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Ashagrie, A.G. (author), De Laat, P.J.M. (author), De Wit, M.J.M. (author), Tu, M. (author), Uhlenbrook, S. (author)
journal article 2006
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Bosman, G. (author), Dijkstra, O. (author), Gilding, C. (author), Van der Hoeven, T. (author), Langedijk, J. (author), Trung, L.H. (author), Louwersheimer, W.F. (author), Maaskant, B. (author), Van der Sande, M. (author), De Waal, R.J. (author), De Wit, A. (author), Zweers, S. (author)
For the course CT5318 a trip is made to Varna, Bulgaria, where hydraulic measurement s on the beach and the coastal structures are executed by the students. This report describes the measured data, the used methods and the technical interpretation of the results. All the data was processed in Varna and analysed once returned in the Netherlands....
student report 2005
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Zhang, X. (author), Van den Bos, C. (author), Sloof, W.G. (author), Hovestad, A. (author), Terryn, H. (author), De Wit, J.H.W. (author)
journal article 2005
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Koleva, D.A. (author), Hu, J. (author), Van Breugel, K. (author), Boshkov, N. (author), De Wit, H. (author)
journal article 2005
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De Wit, J.J.M. (author)
In the field of airborne earth observation there is a special interest in lightweight, low cost imaging radars of high resolution. Such radar systems could play an essential role in small-scale earth observation applications such as the monitoring of dikes, watercourses or areas in which gas pipes or electrical power lines are buried. In order...
doctoral thesis 2005
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Arnold, E. (author), Bonnes, J. (author), Breugem, A. (author), Cuypers, K. (author), Eijnthoven, E. (author), Van Haaren, D. (author), Kemerink, J. (author), Van der Mark, R. (author), De Vries, G. (author), De Wit, S. (author)
This report was written for the subject "Fieldwork Coastal Engineering". This subject was held for the first time in October 2002. The exercise was carried out in the Bulgarian city Varna and its surroundings out from October 6 to October 14. This report has the following structure. First, there is a journal in which the activities we undertook...
student report 2002
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De Wit, J. (author)
Van oudsher heeft Nederland te maken met rivieroverstromingen. Door de eeuwen heen werd er in het kader van de aanleg van de Hogesnelheidslijn tussen Amsterdam en Parijs (HSL-Zuid) zal in het Groene Hart tussen Leiderdorp en Hazerswoude een 7 kilometer lange boortunnel worden gerealiseerd. Deze Groene Harttunnel bestaat uit ssn buis voor beide...
master thesis 2001
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De Wit, M.S. (author)
doctoral thesis 2001
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Nonhebel, F. (author), De Wit, M. (author)
master thesis 2000
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De Wit, A. (author)
In deze studie naar bouwmethoden onder bestaande bebouwing is een aantal mogelijke alternatieven, voor de bouw van de passage van de Noord/Zuidlijn met het Centraal Station, naar voren gekomen. De behandelde alternatieve bouwmethoden voor de passage van de Noord/Zuidlijn met het Amsterdam Centraal Station zijn: De buizenmethode. Het persen van...
master thesis 2000
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De Wit, J.J.M. (author)
In order to obtain the cloud liquid water content from radar observations, a relationship between the radar reflectivity (Z) and the cloud liquid water content (LWC) must be found. In literature, empirical Z-LWC have been proposed. However these relationships ignore drizzle-sized droplets. Since the clouds were drizzling during Clare these...
master thesis 2000
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De Wit, S. (author)
In the design of low-rise buildings, wind tunnel experiments are scarcely employed to assess the wind-induced pressures, which are required e.g. for the simulation of ventilation flows or for the evaluation of the structural integrity. Instead, techniques are used, which predominandy rely on inter- or extrapolation of wind pressure coefficients,...
report 1999
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De Wit, M.S. (author)
This paper reports on an analysis of the uncertainty in wind pressure (difference) coefficients, which are assessed on the basis of generic knowledge and experimental data rather than with a specific (wind tunnel) experiment. The analysis is carried out on time averaged pressure coefficients in a specific case, concerning a low-rise building in...
journal article 1999
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De Wit, W.O. (author)
doctoral thesis 1998
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Van der Meer, J.W. (author), De Wit, J.M. (author)
More than six kilometers of rehabilitation works on sea defences at the Essequibo and West Deroerara coast of Guyana has been constructed within one year. This shows the fast construction of the riprap revetment design. The performance of the structure was good until the last month of construction when two slip failures occurred of a bout 100 m...
report 1996
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De Wit, P.J. (author)
A research project was carried out at the Delft University of Technology in order to study the interaction between waves as weil as a current and a muddy bed. For this purpose several experiments were made on two artificial clays, namely China Clay and Westwald Clay. The results of the experiments on China Clay were reported by De Wit (1994). In...
report 1994
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De Wit, P.J. (author)
A research project was started at the Delft University of Technology in order to study the interaction between waves as well as a current and a muddy bed. For this purpose several experiments were made on artificial clays. In the present report only flume experiments on China Clay are discussed. In the experiments made special attention was paid...
report 1994
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De Wit, P.J. (author)
The rheological behaviour of three artificial muds was determined using a rotational viscometer. First some characteristics of the viscometer used were rneasured. For want of an appropriate calibration tluid, the viscosity of demineralized water was determined. The result agreed very well with what could be expected from literature. Then the...
report 1992
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De Wit, P.J. (author)
A research program was started to study the behaviour of cohesive sediments at the Delft University of Technology in 1989. As part of this project a well-provided physico-chemicallaboratory was built within the Hydromechanics Laboratory and adequate instrumentation was purchased. These new instruments and other instruments already present in the...
report 1992
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De Wit, P.J. (author)
In this report an overview will be given of the basic properties of (suspended) clay particles. In section 2 the structure of clay minerals will be described. The forces between suspended particles (section 3) and the possible consequences of them, flocculation or deflocculation (sections 4 and 5) will be discussed next. Section 7 will deal with...
report 1992
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