Results 171 to 180 of about 366,215 (335)
Medical Physics, EarlyView.Abstract Background Clear representation of anatomy is essential in the assessment of pathology in computed tomography (CT). With the introduction of photon‐counting CT (PCCT) and more advanced iterative reconstruction (IR) algorithms into clinical practice, there is potential to improve low‐contrast detectability in CT protocols.
Jessica D. Flores +10 more
wiley +1 more source
On ground states for the 2D Schrödinger equation with combined nonlinearities and harmonic potential
Studies in Applied Mathematics, Volume 150, Issue 1, Page 92-118, January 2023., 2023 Abstract We consider the nonlinear Schrödinger equation with a harmonic potential in the presence of two combined energy‐subcritical power nonlinearities. We assume that the larger power is defocusing, and the smaller power is focusing. Such a framework includes physical models, and ensures that finite energy solutions are global in time.
Rémi Carles, Yavdat Il'yasov
wiley +1 more source
Exact Solutions of a Class of Nonlinear Elliptic Systems of a Special Type
Известия Иркутского государственного университета: Серия "Математика", 2015 In paper the problem of construction of exact solutions for nonlinear system of two equations of elliptic type is studied. Nonlinear systems of the equations of elliptic type are applied as mathematical models in the theory warm and a mass transfer of ...
A.A. Kosov, E.I. Semenov
doaj
Semilinear elliptic equations with sublinear indefinite nonlinearities [PDF]
, 1999 Stan Alama
openalex +1 more source
Endometrial cancer tissue features clusterization by kurtosis MRI
Medical Physics, EarlyView.Abstract Background Endometrial cancer (EC) is one of the most common gynecological malignancies and the second most common gynecological malignancy cause of death in women. Heterogeneous tissues with different grades of complexity and different diffusion properties characterize the EC. Several diffusion magnetic resonance imaging (DMRI) protocols have
Alessandra Maiuro +10 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.Abstract Purpose To develop and evaluate a physics‐driven, saturation contrast‐aware, deep‐learning‐based framework for motion artifact correction in CEST MRI. Methods A neural network was designed to correct motion artifacts directly from a Z‐spectrum frequency (Ω) domain rather than an image spatial domain. Motion artifacts were simulated by modeling
Munendra Singh +6 more
wiley +1 more source
On elliptic equations related to self-similar solutions for nonlinear heat equations
, 1986 Yoshikazu Giga
openalex +1 more source
Estimates for the gradient of solutions of nonlinear elliptic equations withL 1 data [PDF]
, 2000 Angelo Alvino +2 more
openalex +1 more source
A Note on a Nonlinear Elliptic Equation [PDF]
Indiana University Mathematics Journal, 1972 openaire +2 more sources
A note on the Liouville theorem of fully nonlinear elliptic equations [PDF]
arXivIn this paper, a new method is presented to investigate the asymptotic behavior of solutions to the fully nonlinear uniformly elliptic equation $F(D^2u)=0$ in exterior domains. This method does not depend on the $C^2$ regularity of $F$ and the dimension $n$.
arxiv