Abstract: A damping device and a wind turbine generator system comprising the damping device. The damping device comprises: damping components; structural supports, the structural supports connecting the damping components to a mass block provided on an object to be damped, each structural support comprising a gear, and the gear being rotatably provided on the structural support; and guide rails, wherein each guide rail has a predetermined curvature, each guide rail has a first end used for being rotatably connected to the object to be damped and a second end supported on the corresponding structural support, a tooth portion engaged with a gear is formed on a side portion of each guide rail, and when the mass block swings, the swing of the mass block is converted into transmission by means of the engagement transmission between the guide rail and the gear for input into the corresponding damping component.

Abstract: Generating an interactive discovery feed of place of interest items (POIs) relevant to a user is provided. A relevant POI discovery feed system curates a collection of narratives about various POIs from multiple sources and generates a plurality of POI content feed items including content items (e.g., photos, maps, links to additional information or related POIs) extracted from the collection of narratives. The system determines a set of POIs relevant to a user based on user-selected topics of interest and user preferences inferred from signals generated from user interactions with the system, and generates a discovery feed of POI content feed items associated with the set of relevant POIs for display to the user. In some examples, the items are presented in a card-based UI. Users are enabled to easily discover new places, view photos, and learn more about POIs in a consistent presentation of POI-related content feed items.

Abstract: Generating an interactive discovery feed of place of interest items (POIs) relevant to a user is provided. A relevant POI discovery feed system curates a collection of narratives about various POIs from multiple sources and generates a plurality of POI content feed items including content items (e.g., photos, maps, links to additional information or related POIs) extracted from the collection of narratives. The system determines a set of POIs relevant to a user based on user-selected topics of interest and user preferences inferred from signals generated from user interactions with the system, and generates a discovery feed of POI content feed items associated with the set of relevant POIs for display to the user. In some examples, the items are presented in a card-based UI. Users are enabled to easily discover new places, view photos, and learn more about POIs in a consistent presentation of POI-related content feed items.