Abstract: The current invention relates to a method of separating polyunsaturated fatty acids containing lipids from a lipids containing biomass.

Abstract: A device controls a power flow in an AC network and has a series converter with a DC side to connect to a DC link and an AC side to connect to the AC network via a series transformer. The device further has a bridging arrangement between the series transformer and the series converter configured to bridge the series converter. The bridging arrangement contains at least one bridging branch having a switching unit with antiparallel thyristors and a resistance in series with the switching unit. Furthermore, a method of operation operates the device.

Abstract: A device for controlling the feeding and discharging of electrical energy in or from a small producer network having at least one energy producer and at least one energy consumer. The device includes a transaction unit for communicating with at least one electronic energy trade prospect in order to negotiate and/or to define a transaction of a predefined quantity of energy; a measuring system for measuring a quantity of fed or discharged energy; a control system, which is in communication with the measuring system, designed to feed or to discharge the predefined quantity of energy via an electrical cable and controlled via a logic unit.

Abstract: A seal includes a supporting ring and at least one sealing ring. The at least one sealing ring has a sheath. The at least one sealing ring and the supporting ring are interconnected. The supporting ring has an outer periphery and is, at least in part, surrounded on the outer periphery by the sheath of the at least one sealing ring in a radial direction. The at least one sealing ring has at least one dynamically loaded sealing lip, which is arranged on a side of the at least one sealing ring facing radially away from the sheath. The at least one sealing ring includes an electrically conductive polymer material. The sheath and the sealing lip transition into one another as one piece.

Abstract: An arrangement for connecting first and second electrical supply systems includes a medium-voltage DC line, a first converter connected on the AC-voltage side to the first supply system and on the DC-voltage side to the DC line, a second converter connected on the AC-voltage side to the second supply system and on the DC-voltage side to the DC line, and a control device controlling electrical power transmission in the DC line by using at least one converter for transmitting a temporary excess of energy in the first supply system to the second supply system. A method for operating an electrical supply system includes making a temporary excess of energy in the supply system available to a further supply system connected to a medium-voltage DC line by using the line to which the supply system is connected by a converter, for stabilizing the supply system.

Abstract: A device for controlling the feeding and discharging of electrical energy in or from a small producer network having at least one energy producer and at least one energy consumer. The device includes a transaction unit for communicating with at least one electronic energy trade prospect in order to negotiate and/or to define a transaction of a predefined quantity of energy; a measuring system for measuring a quantity of fed or discharged energy; a control system, which is in communication with the measuring system, designed to feed or to discharge the predefined quantity of energy via an electrical cable and controlled via a logic unit.

Abstract: A seal includes a supporting ring and at least one sealing ring. The at least one sealing ring has a sheath. The at least one sealing ring and the supporting ring are interconnected. The supporting ring has an outer periphery and is, at least in part, surrounded on the outer periphery by the sheath of the at least one sealing ring in a radial direction. The at least one sealing ring has at least one dynamically loaded sealing lip, which is arranged on a side of the at least one sealing ring facing radially away from the sheath. The at least one sealing ring includes an electrically conductive polymer material. The sheath and the sealing lip transition into one another as one piece.

Abstract: A method of testing a device, especially a carburetter of an internal combustion engine, in which a predetermined constant fluid flow is imposed through the device, the fluid pressure at the inlet of the device is measured and the measured fluid pressure at the inlet is compared with a desired value of fluid pressure at the predetermined flow-through, whereafter an adjusting means is adjusted until the measured value is substantially equal to the predetermined value; and an apparatus for carrying out the method.