Jiayuan Zhang @jiayuan-zhang Active 2 years, 8 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 4 years, 12 months ago Jiayuan Zhang's profile was updated 4 years, 12 months ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio