Abstract: A rechargeable battery device for providing three-phase alternating current independently of location is achieved. It comprises a housing providing for a three-phase alternating current output. One or more rechargeable battery packs, at least one bidirectional three-phase inverter as well as one or more common mode filters are accommodated in the housing. The housing incorporates one or more heatsinks with a heat-dissipating surface. The energy density of the rechargeable battery device corresponding to the gross capacity of the one or more rechargeable battery packs in relation to the residual weight of the rechargeable battery device is at least 0.1 kWh/kg, wherein the residual weight corresponds to a total weight of the rechargeable battery device minus a weight of the one or more rechargeable battery packs.

Abstract: The present invention relates to a time-continuous neural network circuit implemented on analog hardware with device mismatch, the circuit including a control unit (40) which is individually connected to each respective neuron of the circuit, the neurons in the hidden and output layers comprising a forward compartment for processing signals coming from preceding layers, a feedback compartment for processing feedback signals coming from the control unit and a central compartment for generating and sending a signal to the next layer or to the control unit. The control unit generates and sends to the feedback compartment of each respective neuron a feedback signal (Sf) based on the comparison between a network output signal (Sout) and a target signal (Star).

Abstract: A method for determining and/or verifying a status of a door system, wherein the door system has at least one first subsystem and one second subsystem, includes the following steps determining at least one item of measurement information relating to the door system is determined in a measuring step, and determining and/or verifying the status of the door system using a model and using the at least one determined item of measurement information in a status determination step, wherein the model has a first model block for the first subsystem and a second model block for the second subsystem.

Abstract: A method for determining and/or verifying a status of a door system includes the following steps: determining at least one item of measurement information relating to the door system in a measuring step, and determining and/or verifying the status of the door system using an artificial intelligence system and using the at least one determined item of measurement information in a status determination step.

Abstract: A handheld work apparatus has a fan wheel and a combustion engine having a cylinder and a crankcase. The fan wheel, arranged in a housing, is driven by the engine in a rotational direction. The housing includes a rear wall and a peripheral delimiter having a first and a second end delimiting an outlet for cooling air for the cylinder. The outlet extends from the second to the first end in the rotational direction. A throughflow-opening is provided in the housing, through which the cooling air flows out to the outside of the crankcase. The angular distance, measured proceeding from the first end in the rotational direction, between the first end and the throughflow-opening is smaller than the angular distance, measured proceeding from the throughflow-opening in the rotational direction, between the throughflow-opening and the second end. The angular distances are each measured about the rotational axis as a peripheral angle.

Abstract: A handheld work apparatus has a fan wheel and a combustion engine having a cylinder and a crankcase. The fan wheel, arranged in a housing, is driven by the engine in a rotational direction. The housing includes a rear wall and a peripheral delimiter having a first and a second end delimiting an outlet for cooling air for the cylinder. The outlet extends from the second to the first end in the rotational direction. A throughflow-opening is provided in the housing, through which the cooling air flows out to the outside of the crankcase. The angular distance, measured proceeding from the first end in the rotational direction, between the first end and the throughflow-opening is smaller than the angular distance, measured proceeding from the throughflow-opening in the rotational direction, between the throughflow-opening and the second end. The angular distances are each measured about the rotational axis as a peripheral angle.