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dc.contributor.authorLetsholathebe, Douglas
dc.contributor.authorMphale, Kgakgamatso
dc.date.accessioned2016-11-01T13:08:08Z
dc.date.available2016-11-01T13:08:08Z
dc.date.issued2015
dc.identifier.citationLetsholathebe, D. & Mphale, K. (2015) Absorption of Microwaves in Low Intensity Eucalyptus Litter Fire, Journal of Electromagnetic Analysis and Applications, Vol. 7, No. 8, pp. 217-224en_US
dc.identifier.issn1942-0730 (Print)
dc.identifier.issn1942-0749 (Online)
dc.identifier.urihttp://hdl.handle.net/10311/1541
dc.descriptionSymbols on the abstract may not appear as in the original articleen_US
dc.description.abstractA fuel bed was constructed where various vegetation species could be used as combustion fuel. The fuel bed was equipped with a thermocouple to measure fire temperature and a two-port automatic network analyser to measure microwave scattering parameters in flame medium. The parameters are then used to determine microwave propagation characteristics in fire. The measurements have implications on radio wave communication during wildfire suppression and in remote sensing. The attenuation data also provide an estimation of vegetation fire ionisation and conductivity. Eucalyptus litter fire with a maximum flame temperature of 976 K was set on the fuel bed and X-band microwaves (7.00 - 9.50 GHz) were caused to propagate through the flame. Attenuation of 0.35 - 0.90 dB was measured for microwaves in the frequency range. For the low intensity fire, conductivity was measured to range from 0.00021 - 0.00055 mho/m and electron density was to be the range of 1.83 - 2.24 × 1015 m-3.en_US
dc.language.isoenen_US
dc.publisherScientific Research Publishing Inc., http://www.scirp.orgen_US
dc.subjectWildfireen_US
dc.subjectmicrowave attenuationen_US
dc.subjectweakly ionised gasen_US
dc.subjectremote sensingen_US
dc.subjectelectric conductivityen_US
dc.titleAbsorption of Microwaves in Low Intensity Eucalyptus Litter Fireen_US
dc.typePublished Articleen_US
dc.linkhttp://www.scirp.org/journal/PaperInformation.aspx?PaperID=59183en_US


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