Výsledky vyhledávání - "Andrew M. J. Rickards"

Timescales of water transport in viscous aerosol: measurements on sub-micron particles and dependence on conditioning history

Autor: Kerry J. Knox, Jonathan P. Reid, Jim S. Walker, Rachael E. H. Miles, Jessica W. Lu, Andrew M. J. Rickards, Ruth Signorell

Publikováno v: Physical Chemistry Chemical Physics

Evaporation studies of single aqueous sucrose aerosol particles as a function of relative humidity (RH) are presented for coarse and fine mode particles down into the submicron size range (600 nm < r < 3.0 [mu]m). These sucrose particles serve as a p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1304159b4ba0d3af872f96ddfbebbe
https://doi.org/10.1039/c3cp54233e

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Simultaneous Analysis of the Equilibrium Hygroscopicity and Water Transport Kinetics of Liquid Aerosol

Autor: Jonathan P. Reid, Andrew M. J. Rickards, Allen E. Haddrell, James F. Davies

Publikováno v: Analytical Chemistry. 85:5819-5826

We demonstrate that the equilibrium hygroscopic response of an aerosol droplet and the kinetics of water condensation and evaporation can be retrieved with high accuracy, even close to saturation, through comparative measurements of probe and sample

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ae915f472b8d589428e51b6f0aef847
https://doi.org/10.1021/ac4005502

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Comparison of Methods for Predicting the Compositional Dependence of the Density and Refractive Index of Organic-Aqueous Aerosols

Autor: Rachael E. H. Miles, Aleksandra Marsh, Michael I. Cotterell, Andrew M. J. Rickards, Chen Cai, Grazia Rovelli, Yun-Hong Zhang, Jonathan P. Reid

Publikováno v: Cai, C, Miles, R E H, Cotterell, M I, Marsh, A, Rovelli, G, Rickards, A M J, Zhang, Y H & Reid, J P 2016, ' Comparison of Methods for Predicting the Compositional Dependence of the Density and Refractive Index of Organic-Aqueous Aerosols ', Journal of Physical Chemistry A, vol. 120, no. 33, pp. 6604-6617 . https://doi.org/10.1021/acs.jpca.6b05986

Representing the physicochemical properties of aerosol particles of complex composition is of crucial importance for understanding and predicting aerosol thermodynamic, kinetic, and optical properties and processes and for interpreting and comparing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2db73b433dda9ce3915f52dbe9ad8d10
https://pubmed.ncbi.nlm.nih.gov/27500411

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Water diffusion in atmospherically relevant α-pinene secondary organic material

Autor: Andrew M. J. Rickards, Jonathan P. Reid, Johan Mattsson, Daniel O'Sullivan, James W. Grayson, Scot T. Martin, James F. Davies, Benjamin J. Murray, H. C. Price, Yue Zhang, Allan K. Bertram

Publikováno v: Chemical science, vol 6, iss 8

Secondary organic material (SOM) constitutes a large mass fraction of atmospheric aerosol particles. Understanding its impact on climate and air quality relies on accurate models of interactions with water vapour. Recent research shows that SOM can b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72e16b65a4a1d0595a88e824d42ded0e
https://eprints.whiterose.ac.uk/86860/16/c5sc00685f.pdf

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Variabilities and uncertainties in characterising water transport kinetics in glassy and ultraviscous aerosol

Autor: Andrew M J, Rickards, Young-Chul, Song, Rachael E H, Miles, Thomas C, Preston, Jonathan P, Reid

Publikováno v: Physical chemistry chemical physics : PCCP. 17(15)

We present a comprehensive evaluation of the variabilities and uncertainties present in determining the kinetics of water transport in ultraviscous aerosol droplets, alongside new measurements of the water transport timescale in sucrose aerosol. Meas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7291f66118f0a9cdc21d34ccf862dcc0
https://pubmed.ncbi.nlm.nih.gov/25786190

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Measurements of the sensitivity of aerosol hygroscopicity and the κ parameter to the O/C ratio

Autor: Frances Marshall, James F. Davies, Andrew M. J. Rickards, Jonathan P. Reid, Rachael E. H. Miles

Publikováno v: Rickards, A M J, Miles, R E H, Davies, J F, Marshall, F H & Reid, J P 2013, ' Measurements of the Sensitivity of Aerosol Hygroscopicity and the kappa Parameter to the O/C Ratio ', Journal of Physical Chemistry A, vol. 117, no. 51, pp. 14120-14131 . https://doi.org/10.1021/jp407991n

We report measurements of the subsaturated hygroscopic growth of aerosol particles composed of single organic components of varying oxygen-to-carbon ratio up to relative humidities approaching saturation using the techniques of aerosol optical tweeze

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5bb8a97d86ba0e0d06b8341e5d2a6c6
https://pubmed.ncbi.nlm.nih.gov/24295229

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Comparison of the accuracy of aerosol refractive index measurements from single particle and ensemble techniques

Autor: Rachael E. H. Miles, Jin Kim, Simon-John King, Jonathan P. Reid, Andrew M. J. Rickards, Bernard J. Mason, Katherine M. Manfred, Andrew J. Orr-Ewing

Publikováno v: The journal of physical chemistry. A. 116(33)

The ability of two techniques, aerosol cavity ring down spectroscopy (A-CRDS) and optical tweezers, to retrieve the refractive index of atmospherically relevant aerosol was compared through analysis of supersaturated sodium nitrate at a range of rela

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::289941fcc28b0f6bfe8827c447f53332
https://pubmed.ncbi.nlm.nih.gov/22856537

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