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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">51134</article-id><article-id pub-id-type="edn">JWJLTJ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physics and Astronomy</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физика</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Specific Electrical Conductivity of Natural Syrian and Armenian Zeolites</article-title><trans-title-group xml:lang="ru"><trans-title>Удельная электрическая проводимость натуральных цеолитов из Армении (клиноптилолит) и Сирии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Soulayman</surname><given-names>S. Sh.</given-names></name><name xml:lang="ru"><surname>Сулейман</surname><given-names>С. Ш.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sahakyan</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Саакян</surname><given-names>А. А.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikogosyan</surname><given-names>S.</given-names></name><name xml:lang="ru"><surname>Никогосян</surname><given-names>С.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yunusova</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Юнусова</surname><given-names>С. А.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Higher Institute of Applied Sciences and Technology</institution></aff><aff><institution xml:lang="ru">Институт прикладных технологий</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Yerevan Physics Institute</institution></aff><aff><institution xml:lang="ru">Ереванский физический институт</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Peoples' Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2007-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2007</year></pub-date><issue>1-2</issue><issue-title xml:lang="en">NO12 (2007)</issue-title><issue-title xml:lang="ru">№12 (2007)</issue-title><fpage>147</fpage><lpage>154</lpage><history><date date-type="received" iso-8601-date="2026-07-08"><day>08</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2007, Soulayman S.S., Sahakyan A.A., Nikogosyan S., Yunusova S.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2007, Сулейман С.Ш., Саакян А.А., Никогосян С., Юнусова С.А.</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="en">Soulayman S.S., Sahakyan A.A., Nikogosyan S., Yunusova S.A.</copyright-holder><copyright-holder xml:lang="ru">Сулейман С.Ш., Саакян А.А., Никогосян С., Юнусова С.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/51134">https://journals.rudn.ru/miph/article/view/51134</self-uri><abstract xml:lang="en">The direct current (dc) conductivity of several natural Syrian and Armenian zeolitic samples is measured in order to understand the mechanism of electrical conductivity in these materials. The influence of the sample's water content on its electrical conductivity is studied in details. We find that with the increase of hydration time or, equivalently, the increase of water content in the sample, the electrical conductivity of the samples increases up to a definite moment at which the increase stops. This moment is characteristic of each sample and it corresponds to the saturation state which means the state where the hydration process is finished and that the sample has reached its equilibrium state corresponding to an air-dried sample. We compare our results with available experimental data of relatively other materials and find that they agree in general.</abstract><trans-abstract xml:lang="ru">В этой работе мы проводили измерения электрической проводимости ($\sigma$) натуральных цеолита Сирии и Армении в постоянном электрическом поле. Изучены влияния влажности на проводимость образцов. Для всех образцов проводились временные зависимости проводимости (в режиме гидратации) от частично обезвоженного состояния до воздушно-сухого состояния. Можно отметить следующие основные результаты: с ростом времени гидратации (т.\,е. с ростом содержания воды) наблюдается увеличение проводимости образцов, и через некоторое время она достигает насыщения, что означает конец процесса гидратации, образец переходит в равновесное состояние (воздушно-сухой образец).</trans-abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Freeman D. C. J., Stamires D. N. // The Journal of Chemical Physics. - Vol. 35. - 1961. - P. 799.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Simon U., Franke M. E. // Micropor. Mesopor. Mater. - Vol. 41. - 2000. - P. 1.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Sayed M. B. 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