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Residual stress effects of a fatigue crack on guided lamb waves

Martinez, M.J. (author), Pant, S (author), Yanishevsky, M (author), Backman, D (author)

Structural health monitoring has focused on the use of computational models to capture the effect of crack-like discontinuities on the behaviour of acoustic-ultrasonic signals. However, few models have taken into account the effect of geometric complexity in combination with residual stresses generated during the fatigue crack growth (FCG)...

journal article 2017

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Evaluating degradation at railway crossings using axle box acceleration measurements

Wei, Z. (author), Nunez, Alfredo (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)

In this paper, we investigate the capability of an axle box acceleration (ABA) system to evaluate the degradation at railway crossings. For this purpose, information from multiple sensors, namely, ABA signals, 3D rail profiles, Global Positioning System (GPS) and tachometer recordings, was collected from both nominal and degraded crossings....

journal article 2017

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Implications of Warm Rain in Shallow Cumulus and Congestus Clouds for Large-Scale Circulations

Nuijens, Louise (author), Emanuel, Kerry (author), Masunaga, Hirohiko (author), L’Ecuyer, Tristan (author)

Space-borne observations reveal that 20–40% of marine convective clouds below the freezing level produce rain. In this paper we speculate what the prevalence of warm rain might imply for convection and large-scale circulations over tropical oceans. We present results using a two-column radiative–convective model of hydrostatic, nonlinear flow...

journal article 2017

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Ferroelectricity and piezoelectricity in soft biological tissue: Porcine aortic walls revisited

Lenz, Thomas (author), Hummel, Regina (author), Katsouras, Ilias (author), Groen, W.A. (author), Nijemeisland, M. (author), Ruemmler, Robert (author), Schäfer, Michael K.E. (author), de Leeuw, D.M. (author)

Recently reported piezoresponse force microscopy (PFM) measurements have proposed that porcine aortic walls are ferroelectric. This finding may have great implications for understanding biophysical properties of cardiovascular diseases such as arteriosclerosis. However, the complex anatomical structure of the aortic wall with different...

journal article 2017

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Metabolic adjustment upon repetitive substrate perturbations using dynamic ¹³C-tracing in yeast

Suarez Mendez, C.A. (author), Ras, C. (author), Wahl, S.A. (author)

Background: Natural and industrial environments are dynamic with respect to substrate availability and other conditions like temperature and pH. Especially, metabolism is strongly affected by changes in the extracellular space. Here we study the dynamic flux of central carbon metabolism and storage carbohydrate metabolism under dynamic feast...

journal article 2017

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A concept for multi-criteria environmental assessment of aircraft trajectories

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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The predictability of reported drought events and impacts in the Ebro Basin using six different remote sensing data sets

Linés, Clara (author), Werner, Micha (author), Bastiaanssen, W.G.M. (author)

The implementation of drought management plans contributes to reduce the wide range of adverse impacts caused by water shortage. A crucial element of the development of drought management plans is the selection of appropriate indicators and their associated thresholds to detect drought events and monitor the evolution. Drought indicators...

journal article 2017

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The effect of sediment loading in Fennoscandia and the Barents Sea during the last glacial cycle on glacial isostatic adjustment observations

van der Wal, W. (author), Ijpelaar, Thijs (author)

Models for glacial isostatic adjustment (GIA) routinely include the effects of meltwater redistribution and changes in topography and coastlines. Since the sediment transport related to the dynamics of ice sheets may be comparable to that of sea level rise in terms of surface pressure, the loading effect of sediment deposition could cause...

journal article 2017

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Draft genome sequence of Dethiobacter alkaliphilus strain AHT1^T, a gram-positive sulfidogenic polyextremophile

Melton, Emily Denise (author), Sorokin, Dimitry Y. (author), Overmars, Lex (author), Lapidus, Alla L. (author), Pillay, Manoj (author), Ivanova, Natalia (author), del Rio, Tijana Glavina (author), Kyrpides, Nikos C. (author), Woyke, Tanja (author), Muyzer, Gerard (author)

Dethiobacter alkaliphilus strain AHT1^T is an anaerobic, sulfidogenic, moderately salt-tolerant alkaliphilic chemolithotroph isolated from hypersaline soda lake sediments in northeastern Mongolia. It is a Gram-positive bacterium with low GC content, within the phylum Firmicutes. Here we report its draft genome sequence, which...

journal article 2017

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Switching between Plasmonic and Fluorescent Copper Sulfide Nanocrystals

van der Stam, W. (author), Gudjónsdóttir, S. (author), Evers, W.H. (author), Houtepen, A.J. (author)

Control over the doping density in copper sulfide nanocrystals is of great importance and determines its use in optoelectronic applications such as NIR optical switches and photovoltaic devices. Here, we demonstrate that we can reversibly control the hole carrier density (varying from >10²² cm^-3 to intrinsic) in...

journal article 2017

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An improved version of Chubanov's method for solving a homogeneous feasibility problem

Roos, C. (author)

We deal with a recently proposed method of Chubanov [A polynomial projection algorithm for linear feasibility problems. Math. Program. 153 (2015), pp. 687–713] for solving linear homogeneous systems with positive variables. Some improvements of Chubanov's method and its analysis are presented. We propose a new and simple cut criterion and...

journal article 2017

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Symmetric solutions of evolutionary partial differential equations

Bruell, G. (author), Ehrnström, Mats (author), Geyer, A. (author), Pei, Long (author)

We show that for a large class of evolutionary nonlinear and nonlocal partial differential equations, symmetry of solutions implies very restrictive properties of the solutions and symmetry axes. These restrictions are formulated in terms of three principles, based on the structure of the equations. The first principle covers equations that...

journal article 2017

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Concurrent wing and high-lift system aerostructural optimization

van den Kieboom, K.T.H. (author), Elham, A. (author)

A method is presented for concurrent aerostructural optimization of wing planform, airfoil and high lift devices. The optimization is defined to minimize the aircraft fuel consumption for cruise, while satisfying the field performance requirements. A coupled adjoint aerostructural tool, that couples a quasi-three-dimensional aerodynamic...

journal article 2017

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The VI-Suite: a set of environmental analysis tools with geospatial data applications

Southall, Ryan (author), Biljecki, F. (author)

Background: The VI-Suite is a free and open-source addon for the 3D content creation application Blender, developed primarily as a tool for the contextual and performative analysis of buildings. Its functionality has grown from simple, static lighting analysis to fully parametric lighting, shadowing, and building energy analyses. It adopts a...

journal article 2017

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Revealing the relation between the structure, Li-ion conductivity and solid state battery performance for the argyrodite Li6PS5Br solid electrolyte

Yu, C. (author), Ganapathy, S. (author), van Eck, Ernst R H (author), van Eijck, L. (author), Basak, S. (author), Liu, Yanyan (author), Zhang, Long (author), Zandbergen, H.W. (author), Wagemaker, M. (author)

Based on its high Li-ion conductivity, argyrodite Li6PS5Br is a promising solid electrolyte for all-solid-state batteries. However, more understanding is required on the relation between the solid electrolyte conductivity and the solid-state battery performance with the argyrodite structure, crystallinity and particle size that depend on the...

journal article 2017

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Nanoparticle discrimination based on wavelength and lifetime-multiplexed cathodoluminescence microscopy

Garming, M.W.H. (author), Weppelman, I.G.C. (author), De Boer, Pascal (author), Martínez, Felipe Perona (author), Schirhagl, Romana (author), Hoogenboom, J.P. (author), Moerland, R.J. (author)

Nanomaterials can be identified in high-resolution electron microscopy images using spectrally-selective cathodoluminescence. Capabilities for multiplex detection can however be limited, e.g., due to spectral overlap or availability of filters. Also, the available photon flux may be limited due to degradation under electron irradiation. Here,...

journal article 2017

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Transport Properties of a Two-Dimensional PbSe Square Superstructure in an Electrolyte-Gated Transistor

Alimoradi Jazi, M. (author), Janssen, V.A.E.C. (author), Evers, W.H. (author), Tadjine, A. (author), Delerue, C (author), Siebbeles, L.D.A. (author), van der Zant, H.S.J. (author), Houtepen, A.J. (author), Vanmaekelbergh, D (author)

Self-assembled nanocrystal solids show promise as a versatile platform for novel optoelectronic materials. Superlattices composed of a single layer of lead-chalcogenide and cadmium-chalcogenide nanocrystals with epitaxial connections between the nanocrystals, present outstanding questions to the community regarding their predicted band...

journal article 2017

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The impacts of heating strategy on soil moisture estimation using actively heated fiber optics

Dong, J. (author), Agliata, Rosa (author), Steele-Dunne, S.C. (author), Hoes, O.A.C. (author), Bogaard, T.A. (author), Greco, Roberto (author), van de Giesen, N.C. (author)

Several recent studies have highlighted the potential of Actively Heated Fiber Optics (AHFO) for high resolution soil moisture mapping. In AHFO, the soil moisture can be calculated from the cumulative temperature (T_cum), the maximum temperature (T_max), or the soil thermal conductivity determined from the cooling phase...

journal article 2017

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Light scattering by magnons in whispering gallery mode cavities

Sharma, S. (author), Blanter, Y.M. (author), Bauer, G.E. (author)

Brillouin light scattering is an established technique to study magnons, the elementary excitations of a magnet. Its efficiency can be enhanced by cavities that concentrate the light intensity. Here, we theoretically study inelastic scattering of photons by a magnetic sphere that supports optical whispering gallery modes in a plane normal to...

journal article 2017

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Charge Transport through a Single Molecule of trans-1-bis-Diazofluorene [60]fullerene

Stefani, D. (author), Gutiérrez Cerón, C.A. (author), Aravena, Daniel (author), Labra Muñoz, J. (author), Suarez, Catalina (author), Liu, Shuming (author), Soler, Monica (author), Echegoyen, Luis (author), van der Zant, H.S.J. (author), Dulić, Diana (author)

Fullerenes have attracted interest for their possible applications in various electronic, biological, and optoelectronic devices. However, for efficient use in such devices, a suitable anchoring group has to be employed that forms well-defined and stable contacts with the electrodes. In this work, we propose a novel fullerene tetramalonate...

journal article 2017