Results 61 to 70 of about 1,795 (184)

An overview of fast multipole methods [PDF]

open access: yes, 1995
A number of physics problems may be cast in terms of Hilbert-Schmidt integral equations. In many cases, the integrals tend to be zero over a large portion of the domain of interest. All of the information is contained in compact regions of the domain which renders their use very attractive from the standpoint of efficient numerical computation ...
Strickland, J.H., Baty, R.S.
openaire   +2 more sources

Discovery of a cryptic aminoacidic triad involved in the temperature adaptation of GH1 enzymes

open access: yesThe FEBS Journal, EarlyView.
Cold‐active enzymes retain high catalytic activity at low temperatures but are characterized by thermal instability, a behavior not fully understood. Comparison between a cold‐active GH1 and its mesophilic counterparts highlights the role of a three‐residue motif (W‐M‐F) in conferring structural stability to a mesophilic GH1.
Stefania Digiovanni   +5 more
wiley   +1 more source

Combining the multilevel fast multipole method with the uniform geometrical theory of diffraction [PDF]

open access: yesAdvances in Radio Science, 2005
The presence of arbitrarily shaped and electrically large objects in the same environment leads to hybridization of the Method of Moments (MoM) with the Uniform Geometrical Theory of Diffraction (UTD).
A. Tzoulis, T. F. Eibert
doaj  

Methionine Regulates Antitumour Function of CD8+ T Cells Through Polyamine Synthesis

open access: yesImmunology, EarlyView.
Methionine restriction in vitro enhances CD8+ T cell effector function by suppressing polyamine synthesis and progressively induces the co‐expression of PD‐1 and TIM‐3. Consistently, sustained dietary methionine restriction diminishes the efficacy of adoptive T cell therapy (ACT) and promotes the expression of terminal exhaustion‐associated markers ...
Tian Zhao   +16 more
wiley   +1 more source

A Cubed Sphere Fast Multipole Method

open access: yesCoRR
This work describes a new version of the Fast Multipole Method for summing pairwise particle interactions that arise from discretizing integral transforms and convolutions on the sphere. The kernel approximations use barycentric Lagrange interpolation on a quadtree composed of cubed sphere grid cells.
Anthony Chen, Robert Krasny
openaire   +2 more sources

Implementation of fast algorithms for 2D flow simulation using vortex particle methods

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
Vortex particle methods of computational hydrodynamics are widely employed by engineers to solve the problems of flow simulation and estimation of unsteady hydrodynamic loads acting on bodies.
E. P. Ryatina   +3 more
doaj   +1 more source

Convergence of highly parallel stray field calculation using the fast multipole method on irregular meshes

open access: yesAIP Advances, 2018
Fast stray field calculation is commonly considered of great importance for micromagnetic simulations, since it is the most time consuming part of the simulation.
P. Palmesi   +3 more
doaj   +1 more source

Vortical Differential Scattering of Spatio‐Temporal Optical Vortex With Arbitrarily Oriented Orbital Angular Momentum by Chiral Spherical Particle

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
The vortical differential scattering of spatiotemporal optical vortices by chiral particles is investigated. It is revealed that a longitudinal orbital angular momentum component is essential for inducing vortical dichroism, whereas a purely transverse OAM yields no chiral response.
Yiyu Shi   +4 more
wiley   +1 more source

Generalized fast multipole method

open access: yesIOP Conference Series: Materials Science and Engineering, 2010
The fast multipole method (FMM) is a technique allowing the fast calculation of long-range interactions between N points in O(N) or O(N ln N) steps with some prescribed error tolerance. The FMM has found many applications in the field of integral equations and boundary element methods, in particular by accelerating the solution of dense linear systems ...
Pierre-David Létourneau   +2 more
openaire   +1 more source

Stress analysis of linear elastic structures by the fast multipole boundary element method

open access: yesComputer Assisted Methods in Engineering and Science, 2017
In this paper a fast multipole boundary element method (FMBEM) analysis of internal stress in twodimensional linear elastic structures is presented.
Jacek Ptaszny, Piotr Fedeliński
doaj  

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