brain drain. brain drain. LINK / CITE ADD TO WORD LIST. noun. The definition of brain drain refers to a situation where all or the majority of intelligent, skilled or capable resources within a given field or geographic region leave the area because of various factors including lack of high paying jobs.
Alkylation is an important source for octane in gasoline. Source: Occupational Safety and Health Administration. Alkylation (al-kuh-ley-shun) is a secondary refinery unit operation that many refineries in the United States have because it adds high octane hydrocarbons to motor and aviation gasoline. High octane hydrocarbons are needed to help prevent autoignition of gasoline (knocking) in an engine and to meet recommended engine octane ratings.
How Does Chelation Work? helation comes from the Greek word claw, meaning to grab, and that's exactly what chelating agents do. Chelating agents like EDTA travel through the bloodstream grabbing on to minerals and metals, such as calcium, lead, mercury, cadmium, copper, aluminum and iron, binding them, removing them from the bloodstream, and delivering them to the kidneys, which excrete them in the urine.