Abstract: A central distance measuring device, which can be directed at the heliostats, is used to determine the settings of the heliostats of a heliostat field. The distance measuring device measures the space between a plurality of measuring points from the measuring site and, based on this, determines the spatial alignment of the respective heliostat. A computer contains astronomical solar altitude software and controls an actuating device of the heliostat such that the heliostat assumes the alignment intended according to the solar altitude. With the invention, position sensors and/or angle sensors on the individual heliostats are avoided. All heliostats are aligned by a central computer.

Abstract: A support system (1) for traffic support of ships (20a, 20b, 21a, 21b), having AIS ship reception units for receiving AIS radio signals containing ship traffic data, is characterized in that at least one flight object (2) is provided, comprising at least one AIS flight transmission unit (3), which is designed to transmit AIS radio signals containing ship traffic data inside an AIS transmission range (10) in such a manner that the transmitted AIS radio signals can be received by the ships (20a, 20b, 21a, 21b) located inside the AIS transmission range (10) by means of their respective AIS ship reception units.

Abstract: The present invention provides a method for producing a pressure tank for holding a pressurized fluid, comprising the steps of providing a shaped body; arranging one or more elements of a textile sheet material of reinforcing fibers on the shaped body; impregnating the reinforcing fibers, before or after the arrangement of the element or elements on the shaped body, with a thermosetting or thermoplastic resin; and curing the resin to form a composite fiber material surrounding the shaped body. The invention also provides a pressure tank for holding a pressurized fluid, comprising a hollow body which defines a storage space for the fluid, and a composite fiber material surrounding the hollow body which comprises one or more elements of a textile sheet material. The invention further provides a pressure tank group comprising a plurality of such pressure tanks.

Abstract: The photoreactor comprises a tube bundle (10) made up of numerous capillary tubes (11) through which a reaction medium flows. The tubes (11) are transparent. Solar radiation or artificial radiation acts upon the reaction medium for effecting a photochemical or photobiological treatment. The inlet chamber (12) connected with the tube bundle (10) comprises a flow distributor (16) which distributes the reaction medium from the fluid inlet (15) to the tubes (11). The flow distributor (16) allows for a smaller volume of the inlet chamber (12). The reactor volume, which is not irradiated, is thus reduced, and the efficiency of the rector is enhanced.

Abstract: In order to produce a space flight drive for propelling a spacecraft which can use the available fuel with great efficiency and which can transport heavy payloads to great heights, it is proposed that the space flight drive should comprise a fuel tank for holding a fuel, an oxidizer tank for holding an oxidizer, a combustion chamber device for the conversion of the fuel by the oxidizer, a propulsion nozzle device adjoining the combustion chamber device and a shroud device which surrounds the propulsion nozzle device annularly at least in sections for the production of an air sheath flow during a flight of the spacecraft through the atmosphere.

Abstract: The invention relates to a method for activating a motion system of a simulator provided for simulating motion and/or acceleration values, wherein at least one acceleration value (1) which is to be simulated is simulated by the motion system being inclined in relation to the earth's vertical, and an additional translatory motion profile (5) of the motion system is determined in order to compensate liar a simulation error (3) until the positioning angle is reached. Activation then takes place in dependence on an inclination profile and the additional translatory motion profile (5).

Abstract: A compressible and deployable helical antenna (2) includes a supporting structure (7) having a helical shape. The supporting structure (7) includes a core (18), especially of foamed material, and a carrier layer (19) of composite fiber material, the carrier layer (19) being located on the core (18). An electrically conducting layer (8) is located on the carrier layer (19). An antenna unit (1) includes the compressible and deployable helical antenna (2) and a reflector plate (3). The reflector plate (3) is connected to the helical antenna (2).

Abstract: The invention relates to an AIS ship transceiver which, after reception of an AIS base station message, validates the transmitting AIS base station and activates or deactivates the emitting of AIS radio signals in dependence on the validation.

Abstract: The invention relates to a sensor device (4) for measuring a direction of incident flow (2) with which a flowing medium flows against the sensor device (4), having a flow body (1) which is set up to have the flowing medium flow around it, the flow body (1) having a plurality of pressure-sensitive or force-sensitive sensor elements (3) which are arranged on the outer surface of the flow body (1) or are arranged in the flow body (1) and are connected to the outer surface of the flow body (1), and the sensor elements (3) being arranged behind one another along the intended course (30) of the flow around the flow body (1). The invention also relates to an evaluation device for such a sensor device.

Abstract: An unstable optical resonator device is provided, comprising a spherical back mirror, a spherical outcoupling mirror, wherein a focal point lies between the back mirror and the outcoupling mirror, an optically active medium with a rectangular medium cross-section arranged between the back mirror and the outcoupling mirror, and a scraper, which is arranged between the back mirror and the outcoupling mirror and has a first leg and a second leg located transversely to the first leg, said legs defining a free space with a first side delimited by the first leg and a second side delimited by the second leg, wherein the first side and the second side are orthogonal to one another.

Abstract: The method for locating a person, particularly within a building, first of all involves capturing the movement of at least one foot of the pedestrian by using an inertial sensor arranged in or on the shoe of the user. In addition, it involves capturing those phases of time during the movement of the pedestrian in which the internal sensor does not measure any further essential acceleration apart from acceleration due to gravity. Hence, quiescent phases of the foot and/or the shoe of the pedestrian are captured in which the foot or the shoe is essentially not moving. During a large number of the detected quiescent phases of the foot and/or the shoe, an image of the surroundings of the pedestrian is recorded by a camera arranged in or on the shoe. By processing the images from at least two quiescent phases, particularly quiescent phases at successive times, a movement of the foot and/or of the shoe is ascertained.

Abstract: In order to provide a method of operating a solar thermal power plant, in which a heat transfer medium is evaporated endothermally by solar radiation in an evaporator section, wherein the evaporator section comprises a plurality of evaporator branches, among which the heat transfer medium is distributed, in which method non-uniform radiation conditions of the evaporator section may be effectively taken into consideration, it is provided that the mass flow distribution at the evaporator section is controlled, wherein the mass flows are adjusted individually at all or a majority of the evaporator branches and a controlled variable is a variable characterizing a spatial energy rise in a respective evaporator branch in a region of the evaporator branch where the heat transfer medium has not yet evaporated.

Abstract: The invention relates to a method and a device for manufacturing a fiber-composite component, in which a closed U-shaped profile is placed onto the vacuum film and subsequently the cavity formed there is evacuated in order to form in this manner natural resin flow paths in the semifinished fiber product.

Abstract: The invention relates to a method and to a device for the energy management of a system having a number of components according to an economic market model approach. At least one of the components is characterized by a non-monotonic price-performance relation. By taking into consideration the non-monotonic price-performance relation, a realistic description of the at least one component is provided and thus used to improve energy management of the system.

Abstract: A method is provided for controlling the alignment of a heliostat with respect to a receiver, wherein an image sensor device is arranged on a mirror device of the heliostat, wherein the heliostat is aligned by the image sensor device using image recognition in such a way that a first angle of a first vector pointing towards the sun, relative to a prescribed vector of the mirror device, and a second angle of a second vector pointing towards a prescribed target area of the receiver, relative to the prescribed vector, are in a relationship to each other which is dependent upon the prescribed vector of the mirror device, and wherein images of the sun and the prescribed target area and their position relative to the prescribed vector are determined.

Abstract: A measuring device, in particular a measuring device for remote sensing, has a measuring instrument and an apparatus for movably mounting the measuring instrument. The apparatus has two non-parallel rotation axes. The rotation axes are different from a longitudinal axis of the measuring instrument. The measuring instrument is connected to a rotatable drive element via a power transmission element.

Abstract: The present invention relates to a multiple carrier smoothing method for navigation satellite signals, in particular a three carrier smoothing method for Galileo signals. It provides a smoothed code solution, which is ionosphere-free to the first order and whose noise is reduced to sub-decimeter level. The method involves integer ambiguities, which can be resolved reliably. The sensitivity of the new method to receiver biases and ionospheric delays of the second order is small. The performance of the three carrier smoothing method allows to reduce the averaging interval to ?-th of its current standard value. The results refer to pseudo ranges and are geometry independent.

Abstract: A rotary aircraft which carries a hanging sling load on at least one support cable, benefits from a stabilizer which generates control signals R to be applied or modulated onto the flight control of the aircraft. At least one sling load pendulum motion detecting unit provides the stabilizer with data on the pendulum motion of the sling load. Additionally, the stabilizer is set up with a working range determination unit S3 for determining the space where free movement is possible in which the rotary aircraft with sling load can move without collision. The stabilizer generates control signals R in dependency of the determined pendulum motion of the sling load and the determined working range.

Abstract: The invention comprises a satellite (1) having at least one transmitting and/or receiving unit (2), which has an antenna assembly (3) for transmitting and/or receiving air-traffic control radio signals (4), wherein the antenna assembly (3) has a plurality of directional antennas (6a to 6c), which each form a respective transmitting and/or receiving sector (7a to 7c, 22a to 22e) within a defined transmitting and/or receiving area (21) and are designed to transmit and/or receive air-traffic control radio signals (4) in the respective transmitting and/or receiving sector (7a to 7c, 22a to 22e) of the directional antenna.

Abstract: A laser amplifier system is provided which comprises a resonator with optical resonator elements which determine a course of a resonator radiation field which propagates along an optical axis and at least one laser-active medium (LM). The resonator is designed as a split resonator and has a first resonator section which extends from a first virtual plane of separation and a second resonator section which extends from a second virtual plane of separation. The resonator sections are dimensioned optically such that the resonator radiation field has radiation field states corresponding to the same resonator modes in each of the virtual planes of separation. An amplifying unit optically independent of the resonator is arranged between the first and the second virtual planes of separation. The amplifying unit comprises the at least one laser-active medium and couples the radiation field states in a neutral manner with respect to the resonator modes.