Results 51 to 60 of about 532,382 (296)

An SNR Estimation Technique Based on Deep Learning

Electronics, 2019
Signal-to-noise ratio (SNR) is a priori information necessary for many signal processing algorithms or techniques. However, there are many problems exsisting in conventional SNR estimation techniques, such as limited application range of modulation types,
Kai Yang, Zhitao Huang, Xiang Wang, Fenghua Wang   +3 more
semanticscholar   +1 more source

The molecular clump towards the eastern border of SNR G18.8+0.3

, 2012
The eastern border of the SNR G18.8+0.3, close to an HII regions complex, is a very interesting region to study the molecular gas that it is probably in contact with the SNR shock front.
A. Petriella, Anderson, Arnal, Bally, Churchwell, Churchwell, Cortes, Cortes, Dubner, Dubner, Dubner, Dunham, E. Giacani, Frerking, G. Dubner, Giveon, Helfand, M. E. Ortega, M. Rubio, Milam, Robitaille, Rosolowsky, S. Paron, Savage, Schuller, Scoville, Simon, Sridharan, Tian, Wood, Wright   +30 more
core   +1 more source

SNR Enhancement in Phase-Sensitive OTDR with Adaptive 2-D Bilateral Filtering Algorithm

IEEE Photonics Journal, 2017
An adaptive image restoration algorithm based on 2-D bilateral filtering has been proposed to enhance the signal-to-noise ratio (SNR) of the intrusion location for phase-sensitive optical time domain reflectometry (Ф-OTDR) system.
Haijun He, L. Shao, Hengchao Li, W. Pan, B. Luo, X. Zou, Lianshan Yan   +6 more
semanticscholar   +1 more source

Chronic stress-induced neurodegenerative changes in Wistar rats: Hippocampal evidence and the mitigating effects of Allium Sativum

Babcock University Medical Journal
Objective: Stress triggers a biological response perceiving a threat, chemicals and hormones surge throughout the body, after long-term exposure, stress accelerates cell ageing, immune senescence, and some age-related diseases such as neurodegenerative ...
Opeyemi Adebola Adetunji, Adeola Oluwafunmbi Adegunle , Bayo Olufunso Adeoye , Joseph Chigbogu Nwobi , Oluseyi Sunday Fabiyi , Oyedayo Phillips Akano , Sanmi Tunde Ogunsanya , Samson Oluwole Oyewumi , Nnenna Linda Nwobi , Ayodeji David Adeoye , Olugbenga Olawole Olayinka   +10 more
doaj   +1 more source

Detection performance analysis of hybrid MIMO radar

The Journal of Engineering, 2019
This study focuses on the detection performance analysis of a notional hybrid MIMO radar, which can be seen as a combination of the phased-array and distributed MIMO radars.
Qilei Zhang, Manqing Wu, Wenxian Yu
doaj   +1 more source

Radio-Continuum Observations Of Small, Radially Polarised Supernova Remnant J0519-6902 In The Large Magellanic Cloud

, 2012
We report on new Australian Telescope Compact Array (ATCA) observations of SNR J0519-6902. The Supernova Remnant (SNR) is small in size (~8 pc) and exhibits a typical SNR spectrum of alpha = -0.53 +- 0.07, with steeper spectral indices found towards the ...
Bozzetto, L. M., Crawford, E. J., Filipović, M. D., Urošević, D.   +3 more
core   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +1 more source

Physical Structure and Nature of Supernova Remnants in M101

, 2012
Supernova remnant (SNR) candidates in the giant spiral galaxy M101 have been previously identified from ground-based H-alpha and [SII] images. We have used archival Hubble Space Telescope (HST) H-alpha and broad-band images as well as stellar photometry ...
Badenes, Borkowski, Bosma, Bryan C. Dunne, C.-H. Rosie Chen, Caleb K. Grimes, Chen, Desai, Dunne, Eck, Holt, Immler, Kip D. Kuntz, Kuntz, Lai, Long, Matonick, Mukai, Nicholas A. Franchetti, Pannuti, Pannuti, Patnaude, Pence, Robert A. Gruendl, Snowden, Tabitha M. Aldridge, Thomas G. Pannuti, Wang, Williams, Williams, You-Hua Chu   +30 more
core   +1 more source

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel, Timothy P. Siejka, Cassandra Marotta, Josh J. Y. Lee, Kelly Bertram, Terence J. O'Brien, Meng Law, Lucy Vivash, Ian H. Harding   +8 more
wiley   +1 more source

Radio confirmation of Galactic supernova remnant G308.3-1.4

, 2012
We present radio-continuum observations of the Galactic supernova remnant (SNR) candidate, G308.3-1.4, made with the Australia Telescope Compact Array, Molonglo Observatory Synthesis Telescope and the Parkes radio telescope.
Collier, J. D., Crawford, E. J., De Horta, A. Y., Filipovic, M. D., Stootman, F. H., Tothill, N. F. H., Urosevic, D.   +6 more
core   +1 more source