Results 91 to 100 of about 224,966 (246)

Dimer models and conformal structures

Communications on Pure and Applied Mathematics, EarlyView.
Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala, Erik Duse, István Prause, Xiao Zhong   +3 more
wiley   +1 more source

Computational Topology: An Introduction

, 2009
Herbert Edelsbrunner, J. Harer
semanticscholar   +1 more source

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

Solvent Effects on the Selectivity of Ambimodal Dipolar/Diels–Alder Cycloadditions: A Study Using Explicit Solvation Models

ChemPhysChem, EarlyView.
Post‐transition state bifurcation in the reaction of 2‐aminoacrolein with 1,3‐butadiene is investigated using explicit solvation (up to 45 water molecules). GFN2‐xTB dynamics reveal strong solvent‐size effects on branching to (4 + 2) and (4 + 3) cycloadducts via an ambimodal transition state.
Hayato Matsubuchi, Daiki Hayashi, Daichi Okamoto, Aoi Noguchi, Shoto Nakagawa, Toshiyuki Takayanagi, Tatsuhiro Murakami   +6 more
wiley   +1 more source

Initial Population Sampling Influence on Multi‐Objective Optimization Based on Differential Evolution and Bayesian Inference

International Journal of Circuit Theory and Applications, EarlyView.
This study focused on reducing the simulation counts required for circuit sizing by optimizing the initial population selection in evolutionary algorithms. We investigated the impact of different sampling methods on the efficiency of multi‐objective optimization based on differential evolution and Bayesian inference, a leading algorithm in circuit ...
Georgian Nicolae, Catalin Visan, Dan Curavale, Mihai Boldeanu, Horia Cucu, Andi Buzo   +5 more
wiley   +1 more source

On the Method of Harmonic Balance for Lumped‐Element Transformer Models

International Journal of Circuit Theory and Applications, EarlyView.
The steady‐state solution of a lumped‐element transformer model with a dry friction‐like hysteresis model depicting the magnetic core is of interest. The harmonic balance method efficiently solves this stiff system. We derive the harmonic balance algorithm, enhance it with performance and convergence improvements, and demonstrate its efficiency by ...
Alexander Sauseng, Alice Reinbacher‐Köstinger, Dennis Albert, Peter Hamberger, Manfred Kaltenbacher, Klaus Roppert   +5 more
wiley   +1 more source

Influence of Nanoparticles on Dielectric Properties of High‐Voltage Epoxy‐Based Nanocomposite Insulators: Simulation and Experimental Analysis

Energy Science &Engineering, EarlyView.
ABSTRACT There is a need to develop an improved insulating material that surpasses traditional insulators in terms of insulation and efficient operation under extreme weather conditions. Epoxy nanocomposites (NCs) have gained considerable attention due to their intrinsic material properties.
Abubakar Siddique, Muhammad Masood Khan, Waseem Aslam, Muhammad Usama Shahid, Khaled Saleem S. Alatawi, Mohammad R. Altimania, Ievgen Zaitsev, Hafiz Mudassir Munir   +7 more
wiley   +1 more source

A Geometric Multigrid Solver for the Incompressible Navier–Stokes Equations Using Discretely Divergence‐Free Finite Elements in 3D

International Journal for Numerical Methods in Fluids, EarlyView.
In this paper, we consider the concept of discretely divergence‐free finite elements (DDFFE) based on the Rannacher–Turek finite element pair to efficiently solve the three‐dimensional incompressible Navier–Stokes equations. For this purpose, we first define a spanning set of DDFFE functions and then characterize a set of basis functions for arbitrary ...
Christoph Lohmann
wiley   +1 more source

Machine learning predictions from unpredictable chaos. [PDF]

J R Soc Interface
Jiang J, Chen L, Ke L, Dou B, Zhu Y, Shi Y, Qiu H, Zhang BG, Zhou T, Wei GW.   +9 more
europepmc   +1 more source

Foundations of Computational Mathematics, Hong Kong 2008: Linear and Nonlinear Subdivision Schemes in Geometric Modeling

, 2009
N. Dyn
semanticscholar   +1 more source