Collection: research
(121 - 140 of 45,833)

Pages

document
Ghit, B.I. (author)
Data analytics frameworks enable users to process large datasets while hiding the complexity of scaling out their computations on large clusters of thousands of machines. Such frameworks parallelize the computations, distribute the data, and tolerate server failures by deploying their own runtime systems and distributed filesystems on subsets of...
doctoral thesis 2017
document
van den Brom, P.I. (author), Meijer, A. (author), Visscher, H.J. (author)

The difference between actual and calculated energy is called the ‘energy-performance gap’. Possible explanations for this gap are construction mistakes, improper adjusting of equipment, excessive simplification in simulation models and occupant behaviour. Many researchers and governmental institutions think the occupant is the main cause of...

journal article 2017
document
Liao, F. (author), Molin, E.J.E. (author), van Wee, G.P. (author)

Widespread adoption of electric vehicles (EVs) may contribute to the alleviation of problems such as environmental pollution, global warming and oil dependency. However, the current market penetration of EV is relatively low in spite of many governments implementing strong promotion policies. This paper presents a comprehensive review of...

journal article 2017
document
De Bruijn, F.J. (author)
doctoral thesis 2017
document
Willems, C.J.L. (author)
Huge amounts of heat are stored in sedimentary aquifers in the Dutch subsurface. The amount of heat would be sufficient to provide our national heat demand for decades without any greenhouse gas emissions. Exploitation of this type of resource started some 10 years ago in the Netherlands. In 2016, 16 geothermal doublet systems had been installed...
doctoral thesis 2017
document
van de Graaf, A.V. (author)
The numerical simulation of brittle failure at structural level with nonlinear finite
element analysis (NLFEA) remains a challenge due to robustness issues. We attribute these problems to the dimensions of real-world structures combined with softening behavior and negative tangent stiffness at local level which may lead to non-convergence, i...
doctoral thesis 2017
document
Benschop, H.O.G. (author), Breugem, W.P. (author)
A bird-feather-inspired herringbone riblet texture was investigated for turbulent drag reduction. The texture consists of blade riblets in a converging/diverging or herringbone pattern with spanwise wavelength Λf. The aim is to quantify the drag change for this texture as compared to a smooth wall and to study the underlying mechanisms. To that...
journal article 2017
document
Kamperman, T. (author), Henke, S. (author), Zoetebier, B. (author), Ruiterkamp, N. (author), Wang, R. (author), Pouran, B. (author), Weinans, H.H. (author), Karperien, M. (author), Leijten, J (author)
In situ gelation of water-in-oil polymer emulsions is a key method to produce hydrogel particles. Although this approach is in principle ideal for encapsulating bioactive components such as cells, the oil phase can interfere with straightforward presentation of crosslinker molecules. Several approaches have been developed to induce in-emulsion...
journal article 2017
document
Biljecki, F. (author)
The concept of level of detail (LOD) describes the content of 3D city models and it plays an essential role during their life cycle. On one hand it comes akin to the concepts of scale in cartography and LOD in computer graphics, on the other hand it is a standalone concept that requires attention. LOD has an influence on tendering and...
doctoral thesis 2017
document
Cheraghi, Saeid (author), White, Donald J. (author), Draganov, D.S. (author), Bellefleur, Gilles (author), Craven, James A. (author), Roberts, Brian (author)

Seismic reflection interferometry has recently been tested in a few resource-exploration applications. We have evaluated passive seismic interferometry results for data from the Aquistore CO2 storage site, Saskatchewan, Canada, with the objective of testing the method's ability to image the subsurface geology and its potential for...

journal article 2017
document
Lottman, B.B.G. (author)
--- ENGLISH VERSION --- The spalling damage observed to concrete structures after severe fire exposure has been the topic of scientific research for the past decades. This phenomenon is commonly characterised by the sudden and in some cases violent breaking off of concrete pieces from the cross-section. In this thesis the derivation and the...
doctoral thesis 2017
document
Abraham, E. (author), Blokker, EJM (author), Stoianov, Ivan (author)
In this paper, we consider the proactive control of flow velocities to maximise the self-cleaning capacity of the drinking water distribution systems under normal operations both through a change of the network topology and through an optimal control of pressure reducing valve (PRV) settings. Inspired by line outage flow distribution in...
journal article 2017
document
Korthals Altes, W.K. (author)

Landscape protection in metropolitan areas is an ongoing activity that lies outside the remit of political office-holders. As political agendas change, the importance of landscape protection on strategic planning agendas may also change. This paper raises the question whether this strategic level of landscape protection ought to rest on rules...

journal article 2017
document
Hernández, S. (author), Amin Farkhondehfal, M. (author), Sastre, Francesc (author), Makkee, M. (author), Saracco, G. (author), Russo, Nunzio (author)
The CO2 that comes from the use of fossil fuels accounts for about 65% of the global greenhouse gases emissions, and it plays a critical role in global climate changes. Among the different strategies that have been considered to address the storage and reutilization of CO2, the transformation of CO2 into chemicals or fuels with a high added...
journal article 2017
document
Kamps, Xavier (author), de Vries, Henk (author), van de Kaa, G. (author)

Standards consortia develop technical standards or specifications and promote these to reach market dominance. Research on competing standards has explored either firm-level or standard-level factors, but the dynamics of standards consortia and their survival have remained largely understudied. The pre- and post-competitive phase of standards...

journal article 2017
document
Mulder, W.A. (author)

The presence of topography poses a challenge for seismic modeling with finite-difference codes. The representation of topography by means of an air layer or vacuum often leads to a substantial loss of numerical accuracy. A suitable modification of the finite-difference weights near the free surface can decrease that error. An existing...

journal article 2017
document
Dong, J. (author), Fernandez Fueyo, E. (author), Li, Jingbo (author), Guo, Zheng (author), Renirie, Rokus (author), Wever, Ron (author), Hollmann, F. (author)
The vanadium-dependent chloroperoxidase from Curvularia inaequalis is a stable and efficient biocatalyst for the hydroxyhalogenation of a broad range of alkenes into halohydrins. Up to 1 200 000 TON with 69 s−1 TOF were observed for the biocatalyst. A bienzymatic cascade to yield epoxides as reaction products is presented.
journal article 2017
document
Hagen, W.R. (author), Hagedoorn, P.L. (author), Honarmand Ebrahimi, K. (author)
Biochemistry of the essential element iron is complicated by radical chemistry associated with Fe(II) ions and by the extremely low solubility of the Fe(III) ion in near-neutral water. To mitigate these problems cells from all domains of life synthesize the protein ferritin to take up and oxidize Fe(II) and to form a soluble storage of Fe(III)...
journal article 2017
document
Bavykina, A.V. (author), Mautscke, H.H. (author), Makkee, M. (author), Kapteijn, F. (author), Gascon Sabate, J. (author), Llabres i Xamena, FX (author)
Isomerisation of allylic alcohols to saturated ketones can be efficiently catalysed by a heterogeneous molecular system resulting from IrIIICp* anchoring to a covalent triazine framework. The obtained catalysts are active, selective, and fully recyclable.
journal article 2017
document
Bannenberg, L.J. (author), Kakurai, K. (author), Falus, P (author), Lelievre-Berna, E (author), Dalgliesh, RM (author), Dewhurst, C. D. (author), Qian, F. (author), Onose, Y (author), Endoh, Y. (author), Tokura, Y. (author), Pappas, C. (author)
We present a comprehensive Small Angle Neutron Scattering (SANS) and Neutron Spin Echo Spectroscopy (NSE) study of the structural and dynamical aspects of the helimagnetic transition in Fe1-xCoxSi with x = 0.30. In contrast to the sharp transition observed in the archetype chiral magnet MnSi, the transition in Fe1-x<...
journal article 2017
Collection: research
(121 - 140 of 45,833)

Pages