BLACKSBURG, Virginia, Feb. 11 -- Virginia Tech issued the following news: * * * Rohit Kannan receives CAREER award to explore new approaches to energy and infrastructure problems Kannan, assistant professor of industrial and systems engineering, received over $600,000 from the National Science Foundation for the five-year project. By Jordi Shelton Electricity doesn't flow through a power grid the same way every day -- or even every minute. To keep the lights on, engineers must repeatedly s  more