Place nuts in a 13 x 9 x 2-inch baking pan. Bake 5 minutes at 325 degrees. In a bowl, combine soy sauce, lemon juice and brown sugar. Stir until sugar is dissolved. Stir in oil, ginger, salt, garlic and onion powder. Add heated almonds. Toss to coat nuts. Return nuts to baking pan. Bake 10 minutes longer, turning once. Cool and store in an airtight container.