Abstract: A protective device and method for producing bores, especially very small bores, that open out into a hollow space in a tubular component are provided. The protective device is embodied as a hollow body that is at least partially energy reducing for laser beams. Pursuant to the method, the wall of the component is perforated with a laser beam to produce the bore. After perforation of the wall, the energy of the laser beam is reduced within the hollow space of the component to such an extent that the laser beam does not damage the wall of the hollow space that is disposed across from the produced bore.

Abstract: A concentrated aqueous solution of a p-phenylenediamine derivative, which a) has a pH higher than 12.5, b) contains 0.4 to 1.1 mol p-phenylenediamine derivative/litre, c) contains 0.05 to 2 mol of an antioxidant/litre, d) contains at most 35% by weight of organic solvents with respect to the total solution, e) contains at most 50 mmol sulphate ions/litre and f) is single-phase, is suitable for the production of different colour developer formulations.

Abstract: A device for controlling a motor vehicle occupant protection system. Such a device has a control unit with an encoder for encoding messages and a transmitter for transmitting the encoded messages in the form of output signals. The encoded messages include a first encoded message having a first number of positions and a second encoded message having a second number of positions, the first number of positions being smaller than the second number of positions. In this case, at least one of the encoded messages may be provided with an error-correction code.

Abstract: A configuration for controlling a restraining device has a first control unit which controls two electrically controllable power switches of a firing circuit connected to the restraining device as a function of acceleration. A third electrically controllable power switch is provided in the firing circuit and is controlled by a second control unit as a function of the acceleration.

Abstract: An actuating device for a brake system of a vehicle a housing and at least one piston slide positioned in the housing for loading the brakes with a pressure medium. The brake system has brakes for the vehicle wheels and a control unit connected to the brakes for sending control signals to the brakes. The brakes are supplied via brake lines with the pressure medium and have wheel sensors connected to the control unit. The wheel sensors determine the rotational velocity of the vehicle wheels during a braking operation and send a signal related to the rotational velocity to the control unit. At least one piezoelectric element is positioned in the housing of the actuating device for actuating the at least one piston slide. The at least one piezoelectric element is connected to the control unit of the brake system.

Abstract: A process for obtaining hirudin derivatives from E. coli secretor mutants which entails:(1) construction of a recombinant vector on which there is located the gene coding for a hirudin derivative directly downstream of a DNA section which codes for a bacterial signal peptide;(2) transformation of an E. coli secretor mutant with the recombinant vector constructed in step (1);(3) cultivation of the transformed cells in a medium; and(4) obtaining the hirudin derivative from the medium; anda recombinant vector which contains one or more copies of a gene construct which codes for a protein consisting of a bacterial signal peptide and of a hirudin derivative, and a hirudin derivative with the N-terminal amino-acid sequence A-(SEQ ID NO: 5) in which A represents Ala, Gln, His, Phe, Tyr, Glu, Ser, Asp or Asn.

Abstract: The invention generally relates to the technical field of devices using the effect to emit electrons out of a solid into vacuum due to high electric field strength. Such devices are usually called field emission devices. The invention relates more specifically to the structure of a field emission device, to the method of fabricating a field emission device, and to the use of a multitude of field emission devices in the technical field of flat panel displays. The inventive structure of a field emission device (15) comprises an individual series resistor for each electron emitting tip (1), wherein the series resistor is formed by the tip (1) itself. The tip (1) comprises a body (9) of a first material with high resistivity and an at least partial coating (7) of a second material with low work function, wherein the body (9) of the first material forms the series resistor and the coating (7) of the second material provides for electron emission.

Abstract: The invention relates to a resonant sensor with a vibrating body (10) for the determination of at least two physical values characterised by the fact that the vibrating body (10) has at least two partial bodies (1, 2), the vibrating body as a whole (10) being appropriate for the determination of one of the two values and one of the partial bodies (1, 2) or a combination of several partial bodies is appropriate for the determination of the other of the two values. The individual partial bodies (1, 2) of the vibrating body can differ both in their geometric, dimensions and or in the materials of which they are composed. The measurement of the individual physical values takes place in a fundamental mode of the vibrating body as a whole (10) or of the relevant partial body (1, 2).

Abstract: The invention generally relates to the technical field of devices using the effect to emit electrons out of a solid into vacuum due to high electric field strength. Such devices are usually called field emission devices. The invention relates more specifically to the structure of a field emission device, to the method of fabricating a field emission device, and to the use of a multitude of field emission devices in the technical field of flat panel displays. The inventive structure of a field emission device (15) comprises an individual series resistor for each electron emitting tip (1), wherein the series resistor is formed by the tip (1) itself. The tip (1) comprises a body (9) of a first material with high resistivity and an at least partial coating (7) of a second material with low work function, wherein the body (9) of the first material forms the series resistor and the coating (7) of the second material provides for electron emission.

Abstract: A structure of openings is produced in two or more layers of silylated, polyimide photoresist. Openings in subsequent layers, which overlap previous openings, are of larger size. Then the structure is transferred to an organic substrate using oxygen plasma etching with up to 3% CF.sub.4. The smallest opening transferred to the substrate extends through the substrate.

Abstract: A structure of openings is produced in two or more layers of silylated, polyimide photoresist. Openings in subsequent layers, which overlap previous openings, are of larger size. Then the structure is transferred to an organic substrate using oxygen plasma etching with up to 3% CF.sub.4. The smallest opening transferred to the substrate extends through the substrate.

Abstract: The invention relates to novel synthetic isohirudins which have improved stability owing to exchange in the region of the Asp-Gly motif. This results, on the one hand, in an increase in the yield during workup and, on the other hand, in making possible pharmaceutical formulation as directly injectable solution ready for use.

Abstract: An optical storage disk consists of a glass substrate (1) into which guide tracks (3) for servo-controlling the focussed light beams are directly stamped by a hot stamp process. After stamping, the glass substrate is thermally quenched in the stamping device to increase its breaking resistance through thermal curing. In order to achieve uniform guide tracks over the entire surface of an optical storage disk, flexible stamp stencils (35) in a flexible holder (34) are used whose curvature can be changed by applying hydro-static pressure. Suitable stamp stencils consist of monocristalline silicon disks with surface hardening, or of metal disks, structured in photolithographic processes. The stamp lands are made with bevelled edges to facilitate the separating of stamp and glass substrate after cooling.

Abstract: The invention rleates to .gamma.-cyclodextrin glycosyl transferases obtainable by screening bacteria for the secretion of a .gamma.-cyclodextrin glycosyl transferase, the bacteria are characterized and the .gamma.-cyclodextrin glycosyl transferase of the bacteria is purified and characterized biochemically. These enzymes can be used for the production of .gamma.cyclodextrin from starch.

Abstract: Novel synthetic isohirudins with improved stability The invention relates to novel synthetic isohirudins which have improved stability owing to exchange in the region of the Asp-Gly motif. This results, on the one hand, in an increase in the yield during workup and, on the other hand, in making possible pharmaceutical formulation as directly injectable solution ready for use.

Abstract: The alkalophilic bacteria (DSM 5853) possesses a maltopentaose producing amylase. The maltopentaose producing amylase, and its derivatives modified by gene manipulation, can be expressed in E. coli. These amylases facilitate the production of maltopentaose.

Abstract: The invention relates to novel synthetic isohirudins which have improved stability owing to exchange in the region of the Asp-Gly motif. This results, on the one hand, in an increase in the yield during workup and, on the other hand, in making possible pharmaceutical formulation as directly injectable solution ready for use.

Abstract: A device for heating flowing media in a handpiece, particularly air or water for use in dentistry procedures, includes a structural unit for controllably heating a flowing medium disposed in a housing in a sealed manner such that an annular flow passage is formed between an interior wall of the housing and the structural unit. The structural unit includes a PTC resistor having end faces disposed between and in thermal and electrical contact with a pair of porous sintered metal heat exchanger elements at a non-zero angle to the direction of medium flow. Connectors on the opposing ends of the unit contact the sintered heat exchanger elements to flow connect the structural unit in a medium flow line and to electrically connect the PTC resistor to a heating control circuit.

Abstract: An optical storage disk includes a glass substrate (1) into which guide tracks (3) for servo-controlling the focussed light beams are directly stamped in by hot stamp process. After stamping, the glass substrate is thermally quenched in the stamping device to increase its breaking resistance through thermal curing. In order to achieve uniform guide tracks over the entire surface of an optical storage disk, flexible stamp stencils (35) in a flexible holder (34) are used whose curvature can be changed by applying hydro-static pressure. Suitable stamp stencils include monocristalline silicon disks with surface hardening, or of metal disks, structured photolithographic processes. The stamp lands are made with bevelled edges to facilitate the separating of stamp and glass substrate after cooling.

Abstract: A maltopentaose producing amylase, and its derivatives modified by gene manipulation, can be expressed in E. col. These amylases facilitate the production of maltopentaose.