Recently, Lean Production (Lean) has become a prevailing management concept in Sweden. However, previous research seems to show that the Lean concept and the impact of Lean vary considerably between organizations. This paper illustrates some key methodological issues that need to be considered...

A method for the numerical solution of the Hilbert transform integral to obtain the phase corresponding to a given amplitude spectrum is presented. The method, which is based on the assumption that the amplitude spectrum at high and low frequencies can be approximated by constant slopes, can be...