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Wilde, N. (author), Smith, Stephen L. (author), Alonso-Mora, J. (author)When designing a motion planner for autonomous robots there are usually multiple objectives to be considered. However, a cost function that yields the desired trade-off between objectives is not easily obtainable. A common technique across many applications is to use a weighted sum of relevant objective functions and then carefully adapt the...journal article 2024
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Hung, S. (author), Kalisvaart, D. (author), Smith, C.S. (author)Image scanning microscopy (ISM) achieves resolution beyond the diffraction limit by a factor of √2. However, prior ISM research predominantly employs scalar diffraction theory, neglecting critical physical effects such as polarization, aberrations, and Stokes shift. This paper presents a comprehensive vectorial ISM point spread function (PSF)...journal article 2024
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Alders, D.C. (author), Vlieland, J. (author), Thijs, M.A. (author), Konings, R. (author), Smith, A.L. (author)The thermodynamic and thermo-physical properties of the molten salt system [Formula presented] have been investigated using an experimental and modelling approach. This molten salt system includes a single intermediate compound [Formula presented], whose structure has been investigated using X-ray and neutron diffraction. Furthermore, this...journal article 2024
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Middela, Mounisai Siddartha (author), Mahesh, S. (author), McNabola, Aonghus (author), Smith, William (author), Timoney, David (author), Ekhtiari, Ali (author), Fowler, Ben (author), Willis, Paul (author), Rose, Rebecca (author)Assessing real-world emissions from buses and taxis is vital to comprehend their impact on urban air quality. Such vehicles differ significantly from the majority of the fleet owing to their higher mileage rates. However, few studies have focused on specifically assessing the emissions from this segment of the vehicle fleet. In this context,...journal article 2024
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Khosravi, M. (author), Huber, Benjamin (author), Decoussemaeker, Antoon (author), Heer, Philipp (author), Smith, Roy S. (author)Model Predictive Control can cope with conflicting control objectives in building energy managements. In terms of user satisfaction, visual comfort has been proven in several studies to be a crucial factor, however thermal comfort is typically considered the only important aspect. Besides human well-being, visual comfort strongly impacts the...journal article 2024
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Kalisvaart, D. (author), Hung, S. (author), Smith, C.S. (author)Modulation enhanced single-molecule localization microscopy (meSMLM), where emitters are sparsely activated with sequentially applied patterned illumination, increases the localization precision over single-molecule localization microscopy (SMLM). The precision improvement of modulation enhanced SMLM is derived from retrieving the position of an...journal article 2024
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Piaggio, A.L. (author), Smith, Geo (author), de Kreuk, M.K. (author), Lindeboom, R.E.F. (author)Particle-bubble collisions in dissolved air flotation (DAF) systems play a crucial role in the removal of total suspended solids (TSS). DAF particle-bubble collision models incorporate factors such as particle diameters, charge and density, bubble diameters, and collision factors. The challenge lies in accounting for the wide range of...journal article 2024
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- Smith, S.J. (author), Lauria, Mélanie (author), Higgins, Christopher P. (author), Pennell, Kurt D. (author), Blotevogel, Jens (author), Arp, Hans Peter H. (author) journal article 2024
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Smith, Caitlin (author), Shepherd, Jami (author), Renaud, G.G.J. (author), van Wijk, Kasper (author)We present a technique called photoacoustic vector-flow (PAVF) to quantify the speed and direction of flowing optical absorbers at each pixel from acoustic-resolution PA images. By varying the receiving angle at each pixel in post-processing, we obtain multiple estimates of the phase difference between consecutive frames. These are used to...journal article 2024
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Jonker, R. G. (author), AlYousif, A.Y. (author), Hofland, Bas (author), Antonini, A. (author), Zoon, Arthur (author), Smith, Gregory (author)This study treats a detached homogenous low-crested structure (HLCS) made of Cubipod concrete elements placed seaward of a vertical wall (forming a basin in between) to reduce overtopping. Assessing the complex hydrodynamics and effects of changing the geometry of such a system in relation to overtopping reduction is challenging. The...journal article 2024
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Almajed, Hussain M. (author), Kas, Recep (author), Brimley, Paige (author), Crow, Allison M. (author), Somoza Tornos, A. (author), Hodge, Bri Mathias (author), Burdyny, T.E. (author), Smith, Wilson A. (author)CO<sub>2</sub> from carbonate-based capture solutions requires a substantial energy input. Replacing this step with (bi)carbonate electrolysis has been commonly proposed as an efficient alternative that coproduces CO/syngas. Here, we assess the feasibility of directly integrating air contactors with (bi)carbonate electrolyzers by leveraging...journal article 2024
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Garina, E. (author), den Adel, Ruud (author), van Duynhoven, John (author), Smith, Gregory N. (author), Dalgliesh, Robert M. (author), Sztucki, Michael (author), Bouwman, W.G. (author)Plant-based meat alternatives are seeing considerable interest due to their potential to reduce environmental burden and enhance population health. The food industry, therefore, seeks routes to provide the consumer with whole-cut plant-based products that closely resemble meat products. High-moisture extrusion (HME) of plant proteins enables the...journal article 2024
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Zheng, Kaifeng (author), Marcella, Nicholas (author), Smith, A.L. (author), Frenkel, Anatoly I. (author)Thermal properties of actinides in molten salts are linked to the strongly disordered local environment of actinide ions. We illustrate both the limitations of the commonly used fitting method for analysis of extended X-ray absorption fine structure (EXAFS) spectra in molten UF<sub>4</sub> and a possible solution using an “objective neural...journal article 2024
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Walker, David W. (author), Vergopolan, Noemi (author), Cavalcante, Louise (author), Smith, Kelly Helm (author), Agoungbome, David (author), Almagro, André (author), Apurv, Tushar (author), Dahal, Nirmal Mani (author), Hoffmann, David (author)Flash droughts, characterized by rapid onset and intensification, are increasingly occurring as a consequence of climate change and rising temperatures. However, existing hydrometeorological definitions fail to encompass the full range of flash droughts, many of which have distinct local physical attributes. Consequently, these events often...journal article 2023
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Khosravi, M. (author), Smith, Roy S. (author)The notion of reproducing kernel Hilbert space (RKHS) has emerged in system identification during the past decade. In the resulting framework, the impulse response estimation problem is formulated as a regularized optimization defined on an infinite-dimensional RKHS consisting of stable impulse responses. The consequent estimation problem is...journal article 2023
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Tiwari, V. (author), Abbink, T. F. (author), Ocadiz flores, J.A. (author), Flèche, J. L. (author), Gueneau, C. (author), Chatain, S. (author), Smith, A.L. (author), Martinet, J. (author), Venard, C. (author)A thorough understanding of the corrosion chemistry between molten salt fuel and structural materials (e.g., steel) is key for the advancement of Molten Salt Reactor technology. In this work, we consider more specifically the case of a chloride fuel salt mixture and the thermochemistry of a salt mixture such as (NaCl-MgCl<sub>2</sub>-PuCl<sub...journal article 2023
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Tsan, Vi hung (author), Fan, D. (author), Caneva, S. (author), Smith, C.S. (author), Verbiest, G.J. (author)A low-cost glass-based microfluidic flow cell with a piezo actuator is built using off-the-shelf parts (total cost €9 per device) to apply acoustophoretic force on polystyrene micro-beads. The main challenge in the fabrication of these devices was to ensure their leak tightness, which we solved using double-sided tape and nail polish. Beads...journal article 2023
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Noom, J. (author), Smith, C.S. (author), Verbiest, G.J. (author), Katan, A.J. (author), Soloviev, O.A. (author), Verhaegen, M.H.G. (author)We propose to use the State Estimation by Sum-of-Norms Regularisation (STATESON-)algorithm for recovering the tip-sample interaction in high-speed tapping mode atomic force microscopy (AFM). This approach enables accurate sample height estimation for each independent cantilever oscillation period, provided that the tip-sample interaction...journal article 2023
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Fan, D. (author), Cnossen, J.P. (author), Hung, S. (author), Kromm, D. (author), Dekker, N.H. (author), Verbiest, G.J. (author), Smith, C.S. (author)To better understand the interactions between biological molecules, a high optical resolution in all three dimensions is crucial. The intrinsically lower axial resolution of microscopes however, is a limiting factor in fluorescence imaging, correspondingly in fluorescence based single molecule localization microscopy (SMLM). Here, we present...journal article 2023
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Botros, Alexander (author), Gilhuly, Barry (author), Wilde, N. (author), Sadeghi, Armin (author), Alonso-Mora, J. (author), Smith, Stephen L. (author)We study the problem of deploying a fleet of mobile robots to service tasks that arrive stochastically over time and at random locations in an environment. This is known as the Dynamic Vehicle Routing Problem (DVRP) and requires robots to allocate incoming tasks among themselves and find an optimal sequence for each robot. State-of-the-art...journal article 2023