Searched for: subject%3A%22stability%22
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Trovarelli, Federico (author)
A key requirement for enabling Mars manned mission is the capability to land a payload within 100 m from its nominal target. State of the art technology, however, is still far from reaching this objective. A possible solution for improving the landing accuracy on Mars is the development of a guidance system that exploits thrusters installed on...
master thesis 2018
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de Loor, David (author)
PLAXIS study of a primary flood defence in the Netherlands. The influence of water level, precipitation, and wave overtopping on the position of the phreatic surface is being investigated. The hydraulic loads are applied to a clay dike with a cracked top layer and a sand dike with a cracked clay cover. The findings are related to the current...
master thesis 2018
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Mirza, Abdullah (author)
A Variable Stability (VS) aircraft allows variations of response characteristics and Handling Quality (HQ) of an aircraft. By allowing for changing aircraft characteristics, the VS system has a diverse range of applications which include aircraft development, research of HQs, system tests and pilot training. This research investigates whether...
master thesis 2018
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van Duijn, Erik (author)
The Ayeyarwady River is the most important river in Myanmar, connecting the cities Mandalay and Yangon, making inland water transport economically attractive. The Ayeyarwady River has a dynamic character, caused by the significant discharge difference between the dry and rainy season, and the related suspended sediment transport. Point bar...
master thesis 2018
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van Montfoort, Mick (author)
This Thesis studies the safety assessment method for macro-stability of dikes with high foreshores. Currently, this method is a semi-probabilistic method, which does not take the presence of a foreshore into account. The research concludes that the presence of a foreshore has a significant influence on the failure probability with respect to...
master thesis 2018
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Siebinga, Olger (author)
Currently, lower-body exoskeletons for<br/>paraplegics are investigated as an alternative to wheelchairs<br/>and as an exercise method with medical benefits. Literature<br/>provides little examples for users to influence the<br/>length or frequency of steps taken by the exoskeleton,<br/>complicating stability and practical usability. This study...
master thesis 2018
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Li, jingwen (author)
student report 2018
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Kort, Kajan (author)
Density Functional Theory (DFT) calculations were performed to explore the electrochemical properties of two organic molecules that show promise to serve as affordable and safe anode materials in aqueous sodium-ion batteries. Upon sodium insertion, N,N’ –bis(methyl)- 1,4,5,8-naphthalene diimide (NDMe) appears to share sodium atoms with three...
master thesis 2017
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Wendt, Emiel (author)
The static stability of stones on mild slopes under wave attack is investigated in this research. The first part of the research is focused on reproducing the physical scale model tests regarding profile change of Kramer (2016) numerically with the model XBeach-G. The erosion profiles modelled with the bed-load transport formulas of Nielsen ...
master thesis 2017
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van Bolderen, Geoffrey (author)
Wire and arc additive manufacturing (WAAM), a relatively new metal 3D-printing technology, allows for fabrication of shapes that were not possible to produce a few years ago. Using 6-axis industrial robots with a gas metal arc welding (GMAW)-head, Dutch start-up MX3D prints metal in every direction mid-air. By welding small parts of material at...
master thesis 2017
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Hassanain, Omar (author)
The ever-increasing road transport demand in the developing and the developed world has resulted in road-traffic networks nearing maximum capacity. Traditional approaches to this problem, such as increasing road capacity, do not offer long-term solutions. Combined with rising environmental concerns, the demand for smarter solutions has never...
master thesis 2017
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Zhang, Shaochuan (author)
Stability and security of the grid are two vital aspects of energy supply. To keep the grid stable, it is necessary that the electricity plant can control and protect the mechanism. In the past, traditional plants could meet these requirements. Nowadays, the share of sustainable power sources in total electricity generation has become so...
master thesis 2017
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Jelia, Jawid (author)
Immersed tunnel elements are prefabricated in the construction yard and then transported to the construction site to be integrated into the tunnel. During the transportation and immersion, the floating tunnel element is connected via cables to the immersion barges/pontoons. In this study, the hydrodynamical behavior of a floating tunnel element...
master thesis 2017
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Tian, Ye (author)
Downstream of hydraulic structures, the flow is normally of turbulence. This will cause considerable erosions on the gravel bed. To prevent this, block mattress is preferable in many cases. Its effective stabilization and feasibility on construction make it commonly used against scouring problems, protecting underwater pipelines and cables. The...
master thesis 2017
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Lamens, Pascale (author)
Loose, sandy slopes situated or deposited under water may be susceptible to liquefaction-induced failure. In contrast to 'regular' localised slope failures, flow slides are diffuse, large-scale and potentially disastrous. Earthquake-induced ground vibrations currently dominate the liquefaction engineering scene. In reality, however, many...
master thesis 2017
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Braber, T.I. (author)
On-board stabilization of quadrotors is often done using an Inertial Measurement Unit (IMU), aided by additional sensors to combat the IMU drift. For example, GPS readings can aid when flying outdoors, or when flying in GPS denied environments, such as indoors, visual information from one or more camera modules can be used. <br/>A single...
master thesis 2017
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van Altenborg, Camiel (author)
Due to the shift in electrical energy generation from thermal synchronous generators towards various renewable sources, power system stability will become a more pressing issue in the near future. In this thesis, we explore possible improvements to the dynamic grid model currently used by TenneT TSO for large-disturbance stability studies,...
master thesis 2017
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Groenewegen, Mathijs (author)
The purpose of this thesis is to aid in the development of vertical cutting mining as a mining method. In order to do so, the technical feasibility and viability, and environmental benefit of vertical cutting as a complementary mining method were investigated. The investigation was performed for the case of the Victor Diamond mine in northern...
master thesis 2017
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Fischer-Gundlach, Moritz (author)
Lyapunov's 2nd method can be formulated as a convex optimization problem by means of Sum-of-Squares (SOS) optimization. This gives a powerful tool for robust stability analysis of nonlinear systems. The use of SOS optimization is limited to small dynamical systems, because of the demanding numerical complexity underlying SOS optimization. For...
master thesis 2017
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Muhamad Zamroni, Muhamad (author)
As the scale and complexity of power systems increase, simulating them in efficient and accurate ways continues to<br/>be a challenge in power systems engineering. Electromagnetic Transient (EMT) and Transient Stability (TS) simulation are the two main dynamic power system simulation methods. To simulate large and complex power systems in...
master thesis 2017
Searched for: subject%3A%22stability%22
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