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Nancy Heimann and Bob Heimann pose in their lab

September 26, 2012 | 6:00 a.m. CDT
Nancy Heimann, president of Enginuity Worldwide LLC, and Bob Heimann, corrosion engineer, pose for a portrait Tuesday morning in their laboratory. In the foreground are grass and corn stalks used to make pellets that could be used as alternate fuel for power plants.

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