Collection: research
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Wang, Z. (author), Turteltaub, S.R. (author), Abdalla, M.M. (author)

This work is concerned with the development of a framework to solve shape optimization problems for transient heat conduction problems within the context of isogeometric analysis (IGA). A general objective functional is used to accommodate both shape optimization and passive control problems under transient conditions. An adjoint sensitivity...

journal article 2017
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Garufo, A. (author)
In recent years, Terahertz technology has attracted the interest of researchers for its potential applications in a variety of domains. In particular, THz sensing has found application in security screening, medical imaging, spectroscopy, and non-destructive testing. The emergence of all these applications has been driven by the availability of...
doctoral thesis 2017
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Bisdom, K. (author), Maghami Nick, Hamidreza M. (author), Bertotti, G. (author)

Fluid flow in naturally fractured reservoirs is often controlled by subseismic-scale fracture networks. Although the fracture network can be partly sampled in the direct vicinity of wells, the inter-well scale network is poorly constrained in fractured reservoir models. Outcrop analogues can provide data for populating domains of the...

journal article 2017
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Wei, X. (author)
Estuaries are important ecosystems accommodating a large variety of living species. Estuaries are also important to people by their demand of freshwater for drinking, irrigation, and industry. Due to natural changes and human activities, the estuarine water quality, influenced by both salinity and turbidity (the cloudiness or haziness of water),...
doctoral thesis 2017
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Zhu, Z. (author), La Rocca, G. (author), van Tooren, M.J.L. (author)

Harness 3D routing is one of the most challenging steps in the design of aircraft Electrical Wiring Interconnection System (EWIS). This is due not only to the intrinsic complexity of the EWIS, but also to the increasing number of applying design constraints and its dependency on any change in the design of the airframe and installed systems....

journal article 2017
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Scheper, K.Y.W. (author), de Croon, G.C.H.E. (author)
One of the major challenges of evolutionary robotics is to transfer robot controllers evolved in simulation to robots in the real world. In this article, we investigate abstraction of the sensory inputs and motor actions as a tool to tackle this problem. Abstraction in robots is simply the use of preprocessed sensory inputs and low-level closed...
journal article 2017
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Zhang, S. (author), Zeng, X. (author), Matthews, D. T A (author), Igartua, A. (author), Rodriguez-Vidal, E. (author), Contreras Fortes, J. (author), van der Heide, E. (author), van der Heide, Emile (author)

Tactile perception is a complex system, which depends on frictional interactions between skin and counter-body. The contact mechanics of tactile friction is governed by many factors such as the state and properties of skin and counter-body. In order to discover the connection between perception and tactile friction on textured stainless steel...

journal article 2017
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Mathew, R. (author), Winterwerp, J.C. (author)

Numerical models of fine sediment transport depend on different approaches to parameterize the erosion properties of surficial sediment strata. These properties, namely the critical shear stress for erosion and the erosion rate coefficient, are crucial for reproducing the short-term and long-term sediment dynamics of the system. Methods to...

journal article 2017
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Munoz Sierra, J.D. (author), Lafita Lopez, C. (author), Gabaldón, Carmen (author), Spanjers, H.L.F.M. (author), van Lier, J.B. (author)

Biomass requires trace metals (TM) for maintaining its growth and activity. This study aimed to determine the effect of TM supplementation and partitioning on the specific methanogenic activity (SMA), with a focus on cobalt and tungsten, during the start-up of two lab-scale Anaerobic Membrane Bioreactors (AnMBRs) treating saline phenolic...

journal article 2017
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Deng, X. (author), Qian, Zhiwei (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)

The half-space assumption has been employed in many solution methods for non-conforming contact problems in elasticity such as the Hertz theory and the Kalker's variational theory. It is generally believed that to guarantee acceptable accuracy in these half-space-based methods, the characteristic size (twice length of one semi-axis) of the...

journal article 2017
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Sarna, K. (author), Russchenberg, H.W.J. (author)

The representation of aerosol-cloud interaction (ACI) processes in climate models, although long studied, still remains the source of high uncertainty. Very often there is a mismatch between the scale of observations used for ACI quantification and the ACI process itself. This can be mitigated by using the observations from groundbased remote...

journal article 2017
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Singh, Umesh (author), Crosato, A. (author), Giri, Sanjay (author), Hicks, Murray (author)

The effects of sediment heterogeneity and sediment mobility on the morphology of braided rivers are still poorly studied, especially when the partial sediment mobility occurs. Nevertheless, increasing the bed sediment heterogeneity by coarse sediment supply is becoming a common practice in river restoration projects and habitat improvement...

journal article 2017
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Schenkeveld, V. M.Erik (author), Jaross, Glen (author), Marchenko, Sergey (author), Haffner, David (author), Kleipool, Quintus L. (author), Rozemeijer, Nico C. (author), Veefkind, J.P. (author), Levelt, P.F. (author)

The Dutch-Finnish Ozone Monitoring Instrument (OMI) is an imaging spectrograph flying on NASA's EOS Aura satellite since 15 July 2004. OMI is primarily used to map trace-gas concentrations in the Earth's atmosphere, obtaining mid-resolution (0.4-0.6 nm) ultraviolet-visible (UV-VIS; 264-504 nm) spectra at multiple (30-60) simultaneous fields...

journal article 2017
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Kooijman, G. (author), Lopes, Wilton (author), Zhou, Z. (author), Guo, H. (author), de Kreuk, M.K. (author), Spanjers, H.L.F.M. (author), van Lier, J.B. (author)

In this work, we investigated the effects of flocculation aid (FA) addition to an anaerobic dynamic membrane bioreactor (AnDMBR) (7 L, 35°C) treating waste-activated sludge (WAS). The experiment consisted of three distinct periods. In period 1 (day 1–86), the reactor was operated as a conventional anaerobic digester with a solids retention...

journal article 2017
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Paz, Pavel Z.S. (author), Hollmann, Thomas H. (author), Kermen, Efe (author), Chapiro, G. (author), Slob, E.C. (author), Zitha, P.L.J. (author)

We report a study of heavy oil recovery by combined water flooding and electromagnetic (EM) heating at a frequency of 2.45 GHz used in domestic microwave ovens. A mathematical model describing this process was developed. Model equations were solved, and the solution is presented in an integral form for the one-dimensional case. Experiments...

journal article 2017
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Siva, Vidushini (author), Hoppe, T. (author), Jain, M (author)
The building sector in Singapore consumes up to half of the nation’s total energy. The government has therefore been urging the transformation of the industry by targeting 80% of all buildings to be green-certified by 2030. Thus far, Singapore has done relatively well, and is widely viewed as frontrunner in this respect. This paper addresses the...
journal article 2017
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Samiei Esfahany, S. (author)
During the last decades, time-series interferometric synthetic aperture radar (InSAR) has emerged as a powerful technique to measure various surface deformation phenomena of the earth. Early generations of time-series InSAR methodologies, i.e. Persistent Scatterer Interferometry (PSI), focused on point targets, which are mainly man-made features...
doctoral thesis 2017
document
Latifi, M. (author)
doctoral thesis 2017
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Ekelund, S (author), van Duin, P (author), Jorissen, A (author), Ankersmit, B (author), Groves, R.M. (author)

Museum objects are often highly complex and composed of materials with varying properties, some of which may have changed as a result of ageing and/or conservation treatments. Research into defining sustainable environmental conditions by balancing energy cost and risk to these vulnerable objects has mainly focused on experiments in...

journal article 2017
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Srirangam Narashiman, A.U.N. (author)
The rapid pace of urbanization has an impact on climate change and other environmental issues. Currently, 54% of the global population lives in cities accounting for two-thirds of global energy demand. Sustainable energy generation and consumption is the top humanity’s problem for the next 50 years. Faced with rising urban population and the...
doctoral thesis 2017
Collection: research
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