Results 101 to 110 of about 436,409 (287)

ON THE ANISOTROPY OF THE RECOILLESS FRACTION IN FeCO₃AT 4.2 K

Le Journal de Physique Colloques, 1974
The abnormally large Goldanskii-Karyagin Effect in the antiferromagnetic phase of FeCO3 reporterd by Kündig et al. is questioned. In contrast to the 55 % deviation of the 2nd and 5th line intensities from the isotropic case observed by them we found a deviation only if about 10 %.
Nagy, D., Kulcsár, K., Spiering, H., Zimmerman, R.   +3 more
openaire   +2 more sources

1000-subject high-resolution fractional anisotropy template

Fractional anisotropy template in MNI 2009b NLIN Asymmetric space (0.5 mm resolution).
Andreas Horn (7066955), Gavin Elias (17016891), Ningfei Li (17016894)   +2 more
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Quasi-P-Wave Reverse Time Migration in TTI Media with a Generalized Fractional Convolution Stencil

Fractal and Fractional
In seismic modeling and reverse time migration (RTM), incorporating anisotropy is crucial for accurate wavefield modeling and high-quality images. Due to the trade-off between computational cost and simulation accuracy, the pure quasi-P-wave equation has
Shanyuan Qin, Jidong Yang, Ning Qin, Jianping Huang, Kun Tian   +4 more
doaj   +1 more source

Activation of less affected corticospinal tract and poor motor outcome in hemiplegic pediatric patients: a diffusion tensor tractography imaging study

Neural Regeneration Research, 2015
The less affected hemisphere is important in motor recovery in mature brains. However, in terms of motor outcome in immature brains, no study has been reported on the less affected corticospinal tract in hemiplegic pediatric patients.
Jin Hyun Kim, Su Min Son
doaj   +1 more source

Fractional location problems [PDF]

In this paper we analyze some variants of the classical uncapacitated facility location problem with a ratio as an objective function. Using basic concepts and results of fractional programming, we identify a class of one-level fractional location ...
Frenk, J.B.G., Gromicho, J.A.S., Barros, A.I.   +2 more
core  

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Implementation of anatomical navigators for real time motion correction in diffusion tensor imaging [PDF]

, 2012
Includes bibliographical references.Prospective motion correction methods using an optical system, diffusion-weighted prospective acquisition correction, or a free induction decay navigator have recently been applied to correct for motion in diffusion ...
Alhamud, Alkathafi Ali
core   +1 more source

Tensor-derived diffusion MRI metrics and NODDI in multiple sclerosis classification

NeuroImage: Clinical
Background: Multi-compartment diffusion models and multi-shell acquisitions are increasingly used to overcome limitations of conventional diffusion tensor imaging, but require longer scans and more complex processing.
Julia Lasek, Weronika Mazur-Rosmus, Marcin Wnuk, Monika Marona, Klaudia Kaczówka, Agnieszka Słowik, Artur Krzyżak   +6 more
doaj   +1 more source

Resting-state interhemispheric motor connectivity and white matter integrity correlate with motor impairment in chronic stroke

Frontiers in Neurology, 2013
Functional and structural reorganization in the brain occurs after stroke. The ability to predict motor outcomes may depend on patterns of brain functional and structural connectivity.
Joyce L Chen, Joyce L Chen, Gottfried eSchlaug   +2 more
doaj   +1 more source