Results 21 to 30 of about 19,111,092 (94)

High-resolution maps of the characteristic energy of precipitating auroral particles [PDF]

, 2001
For the first time we produce high-resolution maps of the characteristic energy of precipitating electrons from ground-based instrumentation in the auroral zone over northern Scandinavia. This is done by combining intensity-calibrated optical data at 557.
Kosch, M.J., del Pozo, C.F., Marple, S.R., Honary, F., Hagfors, T.   +4 more
core   +4 more sources

High-resolution 3D isotropic MR imaging of mouse flank tumours obtained in vivo with solenoid RF micro-coil [PDF]

, 2008
The investigation of mouse flank tumours by magnetic resonance imaging (MRI) is limited by the achievable spatial resolution, which is generally limited by the critical problem of signal-to-noise ratio.
Holmes, W.M., Condon, B., Dufès, Christine, Evans, T.R.J., Uchegbu, I.F., Maclellan, S., Schätzlein, A.G.   +6 more
core   +1 more source

Multi-Channel ScanSAR for High-Resolution Ultra-Wide-Swath Imaging [PDF]

, 2008
Multi-channel radar systems enable to overcome the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth ...
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

High resolution MRI of the brain at 4.7 Tesla using fast spin echo imaging [PDF]

, 2003
Over recent years, high field MR scanners (3 T and above) have become increasingly widespread due to potential advantages such as higher signal-to-noise ratio.
Thomas, D.L., Roberts, S., Yousry, T.A., Ordidge, R.J., De Vita, E., Parkes, H.G., Kinchesh, P., Parkes, H., Shmueli, K., Yousry, T., Turner, R., Thomas, D., Ordidge, R.   +12 more
core   +1 more source

Unveiling MOA-2007-BLG-192: An M Dwarf Hosting a Likely Super-Earth

The Astronomical Journal
We present an analysis of high-angular-resolution images of the microlensing target MOA-2007-BLG-192 using Keck adaptive optics and the Hubble Space Telescope.
Sean K. Terry, Jean-Philippe Beaulieu, David P. Bennett, Euan Hamdorf, Aparna Bhattacharya, Viveka Chaudhry, Andrew A. Cole, Naoki Koshimoto, Jay Anderson, Etienne Bachelet, Joshua W. Blackman, Ian A. Bond, Jessica R. Lu, Jean Baptiste Marquette, Clément Ranc, Natalia E. Rektsini, Kailash Sahu, Aikaterini Vandorou   +17 more
doaj   +1 more source

KMT-2023-BLG-2669: Ninth Free-floating Planet Candidate with θ E Measurements

The Astronomical Journal
We report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short duration (≲3 days) and a small amplitude (≲0.7 mag). From the analysis, we find
Youn Kil Jung, Kyu-Ha Hwang, Hongjing Yang, Andrew Gould, Jennifer C. Yee, Cheongho Han, Michael D. Albrow, Sun-Ju Chung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Weicheng Zang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge   +19 more
doaj   +1 more source

A localised co-rotating auroral absorption event observed near noon using imaging riometer and EISCAT [PDF]

, 1996
International audienceAn isolated region of energetic electron precipitation observed near local noon in the auroral zone has been investigated using imaging riometer (IRIS) and incoherent-scatter radar (EISCAT) techniques.
P. N. Collis, G. P. White, White, G. P., Collis, P. N., White, G.P., Hargreaves, J.K., Hargreaves, J. K., J. K. Hargreaves, Collis, P.N.   +8 more
core   +2 more sources

Staggered-SAR: A New Concept for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is the ideal sensor for the systematic observation of dynamic processes on the Earth’s surface. However, current SAR systems are limited, in that a wider coverage can only be achieved at the expense of a degraded azimuth ...
Villano, Michelangelo, Moreira, Alberto, Krieger, Gerhard   +2 more
core  

Finsler geometry on higher order tensor fields and applications to high angular resolution diffusion imaging. [PDF]

, 2009
We study 3D-multidirectional images, using Finsler geometry. The application considered here is in medical image analysis, specifically in High Angular Resolution Diffusion Imaging (HARDI) (Tuch et al. in Magn. Reson. Med.
Florack, L.M.J., Luc Florack, Florack, Luc, Astola, Laura, Florack, L., Laura Astola, Astola, L.J., Astola, L.   +7 more
core   +1 more source

IMAGING Reconstructing High-Resolution Images from

, 2008
This paper offers an overview of Super-Resolution Imaging, and the steps involved in creating high-resolution images from multiple low resolution ones.
Ben Cable, The Need, Multiple Low-resolution Images, For Super-resolution Imaging   +3 more
core