The invention relates to a patterned semiconductor body in which silicon molecular-beam epitaxy (Si-MBE) is first used to generate a step between a monocrystalline Si semiconductor region and adjacent polycrystalline silicon. This step is removed by an oxidation process applied to the whole area and a subsequent etching process. An essentially planar surface is produced having a step height of, fo...

The invention relates to an illuminating apparatus for compact fluorescent lamps, which is characterized in that the compact fluorescent lamps are arranged in a closed configuration forming a fluorescent unit. The luminaire units have a cap support assigned in common to the compact fluorescent lamps. Each compact fluorescent lamp is assigned an individual reflector.

A thin film capacitor is formed of a thin crystalline electrically insulative or semiconductive substrate. With the insulative substrate a thin conductive metal layer is deposited on the substrate and a thin film of a crystalline strontium barium niobate deposited on the thin conductive metal layer so that its 2.77 ANGSTROM spaced atomic planes are oriented in a non-perpendicular manner to the su...

An adhesive composition comprises (a) 1 part by weight of a compound of the general formula: where each of R1 and R2, which are the same or different, represents a hydrogen atom, a C1-6 hydrocarbon or halogen-substituted hydrocarbon group, a group of formula COOR min where R min represents a C1-20 hydrocarbon or halogen-substituted hydrocarbon group or a halogen atom; R3 represents a hy...

An electromagnetic precision rotary drive for a disk-shaped rotor. Along a peripheral annular zone of the rotor an armature band with a periodical pattern is disposed, which, within each period, varies continuously between the inner and the outer edge of the annular zone. The rotor is surrounded by a magent support, which carries at least one permanent magnet. If the magnet support is moved back a...

The circuit according to the invention is characterised by the fact that, for the purpose of image processing in the Fourier space, a number of individual processors of simple structure are connected in parallel in a regular logic and are connected via a pipeline. The circuit according to the invention thus has the advantage that it can also process high-resolution images in real time.

3-[(Z)-1-Propen-1-yl]-7-acylamido cephalosporins in which the 7-acyl group is phenylglycyl or substituted phenylglycyl are orally active antibiotics against Gram+ and Gram- bacteria.

PURPOSE:To apply the same print as the printing by a few print element head by grouping part of print elements of a dot printer in operation into number of control signals and driving print elements of each group in common. CONSTITUTION:In printing many characters based on a command from an external electronic device 26, for example, a character code signal relating to characters by one line at fi...

A method of producing articles from polyurethane foam which comprises forming a core of low density material, placing the core within a mould so that at least part of the core is spaced apart from the wall of the mould and injecting materials to form a skin of polyurethane foam into the space between the core and the wall of the mould, the skin having a density greater than the density of the core...

A fireguard plate contains from 10 % to 14 % by volume of an organic binder, from 40 % to 60 % by volume of hollow inorganic microstructures and from 26 % to 50 % by volume of aluminium hydroxide. The fireguard wall is manufactured by adhesive bonding or by cemented bonding of such plates.

The multiple-chamber unit for purifying waste water is provided with an activation shaft (2) having a central riser pipe (3) and having a feed pipe (1). At the bottom end of the riser pipe (3) the waste water flowing in through the feed (1) is aerated, as a result of which the water which has become less dense ascends, so that a vertical circulation is formed. The activated sludge collected at the...

The process entails the sludge, where appropriate after previous biological treatment, being mixed with complexing agents and enzymes, being dewatered and being mixed with solidifying aids, and is characterised in that the complexing agent is added in excess over the amount of metals contained in the raw sludge, in that a slow-acting hydraulic binder is added to the sludge before the dewatering, a...

In the case of a method for carrying out an absolute manual blind landing by a pilot, the phases of the landing approach are displayed as follows: 1. From the point (7.0 nm) remote from the airport to a point (0.5 nm) close to the runway and situated in front of the start of the runway, the screen (1) displays a part of the runway (3) and the associated centre line (CL) as well as a line (GS), w...

A foreign object removal system is disclosed including a removal chamber projecting laterally from the combustion chamber of a fluid bed reactor and connected via a downwardly directed pipe to a material flow control plenum chamber which includes means for fluidizing the mixture of inert fluid bed particles and foreign objects at the bottom of the pipe for lateral movement into an air classifier w...

A method of producing printing plates having microdots in nonimaged areas is disclosed. The method includes placing a photocurable polymer composition with oxygen inhibitor characteristics on a backing sheet and spacing an image carrier with a microdot pattern from the polymer composition and applying actinic radiation. The image carrier may additionally contain the printing image.

1. A device for aerating flowing media, in particular water, having a feed pipe, a nozzle, an aerating section with thin-walled frustoconical pipe sections arranged concentrically one above the other therein and spaced from one another and a down pipe post-connected thereto, characterised in the frustoconical pipe sections (9) in the region of their base circles on the inner side of the housing wa...

The invention relates to a combination of additives providing original functions, with the combination enabling fluid loss to be controlled effectively. The combination consists mainly in a polynaphthalenesulfonate and an acrylic terpolymer. Its main advantage lies in its suitability for effectively controlling fluid loss regardless of whether the medium is salted-free, slightly salty, or very sal...