shape and of a cross-sectionally H-shaped traversing beam, the improvement comprising that the bridge bays are composed of a central part and of two side parts, the side parts containing hollow parallelipipedic track ways, and being foldable for transport underneath the central part. When launching the bridge, first the traversing beam is assembled and launched and then the individual bridge segments are coupled together and moved over the tranversing beam. The traversing beam remains as a bridge support element.

Abstract: Arc discharge for the production of shock waves for purposes of contactless, non-invasive comminution of concrements in the body of a living being, wherein the two electrodes have flattened tips of different diameter, the one leading to the inner conductor being larger, preferably by about 1.2:1.

Abstract: A foldable and deployable antenna reflector includes a central panel having along its circular periphery a circular-sawtooth shaped contour with ramplike edges separated by radial cut backs and a plurality of similar, rigid segments, each having a foot edge are respectively hinged by means of a single hinge axis to the ramplike sawtooth edges.

Abstract: A compound powder being comprised of a noble metal and of a nonnoble metal oxide is produced under atomization of salts of these metals in a watery solution and under further utilization of a hot reactor wherein a droplet containing gas flow is moved inside the reactor by operation of a pressure differential produced by a water pump, the powder particles are gravity separated from reaction gases by gas flow reversal at a temperature above the dew point of the gas and the gas is scrubbed following condensation of any water vapor.

Abstract: Pane or foil with controllable transparency and light transmission comprises a layer configuration between two transparent carriers such as glass panes, foils or the like; transparent electrodes are disposed on the carriers; a tansparent electrolyte and an active polymer layer are disposed between the electrodes; the active polymer layer has light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical doping reaction; preferably an additional transparent layer is included to serve as reversible source for storage and yielding of ions, the additional layer is juxtaposed to the electrolyte.

Abstract: A wheel-like apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions having spokes which contain at least one reaction chamber for solid particles. Gas is fed into the chamber in radial inward direction for fluidizing action of the particles against any centrifugal force while liquid is sprayed into the chamber radially inwardly or outwardly. Gas plus vaporized liquid is extracted from the chamber in radial inner points and the gas is circulated back after separating the vapor from the gas.

Abstract: A highly concentrated silver salt suspension and tin salt suspension from which a silver and tin oxide powder can be made under utilization of the reaction spray method is made by adding in small steps a tin II salt solution into a small volume of concentrated nitric acid while maintaining a temperature below 40 degrees C. to obtain an injection suspension of a tin II salt solution, the injection suspension is then mixed with about a three fold quantity (volume) of concentrated 65% nitric acid, the latter mixture is then added in small steps to a watery citrate solution and combined with tin granules until all tin granules are dissolved and changed into a tin IV oxide hydrate suspension; the completed tin IV oxide hydrate suspension as per the preceding step is mixed with a watery silver nitrate solution.

Abstract: A compound powder being comprised of a noble metal and of a nonnoble metal oxide is produced under atomization of salts of these metals in a watery solution and under further utilization of a hot reactor wherein a droplet containing gas flow is moved inside the reactor by operation of a pressure differential produced by a water pump, the powder particles are gravity separated from reaction gases by gas flow reversal at a temperature above the dew point of the gas and the gas is scrubbed following condensation of any water vapor.

Abstract: The electrode is made by depositing a slurry as a first layer onto a solid electrolyte ceramic of stabilized ZrO.sub.2. The slurry is a blend of a powder of a ceramic electronic conductor such as La.sub.1-x Ca.sub.x Mn.sub.1+y 03 or La.sub.1-x SR.sub.x Sr.sub.x Mn.sub.1+y 03 and a powder of a ceramic ionic conductor being of the same kind as the electrolyte. Onto the first layer a slurry of powder of the same ceramic electronic conductor used in the first slurry is deposited as a second layer. The layers are deposited by spray coating or dipping and are fired simultaneously thereafter or sequentially following respective application.

Abstract: A process is disclosed for purifying gases and liquids and/or for recovering particles contained or substances dissolved therein or for implementing other technological process procedures. Technological process procedures take place in exchangeable, mobile, individual vessels (1,2,3,4) chargeable with active known substances (for instance ion exchange resins) and/or provided with technological process assemblies (for instance mechanical filters), the vessels being mutually connected and forming a reaction column (7). The vessels (1,2,3,4) filled with the same or with different substances are passed by one medium or by several separate media partial streams (X,Y). In the case of several partial streams, the media partial streams (X,Y) always pass part of the vessels (1,2,3,4) or, after mixing, the resulting media mixture (X+Y) passes the other part of the vessels (1,2,3,4).