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1.
Determination of Aethalometer multiple-scattering enhancement parameters and impact on source apportionment during the winter 2017/18 EMEP/ACTRIS/COLOSSAL campaign in Milan
Asta Gregorič, Dario Massabò, Griša Močnik, Paolo Prati, Martin Rigler, Luca Santagostini, Ezio Bolzacchini, Alice Corina Forello, Vera Bernardoni, Luca Ferrero, 2021, izvirni znanstveni članek

Opis: In the frame of the EMEP/ACTRIS/COLOSSAL campaign in Milan during winter 2018, equivalent black carbon measurements using the Aethalometer 31 (AE31), the Aethalometer 33 (AE33), and a Multi-Angle Absorption Photometer (MAAP) were carried out together with levoglucosan analyses on 12 h resolved PM2.5 samples collected in parallel. From AE31 and AE33 data, the loading-corrected aerosol attenuation coefficients (bATN) were calculated at seven wavelengths (λ, where λ values are 370, 470, 520, 590, 660, 880, and 950 nm). The aerosol absorption coefficient at 637 nm (babs_MAAP) was determined by MAAP measurements. Furthermore, babs was also measured at four wavelengths (405, 532, 635, 780 nm) on the 12 h resolved PM2.5 samples by a polar photometer (PP_UniMI). After comparing PP_UniMI and MAAP results, we exploited PP_UniMI data to evaluate the filter multiple-scattering enhancement parameter at different wavelengths for AE31 and AE33. We obtained instrument- and wavelength-dependent multiple-scattering enhancement parameters by linear regression of the Aethalometer bATN against the babs measured by PP_UniMI. We found significant dependence of the multiple-scattering enhancement parameter on filter material, hence on the instrument, with a difference of up to 30 % between the AE31 and the AE33 tapes. The wavelength dependence and day–night variations were small – the difference between the smallest and largest value was up to 6 %. Data from the different instruments were used as input to the so-called “Aethalometer model” for optical source apportionment, and instrument dependence of the results was investigated. Inconsistencies among the source apportionment were found fixing the AE31 and AE33 multiple-scattering enhancement parameters to their usual values. In contrast, optimised multiple-scattering enhancement parameters led to a 5 % agreement among the approaches. Also, the component apportionment “MWAA model” (Multi-Wavelength Absorption Analyzer model) was applied to the dataset. It was less sensitive to the instrument and the number of wavelengths, whereas significant differences in the determination of the absorption Ångström exponent for brown carbon were found (up to 22 %).
Ključne besede: black carbon, filter photometer, Aethalometer, source apportionment
Objavljeno: 16.04.2021; Ogledov: 57; Prenosov: 0
.pdf Polno besedilo (1,95 MB)

2.
Določanje virov onesnaženja zraka
2021, druge monografije in druga zaključena dela

Ključne besede: onesnaževanje zraka, viri onesnaževanja, kakovost zraka, aerosoli
Objavljeno: 16.04.2021; Ogledov: 64; Prenosov: 4
URL Polno besedilo (0,00 KB)

3.
Timing techniques applied to distributed modular high-energy astronomy
David Selčan, Mile Karlica, Uroš Kostić, Dejan Gačnik, Andreja Gomboc, P. Efremov, A. Sanna, Aurora Clerici, 2020, objavljeni znanstveni prispevek na konferenci

Ključne besede: nanosateliti, izbruhi sevanja gama, astrofizika
Objavljeno: 16.04.2021; Ogledov: 59; Prenosov: 5
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4.
GrailQuest & HERMES
Aurora Clerici, P. Efremov, Dejan Gačnik, Andreja Gomboc, Uroš Kostić, Mile Karlica, David Selčan, Luciano Burderi, 2020, objavljeni znanstveni prispevek na konferenci

Ključne besede: nanosateliti, izbruhi sevanja gama, astrofizika
Objavljeno: 16.04.2021; Ogledov: 64; Prenosov: 5
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5.
Znanost kot čokolada
Andreja Gomboc, 2021, polemika, diskusijski prispevek, komentar

Ključne besede: znanost, mladi znanstveniki, epidemija
Objavljeno: 15.04.2021; Ogledov: 52; Prenosov: 5
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6.
The scientific payload on-board the HERMES-TP and HERMES-SP CubeSat missions
Mile Karlica, Uroš Kostić, Andreja Gomboc, P. Efremov, Dejan Gačnik, Aurora Clerici, Y. Evangelista, David Selčan, 2020, objavljeni znanstveni prispevek na konferenci

Ključne besede: nanosateliti, izbruhi sevanja gama, astrofizika
Objavljeno: 15.04.2021; Ogledov: 50; Prenosov: 5
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7.
The HERMES-technologic and scientific pathfinder
Mile Karlica, Andreja Gomboc, Uroš Kostić, Darja Gačnik, P. Efremov, Aurora Clerici, F. Fiore, David Selčan, 2020, objavljeni znanstveni prispevek na konferenci

Ključne besede: nanosateliti, izbruhi sevanja gama, astrofizika
Objavljeno: 15.04.2021; Ogledov: 50; Prenosov: 2
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8.
Symmetry
2009, druga izvedena dela

Opis: recenzent 2021-
Ključne besede: physics, chemistry, biology, mathematics, computer science, engineering
Objavljeno: 15.04.2021; Ogledov: 54; Prenosov: 2
.docx Polno besedilo (266,05 KB)
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9.
Neutrosophic sets and systems
druga izvedena dela

Opis: urednik 2020-
Objavljeno: 15.04.2021; Ogledov: 52; Prenosov: 3
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10.
Italian journal of pure and applied mathematics
2010, druga izvedena dela

Opis: Član uredniškega odbora 2020-
Objavljeno: 15.04.2021; Ogledov: 50; Prenosov: 3
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