Results 81 to 90 of about 36,394 (307)

Kompetitive Bildkompression mit linearen PDEs [PDF]

, 2016
In recent years, image compression methods with partial differential equations (PDEs) have become a promising alternative to standard methods like JPEG or JPEG2000.
Hoffmann, Sebastian
core   +1 more source

“It Is Much Safer to Be Sparse than Connected”: Safe Control of Robotic Swarm Density Dynamics with PDE Optimization with State Constraints

Advanced Intelligent Systems, EarlyView.
This paper proposes a novel control framework to ensure safety of a robotic swarm. A feedback optimization controller is capable of driving the swarm toward a target density while keeping risk‐zone exposure below a safety threshold. Theory and experiments show how safety is more effectively achieved for sparsely connected swarms.
Longchen Niu, Gennaro Notomista
wiley   +1 more source

Least Squares Approximation of Flatness on Riemannian Manifolds

Mathematics, 2020
The purpose of this paper is fourfold: (i) to introduce and study the Euler–Lagrange prolongations of flatness PDEs solutions (best approximation of flatness) via associated least squares Lagrangian densities and integral functionals on Riemannian ...
Iulia Hirica, Constantin Udriste, Gabriel Pripoae, Ionel Tevy   +3 more
doaj   +1 more source

Phosphodiesterase and psychiatric disorders: a two-sample Mendelian randomization study

Journal of Translational Medicine, 2023
Background Phosphodiesterases (PDEs) have been associated with psychiatric disorders in observational studies; however, the causality of associations remains unestablished.
Miaomiao Jiang, Weiheng Yan, Yuyanan Zhang, Zhe Lu, Tianlan Lu, Dai Zhang, Jun Li, Lifang Wang   +7 more
doaj   +1 more source

A comparative study of a system of Lotka-Voltera type of PDEs through perturbation methods [PDF]

, 2013
In this paper the Adomian Decomposition Method (ADM) is employed in order to solve linear and nonlinear functional equations and the results are then compared with those produced by Homotopy Perturbation Method (HPM) through a system of Lotka Voltera ...
H. A. Waha, T. Khan, et al., M. Shakil
core  

A Cartesian-grid collocation method based on radial-basis-function networks for solving PDEs in irregular domains [PDF]

, 2007
[Abstract]: This paper reports a new Cartesian-grid collocation method based on radial-basis-function networks (RBFNs) for numerically solving elliptic partial differential equations (PDEs) in irregular domains.
Mai-Duy, Nam, Tran-Cong, Thanh
core   +1 more source

Disentangling Aleatoric and Epistemic Uncertainty in Physics‐Informed Neural Networks: Application to Insulation Material Degradation Prognostics

Advanced Intelligent Systems, EarlyView.
Physics‐Informed Neural Networks (PINNs) provide a framework for integrating physical laws with data. However, their application to Prognostics and Health Management (PHM) remains constrained by the limited uncertainty quantification (UQ) capabilities.
Ibai Ramirez, Jokin Alcibar, Joel Pino, Mikel Sanz, Jose I. Aizpurua   +4 more
wiley   +1 more source

Analysing detection of chronic diseases with prolonged sub-clinical periods: modelling and application to hypertension in the U.S.

BMC Medical Research Methodology, 2019
Background We recently introduced a system of partial differential equations (PDEs) to model the prevalence of chronic diseases with a possibly prolonged state of asymptomatic, undiagnosed disease preceding a diagnosis.
Ralph Brinks, Sophie Kaufmann, Annika Hoyer, Edward W Gregg, Jürgen Saal   +4 more
doaj   +1 more source

Radiation‐Absorptive Heat Transport in Buoyancy‐Driven MHD Nanofluids Flow With Cross‐Diffusion and Chemical Interaction Effects Over a Vertical Moving Plate

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This article investigates the Soret–Dufour cross‐diffusion effects on radiation‐absorptive unsteady free‐convection of magnetized nanofluids (TiO2–water$$ {\mathrm{TiO}}_2\hbox{--} \mathrm{water} $$ and Cu–water$$ \mathrm{Cu}\hbox{--} \mathrm{water} $$) flow over a vertical moving permeable plate.
B. Prabhakar Reddy, Jumanne Mng'ang'a, P. V. Kanaka Rao   +2 more
wiley   +1 more source

Platform-Dependent Entrepreneurship: A Systematic Review

Administrative Sciences
Digital platforms have facilitated the emergence of novel entrepreneurial opportunities that rely on a platform for market entry and access to resources.
Songping Yu, Tomoki Sekiguchi
doaj   +1 more source