FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2013471731> ?p ?o ?g. }

• W2013471731 endingPage "376" @default.
• W2013471731 startingPage "372" @default.
• W2013471731 abstract "Paramagnetic centers in two- and three-component coal blends carbonized at 1000 °C were studied by X-band (9.3 GHz) electron paramagnetic resonance (EPR) technique. The blends were prepared from three different Polish coals with carbon contents [wt.%]: 88.66, 86.21, and 82.67, respectively. The aim of this work was to compare EPR parameters and concentrations of paramagnetic centers in the initial and carbonized coal samples. Furthermore the spin–spin and spin–lattice interactions were characterized. EPR spectra were measured with magnetic modulation 100 kHz and microwave power 0.7 mW. Amplitudes and linewidths of EPR spectra were obtained. g-Factors were calculated from resonance condition. Concentrations of paramagnetic centers in the samples were determined. Influence of microwave power in the range 0.7–70 mW on EPR spectra was analyzed. All the studied samples revealed paramagnetism. Unpaired electrons are localized in the same atoms, because similar g-values in the range 2.0035–2.0038 were obtained for all the original samples. The EPR parameters of coal blends were additive in comparison with the parent coals. EPR spectra strongly changed after carbonization of the coal samples. Narrower EPR lines were measured for the original coal samples than for carbonized ones. We detected lower concentrations of paramagnetic centers in carbonized three-component coal blends than in two-component carbonized blends. EPR lines of the studied carbonized blends were not saturated at the microwave power used, which suggests fast spin–lattice relaxation processes in the samples. EPR examination proved chemical interactions between coal constituents during carbonization of coal blends." @default.
• W2013471731 created "2016-06-24" @default.
• W2013471731 creator A5029191522 @default.
• W2013471731 creator A5038207564 @default.
• W2013471731 creator A5073226975 @default.
• W2013471731 creator A5074359199 @default.
• W2013471731 creator A5074713011 @default.
• W2013471731 date "2009-01-01" @default.
• W2013471731 modified "2023-10-17" @default.
• W2013471731 title "Application of electron paramagnetic resonance spectroscopy to examination of carbonized coal blends" @default.
• W2013471731 cites W1963761304 @default.
• W2013471731 cites W1968647268 @default.
• W2013471731 cites W1983509935 @default.
• W2013471731 cites W1984840244 @default.
• W2013471731 cites W1985653879 @default.
• W2013471731 cites W1994204910 @default.
• W2013471731 cites W2022954521 @default.
• W2013471731 cites W2040235263 @default.
• W2013471731 cites W2042236029 @default.
• W2013471731 cites W2047936615 @default.
• W2013471731 cites W2053434514 @default.
• W2013471731 cites W2056496489 @default.
• W2013471731 cites W2062938829 @default.
• W2013471731 cites W2078750956 @default.
• W2013471731 cites W2080691581 @default.
• W2013471731 cites W2084494680 @default.
• W2013471731 cites W2086648056 @default.
• W2013471731 cites W2086952751 @default.
• W2013471731 cites W2089132667 @default.
• W2013471731 cites W2093844295 @default.
• W2013471731 cites W2094183089 @default.
• W2013471731 cites W2100151920 @default.
• W2013471731 cites W2111999412 @default.
• W2013471731 doi "https://doi.org/10.1016/j.coal.2008.07.017" @default.
• W2013471731 hasPublicationYear "2009" @default.
• W2013471731 type Work @default.
• W2013471731 sameAs 2013471731 @default.
• W2013471731 citedByCount "14" @default.
• W2013471731 countsByYear W20134717312012 @default.
• W2013471731 countsByYear W20134717312013 @default.
• W2013471731 countsByYear W20134717312014 @default.
• W2013471731 countsByYear W20134717312015 @default.
• W2013471731 countsByYear W20134717312016 @default.
• W2013471731 countsByYear W20134717312017 @default.
• W2013471731 countsByYear W20134717312019 @default.
• W2013471731 crossrefType "journal-article" @default.
• W2013471731 hasAuthorship W2013471731A5029191522 @default.
• W2013471731 hasAuthorship W2013471731A5038207564 @default.
• W2013471731 hasAuthorship W2013471731A5073226975 @default.
• W2013471731 hasAuthorship W2013471731A5074359199 @default.
• W2013471731 hasAuthorship W2013471731A5074713011 @default.
• W2013471731 hasConcept C113196181 @default.
• W2013471731 hasConcept C121332964 @default.
• W2013471731 hasConcept C124712363 @default.
• W2013471731 hasConcept C126838900 @default.
• W2013471731 hasConcept C1276947 @default.
• W2013471731 hasConcept C143409427 @default.
• W2013471731 hasConcept C154877778 @default.
• W2013471731 hasConcept C159985019 @default.
• W2013471731 hasConcept C178790620 @default.
• W2013471731 hasConcept C185592680 @default.
• W2013471731 hasConcept C187961010 @default.
• W2013471731 hasConcept C192562407 @default.
• W2013471731 hasConcept C193812863 @default.
• W2013471731 hasConcept C26771246 @default.
• W2013471731 hasConcept C26873012 @default.
• W2013471731 hasConcept C44838205 @default.
• W2013471731 hasConcept C46141821 @default.
• W2013471731 hasConcept C4839761 @default.
• W2013471731 hasConcept C518851703 @default.
• W2013471731 hasConcept C62520636 @default.
• W2013471731 hasConcept C71924100 @default.
• W2013471731 hasConcept C83042744 @default.
• W2013471731 hasConceptScore W2013471731C113196181 @default.
• W2013471731 hasConceptScore W2013471731C121332964 @default.
• W2013471731 hasConceptScore W2013471731C124712363 @default.
• W2013471731 hasConceptScore W2013471731C126838900 @default.
• W2013471731 hasConceptScore W2013471731C1276947 @default.
• W2013471731 hasConceptScore W2013471731C143409427 @default.
• W2013471731 hasConceptScore W2013471731C154877778 @default.
• W2013471731 hasConceptScore W2013471731C159985019 @default.
• W2013471731 hasConceptScore W2013471731C178790620 @default.
• W2013471731 hasConceptScore W2013471731C185592680 @default.
• W2013471731 hasConceptScore W2013471731C187961010 @default.
• W2013471731 hasConceptScore W2013471731C192562407 @default.
• W2013471731 hasConceptScore W2013471731C193812863 @default.
• W2013471731 hasConceptScore W2013471731C26771246 @default.
• W2013471731 hasConceptScore W2013471731C26873012 @default.
• W2013471731 hasConceptScore W2013471731C44838205 @default.
• W2013471731 hasConceptScore W2013471731C46141821 @default.
• W2013471731 hasConceptScore W2013471731C4839761 @default.
• W2013471731 hasConceptScore W2013471731C518851703 @default.
• W2013471731 hasConceptScore W2013471731C62520636 @default.
• W2013471731 hasConceptScore W2013471731C71924100 @default.
• W2013471731 hasConceptScore W2013471731C83042744 @default.
• W2013471731 hasFunder F4320323573 @default.
• W2013471731 hasIssue "3-4" @default.
• W2013471731 hasLocation W20134717311 @default.

• next