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1423. Comparing black-carbon- and aerosol-absorption-measuring instruments – a new system using lab-generated soot coated with controlled amounts of secondary organic matterDaniel M. Kalbermatter, Griša Močnik, Luka Drinovec, Bradley Visser, Jannis Röhrbein, Matthias Oscity, Ernest Weingartner, Antti-Pekka Hyvärinen, Konstantina Vasilatou, 2022, original scientific article Abstract: We report on an inter-comparison of black-carbon- and aerosol-absorption-measuring instruments with laboratory-generated soot particles coated with controlled amounts of secondary organic matter (SOM). The aerosol generation setup consisted of a miniCAST 5201 Type BC burner for the generation of soot particles and a new automated oxidation flow reactor based on the micro smog chamber (MSC) for the generation of SOM from the ozonolysis of α-pinene. A series of test aerosols was generated with elemental to total carbon (EC TC) mass fraction ranging from about 90 % down to 10 % and single-scattering albedo (SSA at 637 nm) from almost 0 to about 0.7. A dual-spot Aethalometer AE33, a photoacoustic extinctiometer (PAX, 870 nm), a multi-angle absorption photometer (MAAP), a prototype photoacoustic instrument, and two prototype photo-thermal interferometers (PTAAM-2λ and MSPTI) were exposed to the test aerosols in parallel. Significant deviations in the response of the instruments were observed depending on the amount of secondary organic coating. We believe that the setup and methodology described in this study can easily be standardised and provide a straightforward and reproducible procedure for the inter-comparison and characterisation of both filter-based and in situ black-carbon-measuring (BC-measuring) instruments based on realistic test aerosols.
Keywords: black carbon, aerosol absorption, secondary organic aerosol, coating
Published in RUNG: 01.02.2022; Views: 1728; Downloads: 48
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1424. Investigation of Slovenian copular agreementFranc Marušič, Rok Žaucer, 2021, published scientific conference contribution Abstract: This paper reports on a detailed investigation of agreement inside simple predicative sentences. In this type of sentence, both noun phrases are in the nominative, so in principle
either one can trigger agreement on the copular verb. We examine various types of copular
contructions and show that regardless of the type of predicative sentence, when a plural
is combined with a singular, it is always the plural that agrees. Similarly, when a dual is
combined with a singular, the dual wins out. But when we combine a dual and a plural, the
copula can agree with either of the two noun phrases, with a preference for the noun phrase
following the copula. We discuss the relevance of these findings for recent literature on
predication.
Keywords: agreement, copula, number, singular, dual, plural, Slovenian
Published in RUNG: 31.01.2022; Views: 1737; Downloads: 0
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1425. Natural sporopollenin microcapsules composites from cellulose and chitosan : synthesis and characterizationPatricia Cazón, Hanna Budasheva, Dorota Korte, Mark Mitmoen, Chieu D. Tran, Mladen Franko, 2021, published scientific conference contribution abstract Keywords: CS:CL biocomposites, beam deflection spectrometry, natural sporopollenin, porosity
Published in RUNG: 31.01.2022; Views: 1855; Downloads: 16
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1426. Knots and knot-hyperpaths in hypergraphsSaifur Rahman, Maitrayee Chowdhury, A. Firos, Irina Elena Cristea, 2022, original scientific article Keywords: hypergraph, hyperpath, hypertree, knot, hypercontinuity, equivalent hyperpaths
Published in RUNG: 31.01.2022; Views: 1566; Downloads: 70
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1428. Near-infrared supernova Ia distances : host galaxy extinction and mass-step corrections revisitedJ. Johansson, S. B. Cenko, O. D. Fox, S. Dhawan, Ariel Goobar, V. Stanishev, N. Butler, W. H. Lee, A. M. Watson, U. C. Fremling, Tanja Petrushevska, 2021, original scientific article Keywords: supernova, cosmology, extinction
Published in RUNG: 26.01.2022; Views: 1661; Downloads: 35
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