In this April 6, 2016, fi le photo, Iranian students prepare their robots during the international robotics competition, RoboCup Iran Open 2016, in Tehran, Iran

BOSTON, March 29, (AP): Hundreds of Iranian students already accepted into US graduate programs may not be able to come next fall because of the uncertainty surrounding President Donald Trump’s proposed travel ban, potentially derailing research projects and leaving some science programs scrambling to find new students.With admission season still in full swing, 25 of America’s largest research universities have already sent more than 500 acceptance letters to students from the six affected countries, according to data provided by schools in response to Associated Press requests.The vast majority of those students are from Iran, where undergraduate programs are known for their strength in engineering and computer sciences. The ban, which would suspend immigration from Iran, Sudan, Somalia, Libya, Syria and Yemen, has been blocked by federal judges. But if the court ruling is overturned or if Trump issues a new immigration ban, students would be locked out for next fall, legal experts say. “For us to not have access to that talent pool is a major, major blow. It is unimaginable in schools of engineering across the country to lose that talent,” said Kazem Kazerounian, dean of the School of Engineering at the University of Connecticut, which has accepted 15 Iranian students so far. The new uncertainty has steered some students to other nations that compete with the US for top students, including Canada, Australia and Japan, officials at some schools say.Students from Iran have helped fill graduate programs at American colleges for years, especially in engineering schools. Out of 12,000 Iranian students who attended US universities last year, 77 percent were graduate students and more than half studied engineering, according to data from the State Department and the Institute of International Education, a nonprofit in Washington.At the University of Central Florida, a third of the 115 students who have been accepted to graduate programs in civil and electrical engineering for next fall are from Iran. Iranian student Amir Soleimani, 26, has been accepted to two universities in the US, where he wants to pursue a doctorate in electrical engineering and continue his research on artificial intelligence. If he is kept out, he says, he’ll likely have to begin his two years of mandatory service in Iran’s military.Engineering“My future is very dependent on this ban,” said Soleimani, who lives in the city of Mashhad and has a master’s in electrical engineering from the University of Tehran. “We have spent lots of our time and our energy to apply to top universities, and now that we have been admitted to these universities, it is very disastrous to see we may be banned.” Once implemented, the ban would last 90 days, but even afterward it would likely be too late for students to complete the months-long process to obtain visas.Many US universities rely on international students to work as research and teaching assistants, particularly in engineering. Americans who study engineering as undergraduates often opt for the job market instead of graduate school, experts say, leaving them to rely heavily on international students. Some schools also rely on tuition money from foreign students, who are typically charged full costs. The University of Massachusetts at Amherst has offered acceptance to 42 Iranian students in graduate programs, and their absence would interfere with the progress of research, said John McCarthy, dean of the university’s graduate school. “It’s not something where we can just suddenly go out in the street and grab somebody who’s qualified to be a PhD student in electrical engineering,” Mc- Carthy said.At the University of Central Florida, 30 percent of the students working at the school’s Center for Research in Computer Vision are from Iran, and all of them play key roles in research, said Mubarak Shah, director of the center. Some, for example, are working on a $1.3 million project funded by a federal grant to develop computer technology that can quickly analyze thousands of hours of surveillance footage in an effort to help speed up criminal investigations. “We are concerned that this may hurt us long-term in research,” Shah said.