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Langeveld, N.D.S. (author)
In deze scriptie word numeriek de invariante maat gegeven van de gegeneraliseerde kettingbreuk. Resultaten als constante van Khinchine worden vervolgens berekend voor de gegeneraliseerde kettingbreuk. Ook worden convergentie bewijzen gegeven voor zowel de reguliere kettingbreuk als de gegeneraliseerde kettingbreuk. Verdere eigenschappen over de...
bachelor thesis 2012
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Langeveld, L.H. (author)
book chapter 2011
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Langeveld, L.H. (author), Van Egmond, R. (author), Jansen, R.J. (author), Özcan Vieira, E. (author)
book chapter 2013
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Stanic, N. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
There is still a long way to go in understanding the behaviour of solids in sewers due to the difficulties in obtaining sufficient monitoring data to be able to understand the dominant processes. Laser profilers have shown to be capable of measuring the pipe interior, with a high accuracy, which is sufficient to be able to detect and quantify...
conference paper 2014
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Rombouts, P.M.M. (author), Tralli, A. (author), Langeveld, J.G. (author), Verhaart, F. (author), Clemens, F.H.L.R. (author)
Being able to accurately determine weir discharges is of key importance in urban water management. The most common method is performing a level measurement and calculating the discharge using the standard weir equation. Since this equation is only valid in certain conditions, this can lead to large deviations from the actual discharge. In this...
conference paper 2014
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Langeveld, J.G. (author), Schilperoort, R.P.S. (author), Rombouts, P.M.M. (author), Benedetti, L. (author), Amerlinck, Y. (author), de Jonge, J. (author), Flameling, T. (author), Nopens, I. (author), Weijers, S. (author)
Modelling of the integrated urban water system is a powerful tool to optimise wastewater system performance or to find cost-effective solutions for receiving water problems. One of the challenges of integrated modelling is the prediction of water quality at the inlet of a WWTP. Recent applications of water quality sensors have resulted in the...
conference paper 2014
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Post, J.A.B. (author), Pothof, I.W.M. (author), Ten Veldhuis, J.A.E. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
It remains unknown how lateral house connections affect the performance of the sewer system, since the assessment of serviceability is mainly based on the state of the main sewer system. Further insight into the contribution of lateral house connections to the overall level of service provided can aid to target investments to parts of the system...
conference paper 2014
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Wiegers, T. (author), Langeveld, L.H. (author), Vergeest, J.S.M. (author)
Many designers do not use CAD tools for shape ideation. They consider CAD systems not appropriate for the ideation phase. This research investigates how designers ideate shape, in particular which terms they use to exteriorize shape. The goal is to be able to propose digital tools that are useful for shape ideation. For the inventory of shape...
conference paper 2001
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Stanic, N. (author), Salet, T. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
The principle of structural behaviour of buried concrete pipes is fairly understood, except for how material deterioration affects structural behaviour and performance. Consequently, information on the structural behaviour of deteriorated sewer pipes will contribute to better understanding of the changes in status, which is essential for...
conference paper 2014
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Aarts, A.L.F. (author), Langeveld, J.G. (author), Ten Veldhuis, J.A.E. (author), Rietveld, L.C. (author)
Since the initiation of environmental legislation, monitoring campaigns have been done to estimate the characteristic pollutant concentrations of combined sewer overflow water. Such local campaigns are expensive due to the large number of events which should ideally be followed. This study focused on whether available concentration ranges from...
conference paper 2013
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Van Daal-Rombouts, P.M.M. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
Kallisto is a large scale research project at water board De Dommel in The Netherlands, in cooperation with several partners (Weijers et al, 2011). It consists of quantitative and qualitative continuous on line measurements and extended modelling of the WWTP (Waste Water Treatment Plant) Eindhoven, the contributing sewer systems and the river...
conference paper 2012
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Nienhuis, J. (author), De Haan, C. (author), Langeveld, J.G. (author), Klootwijk, M. (author), Clemens, F.H.L.R. (author)
Distributed Temperature Sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are...
conference paper 2012
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Rombouts, P.M.M. (author), Schilperoort, R. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
The objective of this paper is to demonstrate the applicability of, and need for, surrogate sensors as robust sensors for water quality based RTC. For this purpose 1.5 years of level, conductivity (EC) and turbidity (TU) measurements at 9 combined sewer overflow (CSO) locations have been performed and analysed to determine the most polluted CSO...
conference paper 2013
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Benedetti, L. (author), De Jonge, J. (author), De Klein, J. (author), Flameling, T. (author), Langeveld, J.G. (author), Nopens, I. (author), Van Nieuwenhuijzen, A.F. (author), Zanten, O. (author), Weijers, S. (author)
conference paper 2012
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Langeveld, L.H. (author)
A workshop Product Design for Elderly was held in Beijing and organized by the School of Digital Media and Design, Beijing University of Posts and Telecommunications. A domestic appliances company had sponsored a part of the workshop and brought in the topics. The objectives of the workshop were creating a product design by each design team. and...
conference paper 2014
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Van Riel, W.A.P. (author), Langeveld, J.G. (author), Herder, P. (author), Clemens, F.H.L.R. (author)
conference paper 2013
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Dirksen, J. (author), Baars, E. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
conference paper 2012
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Stanic, N. (author), Haan, C. (author), Tirion, M. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
Sewer systems are costly to construct and even more costly to replace, requiring proper asset management Sewer asset management relies to a large extent on available information. In sewer systems where pipe corrosion is the dominant failure mechanism, visual inspection (CCTV) and core sampling are amongst the methods applied mostly to assess...
conference paper 2012
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Dirksen, J. (author), Van der Steen, A. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)
Previous research learned that the reproducibility of visual sewer inspection data is poor (Dirksen et al.). Further research by Arjan et al. showed that the applied coding system has a major influence on the reproducibility. The aim of this study was to give relevant suggestions to improve the quality by defining defects that are in the current...
conference paper 2013
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Schilperoort, R. (author), Hoppe, H. (author), Haan, C. (author), Langeveld, J.G. (author)
A major drawback of separate sewer systems is the occurrence of illicit connections: unintended sewer cross-connections that connect foul water outlets from residential or industrial premises to the storm water system and/or storm water outlets to the foul sewer system. The amount of unwanted storm water in foul sewer systems can be significant...
conference paper 2012
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