Results 31 to 40 of about 157 (63)
Super Time‐Resolved Tomography
A super time‐resolved tomography (STRT) approach is presented to reconstruct 4D X‐ray movies with an order‐of‐magnitude improvement in temporal resolution without sacrificing spatial resolution. By leveraging a physics‐informed deep learning algorithm that shares spatiotemporal features, STRT achieves high‐fidelity 3D reconstructions from sparse‐view ...
Zhe Hu +6 more
wiley +1 more source
A noncommutative view on topology and order
In this paper we put forward the definition of particular subsets on a unital C*-algebra, that we call isocones, and which reduce in the commutative case to the set of continuous non-decreasing functions with real values for a partial order relation ...
Ambjorn +14 more
core +3 more sources
Reversal Asymmetry of Reciprocal Metasurface Enables Ultra‐Compact Varifocal Reflective Lens
The possibility of breaking the reversal symmetry of a lens without violating reciprocity is demonstrated. The freedom provided is utilized to realize an ultra‐compact reflective varifocal lens‐doublet based on a flat metasurface lens and a piezoelectric actuated micromirror.
Christopher A. Dirdal +6 more
wiley +1 more source
ABSTRACT Unarguably, malware and their variants have metamorphosed into objects of attack and cyber warfare. These issues have directed research focus to modeling infrastructural settings and infection scenarios, analyzing propagation mechanisms, and conducting studies that highlight optimized remedial measures.
Chukwunonso Henry Nwokoye
wiley +1 more source
The work delivers a rigorous mathematical framework for asymptotic tracking in nonlinear systems that explicitly include control‐input derivatives, actuator dynamics, and input saturation, with Lyapunov‐based proofs establishing convergence and robustness under their coupled effects.
Mohammad Reza Homaeinezhad +5 more
wiley +1 more source
Bridgeland stability conditions and skew lines on $\mathbb{P}^3$
Inspired by Schmidt's work on twisted cubics, we study wall crossings in Bridgeland stability, starting with the Hilbert scheme $\mathrm{Hilb}^{2m+2}(\mathbb{P}^3)$ parametrizing pairs of skew lines and plane conics union a point. We find two walls. Each
Gulbrandsen, Martin G. +1 more
core
The paper proposes a piecewise analytical method for calculating the winding current and the neutral reactor current under oscillatory conditions in renewable energy power systems. The method is based on the operational state of the core magnetic circuit, where the nonlinear magnetisation curve is approximated by piecewise linear segments with the ...
Botong Li +8 more
wiley +1 more source
Spaces of dimension three with congruence [PDF]
It is well known that every Euclidean plane (E, L, α, ≡) is isomorphic to an affine plane AG(2,K) over a Pythagorean ordered commutative field K .There is a corrisponding theorem for hyperbolic panes (cf. [2]).
Kreuzer, Alexander
core +1 more source
ABSTRACT Objective This study demonstrates the impact of alterations in pressure, vascular compliance, arterial pulsatility, and autoregulation on tissue perfusion following middle cerebral artery (MCA) occlusion using mathematical modeling. Methods Our previous mathematical model of the cerebral circulation is expanded to include vessel compliance and
Erin Zhao +5 more
wiley +1 more source
Reluctance network method as analogy to finite element method [PDF]
This study concentrates on reluctance network method implementation. The main goal of the thesis was to study algorithm of reluctance network method and its component parts.
Teryaev, Rostislav
core

