David Hann

Contact

• workRoom B112 Coates
  University Park
  Nottingham
  NG7 2RD
  UK
• work0115 951 4153
• david.hann@nottingham.ac.uk

Research Summary

Using a wavelet based technique to measure the size of plants from aerial photography.

Thermo acoustic engies

Development of Measurement techniques

Recent Publications

• HANN, DB, IAMMI, J and FOLKES, J, 2012. Keyholing Or Conduction? Prediction Of Laser Penetration Depth Lasers In Engineering. 22(5-6), 309-317
• ALGHOUL, SK, EASTWICK, CN and HANN, DB, 2011. Normal Droplet Impact On Horizontal Moving Films: An Investigation Of Impact Behaviour And Regimes Experiments In Fluids. 50(5), 1305-1316
• HANN, DB, IAMMI, J and FOLKES, J, 2011. A Simple Methodology For Predicting Laser-Weld Properties From Material And Laser Parameters Journal Of Physics D-Applied Physics. 44(44), -
• GARRITY, S.R., VIERLING, L.A., SMITH, A.M.S. and HANN. D.B., 2008. Suitability of Spatial Wavelet Analysis (SWA) for the automatic quantification of shrub cover in a semi-arid landscape Canadian Journal of Remote Sensing. 34(Supl 2), S376-384

• View all publications

• HANN, DB, IAMMI, J and FOLKES, J, 2012. Keyholing Or Conduction? Prediction Of Laser Penetration Depth Lasers In Engineering. 22(5-6), 309-317
• ALGHOUL, SK, EASTWICK, CN and HANN, DB, 2011. Normal Droplet Impact On Horizontal Moving Films: An Investigation Of Impact Behaviour And Regimes Experiments In Fluids. 50(5), 1305-1316
• HANN, DB, IAMMI, J and FOLKES, J, 2011. A Simple Methodology For Predicting Laser-Weld Properties From Material And Laser Parameters Journal Of Physics D-Applied Physics. 44(44), -
• GARRITY, S.R., VIERLING, L.A., SMITH, A.M.S. and HANN. D.B., 2008. Suitability of Spatial Wavelet Analysis (SWA) for the automatic quantification of shrub cover in a semi-arid landscape Canadian Journal of Remote Sensing. 34(Supl 2), S376-384
• SMITH, AMS, STRAND, EK, STEELE, CM, HANN, DB, GARRITY, SR, FALKOWSKI, MJ and EVANS, JS, 2008. Production Of Vegetation Spatial-Structure Maps By Per-Object Analysis Of Juniper Encroachment In Multitemporal Aerial Photographs Canadian Journal of Remote Sensing. 34(S2), S268-S285
• GARRITY, SR, VIERLING, LA, SMITH, AMS, FALKOWSKI, MJ and HANN, DB, 2008. Automatic Detection Of Shrub Location, Crown Area, And Cover Using Spatial Wavelet Analysis And Aerial Photography Canadian Journal of Remote Sensing. 34(S2), S376-S384
• STRAND, E., SMITH, A.M., BUNTING, S.C., VIERLING, L.A., HANN, D.B. and GESSLER, P.E., 2006. Wavelet estimation of plant spatial patterns in multitemporal aerial photography International Journal of Remote Sensing. 27(10), 2049-2054
• HANN, D.B. and FITZPATRICK, J.A., 2005. Wavelet analysis of mode switching between two combustion instability frequencies In: Proceedings of the European Combustion Meeting 2005.
• STRAND, E.K., VIERLING L.A., SMITH, A.M.S., BUNTING, S.C., HANN, D.B. and GESSLER, P.E., 2005. Wavelet estimation of plant spatial patterns in multi-temporal aerial photography In: Eos transactions, American Geophysical Union, 86, 52, Fall Meeting, Supplemental, B43B-0287.
• BUICK, J.M., HANN, D.B. and COSGROVE, J.A., 2004. Variation in the thickness of a fluid interface due to internal wave propagation: A Lattice Boltzmann simulation American Journal of Applied Sciences. 1(1), 5-11
• HANN, D.B. and FITZPATRICK, J.A., 2004. Flame interactions with acoustic and bulk mode instabilities in a pre-mixed dump combustor In: Proceedings of the 12th International Symposium on the Application of Laser Techniques to Fluid Mechanics.
• DOUGLAS, S.H., GREATED, C.A., ROYLES, R. and HANN, D.B., 2003. Analysis of non-stationary doppler signals Acta Acustica united with Acustica. 89(3), 430-434
• HANN, D.B., SMITH, A.M.S. and POWELL, A.K., 2003. Classification of off-diagonal points in a co-occurrence matrix International Journal of Remote Sensing. 24(9), 1949-1956
• HANN, D.B. and FITZPATRICK, J.A., 2003. Analysis of non-linear thermo-acoustic interactions in a premixed dump combustor In: International Colloquium on Combustion and Noise Control. 13-15
• BALDI, S., HANN, D.B. and YIANNESKIS, M., 2002. On the measurement of turbulence energy dissipation in stirred vessels with PIV techniques In: Proceedings of the 11th International Symposium on the Application of Laser Techniques to Fluid Mechanics.
• JACK, S. H., HANN, D. B. and GREATED, C. A., 1999. The influence of a standing wave on laser Doppler signals Measurement Science and Technology. VOL 10(NUMBER 12), 1279-1285
• HANN, D. and GREATED, C. A., 1994. ACOUSTIC MEASUREMENTS IN FLOWS USING PHOTON-CORRELATION SPECTROSCOPY: Measurement Science & Technology Measurement Science & Technology. 5(2), 157-164