Abstract: An active noise cancellation system for reducing unwanted noise in a target area by attenuating a disturbance noise signal (d(n)), which is the remaining noise in the target area originated from an ambient noise signal (x(n)) present in the vicinity of the target area that is transferred to the target area via a main path described by a transfer function P(z)), the active noise cancellation system including a processing unit that implements an ANC-controller which is configured to provide a control signal (y?(n)) for controlling a speaker in the target area in order to generate an acoustic signal (y(n)) that destructively overlaps with the disturbance noise signal (d(n)) and thereby attenuates the same.

Abstract: Fuel cell arrangement having an improved efficiency. The arrangement comprises one or more fuel cell units 110 and a methanation unit 200 and a control unit 300. The fuel cell unit comprises a water inlet 111, a hydrogen outlet 112 and an oxygen outlet 113. The methanation unit comprises a catalyst 222, a hydrogen inlet 213, a carbon oxide inlet 214 having a first controllable valve 215 and a methane outlet 216, wherein the hydrogen outlet of the first fuel cell unit is coupled to the hydrogen inlet of the methanation unit, and the methanation unit is adapted to convert hydrogen and carbon oxide into methane, wherein the control unit is adapted to control the first controllable valve so as to obtain an optimum converting process to convert hydrogen and carbon oxide into methane.

Abstract: The subject matter of the invention is a trackless tugger train having at least one transportation module and at least two axle modules. Each transportation module is arranged between two axle modules, wherein each axle module has a wheel axle and a steering device for steering the wheel axle, wherein the steering devices of the axle module are embodied in each case in such a way that each steering device steers the axle module which is assigned to it, independently of a steering device of another axle module.

Abstract: Fuel cell arrangement having an improved efficiency. The arrangement comprises one or more fuel cell units 110 and a methanation unit 200 and a control unit 300. The fuel cell unit comprises a water inlet 111, a hydrogen outlet 112 and an oxygen outlet 113. The methanation unit comprises a catalyst 222, a hydrogen inlet 213, a carbon oxide inlet 214 having a first controllable valve 215 and a methane outlet 216, wherein the hydrogen outlet of the first fuel cell unit is coupled to the hydrogen inlet of the methanation unit, and the methanation unit is adapted to convert hydrogen and carbon oxide into methane, wherein the control unit is adapted to control the first controllable valve so as to obtain an optimum converting process to convert hydrogen and carbon oxide into methane.

Abstract: Fuel cell arrangement having an improved efficiency. The arrangement comprises one or more fuel cell units 110 and a methanation unit 200 and a control unit 300. The fuel cell unit comprises a water inlet 111, a hydrogen outlet 112 and an oxygen outlet 113. The methanation unit comprises a catalyst 222, a hydrogen inlet 213, a carbon oxide inlet 214 having a first controllable valve 215 and a methane outlet 216, wherein the hydrogen outlet of the first fuel cell unit is coupled to the hydrogen inlet of the methanation unit, and the methanation unit is adapted to convert hydrogen and carbon oxide into methane, wherein the control unit is adapted to control the first controllable valve so as to obtain an optimum converting process to convert hydrogen and carbon oxide into methane.

Abstract: A railless tugger train (100) includes a train module (10), at least one transportation module and at least two axis modules, wherein each axis module has a stiffly configured axis beam, at which a first mounting device is configured in the form of a stiff mounting of the train module or a transportation module and at which a second mounting device is configured for an articulated connection of a transportation module. At least two wheels (19) are mounted at the axis beam in such a way that the wheels are each rotatable around a rotation axis (D) which is configured vertical to the longitudinal axis (L) of the axis beam.

Abstract: The invention relates to a method for generating a multichannel audio signal (600, 700) from a stereo audio signal (100, 200), having the following steps: ascertaining a first panning coefficient (310) and a second panning coefficient (320) of the stereo audio signal; ascertaining a direct signal (515) as well as a first surroundings signal (510) and a second surroundings signal (520) from the first audio signal and the second audio signal and from the first panning coefficient and the second panning coefficient; ascertaining a plurality of repanning coefficients (410, 415, 420) from the panning coefficients, each repanning coefficient of the plurality of repanning coefficients being assigned to an audio channel (580, 585, 590) of a plurality of audio channels of the multichannel audio signal; calculating each direct signal using each of the repanning coefficients of the plurality of repanning coefficients; and converting each audio channel into a playback signal (600, 700) of the multichannel audio signal, e

Abstract: The subject matter of the invention is a trackless tugger train (100) having at least one transportation module (10) and at least two axle modules (11), wherein each transportation module (11) is arranged between two axle modules (11), wherein each axle module (11) has a wheel axle (12) and a steering device for steering the wheel axle (12), wherein the steering devices of the axle module (11) are embodied in each case in such a way that each steering device steers the axle module (11) which is assigned to it, independently of a steering device of another axle module (11).

Abstract: Fuel cell and/or high-pressure electrolysis cell and a fuel cell membrane arrangement for improved control of a fuel cell by an actuator connected to the fuel cell membrane.

Abstract: Fuel cell arrangement having an improved efficiency. The arrangement comprises one or more fuel cell units 110 and a methanation unit 200 and a control unit 300. The fuel cell unit comprises a water inlet 111, a hydrogen outlet 112 and an oxygen outlet 113. The methanation unit comprises a catalyst 222, a hydrogen inlet 213, a carbon oxide inlet 214 having a first controllable valve 215 and a methane outlet 216, wherein the hydrogen outlet of the first fuel cell unit is coupled to the hydrogen inlet of the methanation unit, and the methanation unit is adapted to convert hydrogen and carbon oxide into methane, wherein the control unit is adapted to control the first controllable valve so as to obtain an optimum converting process to convert hydrogen and carbon oxide into methane.

Abstract: The subject matter of the invention is a trackless tugger train (100) having at least one transportation module (10) and at least two axle modules (11), wherein each transportation module (11) is arranged between two axle modules (11), wherein each axle module (11) has a wheel axle (12) and a steering device for steering the wheel axle (12), wherein the steering devices of the axle module (11) are embodied in each case in such a way that each steering device steers the axle module (11) which is assigned to it, independently of a steering device of another axle module (11).

Abstract: The invention relates to a method for generating a multichannel audio signal (600, 700) from a stereo audio signal (100, 200), having the following steps: ascertaining a first panning coefficient (310) and a second panning coefficient (320) of the stereo audio signal; ascertaining a direct signal (515) as well as a first surroundings signal (510) and a second surroundings signal (520) from the first audio signal and the second audio signal and from the first panning coefficient and the second panning coefficient; ascertaining a plurality of repanning coefficients (410, 415, 420) from the panning coefficients, each repanning coefficient of the plurality of repanning coefficients being assigned to an audio channel (580, 585, 590) of a plurality of audio channels of the multichannel audio signal; calculating each direct signal using each of the repanning coefficients of the plurality of repanning coefficients; and converting each audio channel into a playback signal (600, 700) of the multichannel audio signal, e

Abstract: Fuel cell and/or high-pressure electrolysis cell and a fuel cell membrane arrangement for improved control of a fuel cell by an actuator connected to the fuel cell membrane.