Showing 621 - 640 results of 5,125 for search '"diffusion"', query time: 0.05s Refine Results
  1. 621

    An MRI Deep Brain Adult Template With An Advanced Atlas-Based Tool For Diffusion Tensor Imaging Analysis by Jean-Jacques Lemaire, Rémi Chaix, Aigerim Dautkulova, Anna Sontheimer, Jérôme Coste, Ana-Raquel Marques, Adrien Wohrer, Carine Chassain, Omar Ouachikh, Omar Ait-Aider, Denys Fontaine

    Published 2024-11-01
    “…This new tool comprises a young-male-adult MRI template spatially normalized to the ICBM152, containing T1, inversion-recovery, and diffusion MRI datasets (in vivo acquisition), and an MRI atlas of 118 labelled deep brain structures. …”
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  2. 622

    A New Way to Generate an Exponential Finite Difference Scheme for 2D Convection-Diffusion Equations by Caihua Wang

    Published 2014-01-01
    “…The idea of direction changing and order reducing is proposed to generate an exponential difference scheme over a five-point stencil for solving two-dimensional (2D) convection-diffusion equation with source term. During the derivation process, the higher order derivatives along y-direction are removed to the derivatives along x-direction iteratively using information given by the original differential equation (similarly from x-direction to y-direction) and then instead of keeping finite terms in the Taylor series expansion, infinite terms which constitute convergent series are kept on deriving the exponential coefficients of the scheme. …”
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  3. 623

    Coronary Plaque Boundary Enhancement in IVUS Image by Using a Modified Perona-Malik Diffusion Filter by S. Anam, E. Uchino, N. Suetake

    Published 2014-01-01
    “…We propose a modified Perona-Malik diffusion (PMD) filter to enhance a coronary plaque boundary by considering the conditions peculiar to an intravascular ultrasound (IVUS) image. …”
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  4. 624
  5. 625

    Stability in Mean of Partial Variables for Coupled Stochastic Reaction-Diffusion Systems on Networks: A Graph Approach by Yonggui Kao, Hamid Reza Karimi

    Published 2014-01-01
    “…This paper is devoted to investigating stability in mean of partial variables for coupled stochastic reaction-diffusion systems on networks (CSRDSNs). By transforming the integral of the trajectory with respect to spatial variables as the solution of the stochastic ordinary differential equations (SODE) and using Itô formula, we establish some novel stability principles for uniform stability in mean, asymptotic stability in mean, uniformly asymptotic stability in mean, and exponential stability in mean of partial variables for CSRDSNs. …”
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  6. 626
  7. 627

    Thermal Wavelength Measurement of Nanofluid in an Optical-Fiber Thermal Wave Cavity Technique to Determine the Thermal Diffusivity by Monir Noroozi, Bijan Mohammadi, Shahidan Radiman, Azmi Zakaria

    Published 2018-01-01
    “…The application of optical-fiber thermal wave cavity (OF-TWC) technique was investigated to measure the thermal diffusivity of Ag nanofluids. The thermal diffusivity was obtained by measuring the thermal wavelength of sample in a cavity scan mode. …”
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  8. 628

    Systemic Relapse in a Young Adult Patient with Primary CNS Diffuse Large B-Cell Lymphoma by Adam Khorasanchi, Zachary Benson, Misty Hall, Nelya Ebadirad, Mohammad H. Gharavi, Patrick Willard, Miranda Chimzar, John McKay, Gary Simmons, Victor Yazbeck

    Published 2022-01-01
    “…Primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL) is a rare form of non-Hodgkin’s lymphoma, characterized by an aggressive disease course. …”
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  9. 629
  10. 630

    Pricing of American Put Option under a Jump Diffusion Process with Stochastic Volatility in an Incomplete Market by Shuang Li, Yanli Zhou, Xinfeng Ruan, B. Wiwatanapataphee

    Published 2014-01-01
    “…We study the pricing of American options in an incomplete market in which the dynamics of the underlying risky asset is driven by a jump diffusion process with stochastic volatility. By employing a risk-minimization criterion, we obtain the Radon-Nikodym derivative for the minimal martingale measure and consequently a linear complementarity problem (LCP) for American option price. …”
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    Article
  11. 631

    Application of modified extended direct algebraic method to nonlinear fractional diffusion reaction equation with cubic nonlinearity by Muhammad Bilal, Alamgir Khan, Ikram Ullah, Hasib Khan, Jehad Alzabut, Hisham Mohammad Alkhawar

    Published 2025-02-01
    “…Abstract This work uses the modified Extended Direct Algebraic Method (mEDAM) with conformable derivatives to obtain accurate solutions for the diffusion-reaction equation with cubic nonlinearity and the nonlinear fractional generalised density-independent DR problem. …”
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  12. 632
  13. 633

    Stationary Patterns of a Cross-Diffusion Prey-Predator Model with Holling Type II Functional Response by Hongtao Zhang, Jingfu Zhao

    Published 2023-01-01
    “…In this paper, we consider positive steady-state solutions of a cross-diffusions prey-predator model with Holling type II functional response. …”
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  14. 634
  15. 635

    Double-Diffusive MHD Viscous Fluid Flow in a Porous Medium in the Presence of Cattaneo-Christov Theories by Bidemi Olumide Falodun, Adeola John Omowaye, Funmilayo Helen Oyelami, Homan Emadifar, Ahmed A. Hamoud, S. M. Atif

    Published 2022-01-01
    “…The Cattaneo-Christov model will be used to examine the significance of heat generation, viscous dissipation, and thermal radiation on a double-diffusive MHD flow in this study. In this study, it was discovered that heat and mass transfer can be affected by nonlinear buoyancy significance. …”
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  16. 636
  17. 637

    Transplanted Endothelial Progenitor Cells Improve Ischemia Muscle Regeneration in Mice by Diffusion Tensor MR Imaging by Xin-Gui Peng, Yingying Bai, Judy R. James, Darya P. Shlapak, Shenghong Ju

    Published 2016-01-01
    “…The edema regions of diffusion restriction (high signal in diffusion weighted imaging) were decreased in the ischemic muscle of EPCs treated mice after 14 days compared with the controls. …”
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  18. 638
  19. 639

    Severe Human Intestinal Spirochetosis: An Unusual Cause of Diffuse Colonic Ulcerations in a Patient Living with HIV by T. A. Ajose, J. Aniekwena, V. S. Effoe, M. Simien

    Published 2019-01-01
    “…Infectious work up was negative, and colonoscopy revealed severe diffuse colonic ulcerations. Histopathologic analysis and Treponemal pallidum immunostaining confirmed the diagnosis of intestinal spirochetosis. …”
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  20. 640

    An inverse time-dependent source problem for a time-fractional diffusion equation with nonlocal boundary conditions by Farid Mihoubi, Brahim Nouiri

    Published 2024-01-01
    “…In this paper, we investigate an inverse time-dependent source problem for a time-fractional diffusion equation with nonlocal boundary and integral over-determination conditions. …”
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