Searched for: subject%3A%22parameter%22
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Chai, X. (author), Rozsas, A. (author), Slobbe, A. (author), Teixeira, A. (author)
This paper investigates the impact of structural health monitoring (SHM) on the failure probability of a simulated sheet pile wall system. We use Bayesian statistics to estimate non-directly observable soil parameters from measured structural responses. These estimates are used to calculate the failure probability of the structure against...
article 2022
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)
article 2022
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Sabbadini, A. (author), Massaad, J. (author), van Neer, P.L.M.J. (author), de Jong, N. (author), Verweij, M.D. (author)
In recent years, several fitting techniques have been presented to reconstruct the parameters of a plate from its Lamb wave dispersion curves. Published studies show that these techniques can yield high accuracy results and have the potential of reconstructing several parameters at once. The precision with which parameters can be reconstructed...
article 2022
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)
Clamp-on ultrasonic flow meters (UFMs) are installed on the outside of the pipe wall. Typically, they consist of two single-element transducers mounted on angled wedges, which are acoustically coupled to the pipe wall. Before flow metering, the transducers are placed at the correct axial position by manually moving one transducer along the pipe...
article 2022
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Rozsas, A. (author), Slobbe, A. (author), Martini, G. (author), Jansen, R. (author)
This paper describes a static diagnostic load testing and measurement campaign of a reinforced concrete road bridge in Amsterdam. We consider 29 vertical translation sensors and 37 strain sensors. Multiple Bayesian parameter estima tions are performed to estimate two structural and two load parameters of a three-dimensional finite element (FE)...
article 2022
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Karabanova, A. (author), Berdiyeva, P. (author), van der Pal, M. (author), Johnsen, R.E. (author), Deledda, S. (author), Blanchard, D. (author)
Thermochemical heat storage is expected to play an important role in the ongoing transformation of the European energy system. The efficiency of thermochemical heat storage systems largely depends on that of the reactor, since it limits the amount of the heat stored per unit volume as well as the rate of the heat recovery. Thus, the optimization...
article 2021
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)
Current ultrasonic clamp-on flow meters consist of a pair of single-element transducers which are carefully positioned before use. This positioning process consists of manually finding the distance between the transducer elements, along the pipe axis, for which maximum SNR is achieved. This distance depends on the sound speed, thickness and...
article 2021
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Kessels, I. (author), Koopman, B. (author), Verdonschot, N. (author), Marra, M. (author), Gijsbertse, K. (author)
The performance of military tasks is often exacerbated by additional load carriage, leading to increased physical demand. Previous studies showed that load carriage may lead to increased risk of developing musculoskeletal injuries, a reduction in task speed and mobility, and overall performance degradation. However, these studies were limited to...
article 2021
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den Boef, P. (author), Cox, P.B. (author), Tóth, R. (author)
conference paper 2021
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Xiao, C. (author), Leeuwenburgh, O. (author), Lin, H.X. (author), Heemink, A. (author)
A reduced order modeling algorithm for the estimation of space varying parameter patterns in numerical models is proposed. In this approach domain decomposition is applied to construct separate approximations to the numerical model in every subdomain. We introduce a new local parameterization that decouples the computational cost of the...
article 2021
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Atanasov, A.N. (author), Ahmad, W.H.R.A.M. (author), Alink, M.S.O. (author), van Vliet, F.E. (author)
We propose a fast and simple method to accurately determine the compressing stage in a two-stage amplifier system based on reverse intermodulation and hot S-parameter measurements. The method uses no specialized hardware and needs little reconfiguration, simplifying the measurements. We demonstrate its validity over a broad range of amplifiers...
conference paper 2021
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Remington, B.C. (author), Westerhout, J. (author), Meima, M.Y. (author), Blom, W.M. (author), Kruizinga, A.G. (author), Wheeler, M.W. (author), Taylor, S.L. (author), Houben, G.F. (author), Baumert, J.L. (author)
Food allergy and allergen management are important global public health issues. In 2011, the first iteration of our allergen threshold database (ATDB) was established based on individual NOAELs and LOAELs from oral food challenge in roughly 1750 allergic individuals. Population minimal eliciting dose (EDp) distributions based on this dataset...
article 2020
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Steijn, W.M.P. (author), van Kampen, J.N. (author), van der Beek, D. (author), Groeneweg, J. (author), van Gelder, P.H.A.J.M. (author)
Quantitative Risk Analysis (QRA) is a standard tool in some high-risk industries (such as the on- and offshore exploration and production and chemical industry). Presently, existing knowledge concerning human error likelihood and human reliability assessment is insufficiently represented in QRAs. In this paper we attempt to implement the...
article 2020
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Vijn, A.R.P.J. (author), Baas, O. (author), Lepelaars, E.S.A.M. (author)
The purpose of this article is to estimate the parameters of the Jiles-Atherton hysteresis model, based on minor-loop measurement data in weak applied fields. The well-known hysteresis model by Jiles and Atherton serves as a basis of this article with an extension for the closure of minor loops. In order to represent minor loops correctly, a...
article 2020
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Tajdari, F. (author), Berkhoff, A.P. (author), de Boer, A. (author)
This paper focuses on extensive numerical and experimental investigations of a thin sandwich acoustic source. Due to an energy inefficient actuation design, a thin sandwich acoustic source that was proposed in an early study is redesigned and reconstructed in the current research. The thin acoustic source in the present paper is actuated by long...
article 2020
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Baloch, R.M. (author), Maesano, C.N. (author), Christoffersen, J. (author), Banerjee, S. (author), Gabriel, M. (author), Csobod, E. (author), de Oliveira Fernandes, E. (author), Annesi-Maesano, I. (author)
Substantial knowledge is available on the association of the indoor school environment and its effect among schoolchildren. In the same context, the SINPHONIE (School indoor pollution and health: Observatory network in Europe) conducted a study to collect data and determine the distribution of several indoor air pollutants (IAPs), physical and...
article 2020
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Bezemer, K. (author), McLennan, L. (author), van Duin, L. (author), Kuijpers, C.J. (author), Koeberg, M. (author), van den Elshout, J.J.M.H. (author), van der Heijden, A.E.D.M. (author), Busby, T. (author), Yevdokimov, A. (author), Schoenmakers, P. (author), Smith, J. (author), Oxley, J. (author), van Asten, A. (author)
Erythritol tetranitrate (ETN) was prepared independently by two research groups from the USA and the Netherlands. The partially nitrated impurities present in ETN were studied using liquid chromatography-mass spectrometry to address the ultimate challenge in forensic explosives investigations, i.e., providing chemical and tactical information on...
article 2020
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van Rossum, W.L. (author), Anitori, L. (author)
In this article a novel waveform based on agile (or irregular) pulse intervals is presented as a potential approach to simultaneously resolve both range and Doppler ambiguities using a single burst in radar measurements containing very far away and/or very fast targets. The paper shows that, the combination of irregularly spaced transmitted...
conference paper 2020
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Stevens, L.J. (author), Donkers, J.M. (author), Dubbel, J. (author), Vaes, W.H.J. (author), van de Steeg, E. (author), Knibbe, C.A.J. (author), Alwayn, I.P.J. (author), van de Steeg, E. (author)
To predict the absorption, distribution, metabolism and excretion (ADME) profile of candidate drugs a variety of preclinical models can be applied. The ADME and toxicological behavior of newly developed drugs are often investigated prior to assessment in humans, which is associated with long time-lines and high costs. Therefore, good predictions...
article 2020
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Gilsing, R. (author), Turetken, O. (author), Ozkan, B. (author), Slaats, F. (author), Adali, O.E. (author), Wilbik, A. (author), Berkers, F.T.H.M (author), Grefen, P. (author)
conference paper 2020
Searched for: subject%3A%22parameter%22
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