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1132. Votrient (pazopanib) : spremljevalni vodnik za zdravljenjeBreda Škrbinc, 2013, slovar, enciklopedija, leksikon, priročnik, atlas, zemljevid Ključne besede: rak ledvic, tarčna zdravila, bolniki, onkološki bolniki, vodniki
Objavljeno v DiRROS: 03.09.2025; Ogledov: 287; Prenosov: 85
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1133. Temozolomid pri zdravljenju bolnikov z možganskim tumorjem : bolnikov dnevnikUroš Smrdel, Lorna Zadravec-Zaletel, Marija Skoblar Vidmar, Gregor Kos, Ana Lina Vodušek, 2024, slovar, enciklopedija, leksikon, priročnik, atlas, zemljevid Ključne besede: rak glave, temozolomid, možganski tumorji, bolniki
Objavljeno v DiRROS: 03.09.2025; Ogledov: 380; Prenosov: 84
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1134. The role of carbon presence on the strontium hexaferrite phase decomposition during pressureless spark plasma sintering (pSPS)Aleksander Učakar, Andraž Kocjan, Blaž Belec, Janez Košir, Tanja Kallio, Marjeta Maček, Bor Arah, Petra Jenuš, 2025, izvirni znanstveni članek Povzetek: The phase composition and microstructure of Sr-hexaferrite (SFO) ceramics govern the hard magnetic properties. Here, pressureless spark plasma sintering (pSPS) technique was employed for the rapid consolidation (500°C/min) of SFO in a radiating graphite crucible under vacuum and, thus, reductive conditions. A numerical model depicting the temperature profile within the heating crucible was constructed to understand the temperature evolution within the samples. The combination pSPS sintering environment (graphite heating crucible under vacuum) promoted phase decomposition to Sr-enriched and depleted phases of various morphological variations, leading to reduction of hard magnetic properties. Notably, certain newly formed phases exhibited lower melting points, inducing a shift in the sintering mechanism from solid-state sintering to a partial liquid-phase sintering mechanism.
Ključne besede: pressureless spark plasma sintering, electronic ceramics, numerical simulations
Objavljeno v DiRROS: 03.09.2025; Ogledov: 352; Prenosov: 160
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1135. Rethinking the Blue economy : integrating social science for equitable and sustainable outcomesJerneja Penca, Irmak Ertör, Marta Ballesteros, Birgit Pauksztat, Maciej Kowalewski, Dražen Cepić, Sebastian Villasante, Michael Briguglio, Natașa Vaidianu, Cristina Piñeiro-Corbeira, Jose Pascual-Fernández, 2025, objavljeni povzetek znanstvenega prispevka na konferenci Objavljeno v DiRROS: 03.09.2025; Ogledov: 238; Prenosov: 113
Celotno besedilo (336,42 KB)
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1136. Non-destructive ultrasonic inspections of small-scale mock-ups provided with advanced tungsten armours for DEMO divertor targetRiccardo De Luca, Emanuele Cacciotti, Marco Cerocchi, Aljaž Iveković, Petra Jenuš, Marius Wirtz, 2025, izvirni znanstveni članek Povzetek: Within the framework of the EUROfusion Consortium, the Characterization of armour, heat sinks materials and joints sub-project of the Work Package Material (WP-MAT) has been dedicated to the development of different tungsten (W) monoblock mock-ups equipped with advanced materials for divertor target applications in the EU-DEMO fusion reactor. Assessing the status of the relevant joining interfaces of these mock-ups, not only after fabrication but throughout the whole component lifetime, plays a key role in the qualification process. At the ENEA Special Technologies Laboratory (TES), a number of facilities have been built to perform non-destructive inspections of plasma-facing components for fusion applications by ultrasonic testing (UT). The present work reports on the results of the UT inspections assessing the structural integrity of the relevant joining interfaces of three small-scale mock-ups provided with advanced W armour materials, specifically W-matrix with W2C inclusions consolidated by Spark Plasma Sintering (SPS), K-doped rolled W and K-doped laminated W. The UT examinations are carried out after fabrication and after the high heat flux tests (HHFT) at the neutral beam facility GLADIS. All results confirm the high-quality joining achieved by HIP and HRP. During the HHF tests of mock-ups, after a few hundred HHFT cycles defects are detected at the joining interfaces, due to debonding, delamination and W material cracks mainly affecting the loaded zone. The ultrasonic pulse-echo technique provides not only the size and position of the defects in the plane orthogonal to the ultrasonic beam, but also their depth in the material. During the analysis, the probe is inserted inside the pipe and the mock-up is examined in a cylindrical configuration. The coupling medium (demineralized water) is poured only inside the pipe. The main inspection parameters and the piezoelectric probes are chosen to obtain the maximum resolution in accordance with the thickness and joining interfaces to be analyzed.
Ključne besede: DEMO, divertor, advanced tungsten, high heat flux test, non-destructive test, ultrasonic examination
Objavljeno v DiRROS: 03.09.2025; Ogledov: 276; Prenosov: 125
Celotno besedilo (775,68 KB)
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1137. Deuterium retention in tungsten, tungsten carbide and tungsten-ditungsten carbide compositesPetra Jenuš, Anže Abram, Saša Novak, Mitja Kelemen, Matic Pečovnik, Thomas Schwarz-Selinger, Sabina Markelj, 2023, izvirni znanstveni članek Povzetek: The selection of the most suitable material for the EU DEMO divertor is still underway. Current research focuses on the development of tungsten-based materials for plasma-facing applications. In addition to other requirements, the candidate material must also exhibit low intrinsic hydrogen isotope retention. To verify the suitability of the tungsten carbide-containing materials, we examined the effect of carbon in the form of carbide or free carbon on deuterium (D) retention. The samples were consolidated by Field Assisted Sintering (FAST) and examined in terms of phase composition and microstructure before the d-retention studies. The Nuclear Reaction Analysis (NRA) technique was used to determine the depth distribution of D after the exposure to D plasma (fluence of 1.3 × 1024 D/m2 and 1.3 × 1025 D/m2 and an exposure temperature of 370 K and 523 K, respectively). Thermal Desorption Spectroscopy (TDS) was used to measure the D desorption spectra. The surfaces of samples exposed to D plasma were also examined in terms of microstructure by scanning electron microscopy. The study has shown that apart from the d-fluence and exposure temperature, the materials’ composition plays a vital role in d-retention, accompanied by blisters and pillar formation. The lowest d-retention was observed for tungsten and the highest in the W-W2C composite. The blisters and pillars were formed in these two materials but not in the WC, which also contains free carbon. At higher D fluence, approximately 15 to 20-times more blisters and pillars were formed in the W-W2C composite than in the tungsten prepared by the same method. The results suggest that the number of defects causing higher d-retention is the highest in W-W2C. On the other hand, the absence of surface irregularities in the WC-C sample after D retention studies indicates that the cause for higher D retention does not lie in the carbides, but, presumably, the microstructural and crystal lattice defects govern the D retention in tungsten-tungsten carbide systems.
Ključne besede: tungsten, (di)tungsten carbide, deuterium, nuclear reaction analysis, thermal desorption spectroscopy
Objavljeno v DiRROS: 03.09.2025; Ogledov: 340; Prenosov: 131
Celotno besedilo (5,58 MB)
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1139. Spoprijemanje z rakom dojk : napotki za obvladovanje duševne stiskeAndreja Cirila Škufca Smrdel, Tina Rus, Mirjam Rojec, Tamara Stergar, 2024, ni določena Ključne besede: rak dojke, medosebne komunikacije, matere in otroci, nespečnost, utrujenost, kognitivne motnje, psihološki nasveti, pomoč, zdravstvene ustanove
Objavljeno v DiRROS: 03.09.2025; Ogledov: 301; Prenosov: 88
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