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Akademický článek

A comparison of four receptor models used to quantify the boreal wildfire smoke contribution to surface PM2.5 in Halifax, Nova Scotia during the BORTAS-B experiment

Autor: M. D. Gibson, J. Haelssig, J. R. Pierce, M. Parrington, J. E. Franklin, J. T. Hopper, Z. Li, T. J. Ward

Publikováno v: Atmospheric Chemistry and Physics, Vol 15, Iss 2, Pp 815-827 (2015)

This paper presents a quantitative comparison of the four most commonly used receptor models, namely absolute principal component scores (APCS), pragmatic mass closure (PMC), chemical mass balance (CMB) and positive matrix factorization (PMF). The mo

Externí odkaz: https://doaj.org/article/00b675f7f1474f8299fb66c85d30158f

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High-Rayleigh-number convection of a reactive solute in a porous medium

Autor: Oliver E. Jensen, Henry Power, D. S. Riley, T. J. Ward

Publikováno v: Journal of Fluid Mechanics. 760:95-126

We consider two-dimensional one-sided convection of a solute in a fluid-saturated porous medium, where the solute decays via a first-order reaction. Fully nonlinear convection is investigated using high-resolution numerical simulations and a low-orde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59a00cf5160060bde54cb9f84840e3cb
https://doi.org/10.1017/jfm.2014.594

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Akademický článek

Discussion of "Infiltration Model Parameters from Rainfall Simulation for Sandy Soils".

Autor: Ward, Tim J., Sabol, George V.

Publikováno v: Journal of Hydrologic Engineering; Oct2024, Vol. 29 Issue 5, p1-2, 2p

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Substrate degradation in high Rayleigh-number reactive convection

Autor: Henry Power, D. S. Riley, T. J. Ward, Oliver E. Jensen

Publikováno v: Ward, T, Jensen, O E, Power, H & Riley, D S 2015, ' Substrate degradation in high Rayleigh-number reactive convection ', Physics of Fluids, vol. 27, 116601 . https://doi.org/10.1063/1.4935226

We study buoyancy-induced convection of a solute in an ideal two-dimensional fluid-saturated porous medium, where the solute undergoes a second-order reaction with a chemical substrate that is fixed in the underlying matrix. Numerical simulations at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a58129472321e868dcf49f1cd499ba1
https://doi.org/10.1063/1.4935226

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Separation of enantiomers using vancomycin in a countercurrent process by suppression of electroosmosis

Autor: T J, Ward, C, Dann, A P, Brown

Publikováno v: Chirality. 8(1)

Excellent separations were achieved using a coated column to suppress electroosmotic flow and employing a countercurrent process between chiral selector and racemic solute. Using the macrocyclic antibiotic vancomycin as a chiral selector in capillary

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::568a57ecb1c9664e4f6a2dea738561b8
https://pubmed.ncbi.nlm.nih.gov/26027015

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Standard Asymptotic Response and Expected Runoff from Curve Number Theory

Autor: Giovanni Grillone, M. Shaked, Richard H. Hawkins, Francesco D'Asaro, T. J. Ward

The Standard Asymptotic response is a common finding with rainfall-runoff analysis with the Curve Number method. Widely-observed in data analyses, it is the secondary relationship between the data-defined CN and the causative rainfall P, for which th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df622fef81241faf8ac8452e0337b163
http://hdl.handle.net/10447/145721

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Application of multi-scale modelling in aeroengine component life assessment

Autor: D. P. Shepherd, G. F. Harrison, T. J. Ward, P.H Tranter

Publikováno v: Materials Science and Engineering: A. 365:247-256

The paper provides an overview of the procedures used to determine the safe service lives of aeroengine components, with particular reference to the role of scale in lifing models. It is shown how the volume of material tested influences the declared

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b98fa7410dfaeb2d51bf46832deed849
https://doi.org/10.1016/j.msea.2003.09.034

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Dissolution-driven porous-medium convection in the presence of chemical reaction

Autor: Henry Power, T. J. Ward, Oliver E. Jensen, K. A. Cliffe

Publikováno v: Ward, T, Cliffe, K A, Jensen, O E & Power, H 2014, ' Dissolution-driven porous-medium convection in the presence of chemical reaction ', Journal of Fluid Mechanics, vol. 747, pp. 316-349 . https://doi.org/10.1017/jfm.2014.149

Motivated by processes occurring during ${\mathrm{CO}}_2$ sequestration in an underground saline aquifer, we examine two-dimensional convection in a finite-depth porous medium induced by a solute introduced at the upper boundary. Once dissolved, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::097b3c0a7b5a6f256c4cfe8993051617
https://doi.org/10.1017/jfm.2014.149

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Cyclic operation of aero gas turbines – materials and component life implications

Autor: D. P. Shepherd, G. F. Harrison, B. Vermeulen, T. J. Ward, A. Wisbey

Publikováno v: Materials at High Temperatures. 18:231-239

Historically, the issues connected with the lifing of power generation gas turbine components have been very different from those associated with aero engines. Specifically, component lives in the power generation application have been dictated by cr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e565feccd17efcbabc229e989e4b225
https://doi.org/10.1179/mht.2001.025

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