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Impact shock origin of diamonds in ureilite meteorites
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance The origin of diamonds in ureilites is still a debated issue among the scientific community, with significant implications for the sizes of early Solar System bodies.
F. Nestola +16 more
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Thermal Damage in Diamonds: the Protective Effect of Titanium Coating [PDF]
Materials Research, 2015 Many of the applications of diamonds expose them to high temperatures and atmospheres containing oxygen. Under these circumstances two important phenomena responsible for the thermal damage of diamonds are: oxidation and graphitization.
Marcio Carneiro Garcia Rosa +2 more
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Selection of collector composition and temperature conditions for diamond foam separation [PDF]
Journal of Mining and Metallurgy. Section A: Mining, 2022 Quantitative and qualitative regularities of a collector low and high molecular weight fractions distribution between solid and liquid phases in foam separation process were determined with the use of extraction-spectrophotometrical technique.
Morozov V.V. +4 more
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Data & Knowledge Engineering, 2013 29 ...
Webb, Hazel, Lemire, Daniel, Kaser, Owen
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Witwatersrand composite paleoplacers
Известия высших учебных заведений: Геология и разведка, 2021 Background. The Witwatersrand gold province located in South Africa is the richest in the world. The Witwatersrand deposits are composite, where osmirids and diamonds are mined along with gold, silver and uranium.
V. A. Stepanov
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JOINT DIAMONDS AND LAVER DIAMONDS [PDF]
The Journal of Symbolic Logic, 2019 Abstract The concept of jointness for guessing principles, specifically ${\diamondsuit _\kappa }$ and various Laver diamonds, is introduced. A family of guessing sequences is joint if the elements of any given sequence of targets may be simultaneously guessed by the members of the family. While equivalent in the case of
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Yankuang ceshi, 2016 Natural diamonds commonly contain polymeric nitrogen and have complex growing textures, whereas synthetic diamonds do not contain nitrogen or do contain single nitrogen and have typical growing textures related to the synthetic process.
LAN Yan +7 more
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Criteries and prospects of diamonds of the Vitebsk granulite massif
Журнал Белорусского государственного университета: География, геология, 2021 The article describes the history of studying the diamond content of tectonic structures of the territory of Belarus. Based on the results of magnetometric, mineralogical, tectonic studies carried out by industrial geologists and scientists over the past
Victor S. Konishchev +1 more
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Advanced Photonics Research, 2023 Optical anticounterfeiting certifies the authenticity of goods using optical information coding units. A Raman tag with Raman peaks serving as copious optical information coding units is optimal for optical anticounterfeiting.
Yau Chuen Yiu, Zhiqin Chu
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