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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Communications Technology and Electronics</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Communications Technology and Electronics</journal-title><trans-title-group xml:lang="ru"><trans-title>Радиотехника и электроника</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0033-8494</issn><issn publication-format="electronic">3034-5901</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">650462</article-id><article-id pub-id-type="doi">10.31857/S0033849423100169</article-id><article-id pub-id-type="edn">DNRINC</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>ПРИМЕНЕНИЕ РАДИОТЕХНИКИ И ЭЛЕКТРОНИКИ В БИОЛОГИИ И МЕДИЦИНЕ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Fiber refractometer for monitoring the vital activity of microalgae.</article-title><trans-title-group xml:lang="ru"><trans-title>Волоконный рефрактометр для мониторинга жизнедеятельности микроводорослей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sudas</surname><given-names>D. P.</given-names></name><name xml:lang="ru"><surname>Судас</surname><given-names>Д. П.</given-names></name></name-alternatives><email>Dmitriisudas@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuznetsov</surname><given-names>P. I.</given-names></name><name xml:lang="ru"><surname>Кузнецов</surname><given-names>П. И.</given-names></name></name-alternatives><email>Dmitriisudas@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Golant</surname><given-names>K. M.</given-names></name><name xml:lang="ru"><surname>Голант</surname><given-names>К. М.</given-names></name></name-alternatives><email>Dmitriisudas@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, Fryazino Branch</institution></aff><aff><institution xml:lang="ru">Фрязинский филиал Института радиотехники и электроники им. В.А. Котельникова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-10-01" publication-format="electronic"><day>01</day><month>10</month><year>2023</year></pub-date><volume>68</volume><issue>10</issue><fpage>1011</fpage><lpage>1014</lpage><history><date date-type="received" iso-8601-date="2025-01-31"><day>31</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Д.П. Судас, П.И. Кузнецов, К.М. Голант</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Д.П. Судас, П.И. Кузнецов, К.М. Голант</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Д.П. Судас, П.И. Кузнецов, К.М. Голант</copyright-holder><copyright-holder xml:lang="ru">Д.П. Судас, П.И. Кузнецов, К.М. Голант</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0033-8494/article/view/650462">https://innoscience.ru/0033-8494/article/view/650462</self-uri><abstract xml:lang="en"><p>The possibility of assessing the influence of external conditions, such as glucose content in solution and external lighting, on life activity has been shownblue-green algae with control mode real time. Using fabricated fiber sensors, the time dependence, lasting more than 40 hours, and changes in the refractive index of a suspension containing microalgae Chlorella Vulgaris during their life activity were studied.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45257552073520">Показана возможность оценки влияния внешних условий, таких как содержание глюкозы в растворе и внешнее освещение, на жизнедеятельность сине-зеленых водорослей с контролем в режиме реального времени. С помощью изготовленных волоконных сенсоров исследованы временная зависимость, длящаяся более 40 ч, и изменения показателя преломления суспензии, содержащей микроводоросли Chlorella Vulgaris, в процессе их жизнедеятельности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>external lighting</kwd><kwd>blue-green algae</kwd><kwd>life activity</kwd><kwd>microalgae Chlorella Vulgaris</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Socorro A.B., Corres J.M., Del Villar I. et al. // Sensors and Actuators B: Chemical. 2012. V. 174. P. 263.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Dandapat K., Tripathi S.M., Chinifooroshan Y. et al. // Opt. Lett. 2016. V. 41. № 18. P. 4198.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Ashkin A., Dziedzic J.M., Bjorkholm J.E. et al. // Opt. Lett. 1986. V. 11. № 5. 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