Abstract: A method for operating a wind power installation for the purpose of generating electrical power from wind, wherein the wind power installation has an aerodynamic rotor having rotor blades that can be adjusted in their blade angle, and the rotor is operated at a settable rated rotor speed, wherein a turbulence class at a site of the wind power installation is determined, and the rated rotor speed is defined in dependence on the determined turbulence class.

Abstract: Systems, devices and method for laser Doppler-based fluid flow analysis. A Laser Doppler Velocimetry (LDV) technique may be used to analyze fluid flows in various contexts, such as blood flow in mechanical circulatory support (MCS) systems, and in other applications. Fluid velocity and volumetric flow may be measured. A laser source, optical fiber, and/or a photodiode may be used. Some embodiments may assess particulate parameters such as hemoglobin concentration in blood, reduce spectral noise via flow disturbance, reduce spectral noise using light of particular wavelength ranges, reduce noise via data analysis and signal processing techniques, and/or determine flow rate based on a non-linear relationship between a first weighted moment and the fluid flow.

Abstract: A rotor blade of a wind turbine, to an associated wind turbine and to an associated method. A rotor blade for a wind turbine, which extends in the longitudinal direction with a profile course from a blade connector to a blade tip, wherein the profile course comprises a course of a lift coefficient, comprising a hub portion adjacent to the blade connector and a tip portion adjacent to the blade tip, a middle portion adjacent to the hub portion and to the tip portion, wherein the middle portion substantially comprises those profile sections which have a relative profile thickness, which is defined as the ratio of maximum profile thickness to profile depth, of between 20% and 30%, and wherein the middle portion comprises a local minimum of the course of the lift coefficient.

Abstract: The present disclosure relates to a rotor blade of a wind power installation, at least comprising a first rotor blade component having: a first end for arranging on the wind power installation, and a second end for connecting to a second rotor blade component; a second rotor blade component having: a first end for arranging on the first rotor blade component, and a second end wherein the first rotor blade component can be connected to the second rotor blade component at a separating point to the rotor blade, wherein the rotor blade has an aerodynamically open profile at the separating point.

Abstract: A rotor blade of a wind turbine, to an associated wind turbine and to an associated method. A rotor blade for a wind turbine which extends in the longitudinal direction with a profile course from a blade connector to a blade tip, wherein the profile course comprises a course of a lift coefficient, comprising a hub portion adjacent to the blade connector and a tip portion adjacent to the blade tip, a middle portion adjacent to the hub portion and to the tip portion, wherein the middle portion substantially comprises those profile sections which have a relative profile thickness, which is defined as the ratio of maximum profile thickness to profile depth, of between 20% and 30%, and wherein the middle portion comprises a local minimum of the course of the lift coefficient.

Abstract: A method for operating a wind power installation is provided. The wind power installation comprises an aerodynamic rotor with rotor blades, where the rotor can be operated with a variable rotor rotation speed. The wind power installation outputs an output power generated from wind for feeding into an electrical supply grid. The wind power installation can be operated in a normal operating mode without power reduction and in a reduced operating mode with power reduction, in which a specified power reduced with respect to a rated installation power is specified. When operating in the reduced operating mode for wind speeds above a rated wind speed, at least in one rotation speed increase region, the wind power installation increases its rotor rotation speed as the wind speed rises further.

Abstract: An apparatus for tracking eye gaze includes a capacitive sensor array having a plurality of capacitive sensors. The capacitive sensor array is configured to detect eye movement based at least on a proximity of the plurality of capacitive sensors to a part of an eye of a user (e.g., a bulge in the cornea). A frame of the apparatus is configured to be worn on a head of the user and configured to support the capacitive sensor array positioned in front of the eye. A control circuit of the apparatus is configured to receive signals from the capacitive sensor array. A body electrode of the apparatus is positioned on the frame and electrically connected to the control circuit, the body electrode configured to establish an electrical connection with a body of the user. A conductive line of the apparatus connects the body electrode to the control circuit.

Abstract: A method for operating a wind power installation for the purpose of generating electrical power from wind, wherein the wind power installation has an aerodynamic rotor having rotor blades that can be adjusted in their blade angle, and the rotor is operated at a settable rated rotor speed, wherein a turbulence class at a site of the wind power installation is determined, and the rated rotor speed is defined in dependence on the determined turbulence class.

Abstract: A method for operating a wind power installation is provided. The wind power installation comprises an aerodynamic rotor with rotor blades, where the rotor can be operated with a variable rotor rotation speed. The wind power installation outputs an output power generated from wind for feeding into an electrical supply grid. The wind power installation can be operated in a normal operating mode without power reduction and in a reduced operating mode with power reduction, in which a specified power reduced with respect to a rated installation power is specified. When operating in the reduced operating mode for wind speeds above a rated wind speed, at least in one rotation speed increase region, the wind power installation increases its rotor rotation speed as the wind speed rises further.

Abstract: An energy store is described. The energy store includes at least one storage cell and one storage cell management system, which includes a charge distribution circuit for monitoring the charging and discharging of the storage cell, the energy store being shiftable by the storage cell management system into an active state or into a passive state, the storage cell management system including a logic circuit, including a switch for switching between the active state and the passive state and the switch being switchable by inserting the energy store into a guide. An energy storage system including such an energy store and a guide, is also described.

Abstract: An apparatus for tracking eye gaze includes a capacitive sensor array having a plurality of capacitive sensors. The capacitive sensor array is configured to detect eye movement based at least on a proximity of the plurality of capacitive sensors to a part of an eye of a user (e.g., a bulge in the cornea). A frame of the apparatus is configured to be worn on a head of the user and configured to support the capacitive sensor array positioned in front of the eye. A control circuit of the apparatus is configured to receive signals from the capacitive sensor array. A body electrode of the apparatus is positioned on the frame and electrically connected to the control circuit, the body electrode configured to establish an electrical connection with a body of the user. A conductive line of the apparatus connects the body electrode to the control circuit.

Abstract: An apparatus for tracking eye gaze includes a capacitive sensor array having a plurality of capacitive sensors. The capacitive sensor array is configured to detect eye movement based at least on a proximity of the plurality of capacitive sensors to a part of an eye of a user (e.g., a bulge in the cornea). A frame of the apparatus is configured to be worn on a head of the user and configured to support the capacitive sensor array positioned in front of the eye. A control circuit of the apparatus is configured to receive signals from the capacitive sensor array. A body electrode of the apparatus is positioned on the frame and electrically connected to the control circuit, the body electrode configured to establish an electrical connection with a body of the user. A conductive line of the apparatus connects the body electrode to the control circuit.

Abstract: A method of operating an autostereoscopic display, the autostereoscopic display device comprising a switchable aperture array and a screen, the method comprising: displaying a portion of an image on the screen for a first period of time; and using the switchable aperture array to restrict to a second period of time the time for which a portion of the image is wholly or partly visible; wherein the second period of time is less than the first period of time in order to increase the bandwidth of the autostereoscopic display.

Abstract: An apparatus for tracking eye gaze includes a capacitive sensor array having a plurality of capacitive sensors. The capacitive sensor array is configured to detect eye movement based at least on a proximity of the plurality of capacitive sensors to a part of an eye of a user (e.g., a bulge in the cornea). A frame of the apparatus is configured to be worn on a head of the user and configured to support the capacitive sensor array positioned in front of the eye. A control circuit of the apparatus is configured to receive signals from the capacitive sensor array. A body electrode of the apparatus is positioned on the frame and electrically connected to the control circuit, the body electrode configured to establish an electrical connection with a body of the user. A conductive line of the apparatus connects the body electrode to the control circuit.

Abstract: A shutter for an autostereoscopic display, said shutter comprising a first switchable aperture array having a relatively fast switching time from a substantially transparent state to a substantially opaque state, and a second switchable aperture array having a relatively fast switching time from a substantially opaque state to a substantially transparent state, wherein said first switchable aperture array and said second switchable aperture at least partially overlap.

Abstract: A method of operating an autostereoscopic display, the autostereoscopic display device comprising a switchable aperture array and a screen, the method comprising: displaying a portion of an image on the screen for a first period of time; and using the switchable aperture array to restrict to a second period of time the time for which a portion of the image is wholly or partly visible; wherein the second period of time is less than the first period of time in order to increase the bandwidth of the autostereoscopic display.

Abstract: A method of creating image data, the image data suitable for use with an autostereoscopic display, the method comprising taking a plurality of samples of a 3D scene, each sample taken for the combination of a pixel on a 2D display and an aperture of the autostereoscopic display, wherein the center line of projection for all samples for a particular aperture pass through substantially the same point of the aperture.

Abstract: According to the present invention is provided a method of control of noise emission from a wind park in operation, the wind park comprising a plurality of wind turbines.

Abstract: This invention relates to a method of measuring mass flow of a first gas component in a gas consisting of one or more known gas components. Typically such methods assume that certain parameters were constant, such as the gas composition, pressure and/or temperature, and likewise the heat capacity, density, etc., of the gas were presumed to be such that they could be determined to have a constant value. However, it has been found that the determination of the mass flow is associated with a comparatively high degree of measurement uncertainty, when it is assumed that the parameters are constant. The core of the invention relies on this discovery and on a method wherein all of the gas parameters that are used in the determination of the mass flow of the first gas component and that may vary considerably as a function of the gas composition, pressure and/or temperature are determined continually.

Abstract: According to the present invention is provided a method of control of noise emission from a wind park in operation, the wind park comprising a plurality of wind turbines.