Results 41 to 50 of about 144,334 (313)

Du solo à la cordée : Réussir le lancement d'une innovation par l'établissement d'un standard professionnel compatible - le cas de ASB° chez SNR Roulements

, 1999
International audienceL’innovation technologique est reconnue comme l’un des atouts majeurs de la compétitivité des entreprises. La qualité de la conduite de l’innovation revêt ainsi une importance primordiale pour ces entreprises, afin qu’elles retirent
Salle, Robert, Nantua, René, Michel, Daniel   +2 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

SNR-adaptive OCT angiography enabled by statistical characterization of intensity and decorrelation with multi-variate time series model

, 2019
In OCT angiography (OCTA), decorrelation computation has been widely used as a local motion index to identify dynamic flow from static tissues, but its dependence on SNR severely degrades the vascular visibility, particularly in low- SNR regions.
Xining Wu (6863210), Ruixiang Chen (8884415), Shiyong Zhao (2253604), Ying Gu (203149), Luzhe Huang (9500480), Haixia Qiu (1894459), Peng Li (69518), Shanshan Yang (423383), Yiming Fu (17506050)   +8 more
core   +1 more source

On the influence of detection tests on deterministic parameters estimation [PDF]

, 2006
In non-linear estimation problems three distinct regions of operation can be observed. In the asymptotic region, the Mean Square Error (MSE) of Maximum Likelihood Estimators (MLE) is small and, in many cases,close to the Cramer-Rao bound (CRB).
Chaumette, Eric, Galy, J., Larzabal, Pascal, Galy, Jerome, Larzabal, P., Vincent, François   +5 more
core   +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

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

Distance Estimate of Tycho’s SNR

Journal of Physics: Conference Series, 2018
5 pages, 2 figures, conference PhysicA.SPb ...
Kozlova, A. V., Blinnikov, S. I.
openaire   +2 more sources

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Flow diagram illustrating the calculation of the SNR and SNR-wall.

, 2023
A) Time domain signal for the SNR calculation takes the power Tt(c) of the P300 peak as the consciously generated EEG change. B) Frequency domain signal power for the SNR calculation takes the power Tt(c) and assumes a conscious 40% reduction of the ...
Bernd Porr (32394), Lucía Muñoz Bohollo (14149465)   +1 more
core   +1 more source