Abstract: An unmanned aircraft is described. The unmanned aircraft includes a signal output unit and a control unit. The control unit receives at least one signal to be output by the signal output unit. The control unit transmits at least a first signal to the signal output unit, so that the signal output unit outputs the first signal. The unmanned aircraft may be used stand-alone or autonomous as a movable signal output device, but it may also be coupled with a carrier vehicle to meet the function of a signal output device at the carrier vehicle.

Abstract: Secure logging systems and methods using cryptography and/or encryption with crash recovery. In some embodiments, the secure logging system includes an initialization module to initialize cells of a logging database, including inserting a pseudorandom number into each cell of the logging database. In some embodiments, the secure logging system includes an addition module to encrypt new log messages and add them to the logging database in a given number of pseudorandom cells of the logging database. In some embodiments, the secure logging system includes a listing module to determine where in the logging database the log message was stored and then to decrypt the encrypted log messages. These systems and methods improve computer related technology including by improving crash reconstruction, root cause analysis, network systems security, and logging system encryption and security.

Abstract: A circuit board includes a substantially planar component carrier and a microstrip which is applied to a surface of the component carrier. The microstrip extends towards a connection transition which is arranged on a lateral edge of the component carrier. A waveguide portion of an antenna element which is produced by a 3D printing process is coupled to this connection transition.

Abstract: An aircraft structure has a fuselage, a wing and an air inlet for receiving air for an engine. The air inlet contains an elevation which rises from the fuselage and the wing. The elevation is arranged in a transition region between the wing and the fuselage and extends asymmetrically with respect to an angle bisector of an angle between a surface of the wing and the lateral surface of the fuselage. By virtue of this construction, a leading edge of the wing can be arranged further forward than the air inlet, and the air inlet configured according to these principles can positively influence a flow boundary layer on the aircraft structure.

Abstract: An apparatus and a method for the metallization of an object including placing the object in an electrolyte, placing an anode in contact with the electrolyte, placing a metallization contact of a cathode in contact with the object, applying an electrical tension between the anode and the cathode, wherein the metallization contact is displaced in relation to the object during the metallization of the object to achieve a complete and continuous metallization of the object's surface.

Abstract: A battery cell includes an anode, a cathode, and a separator between the anode and the cathode, wherein at least one of the anode or the cathode includes at least a carbon fiber ply comprising carbon fibers, the carbon fiber ply having a thickness of less than 90 micrometers. Also disclosed are a battery and an aircraft including such battery cell, and a method for manufacturing such battery cell.

Abstract: A device for accommodating and deploying at least one payload on a flying machine includes at least one housing. The housing includes at least two opposite first side surfaces which extend over at least a portion of a length of a payload to be accommodated. The payload to be accommodated is releasably held between the two first side surfaces of the housing. The housing is at least partially arranged in a cavity on an outer surface of a flying machine. The cavity includes at least one outwardly open first opening, and the housing can be at least partially moved out of the cavity for deploying and/or receiving the payload to be accommodated.

Abstract: A system with a self-test function has at least one system component which has at least one technical function, a fault simulation unit integrated in the system, a self-test unit integrated in the system, and a verification control unit integrated in the system, wherein the at least one system component is coupled to the fault simulation unit, wherein the fault simulation unit is designed to influence the operation of the system component to the effect that the at least one technical function is selectively impaired, wherein the self-test unit is designed to monitor operating parameters of the system component and to respectively generate a warning signal which indicates impairment of the respective at least one technical function, and wherein the verification control unit is designed to compare the warning signals generated by the self-test unit with expected warning signals on the basis of the impaired technical functions.

Abstract: A monitoring system for monitoring a kinematic coupling between an actuator and an element controlled by the latter includes a first sensor to detect the operative movement of the actuator. A second sensor is designed to detect the actual movement of the controlled element. A computer unit, based on the operative movement of the actuator, determines an anticipated movement of the controlled element and compares this anticipated movement with the actual movement of the controlled element. An error message is emitted when a value of the deviation between the anticipated movement and the actual movement exceeds a predefined threshold value.

Abstract: Hollow waveguide termination device utilizing a housing and a cup shaped inner attenuation element arranged therein and made of a material which absorbs electromagnetic oscillations. The attenuation element has a tubular section and a front wall section closing the tubular section on one side.

Abstract: The disclosure herein relates to a receiver for use in a user satellite, located among other things partly or wholly on orbits remote from Earth, for example. The receiver comprises a receiving unit and a processing unit. The receiving unit is configured to receive signals transmitted by navigation satellites of one or more global navigation satellite systems (GNSS). The processing unit is configured to determine measurements based on the data contained in the signals received. The processing unit is further configured to carry out a calculation of position, velocity and time (PVT) based on batch processing of the measurements. The disclosure herein further relates to a method and a user satellite.

Abstract: A laying die, for picking up and laying of substrates, comprising an elastically deformable substrate receiving structure providing an engagement surface for releasable receiving of substrates, an attaching element comprising a gas channel for providing positively or negatively pressurized gas for picking up and blowing off the substrates, and a carrier body made from elastically deformable material and sandwiched between the substrate receiving structure and the attaching element which is arranged to distribute the positively or negatively pressurized gas over the carrier body. The carrier body comprises breakthroughs to transfer the pressurized gas from the attaching element to the substrate receiving structure that comprises an elastically deformable distribution plate to distribute the positively or negatively pressurized gas over the engagement surface.

Abstract: An assembly for arrangement to the surface of an aerodynamic profile comprises an array of actuators, which are designed as piezo actuators and plasma actuators.

Abstract: The invention provides a method and apparatus for forming a freeform metal structure by wire feed additive manufacturing. In accordance with the method, a holding structure is moved in at least one moving direction, the holding structure holding the metal structure. A metal wire end is fed along an area of deposition on the metal structure in the at least one moving direction. The metal wire end is heated to a melting temperature using a heat source, with the metal wire end as melted being deposited on the metal structure as a metallic build-up material. The metallic build-up material after heating and during the cooling is subjected in the at least one moving direction behind the area of deposition to at least one pulsed magnetic field using a magnetic coil arranged after the heat source, the at least one pulsed magnetic field effecting plastic deformation of the build-up material.

Abstract: A method for categorizing a fracture surface of a component. A digital image of the fracture surface is generated. The digital image or one or more segments of the digital image is/are analyzed, wherein a category of a fracture pattern is assigned to one or more regions of the digital image or of one or more segments based on detection and statistical evaluation of spatial distribution of the smallest homogeneous image units (pixels) or image elements, and, provided that multiple regions and/or multiple segments of the digital image were analyzed, information about the regions and/or details of the digital image and categories of fracture patterns determined and assigned to them are linked to each other, and a category is assigned to the fracture surface based on this link. The method permits automatic, self-learning-categorization of fracture surfaces, for example for series tests carried out for joining technologies.

Abstract: A measurement arrangement for measuring process and structure parameters of a fiber composite material along a measuring path includes a fiber material, a matrix material which surrounds the fiber material at least in regions, and an electrical sensor element that includes at least two signal transmission lines twisted together and aligned along the measuring path in and/or at the fiber material such that the signal transmission lines are surrounded at least in portions by the matrix material, wherein the electrical sensor element is configured to measure the process and structure parameters on the basis of the behavior of electromagnetic signals that are fed into the signal transmission lines.

Abstract: A laying unit for producing a fiber composite component includes a drive device which is formed for magnetic cooperation with a running face, which provides a magnetic field and/or is ferromagnetic, to advance the laying unit on the running face. A device for producing a fiber composite component including a laying unit of this type and a method for producing a fiber composite component including a device of this type are disclosed.

Abstract: A method for coupling an energy supplying device to an energy consuming device in space and to a system including an energy supplying device, an energy consuming device and a mobile assembly unit residing in space. The energy supplying device is operable in space and includes solar panel units to convert received light into electrical energy, first coupling members to couple the solar panel units with each other, and a second coupling member to electrically couple the energy supplying device with the energy consuming device. The energy supplying device is configured to supply electrical energy to the energy consuming device in space. A configuration of the solar panel units is changeable in space according to an operational requirement of the energy consuming device.

Abstract: An energy supply device for reliably supplying energy to electrical loads, provides the energy supply by constant voltage sources. The number of constant voltage sources corresponds to the number of electrical loads. The energy supply device has a deactivatable balancing network. In this case, only the compensating currents are conducted via the balancing network, while the energy supply is provided via a direct electrical connection between the constant voltage source and the load. If a fault occurs, the balancing network can be deactivated. Faults in one branch thus do not affect the level of reliability of the energy supply in the remaining branches. After a faulty component has been located and isolated, the sources that are still intact, and the intact loads, can be brought back into operation by suitably configuring the balancing network. The availability of the drive system can thus be increased.