Jiayuan Zhang @jiayuan-zhang Active 2 years, 9 months ago ActivityProfileSites 1Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Jiayuan Zhang changed their profile picture 5 years, 1 month ago Jiayuan Zhang's profile was updated 5 years, 1 month ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio