This study investigated the hygroscopicity and UV deterioration characteristics of 3 domestic 4 imported woods using natural oil, stain, varnish paints. In terms hygroscopicity, it was found that painted wood lower than unpainted wood, as number coatings increased, decreased. anti-absorption, oil-based chemical paints showed higher resistance water-based paints, oils results comparable to As fo...

OBJECTIVES Epoxy adhesives contain organic solvents and are widely used in industry. The hazardous effects of epoxy adhesives remain unclear. The objective of this study was to investigate the risk of hearing loss among workers exposed to epoxy adhesives and noise. DESIGN Cross-sectional study. METHODS For this cross-sectional study, we recruited 182 stone workers who were exposed to both e...

Irradiation of terminal aromatic γ,δ-epoxy ketones with a 450 W UV lamp led to Norrish type II cyclization/semi-pinacol rearrangement cascade reaction which formed the benzocyclobutanones containing a full-carbon quaternary center, whereas irradiation of substituted aromatic γ,δ-epoxy ketones led to the indanones through a photochemical epoxy rearrangement and 1,5-biradicals cyclization tandem ...

The preparation of some ring A and B epoxy steroids derived from testosterone, pregnenolone and epiandrosterone using m-chloroperbenzoic acid is described. The biotransformation of the epoxy products by the fungus Mucor plumbeus are performed. The introduction of the epoxy group into the steroids moiety has affected the biotransformation results and gave only hydrolyzed products.

(3Z,6Z,9S,10R)-9,10-Epoxy-3,6-henicosadiene (1) and (3Z,6Z,9S,10R)-9,10-epoxy-1,3,6-henicosatriene (5), pheromone components of the female fall webworm moth (Hyphantria cunea Drury), were synthesized by starting from (2S,3R)-2,3-epoxy-4-t-butyldimethylsilyloxy-1-butanol (8). Epoxide 8 was prepared by employing lipase-catalyzed asymmetric acetylation of ( )-8 as the key optical resolution step.

In this paper we present an algorithm for a glass-painting filter. The filter inputs any arbitrary 2D image and converts it into its equivalent glass painted form. The initial image is processed through various nonphotorealistic rendering stages. The major steps involved in the process include – edge detection and refinement, conversion of image into painted form, changing the appearance of the...

A single point viscosity measurement has been proven meaningless in determining the rheological and application properties of a paint. Paints having the same “one point“ viscosity can hove different settling, sag, and leveling properties. These rheological differences are graphically depicted by means of viscosity profiles obtained through the use of low and high shear rate viscometers. A metho...