This paper describes the influence of tailor-made polyesters on solvent free radiation-curable cycloaliphatic epoxide systems. Hydroxyfunctional polyesters are incorporated via a chain transfer mechanism and thus are appropriate to optimize the mechanical properties of cationic polymerizable systems up to a certain degree. About 30 different polyesters were synthesized, evaluated, modified, and again examined. Special attention is put on the adhesion to metal substrates, on flexibility and reactivity. Recommendations are given for the choice of photoinitiators and the use of supplementary compounds in respect to both adhesion and reaction speed. The paper further discusses the combination of a radiation-curable Basket Blazer Femme Grise primer with conventional cured polyurethane based top coats.
In this paper, we present a reversible data hiding (RDH) algorithm for color image. The traditional RDH technique regarding color image embeds data into each color channel independently. Considering that the color channels correlate with each other, we propose a RDH algorithm based on prediction-error expansion that can enhance the prediction accuracy in one color channel through exploiting the Chaussure Nike Blazer Basse edge information from another channel. By doing so, the entropy of the prediction-error is decreased statistically, and consequently, the algorithm efficiency is increased in terms of data hiding rate versus embedding distortion. Extensive experimental results demonstrate Blazer Nike Homme Solde that the proposed algorithm outperforms the traditional RDH methods independently embedding data into each channel.
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