Abstract: An audio system arranged in a listening environment in a vehicle. The vehicle comprises at least one first passenger seat or row of seats facing in a first direction, at least one second passenger seat or row of seats facing in a second direction opposite the first direction. The audio system comprises a first multi-beam loudspeaker array configured to generate at least a first main beam and a second main beam, and a second multi-beam loudspeaker array configured to generate at least a third main beam and a fourth main beam. The audio system is configured to direct the first main beam towards the at least one second passenger seat or row of seats and provide first audio content to the at least one second passenger seat or row of seats, direct the second main beam towards the at least one first passenger seat or row of seats.

Abstract: A method of making a portion capsule that includes steps of: forming a metal material into a base element that includes: i) a wall extending around a central longitudinal axis to define a cavity, and ii) a rim having a top side and an opposing bottom side; filling the cavity with a beverage material; closing the cavity by attaching a foil cover onto the top side of the rim, the cover being dimensioned and configured to be: i) pierced by the mandrel of the beverage making machine in a piercing region, and ii) sealed by the seal of the beverage making machine in a sealing region; and providing an optically detectable identifier onto the metal material so that the optically detectable identifier results on the bottom side of the rim.

Abstract: A local coil may have a mounting, at least one antenna, and a flexible element. The mounting may position the local coil in a specified position relative to the head of a patient, where the antenna may receive high-frequency signals in a frequency and power range of a magnetic resonance (MR) measurement. The flexible element may at least partly form the local coil on the surface contour of the patient's head. The local coil may at least partly surround the patient's head when the local coil is positioned during use, and a section of the local coil including the antenna can be positioned on the patient's temporomandibular joint using the mounting. The local coil may receive MR signals of the temporomandibular joint using the antenna. A MR device may include the local coil and detect MR signals of a region of the patient using the local coil.

Abstract: A patient table includes a patient support surface for supporting a patient and a pressure redistribution assembly that includes a pressure sensing assembly and a repositioning assembly. The pressure sensing assembly measures a pressure between the patient support surface and a patient at a plurality of sensing regions. The repositioning assembly includes a plurality of inflatable cells overlapping the plurality of sensing regions. A medium is located within the inflatable cells and an actuator selectively redistributes a quantity of the medium between the inflatable cells. A processor is configured to receive a measurement of the pressure from the pressure sensing assembly, determine if the measurement of pressure is above a threshold and, if the measurement of pressure is above the threshold, generate a signal to redistribute the medium.

Abstract: A device for converting voltage for a drive. The device comprises a first DC voltage converter and a second DC voltage converter. The first DC voltage converter can be set or configured and operated as an inverse converter or as a boost converter. The drive may be for a forklift truck with a fuel cell system, a battery, at least one electrical element and the device.

Abstract: A loudspeaker arrangement comprises a first loudspeaker comprising a first sound radiating surface and a first speaker basket, and a second loudspeaker comprising a second sound radiating surface and a second speaker basket. The first loudspeaker and the second loudspeaker are arranged opposite each other in a first direction. A cavity is formed between a front side of the first loudspeaker and a front side of the second loudspeaker. The first loudspeaker basket is directly coupled to the second loudspeaker basket, thereby forming a third projection that defines an opening of the cavity. The third projection forms a first point of contact on a first side of the loudspeaker arrangement. The first loudspeaker basket and the second loudspeaker basket further form at least one additional point of contact at a second side of the loudspeaker arrangement, opposite the first side in a second direction.

Abstract: A fuel cell system includes a housing enclosing an inner housing space. Housing sides delimit the inner housing space permeable to air. A fuel cell stack is in the housing interior having plurality of fuel cells. There is a cooling circuit cooling the fuel cell stack in which a liquid coolant circulates. A heat exchanger is integrated into the cooling circuit cooling the coolant and through which air flows. A fan is in the housing interior driving the air flow. A favourable dilution of exhaust gas from the fuel cells is achieved with an exhaust gas line guiding the exhaust gas from the fuel cells to the suction side of the fan. The air flows during operation of the fan from an environment of the housing into the housing interior and flows in the housing interior through the heat exchanger and from the housing interior back into the environment.

Abstract: A portion capsule for producing a beverage. The portion capsule includes a capsule body that has a collar edge and a capsule bottom; a filter element located inside of the capsule body, the filter element is elastic, the filter element has a flange that is attached to the collar edge of the capsule body, the filter element has a bottom; and a cover attached to the capsule body. The bottom of the filter element is spaced apart from the capsule bottom such that a free space remains between the filter element and the capsule bottom. The filter element is spaced apart from the capsule bottom in such a manner that only before a liquid is applied to a beverage substrate, does the filter element not touch the capsule bottom.

Abstract: Apparatuses and methods for cutting a sample piece, having a shape and an outer dimension, out of a porous substrate, comprising: a puncher having an outermost dimension at a punch head; a stripping sleeve; a die having an innermost dimension that is larger than the outermost dimension of the punch head; and a fixture that holds the die in a fixed position relative to the puncher and stripping sleeve.

Abstract: Systems, devices, apparatuses and methods for high quality imaging of objects in a wide field of view and broad spectral band with extended depth of field in the object space and with a pre-set parallax for objects located at different distances, for applications in photography, machine vision, optical inspection, and cinematography. Extension of the depth of field is achieved by imaging with a multi-focus optical system that simultaneously forms in its common image plane the images of the illuminated objects, which are spaced apart along the optical axis. Multifocality of the optical imaging system can be achieved with one or more multi-focus lenses made of birefringent optical materials, optical crystals or polymers with stress-induced birefringence, designed so the optic axis of the birefringent material of each of the multi-focus lenses forms an angle with its optical axis in the range from approximately 10° to approximately 90°.

Abstract: An exterior aircraft light comprises a housing defining an interior space; a light output generation unit comprising at least one light source; power supply electronics, coupled to the light output generation unit for driving a light out-put of the exterior aircraft light; and a draining device for draining the interior space. The draining device comprises a first drainage tube for receiving fluid, which is to be drained from the interior space; a second drain-age tube for receiving fluid, which is to be drained from the interior space; and a fluid discharge port for discharging fluid out of the housing, wherein the fluid discharge port is in fluid communication with the first drainage tube and with the second drainage tube. Each of the first drainage tube and the second drainage tube comprises a valve mechanism for selectively sealing and opening the respective drainage tube with respect to the interior space.

Abstract: A local coil including an antenna, base element, holding element, first and second guide mechanisms, and safety mechanism. The antenna receives high-frequency signals in a frequency range and power range of a magnetic resonance measurement and is mechanically connected to the holding element. The base element holds the holding element together with the antenna in a position for use on a diagnostically relevant body region of a patient. The first guide mechanism is mechanically connected to the base element and the holding element and positions the holding element variably relative to the base element. The second guide mechanism is mechanically connected to the holding element and the antenna and positions the antenna variably relative to the holding element. The safety mechanism prevents a collision between the antenna and the patient during a transfer of the holding element from an open position into a closed position using the first guide mechanism.

Abstract: A dental coil comprises a first element and a second element. The first element is composed of a dimensionally stable material and has a recess that is configured to receive at least one of a mouth region or a nose region of a patient when the dental coil is positioned on the jaw region of the patient during use. The second element has a flexible element that is configured to allow the flexible element to take the shape of the jaw region of the patient. The first element and the second element have an antenna configured to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement.

Abstract: A battery includes a stacked arrangement of electrochemical cells. Each electrochemical cell is free of a cell housing and includes a bipolar plate having a substrate, a first active material layer formed on a first surface of the substrate, and a second active material layer formed on a second surface of the substrate. Each cell includes a solid electrolyte layer that encapsulates at least one of the active material layers, and an edge insulating device that is disposed between the peripheral edges of the substrates of each pair of adjacent cells. Within each cell, an elastic seal is provided between the edge insulating device and the first surface of one cell or the solid electrolyte layer of an adjacent cell.

Abstract: A method for transmitting data or sensor data by radio between a preferably fixed battery-operated node and base station in a communication system with bidirectional radio transmission, includes providing a base station communication module having a first frequency transmitter, and a node communication module having a first frequency transmitter and second frequency transmitter with lower frequency. The node communication module transmits data in the uplink to the base station communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing. The base station communication module transmits data in the downlink to the node communication module by splitting a radio telegram into data packets transmitted successively with temporal spacing.

Abstract: In the case of a method for producing a three-dimensional shaped object by means of layer-by-layer material application, a base surface for holding the three-dimensional shaped object, a liquid, flowable or powder-form first material that can solidify, a powder-form second material including thermoplastic powder particles, and a solvent are made available. From the first material, a negative mold layer having a cavity for a shaped-object layer to be produced is produced and solidified. The bottom of the cavity is charged to an electric potential having a first polarity, and the powder particles are charged to a potential having a second polarity. The powder particles are applied to a support surface that is positioned relative to the cavity in such a manner that the powder particles are transferred from the support surface into the cavity and form a shaped-object layer having a positive shape that matches the negative mold in this cavity. The shaped-object layer is sintered by means of the effect of heat.

Abstract: A method for testing optoelectronic chips that are arranged on a wafer and comprise electric interfaces in the form of contact pads and optical interfaces, which are arranged in a fixed manner relative to the electric interfaces, in the form of optical deflecting elements, e.g. grating couplers, at a specified coupling angle. In the process, the wafer is adjusted in three adjustment steps in such a manner that one of the chips is positioned relative to a contacting module such that the electric interfaces of the chip and the contacting module are in contact with one another and the optical interfaces of the chip and the contacting module assume a maximum position of the optical coupling.

Abstract: An exterior aircraft light comprise at least one light emission assembly that includes at least one light source; a cup-shaped reflector; and a light transmissive cover for the cup-shaped reflector. The at least one light source is arranged at a bottom portion of the cup-shaped reflector and a light output opening is provided at a top portion of the cup-shaped reflector. The light transmissive cover comprises a lid portion, extending across the light output opening of the cup-shaped reflector; and a column-shaped light collimating portion, extending from the lid portion into the cup-shaped reflector towards the at least on light source and comprising a light collimation surface facing the at least one light source. The lid portion comprises, on at least one side thereof, a light dispersing profile.

Abstract: The invention relates to a support arm articulation device (50) for movably holding a medical device, comprising a first and a second fastening element (52, 54), which are connected to each other in a pivotable way by means of a spring arm (56), wherein the spring arm (56) comprises a supporting arm (58) and a lever arm (60), which are mounted in a pivotable way on the first fastening element (52) with an associated supporting arm pivot axis (64) and lever arm pivot axis (66), wherein the two pivot axes (64, 66) are spaced apart from one another, wherein the supporting arm (58) is mounted on the second fastening element (44) in a pivotable way, and the lever arm (60) is mounted on the supporting arm (58) by means of a spring device (78) such that a weight of the held medical device is supported in different pivot positions, wherein the spring device (78) comprises an adjustment device, by means of which a position of the mounting (68, 70) of the lever arm (60) on the supporting arm (58) is adjustable along a

Abstract: An optical module for modifying a light beam, wherein the optical module is made of a single-piece solid body material and has a passage surface for receiving the light beam. Furthermore, the optical module comprises a beam deflecting region lying opposite the passage surface for deflecting the light beam, wherein the beam deflecting region is designed as a curved region on the exterior of the optical module, in particular so as to have a hollow mirror function, a pass-through surface for outputting the light beam deflected by the beam deflecting region and a beam shaping region that is designed to shape the light beam and additionally or alternatively thereto the deflected light beam such that the light beam has a beam profile a with homogeneous intensity distribution over a specified range.