Converting constant-volume package rooftop units to variable-volume operations can have a significant impact on energy consumption. Since their creation, package rooftop units (RTUs) have been ...

Not all intervals are created equal, even if the average wattage is kept similar. Making intervals that vary in intensity can make them really different from constant wattage intervals. Tough short ...

Constant Capital is the value invested in the means of production (MP) and thus embodied in them. Therefore, when Marx speaks of constant capital, he sometimes refers to the MP itself and sometimes to ...