Searched for: subject:"Statistics"
(1 - 20 of 472)

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Snijder, H.H. (author), Ploegmakers, D. (author), Dekker, R. (author), Maljaars, J. (author)
article 2021
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Gómez, J.F. (author), Shoeibi Omrani, P.S. (author), Belfroid, S.P.C. (author)
In gas wells, decreased/unstable production can occur due to difficult-to-predict dynamic effects resulted from late-life phenomena, such as liquid loading and flooding. To minimize the negative impact of these effects, maximize production and extend the wells’ lifetime, wells are often operated in an intermittent production regime. The goal of...
conference paper 2021
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Butler, F. (author), Lucas Luijckx, N.B. (author), Marvin, H.J.P. (author), Bouzembrak, Y. (author), Mojtahed, V. (author)
Food fraud is of high concern to the food industry. A multitude of analytical technologies exist to detect fraud. However, this testing is often expensive. Available databases detailing fraud occurrences were systematically examined to determine how frequently analytical testing triggered fraud detection. A conceptual framework was developed for...
article 2021
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Willems, R. (author), Willems, F. (author), Simpson, T. (author), Albrecht, B. (author), Deen, N. (author), Somers, B. (author)
CO2 regulations on heavy-duty transport are introduced in essentially all markets within the next decade, in most cases in several phases of increasing stringency. To cope with these mandates, developers of engines and related equipment are aiming to break new ground in the fields of combustion, fuel and hardware technologies. In this work, a...
conference paper 2020
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Franken, R. (author), Heringa, M.B. (author), Oosterwijk, T. (author), dal Maso, M. (author), Fransman, W. (author), Kanerva, T. (author), Liguori, B. (author), Poikkimäki, M. (author), Rodriguez-Llopis, I. (author), Säämänen, A. (author), Stockmann-Juvala, H. (author), Suarez-Merino, B. (author), alstrup Jensen, K. (author), Stierum, R. (author)
The current work describes the interaction with various stakeholder groups to establish consensus on stage-gate specific criteria that human risk assessment (HRA) models for manufactured nanomaterials (MN) need to comply with. During the decisive steps in the innovation process, which can be described in a simplified way as stage-gates, it is...
article 2020
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Müller, R.A.J. (author), von Benda-Beckmann, A.M. (author), Halvorsen, M.B. (author), Ainslie, M.A. (author)
Regulations for underwater anthropogenic noise are typically formulated in terms of peak sound pressure, root-mean-square sound pressure, and (weighted or unweighted) sound exposure. Sound effect studies on humans and other terrestrial mammals suggest that in addition to these metrics, the impulsiveness of sound (often quantified by its kurtosis...
article 2020
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de Weert, J. (author), Smedes, F. (author), Beeltje, H. (author), de Zwart, D. (author), Hamers, T. (author)
article 2020
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Vazquez, A.R. (author), Goos, P. (author), Schoen, E.D. (author)
Definitive screening designs permit the study of many quantitative factors in a few runs more than twice the number of factors. In practical applications, researchers often require a design for m quantitative factors, construct a definitive screening design for more than m factors and drop the superfluous columns. This is done when the number of...
article 2020
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Vo-Thanh, N. (author), Goos, P. (author), Schoen, E.D. (author)
Design of experiments is an effective, generic methodology for problem solving as well as for improving or optimizing product design and manufacturing processes. The most commonly used experimental designs are two-level fractional factorial designs. In recent years, nonregular fractional factorial two-level experimental designs have gained much...
article 2020
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Krone, T. (author), Boessen, R. (author), Bijlsma, S. (author), van Stokkum, R. (author), Clabbers, N.D.S. (author), Pasman, W.J. (author)
Background. N-of-1 designs gain popularity in nutritional research because of the improving technological possibilities, practical applicability and promise of increased accuracy and sensitivity, especially in the field of personalized nutrition. This move asks for a search of applicable statistical methods. Objective. To demonstrate the...
article 2020
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Schoen, E.D. (author), Eendebak, P.T. (author), Goos, P. (author)
A conference design is a rectangular matrix with orthogonal columns, one zero in each column, at most one zero in each row and -1's and +1's elsewhere. A definitive screening design can be constructed by folding over a conference design and adding a row vector of zeroes. We prove that, for a given even number of rows, there is just one...
article 2019
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Scherer, L. (author), de Koning, A. (author), Tukker, A. (author)
The BRIC (Brazil, Russia, India, China) and MINT countries (Mexico, Indonesia, Nigeria, Turkey) shifted the economic weight from developed to emerging countries. They will continue to grow rapidly by population and gross domestic product (GDP), which could also imply environmental changes. We use the environmentally extended multi-regional input...
article 2019
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Hansen, S.G. (author), Meinen, N.E. (author), Jørgensen, H.B. (author)
Assessment of the load‐carrying capacity of existing concrete structures is often based on the concrete compressive strength obtained from drilled cores. These cores are typically drilled perpendicular to the concrete surface, under the assumption that the mechanical properties of the concrete are isotropic. Recent studies however showed that...
conference paper 2019
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Hattendorf, H. (author), Hermse, C.G.M. (author), IJzerman, R.M. (author)
The focus in this study is on very metal dusting resistant nickel chromium alloys with a high content of chromium (in the range of 22 to 33 wt.%), additions of aluminum (between 0 and 3 wt.%) and variable iron content (between 0.1 and 15 wt.%). All samples were exposed up to 5693 h at 600 °C in a 37 vol.% CO, 7 vol.% CO2, 46 vol.% H2, 9 vol.%...
article 2019
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Carton, E.P. (author), Johnsen, B.B. (author), Rahbek, D.B. (author), Broos, J.P.F. (author), Snippe, A. (author)
The depth of penetration (DOP) method is a well-known ballistic test method for characterisation and ranking of ceramic armour materials. The ceramic tile is bonded to a backing material of semi-infinite thickness, and the penetration depth of the projectile gives a measure of the performance of the ceramic. There is, however, an inherent...
article 2019
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Atukunda, P. (author), Muhoozi, G.K.M. (author), van den Broek, T.J. (author), Kort, R. (author), Diep, L.M. (author), Kaaya, A.N. (author), Iversen, P.O. (author), Westerberg, A.C. (author)
Background Undernutrition impairs child development outcomes and growth. In this follow-up study of an open cluster-randomized intervention trial we examined the effects of an education package delivered to mothers in rural Uganda on their children's development, growth and gut microbiota at 36 months of age. Methods The parental trial included...
article 2019
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Bakker, M.H. (author), Kerstholt, J.H. (author), van Bommel, M. (author), Giebels, E. (author)
Decision-making during a crisis is affected by several sources of information and prior knowledge, such as factual (statistical) information, narratives of others, and real-time governmental messages. The present study investigated how two types of information (statistics and narratives) influence helping behavior after the occurrence of a...
article 2019
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D. (author), de Jong, N. (author), Pertijs, M. (author), Verweij, M. (author)
Typically, ultrasonic flow meters assume linear wave propagation. Nevertheless, if the transducers of an ultrasonic flow sensor excite a pressure wave with a high amplitude, nonlinear wave propagation effects become significant. The appearance of higher harmonics increases the bandwidth of the received signal, which may potentially lead to a...
conference paper 2018
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H.B. (author)
Estimating and reducing uncertaintyin fatigue test data analysis is a relevant task in order to assess the reliability of a structural connection with respect to fatigue. Several statistical models have been proposed in the literature with the aim of representing the stress range vs. endurance trend of fatigue test data under constant amplitude...
conference paper 2018
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von Benda-Beckmann, A.M. (author), Thomas, L. (author), Tyack, P.L. (author), Ainslie, M.A. (author)
Passive acoustic monitoring with widely-dispersed hydrophones has been suggested as a cost-effective method to monitor population densities of echolocating marine mammals. This requires an estimate of the area around each receiver over which vocalizations are detected - the "effective detection area" (EDA). In the absence of auxiliary...
article 2018
Searched for: subject:"Statistics"
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