Results 41 to 50 of about 2,288,990 (250)

Diffusion Basis Spectrum Imaging of Tissue Microstructure and Early Treatment in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Conventional MRI cannot resolve the coexisting pathological processes within multiple sclerosis tissue. Diffusion Basis Spectrum Imaging decomposes the diffusion signal into fiber, cell, and hindered ratios indexing axonal integrity, cellularity, and extracellular space, respectively.
Apisit Kaewsanit, Aime Luna, Bradley Judge, Nicole Shelley, Karl Friedrichsen, Jayashree Rajamanickam, Zhude Tu, Yong Wang, Tammie L. S. Benzinger, Qing Wang, Matthew R. Brier   +10 more
wiley   +1 more source

Well-Posedness of Nonlinear Diffusion Equations with Nonlinear, Conservative Noise [PDF]

, 2019
Fehrman B, Gess B. Well-Posedness of Nonlinear Diffusion Equations with Nonlinear, Conservative Noise. ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS. 2019;233(1):249-322.We prove the pathwise well-posedness of stochastic porous media and fast diffusion ...
Gess, B., Gess, Benjamin, Fehrman, B., Fehrman, Benjamin   +3 more
core   +1 more source

Nonlinear instability in generalized nonlinear phase diffusion equation

, 2003
High-order versions of truncated generalized nonlinear phase diffusion equation of Kuramoto are analyzed. The main common feature of the equations is nonlinear internal energy supply. Numerical solutions are presented for some specific values of equation
Strunin, Dmitry V.
core   +1 more source

Full Reference Image Quality Assessment by Considering Intra-Block Structure and Inter-Block Texture

IEEE Access, 2020
The purpose of the image quality assessment is to evaluate image quality consistently with human's subjective evaluation. In image quality assessment, many structural features have been used to measure the quality degradation of an image.
Junfeng Yang, Wei Zhang, Xiaolong Li, Ting Zhou, Bo Ou   +4 more
doaj   +1 more source

dynoGP: Deep Gaussian Processes for Dynamic System Identification

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli, Marco Forgione, Dario Piga, Marco Zaffalon   +3 more
wiley   +1 more source

ACTIVE CONTOUR MODEL USING FRACTIONAL SYNC WAVE FUNCTION FOR MEDICAL IMAGE SEGMENTATION

Asia-Pacific Journal of Information Technology and Multimedia, 2016
Intensity inhomogeneity occurs when pixels in medical images overlap due to anomalies in medical imaging devices. These anomalies lead to difficult medical image segmentation.
Norshaliza Kamaruddin
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

An efficient linear numerical scheme for the Stefan problem, the porous medium equation and nonlinear cross-diffusion systems [PDF]

, 2017
summary:This paper deals with nonlinear diffusion problems which include the Stefan problem, the porous medium equation and cross-diffusion systems. We provide a linear scheme for these nonlinear diffusion problems. The proposed numerical scheme has many
Molati, Motlatsi, Murakawa, Hideki
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Model of radiation-stimulated growth of coherent structures in a crystalline medium with fast relaxation and slow diffusion

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022
Background. In this research constructed a model for the radiation-stimulated growth of coherent structures based on the nonlinear diffusion of point defects in a crystalline medium. Materials and methods.
V.M. Morozov
doaj   +1 more source