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Andreo, Guilherme Spinoza (author), Dardavesis, Ioannis (author), Jong, Michiel de (author), Kumar, Pratyush (author), Prihanggo, Maundri (author), Triantafyllou, Georgios (author), van der Vaart, C.G. (author), Verbree, E. (author)Indoor localisation methods are an essential part for the management of COVID-19 restrictions, social distancing, and the flow of people in the indoor environment. Moving towards an open work space in this scenario requires effective real-time localisation services and tools, along with a comprehensive understanding of the 3D indoor space. This...conference paper 2021
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Ledoux, H. (author), Biljecki, Filip (author), Dukai, B. (author), Kumar, Kavisha (author), Peters, R.Y. (author), Stoter, J.E. (author), Commandeur, T.J.F. (author)Three-dimensional city models are essential to assess the impact that environmental factors will have on citizens, because they are the input to several simulation and prediction software. Examples of such environmental factors are noise (Stoter et al., 2008), wind (Garcı́a-Sánchez et al., 2014), air pollution (Ujang et al., 2013), and...journal article 2021
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Kumar, S. (author), Ghosh, D. (author), Donselaar, M.E. (author), Burgers, F. (author), Ghosh, Ashok Kumar (author)Shallow aquifers in many Holocene alluvial basins around the world have in the last three decades been identified as arsenic pollution hotspots, in which the spatial variation of natural (or: geogenic) arsenic concentration is conditioned by the meandering-river geomorphology and the fluvial lithofacies distribution. Despite the large amount of...journal article 2021
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Ghosh, D. (author), Kumar, S. (author), Donselaar, M.E. (author), Corroto, C. (author), Ghosh, A.K. (author)The Ganges Delta is a key area where elemental contamination of groundwater constitutes a human catastrophe. The delta plain geomorphology comprises a large number of abandoned meander bends or oxbow lakes (Donselaar et al., 2017; Ghosh et al., 2021) characterized by an anoxic environment in the lower part of the lake water column (hypolimnion)....abstract 2021
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Kumar, P. (author), Langelaar, Matthijs (author)This article presents a density-based topology optimization method for designing three-dimensional (3D) compliant mechanisms (CMs) and loadbearing structures with design-dependent pressure loading. Instead of interface-tracking techniques, the Darcy law in conjunction with a drainage term is employed to obtain pressure field as a function of...journal article 2021
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Flaschel, Moritz (author), Kumar, Siddhant (author), De Lorenzis, Laura (author)We propose a new approach for data-driven automated discovery of isotropic hyperelastic constitutive laws. The approach is unsupervised, i.e., it requires no stress data but only displacement and global force data, which are realistically available through mechanical testing and digital image correlation techniques; it delivers interpretable...journal article 2021
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Zheng, Li (author), Kumar, Siddhant (author), Kochmann, Dennis M. (author)We present a two-scale topology optimization framework for the design of macroscopic bodies with an optimized elastic response, which is achieved by means of a spatially-variant cellular architecture on the microscale. The chosen spinodoid topology for the cellular network on the microscale (which is inspired by natural microstructures...journal article 2021
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Beran, Daniel (author), Jedlička, Karel (author), Kumar, Kavisha (author), Popelka, Stanislav (author), Stoter, J.E. (author)3D cartographic visualization of a continuous time-dependent phenomenon is not an easy task. The focus of this research is motivated by the struggle to visualize such a phenomenon. Based on the current state of the art, we implemented new visualization methods to visualize continuous time-dependent phenomena. All visualizations are based on...journal article 2021
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Hosseini, Mehdi (author), McNairn, Heather (author), Mitchell, Scott (author), Robertson, Laura Dingle (author), Davidson, Andrew (author), Ahmadian, Nima (author), Bhattacharya, Avik (author), Borg, Erik (author), Kumar, V. (author)The water cloud model (WCM) can be inverted to estimate leaf area index (LAI) using the intensity of backscatter from synthetic aperture radar (SAR) sensors. Published studies have demonstrated that the WCM can accurately estimate LAI if the model is effectively calibrated. However, calibration of this model requires access to field measures...journal article 2021
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Kumar, Prashant (author), Debele, Sisay E. (author), Sahani, Jeetendra (author), Rawat, Nidhi (author), Marti-Cardona, Belen (author), Alfieri, S.M. (author), Basu, Bidroha (author), Basu, Arunima Sarkar (author), Menenti, M. (author)Nature-based solutions (NBS) for hydro-meteorological risks (HMRs) reduction and management are becoming increasingly popular, but challenges such as the lack of well-recognised standard methodologies to evaluate their performance and upscale their implementation remain. We systematically evaluate the current state-of-the art on the models...review 2021
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Kumar, Prashant (author), Debele, Sisay E. (author), Sahani, Jeetendra (author), Rawat, Nidhi (author), Marti-Cardona, Belen (author), Alfieri, S.M. (author), Basu, Bidroha (author), Basu, Arunima Sarkar (author), Menenti, M. (author)To bring to fruition the capability of nature-based solutions (NBS) in mitigating hydro-meteorological risks (HMRs) and facilitate their widespread uptake require a consolidated knowledge-base related to their monitoring methods, efficiency, functioning and the ecosystem services they provide. We attempt to fill this knowledge gap by...review 2021
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Haque, Mohammad T. (author), Will, Marco (author), Tomi, Matti (author), Pandey, Preeti (author), Kumar, Manohar (author), Schmidt, F.E. (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), Steele, G.A. (author)We have studied 1/f noise in critical current I<sub>c</sub> in h-BN encapsulated monolayer graphene contacted by NbTiN electrodes. The sample is close to diffusive limit and the switching supercurrent with hysteresis at Dirac point amounts to ≃ 5 nA. The low frequency noise in the superconducting state is measured by tracking the variation in...journal article 2021
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Slater, David (author), Hill, Rees (author), Kumar, Maneesh (author), Ale, B.J.M. (author)In analysing the performance of complex sociotechnical systems, of particular interest is the inevitable and inherent variability that these systems exhibit, but can normally tolerate, in successfully operating in the real world. Knowing how that variability propagates and impacts the total function mix then allows an understanding of emergent...journal article 2021
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Kumar, Gulshan (author), Saha, Rahul (author), Lal, C. (author), Conti, M. (author)Digital forensic in Internet-of-Thing (IoT) paradigm is critical due to its heterogeneity and lack of transparency of evidence processing. Moreover, cross-border legalization makes a hindrance in such process pertaining to the cloud forensic issues. This urges a forensic framework for IoT which provides distributed computing, decentralization...journal article 2021
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Kumar, Arun (author), Ali, Mohammad (author), Kumar, Ranjit (author), Kumar, Mukesh (author), Sagar, Prity (author), Rani, Rita (author), Kumar, S. (author), Kumar, Dhruv (author), Ghosh, Ashok Kumar (author)Reportedly, 300 million people worldwide are affected by the consumption of arsenic contaminated groundwater. India prominently figures amongst them and the state of Bihar has shown an upsurge in cases affected by arsenic poisoning. Escalated arsenic content in blood, leaves 1 in every 100 human being highly vulnerable to being affected by...journal article 2021
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Butsch, Carsten (author), Chakraborty, Shreya (author), Gomes, S.L. (author), Kumar, Shamita (author), Hermans, L.M. (author)India’s urbanisation results in the physical and societal transformation of the areas sur-rounding cities. These periurban interfaces are spaces of flows, shaped by an exchange of matter, people and ideas between urban and rural spaces—and currently they are zones in transition. Periur-banisation processes result inter alia in changing water...journal article 2021
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Fu, J. (author), Davis, T. P. (author), Kumar, A. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)Oxide dispersion strengthened (ODS) steels are leading candidates for structural materials in nuclear fission and fusion power plants. Understanding the nature of nano-oxide particles in ODS steels is vital for a better control of the microstructure and mechanical properties to further their applications. In this study, electron microscopy...journal article 2021
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Wei, L. (author), Grénman, Henrik (author), Haije, W.G. (author), Kumar, Narendra (author), Aho, Atte (author), Eränen, Kari (author), Wei, L. (author), de Jong, W. (author)Sub-nanometer zeolite 13X-supported Ni-ceria catalysts were synthesized for CO<sub>2</sub> methanation. XRD and SEM results show the structure and morphology of 13X zeolite after impregnation and calcination. Ce loading affected the catalysts’ metal dispersion, reducibility, basicity and acidity, and thence their activity and selectivity....journal article 2021
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Kumar, Kavisha (author)A 3D city model is a digital representation of the spatial features in an urban<br/>environment. Buildings, terrain, vegetation, water bodies, etc. all form an integral part of a 3D city model. The possibility to enrich these city models with additional application-specific information, whether new semantics or geometry, further increases their...doctoral thesis 2020
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Stoter, J.E. (author), Peters, R.Y. (author), Commandeur, T.J.F. (author), Dukai, B. (author), Kumar, Kavisha (author), Ledoux, H. (author)Noise is one of the main problems in urban areas. To monitor and manage noise problems, governmental organisations at all levels are obliged to regularly carry out noise studies. The simulation of noise is an important part of these studies. Currently, different organisations collect their own 3D input data as required in noise simulation in a...journal article 2020