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Biomedical subjects

P H Gaskell

Publications and source records attributed to P H Gaskell.

5 recordsLinked to original sources

Microscopy in solid state science.

The Microstructural Physics group at the Cavendish Laboratory is actively involved in a considerable number of research projects which cover a broad range of materials science. In this paper, we describe briefly several such projects, with particular emphasis given to the application of parallel-detection electron energy loss spectroscopy (PEELS) on a scanning transmission electron microscope (STEM) to the analysis of materials such as stainless steels, catalysts, and high temperature superconductors. In addition, we describe a number of related projects that are currently being carried out in the group, particularly those which utilise and develop novel STEM imaging and analytical techniques.

Aerosols

Rheology of bovine bone marrow.

The viscosity of bovine bone marrow was measured using samples taken from proximal and distal sites of five radii. The viscosity was found to be independent of shear rate and temperature above 37 degrees C (distal samples) and 42 degrees C (proximal samples). The viscosity of all samples fell to a lower limit of 0.04 Pas above these temperatures, irrespective of the treatments used. Below them the measured viscosity of the proximal marrow was some ten times that of the distal marrow at 35 degrees C and some 15 times that of the distal marrow at 30 degrees C. Below 30 degrees C the proximal marrow solidified. Distal marrow remained liquid to below 20 degrees C.

Animals