Results 191 to 200 of about 9,802,344 (402)

On regularity of weak solutions to boundary value problems for quasilinear elliptic differential equations of higher order [PDF]

, 1975
Manfred Müller, Jindřich Nečas
openalex   +1 more source

From 2D to 3D gamma passing rate tolerance and action limits for patient‐specific quality assurance in volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Volumetric modulated arc therapy (VMAT) requires an accurate patient‐specific quality assurance (PSQA) program. In clinical practice, this is usually performed using the γ‐index and the two‐dimensional gamma passing rate (2D %GP). A three‐dimensional (3D) index incorporating the patient anatomy could be more useful for the 3D dose ...
Christos Zarros, George Patatoukas, Nikos Kollaros, Marina Chalkia, Andromachi Kougioumtzopoulou, Vasilios Kouloulias, Kalliopi Platoni   +6 more
wiley   +1 more source

Qualitative analysis of solutions for a degenerate partial differential equations model of epidemic spread dynamics

Frontiers in Applied Mathematics and Statistics
Compartmental models are widely used in mathematical epidemiology to describe the dynamics of infectious diseases or in mathematical models of population genetics.
Roman Taranets, Nataliya Vasylyeva, Nataliya Vasylyeva, Nataliya Vasylyeva, Belgacem Al-Azem   +4 more
doaj   +1 more source

Existence of weak solutions of stochastic delay differential systems with Schrödinger-Brownian motions. [PDF]

J Inequal Appl, 2018
Sun J, Kou L, Guo G, Zhao G, Wang Y.
europepmc   +1 more source

A glass electrode potentiometer system for the determination of the pH values of weakly buffered solutions such as natural and treated waters

, 1934
J. O. Burton, Harry Matheson, S. F. Acree   +2 more
openalex   +1 more source

Maximum principles, gradient estimates, and weak solutions for second-order partial differential equations [PDF]

, 1978
W. I. Bertiger
openalex   +1 more source

Uniqueness of weak solutions of the Plateau flow

Calculus of Variations and Partial Differential Equations
AbstractIn this paper, we study the uniqueness of weak solutions of the heat flow of half-harmonic maps, which was first introduced by Wettstein as a half-Laplacian heat flow and recently studied by Struwe using more classical techniques. On top of its similarity with the two dimensional harmonic map flow, this geometric gradient flow is of interest ...
openaire   +3 more sources

A review of artificial intelligence in brachytherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Artificial intelligence (AI) has the potential to revolutionize brachytherapy's clinical workflow. This review comprehensively examines the application of AI, focusing on machine learning and deep learning, in various aspects of brachytherapy.
Jingchu Chen, Richard L. J. Qiu, Tonghe Wang, Shadab Momin, Xiaofeng Yang   +4 more
wiley   +1 more source

Non-linear biphasic mixture model: Existence and uniqueness results

European Journal of Applied Mathematics
This paper is concerned with the development and analysis of a mathematical model that is motivated by interstitial hydrodynamics and tissue deformation mechanics (poro-elasto-hydrodynamics) within an in-vitro solid tumour.
Meraj Alam, Adrian Muntean, Raja Sekhar G P   +2 more
doaj   +1 more source

Uniqueness of semi-concave weak solutions for Hamilton-Jacobi equations [PDF]

arXiv
It is well known that when the nonlinearity is convex, the Hamilton-Jacobi PDE admits a unique semi-convex weak solution, which is the viscosity solution. In this paper, motivated by problems arising from spin glasses, we show that if the Hamilton-Jacobi PDE with strictly convex nonlinearity and regular enough initial condition admits a semi-concave ...
arxiv