Abstract: An electronic device provides, to a user, a user-curated playlist, the user-curated playlist including an ordered set of media items that were added by the user. While providing a first media item in the ordered set of media items, the electronic device receives a first user input selecting an option to include recommended media items in the user-curated playlist. In response to the first user input, the electronic device updates the user-curated playlist to include a first recommended media item, the first recommended media item selected without user intervention based at least in part on attributes of the user-curated playlist. The first recommended media item is positioned in the user-curated playlist in between media items that were added to the ordered set of media items by the user.

Abstract: Damping device for a percussion device of a hydraulic rock drilling machine (1) with a striking direction (R), including a damping piston (5) for action in an axial direction against a tool, wherein the damping piston (5) exhibits a first piston portion (6), which is received in a first damping chamber (7) and a second piston portion (8), which is received in a second damping chamber (9). In operation, in a normal striking position of said percussion device, the damping piston (5) is set against a fixed stop (19) against movements in the striking direction. A damping slot (10) is established between the first (7) and the second (9) damping chamber in all axial positions of the damping pistons, and the first damping chamber (7) is pressurized with a hydraulic pressure. The invention also concerns a percussion device and a rock drilling machine.

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating includes silicon nitride and has a thickness of from about 1 to about 15 micrometer wherein the silicon nitride coating has a composition defined by SixNyWz, where W is C, H and/or O, 2<x<4, 3<y<5, and z is such that the coating contains less than 20 atomic percent of C, H and O.

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating includes silicon nitride and has a thickness of from about 1 to about 15 micrometer wherein the silicon nitride coating has a composition defined by SixNyWz, where W is C, H and/or O, 2<x<4, 3<y<5, and z is such that the coating contains less than 20 atomic percent of C, H and O.

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapour deposition.

Abstract: The invention concerns a hydraulic striking tool for application in rock and/or concrete cutting equipment containing a machine housing (100;200) with a cylinder (115;215) with a moveably mounted piston (145;245) which during operation performs a repetitive forward and backward movement relative to the machine housing (100;200) and directly or indirectly strike a rock and/or concrete cutting tool (155;255), and where the piston (145;245) includes a driving part (165;265) which separates a first (120;220) and a second (105;221) driving chamber formed between the piston (145;245) and the machine housing (100;200) and where these driving chambers are arranged to include a pressurized working fluid during operation. The total volume V of the first and second driving chambers is inversely proportional dimensioned to the square of a for the striking tool recommended maximal pressure p, as well as proportional, by a proportionality constant k within the interval 5.3-21.

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapour deposition.

Abstract: Damping device for a percussion device of a hydraulic rock drilling machine (1) with a striking direction (R), including a damping piston (5) for action in an axial direction against a tool, wherein the damping piston (5) exhibits a first piston portion (6), which is received in a first damping chamber (7) and a second piston portion (8), which is received in a second damping chamber (9). In operation, in a normal striking position of said percussion device, the damping piston (5) is set against a fixed stop (19) against movements in the striking direction. A damping slot (10) is established between the first (7) and the second (9) damping chamber in all axial positions of the damping pistons, and the first damping chamber (7) is pressurized with a hydraulic pressure. The invention also concerns a percussion device and a rock drilling machine.

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapor deposition.

Abstract: A hydraulic impact mechanism, of the valveless impact mechanism type, comprising a pre-charged gas accumulator connected to a working chamber in order to make possible impact mechanisms for equipment for rock drilling and hydraulic breakers that is lighter, cheaper and more sustainable from the point of view of material fatigue. Furthermore, a gas accumulator of piston type with an integral brake chamber (240, 250, 360) and a piston (220, 320) designed to fit into the said brake chamber (240, 250, 360).

Abstract: An implant comprises a substrate and a coating on a surface of the substrate, and the coating comprises silicon nitride and has a thickness of from about 1 to about 15 micrometer. A method of providing the implant comprises coating a surface of the implant substrate with the coating comprising silicon nitride and having a thickness of from about 1 to about 15 micrometer by physical vapour deposition.

Abstract: The invention concerns a hydraulic striking tool for application in rock and/or concrete cutting equipment containing a machine housing (100;200) with a cylinder (115;215) with a moveably mounted piston (145;245) which during operation performs a repetitive forward and backward movement relative to the machine housing (100;200) and directly or indirectly strike a rock and/or concrete cutting tool (155;255), and where the piston (145;245) includes a driving part (165;265) which separates a first (120;220) and a second (105;221) driving chamber formed between the piston (145;245) and the machine housing (100;200) and where these driving chambers are arranged to include a pressurised working fluid during operation. The total volume V of the first and second driving chambers is inversely proportional dimensioned to the square of a for the striking tool recommended maximal pressure p, as well as proportional, by a proportionality constant k within the interval 5.3-21.

Abstract: A hydraulic impact mechanism, of the valveless impact mechanism type, comprising a pre-charged gas accumulator connected to a working chamber in order to make possible impact mechanisms for equipment for rock drilling and hydraulic breakers that is lighter, cheaper and more sustainable from the point of view of material fatigue. Furthermore, a gas accumulator of piston type with an integral brake chamber (240, 250, 360) and a piston (220, 320) designed to fit into the said brake chamber (240, 250, 360).

Abstract: An accumulator membrane unit (2) for inclusion into an accumulator chamber (6) in an accumulator (1) for storing hydraulic energy under pressure. The accumulator membrane unit includes membrane elements (3) that are sealingly joined at their peripheries and limit an inside membrane volume (V) which varies in dependence of a pressure at an outside of the accumulator membrane unit. The invention also concerns an accumulator, a method and a rock drilling machine.

Abstract: An arrangement for determining positions of the teats of an animal is provided in a milking system comprising a robot arm for automatically attaching teat cups to the teats of an animal when being located in a position to be milked, and a control device for controlling the movement of the robot arm based on determined positions of the teats of the animal.

Abstract: An accumulator membrane unit (2) for inclusion into an accumulator chamber (6) in an accumulator (1) for storing hydraulic energy under pressure. The accumulator membrane unit includes membrane elements (3) that are sealingly joined at their peripheries and limit an inside membrane volume (V) which varies in dependence of a pressure at an outside of the accumulator membrane unit. The invention also concerns an accumulator, a method and a rock drilling machine.

Abstract: The invention relates to a pulse generator (18) in an impulse generator (2) for a cutting tool (12), which pulse generator (18) is intended to transfer energy from a propulsion device (14) to impulses in the tool (12), where the pulse generator (18) comprises a rotatable cylinder drum (28) comprising at least one piston cylinder (30, 86, 88, 90, 92, 94, 96, 98), in which piston cylinder (30, 86, 88, 90, 92, 94, 96, 98) is arranged at least one piston (32, 87, 89, 91, 93, 95, 97, 99), which piston (32, 87, 89, 91, 93, 95, 97, 99) is arranged to compress fluid (29) during rotation of the cylinder drum (28), and that the cylinder drum (28) is arranged to discharge the fluid (29) to the propulsion chamber (6) in the discharge position of the piston (32, 87, 89, 91, 93, 95, 97, 99) via at least one opening (31, 72, 74, 76, 78, 80, 82, 84) opening into the piston cylinder in order to produce an impulse in the tool (12). The invention also relates to an impulse machine comprising an impulse generator (2).

Abstract: An arrangement for determining positions of the teats of an animal is provided in a milking system comprising a robot arm for automatically attaching teat cups to the teats of an animal when being located in a position to be milked, and a control device for controlling the movement of the robot arm based on determined positions of the teats of the animal.

Abstract: The present invention relates to a method and an arrangement for controlling drilling parameters when rock drilling. The arrangement is arranged such that a drill tool is connectable to a drilling machine by means of one or more drill string components, wherein the arrangement comprises means for rotating the drill tool during rock drilling and for providing a tightening torque for tightening joints between one or more from the group: drill tool, one or more drill string components and drilling machine. The arrangement is arranged to control the rotational speed of the drill tool based on available tightening torque.

Abstract: The invention relates to a pulse generator (18) in an impulse generator (2) for a cutting tool (12), which pulse generator (18) is intended to transfer energy from a propulsion device (14) to impulses in the tool (12), where the pulse generator (18) comprises a rotatable cylinder drum (28) comprising at least one piston cylinder (30, 86, 88, 90, 92, 94, 96, 98), in which piston cylinder (30, 86, 88, 90, 92, 94, 96, 98) is arranged at least one piston (32, 87, 89, 91, 93, 95, 97, 99), which piston (32, 87, 89, 91, 93, 95, 97, 99) is arranged to compress fluid (29) during rotation of the cylinder drum (28) , and that the cylinder drum (28) is arranged to discharge the fluid (29) to the propulsion chamber (6) in the discharge position of the piston (32, 87, 89, 91, 93, 95, 97, 99) via at least one opening (31, 72, 74, 76, 78, 80, 82, 84) opening into the piston cylinder in order to produce an impulse in the tool (12). The invention also relates to an impulse machine comprising an impulse generator (2).