Actually I just noticed Chemistry and Chemical Engineering, regardless of which university, seems to offer admission right now without interviews. Maybe it is because it is easier to publish in these fields so they only need to look into publications?
I mean, according to the survey, some field like Chemistry and Chemical Engineering send out admission so early. I do not think they have interviews or anything. Just out of curiosity, is this related to the nature of research or it is a culture thing formulated through years of competitions between programs.