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Luo, T. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author)Winding loss calculation is essential for inductor and transformer design. In this article, a revised 1-D Ferreira's formula is proposed, which considers the interaction between conductors. Then, a 2-D loss calculation approach is proposed based on the analytical solution of round conductors under a uniform external field. An equivalent...journal article 2022
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Luo, T. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author)In this article, an approach combining semi-empirical equations and the method of images is proposed for round conductor layer windings with un-gapped core. The new equation for proximity effect can convert the constant field strength from the magneto-motive force (MMF) across the core window into a frequency-dependent uniform background...journal article 2023
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Luo, T. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author)Magnetic components are essential parts in many power electronic applications. Their characteristics deeply impact the performances of the applications. This article proposed a 2-D calculation method for frequency-dependent winding losses and leakage inductance of magnetic components of round conductors. The method does not have any...journal article 2023
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Satymov, Rasul (author), Bogdanov, Dmitrii (author), Dadashi, Mojtaba (author), Lavidas, G. (author), Breyer, Christian (author)Climate change is driving the adoption of sustainable energy, with low-cost solar photovoltaics and wind power at the forefront. However, land-constrained regions and islands have a limited onshore renewable energy potential. Wave power may prove useful for such regions, supported by growing literature in the field. This study delves into...journal article 2024
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Cosmi, V. (author), Wang, B. (author), Goorden, M.C. (author), Beekman, F.J. (author)Background: Gamma camera imaging, including single photon emission computed tomography (SPECT), is crucial for research, diagnostics, and radionuclide therapy. Gamma cameras are predominantly based on arrays of photon multipliers tubes (PMTs) that read out NaI(Tl) scintillation crystals. In this way, standard gamma cameras can localize ɣ-rays...journal article 2024
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Spierenburg, L.J. (author), van Lint, J.W.C. (author), van Oort, N. (author)Enabling cycling at the home side or at the activity side of transit trips has been recognized as a promising solution to address transit network discrepancies and enhance connectivity between residents and employment opportunities. However, this multimodal solution is conditional to bicycle parking and cycle lanes, and urban planners need...journal article 2024
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Tollenaar, Veronica (author), Zekollari, Harry (author), Kittel, Christoph (author), Farinotti, Daniel (author), Lhermitte, S.L.M. (author), Debaille, Vinciane (author), Goderis, Steven (author), Claeys, Philippe (author), Joy, Katherine Helen (author), Pattyn, Frank (author)More than 60% of meteorite finds on Earth originate from Antarctica. Using a data-driven analysis that identifies meteorite-rich sites in Antarctica, we show climate warming causes many extraterrestrial rocks to be lost from the surface by melting into the ice sheet. At present, approximately 5,000 meteorites become inaccessible per year ...journal article 2024
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Cavalcante, Túlio de M. (author), Castiel Reis de Souza, A. (author), Hajibeygi, H. (author), Carvalho, Darlan K.E. (author), Lyra, Paulo R.M. (author)The modeling of fluid flow in heterogeneous, anisotropic and fractured porous media is relevant in many applications, including hydrocarbon and groundwater extraction, dispersion of contaminants, hydrogen or carbon dioxide (CO<sub>2</sub>) storage. Thus, accurate and scalable simulation of fluid flow through these formations continues to be a...journal article 2024
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Lee, Won Yong (author), Wen, C. (author), Pham, N.H. (author), Khaksaran, Mohammad Hadi (author), Lee, S. (author), Zhang, Shi Li (author)Tracing fast nanopore-translocating analytes requires a high-frequency measurement system that warrants a temporal resolution better than 1 µs. This constraint may practically shift the challenge from increasing the sampling bandwidth to dealing with the rapidly growing noise with frequencies typically above 10 kHz, potentially making it...journal article 2024
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Thorbecke, J.W. (author), Almobarak, Mohammed (author), van IJsseldijk, J.E. (author), Brackenhoff, Joeri (author), Meles, Giovanni (author), Wapenaar, C.P.A. (author)The Marchenko algorithm can suppress the disturbing effects of internal multiples that are present in seismic reflection data. To achieve this, a set of coupled equations with four unknowns is solved. These coupled equations are separated into a set of two equations with two unknowns using a time window. The two unknown focusing functions can...journal article 2024
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Kashifi, M.T.K. (author)Road traffic crash is a global tragedy that leads to economic loss, injury, and fatalities. Understanding the severity of a road crash at the early stages is vital to timely providing emergency medical services to crash victims. This study developed a crash emergency response management framework that requires basic crash information for...journal article 2024
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Ren, S. (author), Liu, X. (author), Erkens, S. (author)The low-temperature relaxation and fatigue cracking performance are two essential aspects in estimating the rejuvenation efficiency of recycling agents (RAs). This study aims to fundamentally investigate the effects of recycling agent type/dosage and aging degree of bitumen on thermodynamic and rheological properties of rejuvenated bitumen at...journal article 2024
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Zeng, Y. (author), Nunez, Alfredo (author), Li, Z. (author)A transfer function (TF) is an effective representation of the load-response relationship of railway track structures. To fill the gap in measuring track structure TFs over a wide frequency range from a moving vehicle, we develop a TF measurement system and the associated TF estimation methodology. Accelerometers are utilized to estimate the...journal article 2024
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Zhang, P. (author), Li, Z. (author)This paper aims at identifying the formation mechanism of short pitch rail corrugation using an improved configuration of a 1/5 scaled V-Track test rig. The loading conditions of the V-Track are designed to simulate the wheel-rail dynamic interactions on the tangent track. Corrugation initiation and consistent growth are successfully produced...journal article 2024
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Jain, A. (author), Metrikine, A. (author), Steenbergen, M.J.M.M. (author), van Dalen, K.N. (author)Railway transition zones (RTZs) experience higher rates of degradation compared to open tracks, which leads to increased maintenance costs and reduced availability. Despite existing literature on railway track assessment and maintenance, effective design solutions for RTZs are still limited. Therefore, a robust design criterion is required to...journal article 2024
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Li, Meng (author), Li, Chao (author), Wu, Guanyin (author), An, Xizhong (author), Zhang, Hao (author), Fu, Haitao (author), Yang, Xiaohong (author), Zou, Qingchuan (author), Wu, Yongli (author), Dong, Kejun (author)An in-depth exploration of the reaction kinetics and thermo-chemical behaviors of the raceway can offer practical insights for optimizing the operations of blast furnace (BF), thus achieving a more effective iron and steel production process. In this study, the dynamic characteristics and the flow, heat and mass transfer behaviors in the BF...journal article 2024
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Shoja, Aydin (author), van der Neut, J.R. (author), Wapenaar, C.P.A. (author)Recently, the focus of reflection seismologists has shifted to applications where a high-resolution image of the subsurface is required. Least-Squares Reverse-Time Migration (LSRTM) is a common tool used to compute such images. Still, its high computational costs have led seismologists to use target-oriented LSRTM for imaging only a small target...journal article 2024
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Haverkort, J.W. (author), Sanderse, B. (author), Padding, J.T. (author), Blake, J.W. (author)In flow-by capacitive deionization (CDI) brackish water flows between two electrodes that capacitively remove salt. We assume low inlet concentrations so “salt shocks” appear in the electrodes and the process becomes diffusion-limited. For unit charge efficiency, a simplified model is derived consisting of two coupled partial differential...journal article 2024
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van Woudenberg, T.R. (author), van der Meer, F.P. (author)In the design of steel structures, optimization methods can find minimum weight solutions. However, the solutions tend to have a high diversity of profiles, thereby raising costs. Grouping methods provide a solution by limiting the number of unique profiles, while still providing an optimal solution. This study proposes a new grouping method and...journal article 2021
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Mier Escurra, C. (author), Mor, A. R. (author), Luo, T. (author), Vaessen, P.T.M. (author)The correct identification of partial discharges (PDs) is instrumental for the maintenance plan in gas-insulated systems (GIS). However, onsite PD measurements are difficult, especially in HVDC systems, where partial discharges can be confused with interference. This paper proposes a method to discern PDs from interferences based on the GIS...journal article 2024