Results 271 to 280 of about 229,927 (317)
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The American Journal of Geriatric Psychiatry, 2020
Seren, Griffiths, Stone, Abi
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Seren, Griffiths, Stone, Abi
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Nature, 1950
THE luminescence associated with the wetting of finely divided solids has already been reported1–3. With greatly improved arrangements for heating the solid, redistilling the wetting liquid and wetting the solid in the same vacuum, it has now been found that silica from various sources heated in vacuo to 700° C.
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THE luminescence associated with the wetting of finely divided solids has already been reported1–3. With greatly improved arrangements for heating the solid, redistilling the wetting liquid and wetting the solid in the same vacuum, it has now been found that silica from various sources heated in vacuo to 700° C.
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Visual Luminescence and Luminescence Imaging
2013Visual luminescence excited by UV light and luminescence imaging are discussed as simple and effective techniques for preliminary characterization of diamonds and as methods of recognition of HPHT-treated diamonds. Since all natural diamonds fluoresce under UV excitation, the visual luminescence technique is a common method applicable to diamonds of ...
Inga A. Dobrinets +2 more
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Luminescent polynuclear assemblies
Chemical Society Reviews, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Michael W, Cooke, Garry S, Hanan
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Thermostimulated Luminescence and Tunnel Luminescence
2001A very characteristic feature of XL of natural and synthetic diamonds is delayed light emission with time constants of tenths of minutes. This delayed luminescence results from TL and TSL. The contribution of TL in the delayed luminescence of synthetic diamonds is 90% (Vins 1988; Yelisseyev and Sobolev 1979b; Yelisseyev 1977; Vins and Yelisseyev 1989 ...
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Luminescence: The “Cold Glow” of Minerals
ElementsLuminescence is the eye-catching phenomenon of light emission by a mineral after some input of energy (the excitation). Although commonly used in Earth sciences only to produce images, much more can be extracted from this phenomenon. Luminescence is extremely sensitive to low levels of emitters (activators), which helps to reveal the geochemistry or ...
Nasdala, L., Fritsch, E.
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Luminescence anti‐counterfeiting: From elementary to advanced
Aggregate, 2021Hongyue Zhang, Jihong Yu
exaly