Results 171 to 180 of about 24,798 (283)

Use of proper orthogonal decomposition and machine learning for efficient blood flow prediction in cerebral saccular aneurysms. [PDF]

Sci Rep
Rajhi W, Ahmed Z, Ali ABM, Alizadeh A, Hussein ZA, Sawaran Singh NS, Louhichi B, Aich W.   +7 more
europepmc   +1 more source

Maximally dissipative and self‐adjoint extensions of K$K$‐invariant operators

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We introduce the notion of K$K$‐invariant operators, S$S$, in a Hilbert space, with respect to a bounded and boundedly invertible operator K$K$ defined via K∗SK=S$K^*SK=S$. Conditions such that self‐adjoint and maximally dissipative extensions of K$K$‐invariant symmetric operators are also K$K$‐invariant are investigated.
Christoph Fischbacher, Bart Rosenzweig, Jonathan Stanfill   +2 more
wiley   +1 more source

Oscillatory Dynamics and Energy Transport in Twisted Magnetic Flux Tubes of the Solar Photosphere. [PDF]

Sol Phys
Alanezy AS, Silva SSA, Ballai I, Verth G, Fedun V.   +4 more
europepmc   +1 more source

Lorentzian homogeneous structures with indecomposable holonomy

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract For a Lorentzian homogeneous space, we study how algebraic conditions on the isotropy group affect the geometry and curvature of the homogeneous space. More specifically, we prove that a Lorentzian locally homogeneous space is locally isometric to a plane wave if it admits an Ambrose–Singer connection with indecomposable, non‐irreducible ...
Steven Greenwood, Thomas Leistner
wiley   +1 more source

Data-driven non-intrusive reduced order modelling of selective laser melting additive manufacturing process using proper orthogonal decomposition and convolutional autoencoder. [PDF]

Adv Model Simul Eng Sci
Chaudhry S, Abdedou A, Soulaïmani A.
europepmc   +1 more source

Synthesis and Magnetism of Co 2 III $_{2}^{III}$ Co 5 II $_{5}^{II}$ and Co 2 III $_{2}^{III}$ Co 6 II $_{6}^{II}$ Complexes, and the Role of the Free Choice of Local Coordinate Frames for Interpreting Magnetic Parameters

European Journal of Inorganic Chemistry, Volume 29, Issue 12, 24 April 2026.
In order to rationalise the magnetic properties of a newly synthesised Co2III$_{2}^{III}$Co6II$_{6}^{II}$ coordination cluster it was found essential to exploit the freedom to choose the local coordinate frames for describing the high‐spin CoII centres.
Joscha Nehrkorn, Sven Pfirrmann, Yanhua Lan, Christopher E. Anson, Annie K. Powell, Oliver Waldmann   +5 more
wiley   +1 more source

Optimization of Sparse Sensor Layouts and Data-Driven Reconstruction Methods for Steady-State and Transient Thermal Field Inverse Problems. [PDF]

Sensors (Basel)
Yuan Q, Yao P, Zhao W, Zhang B.
europepmc   +1 more source

Physics-driven proper orthogonal decomposition: A simulation methodology for partial differential equations. [PDF]

MethodsX, 2023
Pulimeno A, Coates-Farley G, Veresko M, Jiang L, Cheng MC, Liu Y, Hou D.   +6 more
europepmc   +1 more source

Numerical Model Reduction of Multi‐Scale Electrochemical Ion Transport

International Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT In this paper, we develop a Numerical Model Reduction (NMR) framework for multi‐scale modeling of electro‐chemically coupled ion transport. Upon introducing the governing equations and employing Variationally Consistent Homogenization, a two‐scale model, consisting of a macro‐scale and a sub‐scale part, is obtained.
Vinh Tu, Fredrik Larsson, Kenneth Runesson, Ralf Jänicke   +3 more
wiley   +1 more source

Exploratory application of DMD for particle deposition and fluid field in the respiratory tract. [PDF]

J Aerosol Sci
Graffigna MS, Bartol IR, Tano ME, Dewji SA.   +3 more
europepmc   +1 more source