Searched for: subject:"satellite"
(1 - 20 of 48)

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Belis, Sébastien (author)
The Equivalence Principle is today challenged by some theories attempting to unify General Relativity and Quantum Mechanics. The MICROSCOPE mission thus intents to confirm or overturn this principle by testing the universality of free fall in space with an unrivaled precision objective of 10^-15. The principle of the test relies on the precise...
master thesis 2018
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Blokland, Auke (author)
The current procedure of the 11 Air Manoeuvre Brigade (11 AMB) is based on a manual non integrated and slow method that uses only outdated and only topographical data. In the procedure are all 5 aspects of a potential landing zone taken into account, the so called 5S: Slope, Shoots, Surface, Size and Security.
This research led to an...
master thesis 2018
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Mao, Yongjing (author)
Seaports are important maritime commercial facilities and key hubs for national and global trades. There is a growing need for seaborne transport and, hence, seaport facilities, especially in emerging economies due to economic and population growth, such as in Africa. In sedimentary environments, port construction may induce coastal impacts...
master thesis 2018
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Wang, Nan (author)
Coastal zones all over the world have become heavily populated and developed due to the aesthetic value and diverse ecosystem services that they provide (Luijendijk et al. 2018). In recent years, however, climate change and anthropogenic pressures have exacerbated unprecedented coastal recession, threatening billions of dollars’ worth of coastal...
master thesis 2018
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van 't Klooster, Thomas (author)
There is a trend in the miniaturisation of satellites. They not only become smaller, but lighter and more powerful as well. A large growth in the nano-satellite sector is present in the form of CubeSats. These milk carton size satellites use commercial of the shelf components in order to keep the costs low and to allow for technology...
master thesis 2018
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de Bruin, Joep (author)
Horizontal drilling and hydraulic fracturing have increased unconventional oil and gas extraction from shale reserves in the U.S. in the last decade, making up more than half of total U.S. oil and gas production at present. This activity results in NOx emissions in the extraction regions that are measurable from space using the Ozone Monitoring...
master thesis 2018
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Stijnen, Bas (author)
The military use of space brings interesting challenges for both technology and operational aspects. The Netherlands armed forces are a small player within the military world. However, in 2013 the beginning of a space program was started by the Royal Netherlands Air Force (RNLAF). One of the key mission statements
stated: “show the military...
master thesis 2018
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Stierman, Eva (author)
Chlorophyll (Chl) and Total Suspended Matter (TSM) are both important water quality parameters since they influence the amount of oxygen & amount of light penetrating the water. Oxygen and light are vital in marine ecosystems. The Dutch governmental organisation, Rijkswaterstaat (RWS), has been monitoring the water quality of the Dutch part...
master thesis 2017
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Ku, Ou (author)
Satellite radar interferometry (InSAR) techniques can monitor the ground deformation with millimeter precision. With Time-series InSAR (TInSAR) methodology, the ground deformation time series can be derived from InSAR observations. One of the important ways to analyze the InSAR deformation time series is to parameterize the InSAR deformation...
master thesis 2017
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Athanasiou, Panagiotis (author)
Crescentic sandbars are a commonly observed nearshore feature in coastal zones that strongly influence the surfzone circulations and are connected with the occurrence of rip currents. Furthermore, their spatial characteristics have been associated with the shoreline position in the form of shoreline perturbations, indicating morphological...
master thesis 2017
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van der Lugt, P.W. (author)
Glacier fluctuations are regarded as one of the most significant indicators of climate change. The expansion and contraction of glaciers can be observed by outlining glacier boundaries or measuring snow lines with optical Earth observation satellites. New satellites, such as Sentinel-2A/B, provide high spatial resolution images and short revisit...
master thesis 2017
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Ligthart, D. (author)
The Ayeyarwady River is a river with large hydrological variations and an abundance of relatively fine non-cohesive sediment, causing the dynamic behaviour of the river with fast shifting channels. This dynamic behaviour, together with the large hydrological variations, is the source of a frequently flooding river with a moderate navigability....
master thesis 2017
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Lopes Barreto, J.W. (author)
The use of deployable structures for space telescopes has the advantage of enabling options to improve their optical performance and reducing the launch volume. The Deployable Space Telescope (DST), which is currently developed by the Space Systems Engineering (SSE) department, will make use of a high precision deployable structure to extend the...
master thesis 2017
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Van Tiggelen, M. (author)
In this report, a least-squares approach is described for retrieving the 3D structure of the electron concentration in the Earth’s upper ionosphere and plasmasphere, using Global Navigation Satellite System (GNSS) data-sets from Low-Earth-Orbiting (LEO) satellites. Due to the lack of horizontal radio wave geometries, the method uses assumptions...
student report 2017
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Kwant, M.D. (author)
The objective of this thesis was analyzing and evaluating different sources of wave data. Wave data from two hindcasts, satellite altimetry and wave buoys were compared with each other in order to validate different data sets. These datasets provided to be useful tools in determining the wave climate along the coast of Myanmar.
student report 2016
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Girardin, V.E.J. (author)
The modelling of non-gravitational forces acting on a satellite (especially a GNSS satellite) started half a century ago. Their modelling to low Earth orbiters (LEOs), however, are more recent because of the dominating atmospheric drag, the modelling of which requires the precision of recent atmospheric models. However, this is not an issue for...
master thesis 2016
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Dermenakis, S. (author)
A heat switch is a variable thermal conductance device that can act as a thermal conductor or a thermal insulator. A gas-gap heat switch, which is currently in its third design iteration, has been developed by University of Twente in collaboration with the European Space Agency. This device is filled with a gas, whose thermal conductivity varies...
master thesis 2016
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Oomen, M.M. (author)
This thesis covers the design of the Attitude Control System for the SPS-2 configuration, developed at Airbus Defense and Space the Netherlands. The start of the SPS-2 mission consists of three phases: rate damping, Sun Acquisition and Sun Pointing. The SPS-2 satellite has five available mounting places for different payloads. In the first part...
master thesis 2016
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Verdonck, J.A.G. (author)
A miniaturisation trend in the satellite technology is clearly observable. The new generation of small satellites experiences very large thermal fluctuations, due to their high performance payload and low mass. Contemporary thermal control systems, applicable to small satellites, are mostly characterised by having either an insulative or a...
master thesis 2016
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Clarke, M.A.H. (author)
The problem of testing the performance of an attitude control system presents new challenges and opportunities when conducted on a CubeSat scale. This is the result of drastic reduction in physical properties (size, mass, torques) as well as project resources (funds, manpower, time) when compared to traditional satellite programs. This thesis...
master thesis 2016
Searched for: subject:"satellite"
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