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Konings, L. (author), Kuipers, T. (author), Thepass, S. (author)Future conflicts will increasingly take place in complex, urban environments. This calls for a change from operating in large formations and from static encampments to dispersed, networked, decentralized and small-scale operations. Concept development for dispersed operations and their accompanying strategies has only just begun. To aid in this...conference paper 2022
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Gil Heras, M.L. (author), Cubillo Garcia, A. (author), Correcher Soriano, J. (author), Galan de la Haba, J.L. (author), le Roy-Naneix, J. (author), Kemkemian, S. (author), Thorsell, M. (author), Brandfass, M. (author), Brouard, P. (author), Boman, T. (author), Durst, S. (author), Nanni, A. (author), de Wit, J.J.M. (author), Calfa, U. (author), Salakis, M. (author)The project European active electronically scanned array with Combined Radar, Electronic Warfare (EW) and Communications (COMMs) functions for military applications, called CROWN, was launched in July 2021 under the European program of Preparatory Action for Defence Research (PADR) and Electromagnetic Spectrum Dominance Call. It responds to the...conference paper 2022
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- Scholtes, J.H.G. (author), de Koster, S.A.L. (author) conference paper 2022
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Chiscop, I. (author), Soro, F. (author), Smith, P. (author)Threat hunting and malware prediction are critical activities to ensure network and system security. These tasks are difficult due to increasing numbers of sophisticated malware families. Automatically detecting anomalous Domain Name System (DNS) queries in operational traffic facilitates the detection of new malware infections, significantly...conference paper 2022
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Dol, H.S. (author), Blom, K.C.H. (author), van Riet, M.W.G. (author), van de Sande, J.J.M. (author)Stand-off mine countermeasure (MCM) operations with unmanned systems frequently require user involvement for the interpretation of image data, for classification and identification, and for decision-making during mine disposal. As the transfer of image data usually requires tethering, this leads to cumbersome operating procedures. We have...conference paper 2022
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Peysakhovich, V. (author), Ledegang, W. (author), Houben, M. (author), Groen, E. (author)Eye movements analysis has great potential for understanding operator behaviour in many safety-critical domains, including aviation. In addition to traditional eye-tracking measures on pilots’ visual behavior, it seems promising to incorporate machine learning approaches to classify pilots’ visual scanning patterns. However, given the multitude...conference paper 2022
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Silvestri, F. (author), Feenstra, L.W. (author), Pettazzi, F. (author), Nijenhuis, J.R. (author), de Vreugd, J. (author), de Bruijn, D. (author), den Breeje, R. (author), Klop, W.A. (author), Ferrario, I. (author)High throughput optical satellite communication (SATCOM) systems need to rely on effective and robust technology to enable wavelength-division multiplexing (WDM) in a commercially viable way. The main challenge to implement WDM in optical feeder links deals with the multiplexing of high power channels. Currently the levels of power required for...conference paper 2022
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Wissingh, B. (author), Ravesteijn, D. (author), Schwartz, R.S. (author)This paper presents field trial results of two combined use cases with different QoS requirements: (1) a transport vertical Smart Junction use case; and (2) a healthcare vertical Paramedic Support use case. We focus on slicing prioritization configured in the RAN, at the gNB level, to guarantee QoS requirements for the combined use cases. We...conference paper 2022
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Xu, Q. (author), Hofmeyer, H. (author), Maljaars, J. (author), van Herpen, R.A.P. (author)This paper presents two full-scale fire resistance tests of sandwich panels with connections, to verify one way coupled fire-structure simulations. The heat transfer simulations agree well with the tests, however, the structural response simulations show some differences compared to the start of the first test, which is a sandwich panel façade....conference paper 2022
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Zhang, H. (author), Toh, Y. (author), Martin Soroa, I. (author), Morris, D. (author), Roukens, M.P. (author)The use of real-time video-audio and vital patient data significantly improves the effectiveness of remote assessment in emergencies, compared with the current audio-only prehospital communications. This was found during recently completed 5G trials, involving ambulance professionals. The aim of the trials was to investigate how 5G-enabled video...conference paper 2022
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Gärtner, T. (author), van den Boom, S.J. (author), Weerheijm, J. (author), Sluys, L.J. (author)Mechanical metamaterials are man-made materials which derive their unusual properties from the geometry of their microstructure rather than their constituents. Auxetic metamaterials (materials with a negative Poisson’s ratio) exhibit mechanical properties in the (quasi) static regime that are potentially promising for impact protection, given...conference paper 2022
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Dams, D. (author), Havelund, K. (author), Kauffman, S. (author)In runtime verification, a monitor is used to return a Boolean verdict on the behavior of a system. We present several exaniples of the use of monitors to instead document system behavior. In doing so, we demonstrate how runtime verification can be combined with techniques from data science to provide novel forms of program analysis.conference paper 2022
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Pereboom, H.P. (author), Klinkenberg, A. (author), Belfroid, S.P.C. (author), Orre, S. (author)Multiphase flow through pipelines can result in severe pipe vibrations and fatigue damage. Commonly, finite element analyses are used to define the dynamic pipe stresses and calculate the lifetime of the piping. The fluid flow excitation forces can be estimated with analytical models or simulated in detail using computational fluid dynamics. If...conference paper 2022
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Belfroid, S.P.C. (author), González Díez, N. (author), Lunde, K. (author), Orre, S. (author)Three experimental campaigns were done at an industrial-scale test site to measure the influence of pressure on the forces induced by multiphase flow in process piping. For these different campaigns, measurements were done at 10, 25, 45 and 80 bar, involving different fluids (natural gas, MEG, oil, CO2) and different orientation of the test...conference paper 2022
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Belfroid, S.P.C. (author), Orre, S. (author), Bazuin, R. (author), Lunde, K. (author)In CO2 storage plants, internal multiphase flow of CO2 may occur in piping elements in various parts of the process. From the energy and process industries, it is known that multiphase flow can induce high amplitude vibrations, especially in flexible piping. In the last decade, experimental data sets and results from excitation spectrum...conference paper 2022
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Pereboom, H.P. (author), Belfroid, S.P.C. (author)Multiphase flow is a known source of vibrations in piping systems. Multiple experimental campaigns have focused on the force spectrum on horizontal bend systems. To evaluate the evolution of multiphase forces through a vertical loop, experiments have been done on an air-water, two inch pipe system consisting of four bends at near-atmospheric...conference paper 2022
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Sahoo, A. (author)As the demand for renewable energy increases, wind turbine rotors will become larger with slender blades. Vortex Generators (VGs) are one of the most common methods of passive flow control to avoid flow separation and loading on the root section of slender blades due to their simplicity, inexpensiveness, and the ability to retrofit them to...conference paper 2022
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Agugiaro, G. (author), Zwamborn, A. (author), Tigchelaar, C. (author), Matthijssen, E. (author), León-Sánchez, C. (author), van der Molen, F. (author), Stoter, J. (author)In the last 15 years semantic 3D city models have seen a steady growth in terms of creation and adoption. Many cities world-wide have now at least one city model which can be used for several applications. Energy- and sustainability-related topics are among those that have experienced a noteworthy increase of interest from the Geomatics...conference paper 2022
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Borsboom, W.A. (author), Kornaat, W. (author), van der Linden, R. (author), Eslami Mossallam, B. (author), de Gids, W. (author)Control of HVAC systems may reduce congestion of the electricity grid on district level by shifting energy demand of buildings and increase the self-consumption of local photovoltaic energy. To achieve an optimal control of ventilation, occupant behaviour should be taken into account. To describe occupant behaviour, usually black box models are...conference paper 2022
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Saravanan, A. (author), Tsfasman, A. (author), Neerincx, M.A. (author), Oertel, C. (author)In ongoing and consecutive conversations with persons, a social robot has to determine which aspects to remember and how to address them in the conversation. In the health domain, important aspects concern the health-related goals, the experienced progress (expressed sentiment) and the ongoing motivation to pursue them. Despite the progress in...conference paper 2022