Collection: research
(1 - 20 of 46,408)

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Hu, Y. (author), Leus, G.J.T. (author)

Estimation problems in the presence of deterministic linear nuisance parameters arise in a variety of fields. To cope with those, three common methods are widely considered: (1) jointly estimating the parameters of interest and the nuisance parameters; (2) projecting out the nuisance parameters; (3) selecting a reference and then taking...

journal article 2017
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Gallos, Lazaros K. (author), Korczynski, M.T. (author), Fefferman, Nina H. (author)

Early detection of traffic anomalies in networks increases the probability of effective intervention/mitigation actions, thereby improving the stability of system function. Centralized methods of anomaly detection are subject to inherent constraints: (1) they create a communication burden on the system, (2) they impose a delay in detection...

journal article 2017
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Morales Napoles, O. (author), Paprotny, D. (author), Worm, D (author), Abspoel, L (author), Courage, W (author)
In this paper two methodologies are investigated that contribute to better assessment of risks related to extreme rainfall events. Firstly, one-parameter bivariate copulas are used to analyze rain gauge data in the Netherlands. Out of three models considered, the Gumbel copula, which indicates upper tail dependence, represents the data most...
journal article 2017
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Jäger, W.S. (author), Morales Napoles, O. (author)
Stochastic descriptions and simulations of oceanographic variables are essential for coastal and marine engineering applications. In the past decade, copula-based approaches have become increasingly popular for estimating the multivariate distribution of some variables at the peak of a storm along with its duration. The modeling of the storm...
journal article 2017
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Cats, O. (author), Koppenol, Gert Jaap (author), Warnier, Martijn (author)

Network robustness refers to as the capacity to absorb disturbances with a minimal impact on system performance. Notwithstanding, network robustness assessment has been mostly confined to the analysis of complete link breakdown based on topological metrics. We propose reliability indicators that encompass changes in network performance with...

journal article 2017
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Mei, Ran (author), Nobu, Masaru K. (author), Narihiro, Takashi (author), Kuroda, Kyohei (author), Munoz Sierra, J.D. (author), Wu, Zhuoying (author), Ye, Lin (author), Lee, Patrick K.H. (author), Lee, P.H.L. (author), van Lier, J.B. (author), McInerney, Michael J. (author), Kamagata, Yoichi (author), Liu, Wen Tso (author)

Anaerobic digester (AD) microbiomes harbor complex, interacting microbial populations to achieve biomass reduction and biogas production, however how they are influenced by operating conditions and feed sludge microorganisms remain unclear. These were addressed by analyzing the microbial communities of 90 full-scale digesters at 51 municipal...

journal article 2017
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Paundra, Joshua (author), Rook, L. (author), van Dalen, Jan (author), Ketter, Wolfgang (author)

Car sharing services gain momentum as a potential alternative to various modes of transportation, including privately owned cars. This trend goes hand in hand with a renewed interest in the sharing economy, which has as essential premise that product ownership is of minor relevance. Using an online experiment, this study investigates if...

journal article 2017
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Zhao, J. (author), Peng, Gai Fei (author), van Breugel, K. (author)

High-performance concrete (HPC) is vulnerable to spalling under high temperature conditions and it has been found that the heating rate can exert a tremendous effect on spalling of HPC. To prevent HPC from spalling, the heating rate effect should be understood. However, quantitative analyses are still lacking and the heating rate effect has...

journal article 2017
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Ma, Y. (author), Markine, V.L. (author), Mashal, AA (author), Ren, M (author)
Verification of the explicit finite element (FE) model with realistic wheel-rail profiles against the CONTACT model, which has not been sufficiently discussed, is performed by comparing the resulting shear stress, slip-adhesion area, etc., obtained from the two models. The follow-up studies using the verified FE model on the influence of the...
journal article 2017
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Post, W. (author), Kersemans, M. (author), Solodov, I. (author), Van Den Abeele, K. (author), Garcia Espallargas, Santiago J. (author), van der Zwaag, S. (author)

A comparative study is performed on the monitoring of delamination healing in CFRP-ionomer sandwich composites by non-destructive techniques and destructive compression testing. Artificial delaminations of various areal dimensions and nature were introduced during production of the composites. The extent of the delamination and the healing...

journal article 2017
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Kwakkel, J.H. (author)

There is a growing interest in model-based decision support under deep uncertainty, reflected in a variety of approaches being put forward in the literature. A key idea shared among these is the use of models for exploratory rather than predictive purposes. Exploratory modeling aims at exploring the implications for decision making of the...

journal article 2017
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Wang, W. (author), Rans, C.D. (author), Benedictus, R. (author)

This paper proposes an analytical model for predicting the non-symmetric crack growth and accompanying delamination growth in FMLs. The general approach of this model applies Linear Elastic Fracture Mechanics, the principle of superposition, and displacement compatibility based on the understanding of deformation behaviour in eccentrically...

journal article 2017
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Werter, N.P.M. (author)
In order to accommodate the growth in air traffic whilst reducing the impact on the environment, operational efficiency is becoming more and more important in the design of the aircraft of the future. A possible approach to increase the operational efficiency of aircraft wings is the use of aeroelastic tailoring, by taking advantage of the...
doctoral thesis 2017
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Matthes, Sigrun (author), Grewe, V. (author), Dahlmann, Katrin (author), Frömming, Christine (author), Irvine, Emma (author), Lim, Ling (author), Linke, Florian (author), Lührs, Benjamin (author), Owen, Bethan (author), Shine, Keith (author), Stromatas, Stavros (author), Yamashita, Hiroshi (author), Yin, F. (author)
Comprehensive assessment of the environmental aspects of flight movements is of increasing interest to the aviation sector as a potential input for developing sustainable aviation strategies that consider climate impact, air quality and noise issues simultaneously. However, comprehensive assessments of all three environmental aspects do not yet...
journal article 2017
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van Daal-Rombouts, P.M.M. (author)
This thesis deals with real time control (RTC) in urban wastewater systems, where
urban wastewater systems are defined as a combination of combined sewer systems and wastewater treatment plants (WWTPs). Urban wastewater systems discharge, through combined sewer over flows (CSOs) and WWTP effluent, onto the receiving waters. Receiving waters...
doctoral thesis 2017
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Multifunctional flood defenses protect areas against flooding, but
serve other functions as well. Although these types of defenses
can be seen almost everywhere, they pose special technical and
governance challenges.

This book is about a unique interdisciplinary research program
developed to tackle some of the issues...
book 2017
document
Cordova Chavez, M.E. (author)
Crude oil, coal and gas are currently the main resources of energy in the world. The World Energy Outlook claimed in 2007 that the major source of energy (about 84%) would still be generated from fossil fuels in 2030. By these projections, the world's fossil fuel reserves will be consumed within a few decades, making it necessary to have a well...
doctoral thesis 2017
document
Arce León, C.A. (author)
The flow near the surface, and the acoustic emissions of trailing edge serrations are investigated in this work. The use of this family of aerodynamic devices on airfoils is intended for the reduction of turbulent boundary layer-trailing edge noise (TBL-TE noise). This purpose has been well demonstrated in wind tunnel and numerical experiments....
doctoral thesis 2017
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Jain, K.P. (author)
The end of life of a ship is determined by its owner on the basis of various commercial and technical factors. Once decided to scrap a ship, almost all end-of-life (EOL) ships are sold to recycling yards for dismantling; except for a few which are converted into museums, hotels, storage, and artificial reefs. As the decision is a commercial one,...
doctoral thesis 2017
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Rahman, M.M. (author)
The principle of Subsurface Arsenic (As) Removal (SAR) is to extract anoxic groundwater, aerate it and reinject it. Oxygen in the injected water reacts with iron in the resident groundwater to form hydrous ferric oxide (HFO). Dissolved As sorbs onto the HFO, which allows for the extraction of groundwater with lower As concentrations.
doctoral thesis 2017
Collection: research
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