Abstract: Embodiments described herein relate to an active antenna system. The active antenna system comprises an antenna array wherein the antenna array comprises a plurality of sub-arrays; a plurality of feed networks configured to couple respective signals from the plurality of sub-arrays to respective radio chains; and at least one coupling path configured to provide coupling between a first feed network and a second feed network, wherein the first feed network is coupled to a first sub-array and the second feed network is coupled to a second sub-array, wherein the coupling is of a higher magnitude than a lowest magnitude of mutual aperture couplings occurring between antenna elements in the first sub-array and the second sub-array.

Abstract: An arrangement and a computer implemented method for three-dimensional (3D) printing of at least one first vehicle component (first VC) for a vehicle is provided. The method includes receiving a request to form the first VC. The method includes obtaining a 3D model for the first VC. The method includes identifying at least one second vehicle component located in proximity to the first VC when mounted on the vehicle. Also, the method includes determining at least one breaking point of the first VC which avoids the first VC to come into contact with the identified at least one second vehicle component in case the first VC should break at the at least one breaking point. The method includes forming a 3D model for the first VC based on the request and the determined at least one breaking point. The method includes instructing a 3D printer to print the 3D model.

Abstract: The present disclosure relates to a computer implemented method for three-dimensional (3D) printing, for example for 3D printing spare parts for a vehicle The present disclosure also relates to a corresponding arrangement and to a computer program product.

Abstract: A method for controlling an operation of a three-dimensional (3-D) printer included with a vehicle includes receiving an indication of any one of a current force and an expected force affecting the operation of the 3-D printer; comparing any one of the current force and the expected force affecting the operation of the 3-D printer with a given force threshold; and adjusting a printing rate of the 3-D printer based on any one of the current force and the expected force affecting the operation of the 3-D printer.

Abstract: A disposable tattoo needle cartridge (14) for connecting to a tattoo machine drive unit comprises a cartridge housing (26) and a needle assembly (28) comprising a needle driver connector (36) and at least one needle (16), the needle driver connector (36) being connectable to a needle driver (38) of the tattoo machine drive unit (12) for receiving a reciprocating motion, the needle assembly (28) being slidingly arranged in the tattoo needle cartridge (26) to allow said reciprocating motion along a reciprocation axis (A), wherein the cartridge housing (26) has a front end portion provided with a needle nozzle for allowing the at least one needle (16) to reciprocatingly protrude from the tattoo needle cartridge (14); and a rear end portion (30) configured to be connected to the tattoo machine drive unit (12), wherein the needle driver connector (36) comprises a needle assembly magnet (44) for connecting to a mating drive magnet (46) of the needle driver (38) in a contact-less manner in a radial, with respect to

Abstract: A tattoo machine control system comprises a holding arrangement (1) for storing tattoo needle cartridges (3) for the moment not attached to a tattoo machine and a tattoo machine controller configured to 5 control a tattoo machine based on a tattoo machine setting. The holding arrangement (1) has a plurality of slots, each slot (13) being arranged for receiving a respective tattoo needle cartridge (3). The system is configured to maintain an association of a tattoo machine setting for said tattoo machine with a slot (13) 10 of said plurality of slots. The tattooing process is made more efficient.

Abstract: A system or a method to at least partially steer systems, e.g. heating and/or cooling and clusters of systems, when the controller of the system is unknown or when the transfer function of the system is unknown. The steering of the energy flow, e.g. heating/cooling/electrical energy, includes providing energy to the system or the cluster of systems and preferably to manage common constraints, like capacity problems.

Abstract: A system or a method to at least partially steer systems, e.g. heating and/or cooling and clusters of systems, when the controller of the system is unknown or when the transfer function of the system is unknown. The steering of the energy flow, e.g. heating/cooling/electrical energy, includes providing energy to the system or the cluster of systems and preferably to manage common constraints, like capacity problems.

Abstract: A tattoo machine control system comprises a holding arrangement (1) for storing tattoo needle cartridges (3) for the moment not attached to a tattoo machine and a tattoo machine controller configured to control a tattoo machine based on a tattoo machine setting. The holding arrangement (1) has a plurality of slots, each slot (13) being arranged for receiving a respective tattoo needle cartridge (3). The system is configured to maintain an association of a tattoo machine setting for said tattoo machine with a slot (13) of said plurality of slots. The tattooing process is made more efficient.

Abstract: A disposable tattoo needle cartridge (14) for connecting to a tattoo machine drive unit comprises a cartridge housing (26) and a needle assembly (28) comprising a needle driver connector (36) and at least one needle (16), the needle driver connector (36) being connectable to a needle driver (38) of the tattoo machine drive unit (12) for receiving a reciprocating motion, the needle assembly (28) being slidingly arranged in the tattoo needle cartridge (26) to allow said reciprocating motion along a reciprocation axis (A), wherein the cartridge housing (26) has a front end portion provided with a needle nozzle for allowing the at least one needle (16) to reciprocatingly protrude from the tattoo needle cartridge (14); and a rear end portion (30) configured to be connected to the tattoo machine drive unit (12), wherein the needle driver connector (36) comprises a needle assembly magnet (44) for connecting to a mating drive magnet (46) of the needle driver (38) in a contact-less manner in a radial, with respect to

Abstract: A method of controlling a tattoo machine power supply (14), comprises detecting a user interaction with the tattoo machine power supply (14); based on said user interaction, generating an activation signal; wirelessly transmitting the activation signal; and setting the tattoo machine power supply (14) in an active state, in which it is responsive to remote control commands.

Abstract: A method of controlling a tattoo machine power supply (14), comprises detecting a user interaction with the tattoo machine power supply (14); based on said user interaction, generating an activation signal; wirelessly transmitting the activation signal; and setting the tattoo machine power supply (14) in an active state, in which it is responsive to remote control commands.