Abstract: A modular end effector with a base with at least one connection element, a manipulator, in particular interchangeable with the connection element connected is disclosed. The position of the connection element and/or the position of the manipulator within the connection element can be changed so that the manipulator can be used in different positions relative to a base to create a versatile modular end effector.

Abstract: An optical device and systems for near and distance imaging includes an optical unit with a first optical lens and a second optical lens, the first optical lens and second optical lens being arranged along an optical axis, and a transceiver unit with a transceiver element, a light passage surface of the transceiver element being arranged in or intersecting a plane or curved surface. A first distance between the surface and the first optical lens is provided along the optical axis and set in such a way that, during intended normal operation, the transceiver element of the transceiver unit is imaged onto a distant imaging surface by the optical unit.

Abstract: An optical device, a system and a method for dispersion interferometry includes a frequency doubling device and an optical modulation device, a transmission beam path which is configured to emit a first and second measurement beam on an optical element and a reception beam path which is configured to receive a first and second measuring beam returned by the optical element.

Abstract: An injector device for an engine device for introducing a fluidic, in particular a liquid, fuel and a fluid, in particular liquid, oxidizing agent into a combustion chamber of the engine device is provided. The injector device defines a longitudinal axis and comprises at least one first injection element, which is configured in the form of a first fluid channel for fluidically connecting a first collection space for the fluidic oxidizing agent and the combustion chamber, and at least one second injection element, which is configured in the form of a second fluid channel for fluidically connecting a second collection space for the fluidic fuel and the combustion chamber. At least one first resonator element is associated with the at least one first injection element and/or at least one second resonator element is associated with the at least one second injection element.

Abstract: The present invention relates to a hypergolic two-component system for rocket engines, including a fuel and an oxidising agent provided in a manner separated from one another and can be reacted in a rocket engine by bringing them into contact with one another. The fuel is an ionic liquid comprising a thiocyanate anion and one or more cations. The cation or cations are selected from one or more imidazolium ions of the general formula I, triazolium ions of the general formula II or III, and/or tetrazolium ions of the general formula IV, where R1 is a C1- to C6-alkyl radical or a C2- to C6-alkenyl radical, where R2 is hydrogen or a C1- to C6-alkyl radical or a C2- to C6-alkenyl radical, and where X1, X2 and X3 are each independently hydrogen, a C1- to C6-alkyl radical or a C2- to C6-alkenyl radical, and the oxidising agent comprises hydrogen peroxide.

Abstract: The invention relates to a passive radiant cooler (1) having a substrate and a layer structure which is applied to the substrate (2) and comprises the at least one reflection layer (3) and at least one emission layer (4), the emission layer (4) comprising an at least partially crosslinked polymer and/or a ceramic material derived from this polymer which are produced in order to form the emission layer (4) from at least one crosslinkable, silicon-based prepolymer, the prepolymer being composed of at least one type of monomer unit according to formula (I).

Abstract: A system for optical communication includes at least one light source for transmitting optical signals, at least one optical receiving unit for receiving the optical signals of the at least one light source, at least one mask unit, which is arranged between the optical receiving unit and the at least one light source, and which is designed to be switchable back-and-forth at least in areas between an at least partially optically non-forwarding and at least partially optically forwarding state. An image of at least one light-emitting area of the at least one light source can be imaged onto the at least one mask unit and in the at least partially forwarding state of the at least one mask unit can be conducted to the receiving unit. A method for optical communication is also provided.

Abstract: The invention relates to an R-mode receiver arrangement (1) comprising a low-noise amplifier (2), a bandpass filter (3), and an RTL software-defined radio receiver module (4), wherein an input of the low-noise amplifier (2) is configured to be connectable to a receiving antenna (10, 11), wherein an output of the low-noise amplifier (2) is connected to the RTL software-defined radio receiver module (4) via the bandpass filter (3).

Abstract: The invention relates to a device for unfolding a rolled-up elongate hollow member having: at least one elongate hollow member which has two elongate shell member halves, and an unfolding mechanism which has a fixed base structure and a winding core which is rotatably supported on the base structure and on which the at least one elongate hollow member in a first state is rolled up and compressed and which by rotating moves and unfolds the elongate hollow member from the first state into an unrolled and unfolded second state so that an elongate hollow space is formed between the two shell member halves of the at least one elongate hollow member, wherein the at least one elongate hollow member has as a first end a hollow member root, via which the elongate hollow member is secured to the rotatably supported winding core, wherein the first shell member half of the at least one elongate hollow member is secured in the region of the hollow member root to the rotatably supported winding core, and the unfolding m

Abstract: A solar radiation receiver having a receiver chamber having at least one radiation opening through which concentrated solar radiation can be introduced into the receiver chamber, having at least one solar absorber device which has at least one solid medium block which is fastened to a transport device, and having at least one opening through which the at least one solar absorber device is inserted such that the at least one solid medium block is arranged in the receiver, and through which the solar absorber device is removed.

Abstract: A method for inspecting a joining surface (14) of a substrate, wherein a component is to be adhered to the joining surface of the substrate by means of an adhesive material (27), wherein the method comprises the following steps: •—providing at least one planar test textile (20), which has a fiber material (21) and an adhesive primer (22), •—applying the planar test textile to at least one part of the joining surface of the substrate to which the component is to be adhered so that the adhesive primer of the planar test textile contacts the joining surface of the substrate, •—at least partially curing the adhesive primer of the planar test textile in order to integrally bond the planar test textile to the substrate by means of the adhesive primer, •—pulling off the planar test textile after at least partially curing the adhesive primer and inspecting the joining surface by means of a qualitative evaluation of the fracture pattern between the cured adhesive primer and the planar test textile and/or by means of a

Abstract: The present invention relates to a material and process for producing water- and oxygen-free halogen salts of an alkali metal or alkaline earth metal, or of a transition metal, or of a metal of groups 13 or 14 of the Periodic Table, in which at least one halogen salt is heated with a heating rate of from 0.2 K/min to 30 K/min, especially from 1.0 K/min to 10 K/min, proceeding from room temperature.

Abstract: A heat accumulator device for accumulating sensible heat in molten salts, including: -a heat accumulator vessel for receiving molten salt, a separating layer being disposed in the heat accumulator vessel in order to separate a cold region, in which cold molten salt is present, from a hot region, in which hot molten salt is present, and the cold region being located below the hot region; - a device for loading and unloading the heat accumulator vessel, which device is connected to the cold region and to the hot region; and - a volume compensation device for compensating a temperature-related change in the volume of the molten salt, the volume compensation device interacting with the cold region and/or with the separating layer.

Abstract: An aircraft includes a fuselage, a wing attached thereto, a wing tip device attached to a wing end of the wing (2), a wing-like element having a wing root, a wing leading edge and a wing trailing edge, and a torque control device having a rotatable interface means. The torque control device is adapted for rotatably supporting the wing root of the wing-like element on the interface means about a rotational axis extending from the interface means into the wing-like element and to limit the degree of rotation depending on a torque introduced into the interface means by the wing-like element. The wing-like element is adapted to induce a rotation around the rotational axis in an air flow. The wing root is coupled with the wing tip device, the wing or the fuselage through the torque control device such that the leading edge extends into an airflow surrounding the aircraft.

Abstract: A method and a device are provided for determining a global irradiance of solar radiation, and/or at least one of the components thereof, in a plane, wherein the components include direct radiation, diffuse radiation, and radiation reflected on the ground, with a device including at least one radiation sensor unit, a camera, and an evaluation unit which is provided for evaluating measurement data from the radiation sensor unit and/or from the camera. The radiation sensor unit for determining the irradiance of solar radiation is provided in a field of view of 180° over a plane. The camera for detecting a field of view of 180° is provided over a plane. A global irradiance of the solar radiation is measured and converted into the global irradiance and/or into one or more of the components thereof in the horizontal plane and/or in the plane inclined with respect to the horizontal plane.

Abstract: A robot manipulator including limbs moveable via bearings controlled by actuators; sensors to capture a bearing position and a bearing torque/bearing force; a first sensor to capture a force screw W; a housing downstream of the first sensor; a second sensor to capture a user force applied to the housing and/or a user torque; a computing unit to determine, using a dynamics model of the robot manipulator and based on particular bearing torque/bearing force, the force screw W, and the user force and/or the user torque, a first force and/or a first torque to shift the limbs and a second force and/or a second torque to apply to an external object via an effector, wherein the dynamics model includes at least gravitational forces and inertial forces based on the bearing position; and a storage unit to store the first and/or the second force, and/or the first and/or the second torque.

Abstract: A heat accumulator device is provided having a metal phase-change material as an accumulator material, the heat accumulator device including at least one a holding chamber having a holding space for the accumulator material, a housing for the holding space, at least one heat input apparatus for inputting heat into the at least one holding chamber, and at least one heat output apparatus for outputting heat from the at least one holding chamber. A coupling region of the heat input apparatus, provided for thermal coupling to the accumulator material, and/or a coupling region of the heat output apparatus, provided for thermal coupling to the accumulator material, is arranged, at least in part, at a distance from the accumulator material.

Abstract: An actuator system may include a first actuator for being operated by a user, a second actuator for performing a movement of the user, and a transmission channel between the first actuator and the second actuator for transmitting the velocity and the force of the first actuator to the second actuator and vice versa. The actuator system may also include a controller, wherein the controller is configured such that, with the aid of the controller, the energy of the first actuator is adapted to be measured as a desired energy, wherein the transmission channel is configured for transmitting the desired energy to the second actuator and the controller is configured for controlling the damping of the second actuator as a function of the desired energy.

Abstract: The invention relates to a thrust chamber device comprising a thrust chamber with a thrust space having a first portion, a second portion adjacent thereto, and a third portion adjacent to the second portion, the thrust space being delimited in all three portions by an outer nozzle wall having an outer thrust space surface, which outer thrust space surface tapers in the first and second portion toward the third portion, widens in the third portion away from the second portion, and has a narrowest point at the transition from the second portion to the third portion, the first portion being delimited by an inner nozzle wall with an inner thrust space surface, which tapers toward the second portion, an annular combustion chamber being formed between the inner thrust space surface and the outer thrust space surface and extending over the first portion.