Abstract: A microwave printing device comprising an inlet for a filament 1 of an electrically conductive material, an outlet for the filament and a microwave heating device 4 for heating the filament 1 by means of microwave radiation. The microwave heating device 4 comprises at least one coaxial resonator. The coaxial resonator is formed by an outer conductor, which forms a cavity 11, and a coaxial inner conductor. The coaxial resonator also comprises a microwave radiation input for coupling in microwave radiation. The filament 1 preferably forms the inner conductor or part of the inner conductor of the resonator. A system for the additive manufacture of moulds, comprising the microwave printing device, and a process for the additive manufacture of moulds with the aid of the microwave printing device.

Abstract: A microtiter plate, preferably in the form of an injection-molded part composed of plastic, having at least one first and one second fluid chamber, which are designed in particular as measurement chambers and are connected to one another by a fluid channel which, in cross section, is closed or enclosed on all sides or all the way round, and the fluid channel is assigned a bubble trap, by way of which the movement of air or gas bubbles moving along a top wall portion or a top wall of the fluid channel, the top wall portion or the top wall closing or enclosing the fluid channel upwardly, in particular from one fluid chamber to another fluid chamber, can be stopped.

Abstract: An arrangement has an opto-pyrotechnic initiator, at least one laser, and an optical fibre, via which the laser radiation of the laser is guided to the opto-pyrotechnic initiator. Also disclosed is a method for improving the safety of such an opto-pyrotechnic initiator. At least one optical filter element having power-dependent or intensity-dependent transmission or reflection is arranged in the beam path of the laser radiation between the laser and the initiating impingement location of the laser radiation in the initiator. The filter element and the beam guidance for the laser radiation are selected such that for a laser power of the laser, that is intended to effect an initiation, the filter element has a higher transmission or reflection or can be switched to a higher transmission or reflection than for a lower laser power by application of an optical or electronic signal that is independent of the laser radiation.

Abstract: The invention relates to a perovskite-based multi-junction solar cell (110) and to a method for producing same.

Abstract: The invention relates to a sensor apparatus, comprising: at least one ferromagnetic element, which, in an operating state, can be arranged on a torque transmission apparatus; and a measuring apparatus, which has at least one measuring element. Each measuring element is configured to measure a ferromagnetic resonance frequency of at least one ferromagnetic element. The measuring apparatus is configured to determine a torque of the torque transmission apparatus on the basis of a shift in the measured ferromagnetic resonance frequency. The invention further relates to a method for determining a torque of a torque transmission apparatus.

Abstract: Techniques are described for enhancing the perceived gamut (PG) of a physical display device presenting frames of an image sequence to a human viewer wherein the gamut (DG) of the display device is given by the primary colors of the display device. An interface receives a sequence of frames from an image sequence source with each frame having input color data associated with each pixel of the respective frame. A white point computation module computes frame-specific target white points (TWP) to which the viewer would adapt when watching a respective frame on a display capable of showing all perceivable colors. A chromatic adaptation transformation module applies a temporal filter function to the target white points of all frames within a sliding window to compute a filtered white point and applies a chromatic adaptation transformation to one or more future frames by using the filtered white point.

Abstract: The present invention relates to highly conductive, printable inks for highly stretchable soft electronics, a process for their manufacture as well as a process for producing highly stretchable soft electronics.

Abstract: The present invention relates to a method for additive manufacturing of a 3D-structured form and to a device for additive manufacturing of a 3D-structured form.

Abstract: A method and arrangement for compensation of thermally induced depolarising effects in an optical resonator employ a retroreflective prism effecting multiple instances of total internal reflection as one end mirror of the resonator. The retroreflective prism has a first roof edge face pair made of two perpendicular roof edge faces and at least one second face with total internal reflection or a second roof edge face pair. Laser radiation entering parallel to the optical axis of the resonator undergoes total internal reflection through an angle ? at the second face or the second roof edge face pair before it undergoes total internal reflection at the first roof edge face pair and emerges again from the retroreflective prism in a manner parallel to the optical axis of the resonator following another instance of total internal reflection at the second face or the second roof edge face pair.

Abstract: A fibre laser assembly includes a pump laser assembly for optical pumping of an active fibre with first pump radiation of a first pump wavelength and means for the generation of second pump radiation at a second pump wavelength, which lies between the first pump wavelength and the wavelength of the seed laser. Doping concentration, length of the active fibre, and power of the first pump radiation are coordinated such that the active fibre absorbs the first pump radiation in the first fibre portion to >90%, the radiation of the second pump wavelength in the first fibre portion is amplified by the first pump radiation to generate the second pump radiation, and the laser radiation of the seed laser is amplified in the remaining second fibre portion by the second pump radiation.

Abstract: A device is provided for ultrasound-based reflection and transmission tomography. A plurality of ultrasonic transducers are held around an imaging volume to be filled with an ultrasonic coupling medium, the transducer holder having an opening for inserting, into the imaging volume, at least one part of a body to be imaged. During imaging, the body to be imaged is supported, where a support-member-opening allows access to the transducer holder by at least one part of the body. A diaphragm is arranged across the support-member-opening such that a center of a diaphragm-opening is placed substantially at a predetermined position. The ultrasonic coupling medium flows out of the imaging volume when at least one part of the body to be imaged is inserted into the imaging volume filled with the ultrasonic coupling medium and/or during imaging.

Abstract: A separating installation for separating magnetic and non-magnetic particles present in a suspension includes a stirring stage having a stirrer configured to create the suspension, a filter stage configured to filter the suspension according to grain size by at least one particle filter, and a screening stage having at least one wet screen. The separating installation further includes a magnetic filter stage having at least one magnetic filter. The stirring stage, the filter stage, the screening stage, and the magnetic stage are interconnected by a pipe system in such a way that they form a circuit.

Abstract: The invention relates to a method (110) for producing an electrically conductive connection (112, 112?) on a substrate (114), comprising the following steps: a) providing a substrate (114), wherein the substrate (114) is configured for receiving an electrically conductive connection (112, 112?); b) providing a reservoir of an electrically conductive liquid alloy, wherein the reservoir has a surface at which the alloy has an insulating layer; c) providing a capillary (120) configured for taking up the electrically conductive liquid alloy; d) penetrating of a tip (122) of the capillary (120) under the surface of the reservoir and taking up of a portion of the alloy from the reservoir; and e) applying the portion of the alloy at least partly to the substrate (114) in such a manner that an electrically conductive connection (112, 112?) is formed from the alloy on the substrate (114), wherein the alloy remains on the substrate (114) by adhesion.

Abstract: The invention relates to an optical waveguide component and to a method for the production thereof.

Abstract: A perceived gamut (PG) of a physical display device presenting frames of an image sequence to a human viewer may be increased. An interface of the system receives a sequence of frames from an image sequence source with each frame having input color data associated with each pixel of the respective frame, the input color data being given in a specified color space. A perceived color computation module computes for each particular frame of the received image sequence perceived colors of each pixel and a frame-specific adapted white point. An optimizer module applies a chromatic adaptation transformation to each window frame to determine display gamut adjusted perceived colors of each pixel of the respective frame and an error per window frame. The chromatic adaptation transformation is updated for all window frames to minimize the determined error, and the current frame is output to the display.

Abstract: An apparatus for producing methanol from carbon dioxide. The apparatus includes a first circulation process for a circulating water and methanol which includes an absorption stage for carbon dioxide, a desorption stage with a hydrogen feed, a first heat exchanger, an outlet, a circulation pump, and an expansion throttle. The second circulation process for methanol, water, carbon dioxide and hydrogen includes the desorption stage, a first liquid-gas phase separation stage with a return conduit for liquid phases to the desorption stage, and a gas outlet from and an inlet into the desorption stage. The third circulation process for carbon dioxide and hydrogen includes a methanol synthesis reactor, a gas outlet of the first liquid-gas phase separation stage which opens out into the third circular conduit and an inlet into which the third circular conduit opens, a second heat exchanger, a gas outlet in the third circular conduit, and a fan.

Abstract: Direct thermal decomposition of hydrocarbons into solid carbon and hydrogen is performed by a process and a device. The process comprises preheating a hydrocarbon gas stream to a temperature between 500° C. and 700° C. and injecting the pre-heated hydrocarbon gas stream into the reactor pool of a liquid metal reactor containing a liquid media; forming a multi-phase flow with a hydrocarbon gas comprising hydrogen and solid carbon at a temperature between 900° C. and 1200° C.; forming a carbon layer on the free surface of the liquid media made up of solid carbon particles which are then displaced into at least one carbon extraction system and at least one recipient for collecting them; and, at the same time, the gas comprising hydrogen leaves the reactor pool through a porous rigid section, being collected at a gas outlet collector from where the gas comprising hydrogen finally leaves the liquid metal reactor.

Abstract: The invention relates to an assembly for optical coupling and for mode-selective separation or overlaying of optical fields, to the use thereof and to a method for producing a waveguide-based optical coupling element (10) which is designed for mode-selective separation or overlaying of optical fields at a further optical coupling point (410) of an optical component (400).

Abstract: The invention relates to an apparatus (112) and to a method (210) for generating cryogenic temperatures.

Abstract: The invention relates to a power supply (110, 110? . . . ) for transporting electrical energy from an energy source (144) to a device (148) or from the device (148) to the energy source (144), the energy source (144) being arranged in a warm region (142) and the device (148) being arranged in a cold region (146). The power supply (110, 110?) has a stack (118) comprising at least two films (120, 120? . . . ), each film (120, 120? . . . ) comprising an electrically conductive material which is designed to transport the electrical energy, ach film (120, 120? . . . ) having an electrical connection which is designed to receive the electrical energy or to deliver the electrical energy, and each film (120, 120? . . . ) comprising a plurality of flow channels (128) for conveying a fluid stream, and the fluid stream comprising a refrigerant mixture or a gas stream to be cooled or a gas stream to be liquefied. The films (120, 120?, . . .