Results 51 to 60 of about 3,594,748 (179)
Particle-Particle Particle-Tree: A Direct-Tree Hybrid Scheme for Collisional N-Body Simulations [PDF]
, 2011 In this paper, we present a new hybrid algorithm for the time integration of collisional N-body systems. In this algorithm, gravitational force between two particles is divided into short-range and long-range terms, using a distance-dependent cutoff ...
Funato, Yoko +2 more
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Particle creation and particle number in an expanding universe
, 2012 I describe the logical basis of the method that I developed in 1962 and 1963 to define a quantum operator corresponding to the observable particle number of a quantized free scalar field in a spatially-flat isotropically expanding (and/or contracting ...
Parker, Leonard
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Correlated two-particle scattering on finite cavities
, 2005 The correlated two-particle problem is solved analytically in the presence of a finite cavity. The method is demonstrated here in terms of exactly solvable models for both the cavity as well as the two-particle correlation where the two-particle ...
A. Ficker +10 more
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$K^+_{l3\gamma}$ decays revisited: branching ratios and T-odd momenta correlations
, 2010 We calculate the branching ratios of the $K^+ \to \pi^0 l^+ \nu_l\gamma (l = e, \mu)$ decays, and the T-odd triple momenta correlations $\xi=\vec{q}\cdot[\vec{p}_l \times \vec{p}_\pi]/M^3_K$, due to the electromagnetic final state interaction, in these ...
A. S. Rudenko +10 more
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Convergence study and optimal weight functions of an explicit particle method for the incompressible Navier--Stokes equations [PDF]
, 2019 To increase the reliability of simulations by particle methods for incompressible viscous flow problems, convergence studies and improvements of accuracy are considered for a fully explicit particle method for incompressible Navier--Stokes equations. The
Imoto, Y., Nishiura, D., Tsuzuki, S.
core +2 more sources
Microplastics in urban water management
Technical Transactions, 2017 The paper is discussing microplastics in the effluent of wastewater treatment plants and other discharges from urban areas. The aim of the discussion is to expose the challenges related to sampling and detecting plastic particles in treated wastewater ...
Venghaus Daniel, Barjenbruch Matthias
doaj +1 more source
, 2011 Particle IDentification (PID) is fundamental to particle physics experiments. This paper reviews PID strategies and methods used by the large LHC experiments, which provide outstanding examples of the state-of-the-art.
Lippmann, Christian
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The iterated auxiliary particle filter [PDF]
, 2016 We present an offline, iterated particle filter to facilitate statistical inference in general state space hidden Markov models. Given a model and a sequence of observations, the associated marginal likelihood L is central to likelihood-based inference ...
Guarniero, Pieralberto +2 more
core +4 more sources
Determination of substrate log-normal distribution in the AZ91/SICP composite
Metalurgija, 2015 The aim in this work is to develop a log-normal distribution of heterogeneous nucleation substrates for the composite based on AZ91 alloy reinforced by SiC particles.
J. Lelito +7 more
doaj
Intra-Annual Patterns in the Benthic-Pelagic Fluxes of Dissolved and Particulate Matter
Frontiers in Marine Science, 2020 In coastal temperate environments, many processes known to affect the exchange of particulate and dissolved matter between the seafloor and the water column follow cyclical patterns of intra-annual variation. This study assesses the extent to which these
Saskia Rühl +4 more
doaj +1 more source