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 is energy and geothermal energy is the heat contained within the earth. Geological, geophysical and hydrological processes in favourable environments form a geothermal system. The underground circulating water in aquifers acquires heat from the earth's thermal gradient of around 30Â°C/km.