Juanjia Yuan @juanjia-yuan Active 6 years, 11 months ago ActivityProfileSites 0Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Juanjia Yuan's profile was updated 7 years, 1 month ago Juanjia Yuan changed their profile picture 7 years, 1 month ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio