Abstract: A system is provided, comprising a two-sided adapter, made of a Ni-based alloy, that is connected at each of the two sides with a different type of metal, e.g. steel, and wherein the connection of the different types of metal, e.g. steel with the adapter is characterized in that it is achieved at least in part by use of friction welding. A method for linking different types of metal, e.g. steel by using a two-sided adapter as an intermediate, wherein at least one of the adapter-metal (e.g. steel) connections is made by means of friction welding, is also provided.

Abstract: A system is provided, comprising a two-sided adapter, made of a Ni-based alloy, that is connected at each of the two sides with a different type of metal, e.g. steel, and wherein the connection of the different types of metal, e.g. steel with the adapter is characterized in that it is achieved at least in part by use of friction welding. A method for linking different types of metal, e.g. steel by using a two-sided adapter as an intermediate, wherein at least one of the adapter-metal (e.g. steel) connections is made by means of friction welding, is also provided.

Abstract: A system is provided for detecting a change on a moving surface, for instance in color and/or texture, comprising: at least one light generating device for generating light to be directed to the moving surface; and at least one light sensor for capturing reflected light from the moving surface; wherein the change on the moving surface, for instance in color and/or texture, is detected based on the reflected light captured by the light sensor.

Abstract: A measurement processing system suitable for supporting condition monitoring of a wind turbine based upon measurements performed on electrical and mechanical parts of the wind turbine, and, while determining whether the wind turbine is connected to the electrical grid or not, determining information representative for shaft torque of the wind turbine and suited for condition monitoring of the wind turbine, based on said measurements.

Abstract: A system (200) is provided, comprising a two-sided adapter (205), made of a Ni-based alloy, that is connected at each of the two sides with a different type of metal, e.g. steel (201, 202), and wherein the connection (203) of the different types of metal, e.g. steel (201, 202) with the adapter (205), wherein it is achieved at least in part by use of friction welding. A method for linking different types of metal, e.g. steel (201, 202) by using a two-sided adapter (205) as an intermediate, wherein at least one of the adapter-metal (e.g. steel) connections (203) is made by means of friction welding, is also provided.

Abstract: The invention relates to a heat exchanger cooled by air (1) comprising a plurality of ventilation modules (104) arranged in several parallel rows, adjacent to one another and placed in the same horizontal plane to form a ventilation structure (100) which is spaced from the ground (S) so as to promote circulation of air under the ventilation structure. Each ventilation module comprises a fan (106) directed to suction air present below the ventilation structure and blow it vertically through heat exchange elements (204). The exchanger further comprises at least one rigid panel (300) forming a windscreen which extends vertically from a lateral edge of the ventilation structure to the ground at a height (h) between 5 and 50% of the distance separating the ventilation structure from the ground.