Results 51 to 60 of about 19,177 (205)

Revolutionizing Wastewater Treatment: Harnessing Metal–Organic Frameworks for Exceptional Photocatalytic Degradation of Azo-Type Dyes

open access: yesColorants, 2023
Due to the high stability of azo-type dyes, conventional treatment processes such as adsorption, flocculation, and activated sludge are not efficient for decolorizing wastewater effluents.
Jose Manuel Barrera-Andrade   +4 more
doaj   +1 more source

Solar patterning: The employment of fast and fugitive colorants via Anthotype, Cyanotype and other photographic techniques. [PDF]

open access: yes, 2016
This paper discusses on-going research into natural dyes, mineral dyes (Lake pigments or raised colours) and leuco-vat dyes (Inko and SolarFast) with the potential to create a sustainable method of patterning fabric that employs the light sensitivity and
Wells, Kate, Greger, Ness
core  

Enzymatic Formation of Colorants [PDF]

open access: yes, 2007
The aim of this research is to understand if colorants can be synthesized enzymatically, and if the formed products can be used in various applications.
Stephen, Rosary
core  

Bioactive Natural Pigments’ Extraction, Isolation, and Stability in Food Applications

open access: yesMolecules, 2023
Color in food has multiple effects on consumers, since this parameter is related to the quality of a product, its freshness, and even its nutrient content.
Adriana K. Molina   +4 more
doaj   +1 more source

Color Constancy with Derivative Colors

open access: yesCoRR, 2016
Information about the illuminant color is well contained in both achromatic regions and the specular components of highlight regions. In this paper, we propose a novel way to achieve color constancy by exploiting such clues. The key to our approach lies in the use of suitably extracted derivative colors, which are able to compute the illuminant color ...
Huan Lei, Guang Jiang, Long Quan
openaire   +3 more sources

Colour Stability of Heat and Cold Cure Acrylic Resins [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Introduction: To evaluate the colour stability of heat and cold cure acrylic resins under simulated oral conditions with different colorants.
Pavan Kumar Bohra   +4 more
doaj   +1 more source

Color terms and color concepts [PDF]

open access: yesJournal of Experimental Child Psychology, 2006
In their lead articles, both Kowalski and Zimiles (2006) and O'Hanlon and Roberson (2006) declare a general relation between color term knowledge and the ability to conceptually represent color. Kowalski and Zimiles, in particular, argue for a priority for the conceptual representation in color term acquisition.
openaire   +3 more sources

Les colorants injectables ou plus de 70 ans d'usage thérapeutique parentéral des colorants

open access: yes, 2005
Injectable dyes : more than 70 years of therapeutic usage of dyes. Synthetic dyes were first discovered at the end of the XVIIIth century (picric acid by Woulfe in 1771) and during the first part of the XIXth century : rosolic acid (Runge, 1834 ...
Bonnemain, Bruno, Bruno Bonnemain
core   +1 more source

EFFICIENCY OF ULTRAFILTRATION CERAMIC MEMBRANES FOR TOXIC ELEMENTS REMOVAL FROM WASTEWATERS

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2010
The preparation and characterization of porous ceramics multilayer ultrafiltration membrane is described. The first step consisted to prepare high-quality macroporous support in Moroccan clay. The choice of this material is based on its natural abundance
S. Alami Younssi   +5 more
doaj  

Home - About - Disclaimer - Privacy