Abstract: A device is provided for injection of a liquid agent, such as fuel or reducing agent, into the exhaust line from a combustion engine. The device (1) has a nozzle arrangement (20) having a nozzle head (21), from which the liquid agent is injectable into the exhaust line. The nozzle arrangement (20) has a first conduit (22) leading to the nozzle head (21) for supply of compressed gas, preferably in the form of compressed air, to the nozzle head, and a second conduit (23) leading to the nozzle head (21) for supply of the liquid agent to the nozzle head. The nozzle head (21) is provided with at least one outlet opening (24) connected to the first conduit (22) and to the second conduit (23), through which outlet opening the liquid agent is injectable into the exhaust line under atomization thereof after mixing with compressed gas in a mixing zone (25) inside the nozzle head.

Abstract: Devices and methods to use base stations to communicate with user equipment (UE) terminals in an indoor setting are disclosed. For example, user equipments such as mobile telephone devices may be used in a building with multiple floors. The building may be supplied with antenna elements organized into antenna groups with each group serving an area of the building—a floor for example. The base station, utilizing the antenna groups, communicates with the UE terminals via one or more radio resources. The base station manages radio resources to communicate with multiple UE terminals. The base station selectively activates and deactivates the antenna groups to reduce multiple access interference and to efficiently utilize the radio resources.

Abstract: A method and a system for calibrating the reception and transmission of an antenna array for use in a cellular communication system is disclosed. The calibration of the reception of the antenna array is performed by injecting a single calibration signal into each of a number of receiving antenna sections, in parallel. The signals are collected after having passed receiving components that might have distorted the phase and amplitude. Correction factors are generated and applied to received signals. The calibration of the transmission of the antenna array is performed in a similar way. A single calibration signal is generated and injected into each of a number of transmitting antenna sections, one at a time. The signals are collected, one at a time, after having passed transmitting components that might have distorted the phase and amplitude. Correction factors are generated and applied to signals that are to be transmitted.

Abstract: A method, and associated apparatus, for determining cell relationships in a radio communication system, such as a cellular communication system. The cell relationships describe how communications in a cell are disturbed by communications in other cells. The cell relationships are used, for example, in frequency planning procedures and procedures by which to determine neighbor cell lists.

Abstract: According to the invention, a web of material presenting periodic string parts is provided with garnishing material by forming loops of garnishing material around the net yarn, and subsequently fastening the loops together by applying high frequency energy. This is effected in an automatic machine in which string parts together with accompanying garnishing are inserted into apertures formed on a drum by means of electrodes which are mutually separated during the process of insertion and which are then clamped together and supplied with high frequency energy, whereafter the electrodes are again separated to release the string material and garnishing.

Abstract: According to the invention, a web of material presenting periodic string Darts is provided with garnishing material by forming loops of garnishing material around the net yarn, and subsequently fastening the loops together, preferably by applying high frequency energy. This is preferably effected in an automatic machine, in which string parts together with accompanying garnishing are inserted into apertures formed on a drum by means of electrodes which are mutually separated during the process of insertion and which are then clamped together and supplied with high frequency energy, where after the electrodes are again separated to release the string material and garnishing.

Abstract: A liquid dosing apparatus comprises a tank (8) to be repeatedly filled with liquid to an upper level; a float (24) adapted to rise in the tank concurrently with the filling thereof and, each time the upper level has been reached, to be wholly or partly filled with liquid so as to sink in the tank, thus actuating a draining siphon (15) which drains the tank to a lower level; and a float siphon (27) draining the float (24) so that this will float again when the liquid level rises after the tank has been drained. The actuating of the draining siphon (15) by the float (24) is achieved by the provision of a chamber (13) which communicates with the tank (8) so as to be filled with liquid when the tank (8) is being filled, an inlet (20) of the draining siphon (15) being connected to the chamber (13). The sinking movement of the float (24) reduces the amount of liquid in the chamber (13), the liquid being pressed into the inlet (20) of the draining siphon for actuating the latter.

Abstract: The invention concerns a catalyst for oxidation of hydrocarbons and carbon monoxide and/or reduction of nitrogen oxides. The catalyst consists of a carrier body and on this a catalytical coating, which consists of a washcoat layer containing a support material with a high specific surface area, one or more metal oxides with a promoting effect and at least two catalytically active noble metals within the washcoat or on the washcoat. The catalytical coating consists of at least two washcoat layers containing different amounts of at least one noble metal, in such a way that at least one noble metal is concentrated to more than 50% by weight of its total amount to at least one of the layers and that at least two noble metals are contained together in at least one of the layers.The invention also concerns a process for the preparation of said catalyst in order to obtain said layers with different composition of noble metals.

Abstract: A device for a suspended ceiling structure (1) for rectangular filter elements (2, 3). Some filter elements are located at a distance from each other to allow the suspension of light fittings from the suspended ceiling structure. An air stream is forced to flow out from the filter elements in the direction downwards towards the floor and vanes (8, 9) are then arranged substantially at the same level as and adjacent to at least one of those lateral surfaces of the fitting, which face the filter elements. The vanes are arranged at an angle to the air stream in such a way that the air is deflected and is made to flow towards a region (10) immediately below the light fitting.