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The planar setup: A window through the complex interactions in granular flows

Cabrera, M.A. (author), Cote, Laura (author), Caro, Santiago (author)

Granular flows are a complex process, involving a wide range of grain sizes, materials, varied viscous fluids, among others. For this reason, the simulation of granular flows requires a certain level of simplification, allowing the isolated study of its governing variables and extending the global observations to field events. Here, we...

journal article 2023

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Identification of diseases and physiological disorders in potato via multispectral drone imagery using machine learning tools

León-Rueda, William A. (author), León Sánchez, C.A. (author), Caro, Sandra Gómez (author), Ramírez-Gil, Joaquín Guillermo (author)

The rapid and precise detection of diseases and plant disorders is the basis for the adequate and timely design of management strategies. Currently, there are several non-destructive alternatives that allow early detection, highlighting the use of spectral cameras attached to unmanned aerial vehicles (UAVs). The objective of this research was...

journal article 2021

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Ultrasonic propagation in liquid and ice water drops. Effect of porosity

Mendonck, Michiel (author), Aparicio, Sofía (author), Díaz, Cristóbal González (author), Hernández, Margarita G. (author), Caro, Guillermo M.Muñoz (author), Anaya, José Javier (author), Cazaux, S.M. (author)

This work studies ultrasonic propagation in liquid and ice water drops. The effect of porosity on attenuation of ultrasonic waves in the drops is also explored. The motivation of this research was the possible application of ultrasonic techniques to the study of interstellar and com-etary ice analogs. These ice analogs, made by vapor...

journal article 2021

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Statistical analysis of building damage from the 2013 super typhoon haiyan and its storm surge in The Philippines

Chaivutitorn, Tanaporn (author), Tanasakcharoen, Thawalrat (author), Leelawat, Natt (author), Tang, Jing (author), Caro, Carl Vincent C. (author), Lagmay, Alfredo Mahar Francisco A. (author), Suppasri, Anawat (author), Bricker, J.D. (author), Roeber, Volker (author), Yi, Carine J. (author), Imamura, Fumihiko (author)

In November 2013, Super Typhoon Haiyan (Yolanda) hit the Philippines. It caused heavy loss of lives and extensive damages to buildings and infrastructure. When collapsed buildings are focused on, it is inter-esting to find that these buildings did not collapse for the same reasons after the landfall of the typhoon and storm surge. The...

journal article 2020

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CO Depletion: A Microscopic Perspective

Cazaux, S.M. (author), Martín-Doménech, R. (author), Chen, Y. J. (author), Caro, G. M.Muñoz (author), Díaz, C. González (author)

In regions where stars form, variations in density and temperature can cause gas to freeze out onto dust grains forming ice mantles, which influences the chemical composition of a cloud. The aim of this paper is to understand in detail the depletion (and desorption) of CO on (from) interstellar dust grains. Experimental simulations were...

journal article 2017

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Effect of Li on the deformation mechanisms of nanocrystalline hexagonal close packed magnesium

Karewar, S.V. (author), Gupta, N. (author), Groh, S. (author), Martinez, E. (author), Caro, A. (author), Srinivasan, S.G. (author)

Addition of solutes such as lithium enhances ductility of hexagonal-close-packed (hcp) magnesium (Mg). However, the atomistic underpinning of Li addition on individual deformation mechanisms remain unclear and is the focus of the present work. We compared the deformation mechanisms in nanocrystalline (NC) and single crystal simulation systems...

journal article 2017

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Inconsistencies in modelling interstitials in FeCr with empirical potentials

Klaver, T.P.C. (author), del Rio, E. (author), Bonny, G (author), Eich, S.M. (author), Caro, A. (author)

We present empirical potential and Density Functional Theory results of interstitials in FeCr and pure Cr. Results show that potentials for the original and revised two-band model, a recently introduced third two-band model, and for the revised concentration-dependent model produce errors of up to multiple eV in formation and binding energies...

journal article 2016

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Metal–organic framework based mixed matrix membranes: A solution for highly efficient CO2 capture?

Seoane, B. (author), Coronas, J. (author), Gascon, I. (author), Benavides, M.E. (author), Karvan, O. (author), Caro, J. (author), Kapteijn, F. (author), Gascon, J. (author)

The field of metal–organic framework based mixed matrix membranes (M4s) is critically reviewed, with special emphasis on their application in CO2 capture during energy generation. After introducing the most relevant parameters affecting membrane performance, we define targets in terms of selectivity and productivity based on existing literature...

journal article 2015

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On-chip optical trapping and Raman spectroscopy using a TripleX dual-waveguide trap

Boerkamp, M. (author), Van Leest, T. (author), Heldens, J. (author), Leinse, A. (author), Hoekman, M. (author), Heideman, R. (author), Caro, J. (author)

We present a new approach to the dual-beam geometry for on-chip optical trapping and Raman spectroscopy, using waveguides microfabricated in TripleX technology. Such waveguides are box shaped and consist of SiO2 and Si3N4, so as to provide a low index contrast with respect to the SiO2 claddings and low loss, while retaining the advantages of...

journal article 2014

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Tuning of a cavity in a silicon photonic crystal by thermal expansion of an elastomeric infill

Erdamar, A.K. (author), Van Leest, M.M. (author), Picken, S.J. (author), Caro, J. (author)

We use an elastomer as infill material for a photonic crystal. As a result of the thermal-expansion-induced strongly negative thermal optical coefficient, this material is highly suitable for thermal tuning of the transmission of a cavity. This is demonstrated by global infilling of a hole-type silicon photonic crystal slab and global thermal...

journal article 2011

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Harvesting wave energy; developing a wave energy converter

Fokker, D. (author), Caro, R. (author)

journal article 2010

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Compact Mach-Zehnder interferometer based on self-collimation of light in a silicon photonic crystal

Nguyen, H.M. (author), Dundar, M.A. (author), Van der Heijden, R.W. (author), Van der Drift, E.W.J.M. (author), Salemink, H.W.M. (author), Rogge, S. (author), Caro, J. (author)

We demonstrate a compact silicon photonic crystal Mach-Zehnder interferometer operating in the self-collimation regime. By tailoring the photonic band structure such as to produce self-collimated beams, it is possible to design beam splitters and mirrors and combine these to a 20 × 20 ?m2 format. With transmission spectroscopy we find a...

journal article 2010

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3D Flow reconstruction using ultrasound PIV

Poelma, C. (author), Mari, J.M. (author), Foin, N. (author), Tang, M.X. (author), Krams, R. (author), Caro, C.G. (author), Weinberg, P.D. (author), Westerweel, J. (author)

Ultrasound particle image velocimetry (PIV) can be used to obtain velocity fields in non-transparent geometries and/or fluids. In the current study, we use this technique to document the flow in a curved tube, using ultrasound contrast bubbles as flow tracer particles. The performance of the technique is first tested in a straight tube, with...

journal article 2009

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Transmission measurement of the photonic band gap of GaN photonic crystal slabs

Caro, J. (author), Roeling, E.M. (author), Rong, B. (author), Nguyen, H.M. (author), Van der Drift, E.W.J.M. (author), Rogge, S. (author), Karouta, F. (author), Van der Heijden, R.W. (author), Salemink, H.W.M. (author)

A high-contrast-ratio (30 dB) photonic band gap in the near-infrared transmission of hole-type GaN two-dimensional photonic crystals (PhCs) is reported. These crystals are deeply etched in a 650 nm thick GaN layer grown on sapphire. A comparison of the measured spectrum with finite difference time domain simulations gives quantitative agreement...

journal article 2008

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Transport spectroscopy of a single atom in a FinFET

Lansbergen, G.P. (author), Rahman, R. (author), Caro, J. (author), Biesemans, S. (author), Klimeck, G. (author), Hollenberg, L.C.L. (author), Rogge, S. (author)

journal article 2008

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Subthreshold channels at the edges of nanoscale triple-gate silicon transistors

Sellier, H. (author), Lansbergen, G.P. (author), Caro, J. (author), Rogge, S. (author), Collaert, N. (author), Ferain, I. (author), Jurczak, M. (author), Biesemans, S. (author)

The authors investigate the subthreshold behavior of triple-gate silicon field-effect transistors by low-temperature transport experiments. These three-dimensional nanoscale devices consist of a lithographically defined silicon nanowire surrounded by a gate with an active region as small as a few tens of nanometers down to 50×60×35?nm3....

journal article 2007

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Voltage-dependent electron distribution in a small spin valve: Mmission of nonequilibrium magnons and magnetization evolution

Kozub, I. (author), Caro, J. (author)

journal article 2007

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Transport Spectroscopy of a Single Dopant in a Gated Silicon Nanowire

Sellier, H. (author), Lansbergen, G.P. (author), Caro, J. (author), Rogge, S. (author), Collaert, N. (author), Ferain, I. (author), Jurczak, M. (author), Bieseman, S. (author)

We report on spectroscopy of a single dopant atom in silicon by resonant tunneling between source and drain of a gated nanowire etched from silicon on insulator. The electronic states of this dopant isolated in the channel appear as resonances in the low temperature conductance at energies below the conduction band edge. We observe the two...

journal article 2006

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Group-theoretical analysis of double acceptors in a magnetic field: Identification of the Si:B+ ground state

Smit, G.D.J. (author), Rogge, S. (author), Caro, J. (author), Klapwijk, T.M. (author)

journal article 2004

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Stark effect in shallow impurities in Si

Smit, G.D.J. (author), Rogge, S. (author), Caro, J. (author), Klapwijk, T.M. (author)

journal article 2004