Investigation of irradiated 1H-Benzo[b] pyrrole by ESR, thermal methods and learning algorithm

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dc.contributor.authorAlgül, Gülay
dc.contributor.authorCeylan, Yusuf
dc.contributor.authorUsta, Keziban
dc.contributor.authorAydoğmuş, Hacer Yumurtacı
dc.contributor.authorUsta, Ayhan
dc.contributor.authorAşık, Biray
dc.date.accessioned2021-02-19T21:16:13Z
dc.date.available2021-02-19T21:16:13Z
dc.date.issued2016
dc.departmentALKÜ
dc.description.abstract1H-Benzo[ b] pyrrole samples were irradiated in the air with gamma source at 0.969 kGy per hour at room temperature for 24, 48 and 72 h. After irradiation, electron spin resonance, thermogravimetry analysis (TGA) and differential thermal analysis (DTA) measurements were immediately carried out on the irradiated and unirradiated samples. The ESR measurements were performed between 320 and 400 K. ESR spectra were recorded from the samples irradiated for 48 and 72 h. The obtained spectra were observed to be dependent on temperature. Two radical-type centres were detected on the sample. Detected radiation-induced radicals were attributed to R-+center dot NH and R=(center dot)CC2H2. The g-values and hyperfine constants were calculated by means of the experimental spectra. It was also determined from TGA spectrum that both the unirradiated and irradiated samples were decomposed at one step with the rising temperature. Moreover, a theoretical study was presented. Success of the machine learning methods was tested. It was found that bagging techniques, which are widely used in the machine learning literature, could optimise prediction accuracy noticeably.
dc.description.sponsorshipAlanya Alaaddin Keykubat University; Gebze Technical UniversityGebze Teknik University; Scientific Research Projects Coordination Center of Selcuk University, Antalya, Kocaeli, Konya/Turkey
dc.description.sponsorshipThis study was partially supported by Alanya Alaaddin Keykubat, and Gebze Technical Universities, and the Scientific Research Projects Coordination Center of Selcuk University, Antalya, Kocaeli, Konya/Turkey.
dc.identifier.doi10.1080/10420150.2016.1203925
dc.identifier.endpage460en_US
dc.identifier.issn1042-0150
dc.identifier.issn1029-4953
dc.identifier.issue5-6en_US
dc.identifier.scopusqualityQ3
dc.identifier.startpage451en_US
dc.identifier.urihttps://doi.org/10.1080/10420150.2016.1203925
dc.identifier.urihttps://hdl.handle.net/20.500.12868/322
dc.identifier.volume171en_US
dc.identifier.wosWOS:000382221100008
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofRadiation Effects And Defects In Solids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectESR spectroscopy
dc.subjectfree radicals
dc.subject1H-Benzo[b] pyrrole
dc.subjectTGA/DTA
dc.subjectlearning algorithm
dc.titleInvestigation of irradiated 1H-Benzo[b] pyrrole by ESR, thermal methods and learning algorithm
dc.typeArticle

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