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1222. Municipal solid waste incineration (MSWI) bottom ash-blended cementitious materials : performance, challenges, and potential solutionsBoyu Chen, Priyadharshini Perumal, Chen Liu, Yun Chen, Cheng Chang, Majda Pavlin, Davor Kvočka, Vilma Ducman, Tero Luukkonen, Mirja Illikainen, Guang Ye, 2025, review article Abstract: The recycling of municipal solid waste incineration (MSWI) bottom ash as a supplementary cementitious material (SCM) has attracted global attention, driven by the increasing availability of this by-product and the demand for sustainable SCMs to lower CO2 emissions from cement production. Currently, the widespread use of MSWI bottom ash in the cement industry is hindered by the lack of guidelines to regulate material composition, optimize pretreatment processes, and specify mix design requirements. This review compiles and analyzes literature data on mix design, microstructural evolution, fresh properties, mechanical properties, durability, leaching risks, and environmental impacts of MSWI bottom ash-blended cement pastes, mortars, and concretes. The analysis aims to assess the influence of the pretreatment and physicochemical properties of bottom ash on the microstructure and performance of blended cementitious materials. The Ash Impact Strength Index (AISI) is introduced to quantify the effects of various factors on compressive strength, enabling direct comparison across different studies. Based on the statistical analysis of the 28-day AISI, the key quality requirements for MSWI bottom ash as an SCM are proposed, along with the optimal mix design. This work provides valuable insights and practical guidance to support the integration of bottom ash into the cement industry.
Keywords: ash, ash-blended cementitious materials, performance
Published in DiRROS: 29.08.2025; Views: 419; Downloads: 271
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1223. Effect of sulfide in a 0.2 M NaCl solution on copper and pre-oxidized copper in oxic conditionsKlara Prijatelj, Tadeja Kosec, 2025, original scientific article Abstract: This study investigated copper and pre-oxidized copper immersed in 0.2 M NaCl solutions containing different concentrations of sulfide ions. In order to investigate the corrosion processes, the corrosion potential and electrochemical impedance at room temperature and at an elevated temperature were measured for 24 h during and after exposure to the chloride solution with different sulfide concentrations in aerated conditions. The surfaces of the pre-oxidized copper were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy (EDS), a focused ion beam scanning electron microscopy (FIB-SEM), and Raman spectroscopy. It was shown that the concentration of sulfide ions in the chloride environments, in addition to the temperature itself, greatly affect the film formation in oxic conditions. The thickness of the films observed corresponds well to those calculated using cathodic stripping voltammetry. The mechanism of corroding copper in chloride/sulfide system was proposed.
Keywords: copper, pre-oxidized copper, chloride and sulfide environment, electrochemical properties, surface characterization, Raman, cyclic voltammetry
Published in DiRROS: 29.08.2025; Views: 403; Downloads: 261
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1224. Korpusni vpogled v nestandardno spletno slovenščino : novi samostalniki in semantični premiki v komentarjih družbenih omrežij (JANES v1.0): raziskovalni podatkiMaša Rolih, complete scientific database of research data Abstract: Zbirka vsebuje raziskovalne podatke o novih in releksikaliziranih samostalnikih v nestandardni spletni slovenščini, izluščenih iz korpusa JANES v1.0 (2014–2018). Vključeni so izrazi, ki niso evidentirani v osrednjih slovarskih virih (SSKJ, SP, eSSKJ, SNB, Sprotni slovar), ter samostalniki s semantičnimi premiki v sodobni rabi. Za vsako enoto so navedeni samostalniška oblika, kvalifikatorji (npr. neform., manj form., mlad., avtomobil., polit., splet., mod., glasb., šport., slabš., evfem., vulg., šalj., ekspr.), pomen v kontekstu in konkordančni primer iz korpusa. Podatki so bili pridobljeni z avtomatskim luščenjem samostalnikov v orodju noSketch Engine in nato filtrirani glede na frekvenco, prisotnost v slovarskih virih ter diskurz. Pri tem je bila upoštevana predvsem raba v spletnih forumih in družbenih omrežjih, kjer je pogosta tvorba novih samostalnikov ali pomenskih premikov. Zbirka omogoča vpogled v dinamiko sodobne nestandardne slovenščine in je osredotočena na tiste leksikalne enote, ki kažejo spremembe v besedotvorju, semantiki in pragmatično-ekspresivni rabi.
Keywords: slovenščina, spletna slovenščina, nestandardna leksika, novi samostalniki, semantični premiki, korpus JANES v1.0, družbena omrežja, leksikografija, kvalifikatorji
Published in DiRROS: 29.08.2025; Views: 348; Downloads: 188
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1225. Advanced delivery systems for gene editing : a comprehensive review from the GenE-HumDi COST action working groupAlessia Cavazza, Francisco J. Molina-Estévez, Álvaro Plaza Reyes, Victor Ronco, Asma Naseem, Špela Malenšek, Peter Pečan, Annalisa Santini, Paula Heredia, Araceli Aguilar-González, Duško Lainšček, 2025, review article Keywords: delivery strategies, European cooperation in science and technology, COST, GenE-HumDi, genome editing, base editors, delivery systems, regulatory guidelines
Published in DiRROS: 29.08.2025; Views: 431; Downloads: 185
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1226. Enumerating the number of $k$-matchings in successively amalgamated graphsSimon Grad, Sandi Klavžar, 2026, original scientific article Abstract: In this paper, the transfer matrix technique using the $k$-matching vector is developed to compute the number of $k$-matchings in an arbitrary graph which can be constructed by successive amalgamations over sets of cardinality two. This widely extends known methods from the literature developed for computing the number of $k$-matchings in benzenoid chains, octagonal chains, cyclooctatetraene chains, and arbitrary cyclic chains. Two examples demonstrating how the present method can be applied are given, one of them being an elaborated chemical example.
Keywords: matchings, transfer matrix, k-matching vector, chemical graphs, Toeplitz matrix
Published in DiRROS: 29.08.2025; Views: 329; Downloads: 152
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1227. Yb³⁺-mediated luminescence enhancement in Er³⁺-doped 3D-printed ZrO₂ microarchitecturesCristian Rosero-Arias, Geraldo Cristian Vásquez, Manuel A. Herrera-Zaldívar, R. Margoth Córdova-Castro, Israel De Leon, Francisco Ruiz-Zepeda, Han Gardeniers, David Maestre, Alan Aguirre-Soto, Arturo Susarrey-Arce, 2024, original scientific article Published in DiRROS: 28.08.2025; Views: 340; Downloads: 181
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1228. Improved low-temperature CO oxidation using heterogeneous nanofibrous structures decorated with Pd atoms and nanocrystalsM. A. Rodriguez-Olguin, Dan Cazac, Francisco Ruiz-Zepeda, Stephan Bartling, Marta V. Bosco, Hanan Atia, Reinhard Eckelt, Arturo Manzo-Robledo, Matthias Vandichel, Alejo Aguirre, Han Gardeniers, Arturo Susarrey-Arce, 2025, original scientific article Published in DiRROS: 28.08.2025; Views: 357; Downloads: 177
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1229. Lignin derivatives in chestnut wood hydrochar : mild solvolysis and characterizationValeria Pierpaoli, Miha Grilc, Giorgio Tofani, Blaž Likozar, Edita Jasiukaityte, Enrico Segoloni, Marco Barbanera, Manuela Romagnoli, 2025, original scientific article Published in DiRROS: 28.08.2025; Views: 339; Downloads: 172
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1230. Geokemični atlas MariboraMartin Gaberšek, 2025, scientific monograph Abstract: Poznavanje prostorske porazdelitve vsebnosti kemičnih elementov v tleh je bistveno za zagotavljanje varnega in zdravega bivalnega okolja ter pomembno za prostorsko načrtovanje, posege v prostor in spremljanje dolgoročnih antropogenih vplivov na okolje. Zaradi velikega števila prebivalcev je to še posebej pomembno v urbanih okoljih. V monografiji podajamo rezultate raziskav vsebnosti kemičnih elementov, pH vrednosti in vsebnosti celotnega ter organskega ogljika v tleh v Mariboru in prikaze njihovih prostorskih porazdelitev z geokemičnimi kartami. Vzorčili smo zgornjih 10 cm tal po celotnem Mariboru v mreži 500 × 500 m. Po razklopu z zlatotopko smo z ICP-MS analizirali vsebnosti 65 elementov. Rezultati kažejo, da tla na območju Maribora niso močno obremenjena s potencialno strupenimi elementi, odkrili smo le manjša območja in nekatere izolirane lokacije z visokimi vsebnostmi bakra (Cu), svinca (Pb) in cinka (Zn), predvsem znotraj industrijskih območij ter starega mestnega jedra. Njihove mediane, ki so nekoliko nad slovenskimi, velika variabilnost v vsebnostih in prostorska porazdelitev kažejo na vsaj deloma antropogen izvor. Deloma antropogen izvor lahko pripišemo tudi kadmiju (Cd), antimonu (Sb), kositru (Sn), živemu srebru (Hg) in srebru (Ag). Nekateri preostali elementi, kot so aluminij (Al), kobalt (Co), krom (Cr), železo (Fe) in vanadij (V) jasno odražajo prevladujoč vpliv geološke podlage. S predstavljeno raziskavo smo želeli opredeliti trenutno geokemično stanje tal v Mariboru, približati rezultate splošni javnosti in omogočiti dolgoročno spremljanje stanja tal ter okolja na splošno.
Keywords: soil, chemical elements, potentially toxic elements, geochemical mapping, urban geochemistry
Published in DiRROS: 28.08.2025; Views: 442; Downloads: 1932
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