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845. 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: 255; Downloads: 69
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846. 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: 296; Downloads: 87
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847. 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: 254; Downloads: 114
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848. 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: 241; Downloads: 117
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849. Environmental alterations and sea warming drive seagrass meadow decline in urbanized coastal areas of the northern Adriatic SeaFabrizio Gianni, Annalisa Falace, Martina Orlando-Bonaca, Saul Ciriaco, Danijel Ivajnšič, Sara Kaleb, Lovrenc Lipej, Borut Mavrič, Stefano Querin, Vinko Bandelj, 2025, original scientific article Abstract: Seagrass meadows are important habitat builders, providing food, shelter, and nursery grounds for many species, alongside essential goods and ecosystem services for humanity. However, in the last decades, seagrass meadows have been subjected to numerous pressures, leading to their widespread decline. The northern Adriatic Sea is no exception, with seagrass regression observed notably between 2014 and 2018. This study aims to identify the drivers of the recent seagrass decline in the Gulf of Trieste through a spatial and temporal assessment of seagrass distribution. To assess the relationship between seagrass dynamics and environmental changes, spatiotemporal patterns of environmental variables were analyzed, and generalized additive models were applied for two different time periods: 2009-2013 and 2014-2018. Historical data on seagrass distribution was also collected and compared with the current distribution. Our findings indicate that Cymodocea nodosa remains the dominant species on the northern coast of the Gulf, with a decrease of 30% in Slovenian waters and up to 89% near Trieste (Italy) during 2014-2018. Analysis of physicochemical variables revealed an increase in seawater temperature across the Gulf and a change in nutrient load, particularly in Slovenia, where it decreased significantly. Models achieved high-performance scores, identifying photosynthetically active radiation, nutrients, temperature, and sediment type as key determinants of seagrass occurrence. Nonetheless, additional local-scale factors likely contributed to lower seagrass’ resilience to disturbances. These findings stress the need to develop integrated spatial planning strategies and provide a crucial baseline for future seagrass monitoring and restoration activities.
Keywords: species distribution, climate change, anthropogenic disturbance, urbanization, Northern Adriatic
Published in DiRROS: 08.10.2025; Views: 281; Downloads: 124
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