Searched for: collection%3Air
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Hegde, Maruti (author), Yang, Lin (author), Vita, Francesco (author), Fox, Ryan J. (author), van de Watering, R. (author), Norder, B. (author), Lafont, Ugo (author), Francescangeli, Oriano (author), Madsen, Louis A. (author), Picken, S.J. (author), Samulski, Edward T. (author), Dingemans, Theo J. (author)
Combining polymers with small amounts of stiff carbon-based nanofillers such as graphene or graphene oxide is expected to yield low-density nanocomposites with exceptional mechanical properties. However, such nanocomposites have remained elusive because of incompatibilities between fillers and polymers that are further compounded by...
journal article 2020
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Schophuizen, M.J.F. (author), Kalz, Marco (author)
Understanding the process of initiation, design, implementation and embedding of educational innovations in higher education is necessary to develop better strategies for sustainable, large-scale educational innovation. Often early initiated educational innovation projects are not evaluated well enough, making it hard to identify lessons...
journal article 2020
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de Gouw, Joost A. (author), Veefkind, j. Pepijn (author), Roosenbrand, Esther (author), Dix, Barbara (author), Lin, John C. (author), Landgraf, Jochen (author), Levelt, Pieternel Felicitas (author)
Production of oil and natural gas in North America is at an all-time high due to the development and use of horizontal drilling and hydraulic fracturing. Methane emissions associated with this industrial activity are a concern because of the contribution to climate radiative forcing. We present new measurements from the space-based...
journal article 2020
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van der Tuin, M.S. (author), Pel, A.J. (author)
Transport infrastructure owners are moving from reactive toward proactive infrastructure management. This involves computation of costs associated with failure or maintenance, including expected transport delays. These delays are often computed by multiplying additional travel time by the number of travellers. However, this does not reflect...
journal article 2020
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Varon, Carolina (author), Lázaro, Jesús (author), Orini, Michele (author), Deviaene, Margot (author), Kontaxis, Spyridon (author), Testelmans, Dries (author), Buyse, Bertien (author), Borzée, Pascal (author), Sörnmo, Leif (author)
Cardiorespiratory monitoring is crucial for the diagnosis and management of multiple conditions such as stress and sleep disorders. Therefore, the development of ambulatory systems providing continuous, comfortable, and inexpensive means for monitoring represents an important research topic. Several techniques have been proposed in the...
journal article 2020
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Gong, J. (author), Flores Martinez, Wendy (author), Vincent-Bonnieu, S.Y.F. (author), Kamarul Bahrim, Ridhwan Zhafri (author), Che Mamat, Che A.Nasser Bakri (author), Tewari, Raj Deo (author), Mahamad Amir, Mohammad Iqbal (author), Farajzadeh, R. (author), Rossen, W.R. (author)
Surfactant-alternating-gas (SAG) is a preferred method of foam injection, which is a promising means of enhanced oil recovery. Liquid injectivity in a SAG process is commonly problematic. Our previous studies suggest that the liquid injectivity can be better than expected due to the existence of a collapsed-foam region formed during the gas...
journal article 2020
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Lee, J. (author), Mitici, M.A. (author)
Aircraft maintenance is key for safe and efficient aircraft operations. While most studies propose cost-efficient maintenance strategies, the safety and efficiency of these strategies need to be quantified. This paper proposes a formal framework to assess the safety and efficiency of maintenance strategies by means of agent-based modelling,...
journal article 2020
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Chanteli, Angeliki (author), Bandaru, Aswani Kumar (author), Peeters, D.M.J. (author), O'Higgins, Ronan M. (author), Weaver, Paul M. (author)
Laser-assisted automated tape placement (LATP) in-situ consolidation of thermoplastic composites offers an efficient solution for production of large, high performance composite structures. The present work investigates laser repass treatment as a method of enhancing surface roughness and mechanical properties of LATP processed CF/PEEK...
journal article 2020
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Habben Jansen, A.C. (author)
Naval ships are designed to operate in hostile environments. As such, vulnerability reduction is an important aspect that needs to be assessed during the design. With the increased interest in electrification and automation on board naval ships, the vulnerability of distributed systems has become a major topic of interest. However, assessing...
doctoral thesis 2020
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Iannarelli, A. (author), Ghaffarian Niasar, M. (author), Ross, Robert (author)
Dielectric elastomer actuators (DEAs) are a class of electrostatic actuators that have promising applications in fields like sensors, soft-robotics, microfluidics, and energy harvesting. The crucial points in the working principle of DEA are the application of high electric field and the use of compliant electrodes. These electrodes are...
journal article 2020
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Nokhbatolfoghahai, A. (author), Navazi, H. M. (author), Groves, R.M. (author)
In this paper, the hybrid Delay-And-Sum (DAS) with Sparse Reconstruction (SR) method was further developed for damage location in composite plates. In composite materials, anisotropy leads to some challenges in using conventional damage location methods, which are developed for isotropic materials. In the hybrid DAS-SR method, the DAS and SR...
journal article 2020
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Jafari Eshlaghi, M. (author), D'haese, A. (author), Zlopaša, J. (author), Cornelissen, E. R. (author), Vrouwenvelder, J.S. (author), Verbeken, K. (author), Verliefde, A. (author), van Loosdrecht, Mark C.M. (author), Picioreanu, C. (author)
Chemical cleaning is vital for the optimal operation of membrane systems. Membrane chemical cleaning protocols are often developed in the laboratory flow cells (e.g., Membrane Fouling Simulator (MFS)) using synthetic feed water (nutrient excess) and short experimental time of typically days. However, full-scale Reverse Osmosis (RO) membranes...
journal article 2020
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Yürüşen, Nurseda Y. (author), Rowley, Paul N. (author), Watson, S.J. (author), Melero, Julio J. (author)
While many operation and maintenance (O&M) decision support systems (DSS) have been already proposed, a serious research need still exists for wind farm O&M scheduling. O&M planning is a challenging task, as maintenance teams must follow specific procedures when performing their service, which requires working at height in adverse...
journal article 2020
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Eleftheroglou, N. (author), Zarouchas, D. (author), Benedictus, R. (author)
Data driven probabilistic methodologies have found increasing use the last decade and provide a platform for the remaining useful life (RUL) prediction of composite structures utilizing health-monitoring data. Of particular interest is the RUL prediction of composite structures that either underperform or outperform due to unexpected...
journal article 2020
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Chrysochoidis-Antsos, N. (author), Vilarasau Amoros, A. (author), van Bussel, G.J.W. (author), Mertens, S. (author), van Wijk, A.J.M. (author)
This paper assesses wind resource characteristics and energy yield for micro wind turbines integrated on noise barriers. An experimental set-up with sonic anemometers placed on top of the barrier in reference positions is realized. The effect on wind speed magnitude, inflow angle and turbulence intensity is analysed. The annual energy yield...
journal article 2020
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Vittorietti, M. (author)
This thesis aims at the development of physical relations between the intricate 3D features of metallic microstructures and the mechanical properties of the material. For understanding which are the microstructural determinants of the resultingmechanical behaviour of metals, a deep quantitative characterisation of the microstructure is needed....
doctoral thesis 2020
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Hinz, J.P. (author)
The aim of this dissertation is to introduce the concept of PDE-based parameterization using Isogeometric Analysis (IGA) techniques and to present first results. IGA is a numerical technique that employs the spline- and NURBS-based geometric modeling tools of Computer Aided Geometric Design (CAGD) as a basis for numerical simulation using the...
doctoral thesis 2020
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Moreno Wandurraga, S.H. (author)
Plasma reactors emerge as a promising alternative to cope with some of the biggest challenges currently faced by humanity, the global warming, the increasing global energy demand and the need for efficient storage of electricity from renewable energy sources. Plasma reactors have the potential to enable the storage of green renewable electricity...
doctoral thesis 2020
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van den Boomen, M. (author)
Ageing infrastructures and shortage of financing induce the need for optimising public infrastructure replacements. From an economic perspective, classical net present value comparison is traditionally the method of choice to decide on investments and replacements. The current research observes that typical infrastructure related features make...
doctoral thesis 2020
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Methenitis, G. (author)
Electricity consumption is highly correlated with the level of human development,<br/>which alongside electrification is expected to significantly increase global demand<br/>for electricity in the coming decades. In current electricity systems, most of the electricity is generated by large fossil-fuel power plants on-demand and it is distributed...
doctoral thesis 2020
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