Results 71 to 80 of about 46,949 (300)

Diffusion Tensor Imaging in Parkinson's Disease and Parkinsonian Syndrome: A Systematic Review

Frontiers in Neurology, 2020
Diffusion tensor imaging (DTI) allows measuring fractional anisotropy and similar microstructural indices of the brain white matter. Lower than normal fractional anisotropy as well as higher than normal diffusivity is associated with loss of ...
Yu Zhang, Marc A. Burock
doaj   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Integrated Analysis and Visualization of Group Differences in Structural and Functional Brain Connectivity: Applications in Typical Ageing and Schizophrenia. [PDF]

PLoS ONE, 2015
Structural and functional brain connectivity are increasingly used to identify and analyze group differences in studies of brain disease. This study presents methods to analyze uni- and bi-modal brain connectivity and evaluate their ability to identify ...
Carolyn D Langen, Tonya White, M Arfan Ikram, Meike W Vernooij, Wiro J Niessen   +4 more
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Optic nerve fractional anisotropy ratios in glaucoma patients (n = 6) and controls (n = 6).

, 2019
Comparison of optic nerve fractional anisotropy ratios (%) in glaucoma patients (green) and controls (blue). Glaucoma patient ratios were calculated for “advanced” / “mild” optic nerve fractional anisotropy, and control subject ratios were calculated for
Yao Liu (173014), Bas Rokers (839541), Nathaniel Miller (6785780), Roman Krivochenitser (6785783)   +3 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Multi-site genetic analysis of diffusion images and voxelwise heritability analysis : a pilot project of the ENIGMA–DTI working group [PDF]

, 2013
The ENIGMA (Enhancing NeuroImaging Genetics through Meta-Analysis) Consortium was set up to analyze brain measures and genotypes from multiple sites across the world to improve the power to detect genetic variants that influence the brain.
Sprooten, Emma, Glahn, David C., Curran, Joanne E., Mandl, R.C., Almasy, L., Kochunov, Peter V., Hulshoff Pol, H.E., Curran, J.E., Starr, John M., Brouwer, Rachel M., Wardlaw, J.M., Mitchell, Braxton D., Brouwer, R.M., Wright, M.J., Bastin, M.E., Mandl, René C., Medland, Sarah E., Glahn, D.C., Sussmann, Jessika E., Medland, S.E., Martin, N.G., McMahon, K.L., Landman, Bennett A., Hulshoff Pol, Hilleke E., Nichols, T.E., Nichols, Thomas E., Toga, Arthur W., Peterson, C.P., Thompson, P.M., Jahanshad, N., Martin, Nicholas G., Wardlaw, Joanna M., Sprooten, E., Mitchell, B.D., McIntosh, A.M.; id_orcid, Pol, Hilleke E. Hulshoff, Hong, L. Elliot, Peterson, Charles P., Deary, Ian J., Hong, L.E., Kochunov, P.V., Jahanshad, Neda, Duggirala, Ravi, Bastin, Mark E., Fox, Peter T., McIntosh, Andrew M., de Zubicaray, G.I., de Zubicaray, Greig I., Landman, B.A., Fox, P.T., Thompson, Paul M., McMahon, Katie L., Blangero, J., Olvera, Rene L., Sussmann, J.E., Olvera, R.L., McIntosh, A.M., Wright, Margaret J., Duggirala, R., Almasy, Laura, Blangero, John, Starr, J.M., Toga, A.W., Deary, I.J.   +63 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Fractional anisotropy data for peak voxels of athletes > novices.

, 2019
Fractional anisotropy data for peak voxels of athletes > novices.
Yan-Ling Pi (6307811), Hua Zhu (131619), Feng-Juan Wang (6307817), Ke Liu (121889), Yin Wu (318049), Xu-Heng Wu (6307814), Jian Zhang (1682)   +6 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source