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947. Načrtovalske in gozdnogojitvene smernice ter ukrepi za gospodarjenje z gozdovi v hudourniških območjih za krepitev varovalne in zaščitne funkcije gozdov : poročilo izsledka 3.1.1Urša Vilhar, 2025, treatise, preliminary study, study Keywords: gozdnogospodarsko načrtovanje, gozdnogojitveno načrtovanje, hudourniki, hudourniška območja, usmeritve, priporočila
Published in DiRROS: 10.10.2025; Views: 263; Downloads: 75
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948. Določanje hudourniških območij v gozdovih ter njihova klasifikacija : poročilo Delovnega sklopa 2Erika Kozamernik, Aleksander Marinšek, Jože Papež, Jaša Saražin, Urša Vilhar, 2025, treatise, preliminary study, study Keywords: gozdovi, hudourniška območja, terminologija, metodologija, klasifikacija, določanje
Published in DiRROS: 10.10.2025; Views: 309; Downloads: 94
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949. Toward practical aluminum organic batteries featuring covalent organic frameworkOlivera Lužanin, Raquel Dantas, Ava Rajh, Urban Košir, Robert Dominko, Klemen Bučar, Matjaž Kavčič, Manuel Souto, Jan Bitenc, 2025, original scientific article Abstract: In recent years, Al metal organic batteries have attracted significant interest due to their promise of sustainability and high volumetric energy densities, while being based on abundant materials. However, many studies assess their performance with insufficient rigor, often emphasizing high capacity and power performance, as well as cycling stability at very high cycling rates. Herein, the feasibility of a highly stable β-ketoenamine-linked anthraquinone-based covalent organic framework (DAAQ-TFP-COF) for rechargeable Al batteries is reassessed. First, the influence of different voltage windows on electrochemical behavior in an ionic liquid electrolyte, identifying an optimal balance between capacity and stability, is investigated. Within the optimized voltage window of 0.5 to 2.0 V, DAAQ-TFP-COF achieves a capacity of 113.9 mAh g−1 at 50 mA g−1. To gain deeper insight into the charge storage mechanism, surface- and bulk-sensitive characterization techniques—energy-dispersive X-ray spectroscopy and X-ray Raman spectroscopy—confirming monovalent AlCl2+ as the main coordination species are employed. Finally, the compatibility of DAAQ-TFP-COF with more cost-effective amide-based Al electrolytes is evaluated. In butyramide-based electrolyte, the organic material exhibits stable performance and high Coulombic efficiency. Based on our findings, a realistic outlook on the key challenges that must be addressed to advance COF-based electrodes for future aluminum battery applications is provided.
Keywords: rechargable batteries, aluminum metal batteries, covalent organic framework
Published in DiRROS: 09.10.2025; Views: 266; Downloads: 124
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950. Induced cycles vertex number and $(1,2)$-domination in cubic graphsRija Erveš, Aleksandra Tepeh, 2026, original scientific article Abstract: A $(1,2)$-dominating set in a graph ▫$G$▫ is a set $S$ such that every vertex outside $S$ has at least one neighbor in $S$, and each vertex in $S$ has at least two neighbors in $S$. The $(1,2)$-domination number, $\gamma_{1, 2}(G)$, is the minimum size of such a set, while $c_{\rm ind}(G)$ is the cardinality of the largest vertex set in that induces one or more cycles. In this paper, we initiate the study of a relationship between these two concepts and discuss how establishing such a connection can contribute to solving a conjecture on the lower bound of $c_{\rm ind}(G)$ for cubic graphs. We also establish an upper bound on $c_{\rm ind}(G)$ for cubic graphs and characterize graphs that achieve this bound.
Keywords: cubic graphs, (1, 2)-domination, induced 2-regular subgraphs, induced cycles vertex
Published in DiRROS: 09.10.2025; Views: 250; Downloads: 124
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