Searched for: subject%3A%22Diffusion%22
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Teh, Irvin (author), Shelley, David (author), Boyle, J.H. (author), Zhou, Fenglei (author), Poenar, Ana Maria (author), Sharrack, Noor (author), Foster, Richard J. (author), Yuldasheva, Nadira Y. (author), Parker, Geoff J.M. (author)
Purpose: Tensor-valued diffusion encoding can probe more specific features of tissue microstructure than what is available by conventional diffusion weighting. In this work, we investigate the technical feasibility of tensor-valued diffusion encoding at high b-values with q-space trajectory imaging (QTI) analysis, in the human heart in vivo....
journal article 2023
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Agresti, A. (author)
This paper is concerned with the problem of regularization by noise of systems of reaction–diffusion equations with mass control. It is known that strong solutions to such systems of PDEs may blow-up in finite time. Moreover, for many systems of practical interest, establishing whether the blow-up occurs or not is an open question. Here we...
journal article 2023
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Pathak, Royal (author), Spezzano, Francesca (author), Pera, M.S. (author)
Social networks are a platform for individuals and organizations to connect with each other and inform, advertise, spread ideas, and ultimately influence opinions. These platforms have been known to propel misinformation. We argue that this could be compounded by the recommender algorithms that these platforms use to suggest items potentially...
journal article 2023
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Fokkinga, E.P. (author), Hernandez-Tamames, J.A. (author), Ianus, Andrada (author), Nilsson, Markus (author), Tax, Chantal M.W. (author), Perez-Lopez, Raquel (author), Grussu, Francesco (author)
Diffusion-weighted magnetic resonance imaging (DW-MRI) aims to disentangle multiple biological signal sources in each imaging voxel, enabling the computation of innovative maps of tissue microstructure. DW-MRI model development has been dominated by brain applications. More recently, advanced methods with high fidelity to histology are...
review 2023
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Tong, Liang-yu (author), Xiong, Qing Xiang (author), Zhang, Zhidong (author), Chen, Xiangsheng (author), Ye, G. (author), Liu, Qing feng (author)
This paper develops a novel lattice diffusive model to quantitatively study the chloride diffusion coefficient in unsaturated cementitious materials, in which the pore voxels are redistributed to make a better representation of a real microstructure of hardened cement paste. Considering the hierarchical microstructure and different drying...
journal article 2023
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Duivenvoorden, Jorien R. (author), Kramer, Rick P. (author), van Eikema Hommes, M.H. (author), Iedema, Piet D. (author), Hermans, Joen J. (author), Keune, Katrien (author)
Oil paintings are complex, multi-layered systems that are prone to chemical degradation. While it is increasingly recognised that water plays an important role in these degradation reactions, little is known about moisture concentrations in oil paint systems and their temporal variation in response to fluctuating ambient air humidity. This...
journal article 2023
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Agresti, A. (author), Veraar, M.C. (author)
In this paper we consider a class of stochastic reaction-diffusion equations. We provide local well-posedness, regularity, blow-up criteria and positivity of solutions. The key novelties of this work are related to the use transport noise, critical spaces and the proof of higher order regularity of solutions – even in case of non-smooth...
journal article 2023
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Cernuschi, Federico (author), Kulczyk-Malecka, Justyna (author), Zhang, Xun (author), Nozahic, Franck (author), Estournès, Claude (author), Sloof, W.G. (author)
The thermal diffusivity and conductivity of dense and porous binary composites having an insulating and conducting phase were studied across its entire composition range. Experimental evaluation has been performed with MoSi<sub>2</sub> particles embedded into yttria partially stabilized zirconia (YPSZ) as prepared by spark plasma sintering ...
journal article 2023
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Baumgartner, L.M. (author), Kahn, A.P. (author), Hoogland, Maxime (author), Bleeker, J.J. (author), Jager, W.F. (author), Vermaas, D.A. (author)
Electrochemical CO<sub>2</sub> reduction poses a promising pathway to produce hydrocarbon chemicals and fuels without relying on fossil fuels. Gas diffusion electrodes allow high selectivity for desired carbon products at high current density by ensuring a sufficient CO<sub>2</sub> mass transfer rate to the catalyst layer. In addition to CO...
journal article 2023
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Mangnus, Mark J.J. (author), de Wit, Jur W. (author), Vonk, Sander J.W. (author), Geuchies, J.J. (author), Albrecht, Wiebke (author), Bals, Sara (author), Houtepen, A.J. (author), Rabouw, Freddy T. (author)
In recent years, quantum dots (QDs) have emerged as bright, color-tunable light sources for various applications such as light-emitting devices, lasing, and bioimaging. One important next step to advance their applicability is to reduce particle-to-particle variations of the emission properties as well as fluctuations of a single QD’s...
journal article 2023
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Moazzami, Mostafa (author), Ayatollahi, M. R. (author), Akhavan-Safar, Alireza (author), Teixeira De Freitas, S. (author), da Silva, Lucas F.M. (author)
When a composite laminate is subjected to humidity, moisture diffusion occurs depending on the number and thickness of the lamina. Water diffusion changes the mechanical response of laminates and usually causes a significant reduction of the mechanical properties of the composite specimens in ocean structures. One of the most important...
journal article 2023
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Qin, Xi (author), Zhong, Cheng (author), Lin, H.X. (author)
Influence maximization (IM) is a very important issue in social network diffusion analysis. The topology of real social network is large-scale, dynamic, and heterogeneous. The heterogeneity, and continuous expansion and evolution of social network pose a challenge to find influential users. Existing IM algorithms usually assume that social...
journal article 2023
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Aghaeian, S. (author), Brouwer, J.C. (author), Sloof, W.G. (author), Mol, J.M.C. (author), Bottger, A.J. (author)
Since the oxidation reactions in the process of steel production occur in harsh conditions (i.e., high temperatures and gas atmospheres), it is practically impossible to observe in situ the compositional changes in the steel and the formed oxide scale. Hence, a coupled thermodynamic-kinetic numerical model is developed that predicts the...
journal article 2023
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Polat, H.M. (author), van der Geest, Casper (author), de Meyer, Frédérick (author), Houriez, Céline (author), Vlugt, T.J.H. (author), Moultos, O. (author)
Experimentally measuring the diffusivities of CO<sub>2</sub> and H<sub>2</sub>S in aqueous alkanolamine solutions presents an extremely challenging task. To overcome this challenge, we performed Molecular Dynamics (MD) simulations to study the effects of temperature and N-methyldiethanolamine (MDEA) concentration on self-diffusivities of CO...
journal article 2023
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Bai, N. (author), Nourian, Pirouz (author), Luo, Renqian (author), Cheng, Tao (author), Pereira Roders, A. (author)
Mapping cultural significance of heritage properties in urban environment from the perspective of the public has become an increasingly relevant process, as highlighted by the 2011 UNESCO Recommendation on the Historic Urban Landscape (HUL). With the ubiquitous use of social media and the prosperous developments in machine and deep learning,...
journal article 2023
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Wang, Hucheng (author), Fu, Xiaoming (author), Gu, Guanyao (author), Bai, Shengyu (author), Li, Runlai (author), Zhong, Weimin (author), Guo, Xuhong (author), Eelkema, R. (author), van Esch, J.H. (author), Cao, Zhixing (author), Wang, Yiming (author)
Living organisms are capable of dynamically changing their structures for adaptive functions through sophisticated reaction-diffusion processes. Here we show how active supramolecular hydrogels with programmable lifetimes and macroscopic structures can be created by relying on a simple reaction-diffusion strategy. Two hydrogel precursors ...
journal article 2023
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Kim, S. (author), Curko, Josip (author), Matosic, Marin (author), Herrera, Aridai (author), Lopez-Vazquez, Carlos M. (author), Brdjanovic, Damir (author), Garcia, H. (author)
To investigate the influence of high-pressure and shear effects introduced by a concentrated oxygen supply system on the membrane filtration performance, a laboratory-scale membrane bioreactor (MBR) fed artificial municipal wastewater was operated continuously for 80 days in four phases equipped with different aerations systems: (P1) bubble...
journal article 2023
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Kamat, Ameya (author), Lubelli, B. (author), Schlangen, E. (author)
This paper investigates the leaching behaviour of sodium ferrocyanide, a known crystallisation inhibitor of sodium chloride, which is added to mortars for mitigation of salt decay. Leaching and depletion of the inhibitor is a practical performance related issue that might over time, make the inhibitor less effective against salt decay. In...
journal article 2023
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Moazzami, M. (author), Akhavan-Safar, A. (author), Ayatollahi, M. R. (author), Poulis, J.A. (author), da Silva, L. F.M. (author), Teixeira De Freitas, S. (author)
Adhesive joints are frequently exposed to cyclic ageing conditions during their service life, which can have a substantial impact on the mechanical properties of both the adhesive and the substrates. The safe life philosophy, commonly employed in the design of bonded joints, underscores the importance of obtaining an accurate estimate of the...
journal article 2023
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Shan, X. (author), van Gijzen, M.B. (author)
This paper studies time-domain parallelisation using Parareal to speed up the computations of anisotropic diffusion filtering. We consider both explicit and implicit Euler based method for the propagation in time for Parareal. The Preconditioned Conjugate Gradient (PCG) method is used to solve the systems that arise in the implicit based...
conference paper 2023
Searched for: subject%3A%22Diffusion%22
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