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		<identifier>oai:zbc.uz.zgora.pl:47138</identifier>
	    <datestamp>2023-07-06T08:42:31Z</datestamp>
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<dc:title xml:lang="pl"><![CDATA[Permeability, tortuosity, and attenuation of waves in porous materials = Dyfuzyjność, krętność i tłumienie fal w materiałach porowatych]]></dc:title>
<dc:creator><![CDATA[Wilmański, Krzysztof (1940-2012)]]></dc:creator>
<dc:subject xml:lang="pl"><![CDATA[ośrodki porowate]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[dyfuzja]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[krętność]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[przepuszczalność]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[fale akustyczne]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[porous media]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[diffusion]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[permeability]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[tortuosity]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[acoustic waves]]></dc:subject>
<dc:description xml:lang="pl"><![CDATA[The paper contains a consistent presentation of the construction of a linear poroelastic model and its applications in the theory of acoustic waves. The main purpose of this presentation is the discussion of material parameters describing the diffusion. This concerns particularly the permeability and tortuosity.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[In Section 2 we mention a few examples of porous systems in which diffusion processes play an important role. Section 3 contains a concise description of the two-component model describing saturated porous materials with diffusion. We point out the main features of such a system with the special emphasis of relative motion of components and changes of porosity.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[As a special case the governing equations of Biot's model are presented. In Section 4 we discuss the notions of permeability, hydraulic conductivity and tortuosity. In particular the notion of the tortuosity tensor is introduced.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Section 5 is the primer of the nuclear magnetic resonance method of experimental determination of permeability and tortuosity in various porous materials. Finally, Section 6 contains some issues concerning the propagation of monochromatic waves and, in particular, an influence of tortuosity on speeds and attenuation.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[tytuł dodatkowy: Prace z Inżynierii Lądowej i Środowiska]]></dc:description>
<dc:publisher><![CDATA[Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego]]></dc:publisher>
<dc:contributor><![CDATA[Kuczma, Mieczysław - red.]]></dc:contributor>
<dc:date><![CDATA[2010]]></dc:date>
<dc:type xml:lang="pl"><![CDATA[artykuł]]></dc:type>
<dc:format xml:lang="pl"><![CDATA[application/pdf]]></dc:format>
<dc:identifier><![CDATA[http://www.zbc.uz.zgora.pl/repozytorium/Content/47138/CEER5-01_K.Wilmanski.pdf]]></dc:identifier>
<dc:identifier><![CDATA[https://zbc.uz.zgora.pl/repozytorium/dlibra/publication/55257/edition/47138/content]]></dc:identifier>
<dc:identifier><![CDATA[oai:zbc.uz.zgora.pl:47138]]></dc:identifier>
<dc:source xml:lang="pl"><![CDATA[Civil and Environmental Engineering Reports (CEER), No 5]]></dc:source>
<dc:language><![CDATA[eng]]></dc:language>
<dc:relation><![CDATA[oai:zbc.uz.zgora.pl:publication:55257]]></dc:relation>
<dc:rights xml:lang="pl"><![CDATA[Biblioteka Uniwersytetu Zielonogórskiego]]></dc:rights>
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