98/01822 Status and issues in development of the Dnieper brown coal basin : Gumenik, I. L. et al. Gorn. Zh., 1996, (7–8), 37–39. (In Russian)
- Publisher
- Elsevier Science
- Year
- 1998
- Weight
- 208 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0140-6701
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✦ Synopsis
Discusses the reduction of the representation of IR spectra from coal samples by osculating polynomials of degree nine. The reduced representation contains polynomial coefficients of order O-4. Mathematical models of the original spectra are obtained by linear combination of the coefficients. These compressed models are statistically correlated to coal properties, namely, volatile matter, fixed carbon, ash content, heating value, hydrogen, carbon, sulfur, nitrogen, and maximum vitrinite reflectance and the results are compared with those previously obtained from second derivatives of the same spectra. The use of compressed data, while giving slightly better correlations for some of the properties, has the advantage of requiring less computational time.