In this work we investigate, compare and discuss UV and violet emission behaviour under pulsed, multi-photon orange and infra-red excitation in Nd3+ doped ZBLAN samples of different concentrations ranging from 0.3 to 5 mol.%. Supported by the obtained spectroscopic results, orange and IR excitation schemes were proposed and verified by time dependent rate equation model, which has been employed to confirm the nature of observed processes. Proposed model returns fitting results which qualitatively reflect the experimentally obtained Ugg Outlet Uk Sale fluorescence decays.
Twelve experiments were carried out in order to establish the functional associations of the sound pressure level, the frequency, Cheapest Uk Ugg Boots
time variations and spectral properties of sound with the latency time of audiogenic seizure (AGS) in rats. The signal to silence time ratio, in addition to the sound pressure level and the frequency was found to be an important factor. As a retraction to the previous paper (Björk E.A. and Tacke U., 1985, Hearing Res. 17, 95–98), the harmonic spectra were shown not to be more effective than the tone and the noise in inducing AGS.