Results 11 to 20 of about 80,551 (307)
A new understanding on the electrochemical coloration mechanism of titanium surface
Journal of Materials Research and TechnologyElectrochemical coloration technology has been extensively studied for many years due to its effectiveness in enhancing the aesthetics, corrosion resistance, and biocompatibility of Ti materials.
Tengfei Yu +3 more
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Journal of Materials Research and TechnologyThis study explores the microstructure and coloration mechanism of high-saturation structural colors in ultra-thin oxide films formed on TC11 aerospace titanium alloy near permissible engineering temperatures.
Xiangyu Gao +3 more
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Mineralogical Characteristics and Coloration Mechanism of Yellow-Green Alunite Jade
Yankuang ceshi, 2020 BACKGROUND As a new kind of jade, yellow-green alunite jade is difficult to positively identify and evaluate due to the lack of research. Yellow-green alunite jade is a new type of jade that has appeared on the market in recent years.
SONG Yan-jun +5 more
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Crystals, 2023 Fluorite has been attracting the attention of gemstone mineralogists because of its rich color and excellent fluorescence properties. This paper studied fluorite with three color types (blue, green, and white) and five blue-purple fluorites with an ...
Yang Liu +5 more
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Pattern forming mechanisms of color vision
Network Neuroscience, 2023 Abstract While our understanding of the way single neurons process chromatic stimuli in the early visual pathway has advanced significantly in recent years, we do not yet know how these cells interact to form stable representations of hue. Drawing on physiological studies, we offer a dynamical model of how the primary visual cortex tunes
Zily Burstein +3 more
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Effect of Reduction Annealing on the Coloration Mechanism of Yellow Sapphire with High Iron Content
Crystals, 2022 The color of yellow sapphire from Africa characterized by high iron content and low levels of other transition metal elements was changed from yellow to grayish-blue after high-temperature reduction annealing.
Xiao Wu +4 more
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Ionizing radiation and melanism in Chornobyl tree frogs
Evolutionary Applications, 2022 Human actions are altering ecosystems worldwide. Among human‐released pollutants, ionizing radiation arises as a rare but potentially devastating threat to natural systems.
Pablo Burraco, Germán Orizaola
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Relationship between the Coloration Mechanism and Gemological Properties of Purple Scapolite
Crystals, 2023 Purple scapolite is a precious gemstone. In this paper, we compared the crystal structure and spectral characteristics of purple scapolite before and after heat treatment with conventional gemological tests, EPMA, XRF, LA-ICP-MS, infrared spectroscopy ...
Yinghua Rao +3 more
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New Insights into Coloration Mechanism in Violet-Red Pyrope-Almandine
Crystals, 2022 The most common type of garnet is pyrope-almandine, whose color varies from red to violet. In this study, 36 faceted gem-quality samples are used for electron microprobe, infrared spectrum, and UV-Visible spectrum test to find the coloration mechanism ...
Puyue Yang, Ying Guo
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Extreme offspring ornamentation in American coots is favored by selection within families, not benefits to conspecific brood parasites [PDF]
, 2019 Offspring ornamentation typically occurs in taxa with parental care, suggesting that selection arising from social interactions between parents and offspring may underlie signal evolution.
Lyon, Bruce E., Shizuka, Daizaburo
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