By Nate Raymond (Reuters) – A federal judge on Tuesday tossed most of a University of Kansas chemical engineering professor’s conviction for concealing work he did in China while conducting U.S. government-funded research, in the latest setback for a crackdown on Chinese influence within American academia. U.S. District Judge Julie Robinson in Kansas City, Kansas, ruled prosecutors presented insufficient evidence to support Feng “Franklin” Tao’s conviction on three wire fraud counts in April by a jury in her courtroom. She upheld his conviction on one count of making a false statement. Prosecu…