Now showing items 1-10 of 2720
Relief grating induced by photo-expansion in Ga-Ge-S and Ga-Ge-As-S glasses
(Natl Inst Optoelectronics, 2002-06-01)
We report the fabrication of relief diffraction gratings recorded on a surface of photosensitive Ga10Ge25S65 and Ga5Ge25As5S65 glasses by means of interference of two UV laser beams at 351 nm. The diffraction efficiency ...
Further characterization of relief dynamics in the conditioning and generalization of avoidance: Effects of distress tolerance and intolerance of uncertainty.
Avoidance behaviors are central to the anxiety disorders and implicated in many other forms of psychopathology, but the reinforcing mechanism of avoidance remains largely elusive. It has been suggested that subjective ...
Effects of cryogenic and stress relief treatments on temper carbide precipitation in AISI D2 tool steel
The effects of cryogenic and stress relief treatments on temper carbide precipitation in the cold work tool steel AISI D2 were studied. For the cryogenic treatment the temperature was −196°C and the holding time was 2, 24 ...
Meteorological Characterization of Large Daily Flows in a High-Relief Ungauged Basin Using Principal Component Analysis
(American Society of Civil Engineers (ASCE), 2019)
Decision making and hydrologic design for coping with floods are complex tasks in poorly gauged high-relief basins. The response of such basins is driven by precipitation and temperature, which controls the freezing level ...
Analyses of surface relief gratings inscription in epoxy-azo linear and crosslinked polymers
(John Wiley & Sons Inc, 2017-07-31)
This work evaluates the inscription of surface relief gratings (SRG) in a series of epoxy-azo prepolymers and networks, both based on the same azo chromophore. Variables such as matrix structure (thermoplastic/thermoset), ...
Mechanisms of surface-relief gratings formation in layer-by-layer films from azodyes
Surface-relief gratings are photoinscribed on ionically adsorbed layer-by-layer (LBL) films of an azodye, Brilliant Yellow (BY), which was layered alternately with a polyelectrolyte. Photoinscription is performed by impinging ...
Relief influence on tree species richness in secondary forest fragments of Atlantic Forest, SE, Brazil
(SOC BOTANICA BRASIL, 2008)
(Relief influence on tree species richness in secondary forest fragments of Atlantic Forest, SE, Brazil). The aim of this work was to explore the relationship between tree species richness and morphological characteristics ...
Relief influence on the spatial distribution of the Atlantic Forest cover on the Ibiúna Plateau, SP
Several studies suggest that, on a large scale, relief conditions influence the Atlantic Forest cover. The aim of this work was to explore these relationships on a local scale, in Caucaia do Alto, on the Ibiúna Plateau. ...
Reactive Control for Transmission Overload Relief Based on Sensitivity Analysis and Cooperative Game Theory
(Institute of Electrical and Electronics Engineers (IEEE), 2012-08-01)
Under overload conditions, corrective actions must be carried out in a short time in order to avoid blackouts. However, the control of system facilities in the new market environment has changed the standard overload relief ...