Results 111 to 120 of about 621,406 (163)
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Multiresolution Particle Methods
2007We present novel multiresolution particle methods with extended dynamic adaptivity in areas where increased resolution is required. The inherent Lagrangian adaptivity of smooth particle methods is complemented by adaptation of the particle size based on criteria such as flow strain and wavelet-based decomposition.
Michael Bergdorf, Petros Koumoutsakos
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Moving particle finite element method
International Journal for Numerical Methods in Engineering, 2001AbstractThis paper presents the fundamental concepts behind the moving particle finite element method, which combines salient features of finite element and meshfree methods. The proposed method alleviates certain problems that plague meshfree techniques, such as essential boundary condition enforcement and the use of a separate background mesh to ...
Hao, Su, Park, Harold S., Liu, Wing Kam
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Production methods for viral particles
Biotechnology Letters, 2014Viral particles and virus-like particles (VLPs) or capsids are becoming important vehicles and templates in bio-imaging, drug delivery and materials sciences. Viral particles are prepared by infecting the host organism but VLPs are obtained from cells that express a capsid protein.
Kodai, Machida, Hiroaki, Imataka
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Particle Flow Particle Filter using Gromov's method
2019 IEEE 8th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2019Particle flow filters obtain impressive results in challenging high dimensional, non-linear sequential state estimation problems. In contrast to a particle filter, which uses importance sampling to approximate the posterior distribution of the state, the flow based algorithms solve a differential equation to migrate the particles from the prior to the ...
Soumyasundar Pal, Mark Coates
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A Method for Lamping Atoms into Particles in Particle Dynamic Method
Advanced Materials Research, 2011Generalized particle dynamics method (GP) is a kind of new multi-scale analysis approach which relates various scales naturally through cohering small scale lattice to large-scale lattice. In this paper, a method named nearby condensation method is proposed to lump small scale lattice to large-scale lattice keeping topology structure and mass ...
Jie Wei, Yu Feng Nie, Li Cai
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ON PARTICLE WEIGHTED METHODS AND SMOOTH PARTICLE HYDRODYNAMICS
Mathematical Models and Methods in Applied Sciences, 1999This paper deal with designing of weighted particle approximation of conservation laws. New ideas concerning the use of variable smoothing length, renormalization and the use of Godunov type finite difference fluxes in particle methods are introduced and discussed in connection with standard implementation of the SPH method.
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Particle Tracking and Multispectral Collocation Method for Particle-to-Particle Binding Assays
Analytical Chemistry, 2013We present a simple-to-implement method for analyzing images of randomly distributed particles transported through a fluidic channel. We term this method particle imaging, tracking and collocation (PITC). Our method uses off-the-shelf optics including a CCD camera, epifluorescence microscope, and a dual-view color separator to image freely suspended ...
Anita, Rogacs, Juan G, Santiago
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2011
The rheology of granular materials is largely dominated by geometrical constraints arising from steric exclusions and involving particle shapes and size distributions. This prevailing role of geometry permits one to simplify sometimes the dynamics in favor of a better description of the geometry or/and higher numerical efficiency.
Voivret, Charles +2 more
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The rheology of granular materials is largely dominated by geometrical constraints arising from steric exclusions and involving particle shapes and size distributions. This prevailing role of geometry permits one to simplify sometimes the dynamics in favor of a better description of the geometry or/and higher numerical efficiency.
Voivret, Charles +2 more
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The virtual particle electromagnetic particle-mesh method
Computer Physics Communications, 1991Abstract New types of current conserving particle-mesh algorithms for solving the coupled relativistic Vlasov-Maxwell set of equations are presented. They are derived using finite elements in both space and time. These new numerical schemes offer considerable advantages over the currently used finite difference PIC methods. They are charge and energy
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