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Liu, J. (author), Isufi, E. (author), Leus, G.J.T. (author)In graph signal processing, signals are processed by explicitly taking into account their underlying structure, which is generally characterized by a graph. In this field, graph filters play a major role to process such signals in the so-called graph frequency domain. In this paper, we focus on the design of autoregressive moving average ...conference paper 2018
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Boersma, S. (author), Rostampour, Vahab (author), Doekemeijer, B.M. (author), van Geest, W.J.M. (author), van Wingerden, J.W. (author)The objective of active power control in wind farms is to provide ancillary grid services. Improving this is vital for a smooth wind energy penetration in the energy market. One of these services is to track a power reference signal with a wind farm by dynamically de- and uprating the turbines. In this paper we present a computationally...conference paper 2018
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Coutino, Mario (author), Chepuri, S.P. (author), Leus, G.J.T. (author)In this paper, we propose sensor selection strategies, based on convex and greedy approaches, for designing sparse samplers for composite detection. Particularly, we focus our attention on sparse samplers for matched subspace detectors. Differently from previous works, that mostly rely on random matrices to perform compression of the sub...conference paper 2018
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Fu, W. (author), van Paassen, M.M. (author), Mulder, Max (author)Abstract—Just notable difference (JND) thresholds for the perception of manipulator dynamic properties are relevant for tele-operation and simulation of vehicles. Manipulator dynamic properties are characterized by multiple variables (describing mass, spring and damping for a linear manipulator) and the JND threshold for any of these variables...conference paper 2018
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Comes, M. (author), Bergtora Sandvik, Kristin (author), van de Walle, B.A. (author)Purpose: The purpose of this paper is to analyze how far technology and information enable, facilitate or support the planning and implementation decisions in humanitarian vaccine cold chains for vaccination campaigns. The authors specifically focus on three emerging technologies that have the potential to create more flexible conditions in...journal article 2018
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Picek, Oliver (author), Schröder, E. (author)We use data from the World Input-Output Database to fit a closed multiregional input-output model in order to estimate the size of spillover effects of Germany's final demand on GDP, employment and the trade balance in Southern European countries. We find that spillover effects are rather small. Germany alone will hardly make a significant...journal article 2018
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Guo, Leicheng (author), Su, Ni (author), Zhu, C. (author), He, Qing (author)Streamflow and sediment loads undergo remarkable changes in worldwide rivers in response to climatic changes and human interferences. Understanding their variability and the causes is of vital importance regarding river management. With respect to the Changjiang River (CJR), one of the largest river systems on earth, we provide a...journal article 2018
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Yang, Y. (author), Knol, Marius (author), van Keulen, A. (author), Ayas, C. (author)Selective laser melting (SLM) wherein a metal part is built in a layer-by-layer manner in a powder bed is a promising and versatile way for manufacturing components with complex geometry. However, components built by SLM suffer from substantial deformation of the part and residual stresses. Residual stresses arise due to temperature gradients...journal article 2018
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Vallaeys, Valentin (author), Kärnä, Tuomas (author), Delandmeter, Philippe (author), Lambrechts, Jonathan (author), Baptista, António M. (author), Deleersnijder, E.L.C. (author), Hanert, Emmanuel (author)The Columbia River (CR) estuary is characterized by high river discharge and strong tides that generate high velocity flows and sharp density gradients. Its dynamics strongly affects the coastal ocean circulation. Tidal straining in turn modulates the stratification in the estuary. Simulating the hydrodynamics of the CR estuary and plume...journal article 2018
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Rezaei, J. (author), Ortt, J.R. (author), Trott, Paul (author)Purpose: The purpose of this paper is to examine high-tech small-to-medium-sized enterprises (SMEs) supply chain partnerships. Partnerships are considered at the level of business function rather than the entire organisation. Second, the drivers of SMEs to engage in partnerships are assessed to see whether functions engage in partnerships for...journal article 2018
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Wu, Jibing (author), Yu, Lianfei (author), Zhang, Qun (author), Shi, P. (author), Liu, Lihua (author), Deng, Su (author), Huang, Hongbin (author)The heterogeneous information networks are omnipresent in real-world applications, which consist of multiple types of objects with various rich semantic meaningful links among them. Community discovery is an effective method to extract the hidden structures in networks. Usually, heterogeneous information networks are time-evolving, whose objects...journal article 2018
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Park Lee, E.H. (author), Lukszo, Z. (author), Herder, P.M. (author)Fuel cell electric vehicles (FCEVs) have the potential to be used as flexible power plants in future energy systems. To integrate FCEVs through vehicle-to-grid (V2G), agreements are needed between the FCEV owners and the actor that coordinates V2G on behalf of them, usually considered the aggregator. In this paper, we argue that, depending on...journal article 2018
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Janssens, B. (author)Generalised spin structures describe spinor fields that are coupled to both general relativity and gauge theory. We classify those generalised spin structures for which the corresponding fields admit an infinitesimal action of the space–time diffeomorphism group. This can be seen as a refinement of the classification of generalised spin...journal article 2018
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Delandmeter, Philippe (author), Lambrechts, Jonathan (author), Legat, Vincent (author), Vallaeys, Valentin (author), Naithani, Jaya (author), Thiery, Wim (author), Remade, Jean-François (author), Deleersnijder, E.L.C. (author)The discontinuous Galerkin (DG) finite element method is well suited for the modelling, with a relatively small number of elements, of three-dimensional flows exhibiting strong velocity or density gradients. Its performance can be highly enhanced by having recourse to r-adaptivity. Here, a vertical adaptive mesh method is developed for DG finite...journal article 2018
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Moreira Arouche, M. (author), Budhe, S. (author), Alves, L. A. (author), Teixeira De Freitas, S. (author), Banea, M.D. (author), de Barros, S. (author)In this work, an experimental study has been carried out to evaluate the effect of salt water condition on the long-term adhesion of composite-to-metal bonded joints using peel tests. A new test configuration is tested via fully and partially immersed specimens with 500 mm length. Fracture surfaces of non-aged samples exhibited a cohesive...journal article 2018
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Moreira Arouche, M. (author), Budhe, Sandip (author), Banea, Mariana D. (author), Teixeira De Freitas, S. (author), de Barros, Silvio (author)The aim of this study is to assess the interlaminar adhesion of carbon-epoxy laminates under salt water condition. Carbon-epoxy laminate specimens were immersed in a salt water tank for 60 days. Some specimens were then dried at<br/>room temperature for 280 days, until recovering their initial weight. Specimens were tested using the composite...journal article 2018
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Naglic, M. (author), Popov, M. (author), van der Meijden, M.A.M.M. (author), Terzija, Vladimir (author)Electrical power system monitoring, protection, operation, and control schemes are undergoing significant changes toward the next generation fully automated, resilient, and self-healing grids. At present, there still exists a lack of available user-friendly tools for the synchronized measurement technology supported application design. This...journal article 2018
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Akter, S. (author), Makinwa, K.A.A. (author), Bult, K. (author)This paper presents a new dynamic residue amplifier topology for pipelined analog-to-digital converters. With an input signal of 100 mV<sub>pp,diff</sub> and 4 × gain, it achieves-100-dB total harmonic distortion, the lowest ever reported for a dynamic amplifier. Compared to the state of the art, it exhibits 25 dB better linearity with twice...journal article 2018
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Raiola, M. (author), Discetti, Stefano (author), Ianiro, A. (author), Samara, F. (author), Avallone, F. (author), Ragni, D. (author)This study focuses on an active strategy for unsteady-load control by means of a trailing-edge flap. Experiments on a 2D pitching and heaving NACA 0018 airfoil with an actuated trailing-edge flap are performed at a reduced frequency κ = 0.1 in a free-stream flow with Re = 1.3 × 10<sup>5</sup>. The model is equipped with 24 differential...journal article 2018
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Waasdorp, R. (author), van den Heuvel, Oscar (author), Versluis, Floyd (author), Hajee, Bram (author), Ghatkesar, M.K. (author)Desktop inkjet printers are ubiquitous and relatively inexpensive among the variety of available printers. These inkjet printers use an array of micro fluidic pumps, nozzles based on piezoelectric actuation, to dispense individual picoliter volume ink droplets at high speed. In this paper, we show that individual pumps in desktop printers can be...journal article 2018