Searched for: subject:"process"
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Adatrao, S. (author), Sciacchitano, A. (author)
A novel approach is introduced that allows the elimination of undesired laser light reflections from particle image velocimetry (PIV) images. The approach relies upon anisotropic diffusion of the light intensity, which is used to generate a background image to be subtracted from the original image. The intensity is diffused only along the...
journal article 2019
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Narayanan, Prasobh (author), Verhagen, W.J.C. (author), Dhanisetty, V.S.V. (author)
Airline operators face accidental damages on their fleet of aircraft as part of operational practice. Individual occurrences are hard to predict; consequently, the approach towards repairing accidental damage is reactive in aircraft maintenance practice. However, by aggregating occurrence data and predicting future occurrence rates, it is...
journal article 2019
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Gebremicael, T.G. (author), Abbas Mohamedali, Y. (author), van der Zaag, P. (author)
Understanding the relationship between hydrological processes and environmental changes is important for improved water management. The Geba catchment in Ethiopia, forming the headwaters of Tekeze-Atbara basin, was known for its severe land degradation before the recent success in integrated watershed management. This study analyses the...
journal article 2019
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Gama, F. (author), Marques, Antonio G. (author), Leus, G.J.T. (author), Ribeiro, Alejandro (author)
Two architectures that generalize convolutional neural networks (CNNs) for the processing of signals supported on graphs are introduced. We start with the selection graph neural network (GNN), which replaces linear time invariant filters with linear shift invariant graph filters to generate convolutional features and reinterprets pooling as a...
journal article 2019
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Ibrahim, Raed Khalaf (author), Watson, S.J. (author), Djurović, Siniša (author), Crabtree, C.J. (author)
Determining the magnitude of particular fault signature components (FSCs) generated by wind turbine (WT) faults from current signals has been used as an effective way to detect early abnormalities. However, the WT current signals are time varying due to the constantly varying generator speed. The WT frequently operates with the generator...
journal article 2018
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Okello, Aline M.L.Saraiva (author), Masih, Ilyas (author), Uhlenbrook, S. (author), Jewitt, Graham P.W. (author), van der Zaag, P. (author)
The variability of rainfall and climate, combined with land use and land cover changes, and variation in geology and soils makes it a difficult task to accurately describe the key hydrological processes in a catchment. With the aim to better understand the key hydrological processes and runoff generation mechanisms in the semi-arid meso-scale...
journal article 2018
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Veer, F.A. (author), Bristogianni, T. (author), Justino de Lima, C.L. (author)
The classical image of glass is that of a rigid, transparent brittle material characterized by a non-crystalline microstructure. This 19th and 20th century image however is mostly based on the contrast between soda lime glass and metals. It does not really make sense in the 21th century where more modern testing methods have increased our...
journal article 2018
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Palardy, Genevieve (author), Shi, H. (author), Levy, Arthur (author), Le Corre, Steven (author), Fernandez Villegas, I. (author)
Ultrasonic welding of thermoplastic composite materials is a promising joining technique that is now moving towards up-scaling, i.e. the assembling of large industrial parts. Despite its growing technological maturation, the assumed physical mechanisms underlying ultrasonic heating (viscoelastic heating, friction) are still insufficiently...
journal article 2018
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Tifkitsis, K. I. (author), Mesogitis, T. S. (author), Struzziero, G. (author), Skordos, A. A. (author)
A stochastic multi-objective cure optimisation methodology is developed in this work and applied to the case of thick epoxy/carbon fibre laminates. The methodology takes into account the uncertainty in process parameters and boundary conditions and minimises the mean values and standard deviations of cure time and temperature overshoot....
journal article 2018
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Poltorak, L. (author), Oonk, S. (author), Sudholter, Ernst J. R. (author), de Puit, M. (author)
The behaviour of acid phosphatase at an electrified liquid–liquid interface was studied in this work. It was found that only the protonated form of the protein can undergo interfacial adsorption which is affected by the pH of the aqueous phase. With ion transfer voltammetry we could detect acid phosphatase in concentrations as low as 0.1 μM....
journal article 2018
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Guan, X. (author), van Oosterom, P.J.M. (author), Cheng, Bo (author)
Because of their locality preservation properties, Space-Filling Curves (SFC) have been widely used in massive point dataset management. However, the completeness, universality, and scalability of current SFC implementations are still not well resolved. To address this problem, a generic n-dimensional (nD) SFC library is proposed and...
journal article 2018
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Sun, Z. (author), Yi, Junyan (author), Feng, Decheng (author), Kasbergen, C. (author), Scarpas, Athanasios (author), Zhu, Yiming (author)
Bio-oil produced during the production of biodiesel is a burden to the environment. Recycling and utilization of bio-oil as a substitute for pavement bitumen can help to build an environmentally-friendly and clean infrastructure. In this study, the bio-bitumen was prepared by bio-oil based on free radical polymerization. Different kinds of...
journal article 2018
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Feng, R. (author), Luthi, S.M. (author), Gisolf, A. (author), Angerer, Erika (author)
In this paper, geological prior information is incorporated in the classification of reservoir lithologies after the adoption of Markov random fields (MRFs). The prediction of hidden lithologies is based on measured observations, such as seismic inversion results, which are associated with the latent categorical variables, based on the...
journal article 2018
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Volker, L. (author)
In reaction to the recent call for critical debate in the field of construction management research, I argue that we should embrace the richness of adjacent fields of study in order to dynamically develop our own and face the plethora of contemporary societal challenges that exist in our industry. I introduce the concepts of other-than...
journal article 2018
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Yang, Yang (author), Li, Diquan (author), Tong, Tiegang (author), Zhang, D. (author), Zhou, Yatong (author), Chen, Yangkang (author)
Strong noise is one of the toughest problems in the controlled-source electromagnetic (CSEM) method, which highly affects the quality of recorded data. The three main types of noise existing in CSEM data are periodic noise, Gaussian white noise, and nonperiodic noise, among which the nonperiodic noise is thought to be the most difficult to...
journal article 2018
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Sun, Yimin (author), Verschuur, D.J. (author)
In this paper, we propose a novel three-dimensional receiver deghosting algorithm that is capable of deghosting both horizontal and slanted streamer data in a theoretically consistent manner. Our algorithm honours wave propagation phenomena in a true three-dimensional sense and frames the three-dimensional receiver deghosting problem as a Lasso...
journal article 2018
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Casson Moreno, Valeria (author), Reniers, G.L.L.M.E. (author), Salzano, Ernesto (author), Cozzani, Valerio (author)
Security threats are becoming an increasing concern for chemical sites and related infrastructures where relevant quantities of hazardous materials are processed, stored or transported. In the present study, security related events that affected chemical and process sites, and related infrastructures, were investigated. The aim of the study...
journal article 2018
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Reinoso Rondinel, R. (author), Unal, C.M.H. (author), Russchenberg, H.W.J. (author)
estimation requires a substantial amount of range smoothing as a result of the noisy characteristic of the measured...
journal article 2018
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Guatame Garcia, L.A. (author), Buxton, M.W.N. (author), Deon, F. (author), Lievens, Caroline (author), Hecker, Chris (author)
In the production of calcined kaolin, the on-line monitoring of the calcination reaction is becoming more relevant for the generation of optimal products. In this context, this study aimed to assess the suitability of using infrared (IR) spectroscopy as a potential technique for the on-line characterization of the
calcination of kaolin. The...
journal article 2018
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Wahyudi, A. (author), Kuk, George (author), Janssen, M.F.W.H.A. (author)
Data seldom create value by themselves. They need to be linked and combined from multiple sources, which can often come with variable data quality. The task of improving data quality is a recurring challenge. In this paper, we use a case study of a large telecom company to develop a generic process pattern model for improving data quality....
journal article 2018
Searched for: subject:"process"
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