23 Result(s)

Article

Detonation propagation through a diffuse-interface gas layer

Detonation propagation in a stratified layer of combustible gas over an inert gas was investigated experimentally. The layer formed in a 12.7-mm-wide channel by opening a sliding door that initially separated ...

M. McLoughlin, V. Yousefi-Asli, S. Gray, G. Ciccarelli in Shock Waves (2023)

Chapter and Conference Paper

Investigation into the Effects of Salt Chemistry and SO₂ on the Crack Initiation of CMSX-4 in Static Loading Conditions

Although evidence exists of the potential impact of stress, co-incident with corrosive environments at high temperature, for single-crystal turbine blades, the mechanism responsible is not fully understood. Th...

F. Duarte Martinez, N. I. Morar, M. Kothari, G. Gibson, J. Leggett… in Superalloys 2020 (2020)

Chapter and Conference Paper

Measurement and Evaluation of Co-existing Crack Propagation in Single-Crystal Superalloys in Hot Corrosion Fatigue Environments

Gas turbines blades are required to operate at high temperatures while being subjected to stress and . These demanding conditions have led to the need to better understand the interactions between corrosion a...

L. Brooking, C. Ferguson, J. Mason-Flucke, G. Gibson, J. Leggett… in Superalloys 2020 (2020)

Article

Orthopaedic Surgeon Density in South Africa

In the era of global surgery, there are limited data regarding the available surgical workforce in South Africa.

A. J. Dell, S. Gray, R. Fraser, M. Held, R. Dunn in World Journal of Surgery (2018)

Article

Mössbauer studies of stoichiometry of Fe₃O₄: characterization of nanoparticles for biomedical applications

The iron oxide Fe₃O₄, the mineral magnetite sometimes called ferrosoferric oxide, is notoriousy non-stoichiometric even in bulk form so its formula may be written Fe_3−δO₄. In nanoparticle form, where it has appli...

C. E. Johnson, J. A. Johnson, H. Y. Hah, M. Cole, S. Gray… in Hyperfine Interactions (2016)

Article

New Technique to Map Hot Corrosion Damage: CMSX-4 Example

Despite their extraordinary properties, superalloys are subject to hot corrosion; a phenomenon potentially leading to catastrophic failure of turbine blades. However hot corrosion is understood to be highly te...

H. Haight, A. Potter, J. Sumner, S. Gray in Oxidation of Metals (2015)

Article

The Effect of Volatilisation of Refractory Metal Oxides on the Cyclic Oxidation of Ni-base Superalloys

The role of refractory metals on the bare oxidation behaviour of a range of compositionally complex single crystal Ni-base superalloys has been investigated using a range of techniques. It has been shown that ...

G. Brewster, I. M. Edmonds, S. Gray in Oxidation of Metals (2014)

Article

Multicentric breast cancer: clonality and prognostic studies

Clonality of multicentric breast cancer has traditionally been difficult to assess. We aimed to assess this using analysis of TP53 status (expression and mutation status). These results were then incorporated ...

R. Eeles, G. Knee, S. Jhavar, J. Mangion, S. Ebbs… in Breast Cancer Research and Treatment (2011)

Article

Vaskuläre Veränderungen in der Pathogenese der systemischen Sklerose

Die systemische Sklerose (SSc, Sklerodermie) ist eine Erkrankung des Bindegewebes, die durch eine Akkumulation von Proteinen der Extrazellularmatrix in der Haut und in inneren Organen gekennzeichnet ist. Weite...

J. H. W. Distler, J. R. Kalden, S. Gray, O. Distler in Zeitschrift für Rheumatologie (2004)

Article

Losartan attenuates endothelial hyperpermeability responses to VPF and high glucose but not angiotensin II

I. Idris, N. Tyreman, S. Gray, R. Donnelly in Diabetologia (2002)