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  1. 461

    Organic Glass-Forming Liquids and the Concept of Fragility by Alba-Simionesco, Christiane

    Published 2023-08-01
    “…Another phase diagram $T-d$ (d defining pore size) can be defined with a non-trivial pore size dependence of the glass transition, which is also strongly affected by surface interactions.…”
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    Gemological and Spectral Characteristics of Gem-Quality Blue Gahnite from Nigeria by Yifang Chen, Junhao Zheng, Mingmei Lu, Ziqi Liu, Zhengyu Zhou

    Published 2024-01-01
    “…The UV-vis absorption spectra located at 444 nm and 489 nm are the most obvious, which are caused by the d-d electron leap of TFe2+ (5E ⟶ 5T2), and the blue-gray tones of the samples are mainly caused by the spin-forbidden electronic transitions in TFe2+ and MFe2+ ↔ MFe3+; the weak absorption peak at 609 nm was determined to be associated with Co2+ by derivative spectra.…”
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