Abstract: An arrangement includes a plurality of clusters and an interface through which a distributed federation database is accessible, wherein each of the clusters includes a cluster interface; a cluster local memory configured to store local cluster resources; and a federation controller. The federation controller is configured to: receive a first notification from the distributed federation database, wherein the first notification indicates a change relating to a federation resource in the distributed federation database; analyze the first notification; modify the local resource based on the analysis; and update a status of the federation resource in the distributed federation database when the local resource has been stored.

Abstract: A solenoid system and method can include: providing an energizing voltage to a coil of a solenoid; providing an AC signal superimposed onto the energizing voltage; detecting current through the coil including an AC current amplitude induced by the AC signal and including a DC offset current amplitude; determining the AC current amplitude is a low AC current amplitude based on an armature within the solenoid being in a retracted position or determining the AC current amplitude is a high AC current amplitude based on the armature being in an extended position with the control logic, and where the AC current amplitude is determined utilizing the AC signal for synchronous demodulation; and determining a temperature fault based on the DC offset current amplitude falling below a DC offset current amplitude threshold.

Abstract: A planet carrier for a planetary gear transmission for driving a wheel includes a housing for accommodating a sun wheel and planet wheels of a planetary gear transmission. The housing has an inner end and an opposite outer end. The inner end of the housing is provided with an inner end wall having an opening for receiving a drive shaft for driving the sun wheel. The outer end of the housing is provided with an outer end wall having through holes for mounting the planet wheels axially into the housing in the direction from the outer end towards the inner end.

Abstract: A propeller drive assembly for transferring a torque between an engine and at least one propeller of a water surface vessel includes a plurality of lubrication clients. The propeller drive assembly includes a first lubrication system arranged to house a first lubricant, dedicated for lubrication of at least one first of the lubrication clients, and a second lubrication system arranged to house a second lubricant, dedicated for lubrication of at least one second of the lubrication clients, the at least one second lubrication client includes a seal arranged to seal the second lubrication system from a body of water surrounding at least a portion of the propeller drive assembly, the second lubrication system being arranged to transport the second lubricant to the seal.

Abstract: A propeller drive assembly for transferring a torque between an engine and at least one propeller of a water surface vessel includes a plurality of lubrication clients. The propeller drive assembly includes a first lubrication system arranged to house a first lubricant, dedicated for lubrication of at least one first of the lubrication clients, and a second lubrication system arranged to house a second lubricant, dedicated for lubrication of at least one second of the lubrication clients, the at least one second lubrication client includes a seal arranged to seal the second lubrication system from a body of water surrounding at least a portion of the propeller drive assembly, the second lubrication system being arranged to transport the second lubricant to the seal.

Abstract: A planet carrier for a planetary gear transmission for driving a wheel includes a housing for accommodating a sun wheel and planet wheels of a planetary gear transmission. The housing has an inner end and an opposite outer end. The inner end of the housing is provided with an inner end wall having an opening for receiving a drive shaft for driving the sun wheel. The outer end of the housing is provided with an outer end wall having through holes for mounting the planet wheels axially into the housing in the direction from the outer end towards the inner end.

Abstract: A recirculating cooling unit includes a plurality of components which require supervision and maintenance. The interior of the cooling unit includes an open space, named a service area, designed to house a human working in the space, and the components are arranged so that they are accessible from the service area, and the cooling unit is provided with an opening design to allow a human to enter into the cooling unit and to enter the service area.

Abstract: A method and a circuit assembly for driving a 2-, 3- or more phase stepper motor by predetermined courses of current curves, especially for a microstep operation, is disclosed. For minimizing the memory capacity needed for storing supporting points of the course of the current curve by which the microsteps are realized, the course of the current curve is divided into a number of segments to which each a basic or main gradient between adjacent supporting points is assigned, so that for each of the supporting points only a deviation of the gradient at this supporting point from the related basic or main gradient has to be stored.

Abstract: A recirculating cooling unit includes a plurality of components which require supervision and maintenance The interior of the cooling unit includes an open space, named a service area, designed to house a human working in the space, and the components are arranged so that they are accessible from the service area, and the cooling unit is provided with an opening design to allow a human to enter into the cooling unit and to enter the service area.

Abstract: A method, node and computer program for a resource controller node for enabling automatic adaptation of the size of a pool of resource units, the resource units needed for operation of an application in a computer environment.

Abstract: A method and a circuit arrangement are provided in which a mechanical load applied to the motor shaft or a load angle of the motor can be detected without sensors in a stepper motor. This is achieved substantially based on the fact that the load or the load angle creates a mutually induced voltage (back EMF) in the motor coils and the load or the load angle is detected by determining the phase shift of the motor voltage at at least one of the motor coil relative to the coil current at said motor coil connection, the phase shift being caused by the mutually induced voltage. A method and a circuit arrangement are also provided wherein the motor current of a stepper motor can be controlled according to load angle in such a way that the current consumption of the motor is relatively low.

Abstract: A method and a circuit assembly for driving a 2, 3- or more phase stepper motor by predetermined courses of current curves, especially for a microstep operation, is disclosed. For minimizing the memory capacity needed for storing supporting points of the course of the current curve by which the microsteps are realized, the course of the current curve is divided into a number of segments to which each a basic or main gradient between adjacent supporting points is assigned, so that for each of the supporting points only a deviation of the gradient at this supporting point from the related basic or main gradient has to be stored.

Abstract: A method and circuit assembly are provided for controlling the motor current in an electric 3-phase motor, in particular in a 3-phase stepper motor, by a chopper process. For at least two of the three motor connections a respective chopper phase is cyclically activated, while a target motor current supplied for the motor connection in question is injected into the motor connection by a chopper process, while the two other motor connections are connected to each other.

Abstract: An exercise assembly simulating the muscular movements of a kayaker includes an elongate seat resiliently mounted on an elongate spine structure supported on adjustable pedestals that are each further resiliently mounted. At the front end an adjustably aligned pivot engages through a U-joint a simulated kayak paddle with the motion of the pivot resisted by restricted orifice cylinders mounted in the spine structure. A generally uniform adjustment arrangement is utilized to conform the assembly to the various users and/or various exercise levels.

Abstract: A method and a circuit arrangement are provided which enable a mechanical load applied to the motor shaft of a stepper motor (M) or a load angle of the stepper motor to be detected in a sensorless manner. A method and circuit arrangement are also provided which enable the motor current(s) of a stepper motor to be controlled in accordance with the load value such that the load angle is as high as possible without risking step losses, in order to maintain the current consumption of the motor as low as possible. This is achieved according by evaluating the temporal duration of the ON- and the FD-phases during the chopper control of the motor.

Abstract: A method and a circuit arrangement are provided in which a mechanical load applied to the motor shaft or a load angle of the motor can be detected without sensors in a stepper motor. This is achieved substantially based on the fact that the load or the load angle creates a mutually induced voltage (back EMF) in the motor coils and the load or the load angle is detected by determining the phase shift of the motor voltage at at least one of the motor coil relative to the coil current at said motor coil connection, the phase shift being caused by the mutually induced voltage.

Abstract: A method and circuit assembly are provided for controlling the motor current in an electric 3-phase motor, in particular in a 3-phase stepper motor, by a chopper process. For at least two of the three motor connections a respective chopper phase is cyclically activated, while a target motor current supplied for the motor connection in question is injected into the motor connection by a chopper process, while the two other motor connections are connected to each other.

Abstract: An exercise assembly simulating the muscular movements of a kayaker includes an elongate, generally rectangular seat structure supported on adjustable pedestals that are each resiliently mounted. At the front end an adjustably aligned pivot engages through a U-joint a simulated kayak oar with the motion of the pivot resisted by restricted orifice cylinders mounted in the seat structure. A generally uniform adjustment arrangement is utilized to conform the assembly to the various users and/or various exercise levels.

Abstract: An exercise assembly simulating the muscular movements of a kayaker includes an elongate seat resiliently mounted on an elongate spine structure structure supported on adjustable pedestals that are each further resiliently mounted. At the front end an adjustably aligned pivot engages through a U-joint a simulated kayak paddle with the motion of the pivot resisted by restricted orifice cylinders mounted in the spine structure. A generally uniform adjustment arrangement is utilized to conform the assembly to the various users and/or various exercise levels.

Abstract: A method and a circuit arrangement are provided which enable a mechanical load applied to the motor shaft of a stepper motor (M) or a load angle of the stepper motor to be detected in a sensorless manner. A method and circuit arrangement are also provided which enable the motor current(s) of a stepper motor to be controlled in accordance with the load value such that the load angle is as high as possible without risking step losses, in order to maintain the current consumption of the motor as low as possible. This is achieved according by evaluating the temporal duration of the ON- and the FD-phases during the chopper control of the motor.