Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
(21 - 40 of 60)
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Bakker, M. (author), Rajewicz, T. (author), Kien, H. (author), Vreeburg, J.H.G. (author), Rietveld, L.C. (author)WTP Gruszczyn supplies drinking water to a part of the city of Pozna?, in the Midwest of Poland. The conventional production flow control and pressure control of the facility was replaced by the advanced control software called OPIR. To assess the differences between conventional and advanced control, production flows and pressures of two...conference paper 2013
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Bakker, M. (author), Rajewicz, T. (author), Kien, H. (author), Vreeburg, J.H.G. (author), Rietveld, L.C. (author)WTP Gruszczyn supplies drinking water to a part of the city of Pozna?, in the Midwest of Poland. For the optimal automatic pressure control of the clear water pumping station, nine pressure measuring points were installed in the distribution network, and an active pressure control model was developed and installed. This model is a hybrid form of...conference paper 2013
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Bakker, M. (author)Het drinkwater wordt vanaf de waterzuiveringen naar de onze huizen en bedrijven verpompt via de distributie netwerken. Deze netwerken zijn zeer uitgebreide systemen: naast elke straat en naast veel wegen en door veel weilanden liggen leidingen waardoor het water stroomt. De leeftijd van deze leidingen is divers: in jonge steden of in nieuwe...conference paper 2013
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Van der Spek, J.E. (author), Bogaard, T.A. (author), Bakker, M. (author)Groundwater dynamics may play a significant role in landslides. A detailed model is developed of the groundwater dynamics in landslides in varved clays in the Trièves area in the French Alps. The varved clays consist of a sequence of alternating silt and clay layers, covered by a colluvium layer and cut through by fissures. The hydraulic...journal article 2013
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Rem, P.C. (author), Van den Broeck, F. (author), Bakker, M.C.M. (author)Post-consumer steel scrap is often hand picked for contaminants such as copper to meet specifications of steelmakers. If the hand sorting capacity exceeds 20 tons scrap/h the efficiency generally becomes problematic, leaving 50% of the copper contaminants in the steel product. In response, new technologies are emerging that facilitate hand...journal article 2012
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- Bakker, M. (author), Vreeburg, J.H.G. (author), Rietveld, L.C. (author), Blom, T. (author), Van der Roer, M. (author) conference paper 2012
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Bakker, M. (author), Vreeburg, J.H.G. (author), Van der Roer, M. (author), Sperber, V. (author)An algorithm which compares measured and predicted water demands to detect pipe bursts was developed and tested on three data sets of water demand and reported pipe bursts of three years. The algorithm proved to be able to detect bursts where the water loss exceeds 30% of the average water demand in the area. The accuracy depends on the...conference paper 2012
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Bakker, M. (author), Lapikas, T. (author), Tangena, B.H. (author), Vreeburg, J.H.G. (author)Water supply systems are vulnerable to damage caused by unintended or intended human actions, or due to aging of the system. In order to minimize the damages and the inconvenience for the customers, a software tool was developed to detect anomalies at an early stage, and to support the responsible staff in taking the right decisions to restore...conference paper 2012
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Bakker, M. (author), Vreeburg, J.H.G. (author), Rietveld, L.C. (author), van der Roer, M. (author)An method which compares measured and predicted water demands to detect anomalies, was developed and tested on three data sets of water demand of three years in which and 25 pipe bursts were reported. The method proved to be able to detect bursts where the water loss exceeds 30% of the average water demand in the area. By simultaneously running...conference paper 2012
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Rem, P.C. (author), Bakker, M.C.M. (author), Berkhout, S.P.M. (author), Rahman, M.A. (author)Eddy current separation apparatus (1) for separating particles (20) from a particle stream (w), wherein the apparatus (1) comprises a separator drum (4) adapted to create a first particle fraction (21) and a second particle fraction (23), a feeding device (2) upstream of the separator drum (4) for supplying particles (20) to said separator drum ...patent 2012
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Douven, W. (author), Mul, M.L. (author), Fernandez-Alvarez, B. (author), Lam Hung, S. (author), Bakker, N. (author), Radosevich, G. (author), Van der Zaag, P. (author)This paper analyses the design and impact of capacity building programmes aimed at enhancing capacities of riparian professionals to address and resolve transboundary issues in international river basins. The case study is a programme developed by the Mekong River Commission (MRC). A post-training evaluation was applied to assess its impact in...conference paper 2012
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Sanaee, S.A. (author), Bakker, M.C.M. (author)Ultrasound imaging techniques are proposed for measuring the shape and thickness of immersed waste particles (10-20 mm size) using a linear sensor array from a fixed position. For these purposes both the front and back surface of a particle needs to be reconstructed. Raw ultrasound pulse-echo and plane wave datasets and different imaging...conference paper 2012
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- De Lucas Pardo, M.A. (author), Bakker, M. (author), Winterwerp, J.C. (author), van Kessel, T. (author), Cozzoli, F. (author) conference paper 2012
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Xia, H. (author), Bakker, M.C.M. (author)In the C2CA project, an online sensor system is required to measure and control the quality and homogeneity of demolition concrete continuously. Laser-induced breakdown spectroscopy is a candidate to fulfil the objective in several tasks. Investigated is the ability of LIBS as an online semi-quantitative composition analysis technique. The...conference paper 2012
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Bakker, M. (author), Verberk, J.Q.J.C. (author), Palmen, L.J. (author), Sperber, V. (author), Bakker, G. (author)Half of all water supply systems in the Netherlands are controlled by model predictive flow control; the other half are controlled by conventional level based control. The differences between conventional level based control and model predictive control were investigated in experiments at five full scale water supply systems in the first half of...conference paper 2011
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Baart, F. (author), Bakker, M.A.J. (author), Van Dongeren, A. (author), Den Heijer, C. (author), Van Heteren, S. (author), Smit, M.W.J. (author), Van Koningsveld, M. (author), Pool, A. (author)For the design of cost-effective coastal defence a precise estimate is needed of the 1/10 000 per year storm surge. A more precise estimate requires more observations. Therefore, the three greatest storm surges that hit the northern part of the Holland Coast in the 18th century are reconstructed. The reconstructions are based on paintings,...journal article 2011
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Bakker, M. (author)A new analytic-element solution is presented for a well with a sinusoidal discharge pumping near cylindrical inhomogeneities. Both the transmissivity and the storage coefficient may be different inside each cylinder. The solution consists of separate series solutions inside and outside each cylinder; asymptotic expansions are presented for cases...journal article 2009
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Bakker, M. (author)A new accurate numerical solution is presented for aquifer storage and recovery (ASR) systems in coastal aquifers; flow is approximated as radial Dupuit interface flow. The radial velocities of points on the interface are a function of time, the vertical coordinate, and the dimensionless parameter D (the discharge of the well divided by the...journal article 2009
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Bakker, K.J. (author), Blom, C.B.M. (author)According to modern design codes, such as the Eurocode 7, also Soil Retaining structures should be designed according to Ultimate Limit State analysis, see [1]. From an economic point of view, the design of the lining, i.e. the thickness and reinforcement of it, would be optimal if the loading during construction is less critical than the...journal article 2009
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Van Halem, D. (author), Bakker, S.A. (author), Amy, G.L. (author), Van Dijk, J.C. (author)For more than a decade it has been known that shallow tube wells in Bangladesh are frequently contaminated with arsenic concentrations at a level that is harmful to human health. By now it is clear that a disaster of an unheard magnitude is going on: the World Health Organization has estimated that long-term exposure to arsenic in groundwater,...journal article 2009
Searched for: faculty%3A%22Civil%255C%252BEngineering%255C%252Band%255C%252BGeosciences%22
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