Results 31 to 40 of about 6,219,327 (281)

Experimental design of photo-Fenton process decolorization of Reactive Red 120 by using mathematical statistics models [PDF]

open access: yesJournal of Graphic Engineering and Design, 2018
A statistical design of experiments was used to evaluate the potential use of clay catalyst (CuOFeB) during photo-Fenton process in which the concentration of hydrogen peroxide (H2O2), catalyst loading and pH values were selected as effective ...
Gordana Pucar Milidrag   +6 more
doaj   +1 more source

Colour Vision: Adapting to change [PDF]

open access: yesCurrent Biology, 1995
The colours we see reflect not only the light wavelengths presently being detected, but also those already received. To understand colour constancy therefore requires an understanding of adaptation in the visual system.
openaire   +2 more sources

Color change, phenotypic plasticity, and camouflage

open access: yesFrontiers in Ecology and Evolution, 2016
The ability to change appearance over a range of timescales is widespread in nature, existing in many invertebrate and vertebrate groups. This can include color change occurring in seconds, minutes, and hours, to longer term changes associated with ...
Martin eStevens
doaj   +1 more source

Colour change and kinetics of winter jujube slices during pulsed air-jet impingement drying

open access: yesCzech Journal of Food Sciences, 2018
The colour and the characteristics of colour change curves of winter jujube slices at different temperatures (55, 60, 65, 70, and 75°C) by the single factor experiment during pulsed air-jet impingement drying were stidied. The experimental data of colour
Yuxue CAO   +6 more
doaj   +1 more source

Colour harmony in the context of teaching

open access: yes, 2023
This paper addresses the problem of normative aesthetics and how it can play out in the teaching of colour in the creative field of art and design. A brief historical overview of a representative selection of different theories of colour harmony is given,
Arnkil, Harald, Schwarz, Andreas
core   +1 more source

Colour & Trend Forecasting in a Sustainable World [PDF]

open access: yes
This paper challenges the underlying philosophy of the colour and trend forecasting sector and the process currently used to market and promote trends that are contributing to excessive mass consumer consumption and the mass production of devaluing ...
Cassidy, Tracy Diane
core   +3 more sources

Influence of Astaxanthin and β-carotene on Kissing Gourami (Helostoma temminckii) Colouring

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
This study evaluated the role of carotenoids in regulate the skin color of Kissing Gourami (Helostoma temminckii). 40 fishes were randomly selected into 2 groups (20 each group). Control group was fed with standard flake feed. Astaxanthin (12mg/kg) and β-
Ján Kopecký   +3 more
doaj  

Synthesis and characterization of chromogenic fluoran compounds containing 4-ketoquinazolinone moieties [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
Chromogenic fluoran compounds containing 4-ketoquinazolinone were synthesized by reacting 2-(4-diethylamino-2-hydroxybenzoyl)benzoic acid with various substituted 4-ketoquinazolinones in the presence of sulfuric acid.
RANJAN G. PATEL   +2 more
doaj   +3 more sources

Effects of thermal modification on the water resistance and colour stability of wood species from Bosnia and Herzegovina

open access: yesLes
This study investigates the impact of thermal modification on the water resistance and colour stability of Indigenous wood species from Bosnia and Herzegovina, including Norway spruce (Picea abies), silver fir (Abies alba), oak (Quercus sp.), and walnut
Redžo Hasanagić   +3 more
doaj   +1 more source

Effect of Artificial Ageing on Adhesive Bonds from Heat Treated Spruce

open access: yesDrvna Industrija, 2021
The influence of artificial ageing on bonded heat-treated spruce lamellas was investigated. Heat-treated spruce lamellas with different degrees of thermal modification were bonded with PVAc and MUF and then exposed to 500 artificial weathering cycles ...
Mirko Kariz   +2 more
doaj   +1 more source

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