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The empirical dielectric decay function ϕ(t)= exp –(t/τ0)β, 0 0, but significant corrections may have to be applied for β >0.5 and log ωτ0 < 0.
Dielectric and viscoelastic measurements have been made on dilute solutions of poly(butylisocyanate). The measurements confirm that the molecules are predominantly rod-like in hydrodynamic behaviour.… (More)
The critically branched state of matter (close to a gel point) is further explored theoretically and experimentally. Fluctuations and effects due to cutting the high molecular weight tail of the… (More)
Dielectric measurements between 10-5 and 10+6 Hz have been made on one commercial (B. F. Goodrich Estane 5702 Fl) polyurethane, and on polyethylene oxide and polypropylene oxide methylene bis phenyl… (More)
Tropidia curculigoides Lindl. A terrestrial orchid reported previously from Sikkim, Assam and Burma, has now been recorded from Golatappar Swamp forest, Dehra Dun.
Describes a mathematical representation of elastic wave propagation in a swept frequency acoustic resonator. Conditions are investigated for the resonance of the cavity in a normal mode of vibration… (More)