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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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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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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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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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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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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
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Stoter, J.E. (author), Arroyo Ohori, G.A.K. (author), Dukai, B. (author), Labetski, A. (author), Kumar, Kavisha (author), Vitalis, S. (author), Ledoux, H. (author)Semantically enriched 3D city models have the potential to be powerful hubs of integrated information for computer-based urban spatial analysis. This article presents the state of the art in 3D city modelling in the context of broader developments such as smart cities and digital twins, and outlines six challenges that must be overcome before 3D...journal article 2020
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Wei, L. (author), Haije, W.G. (author), Kumar, Narendra (author), Peltonen, Janne (author), Peurla, Markus (author), Grenman, L.O.H. (author), de Jong, W. (author)Zeolite 13X and 5A supported Ni catalysts were synthesized for CO<sub>2</sub> methanation using the evaporation impregnation method. The influence of using different Ni precursors (nitrate, citrate, and acetate) as well as calcination temperatures on the catalyst properties and performance were investigated. XRD, SEM-EDX, TEM, STEM-EDX, N<sub...journal article 2020
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Ravi, A.M. (author), Kumar, A. (author), Herbig, Michael (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)The rate of bainite formation depends on several factors such as austenite grain size, decomposition of austenite into other phases and austenite composition. Although studies have been carried out to understand various factors affecting bainite formation, open lines of investigation still remain. In this work, the effect of ferrite formation...journal article 2020
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Koeze, D.J. (author), Hong, Lingtjien (author), Kumar, Abhishek (author), Tighe, B.P. (author)Numerous soft materials jam into an amorphous solid at a high packing fraction. This nonequilibrium phase transition is best understood in a model system where particles repel when they overlap. Recently, however, it was shown that introducing any finite amount of attraction between particles changes the universality class of the transition....journal article 2020
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Kumar, Kavisha (author), Ledoux, H. (author), Schmidt, Richard (author), Verheij, Theo (author), Stoter, J.E. (author)This paper presents our implementation of a harmonized data model for noise simulations in the European Union (EU). Different noise assessment methods are used by different EU member states (MS) for estimating noise at local, regional, and national scales. These methods, along with the input data extracted from the national registers and...journal article 2020
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Cha, Hee Jeong (author), Hwang, Se Yeun (author), Lee, Da Som (author), Kumar, Akula Ravi (author), Kwon, Yong Uk (author), Voß, Moritz (author), Schuiten, Eva (author), Bornscheuer, Uwe T. (author), Hollmann, F. (author)Long-chain aliphatic amines such as (S,Z)-heptadec-9-en-7-amine and 9-aminoheptadecane were synthesized from ricinoleic acid and oleic acid, respectively, by whole-cell cascade reactions using the combination of an alcohol dehydrogenase (ADH) from Micrococcus luteus, an engineered amine transaminase from Vibrio fluvialis (Vf-ATA), and a...journal article 2020
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Liu, Z. (author), Hedayati, Pegah (author), Sudhölter, Ernst J. R. (author), Haaring, Robert (author), Shaik, A.R. (author), Kumar, N. (author)Adsorption behavior of surfactants to rock surfaces is an important issue in oil recovery, especially in the process of surfactant flooding. The surfactant loss through adsorption to rock surfaces makes such process economically less feasible. Here, we investigated the adsorption behavior of anionic surfactants (alcohol alkoxy sulfate, AAS)...journal article 2020
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Kumar, Siddhant (author), Tan, S. (author), Zheng, Li (author), Kochmann, Dennis M. (author)After a decade of periodic truss-, plate-, and shell-based architectures having dominated the design of metamaterials, we introduce the non-periodic class of spinodoid topologies. Inspired by natural self-assembly processes, spinodoid metamaterials are a close approximation of microstructures observed during spinodal phase separation. Their...journal article 2020
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Wei, L. (author), Kumar, Narendra (author), Haije, W.G. (author), Peltonen, Janne (author), Peurla, Markus (author), Grenman, L.O.H. (author), de Jong, W. (author)Zeolites 13X and 5A were modified with nickel and/or ruthenium for CO<sub>2</sub> methanation. The catalysts were prepared by evaporation impregnation and XRD, SEM-EDX, TEM, STEM-EDX, nitrogen physisorption, H<sub>2</sub>-TPR and NH<sub>3</sub>-TPD were used to characterize the physico-chemical properties of the catalysts. The physico...journal article 2020
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Jaiswal, Pankaj R (author), Kumar, R Iyer (author), Saeedifar, M. (author), Saleh, M. (author), Luyckx, Geert (author), Waele, W De (author)The increasing interest for the application of adhesive joints in naval superstructures motivates researchers to gain an in-depth understanding of the mechanical behaviour and failure mechanisms of these joints. This work reports on an experimental study of the deformation behaviour and damage evolution of a full-scale multi-material joint using...journal article 2020
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Flores, Raúl P. (author), Rijnsburger, S. (author), Horner-Devine, Alexander R. (author), Kumar, Nirnimesh (author), Souza, Alejandro J. (author), Pietrzak, J.D. (author)This study investigates the influence of tidal straining in the generation of turbidity maximum zones (TMZ), which are observed to extend for tens of kilometers along some shallow, open coastal seas. Idealized numerical simulations are conducted to reproduce the cross-shore dynamics and tidal straining in regions of freshwater influence ...journal article 2020
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Moktadir, Md Abdul (author), Kumar, Anil (author), Ali, Syed Mithun (author), Paul, Sanjoy Kumar (author), Sultana, Razia (author), Rezaei, J. (author)Eco-efficiency and resource optimization for business strategy and the environment can be achieved by the circular economy (CE) practices in supply chains (SCs). The leather industry is a significant industrial contributor to the economic growth of some countries, but at the same time, it leads to tremendous environmental pollution. This...journal article 2020
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Kumar, P. (author), Frouws, Jan (author), Langelaar, Matthijs (author)In various applications, design problems involving structures and compliant mechanisms experience fluidic pressure loads. During topology optimization of such design problems, these loads adapt their direction and location with the evolution of the design, which poses various challenges. A new density-based topology optimization approach...journal article 2020
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Kumar, P. (author), Rodrigo, Carmen (author), Gaspar, Francisco J. (author), Oosterlee, C.W. (author)We present a multilevel Monte Carlo (MLMC) method for the uncertainty quantification of variably saturated porous media flow that is modeled using the Richards equation. We propose a stochastic extension for the empirical models that are typically employed to close the Richards equations. This is achieved by treating the soil parameters in...journal article 2019