Results 91 to 100 of about 5,958 (274)

Common‐Mode Rejection Shifted‐Excitation Raman Difference Spectroscopy (CMR‐SERDS) Preserves Broad Structure Predictive of Soil Organic Carbon

Journal of Raman Spectroscopy, EarlyView.
Common‐mode rejection (CMR) is introduced as a physics‐motivated preprocessing method for shifted excitation Raman difference spectroscopy (SERDS) that removes the shared background of paired measurements while preserving the noncommon excitation‐dependent component. Applied to more than 900 North American soil samples, CMR improves soil organic carbon
Mahsa Zarei, Miayan Larose, Natalia V. Solomatova, Sadegh Shokatian, Edward Grant   +4 more
wiley   +1 more source

The Observation of Ground-level Enhancement GLE 77 by the Neutron Detectors of the Experimental Complex NEVOD

The Astrophysical Journal
A ground-level enhancement (GLE) event was observed by neutron detectors designed for the registration of extensive air showers (EASs) at the Experimental Complex (EC) NEVOD.
Evgenii Volkov, Kseniia Chelidze, Dmitrii Gromushkin, Semen Khokhlov, Evgenii Khomchuk, Anatoly Petrukhin, Ivan Shulzhenko   +6 more
doaj   +1 more source

Robust Spectroscopic Analysis Through Image‐Based Spectral Representation and Deep Learning Techniques

Journal of Raman Spectroscopy, EarlyView.
This study addresses calibration drift in Raman spectroscopy by transforming 1D spectra into 2D spider plot images processed by pretrained convolutional neural networks. This visualization strategy effectively converts detrimental spectral wavenumber shifts into simple image rotations, allowing the deep learning model to maintain high classification ...
Azadeh Mokari, Oleg Ryabchykov, Thomas Bocklitz   +2 more
wiley   +1 more source

Ultra high energy gamma ray point sources and cosmic ray anisotropy [PDF]

, 1994
The experimental set-up at the Baksan Air Shower Array, used to detect air showers above ~0.2xl0(^14)eV, is described. An estimation of the angular resolution using the cosmic ray shadow of the Sun and the Moon gives a value of ~2.5˚ which is consistent ...
Graham, Lilian Joan, Graham, L.J
core  

High Energy Cosmic Ray Observations with CREAM

, 2009
A cumulative flight duration of more than 100 days has been achieved by the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment, which has flown four times in Antarctica.
J. LINK, Y. S. YOON, J. J. BEATTY, P. ALLISON, J. A. JEON, M. BUÉNERD, S. E. LEE, MARROCCHESI, PIER SIMONE, N. H. PARK, L. DEROME, M. A. DUVERNOIS, S. Y. ZINN, A. MENCHACA ROCHA, S. NUTTER, E. S. SEO, MAESTRO, PAOLO, S. S. RYU, H. S. AHN, S. WAKELY, S. NAM, S. I. MOGNET, A. PUTZE, P. BHOYAR, A. MALININ, L. BARBIER, I. H. PARK, J. YANG, O. GANEL, J. W. MITCHELL, T. ANDERSON, M. GESKE, J. H. HAN, A. BARRAU, G. NA, BIGONGIARI, GABRIELE, S. COUTU, P. WALPOLE, T. J. BRANDT, S. SWORDY, K. C. KIM, R. BAZER BACHI, M. G. BAGLIESI, M. MANGIN BRINET, L. LUTZ, J. WU, M. H. LEE, N. B. CONKLIN, Y. SALLAZ DAMAZ, P. BOYLE, R. ZEI   +49 more
core  

The GAPS experiment - a search for light cosmic ray antinuclei [PDF]

The General Anti Particle Spectrometer (GAPS) is a balloon-borne cosmic-ray experiment which is currently in its last phase of construction, undergoing system testing, and scheduled for a long-duration balloon flight from McMurdo Station in the Antarctic
Re V., Riceputi E., Ghislotti L., Lazzaroni P., Manghisoni M.   +4 more
core   +1 more source

Physics from Time Variability of the VHE Blazar PKS 2155-304 [PDF]

, 2010
Blazars are the principal extragalactic sources of very high energy gamma-ray emission in the Universe. These objects constitute a sub-class of Active Galactic Nuclei whose emission is dominated by Doppler boosted non-thermal radiation from plasma ...
BARRES-DE-ALMEIDA, ULISSES
core  

THE AUGER ENGINEERING RADIO ARRAY

Acta Polytechnica, 2013
The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations.
Klaus Weidenhaupt
doaj   +1 more source

Increasing urban flash flood risk attributable to both climate and development

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A new event impact attribution methodology that combines convection‐permitting climate model data with flood inundation modelling was used for a five‐hour flash‐flooding event in the suburbs of Leeds in 2014. The results show increased urban flood extent due to both climate change (+16%) and increased urbanisation (+29%).
Daniel F. Cotterill, Dann Mitchell, Peter A. Stott, Paul Bates, Youtong Rong, Leanne Archer   +5 more
wiley   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source