In fact, some predict that by 2030, the amount of nitrogen fixed by human activities will exceed that fixed by microbial processes (Vitousek 1997). Increases in available nitrogen can alter ...

Beginning with an introduction to the primary production of magnesium, the book goes on to discuss physical metallurgy of magnesium and thermodynamic properties of magnesium alloys. Further chapters ...

Traditionally, copper metallurgy is not thought to have emerged until millennia later, during the Chalcolithic period. Thus far, the earliest evidence of smelting comes from the Anatolian site of ...

Exactly how each of these processes was discovered is lost in the mists of time, but it is likely that they were developed using observation and experiment in a similar way to that used by today's ...

Cannon (1932) described the capacity for an animal to regulate its internal environment as the product of a suite of physiological processes, called homeostasis. Homeostatic mechanisms are dynamic ...

Chemical engineering involves the production and manufacturing of products through chemical processes. This includes designing equipment, systems, and processes for refining raw materials and for ...

The Executive Order also mandates urgent action to eliminate regulatory barriers, streamline permitting processes, and strengthen the domestic supply of critical minerals essential for U.S.