This thesis attempts to retrace the conditions of birth of the diary as a literary genre. Through the historical transformations of its main characteristics such as the notions of time, individuality and discontinuity, we will further our analysis to the…

This study investigated friendship formations of two girls with Down Syndrome who were integrated into a unit of 34 ten and eleven-year-old girls at a residential summer camp. While acting as participant observer, in the role of co-counsellor, I recorded…

Silver halide sensitized gelatin (SHSG) is one of the most promising techniques for the fabrication of transmission holographic optical elements, achieving relatively high sensitivity of photographic material with the low scattering and high light stability of dichromated gelatin. In this…

We propose a two step method which enables us to obtain transmission Holographic Optical Elements of high diffraction efficiency as well as a good signal-to-noise relation. By means of a device using partially coherent light, a master Holographic Optical Element…

Equations are derived for determining third-order wavefront aberrations in the plane of the exit pupil from the known aberration in the plane of a holographic lens. Using the transformation equations of wavefront aberration when the plane of the exit pupil…

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Presented in this paper is a robust control scheme for
controlling systems with time delays. The scheme is based on the Smith
controller and the LQG/LTR (Linear Quadratic Gaussian/Loop Transfer
Recovery) methodology. The methodology is applicable to undenvater
vehicle systems…

Estudou-se a morfologia e a histologia do órgão reprodutivo de machos do predador Podisus nigrispinus (Dallas), alimentados com diferentes dietas (lagartas de Alabama argillacea (Hübner), larvas de Tenebrio molitor L., larvas de Musca domestica L. e dieta artificial). O órgão…

Based on the results of the coupled-wave theory the diffraction efficiency is calculated for thick phase transmission holographic gratings taking into account the chemical processing of the recording material. Three effects of processing are considered: variations in the average refractive…

The experimental results of diffraction efficiency as a function of the geometrical disposition of recording beams in bleached silver halide transmission thick-holographic gratings are presented. Two variables have been used to relate these results with certain geometric parameters. These variables…