Words like "milking" and "feedlot" might be most commonly associated with a cow pasture. But for Highland Heights-based Phycal, something else comes to mind: algae. The burgeoning bio-tech company is developing a production system for growing algae and extracting its energy � converting its oil to biodiesel. That finished product can be used as replacements for diesel, jet-fuel and other energy products. Phycal's variety of innovation has drawn lots of attention. Both Crain's and BusinessWeek featured the up-and-coming Phycal. Phycal has a research facility in St. Louis, and plans for pilot facility in Hawaii. There are about 25 positions at the company's Ohio location, and the workforce continues to grow.