Searched for: department%3A%22RST%255C%257Eslsh%257ERadiation%252C%255C%2BScience%255C%2Band%255C%2BTechnology%22
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Ariëns, M.I. (author)Hydrogen gas is an essential reagent in numerous industrial processes including ammonia synthesis. Ammonia is a key intermediate in the synthesis of nitrogen-based fertilisers, e.g. nitrates and urea. According to recent estimates (2008), approximately half of the world population is fed by nitrogen-based fertilisers of synthetic origin....doctoral thesis 2023
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- Vriens, Dennis (author), de Koster, Elizabeth J. (author), de Geus-Oei, L.F. (author), Oyen, Wim J.G. (author) journal article 2023
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- Slart, Riemer H.J.A. (author), de Geus-Oei, L.F. (author), Stevens, Jasper (author), Elsinga, Philip A. (author), Ivashchenko, O. (author), Erba, Paola A. (author) journal article 2023
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Nguyen, M.P. (author), Arif, M. (author), Oostenrijk, Bart (author), Goorden, M.C. (author), Beekman, F.J. (author)Microscopic nuclear imaging down to spatial resolutions of a few hundred microns can already be achieved using low-energy gamma emitters (e.g. <sup>125</sup>I, ∼30 keV) and a basic single micro-pinhole gamma camera. This has been applied to in vivo mouse thyroid imaging, for example. For clinically used radionuclides such as <sup>99m</sup>Tc,...journal article 2023
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Mikityuk, Konstantin (author), Ferreira, Miguel (author), Hatala, Branislav (author), Kloosterman, J.L. (author), Šípová, Monika (author)Five Euratom projects launched since 2017 in support of the development of ESNII/Generation-IV reactor systems are briefly presented in the paper in terms of key objectives, results, and recommendations for the future. These projects focus on various aspects of the following ESNII/Generation-IV systems: Sodium Fast Reactor, Gas Cooled Fast...review 2023
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- de Koster, Elizabeth J. (author), de Geus-Oei, L.F. (author), Oyen, Wim J.G. (author), Vriens, Dennis (author) journal article 2023
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Kleiburg, Fleur (author), Heijmen, Linda (author), Gelderblom, Hans (author), Kielbasa, Szymon M. (author), Bovée, Judith Vmg (author), de Geus-Oei, L.F. (author)Bone and soft tissue sarcomas are a group of rare malignant tumours with major histological and anatomical varieties. In a metastatic setting, sarcomas have a poor prognosis due to limited response rates to chemotherapy. Radioligand therapy targeting prostate-specific membrane antigen (PSMA) may offer a new perspective. PSMA is a type II...review 2023
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Chen, Linda L. (author), van de Burgt, Alina (author), Smit, Frits (author), Audhoe, Rowena S. (author), de Boer, Sandra M. (author), van Velden, Floris H.P. (author), de Geus-Oei, L.F. (author)OBJECTIVE: Since the end of 2019, the coronavirus disease 2019 (COVID-19) virus has infected millions of people, of whom a significant group suffers from sequelae from COVID-19, termed long COVID. As more and more patients emerge with long COVID who have symptoms of fatigue, myalgia and joint pain, we must examine potential biomarkers to find...journal article 2023
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Li, Yan (author), Huang, B. (author), Lin, Guoxing (author), Chen, Jincan (author), Brück, E.H. (author)MnFeP(As, Ge, Si) series compounds are three kinds of MnFe-based magnetocaloric materials, which have giant magnetocaloric effect. In this work, the experimental characteristic curves of new style Mn-Fe-P-Si materials, numbered as 1: Mn<sub>1.32</sub>Fe<sub>0.67</sub>P<sub>0.52</sub>Si<sub>0.49</sub>, 2: Mn<sub>1.37</sub>Fe<sub>0.63</sub>P...journal article 2022
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Ariëns, M.I. (author), Van De Water, L. G.A. (author), Dugulan, A.I. (author), Brück, E.H. (author), Hensen, E. J.M. (author)A set of doped iron oxides (chromium, aluminum, gallium, indium, manganese, zinc, niobium) were prepared by a one-step coprecipitation/calcination approach evaluated for their WGS activity under industrially relevant conditions and characterized in detail. The WGS activity after ageing the doped catalyst for 4 days at 25 bar follows the order...journal article 2022
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Alsayyari, F.S. (author), Tiberga, M. (author), Perko, Z. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)In this paper, we present a reduced-order modeling approach to study the Molten Salt Fast Reactor (MSFR). Our approach is nonintrusive and based on the proper orthogonal decomposition method. We include adaptivity in selecting the sampling points both in time and parameter space. Steady-state and transient analysis were both performed using...journal article 2021
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Mastromarino, S. (author), Rook, R. (author), de Haas, D.W. (author), Verschuur, D.J. (author), Rohde, M. (author), Kloosterman, J.L. (author)A method based on ultrasonic wave propagation is applied for the determination of the viscosity of low viscous liquids. A waveguide is used to remotely transmit the ultrasonic waves from a shear piezoelectric transducer into the liquid. At the solid-liquid interface, a guided wave mode, the shear mode, is used to extract the liquid viscosity....journal article 2021
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Alsayyari, F.S. (author), Perko, Z. (author), Tiberga, M. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)We present an approach to build a reduced-order model for nonlinear, time-dependent, parametrized partial differential equations in a nonintrusive manner. The approach is based on combining proper orthogonal decomposition (POD) with a Smolyak hierarchical interpolation model for the POD coefficients. The sampling of the high-fidelity model to...journal article 2021
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Alsayyari, F.S. (author), Tiberga, M. (author), Perko, Z. (author), Lathouwers, D. (author), Kloosterman, J.L. (author)We use a novel nonintrusive adaptive Reduced Order Modeling method to build a reduced model for a molten salt reactor system. Our approach is based on Proper Orthogonal Decomposition combined with locally adaptive sparse grids. Our reduced model captures the effect of 27 model parameters on k<sub>eff</sub> of the system and the spatial...journal article 2020
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Zhang, W. (author), Liu, H. (author), van Schie, M.M.C.H. (author), Hagedoorn, P.L. (author), Alcalde, Miguel (author), Denkova, A.G. (author), Djanashvili, K. (author), Hollmann, F. (author)It is well-known that energy-rich radiation induces water splitting, eventually yielding hydrogen peroxide. Synthetic applications, however, are scarce and to the best of our knowledge, the combination of radioactivity with enzyme-catalysis has not been considered yet. Peroxygenases utilize H2O2 as an oxidant to promote highly selective...journal article 2020
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Bakker, J.H. (author), Washington, Adam L. (author), Parnell, S.R. (author), van Well, A.A. (author), Pappas, C. (author), Bouwman, W.G. (author)SESANS data analysis has been implemented in the SasView software package, allowing SESANS experiments to be analyzed using a numerical Hankel transformation of isotropic small-angle scattering (SAS) models. The error of the numerical approximation is three orders of magnitude below typical experimental errors. All advanced data fitting...journal article 2020
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- Schaart, D.R. (author), Ziegler, Sibylle (author) journal article 2020
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Tiberga, M. (author), Lathouwers, D. (author), Kloosterman, J.L. (author)Performing accurate numerical simulations of molten salt reactors is challenging, especially in case of fast-spectrum designs, due to the unique physics phenomena characterizing these systems. The limitations of codes traditionally used in the nuclear community often require the development of novel high-fidelity multi-physics tools to...journal article 2020
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Tiberga, M. (author), Hennink, A. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)Accurate methods to solve the Reynolds-Averaged Navier-Stokes (RANS) equations coupled to turbulence models are still of great interest, as this is often the only computationally feasible approach to simulate complex turbulent flows in large engineering applications. In this work, we present a novel discontinuous Galerkin (DG) solver for the...journal article 2020
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Gamarino, M. (author), Dall'Osso, Aldo (author), Lathouwers, D. (author), Kloosterman, J.L. (author)In reactor core nodal analysis, the dependence of few-group, homogenized cross sections on the local physical conditions (i.e., the thermal-hydraulic state and material composition) is commonly represented via multivariate interpolation in parameterized libraries. In this paper, we propose a novel approach to model the spectral effects of...journal article 2019
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