A very inefficient device will waste most of its input energy. The efficiency of a device is the proportion of the energy supplied that is transferred in useful ways. The efficiency can be ...

Wheelwright, S. C., and K. B. Clark. Revolutionizing Product Development: Quantum Leaps in Speed, Efficiency and Quality. New York: Free Press, 1992.

Investing in “efficiency” throughout one’s rental company can cause tremendous, sustained growth and profitability. (At times, only minor modifications are needed, so the investment in ...