Searched for: subject%3A%22Dispersion%22
(1 - 20 of 90)

Pages

document
Sabbadini, A. (author), Massaad, J. (author), van Neer, P.L.M.J. (author), de Jong, N. (author), Verweij, M.D. (author)
In recent years, several fitting techniques have been presented to reconstruct the parameters of a plate from its Lamb wave dispersion curves. Published studies show that these techniques can yield high accuracy results and have the potential of reconstructing several parameters at once. The precision with which parameters can be reconstructed...
article 2022
document
Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)
article 2022
document
Owen, B. (author), Anet, J.G. (author), Bertier, N. (author), Christie, S. (author), Cremaschi, M. (author), Dellaert, S.N.C. (author), Edebeli, J. (author), Janicke, U. (author), Kuenen, J.J.P. (author), Lim, L. (author), Terrenoire, E. (author)
The contribution of aircraft operations to ambient ultrafine particle (UFP) concentration at and around airports can be significant. This review article considers the volatile and non-volatile elements of particulate matter emissions from aircraft engines, their characteristics and quantification and identifies gaps in knowledge. The current...
article 2022
document
Karakitsios, S. (author), Maggos, T. (author), Busker, R.W. (author), Armand, P. (author), Bartzis, J.G. (author)
The overarching objective of the ERNCIP “Detection of Indoor Airborne Chemical & Biological Agents” Thematic Group (TG) is to strengthen resilience of critical infrastructure against airborne CB threats by improvement of detection capabilities. The subsidiary aim of the research described in this technical report is to develop knowledge on the...
report 2022
document
Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)
Current ultrasonic clamp-on flow meters consist of a pair of single-element transducers which are carefully positioned before use. This positioning process consists of manually finding the distance between the transducer elements, along the pipe axis, for which maximum SNR is achieved. This distance depends on the sound speed, thickness and...
article 2021
document
Sberna, P.M. (author), Bernardis, A.F. (author), Garufo, A. (author), Bueno, J. (author), Llombart, N. (author), Neto, A. (author)
Photo-conductive lens antennas (PCAs) exploit the ultra-short photoconductivity phenomenon of specific semiconductors in order to generate pulsed radiation in the THz regime. State of the art PCAs suffer from high dispersion and low radiation efficiency over the large generated bandwidth due to the poor coupling between the antenna and the...
conference paper 2021
document
Sabbadini, A. (author), Caenen, A. (author), Keijzer, L.B.H. (author), van Neer, P.L. (author), Vos, H.J. (author), de Jong, N. (author), Verweij, M.D. (author)
Shear wave elastography (SWE) has the potential to determine cardiac tissue stiffness from non-invasive shear wave speed measurements, important, e.g., for predicting heart failure. Previous studies showed that waves traveling in the interventricular septum (IVS) may display Lamb-like dispersive behaviour, introducing a thickness-frequency...
article 2021
document
Boot, H. (author), Pérez, S.R. (author)
The present paper describes the theory behind the “plume rise from warehouse or pool fires model” as implemented in the software package EFFECTS. This model simulates the rising of buoyant plumes due to the density difference between the hot combustion products and the ambient air. The plume rise model calculates the maximum height at which the...
article 2020
document
Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)
Current ultrasonic clamp-on flow meters are manually calibrated. This process is based on manual placement of two single-element transducers along a pipe wall. Due to the usually unknown pipe properties and inhomogeneities in the pipe geometry, the axial distance of the transducers needs to be manually calibrated to align the location of the...
conference paper 2019
document
Meyer-Plath, A. (author), Koivisto, A.J. (author), Koponen, I.K. (author), Jensen, A.C.Ø. (author), MacCalman, L. (author), Tuinman, I. (author), Fransman, W. (author), Domat, M. (author), Bivolarova, M. (author), van Tongeren, M. (author)
A particle exposure experiment inside a large climate-controlled chamber was conducted. Data on spatial and temporal distribution of nanoscale and fine aerosols in the range of mobility diameters 8-600 nm were collected with high resolution, for sodium chloride, fluorescein sodium, and silica particles. Exposure scenarios studied included...
article 2019
document
Guo, Y. (author), van Ravensteijn, B.G.P. (author), Kegel, W.K. (author)
Dimple colloids with well-defined cavities were synthesized by a modified dispersion polymerization. The key step in the procedure is the delayed addition of crosslinkers into the reaction mixture. By systematically studying the effect of the delayed addition time and the concentration of the cross-linker on the resulting particle morphology, we...
article 2019
document
Verdel, A. (author), van Haeringen, D. (author), Vandeweijer, V. (author), Carpentier, S. (author), Meekes, S. (author)
We demonstrate in this geothermal exploration case study performed in The Netherlands that ambient noise seismic interferometry (ANSI) can be an effective and efficient method for obtaining surface wave dispersion curves, leading to shallow shear-wave velocity-depth profiles that can improve imaging of deep structures. As the ANSI method...
conference paper 2019
document
Voogt, B. (author), Huinink, H. (author), Erich, S.J.F. (author), Scheerder, J. (author), Venema, P. (author), Adan, O.C.G. (author)
GARField 1H NMR relaxometry experiments were done to study the drying process of two latices with different polymer Tg and to elucidate water mobility behavior during this process. It was found that the hard type latex, with a polymer Tg above room temperature, dries faster than the soft type latex, with a polymer Tg below room temperature....
article 2018
document
Shandilya, N. (author), Ligthart, T. (author), van Voorde, I. (author), Stahlmecke, B. (author), Clavaguera, S. (author), Philippot, C. (author), Goede, H. (author)
The shredding of waste of electrical and electronic equipment (WEEE) and other products, incorporated with nanomaterials, can lead to a substantial release of nanomaterials. Considering the uncertainty, complexity, and scarcity of experimental data on release, we present the development of a Bayesian belief network (BBN) model. This baseline...
article 2018
document
Bultink, C.C. (author), Tarasinski, B. (author), Haandbæk, N. (author), Poletto, S. (author), Haider, N. (author), Michalak, D.J. (author), Bruno, A. (author), DiCarlo, L. (author)
We present and demonstrate a general three-step method for extracting the quantum efficiency of dispersive qubit readout in circuit QED. We use active depletion of post-measurement photons and optimal integration weight functions on two quadratures to maximize the signal-to-noise ratio of the non-steady-state homodyne measurement. We derive...
article 2018
document
Tromp, P.C. (author), Kuijpers, E. (author), Bekker, C. (author), Godderis, L. (author), Lan, Q. (author), Jedynska, A.D. (author), Vermeulen, R. (author), Pronk, A. (author)
To date there is no consensus about the most appropriate analytical method for measuring carbon nanotubes (CNTs), hampering the assessment and limiting the comparison of data. The goal of this study is to develop an approach for the assessment of the level and nature of inhalable multi-wall CNTs (MWCNTs) in an actual workplace setting by...
article 2017
document
Ainslie, M.A. (author), Ellis, D.D. (author)
article 2017
document
Sofiev, M. (author), Ritenberga, O. (author), Albertini, R. (author), Arteta, J. (author), Belmonte, J. (author), Bernstein, C.G. (author), Bonini, M. (author), Celenk, S. (author), Damialis, A. (author), Douros, J. (author), Elbern, H. (author), Friese, E. (author), Galan, C. (author), Oliver, G. (author), Hrga, I. (author), Kouznetsov, R. (author), Krajsek, K. (author), Magyar, D. (author), Parmentier, J. (author), Plu, M. (author), Prank, M. (author), Robertson, L. (author), Marie Steensen, B. (author), Thibaudon, M. (author), Segers, A. (author), Stepanovich, B. (author), Valdebenito, A.M. (author), Vira, J. (author), Vokou, D. (author)
The paper presents the first modelling experiment of the European-scale olive pollen dispersion, analyses the quality of the predictions, and outlines the research needs. A 6-model strong ensemble of Copernicus Atmospheric Monitoring Service (CAMS) was run throughout the olive season of 2014, computing the olive pollen distribution. The...
article 2017
document
Silvestri, F. (author), Gerini, G. (author), Bäumer, S.M.B. (author)
In the last years, much interest has grown around the concept of optical surfaces employing high contrast dielectric resonators. However, a systematic approach for the design of this optical surfaces under particular requirements has never been proposed. In this contribution, we describe this approach applied to the robust design of an array of...
conference paper 2017
document
Arapov, K. (author), Rubingh, E. (author), Abbel, R.J. (author), Laven, J. (author), de With, G. (author), Friedrich, H. (author)
This paper describes the gelation of highly concentrated graphene/polymer dispersions triggered by mild heating. The gel formation is only dependent on the concentration of graphene with 3.25 mg mL-1 as the minimum value for graphene network formation. The graphene gel is then utilized for the preparation of colloidally stable and highly...
article 2016
Searched for: subject%3A%22Dispersion%22
(1 - 20 of 90)

Pages