151. Characterization of electrochemical processes in metal-organic batteries by X-ray Raman spectroscopyAva Rajh, Iztok Arčon, Klemen Bučar, Matjaž Žitnik, Marko Petric, Alen Vižintin, Jan Bitenc, Urban Košir, Robert Dominko, Hlynur Gretarsson, Martin Sundermann, Matjaž Kavčič, 2022, original scientific article Abstract: X-ray Raman spectroscopy (XRS) is an emerging
spectroscopic technique that utilizes inelastic scattering of hard Xrays
to study X-ray absorption edges of low Z elements in bulk
material. It was used to identify and quantify the amount of
carbonyl bonds in a cathode sample, in order to track the redox
reaction inside metal−organic batteries during the charge/
discharge cycle. XRS was used to record the oxygen K-edge
absorption spectra of organic polymer cathodes from different
multivalent metal−organic batteries. The amount of carbonyl bond
in each sample was determined by modeling the oxygen K-edge
XRS spectra with the linear combination of two reference compounds that mimicked the fully charged and the fully discharged
phases of the battery. To interpret experimental XRS spectra, theoretical calculations of oxygen K-edge absorption spectra based on
density functional theory were performed. Overall, a good agreement between the amount of carbonyl bond present during different
stages of battery cycle, calculated from linear combination of standards, and the amount obtained from electrochemical
characterization based on measured capacity was achieved. The electrochemical mechanism in all studied batteries was confirmed to
be a reduction of double carbonyl bond and the intermediate anion was identified with the help of theoretical calculations. X-ray
Raman spectroscopy of the oxygen K-edge was shown to be a viable characterization technique for accurate tracking of the redox
reaction inside metal−organic batteries.
Keywords: X-ray Raman spectroscopy, meta-organic batteries, oxygen K-edge XANES, electrochemical processes
Published in RUNG: 24.03.2022; Views: 1715; Downloads: 20
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152. Lowest theme vowels or highest roots? : an ‘unaccusative’ theme-vowel class in SlovenianMarko Simonović, Petra Mišmaš, 2022, original scientific article Abstract: This paper focuses on the e/i theme vowel class of verbs in Slovenian to bring together two seemingly unrelated debates: (i) the debate on the correlation between theme-vowel classes and certain argument structures and (ii) the debate on the status of derivational affixes within the framework of Distributed Morphology. Our core data come from a list of 108 unaccusative verbs obtained using adjectival active l-participles as an unaccusativity diagnostic. We show that (i) no unaccusative verbs belong to the two largest theme-vowel classes in Slovenian (a/a and i/i), whereas (ii) the two big theme vowel classes tend to get accusative arguments quite frequently. Most importantly, (iii) the e/i class stands out since more than one half of the unaccusative sample falls into it. The e/i class is furthermore exceptional in that its theme vowel surfaces in adjectival l-participles, it is the theme-vowel class to which inchoatives in inchoative-causative pairs belong and it behaves uniformly with respect to stress. Based on this behavior, which sets the e/i-class apart from other theme-vowel classes, we argue that the morpheme e/i is better analyzed as a derivational affix. We further argue, following Lowenstamm (2014), that derivational affixes are transitive roots rather than categorizers and propose detailed PF and LF instructions for the root under consideration.
Keywords: theme vowels, derivational roots, unaccusatives, l-participles, Slovenian
Published in RUNG: 18.02.2022; Views: 1702; Downloads: 51
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153. Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger ObservatoryP. Abreu, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2022, original scientific article Keywords: cosmic ray experiments, ultra high energy, cosmic rays, physics of the early universe, Pierre Auger Observatory, Lorentz invariance violation effects
Published in RUNG: 18.01.2022; Views: 1626; Downloads: 38
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154. The energy spectrum of cosmic rays beyond the turn-down around 10[sup]17 eV as measured with the surface detector of the Pierre Auger ObservatoryP. Abreu, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, original scientific article Keywords: kozmični žarki, spektertalni detektor, Observatorij Pierre Auger
Published in RUNG: 08.11.2021; Views: 1672; Downloads: 0
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156. Design and implementation of the AMIGA embedded system for data acquisitionA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, original scientific article Keywords: Sprotno zajemanje podatkov, kontrolni sistemi, algoritmi, baze podatkov, Observatorij Pierre Auger
Published in RUNG: 21.07.2021; Views: 2051; Downloads: 180
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157. Extraction of the muon signals recorded with the surface detector of the Pierre Auger Observatory using recurrent neural networksA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, original scientific article Keywords: Statistične metode, Čerenkov detektor, kalibracije in metode prilagajanja, Observatorij Pierre Auger
Published in RUNG: 19.07.2021; Views: 2284; Downloads: 626
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158. Deep-learning based reconstruction of the shower maximum X [sub] (max) using the water-Cherenkov detectors of the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, original scientific article Keywords: Prepoznavanje vzorcev, kalibracija in metode prilagajanja, veliki detektorski sistemi za fiziko in astrofiziko delcev, Observatory Pierre Auger
Published in RUNG: 16.07.2021; Views: 2872; Downloads: 198
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