_RL exf_inscal_aqh
& exf_inscal_aqh,
I exf_inscal_aqh,
I aqhperiod, exf_inscal_aqh, aqhconst,
& exf_inscal_aqh, exf_inscal_hs, exf_inscal_hl,
exf_inscal_aqh = 1. _d 0