Purdue University
USA
Iowa State University
University of Florida
North Carolina State University
University of California, Davis
University of Illinois at Urbana-Champaign
Cornell University
Texas A&M University
Ohio State University
Virginia Polytechnic Institute and State University
University of Nebraska - Lincoln
The Pennsylvania State University
Kansas State University
Michigan State University
University of Wisconsin - Madison
Washington State University
Auburn University
University of Kentucky
University of Minnesota, Twin Cities
The University of Tennessee, Knoxville