A
Andrew Fletcher
Researcher at University of Queensland
Publications - 62
Citations - 1244
Andrew Fletcher is an academic researcher from University of Queensland. The author has contributed to research in topics: Vegetation & Polarization (waves). The author has an hindex of 18, co-authored 62 publications receiving 1044 citations. Previous affiliations of Andrew Fletcher include Auckland University of Technology & Commonwealth Scientific and Industrial Research Organisation.
Papers
More filters
Journal ArticleDOI
Towards the Development of a Low Cost Airborne Sensing System to Monitor Dust Particles after Blasting at Open-Pit Mine Sites.
TL;DR: The development of a methodology to address the need of a more precise approach that is capable of characterizing blasting plumes in near-real time and the feasibility of coupling the sensor with the UAVs is described.
Journal ArticleDOI
The magnetic field of M31 from multi-wavelength radio polarization observations
TL;DR: In this article, the configuration of the magnetic field in M31 was deduced from radio polarization observations at the wavelengths 6, 11 and 20 cm, by fitting the observed azimuthal distribution of polarization angles, and finding that the regular magnetic field, averaged over scales 1--3 kpc, is almost perfectly axisymmetric in the radial range 8 to 14 kpc.
Journal ArticleDOI
Identification of drought-response genes and a study of their expression during sucrose accumulation and water deficit in sugarcane culms
Hayati M. Iskandar,Hayati M. Iskandar,Rosanne E. Casu,Andrew Fletcher,Susanne Schmidt,Jingsheng Xu,Jingsheng Xu,Donald J. Maclean,John M. Manners,Graham D. Bonnett +9 more
TL;DR: While there was a change in stress-related gene expression associated with sucrose accumulation, different mechanisms are responding to the stress induced by water deficit, because different genes had altered expression under water deficit.
Journal ArticleDOI
Analysis of spiral arms using anisotropic wavelets: gas, dust and magnetic fields in M51
I. Patrikeev,Andrew Fletcher,R. Stepanov,Rainer Beck,Elly M. Berkhuijsen,P. Frick,Cathy Horellou +6 more
TL;DR: In this paper, anisotropic wavelets are used to isolate elongated structures in galactic images, such as spiral arms, using a technique of isolating elongated structure in galaxies images, and apply this to maps of CO, infrared and radio continuum emission of the grand-design spiral galaxy M51.
Journal ArticleDOI
The nature of the low-frequency emission of M51: First observations of a nearby galaxy with LOFAR
D. D. Mulcahy,A. Horneffer,Ron Beck,George Heald,Andrew Fletcher,Anna M. M. Scaife,B. Adebahr,James M. Anderson,Annalisa Bonafede,Marcus Brüggen,G. Brunetti,Krzysztof T. Chyzy,John Conway,Torsten A. Enßlin,M. Haverkorn,Cathy Horellou,M. Iacobelli,Frank P. Israel,H. Junklewitz,W. Jurusik,J. Kohler,M. Kuniyoshi,Emanuela Orrú,Rosita Paladino,Roberto Pizzo,W. Reich,H. J. A. Röttgering +26 more
TL;DR: In this paper, the authors used LOFAR High Frequency Antennas (HBA) to image the spiral galaxy M51 at the mean frequency of 151 MHz with 20 arcsec resolution and 0.3 mJy rms noise.