Results 101 to 110 of about 4,575,316 (321)

Decay estimates for variable coefficient wave equations in exterior domains

, 2008
In this article we consider variable coefficient, time dependent wave equations in exterior domains. We prove localized energy estimates if the domain is star-shaped and global in time Strichartz estimates if the domain is strictly convex.Comment: 15 ...
A. Strauss Walter, Alinhac Serge, Christ Michael, E. Kenig Carlos, F. Smith Hart, F. Smith Hart, F. Smith Hart, F. Smith Hart, F. Smith Hart, F. Smith Hart, Keel Markus, Keel Markus, L. Metcalfe Jason, Metcalfe Jason, Metcalfe Jason, Mockenhaupt Gerd, S. Morawetz Cathleen, S. Strichartz Robert, Tataru Daniel, Tataru Daniel, Tataru Daniel   +20 more
core   +2 more sources

Topographic Correction of Landsat TM-5 and Landsat OLI-8 Imagery to Improve the Performance of Forest Classification in the Mountainous Terrain of Northeast Thailand

, 2017
The accurate mapping and monitoring of forests is essential for the sustainable management of forest ecosystems. Advancements in the Landsat satellite series have been very useful for various forest mapping applications.
U. Pimple, Asamaporn Sitthi, D. Simonetti, S. Pungkul, Kumron Leadprathom, A. Chidthaisong   +5 more
semanticscholar   +1 more source

Correction Algorithm For Sound Scattering Coefficient Measurements

The 22nd International Congress on Acoustics, Buenos Aires, 2016
Scattering coefficient measurements according to ISO 17497-1 are very sensitive to temperature and humidity changes in the reverberant room. Even variations as small as 0.1 K can significantly influence effective reverberation times and lead to wrong results.
openaire   +1 more source

Impact of APOE ε4 Genotype Load on Cognitive Function and Lipid Metabolism in Patients With Cerebral Small Vessel Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin, Haocheng Yang, Feng Liu, Sihao Lin, Junru Hu, Jian Wang, Yulan Gou   +6 more
wiley   +1 more source

Head-discharge relationship of flumes: Energy loss versus boundary layer [PDF]

Journal of Applied Research in Water and Wastewater, 2014
Long-throated flumes are measurement structures often used in water and wastewater systems to determine the flow discharge. The head-discharge relationship of long-throated flumes is traditionally determined following the critical flow theory and the ...
Matthieu Dufresne, José Vazquez
doaj  

Logarithmic corrections in the free energy of monomer-dimer model on plane lattices with free boundaries

, 2006
Using exact computations we study the classical hard-core monomer-dimer models on m x n plane lattice strips with free boundaries. For an arbitrary number v of monomers (or vacancies), we found a logarithmic correction term in the finite-size correction ...
D. J. A. Welsh, H. N. V. Temperley, J. Bondy, J. Hammersley, M. R. Garey, Yong Kong   +5 more
core   +1 more source

ℏ² Corrections to Semiclassical Transmission Coefficients

The Journal of Physical Chemistry A
The uniform semiclassical expression for the energy-dependent transmission probability through a barrier has been a staple of reaction rate theory for almost 90 years. Yet, when using the classical Euclidean action, the transmission probability is identical to 1/2 when the energy equals the barrier height since the Euclidean action vanishes at this ...
Sameernandan Upadhyayula, Eli Pollak
openaire   +2 more sources

The MMP‐9/TIMP‐1 Ratio and Concentrations of Osteopontin Are Elevated in Cerebrospinal Fluid of People With Multiple Sclerosis and Decrease After Autologous Hematopoietic Stem Cell Transplantation

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives To evaluate the utility of cerebrospinal fluid (CSF) biomarkers—matrix metalloproteinase‐9 (MMP‐9), tissue inhibitor of metalloproteinases‐1 (TIMP‐1), the MMP‐9/TIMP‐1 ratio, and osteopontin (OPN)—as indicators of blood–brain barrier (BBB) integrity and disease activity in people with relapsing–remitting multiple sclerosis (pwMS ...
Ivan Pavlovic, Ida Erngren, Kim Kultima, Anders Larsson, Malin Müller, Anna Wiberg, Joachim Burman   +6 more
wiley   +1 more source

Intensity Inhomogeneity Correction of Structural MR Images: A Data-Driven Approach to Define Input Algorithm Parameters

Front. Neuroinform., 2016
Intensity non-uniformity (INU) in magnetic resonance (MR) imaging is a major issue when conducting analyses of brain structural properties. An inaccurate INU correction may result in qualitative and quantitative misinterpretations. Several INU correction
Marco Ganzetti, N. Wenderoth, D. Mantini
semanticscholar   +1 more source

Higher Amyloid and Tau Burden Is Associated With Faster Decline on a Digital Cognitive Test

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective A 2‐min digital clock‐drawing test (DCTclock) captures more granular features of the clock‐drawing process than the pencil‐and‐paper clock‐drawing test, revealing more subtle deficits at the preclinical stage of Alzheimer's disease (AD). A previous cross‐sectional study demonstrated that worse DCTclock performance was associated with
Jessie Fanglu Fu, Talia Robinson, Marina Rodriguez Alonso, Adela Francis Malave, Roos J. Jutten, Michael J. Properzi, Brian C. Healy, Jackson C. Thompson, Grace Del Carmen Montenegro, Emma Thibault, Dana Penney, Randall Davis, Reisa A. Sperling, Kathryn V. Papp, Keith A. Johnson, Julie C. Price, Dorene M. Rentz   +16 more
wiley   +1 more source