Sharply defined time scales

Examples of applications are given in Table 1. The method is limited to materials that flow plastically at a reasonable time scale of minutes to hours and at temperatures significantly lower than their sharply defined melting points (so that they can still be treated as solids). This includes mainly metals. 

Oscillations of the type described by Eqs. (10.4a-10.5) usually occur for, at most, only a short period on the picosecond or sub-picosecond time scale. There are several reasons for this. First, these expressions pertain to a single system with sharply defined energies. In most experimental measurements of resonance energy... 

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