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Pletzer, Johannes (author)At speeds roughly between five and ten thousand km/h, hypersonic aircraft offer the promise of an extremely fast means of transport. Growing concerns about climate warming, however, direct attention to sustainability. This thesis focuses on atmospheric composition and radiation changes by considering a range of individual hypersonic aircraft...doctoral thesis 2024
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Sarda, Lise (author)'Sheltering the Mountains' investigates and discusses the relationship between humans and the natural environment through the lens of high-altitude architecture. Focusing on a specific period from the 17th century to the present day, the research traces the development of architectural techniques used in extreme environments and analyses how...student report 2023
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LIU, YUSHAN (author)Antarctica plays a crucial role in global climate change research, but current models only extend back to the satellite era from the 1990s to the present, leaving significant gaps in our understanding of the continent’s past and covering only limited locations. Historical aerial surveys, which may extend back to the 1930s and cover more...student report 2023
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Völker, Willem (author)Recent research on the Flying V - a flying-wing long-range passenger aircraft - shows that its airframe design is 25% more aerodynamically efficient than a conventional tube-and-wing airframe. The Flying V is therefore a promising contribution towards reduction in climate impact of long-haul flights. However, some design aspects of the Flying V...master thesis 2022
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Simionato, Greta (author), Rabe, Antonia (author), Gallego Murillo, Joan Sebastián (author), van der Zwaan, Carmen (author), Hoogendijk, A. J. (author), van den Biggelaar, Maartje (author), Minetti, Giampaolo (author), Bogdanova, Anna (author), Mairbäurl, Heimo (author)Hypoxia is associated with increased erythropoietin (EPO) release to drive erythropoiesis. At high altitude, EPO levels first increase and then decrease, although erythropoiesis remains elevated at a stable level. The roles of hypoxia and related EPO adjustments are not fully understood, which has contributed to the formulation of the theory...journal article 2022
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Longo, Francesco (author)Focusing on Rifugio Carducci, an alpine hut in Dolomiti, Italy, this graduation project researched the interrelationships between user, building, and environment, designing an expansion and renovation project with the aim of making the refuge an integral and positive part of its ecosystem. The project proposes the of hydrogen as main energy...master thesis 2021
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Korovilas, Dionisios (author)The medium-altitude long-endurance (MALE) unmanned aerial vehicle (UAV) plays a key role in both military and civilian applications around the world. However, in a world where electric UAVs are increasingly becoming the norm, the MALE UAV is still primarily powered by hydrocarbon fuels and its design is very much constrained by existing general...master thesis 2021
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Matthes, Sigrun (author), Lim, Ling (author), Burkhardt, Ulrike (author), Dahlmann, Katrin (author), Dietmüller, Simone (author), Grewe, V. (author), Haslerud, Amund S. (author), Hendricks, Johannes (author), Owen, Bethan (author), Pitari, Giovanni (author), Righi, Mattia (author), Skowron, Agnieszka (author)Aviation is seeking for ways to reduce its climate impact caused by CO<sub>2</sub> emissions and non-CO<sub>2</sub> effects. Operational measures which change overall flight altitude have the potential to reduce climate impact of individual effects, comprising CO<sub>2</sub> but in particular non-CO<sub>2</sub> effects. We study the impact of...journal article 2021
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Mesfum, Johannes (author)The flight planning process is an extensive and long process to direct and maintain a high level of operations within the airspace. As air traffic demand grows year after year, it's worthwhile to optimise the European air traffic system further. One way of optimising the system, is by creating optimal flight schedules that solve for demand...master thesis 2020
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Maas, J.B. (author), van Gent, R.N.H.W. (author), Hoekstra, J.M. (author)Although the main goal of a newly developed Collision Alert Radar is to observe airborne targets, it was found that reflections of the ground are received by the radar. The radar is carried on board of the aircraft, and the ground reflections may be used to detect flight information with respect to the terrain, something which is not possible...conference paper 2020
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Rosenkrantz, Rick (author)The climate impact of aviation is assessed as function of the emission altitude for two different aircraft types, the Boeing 787-800 and Boeing 777-300ER. The basis for this research is an assembly of 2,738 historical trajectories for which the fuel consumption and emissions were determined by using Piano-X aircraft performance data and...master thesis 2019
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Rajan, R.T. (author), Sundaramoorthy, P.P. (author), Vertegaal, C.J.C. (author), Montagne, A.J.M. (author), Karunanithi, Visweswaran (author), Verma, Maneesh (author), Bentum, M (author), Verhoeven, C.J.M. (author)The frequency range below 30 MHz remains one of the last unexplored frequency ranges in radio astronomy However, Earth-based observations at these wavelengths are severely impeded, due to man-made radio frequency interference (RFI) and atmospheric opacity. To overcome this impediment, various space-based radio astronomy studies have been...conference paper 2019
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da Silva Rosa, David (author)Helicopter pilot performance in degraded visual conditions may be improved through sensor fusion and an augmented reality (AR) display. A simulator experiment with 12 participants was done to test the effect of synthetic terrain grid cell size and helicopter heave dynamics on task performance and control behaviour in a terrain-following hill...master thesis 2019
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Capiot, Kevin (author)The solution space for conflicts between aircraft consists of velocity, heading and altitude changes. In the current design of the air traffic controller workspace the instantaneous values for velocity, heading and altitude can all be found in the aircraft labels on the radar, however the heading and velocity can also be derived from the...master thesis 2017
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van der Vlugt, R. (author)Motivation: Speed sailing can be seen as the ultimate challenge for a sailing craft. Kiteboarders have recently shown to be capable of extremely high sailing speeds using a relatively cheap and simple combination of a kite and a board. They proved to be the world’s fastest sailing crafts during a record attempt in October 2008, in September 2009...master thesis 2009
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- Lansdorp, B. (author), Ockels, W.J. (author) conference paper 2007
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van Doorn, J.T.M. (author), Alders, G.J. (author), Pijpers, E.W. (author), Vogelaar, H.L.J. (author)First, the present training curriculum is described, including the use of simulation and simulators. The possibilities to improve training through the increased use of simulation are discussed. The question whether simulation can replace live training is addressed. The paper concluded that simulation is a force multiplier w.r.t. training,...report 1989
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Moek, G. (author)The problem of estimating the probability of vertical overlap in possible future airway systems with a vertical separation standard of 1000 ft above Flight Level 290 is addressed. It forms part of an overall safety assessment of such potential systems. The problem is solved by developing a mathematical probability model of the vertical distance...report 1988
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van Woerkom, P.T.L.M. (author)Increases in size and mechanical complexity of spacecraft result in increased complexity of the mathematical model which describes the spacecraft dynamics. This results in turn in increased computational effort, in increased difficulties in understanding the characteristics of the spacecraft dynamics, and in increased difficulties in the design...report 1985
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Milgram, P. (author), van Woerkom, P.T.L.M. (author), Wewerinke, P.H. (author)This report presents the results of an illustrative analysis of human-in-the-loop rendezvous and docking (RVD) performance, for the purpose of demonstrating the practicality of applying human engineering methods and techniques, introduced in Part I of this project, to the analysis of control loops with human operators in space operations....report 1984