Portable Document Format (PDF) is a file format used to present and exchange documents reliably, independent of software, hardware, or operating system. Invented by Adobe, PDF is now an open standard maintained by the International Organization for Standardization (ISO).
ACCELA HEAT is a trademark and brand of Sears Brands, LLC. Filed to USPTO On Wednesday, October 01, 2014, The ACCELA HEAT covers Heat-regulating software, sold as an integral component of ovens for the purpose of baking food without the need to preheat the oven. Search for other trademarks at Trademarkia.
Heat Heat is the total kinetic energy of all the molecules in an object. Although energy is typically measured in joules, a more common unit for heat is the calorie, which is defined as the amount of heat required to change the temperature of 1 gram of water by 1 Celsius degree. There is a conversion factor to relate joules to calories, but we won't worry about that here.