Abstract: The invention provides an aerogel-concrete mixture, a high-performance aerogel concrete obtained therefrom, and a method for production thereof. The problem addressed by the present application is that of providing pressure-resistant but not very thermally conductive concretes, precast concrete components, screeds, screeds for precast components, (glassfibre-) reinforced concrete, fire protection panels, construction elements for thermal partition and blocks. The aerogel-concrete mixture contains: 10% to 85% by volume/m3 of aerogel pellets having a grain size in the range from 0.01 to 4 mm, 100 to 900 kg/m3 of inorganic hydraulic binder, 10% to 40% by weight based on the binder content of at least one silica gel suspension, 1% to 5% by weight based on the binder content of at least one plasticizer, 0.2% to 1% by weight based on the binder content of at least one stabilizer and 0% to 60% by volume/m3 of at least one lightweight aggregate.

Abstract: In a movement system, the movement limit is determined by having a degree of freedom of the movement system defined and the respective current movement system state being available. Subsequently, an articulation trajectory is determined for each upper articulation point of the movement system, on which articulation trajectory the articulation point can move along the degree of freedom. The movement limit is then derived by calculating the point of intersection of the actuator movement in an extreme deflection with its respective articulation trajectory.

Abstract: Minimally invasive instrument for robotic surgery including a functional element, a force, torque and/or pressure transmission device for transmitting force, torque and/or pressure from a drive to the functional element, a coupling device for coupling the instrument to a medical robot such that the functional element can be actuated by the drive, wherein an operating element for manually operating the functional element in a state in which the instrument is uncoupled from the medical robot.

Abstract: The load-bearing capacity of cylindrical shells of a composite fiber material that are at risk of buckling is determined by deriving improved reduction factors for analytical calculation of the design load. A load distribution head applies an axially acting force to a cylinder shell. A dent actuator dents the surface of the cylinder shell in a predetermined dent direction with a predetermined dent depth. A dent force is determined when a steadily increasing, axially acting force is applied to the cylinder shell by the load distribution head until a complete failure of the cylinder shell is detected. An analysis unit determines a dent depth from a data memory at which a dent force at a complete failure of the cylinder shell is at a maximum compared to dent forces of other dent depths.

Abstract: Burners having a fuel plenum in a base are disclosed. One disclosed example apparatus includes a base of a burner, the base comprising a fuel plenum and coupled to fuel nozzles, where at least one of the fuel nozzles is in fluid communication with the fuel plenum. The disclosed example apparatus also includes a burner head of the burner comprising nozzle passages in fluid communication with an airflow path, where the burner head defines a pilot combustion space that opens towards a flame tube of the burner, and is in fluid communication with the airflow path, and where each nozzle passage is to receive a fuel nozzle to provide fuel to entrain with air from the airflow path.

Abstract: A method for transmitting a binary data signal to or from a satellite via an optical feeder link, wherein an optical transmitting interface carries out the following steps multiplexing binary physical layer frames which are associated with a plurality of carriers or a plurality of beams in a satellite communication system into a single bit stream, inserting a binary physical layer frame identification sequence upstream of each physical layer frame, wherein the physical layer frame identification sequence comprises: a unique binary synchronization sequence, a binary beam index sequence, a binary carrier frequency index sequence, a binary baud rate index sequence, a binary roll-off factor index sequence, a binary modulation index sequence.

Abstract: A parabolic trough collector module comprising an absorber tube, a parabolic reflector focusing the solar radiation to the absorber tube and with a reflector surface, and at least one support de-vice on which the parabolic reflector is mounted so that it can pivot. The support device includes a support head projecting over the reflector surface in the vertical direction, on which the absorber tube is mounted by a linear bearing structure forming a linear guide.

Abstract: A method for controlling a robot device (500) having a movable manipulator and/or effector (400), according to which method a speed and/or direction of movement of the manipulator and/or effector (400) is monitored and adjusted as appropriate, taking into consideration medical parameters for injury and robot dynamics is provided. A robot device (500) for implementing such a method and to a computer program product for executing such a method.

Abstract: A camera system, particularly for minimally-invasive surgery, comprising an optics, wherein the optics is connected to at least one transparent film and the film is removable. Further, there is provided a method for cleaning a camera in minimally-invasive surgery wherein an optics of the camera is cleaned intracorporally by use of a cleaning device.

Abstract: A robot system is provided that includes a transport device and a robot. The transport device has a receiving device that receives a robot and a movement device connected with the receiving device. The robot has a robot base with at least one manipulator element connected with the robot base. The robot system further includes a fastening device connected with the robot base for fastening the robot to a holding device and includes a transport device receiver that is connected with the robot base for fastening the robot to the transport device.

Abstract: A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to flex whenever a water force acting on the tail fin is greater than a predetermined amount.

Abstract: The invention relates to an apparatus for mounting an object to a structure. The apparatus includes an elastic arrangement including at least two elastic partial arrangements. The two elastic partial arrangements are arranged at a distance in the direction of a main axis, and the two elastic partial arrangements are soft in the direction of the main axis and stiff in all directions orthogonal to the main axis. Each of the two elastic partial arrangements comprises an inner connection area close to the main axis and an outer connection area farther away from the main axis, and each of the two elastic partial arrangements comprises at least two leaf springs which extend between the inner connection area and the outer connection area and which are spirally wound into each other within a common leaf plane.

Abstract: The method for providing a warning of radiation-dose-relevant space-weather events at cruising altitudes comprises the steps of detecting radiation data of the atmospheric radiation, particularly ionizing radiation in the atmosphere, and providing a radiation model for 3D-spatially resolved estimation of a radiation field at cruising altitudes of the earth's atmosphere by use of a radiation dose rate scale based on a continuous range of values. Moreover, the 3D-spatially resolved rates of the effective radiation dose on the basis of the detected radiation data and the radiation model will be estimated. The radiation dose rate scale is divided, based on a continuous range of values, into a discrete, i.e.

Abstract: The invention relates to a flight guidance system for the flight support of a aircraft (1), said system comprising a plurality of fixed ground stations (4a to 4e) respectively comprising a transmitting and/or receiving unit (5a to 5e), and at least one transmitting and/or receiving unit (6) that is arranged on the aircraft (1), the transmitting units being act up to send position signals (7) and the receiving units being set up to receive said position signals (7).

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 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 or price-power relation. By taking into consideration the non-monotonic price-performance or price-power 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 for operating a solar thermal power plant comprising multiple solar radiation receivers operated using a molten salt as the heat transfer medium, wherein each solar radiation receiver comprises a reflector device and an absorber tube, includes: preheating of the absorber tubes, in the state in which said tubes are empty of the molten salt, to a temperature T by concentrating solar radiation on the absorber tubes by means of the reflector devices, wherein the temperature T is greater than or equal to the melting temperature of the salt; after reaching the temperature T: introduction of the molten salt into the absorber tubes and recirculated conduction of the molten salt through the absorber tubes while simultaneously repositioning the reflector devices depending on the position of the sun; on ending the operation: release of the molten salt out of the absorber tubes.

Abstract: A reflector antenna for synthetic aperture radar, having a reflector including a reflector surface, a vertex, and an optical axis. The reflector antenna also as a plurality of antenna elements arranged side by side and in a row, for transmitting radar transmission signals and receiving radar reception signals produced from a reflection on a surface. The reflector is designed as a one-dimensional defocused reflector having two focal planes. The optical axis coincides with the line of inter-section of two imaginary planes extending at right angles to one another. The reflector has, in a first (X-) plane, a first (X-) focal plane that extends at right angles thereto and to the optical axis, and, in a second (Y-) plane, a second (Y-) focal plane which extends at right angles thereto and to the optical axis. The second (Y-) focal plane is at a greater distance from the vertex than the first (X-) focal plane.

Abstract: A surgical manipulation instrument which is particularly suitable for minimal invasive surgery, comprising an extra-corporeal drive device to which several axially displaceable first actuation elements are connected. The disclosure also relates to a partial intra-corporeal manipulator part which comprises several axially displaceable second actuation devices for actuating an end effector. Pairs of actuation elements are detachably connected together by means of a coupling device. A pivotable intermediate element is provided between the second coupling element and the second actuation element.

Abstract: A nozzle, in particular an outlet nozzle of an aircraft jet engine, is formed with at least one nozzle wall. A turbulence-generating and/or vortex-generating structure is arranged on an inner face of the nozzle wall and projects radially inwardly from the nozzle wall. Alternatively, or in addition, a turbulence-generating and/or vortex-generating structure is arranged on an outer face of the nozzle wall and projects radially outwardly from the outer face. There is also described a structural element and a method of producing a nozzle.