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Alan Davis

Researcher at Pennsylvania State University

Publications -  84
Citations -  3559

Alan Davis is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Coal & Vitrinite. The author has an hindex of 32, co-authored 84 publications receiving 3379 citations. Previous affiliations of Alan Davis include Case Western Reserve University.

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Concerning the Application of FT-IR to the Study of Coal: A Critical Assessment of Band Assignments and the Application of Spectral Analysis Programs

TL;DR: In this article, the problems associated with the application of FT-IR to the characterization of coal structure are critically discussed and the controversies concerning band assignments are considered and it is concluded that the strong 1600 cm−1 band can be assigned to an aromatic ring stretching mode that in most coals is intensity enhanced by the presence of phenolic groups.
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Further studies of coal oxidation

TL;DR: In this article, Fourier transform infrared spectroscopy (FT-i.r) was used to investigate the low-temperature oxidation of coal and the results were correlated to changes in the thermoplastic properties of the coal measured by a Gieseler plastometer.
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The influence of tectonic deformation on some geochemical properties of coals—a possible indicator of outburst potential

TL;DR: In this article, the authors show that deformed coal has a higher chloroform extract yield than equivalent coal which has not been tectonically disturbed, suggesting that tectonic deformation may modify the hydrocarbon generating potential of coals.
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Concerning the 1600 cm−1 region in the i.r. spectrum of coal

TL;DR: In this article, a high-resolution Fourier transform infrared spectrometer was used to provide additional support for the assignment of the 1600 cm−1 band to an aromatic stretching mode.
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Determination of chemical-structural changes in vitrinite accompanying luminescence alteration using C-NEXAFS analysis

TL;DR: In this article, carbon near edge X-ray absorption fine structure (C-NEXAFS) spectroscopy is used to monitor the gain and loss of organic functionality in ultra-thin sections of vitrinite following time incremental exposure to blue light (390-490 nm) irradiation in air.