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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47612/0514-7506-2023-90-2-174-179</article-id><article-id custom-type="elpub" pub-id-type="custom">zhps-1261</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЛАЗЕРНАЯ СПЕКТРОСКОПИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LASER SPECTROSCOPY</subject></subj-group></article-categories><title-group><article-title>Многопараметрическая калибровка состава низколегированных сталей по предобработанным эмиссионным спектрам низкого разрешения с выбором спектральных переменных</article-title><trans-title-group xml:lang="en"><trans-title>Multivariate Calibration of the Composition of Low-Alloy Steels Using Pre-Processed Low-Resolution Emission Spectra with Spectral Variables Selection</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бельков</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belkov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кацалап</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Catsalap</surname><given-names>K. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Королько</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolko</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">d.korolko@ifanbel.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ходасевич</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khodasevich</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики НАН Беларуси</institution></aff><aff xml:lang="en"><institution>B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>23</day><month>03</month><year>2023</year></pub-date><volume>90</volume><issue>2</issue><fpage>174</fpage><lpage>179</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бельков М.В., Кацалап К.Ю., Королько Д.А., Ходасевич М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Бельков М.В., Кацалап К.Ю., Королько Д.А., Ходасевич М.А.</copyright-holder><copyright-holder xml:lang="en">Belkov M.V., Catsalap K.Y., Korolko D.A., Khodasevich M.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zhps.ejournal.by/jour/article/view/1261">https://zhps.ejournal.by/jour/article/view/1261</self-uri><abstract><p>По эмиссионным спектрам низкого разрешения лазерно-искровой плазмы эталонных образцов низколегированных сталей осуществлена калибровка концентраций C, Mn, Si, Cr, Ni и Cu. На основе предварительной обработки данных в виде нормировки спектров на длине волны эмиссионной линии Fe II 252.0609 нм и вычета базовой линии, а также выбора спектральных переменных оригинальным методом поиска комбинации движущихся окон для метода частичных наименьших квадратов построены многопараметрические калибровочные модели для указанных элементов со следующими характеристиками: для C (в диапазоне концентраций до 0.7 %) среднеквадратичное и остаточное отклонения в проверочной выборке составили 0.04 % и 4.7, Mn (до 1.9 %) 0.02 % и 24.8, Si (до 0.9 %) 0.01 % и 12.9, Cr (до 1 %) 0.01 % и 21.8, Ni (до 0.7 %) 0.007 % и 23.3, Cu (до 0.5 %) 0.006 % и 23.2 соответственно. Модели являются количественными (остаточное отклонение &gt;3) для шести рассматриваемых элементов, включая C.</p></abstract><trans-abstract xml:lang="en"><p>Calibration of concentrations of C, Mn, Si, Cr, Ni, and Cu by the low-resolution laser induced breakdown spectroscopy is made in reference to low-alloy steels etalons. Data preprocessing in the form of spectrum normalization at Fe II 252.0609 nm emission line wavelength and baseline correction, as well as spectral variables selection with an original method of searching combination moving window for the partial least squares method made it possible to build multivariate calibration models for all considered elements with the following characteristics: for C (in the concentration range up to 0.7%) the value of root-meansquare error and residual predictive deviation is 0.04 % and 4.7, Mn (up to 1.9%) – 0.02 % and 24.8, Si (up to 0.9%) – 0.01 % and 12.9, Cr (up to 1%) – 0.01 % and 21.8, Ni (up to 0.7%)– 0.007 % and 23.3, Cu (up to 0.5%) – 0.006 % and 23.2, respectively. Models are quantitative (residual predictive deviation &gt; 3) for all six elements considered, including carbon.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лазерно-искровая эмиссионная спектроскопия</kwd><kwd>метод частичных наименьших квадратов</kwd><kwd>выбор спектральных переменных</kwd><kwd>низколегированные стали</kwd></kwd-group><kwd-group xml:lang="en"><kwd>laser induced breakdown spectroscopy</kwd><kwd>partial least squares</kwd><kwd>spectral variable selection</kwd><kwd>low-alloy steels</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Y. Wei, R. S. Varanasi, T. Schwarz, L. Gomell, H. Zhao, D. J. Larson, B. Sun, G. Liu, H. Chen, D. Raabe, B. Gault. Patterns, 2 (2021) 100192</mixed-citation><mixed-citation xml:lang="en">Y. Wei, R. S. Varanasi, T. Schwarz, L. Gomell, H. Zhao, D. J. Larson, B. Sun, G. Liu, H. Chen, D. Raabe, B. Gault. 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