Searched for: collection%3Air
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Koirala, B.P. (author), Araghi, Y. (author), Kroesen, M. (author), Ghorbani, A. (author), Hakvoort, R.A. (author), Herder, P.M. (author)

In order to decarbonize the energy sector, there is a widespread consensus that the role of end-users in the energy system should change from passive consumption to active prosumption and engagement. This is of particular importance as an increasing number of technologies and business models are focusing on the end-users. These developments...

journal article 2018
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Smeur, E.J.J. (author), de Croon, G.C.H.E. (author), Chu, Q. (author)

This paper presents the cascaded integration of Incremental Nonlinear Dynamic Inversion (INDI) for attitude control and INDI for position control of micro air vehicles. Significant improvements over a traditional Proportional Integral Derivative (PID) controller are demonstrated in an experiment where the quadrotor flies in and out of a 10 m...

journal article 2018
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Chavarrias Borras, V. (author), Stecca, G. (author), Blom, A. (author)

In this paper we analyze the Hirano active layer model used in mixed sediment river morphodynamics concerning its ill-posedness. Ill-posedness causes the solution to be unstable to short-wave perturbations. This implies that the solution presents spurious oscillations, the amplitude of which depends on the domain discretization. Ill-posedness...

journal article 2018
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Avhad, Mangesh R. (author), Gangurde, L.S. (author), Sánchez, Marcos (author), Bouaid, Abderrahim (author), Aracil, José (author), Martínez, Mercedes (author), Marchetti, Jorge M. (author)

The present article demonstrates a superior catalytic performance of glycerol-enriched calcium oxide for biodiesel production than other calcium-based counterparts. The proficiency of glycerol-enriched calcium oxide in catalyzing the methanolysis of crude Jatropha curcas oil containing high free fatty acids content was systematically...

journal article 2018
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Fauchille, A. L. (author), van den Eijnden, A.P. (author), Ma, L. (author), Chandler, M. (author), Taylor, K. G. (author), Madi, K. (author), Lee, P. D. (author), Rutter, E. (author)

The microstructure of a highly laminated Lower Bowland Shale sample is characterized at the micron-to millimeter scale, to investigate how such characterization can be utilized for microstructure-based modelling of the shale's geomechanical behavior. A mosaic of scanning electron microscope (SEM) back-scattered electron (BSE) images was...

journal article 2018
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Zhang, Y. (author), Zhang, M. (author), Ye, G. (author)

Experiments have been carried out to study the influence of moisture condition, including moisture content and its distribution, on the chloride diffusion in partially saturated ordinary Portland cement mortar. The mortar samples with water-to-cement (w/c) ratios of 0.4, 0.5 and 0.6, cured for 1 year, were preconditioned to uniform water...

journal article 2018
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Huang, Ping Ping (author), Wu, Patrick (author), van der Wal, W. (author)

It has been argued that viscous dissipation from mantle flow in response to surface loading during glacial cycles can result in short-term heating and thus trigger transient volcanism or changes in mantle properties, which may in turn affect mantle dynamics. Furthermore, heating near the Earth's surface can also affect the stability of ice...

journal article 2018
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Schmack, T. (author), Morgado Martins Filipe, T.M. (author), Deinzer, G. (author), Kassapoglou, C. (author), Walther, F. (author)

The usage of fibre-reinforced composites in automotive body structures is still a rarity. The main goal in body structure development is to design lightweight structures as cost-efficient as possible. This research contributes to the approach of maximal material usage by considering the strength increase of a carbon-epoxy laminate with...

journal article 2018
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Sciacchitano, A. (author), Schneiders, J.F.G. (author), Scarano, F. (author)

A novel approach to the measurement of large-scale complex aerodynamic flows is presented, based on the combination of coaxial volumetric velocimetry and robotics. Volumetric flow field measurements are obtained to determine the time-averaged properties of the velocity field developing around a three-dimensional full-scale reproduction of a...

journal article 2018
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Lu, X. (author), Chen, B. Y. (author), Tan, V. B.C. (author), Tay, T. E. (author)

A three-dimensional separable cohesive element (SCE) is proposed to enable the modelling of interaction between matrix cracking and interfacial delamination in laminated fibre-reinforced composite materials. It is demonstrated that traditional cohesive elements are incapable of modelling the coupled failure mechanisms accurately if...

journal article 2018
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Stocchi, Paolo (author), Vacchi, Matteo (author), Lorscheid, Thomas (author), de Boer, Bas (author), Simms, Alexander R. (author), van de Wal, Roderik S W (author), Vermeersen, L.L.A. (author), Pappalardo, Marta (author), Rovere, Alessio (author)

Sea-level indicators dated to the Last Interglacial, or Marine Isotope Stage (MIS) 5e, have a twofold value. First, they can be used to constrain the melting of Greenland and Antarctic Ice Sheets in response to global warming scenarios. Second, they can be used to calculate the vertical crustal rates at active margins. For both applications,...

journal article 2018
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Bomers, A. (author), Aguilar Lopez, J.P. (author), Warmink, JJ (author), Hulscher, Suzanne J.M.H. (author)

Structures integrated in a grass-covered dike may increase erosion development. Currently, safety assessment methods for flood defences are only applicable for a conventional grass-covered dike and the effects of structures on dike cover erosion are poorly understood. Since many dikes have a road on top, it is important to study the effect of...

journal article 2018
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Jaxa-Rozen, M. (author), Kwakkel, J.H. (author)

Methods for testing and analyzing agent-based models have drawn increasing attention in the literature, in the context of efforts to establish standard frameworks for the development and documentation of models. This process can benefit from the use of established software environments for data analysis and visualization. For instance, the...

journal article 2018
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Roeser, S. (author), Alfano, V.R. (author), Nevejan, Caroline (author)

In this article, we explore the role that art can play in ethical reflection on risky and controversial technologies. New technologies often give rise to societal controversies about their potential risks and benefits. Over the last decades, social scientists, psychologists, and philosophers have criticized quantitative approaches to risk on...

journal article 2018
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Zhou, Zeng (author), Coco, Giovanni (author), Townend, Ian (author), Gong, Zheng (author), Wang, Zhengbing (author), Zhang, Changkuan (author)
Simple stability relationships are practically useful to provide a rapid assessment of coastal and estuarine landforms in response to human interventions and long‐term climate change. In this contribution, we review a variety of simple stability relationships which are based on the analysis of tidal asymmetry (shortened to “TA”). Most of the...
journal article 2018
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Xiong, Lichun (author), de Jong, W.M. (author), Wang, Fengting (author), Cheng, Baodong (author), Yu, Chang (author)

Promoting the rise of Central China is one of the most important national strategies regarding the promotion of China's economic development. However, the environmental issues in the central regions have become remarkably severe. It is therefore worthwhile exploring how economic development and environmental protection can be coordinated....

journal article 2018
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Kuck, Alexander (author), Stegeman, Dick F. (author), van der Kooij, H. (author), Van Asseldonk, Edwin H.F. (author)

Trans-spinal direct current stimulation (tsDCS) is an electro-modulatory tool with possible application in the rehabilitation of spinal cord injury. TsDCS generates a small electric field, aiming to induce lasting, functional neuromodulation in the targeted neuronal networks. Earlier studies have shown significant modulatory effects after...

journal article 2018
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Mountakis, Kiriakos Simon (author)
The research presented in this thesis is part of the Rolling Stock Life Cycle Logistics applied research and development program, conducted by NedTrain. As a company, NedTrain belongs to Nederlandse Spoorwegen (NS; the principal railway company in the Netherlands) and provides maintenance services for the NS train-fleet. The aim of this program...
doctoral thesis 2018
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Smets, P.S.M. (author)
Infrasound is low-frequency inaudible sound (< 20Hz), used as a waveform verification technique for the Comprehensive Nuclear-Test-Ban Treaty (CTBT). In this thesis, it is shown that infrasound can provide useful additional upper atmospheric observations in a region where data coverage is sparse; beyond the middle stratosphere direct...
doctoral thesis 2018
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Goudar, M.V. (author), Elsinga, G.E. (author)

The motion of tracer particles is kinematically simulated around three elementary flow patterns; a Burgers vortex, a shear-layer structure with coincident vortices and a node-saddle topology. These patterns are representative for their broader class of coherent structures in turbulence. Therefore, examining the dispersion in these elementary...

journal article 2018
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