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Karsidi, N.J. (author)
Software design erosion is a well known process; however, once it becomes noticeable it may already have progressed so far that repairing it is difficult and costly. Design conformance assessment techniques can help developers to detect – and mitigate – the effects of design erosion, before they cause problems to the long-term maintainability of...
master thesis 2012
document
Jacobs, L.B. (author)
Cold Heavy Oil Production with Sand (CHOPS) is a production method to produce heavy oil (>100 cP). It is mainly applied onshore Canada in unconsolidated sand reservoirs. Different theories exist about how the erosion process takes place inside the reservoir. This research project focused on the influence of the grain stress on the sand erosion...
master thesis 2012
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Vos, G.J. (author)
An overdose of sediment from the Cilalawi River is going into the reservoir Waduk Jatiluhur. This is resulting in the problem of reservoir capacity reduction. With water still coming from different rivers, the future will be inundation. In this matter the recommendation for this problem is check dam(s) and changing land use, stated by the local...
bachelor thesis 2012
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Zhu, Y. (author), Visser, P.J. (author), Vrijling, J.K. (author), Wang, G.Q. (author)
Breaching of embankments has recently drawn more and more attention due to its importance in the development of early warning systems for embankment failures, in the evacuation plans of people at risk, in the design method of embankments based on a risk-approach, etc. The erosion process observed during embankment breaching tests in the...
journal article 2011
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Smits, T.C. (author)
Due to the closure of the Haringvliet in 1970 as part of the Delta works and the opening of the Beerdam in 1997, the course of the tidal flow in the Rhine-Meuse delta has changed. The tidal flow from and towards the Haringvliet is now completely taking place through the branches that connect the Haringvliet with the Nieuwe Maas and Nieuwe...
master thesis 2011
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Hoffmans, G. (author), Verheij, H.J. (author)
This paper discusses scour without bed protection, such as propeller scour, two-dimensional horizontal, three-dimensional horizontal scour generated by free jets downstream of gates and outlets, two-dimensional vertical and three-dimensional vertical scour. The flow velocities in two- and three-dimensional propeller and free jets are briefly...
journal article 2011
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Trung, L.H. (author)
Report on destructive overtopping tests executed with the wave overtopping simulator along the coast of Vietnam to investigate the strength of the inner slopes of grass dikes. This report presents measurement and observation results obtained during destructive tests with the simulator in Do Son, Thinh Long and Thai Thuy. After the first chapter,...
report 2011
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Trung, L.H. (author), Verhagen, H.J. (author), Van der Meer, J.W. (author)
The Simulator was applied to test the resistance against wave overtopping of grass covered dike slopes in Viet Nam. Observation and measurement during destructive tests were performed to investigate the development process of damage induced by overtopping flow. Damages were likely to be initiated at transition of either geometry or materials, at...
conference paper 2011
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Trung, L.H. (author), Van der Meer, J.W. (author), Luong, N.Q. (author), Verhagen, H.J. (author), Schiereck, G.J. (author)
The resistance of various grassed slopes against wave overtopping has been appraised by means of the Wave Overtopping Simulator in situ for a couple of years in Viet Nam. Destructive test results show that a dike slope covered with grass could suffer a certain overtopping discharge not smaller than 20 l/s per m. During testing it was difficult...
conference paper 2011
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Jacobs, W. (author)
‘Wetlands’ in tidal lagoons and estuaries are among the most valuable ecosystems in the world. Managing these systems requires both a thorough knowledge and validated tools to predict their behavior and development. An important morpho-dynamic process herein is the erosion (‘pick-up’) of the bed, which are in inter-tidal areas often composed of...
doctoral thesis 2011
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Montserrat Trotsenburg, F. (author)
The aim of this thesis was to investigate how (macro)benthic organisms interact with the ecological functioning, erodibility and small- to medium-scale morphodynamics of estuarine intertidal sediment by modulating its composition and/or properties. In these interactions, scale is of great importance for the ecosystem engineers. The changes they...
doctoral thesis 2011
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Den Boer, V.J.E. (author)
The Langmann reservoir is part of the hydropower system in the river Teigitsch and in the reservoir loss of storage volume occurs. The reservoir was therefore flushed, but recently no permission is granted. The reason is the high sediment concentrations that have negative effects on the downstream region. An optimization of the flushing...
master thesis 2011
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Bijl, E. (author)
The erosion problem at the Senegambia area (The Gambia) is the subject of this thesis. The Senegambia area is the largest Tourism developed area which contributes significantly to the economy of The Gambia. In November 2003 Royal Haskoning has constructed a beach nourishment of 1,000,000 m3 as an erosion buffer with a lifetime of 10 to 15 years....
master thesis 2011
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Van de Leur, K. (author)
It is common practice to protect subsea pipelines by embedding them into the soil. Trenches can be made before or after the pipelines have been laid. In the latter case, the excavation process is called post-trenching. The essence of post-trenching, as handled in this thesis, is erosion of sand by a water-jet. The literature study focused on the...
master thesis 2010
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Trung, L.H. (author), Van der Meer, J.M. (author), Schiereck, G.J. (author), Cat, V.M. (author), Van der Meer, G. (author)
Sea dikes in Viet Nam have been built up during a long history. Every year, about 4 to 6 storms attack the coast and cause severe damages of the sea dikes. Till now, little is known about strength and stability of the inner slope covered with grass under impacts of wave overtopping during storm surges. Destructive tests have been performed with...
conference paper 2010
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Mous, B.C. (author)
Against the background of enhanced hydraulic loads due to climate change there will be a need for improvement of the flood defence system in the Netherlands in the future. These days there is a growing interest in grass as a dike cover because it is a cheap and a sustainable dike protection. Yet at the moment there is a hiatus in the knowledge...
master thesis 2010
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Van Prooijen, B.C. (author), Winterwerp, J.C. (author)
The linear formulation for erosion E = M(?b??c), often applied in engineering applications, has two properties, which do not always comply with field and laboratory observations, they are as follows: (1) The erosion rate is zero below the critical bed shear stress ?c and increases linearly with bed shear stress ?b, when exceeding the critical...
journal article 2010
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Talmon, A.M. (author)
conference paper 2010
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Eslami Arab, S. (author)
Groins are old and intuitive means of reducing erosion and are found along the coast worldwide, although according to CEM (Coastal Engineering Manual 2003), “they are probably the most misused and improperly designed of all coastal structures”. The original purpose of groins was to reduce local erosion, that is, to hold the width of beach in...
master thesis 2009
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Kebede, A.S. (author)
Coastal zones are highly vulnerable to climate change and its variability. Future projections of global climate change suggest that relative sea-level rise and increased storm frequencies could lead to significant increases in coastal flooding and shoreline erosion. Associated with this, it is likely that coastal hazards can have the potential...
master thesis 2009
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