Searched for: collection%3Air
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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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Augusto da Silva, F. (author), Bagbaba, Ahmet Cagri (author), Hamdioui, S. (author), Sauer, Christian (author)
The development of Integrated Circuits for the Automotive sector imposes on complex challenges. ISO26262 Functional Safety requirements entail extensive Fault Injection campaigns and complex analysis for the evaluation of deployed Software Tools. This paper proposes a methodology to improve Fault Analysis Tools Confidence Level (TCL) by...
conference paper 2020
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Papachristos, George (author), van de Kaa, G. (author)
Standards competition is a complicated process influenced by a large number of factors and mechanisms. This article develops a simulation model that draws on current theory of standards competition dynamics and represents the interplay of strategic factors that firms can use to gain a competitive advantage. The model is used to reproduce four...
journal article 2020
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Anand, C. (author), Groves, R.M. (author), Shroff, S. (author), Benedictus, R. (author)
In this paper we ultrasonic signals from array transducers are simulated using the Thompson and Gray measurement model. The measurement model consists of a beam model, a system efficiency factor which characterizes the response of the electro-mechanical and electrical components of the system, and a flaw scattering model. To inspect layered...
conference paper 2020
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Petitfrere, Martin (author), Nichita, Dan Vladimir (author), Voskov, D.V. (author), Zaydullin, Rustem (author), Bogdanov, Igor (author)
Several compositional reservoir simulators based on equations of state (EoS) have been designed. Yet, few of them can deal with thermal processes such as steam injection and no fully compositional thermal simulation of the steam injection process has been proposed with extra-heavy oils yet. Those simulations appear essential and will offer...
journal article 2020
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Augusto da Silva, F. (author), Bagbaba, Ahmet Cagri (author), Sartoni, Sandro (author), Cantoro, Riccardo (author), Reorda, Matteo Sonza (author), Hamdioui, S. (author), Sauer, Christian (author)
The development of Integrated Circuits for the Automotive sector imposes on major challenges. ISO26262 compliance, as part of this process, entails complex analysis for the evaluation of potential random hardware faults. This paper proposes a systematic approach to identify faults that do not disrupt safety-critical functionalities and...
conference paper 2020
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Ganni, S. (author), Li, M. (author), Botden, Sanne M.B.I. (author), Nayak, Samir Ranjan (author), Ganni, Bhaskar Rao (author), Rutkowski, Anne Francoise (author), Goossens, R.H.M. (author), Jakimowicz, J.J. (author)
Virtual reality (VR) training is widely used in several minimal invasive surgery (MIS) training curricula for procedural training. However, VR training in its current state lack immersive training environments, such as using head-mounted displays that is implemented in military or aviation training and even entertainment. The virtual...
journal article 2020
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De Klerk, Rick (author), Vegter, Riemer Jakobs K. (author), Goosey-Tolfrey, Vicky L. (author), Mason, Barry S. (author), Lenton, John P. (author), Veeger, H.E.J. (author), van der Woude, L.H.V. (author)
There are many ways to simulate handrim wheelchair propulsion in the laboratory. Ideally, these would be able to, at least mechanically, simulate field conditions. This narrative review provides an overview of the lab-based equipment used in published research and critically assesses their ability to simulate and measure wheelchair propulsion...
journal article 2020
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Britto Maria, Rodrigo (author), de Freitas Leal, Marcus (author), Sousa Junior, Edgard (author), Leite Lemos, Vinicius (author), Magalhães Cardoso, Patrick (author), de Oliveira, Leonardo Cosme (author), Castro, Saullo G.P. (author), de Lima Marcolin, Marcelo (author), Joshi, Darshan (author)
Aircraft structural analysis is a process that involves several engineers working concurrently to analyze in detail all structural elements of an airframe, as well as the behavior of the aircraft structure as a whole. The airframe has to be decomposed in its major components such as fuselage sections, wings and control surfaces to allow the...
journal article 2019
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Landman, H.M. (author)
After several recent flight safety events, such as the accident of Air France flight 447 in 2009, investigators determined that surprise and startle can severely disrupt pilot responses. They concluded that pilots need to be better prepared for unexpected and potentially startling situations. In response, aviation safety authorities have...
doctoral thesis 2019
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Bruijn, Willem E.L. (author), Rip, Jolien (author), Hendriks, Antoon J.H. (author), van Gelder, P.H.A.J.M. (author), Jonkman, Sebastiaan N. (author)
A marine project consists of series of operations, with each operation subject to a predefined operational limit and duration. If actual weather conditions exceed the operational limit, the operation cannot be executed and hence downtime occurs. An accurate assessment of uncertainties and the expected downtime during a marine project is...
journal article 2019
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Garcia-Nieto, Sergio (author), Velasco-Carrau, Jesus (author), Paredes Valles, F. (author), Salcedo, Jose Vicente (author), Simarro, Raul (author)
This paper gathers the design and implementation of the control system that allows an unmanned Flying-wing to perform a Vertical Take-Off and Landing (VTOL) maneuver using two tilting rotors (Bi-Rotor). Unmanned Aerial Vehicles (UAVs) operating in this configuration are also categorized as Hybrid UAVs due to their ability of having a dual...
journal article 2019
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Urbano Merino, J. (author), De Lima, H.A. (author), Hanjalic, A. (author)
Statistical significance testing is widely accepted as a means to assess how well a difference in effectiveness reflects an actual difference between systems, as opposed to random noise because of the selection of topics. According to recent surveys on SIGIR, CIKM, ECIR and TOIS papers, the t-test is the most popular choice among IR researchers....
conference paper 2019
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Veitch, D.E. (author), Bochner, Melissa (author), Molenbroek, J.F.M. (author), Goossens, R.H.M. (author), Owen, Harry (author)
Introduction There is still a need for competent breast lump detection palpation skills, especially in developing countries. Our goal is to design, develop, and establish a test to determine whether students can, by touch alone, identify and discriminate between a range of different simulated lesions at different adiposity levels. Methods...
journal article 2019
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Morrison, A.R.T. (author), van Beusekom, Vincent (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), Vlugt, T.J.H. (author), de Jong, W. (author)
In this work a model of an elevated pressure CO<sub>2</sub> electrolyzer producing primarily formate or formic acid is presented. It consists of three parts: A model of the bulk electrolyte, the diffusion layer, and the electrode surface. Data from the literature was used to validate both the bulk portion of the model, as well as the overall...
journal article 2019
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Gao, P. (author), Ye, G. (author), Wei, J. (author), Yu, Q. (author)
The HYMOSTRUC3D model has been used successfully to predict hydration and microstructure development of pure Portland cement paste. In recent years, a number of numerical models were proposed for optimizing the use of supplementary cementitious materials. Also HYMOSTRUC3D was extended for simulating the hydration and microstructure development...
journal article 2019
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Kuipers, Derek A. (author), Terlouw, Gijs (author), Wartena, B.O. (author), Prins, Jelle T. (author), Pierie, Jean Pierrre E.N. (author)
High fidelity is regarded as a hallmark of educational games and simulations for health education. Mainly physical and functional fidelity are associated with authenticity, resulting in the pursuit of a true-to-life simulation and suggesting the imposition of a generally accepted and often unintentional design rationale that assumes that the...
journal article 2019
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IJgosse, Wouter M. (author), Leijte, Erik (author), Ganni, S. (author), Luursema, Jan Maarten (author), Francis, Nader K. (author), Jakimowicz, Jack J. (author), Botden, Sanne M.B.I. (author)
Background: Laparoscopic suturing can be technically challenging and requires extensive training to achieve competency. To date no specific and objective assessment method for laparoscopic suturing and knot tying is available that can guide training and monitor performance in these complex surgical skills. In this study we aimed to develop a...
journal article 2019
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Klein, Patrick (author), van der Vegte, Wilhelm Frederik (author), Hribernik, Karl (author), Klaus-Dieter, Thoben (author)
By applying data analytics to product usage information (PUI) from combinations of different channels, companies can get a more complete picture of their products' and services' Mid-Of-Life. All data, which is gathered within the usage phase of a product and which relates to a more comprehensive understanding of the usability of the product...
journal article 2019
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Saffarionpour, S. (author), de Jong, Tessa F. (author), van der Wielen, L.A.M. (author), Brouwer, Eric (author), Ottens, M. (author)
For simulating an adsorption/elution step for separation and recovery of flavor-active esters in beer in the presence of ethanol at various temperatures, and validating the predicted breakthrough behavior, equilibrium data on concentration of each ester is required. This work evaluates the application of frontal analysis method (FA) for...
journal article 2019
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