Abstract: The disclosure relates to a method for operating a fuel cell that comprises at least one individual cell with a membrane and catalysts, wherein humidity within the fuel cell is actively influenced as a function of a voltage of the fuel cell, and the method further includes specifying an initial humidity at an initial operating-point-related voltage, and specifying a second humidity that is lower than the first humidity at a second operating-point-related voltage that is higher than the first operating-point-related voltage. Furthermore, the disclosure relates to a fuel cell system that is configured to perform the method according to the disclosure.

Abstract: The disclosure relates to a method for operating a fuel cell that comprises at least one individual cell with a membrane and catalysts, wherein humidity within the fuel cell is actively influenced as a function of a voltage of the fuel cell, and the method further includes specifying an initial humidity at an initial operating-point-related voltage, and specifying a second humidity that is lower than the first humidity at a second operating-point-related voltage that is higher than the first operating-point-related voltage. Furthermore, the disclosure relates to a fuel cell system that is configured to perform the method according to the disclosure.

Abstract: Systems and methods are disclosed for performing processing involved with search, such as processing search information to return search results. In one exemplary implementation, there is provided a method for processing information to return search results including mixed-media media presentation(s) selectable by a user. Moreover, such method may involve user interaction to manipulate the presentation, display various media and/or effect other functionality. Further implementations may involve generation of interactive, visually rich mixed-media content of high information density providing improved user experience and/or improved value to various participants.

Abstract: The invention relates to a membrane electrode assembly for a fuel cell and a method for producing and a production device for producing such a membrane electrode assembly. In order to be able to provide a fuel cell which has the membrane electrode assembly so as to have a high energy density, there is provision according to the invention for the sealing element to be pressed into the gas diffusion layer.