1241. Towards harmonized reduction of seismic vulnerability : analyzing regulatory and Incentive frameworks in the Adriatic—Ionian RegionPetra Triller, Angela Santangelo, Giulia Marzani, Maja Kreslin, 2025, izvirni znanstveni članek Povzetek: The Adriatic–Ionian region is seismically very active and poses a major challenge for risk mitigation. Each country has developed laws, standards, and techniques to reduce seismic vulnerability. The ADRISEISMIC project created a database of existing regulatory and incentive frameworks, based on a comprehensive study conducted in six countries. The study covered seismic norms, building regulations, urban planning regulations, incentive frameworks, and post-earthquake planning. A comparative matrix was developed in which key parameters, such as year of issuance, references to EU regulations, level of enforcement, mandatory status, target groups, reference period in relation to earthquake occurrence, and consideration of cultural heritage, were analyzed. The database aims to support a harmonized strategy to reduce seismic vulnerability by promoting measures based on common reference standards. This increases safety, improves the built environment, and minimizes risks to people and nature. Particular attention will be paid to historic urban areas that are both vulnerable and rich in cultural heritage. The collected regulatory and incentive framework will serve as a basis for future research to support the identification of good practices and the formulation of customized roadmaps to apply them to reduce seismic vulnerability.
Ključne besede: seismic vulnerability, regulatory and incentive frameworks, survey, seismic norms, building regulation, urban planning regulation, seismic incentive frameworks, post-earthquake planning, adriatic–ionian region, collection and systematization of documents
Objavljeno v DiRROS: 27.08.2025; Ogledov: 337; Prenosov: 255
 Celotno besedilo (3,91 MB)
Gradivo ima več datotek! Več... |
1242. Multi-scale X-ray techniques for assessing recycled concrete aggregate : from XRPD analysis of leftover cement in recycled aggregates to micro-CT imaging of concrete microstructureA. Bisciotti, Lucia Mancini, Alberto Viani, Vesna Zalar Serjun, Ana Mladenovič, Giuseppe Cruciani, 2025, izvirni znanstveni članek Povzetek: The content of leftover cement paste is a crucial parameter for determining recycled aggregates quality. Various methods assess this, including wet techniques (acid dissolution, chemical degradation, water absorption), physical approaches (freeze-thaw cycles, mechanical shredding, oven-dried density, thermal disaggregation), and spectroscopic or microscopy analyses. However, these methods often lack accuracy, are time-consuming, or depend on operator skill. A novel X-ray Powder Diffraction and Rietveld quantitative phase analysis approach is introduced to improve measurements precision. Results are compared with multi-scale analyses (microscopy, Xray computed tomography, mechanical testing) on recycled aggregate concrete specimens. Findings highlight a strong correlation between leftover cement paste content and key concrete properties, including microstructure, hydration products, and mechanical performance. This study confirms that leftover cement paste content is a decisive factor in recycled concrete aggregate properties, and that the proposed method offers a rapid and reliable approach to control this parameter.
Ključne besede: recycled concrete aggregate, leftover cement paste, CDW, X-ray diffraction, microstructure
Objavljeno v DiRROS: 27.08.2025; Ogledov: 333; Prenosov: 218
Celotno besedilo (8,35 MB)
Gradivo ima več datotek! Več... |
1243. Investigation of the interactions and electromagnetic shielding properties of graphene oxide/platinum nanoparticle composites prepared under low-dose gamma irradiationDejan Kepić, Miloš Milović, Dušan Sredojević, Andjela Stefanović, Brankica Gajić, James L. Mead, Blaž Nardin, Blaž Likozar, Janvit Teržan, Muhammad Yasir, Warda Saeed, Svetlana P. Jovanović, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 27.08.2025; Ogledov: 254; Prenosov: 146
Celotno besedilo (2,60 MB)
Gradivo ima več datotek! Več... |
1244. |
1245. |
1246. Coordination chemistry of copper and nickel with xenon difluoride and the hexafluororuthenate(V) anion : synthesis and structural studiesTomaž Mržljak, Evgeny A. Goreshnik, Gašper Tavčar, Melita Tramšek, 2025, izvirni znanstveni članek Povzetek: In the photochemical reactions between MF2 (M = Cu, Ni), Ru, and F2 in anhydrous HF, Cu(RuF6)2, and Ni(RuF6)2 are formed. Only crystals of Cu(RuF6)2 are obtained during the crystallization of the powdered products. Cu(RuF6)2 crystallizes in the triclinic space group Pmathematical equation. The Cu atoms are coordinated by six F atoms, which are shared with octahedral RuF6 units. Together, they form slabs that are interconnected by van der Waals forces. In the reactions between M(RuF6)2 (M = Cu, Ni) and 2XeF2 (1:2 molar ratio), [Cu(XeF2)2](RuF6)2 and [Ni(XeF2)2](RuF6)2 are formed. They both crystallize in the monoclinic space group P21/c. The metal center is coordinated by six F atoms. Two F atoms are provided by two nonbridging XeF2 molecules, while the remaining four originate from four bridging [RuF6]- anions. In the reactions between M(RuF6)2 (M = Cu, Ni) and an excess of XeF2, [Cu(XeF2)6](RuF6)2 and [Ni(XeF2)6](RuF6)2 are formed. They are not isostructural, as the first crystallizes in the triclinic space group Pmathematical equation, while the second crystallizes in the trigonal space group Rmathematical equation. In both cases, homoleptic cations [M(XeF2)6]2+ are present, with the metal center coordinated by six nonbridging XeF2 molecules, while the [RuF6]- anions are discrete.
Ključne besede: coordination chemistry, X-ray diffraction, xenon difluoride
Objavljeno v DiRROS: 26.08.2025; Ogledov: 348; Prenosov: 175
Celotno besedilo (2,51 MB)
Gradivo ima več datotek! Več... |
1247. |
1248. |
1249. |
1250. |
