Abstract
In this article, the application of the Ångström method in estimating the thermal diffusion parameter in an example of natural biological environment is described. The present study is based on measurements performed in forest soils. The main advantage of the suggested procedure is that it does not need the collection of samples of the soil for a later study in the laboratory. Collecting such data is typically very laborious and requires the preservation of the natural content and structure of all elements of the soil profile in the samples, such as organic components, soil parts, or rocks. The harmonic time runs necessary to implement the Ångström method were computed with the short-time Fourier transform. The obtained results, compared with reference values taken from literature, confirm the accuracy of the proposed methodology.
References
1. Sharma PR, Ali S, Katyiar VK. Transient heat transfer analysis on skin surface and inside biological tissue. Int J Appl Math Mech 2009;5:36–47.Search in Google Scholar
2. Ångström A. Neue Methode, das Warmeleitungsvermogen der Korper zu Bestimmen. Ann Phys Chem 1861;114: 513–30.Search in Google Scholar
3. Eagleson PS. Dynamic hydrology. Warsaw: PWN, 1978 [in Polish].Search in Google Scholar
4. Kędziora A. Basis on agrometeorology. Poznań: Państwowe Wydawnictwo Rolnicze i Leśne, 1999 [in Polish].Search in Google Scholar
5. Kowalik P. Preservation of soil environment. Warsaw: Wydawnictwo Naukowe PWN, 2001 [in Polish].Search in Google Scholar
6. Woś A. Meteorology for geographers. Warsaw: PWN, 2000 [in Polish].Search in Google Scholar
7. Kittel C. Introduction to solid state physics, 8th ed. New York: John Wiley & Sons, 2005.Search in Google Scholar
8. Bednarek A. Comparative studies on thermal relations in soils in selected forest complexes in Białowieża National Park. Fol Forest Pol A 1967;13:57–235 [in Polish].Search in Google Scholar
9. Mills AF. Heat transfer. Upper Saddle River, NJ: Prentice-Hall, 1999.Search in Google Scholar
10. Rohsenow WM, Hartnett JP, Cho YI. Handbook of heat transfer. New York: McGraw-Hill, 1998.Search in Google Scholar
11. Mitra SK. Digital signal processing, a computer-based approach. New York: McGraw-Hill, 1998.Search in Google Scholar
12. Korohoda P, Dąbrowski A. Wavelet-like decomposition stage with windowed filters defined for the discrete trigonometric transforms (DTTs). Elect Rev 2012;88:30–5.Search in Google Scholar
13. Sypka P. Analysis of daily periodic temperature variation of covering layer of soil below Istebna spruce stand. Proceedings of the Ninth Conference on Application of Mathematics in Biology and Medicine, Piwniczna, 2003:79–85.Search in Google Scholar
14. Tadeusiewicz R. Place and role of intelligent systems in computer science. Comput Methods Mater Sci 2010;10:193–206.Search in Google Scholar
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