Abstract: A method of automatically aligning a window within a user interface displayed on a screen includes predetermining, within the user interface, one or more areas to automatically align a window displayed on the screen within the one or within one of the plurality of areas, and activating a possibility of automatically aligning the window within the one or within one of the plurality of areas by or during actuation of a predetermined key.

Abstract: Modifiable platform assemblies are provided that can include at least two frame assemblies configured to reside one above the other and be rotatably connected in relation to one and the other along an axis extending substantially normal to an interface between the two assemblies. These platforms can be used to develop the golf swing. Accordingly, golf ball hitting practice methods are also provided.

Abstract: A method and system is provided for determining leakage resistances in a bus system. The bus system has a floating DC bus connected to bus voltage source. The system also includes a pair of known resistors, each connected to the bus by a switch. The method includes with the first switch closed and the second switch open, measuring a voltage Vprtp between the bus and the ground and measuring a voltage Vnrtp between the ground and the second terminal. The method also includes, with the first switch open and the second switch closed, measuring a voltage Vprtn between the bus and the ground and measuring a voltage Vnrtn between the ground and the second terminal. The first and second leakage resistances are then calculated as a function of the known resistors and the measured voltages.

Abstract: A method for powering a pitch motor drive system for at least one DC pitch motor of a wind turbine includes rectifying a voltage using a bridge circuit to thereby supply a DC link voltage to a bridge comprising active switching devices, and utilizing at least one link capacitor to smooth the DC link voltage and act as an energy sink and source for the DC pitch motor or motors.