Effects of Oil Leaching on the Physicochemical Structure of Coal.

ACS Omega · 2025 · PMC12044474 · PMID 40321584

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an increasing trendno p-value reported

The fractal dimension D 2 shows a mean value of 3.4435, ranging from 2.9033 to 3.7869, with an increasing trend initially, followed by a sudden decrease in samples after 7 days of oil immersion.

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