1621. Značaj ljubljanskog časopisa Maska (1920/21) u kontekstu jugoslovenskih avangardiKristina Pranjić, 2021, original scientific article Abstract: The article is dedicated to the publications of Ljubomir Micić and Branko Ve Poljanski in Maska, the Ljubljana performing arts journal from 1920. While with his engagement in Maska Micić primarily wanted to present himself as a writer outside Zagreb (first, he published in Maska a review of the play Anfisa, and then his own play Istočni Greh was reviewed), Poljanski used his engagement in Maska for a polemic with Ljubljana critics, to later continue his critical response to Ljubljana’s artistic milieu in his journal Svetokret, as well as in Zenit. Moreover, one of Poljanski’s main motives for publishing an independent journal in Ljubljana was the continuation of the polemic he had started in Maska. Therefore, this article presents the assumption that for a complete genealogy of the beginnings of cooperation between Slovenian avantgarde and representatives of Yugoslav zenithism, it is necessary to take into account
Maska, although it was not considered a revolutionary or avant-garde journal. Yet, its aspiration to become international and its openness to different languages and polemics contributed to the exchange of opinions about art and criticism of the time, which was a fruitful ground for the development of relations between various representatives of the Yugoslav avant-garde and their independent actions.
Keywords: revija Maska, jugoslovanska avantgarda, Branko Ve Poljanski, Ljubomir Micić
Published in RUNG: 11.10.2021; Views: 1763; Downloads: 43
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1622. The emergence and establishment of Yugoslav dada : from Prague to Zagreb (1920-1922)Kristina Pranjić, 2021, original scientific article Abstract: The article focuses on the transnational aspect of Yugoslav Dadaism, which was already an integral part of its founding stage in Prague in 1920, when the main Yugoslav Dadaist, Dragan Aleksić, was a student there. Through an analysis of the already known (but rare) primary and secondary sources and a presentation of some newly found primary sources, the article presents the cooperation between Yugoslav and Czech artists and clarifies the circumstances of establishing this Yugoslav avant-garde movement. Furthermore, because Aleksić’s work was closely connected to Ljubomir Micić’s Zenitism and the activity of Branko Ve Poljanski in Prague, we compare their journals(Zenit, Dada-Jok, Dada Tank, Dada Jazz) and emphasize the points of conflict and competitiveness
among them, which was a constructive part for the further development of Yugoslav Dadaism. Thus,the article contributes to both the local and international positioning of the Yugoslav Dada in the context of the Central European avant-garde.
Keywords: Jugoslovanski dadaizem, Dragan Aleksić, jugoslovanska avantgarda, zenitzem, Branko Ve Poljanski, Ljubomir Micić
Published in RUNG: 11.10.2021; Views: 1885; Downloads: 0
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1623. Characterization of non-refractory (NR) PM[sub]1 and source apportionment of organic aerosol in Kraków, PolandAnna Tobler, Alicja Skiba, Francesco Canonaco, Griša Močnik, Pragati Rai, Gang Chen, Jakub Bartyzel, Miroslaw Zimnoch, Katarzyna Styszko, Jaroslaw Nęcki, 2021, original scientific article Abstract: Kraków is routinely affected by very high air pollution levels, especially during the winter months. Although a lot of effort has been made to characterize ambient aerosol, there is a lack of online and long-term measurements of non-refractory aerosol. Our measurements at the AGH University of Science and Technology provide the online long-term chemical composition of ambient submicron particulate matter (PM1) between January 2018 and April 2019. Here we report the chemical characterization of non-refractory submicron aerosol and source apportionment of the organic fraction by positive matrix factorization (PMF). In contrast to other long-term source apportionment studies, we let a small PMF window roll over the dataset instead of performing PMF over the full dataset or on separate seasons. In this way, the seasonal variation in the source profiles can be captured. The uncertainties in the PMF solutions are addressed by the bootstrap resampling strategy and the random a-value approach for constrained factors.
We observe clear seasonal patterns in the concentration and composition of PM1, with high concentrations during the winter months and lower concentrations during the summer months. Organics are the dominant species throughout the campaign. Five organic aerosol (OA) factors are resolved, of which three are of a primary nature (hydrocarbon-like OA (HOA), biomass burning OA (BBOA) and coal combustion OA (CCOA)) and two are of a secondary nature (more oxidized oxygenated OA (MO-OOA) and less oxidized oxygenated OA (LO-OOA)). While HOA contributes on average 8.6 % ± 2.3 % throughout the campaign, the solid-fuel-combustion-related BBOA and CCOA show a clear seasonal trend with average contributions of 10.4 % ± 2.7 % and 14.1 %, ±2.1 %, respectively. Not only BBOA but also CCOA is associated with residential heating because of the pronounced yearly cycle where the highest contributions are observed during wintertime. Throughout the campaign, the OOA can be separated into MO-OOA and LO-OOA with average contributions of 38.4 % ± 8.4 % and 28.5 % ± 11.2 %, respectively.
Keywords: air pollution, PM1, organic aerosol, black carbon, source apportionment, PMF
Published in RUNG: 08.10.2021; Views: 1905; Downloads: 0
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1628. Kanarski otoki v plamenihUroš Slak, Samo Stanič, Natalija Švab, radio or television event Abstract: Intervju o izbruhu ognjenika Cumbre Vieja na La Palmi, Kanarski otoki, Španjia, ter o raziskavah v okviru projekta Polje Čerenkovih teleskopov (CTA), ki potekajo na observatoriju Roque de los Muchachos.
Keywords: ognjenik, izbruh, astrofizika, gama žarki visokih energij, atmosfera, lidar
Published in RUNG: 04.10.2021; Views: 2169; Downloads: 0
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1630. Pregled, analiza in predlog alternativne oskrbe z energijo - LDC Letališka : Logistično Distribucijski Center Mercator LjubljanaHenrik Gjerkeš, 2021, treatise, preliminary study, study Abstract: Osnovna varianta temelji na podatkih, dimenzijah in ocenah v že izdelani projektni dokumentaciji, razen v tistih delih, kjer smo lahko podali natančnejše ocene na osnovi namensko pridobljenih podatkov in ocen v času izdelave te analize od dobavitelja toplotne energije Energetika Ljubljana, Statističnega urada RS in renomiranega slovenskega proizvajalca in projektanta sistemov na osnovi vrhunskih toplotnih črpalk Kronoterm.
V predlagani varianti 1 se ogrevanje prostorov izvede s toplotnimi črpalkami voda/voda in priklop na sistem daljinskega ogrevanja v določenem obsegu. Hlajenje prostorov je izvedeno z istimi toplotnimi črpalkami voda/voda, ta varianta pa omogoča tudi pasivno hlajenje s podtalnico.
Varianta 1 poleg okoljskih (gretje in hlajenje prostorov LDC Mercator z 68,5 % obnovljivih virov energije) kaže tudi izrazite ekonomske prednosti pred osnovno varianto:
• za 280.000 EUR ali za 47 % nižja investicija;
• za 76.504 EUR ali za 54 % nižji letni vseživljenjski stroški;
• v 15 letih 1.469.270 EUR prihranka pri oskrbi z energijo.
Posebej opozarjamo na dvigovanje cene EU-ETS emisijskih kuponov, ki bodo glede na napovedi tudi v bodoče imeli pomembnejši vpliv na ceno toplote iz sistema daljinskega ogrevanja Energetika Ljubljana.
Investicija v sončno elektrarno izboljša finančni tok oskrbe z energijo LDC Mercator v vseh variantah in kljub visoki investiciji v 15 letih investitorju prinese občutne finančne koristi ter dvigne delež obnovljivih virov na 76,9 %.
Prodaja odpadne toplote izboljša finančno bilanco oskrbe z energijo LDC Mercator, vendar zahteva dodatno investicijo in je občutljiva na odkupno ceno odpadne toplote. Rast cene emisijskih kuponov kljub vsemu daje nezanemarljivi potencial tej varianti in je po preliminarnih informacijah zanimiva za Energetiko Ljubljana, še posebej v kombinaciji z aktualnim razpisom Norveškega mehanizma, ki izkoriščanja podtalnice uvršča med upravičene namene.
Analiza občutljivosti pokaže, da ima zvišanje cene toplote iz SDO ali električne energije manjši vpliv na predlagano varianto 1 v vseh kombinacijah, kot na osnovno varianto. Pri variantah s sončno elektrarno je NSV bolj občutljiva na višino investicije, vendar podražitev električne energije pri vseh variantah prinese zmanjšanje vseživljenjskih stroškov. Zvišanje cene toplote iz SDO ima zanemarljiv vpliv na vseživljenjske stroške predlagane variante 1, kar zmanjšuje tveganje zvišanja stroškov za ogrevanje zaradi nepredvidljive, a hitro naraščajoče cene emisijskih kuponov, ki jih z administrativnimi ukrepi ne moremo kompenzirati.
Visok delež obnovljivih virov energije pri predlagani varianti 1 v vseh oblikah omogoča, da na ne-administrativen način LDC Mercator izpolni standarde skoraj nič-energijskih stavb (sNES) in s tem stopi med vodilne primere dobre prakse trajnostne gradnje.
Keywords: oskrba z energijo, trajnostna energija, Mercator
Published in RUNG: 04.10.2021; Views: 1672; Downloads: 0
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