Energy content of biofuel Energy content of biofuel The Energy content of biofuel is a description of the potential energy contained in a given biofuel, measured per unit mass of that fuel, as specific energy, or per unit of volume of the fuel, as energy density. A biofuel is a fuel, produced from living organisms. Biofuels include bioethanol, an alcohol made by fermentation—often used as a gasoline additive, and biodiesel, which is usually used as a diesel additive. Specific energy is energy per unit mass, which is used to describe the energy content of a fuel, expressed in SI units as joule per kilogram
Work unit in China led to further difficulties for the "danwei" system as the state run enterprises were increasingly unable to compete. At the same time the role of the work unit has changed as China has moved from a socialist ideology to "Socialism with Chinese characteristics". By 2000 much of the work unit's power had been removed. In 2003, for example, it became possible to marry or divorce someone without needing authorization from one's work unit. Work unit A unit or danwei () is the name given to a place of employment in the People's Republic of China. While the term