Searched for: subject%3A%22Monitoring%255C%2Bsystems%22
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Saeed, A. (author), Volker, A.W.F. (author), Martina, Q. (author), Alalouni, A. (author)
Scale and corrosion affect the production certainty of oil and gas well. Scale build-up reduces flow and ultimately could shut down production when it block to tubing completely. Corrosion of the tubing wall occurs very often simultaneously with scale build-up and affects the integrity of the tubing wall. Vital information about the integrity is...
conference paper 2019
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Willems, F. (author), van Gompel, P. (author), Seykens, X. (author), Wilkins, S. (author)
This work gives an outlook on the potential of automated driving functions (ADFs) to reduce real-world CO2 and pollutant emissions for heavy-duty powertrains. Up to now, ADF research mainly focuses on increased traffic safety, driver comfort, and road capacity. Studies on emissions are lacking. By taking the driver out-of-the-loop, cycle-to...
conference paper 2019
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van der Eerden, F.J.M. (author), van den Berg, F.H.A. (author), Wessels, P.W. (author), Kruyen, A.H.J. (author)
The use of combining sound measurements and sound propagation modelling is increasing. In this paper the acoustic situation on and around a shooting range is considered. A monitoring system that automatically detects and localizes impulsive sound events is presented. The locations of these events are obtained by combining detections from...
conference paper 2018
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Barros, E. (author), Leeuwenburgh, O. (author), Carpentier, S. (author), Wilschut, F. (author), Neele, F. (author)
To manage risks in CO2 storage operations, monitoring systems need to be designed such that the data can inform the operator whether the storage site will continue to behave as expected or not. In order to compare the benefits of different monitoring strategies, we require a measure of ‘efficiency' that is based on a balance between monitoring...
conference paper 2018
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Heaney, K.D. (author), Prior, M. (author), Campbell, R.L. (author)
The ocean is nearly transparent to low frequency sound permitting the observation of distant events such as earthquakes or explosions at fully basin scales. For very low frequency the ocean acts as a shallow-water waveguide and lateral variability in bathymetry can lead to out-of-plane effects. In this paper, data from the International...
article 2017
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Verberne, S. (author), Wabeke, T. (author), Kaptein, R. (author)
In this paper, we evaluate query suggestion for Boolean queries in a news monitoring system. Users of this system receive news articles that match their running query on a daily basis. Because the news for a topic continuously changes, the queries need regular updating. We first investigated the users' working process through interviews and then...
conference paper 2016
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van Sark, W. (author), Kausika, B.B. (author), Siebenga, B. (author), Hermans, P. (author), Folkerts, W. (author)
ASM-1 (Advanced Solar Monitoring) aims to deal with problems and opportunities arising in the PV market with the help of “Big Data”. Among these, the need for balancing demand and supply on a local and/or regional scale and the design of the right investment program for the electricity grid infrastructure advanced forecasting of future new...
report 2015
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de Vries, H.W.W. (author), Azzopardi, G. (author), Koelewijn, A. (author), Knobbe, A. (author)
Dike monitoring is crucial for protection against flooding disasters, an especially important topic in low countries, such as the Netherlands where many regions are below sea level. Recently, there has been growing interest in extending traditional dike monitoring by means of a sensor network. This paper presents a case study of a set of pore...
bookPart 2014
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Helmholt, K.A. (author), Courage, W.M.G. (author)
Underground infrastructures can fail due to ground movements. Due to the underground nature this is difficult to detect above ground. In a collaboration of multiple research institutes a new approach has been developed to estimate the probability of failure using underground position sensors. A Proof of Principle monitoring system was developed...
conference paper 2013
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van der Eerden, F.J.M. (author), Graafland, F. (author), Wessels, P.W. (author), Basten, T.G.H. (author)
A model based monitoring system is applied on a local scale in an urban area to obtain a better understanding of the traffic noise situation. The system consists of a scalable sensor network and an engineering model. A better understanding is needed to take appropriate and cost efficient measures, especially when changes to the local...
conference paper 2013
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Peelen, W.H.A. (author), Vervuurt, A.H.J.M. (author), Zuada Coelho, B.A. (author), Leendertz, H. (author)
One of the existing modular expansion joints of the Martinus Nijhoff Bridge in the Netherlands was monitored with the purpose of extending its service life for on year until replacement in 2011. Based on an analyses of the failure mechanisms of this (type of) joint, strain gauges were used as sensors and applied at centre and crossbeams. Chosen...
public lecture 2012
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Kochan, J. (author), Scheidle, M. (author), van Erkel, J. (author), Bikel, M. (author), Büchs, J. (author), Wong, J.E. (author), Melin, T. (author), Wessling, M. (author)
Membranes with antibacterial properties were developed using surface modification of polyethersulfone ultrafiltration membranes. Three different modification strategies using polyelectrolyte layer-by-layer (LbL) technique are described. The first strategy relying on the intrinsic antibacterial properties of poly(diallyldimethylammonium chloride)...
article 2012
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de Bruijn, D. (author)
article 2012
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Meekes, J.A.C. (author), Vandeweijer, V.P. (author), Arts, R.J. (author)
To monitor the migration of the injected CO2 in the Ketzin project (Germany) a permanently buried multi-component seismic array has been installed in August 2009. Besides passive seismic recordings, this monitoring system was used to record data for an active survey carried out in 2009, resulting in a 200 m long 2D seismic line roughly passing...
conference paper 2011
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Zhang, X. (author), Brouwer, J.H. (author), Meekes, J.A.C. (author), Arts, R.J. (author)
Passive seismic imaging during CO2 injection in geological formations gains more and more interest as part of an integrated monitoring approach. For two EU CO2 storage project sites, RECOPOL - Enhanced Coal-Bed Methane pilot site in Kaniów (Poland) and CO2SINK- CO2 injection in a saline aquifer in Ketzin (Germany), the Netherlands Geological...
conference paper 2011
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Schaap, M. (author), Otjes, R.P. (author), Weijers, E.P. (author), TNO Bouw en Ondergrond (author)
Secondary inorganic aerosol, most notably ammonium nitrate and ammonium sulphate, is an important contributor to ambient particulate mass and provides a means for long range transport of acidifying components. The modelling of the formation and fate of these components is challenging. Especially, the formation of the semi-volatile ammonium...
article 2010
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TNO Industrie en Techniek (author), van der Linden, R.J.P. (author), Reijn, H. (author), Muñoz, E. (author), de Wolff, F. (author), Renes, W. (author)
The increasing complexity of natural gas extraction because of reducing reserves, complex behavior and more intricate contractual rules (due to liberalization of the West European energy markets) creates a need for more effective production efficiency. In order to deal with these challenges Wintershall is realizing a real-time monitoring system...
conference paper 2010
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van Geer, F. (author), Marsman, A. (author), Janssen, G.M.C.M. (author), TNO Bouw en Ondergrond (author)
Usually the design of the monitoring system is based on the relation between the monitoring effort and the uncertainty of the information. Often the estimation error standard deviation is used as a criterion for the design. Despite the fact that, for scientists, the standard deviation as a measure of uncertainty is a logical criterion, water...
conference paper 2007
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Chan, T.H.T. (author), Yu, L. (author), Tam, H.Y. (author), Ni, Y.Q. (author), Liu, S.Y. (author), Chung, W.H. (author), Cheng, L.K. (author)
The rapid expansion of the optical fiber telecommunication industry due to the explosion of the Internet has substantially driven down the cost of optical components, making fiber optic sensors more economically viable. In addition, the rapid development of fiber-optic sensors, particularly the fiber Bragg grating (FBG) sensors offers many...
article 2006
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Winthaegen, P. (author), Arts, R. (author), Schroot, B.M. (author), TNO Bouw en Ondergrond (author)
An overview is given of various currently applied monitoring techniques for CO2 storage. Techniques are subdivided in correspondence to their applicability for monitoring three distinct realms. These are: - the atmosphere and the near-surface; - the overburden (including faults and wells); - the reservoir with its seals. Another subdivision can...
article 2005
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