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Browsing by Author "Kaye, Paul H."
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Light scattering from non-spherical airborne particles : experimental and theoretical comparisons
Hirst, E.; Kaye, Paul H.; Guppy, J.R. (1994)A laser light-scattering instrument has been designed to permit an investigation of the spatial intensity distribution of light scattered by individual airborne particles constrained within a laminar flow, with a view to ... -
A light scattering instrument for investigating cloud ice microcrystal morphology
Kaye, Paul H.; Hirst, E.; Ulanowski, Z.; Hesse, E.; Greenaway, R.; DeMott, P. (2008)We describe an optical scattering instrument designed to assess the shapes and sizes of microscopic atmospheric cloud particles, especially the smallest ice crystals that can profoundly affect cloud processes and radiative ... -
A low-cost apparatus and method for the detection of a fluid-borne particle.
School of Physics, Astronomy and Mathematics; Kaye, Paul H. (2011-04-13) -
A low-cost multi-channel aerosol fluorescence sensor for networked deployment
Kaye, Paul H.; Hirst, E.; Foot, V.E.; Clark, J.M.; Baxter, K. (2004) -
A low-cost multi-channel aerosol fluorescence sensor for networked deployment.
Kaye, Paul H.; Hirst, E.; Foot, V.E.; Clark, J.M.; Baxter, K. (2004)We describe a low-cost prototype bio-aerosol fluorescence sensor designed for unattended deployment in medium to large area networks. The sensor uses two compact xenon flash units to excite fluorescence in an aerosol sample ... -
Low-cost real-time multi-parameter bio-aerosol sensors (invited paper)
Foot, V.E.; Kaye, Paul H.; Stanley, Warren; Barrington, S.J.; Gallagher, M.W.; Gabey, A. (2008-06-16)Sensors that are able to provide reagent-free, continuous monitoring for potential bio-aerosol hazards are required in many environments. In general, increasing the number of optical and spectroscopic properties of individual ... -
Magnetic anisotropy of asbestos fibres
Ulanowski, Zbigniew; Kaye, Paul H. (1999)The anisotropy of magnetic susceptibility of single asbestos fibers is measured. The alignment of both chrysotile and crocidolite fibers in magnetic fields is found to be due to the anisotropy. The average measured anisotropy ... -
The mean physical and optical properties of regional haze dominated by biomass burning aerosol measured from the C-130 aircraft during SAFARI 2000
Haywood, J.M.; Osborne, S.; Francis, P.N.; Keil, A.; Formenti, P.; Andreae, M.O.; Kaye, Paul H. (2003)Instrumentation on the Met Office C-130 aircraft measured aerosol physical and optical properties during the Southern African Regional Science Initiative (SAFARI 2000) in September 2002 while flying from Windhoek, Namibia. ... -
Measurement and modeling of light scattering by small particles
Hesse, Evelyn; Ulanowski, Zbigniew; McCall, D.; Stopford, Chris; Kaye, Paul H. (University of Bremen, 2008)At the University of Hertfordshire we measure and model light scattering by small particles, in particular by such relevant for climate research. The measurements comprise phase functions, linear polarization of single ... -
Measurement and modeling of light scattering by small particles.
Hesse, E.; Ulanowski, Z.; McCall, D.; Stopford, C.; Kaye, Paul H. (University of Bremen, 2008)At the University of Hertfordshire we measure and model light scattering by small particles, in particular by such relevant for climate research. The measurements comprise phase functions, linear polarization of single ... -
Measurement of red-cell rheology using 5mu-m glass micropipettes with2-mu-m 3-mu-m constrictions
Clark, P. A.; Willars, E. J.; Barnes, A. J.; Hunt, W. P.; Philpott, D.; Kaye, Paul H. (1985) -
Measurement of the charge of airborne 3-10 um spherical dielectric particles charged in an AC unipolar charger
Dalley, J.E.J.; Greenaway, R.; Ulanowski, Z.; Hesse, E.; Kaye, Paul H. (2005)The charges of airborne 3, 5 and 10 um spherical dielectric test particles passing through a novel AC unipolar charger have been measured individually. The measurements show the effectiveness of the charger and provide ... -
Measurements and comparison of primary biological aerosol above and below a tropical forest canopy using a dual channel fluorescence spectrometer
Gabey, A.; Gallagher, M.; Whitehead, J.; Dorsey, J.R.; Kaye, Paul H.; Stanley, W. (2010)Aerosol particle size distributions were measured below and above a tropical rainforest canopy in Borneo, Malaysia, in June/July 2008 using the WIBS-3: a single particle dual channel fluorescence spectrometer. Material in ... -
Measurements of deformed droplets and droplets with inclusions in an aerodynamic particle sizer
Secker, D.R.; Hirst, E.; Kaye, Paul H. (2000)This paper describes the progress on a project aimed at quantifying the degree of deformation experienced by liquid droplets in the TSI Aerodynamic Particle Sizer with a view to providing automatic correction for errors ... -
Method and Apparatus for the Detection of Asbestos Fibres
School of Physics, Astronomy and Mathematics; Particle Instruments and diagnostics; Ulanowski, Joseph; Kaye, Paul H. (2002-05-01) -
Method and Apparatus for the Real-time Characterisation of Particles Suspended within a Fluid Medium.
Particle Instruments and diagnostics; Kaye, Paul H.; Hirst, Edwin (2001-03-06)This invention describes a method by which microparticles, typically in the size range from 0.3um to 100um, which are carried in a fluid suspension, may be rapidly detected and characterized. The method primarily relates ... -
A method of investigating the orientational behaviour of fibrous particles in gaseous flow
Hirst, E.; Kaye, Paul H. (1995) -
A Miniature Airborne Particle Classifier (APC)
Stopford, Chris; Kaye, Paul H.; Hirst, Edwin; Ulanowski, Zbigniew (2011-09-04)The single greatest source of uncertainty in the estimates of climate sensitivity to either natural or man-made changes continues to be clouds (IPCC 2001, 2007). Much of this uncertainty arises from the lack of information ... -
Miniature, low-cost optical particle counters
Ulanowski, Joseph; Kaye, Paul H.; Hirst, Edwin; Wieser, Andreas; Stanley, Warren (2013)A range of miniature, low-cost optical particle counters for characterizing atmospheric particles has been developed. They are intended for use with disposable balloon-borne radiosondes, dropsondes or in dense ground-based ... -
Modelling diffraction by facetted particles
Hesse, Evelyn; Macke, Andreas; Havemann, Stephan; Baran, Anthony; Ulanowski, Zbigniew; Kaye, Paul H. (2012-01-23)A method to approximate azimuthally resolved light scattering patterns and phase functions due to diffraction and external reflection by strongly absorbing facetted particles is demonstrated for a cube and compared with ...