Searched for: subject%3A%22Size%255C%2Bdistribution%22
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February, F.J. (author), Piazzola, J. (author), Altieri, K.E. (author), van Eijk, A.M.J. (author)
The atmospheric aerosol has a large influence on global climate through its ability of scattering and absorbing electromagnetic radiation, which affect the Earth's radiative balance. Characteristics, such as size distribution, chemical composition and hygroscopic properties are important for improving global climate model projections of natural...
article 2021
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Peng, F. (author), van Balen, R. (author), Beets, C. (author), Kasse, C. (author), Prins, M. (author), van der Putten, N. (author), Troelstra, S. (author), Woolderink, H. (author), van der Woude, J. (author)
Lateglacial climatic oscillations exerted profound impacts on the Meuse fluvial system. In the Lower Meuse (southern Netherlands), geomorphological studies in the last decades mainly centred on Lateglacial vegetation evolution, channel pattern changes and river terrace formation. Little information has been reported about the paleohydrology and...
article 2021
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Peng, F. (author), Prins, M.A. (author), Kasse, C. (author), Cohen, K.M. (author), van der Putten, N. (author), van der Lubbe, J. (author), Toonen, W.H.J. (author), van Balen, R.T. (author)
This study investigates Holocene floodplain evolution and flooding phases as experienced in the Lower Meuse catchment, primarily based on grain-size distributions of channel-fill and floodplain deposits in sediment cores. The presence of post-depositional Fe[sbnd]Mn concretions and resistant organic particulate materials impedes the direct use...
article 2019
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Ozbek, A.S. (author), Pedersen, R.R. (author), Weerheijm, J. (author), van Breugel, K. (author)
This study presents the numerical analyses conducted to investigate the impact behavior of different porous concretes, which have also been cast and tested experimentally. For a realistic representation of the real porous concretes containing arbitrary shaped air pores, a mesh generation code was developed in which the aggregates in the mixtures...
article 2019
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Laussac, S. (author), Piazzola, J. (author), Tedeschi, G. (author), Yohia, C. (author), Canepa, E. (author), Rizza, U. (author), van Eijk, A.M.J. (author)
The aim of this paper is to determine an accurate formulation for the sea-spray source function characteristic for the North-Western Mediterranean. To this end, the MACMod aerosol transport model was implemented in the study area using different sea-state dependent flux formulations. The simulations were compared to a large data set of aerosol...
article 2018
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van Binsbergen, S.A. (author), Grossmann, P. (author), Cohen, L.H. (author), van Eijk, A.M.J. (author), Stein, K.U. (author)
This paper compares in-situ and path-averaged measurements of the electro-optical transmission, with emphasis on aerosol effects. The in-situ sensors consisted of optical particle counters (OPC) and a visibility meter, the path-averaged data was provided by a 7-wavelength transmissometer (MSRT) and a scintillometer (BLS). Data was collected at a...
conference paper 2017
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van Binsbergen, S.A. (author), Grossmann, P. (author), February, F.J. (author), Cohen, L.H. (author), van Eijk, A.M.J. (author), Stein, K.U. (author)
This paper compares in-situ and path-averaged measurements of the electro-optical transmission, with emphasis on aerosol effects. The in-situ sensors consisted of optical particle counters (OPC), the path-averaged data was provided by a 7-wavelength transmissometer (MSRT) and scintillometers (BLS). Data were collected at two sites: a homogeneous...
conference paper 2017
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Helsper, J.P.F.G. (author), Peters, R.J.B. (author), van Bemmel, M.E.M. (author), Rivera, Z.E.H. (author), Wagner, S. (author), von der Kammer, F. (author), Tromp, P.C. (author), Hofmann, T. (author), Weigel, S. (author)
Seven commercial titanium dioxide pigments and two other well-defined TiO2 materials (TiMs) were physicochemically characterised using asymmetric flow field flow fractionation (aF4) for separation, various techniques to determine size distribution and inductively coupled plasma mass spectrometry (ICPMS) for chemical characterization. The aF4...
article 2016
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van Eijk, A.M.J. (author), Piazzola, J. (author), Van Zuijlen, S. (author), Cohen, L. (author), Moerman, M. (author), Missamou, T. (author), Tedeschi, G. (author), Stein, K. (author)
A comparison of aerosol data acquired at five different sites around the globe is presented. All data has been acquired with the same instrumentation and representative size distributions for marine air masses at 10 m/s wind speed have been selected for comparison. Differences in the concentrations of larger and smaller aerosols at the various...
conference paper 2016
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Klein Entink, R.H. (author), Bekker, C. (author), Fransman, W.F. (author), Brouwer, D.H. (author)
article 2015
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Li, Y. (author), Hoogeboom, P. (author), Russchenberg, H. (author)
Fog is a significant factor affecting the public traffic because visibility is reduced to a large extent. Therefore the determination of optical visibility in fog from radar instruments has received much interest. To observe fog with radar, high frequency bands (millimeter waves) have the best option. A 35 GHz cloud radar at the Cabauw...
conference paper 2014
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Peters, R.J.B. (author), van Bemmel, G. (author), Herrera-Rivera, Z. (author), Helsper, H.P.F.G. (author), Marvin, H.J.P. (author), Weigel, S. (author), Tromp, P.C. (author), Oomen, A.G. (author), Rietveld, A.G. (author), Bouwmeester, H. (author)
Titanium dioxide (TiO2) is a common food additive used to enhance the white color, brightness, and sometimes flavor of a variety of food products. In this study 7 food grade TiO2 materials (E171), 24 food products, and 3 personal care products were investigated for their TiO 2 content and the number-based size distribution of TiO2 particles...
article 2014
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Shandilya, N. (author), Le Bihan, O. (author), Morgeneyer, M. (author)
A study highlighting the aspect of the generation of aerosol wear particles during abrasion is presented. The substrate chosen is a masonry brick which is reinforced with TiO2 nanoparticles. This is done using a pin on plate arrangement. The material removal mechanism via fracturing is first understood. The parameter chosen for the study is the...
article 2014
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Brachert, L. (author), Mertens, J. (author), Khakharia, P.M. (author), Schaber, K. (author)
In this study, two different methods for the measurement of the sulfuric acid aerosol which is formed in wet flue gas cleaning processes have been investigated. The condensation particle counter (UFCPC, PALAS GmbH) provides information about the number concentration. With the electrical low pressure impactor (ELPI+, Dekati Ltd.) also the size...
article 2014
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Mertens, J. (author), Brachert, L. (author), Desagher, D. (author), Thielens, M.L. (author), Khakharia, P.M. (author), Goetheer, E.L.V. (author), Schaber, K. (author)
Recently, studies have appeared pointing out that aerosols can dominate the total amine emission from amine based PCCC pilot plant scale installations. For the design of countermeasure types (upstream or downstream of the PCCC installation), it is crucial to have an idea of the aerosol size distribution and numbers entering or leaving the...
article 2014
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Li, Y. (author), Hoogeboom, P. (author), Russchenberg, H. (author)
Fog is a significant factor affecting the public traffic because visibility is reduced to a large extent. Therefore the determination of optical visibility in fog from radar instruments has received much interest. To observe fog with radar, high frequency bands (millimeter waves) have the best option. A 35 GHz cloud radar at the Cabauw...
conference paper 2014
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Beddows, D.C.S. (author), Dall'Osto, M. (author), Harrison, R.M. (author), Kulmala, M. (author), Asmi, A. (author), Wiedensohler, A. (author), Laj, P. (author), Fjaeraa, A.M. (author), Sellegri, K. (author), Birmili, W. (author), Bukowiecki, N. (author), Weingartner, E. (author), Baltensperger, U. (author), Zdimal, V. (author), Zikova, N. (author), Putaud, J.P. (author), Marinoni, A. (author), Tunved, P. (author), Hansson, H.C. (author), Fiebig, M. (author), Kivekäs, N. (author), Swietlicki, E. (author), Lihavainen, H. (author), Asmi, E. (author), Ulevicius, V. (author), Aalto, P.P. (author), Mihalopoulos, N. (author), Kalivitis, N. (author), Kalapov, I. (author), Kiss, G. (author), de Leeuw, G. (author), Henzing, B. (author), O'Dowd, C. (author), Jennings, S.G. (author), Flentje, H. (author), Meinhardt, F. (author), Ries, L. (author), van der Gon, H.A.C. (author), Visschedijk, A.J.H. (author)
Clusteranalysis of particle number size distributions frombackground sites across Europeis presented. This generated a total of nine clusters of particle size distributions which could be further combined into two main groups, namely: a south-to-north category (four clusters) and a west-to-east category (five clusters). The first group was...
article 2014
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Lubelli, B. (author), de Winter, D.A.M. (author), Post, J.A. (author), van Hees, R.P.J. (author), Drury, M.R. (author)
Clays often constitute the main component of poultices used for salt extraction from porous materials in conservation intervention. Knowledge of the evolution in porosity and pore size of clay based poultices, due to shrinkage during drying, is of crucial importance for the selection of the most suitable poultice.We have studied the porosity and...
article 2013
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Fountoukis, C. (author), Riipinen, I. (author), Denier Van Der Gon, H.A.C. (author), Charalampidis, P.E. (author), Pilinis, C. (author), Wiedensohler, A. (author), O'Dowd, C. (author), Putaud, J.P. (author), Moerman, M. (author), Pandis, S.N. (author)
A three-dimensional regional chemical transport model (CTM) with detailed aerosol microphysics, PMCAMx-UF, was applied to the European domain to simulate the contribution of direct emissions and secondary formation to total particle number concentrations during May 2008. PMCAMx-UF uses the Dynamic Model for Aerosol Nucleation and the Two-Moment...
article 2012
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Hulsbosch-Dam, C.E.C. (author), Spruijt, M.P.N. (author), Necci, A. (author), Cozzani, V. (author)
A model was developed to calculate the particle size distribution following the release of pressurised supercritical CO 2. The model combines several sub-models for the different stages of jet break-up and specifically addresses the possible formation of solid particles, which is important for CO 2 releases. The model was validated using...
article 2012
Searched for: subject%3A%22Size%255C%2Bdistribution%22
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