Results 161 to 170 of about 247,001 (308)

Shape Derivatives of the Eigenvalues of the De Rham Complex for Lipschitz Deformations and Variable Coefficients: Part I

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We study eigenvalue problems for the de Rham complex on varying three‐dimensional domains. Our analysis includes the Helmholtz equation as well as the Maxwell system with mixed boundary conditions and non‐constant coefficients. We provide Hadamard‐type formulas for the shape derivatives under weak regularity assumptions on the domain and its ...
Pier Domenico Lamberti, Dirk Pauly, Michele Zaccaron   +2 more
wiley   +1 more source

Existence Analysis of a Three‐Species Memristor Drift‐Diffusion System Coupled to Electric Networks

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT The existence of global weak solutions to a partial‐differential‐algebraic system is proved. The system consists of the drift‐diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson equation for the electric potential, and the differential‐algebraic equations for an electric network.
Ansgar Jüngel, Tuấn Tùng Nguyến
wiley   +1 more source

Anwendung der Proper Generalized Decomposition auf strukturmechanische Problemstellungen

, 2019
Mechanical simulations are getting increasingly demanding. The models have to be more accurate and get more complex. This causes that the calculation needs more time. One possibility to reduce the complexity of a problem is using model reduction methods.
openaire   +1 more source

Conditional Generative Modeling for Enhanced Credit Risk Management in Supply Chain Finance

Naval Research Logistics (NRL), EarlyView.
ABSTRACT The rapid expansion of cross‐border e‐commerce (CBEC) has created significant opportunities for small‐ and medium‐sized sellers, yet financing remains a critical challenge due to their limited credit histories. Third‐party logistics (3PL)‐led supply chain finance (SCF) has emerged as a promising solution, leveraging in‐transit inventory as ...
Qingkai Zhang, L. Jeff Hong, Houmin Yan
wiley   +1 more source

The Weak Core, Partition‐Based Universal Stability, and Their Risk Associations Through A Partial Order

Naval Research Logistics (NRL), EarlyView.
ABSTRACT We are concerned with the stability of a transferable‐utility cooperative (TU) game. First, the concept of core can be weakened so that the blocking of changes is limited to only those with multilateral backings. This principle of consensual blocking, as well as the traditional core‐defining one of unilateral blocking and one straddling in ...
Jian Yang
wiley   +1 more source

What Is a Polyolefin? A Critical Overview of Ethylene Copolymers Used as Solar Photovoltaic Module Encapsulants

Progress in Photovoltaics: Research and Applications, EarlyView.
Polyolefin encapsulants are gaining dominance in PV modules, yet confusion persists around PO, POE, and TPO definitions. This study clarifies terminology, reviews materials, and properties and proposes a taxonomy to improve understanding, communication, and reliability in solar module manufacturing.
Gernot Oreski, Chiara Barretta, Petra Christöfl, Paul Gebhardt, Karl‐Anders Weiß, David C. Miller, Soňa Uličná, Michael Kempe, Laura S. Bruckman, Alessandro Virtuani, Hengyu Li, Brian Habersberger, Jeff Munro, Kristof Proost, Marcel Kühne   +14 more
wiley   +1 more source

Proper Generalized Decomposition for non Convex semilinear problems

, 2015
In this work, Proper Generalized Decomposition (PGD) is studied for a class of non-convex semilinear elliptic problems. Using the Nehari manifold, we show how to recover the weak semi-continuity property of the associated energy and get a well-defined PGD sequence. The convergence of such a PGD sequence is studied under suitable hypotheses.
openaire   +1 more source

Proper generalized decomposition (PGD) to solve mixed convection problem

, 2011
In this communication, the Proper Generalized Decomposition method (PGD), which is an a priori reduction model method, consisting in searching a solution of EDP in separated form, will be applied to solve non-isothermal Navier-Stokes equations.
Dumon, A., Allery, C., Ammar, A.
openaire   +1 more source

Reduced‐Order Modeling of Energetic Materials Using Physics‐Aware Recurrent Convolutional Neural Networks in a Latent Space (LatentPARC)

Propellants, Explosives, Pyrotechnics, EarlyView.
Physics‐Aware Recurrent Convolutional Neural Networks (PARC) can reliably learn the thermomechanics of energetic materials as a function of morphology. This work introduces LatentPARC, which accelerates PARC by modeling the dynamics in a low‐dimensional latent space.
Zoë J. Gray, Joseph B. Choi, Youngsoo Choi, H. Keo Springer, H. S. Udaykumar, Stephen S. Baek   +5 more
wiley   +1 more source

A proper generalized decomposition approach for high-order problems

, 2015
In this paper two different approximations for the solution of high-order problems by proper generalized decompositions (PGD) are developed. The first one is based upon the use of collocation techniques, along with Chebyshev polynomials, while the second employs Hermite polynomials in a Galerkin framework. Both approaches having pros and cons, they are
Quesada, C., Xu, G., González, D., Alfaro, I., Leygue, A., Visonneau, M., Cueto, E., Chinesta, F.   +7 more
openaire   +1 more source