For students
In order to study in Korea for more than 90 days, you need to apply for the D-2 student visa. A student visa can be obtained at Korean consulates. For more information, visit http://en.chonbuk.ac.kr, or Korea immigration service homepage, http://www.immigration.go.kr.
For Professors
Foreign professors need to apply for the E-1 professor visa. For more information, visit http://en.chonbuk.ac.kr, or Korea immigration service homepage, http://www.immigration.go.kr.