Abstract: Disclosed in the present utility model is a hub electric motor, comprising a hub, wherein the hub comprises an inner side cover and an outer side cover, a wheel shaft penetrates the axis positions of the inner side cover and the outer side cover, one end of the wheel shaft is fixed to the inner side cover, and the other end of the wheel shaft is located in a wheel shaft hole of the outer side cover: the inner side cover is fixed to a vehicle body, and the outer side cover can rotate around the wheel shaft.

Abstract: A motor brake device, comprising a supporting assembly (1), a movable rotating disc (2), a pressing assembly (4), a lower cover (5), a sliding block (6), an elastic member, a brake assembly (7), and an upper cover (8).

Abstract: Systems and methods are described for the identification and classification of a social media posting. In various aspects, image-based data and text-based data may be collected from one or more social media data sources associated with a social media posting. Event related data may then be extracted from each of the image-based data and the text-based data, in which the event related data is indicative of one or more life events associated with a social media user who posted the social media posting. One or more life event classifications may be determined from the event related data and an activity, such as sending a message or article to the social media user, may be triggered as a result.