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Showing 1 to 20 of 8154 for “"Particle"”.
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Particle detector optimization via particle flow algorithms
Using the the SLIC simulator software and the org.lcsim reconstruction framework package, the performance of Mat Charles' NonTrivialPfa.java PFA for several different detector variations was found by determining the mass resolution for a given detector geometry. The variations tested included the …
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Analysis of coulomb interaction using modified particle-particle-particle-mesh method in Monte Carlo simulation
We introduce a particle{particle{particle{mesh (P3M) method modi ed by a simple yet accurate numerical reference force, which solves the ambiguity of the original P3M method by e ectively eliminating double-counting of pair forces inside the short range. The substantial advantages over the original …
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Aerosol Filtration -- Agglomerate Particle Filtration and Particle Deposition Uniformity
<p>Particle control technologies are essential in many manufacturing industries (electronic and chemical industrial, mineral processing, and food and beverages) as well as in pollution abatement and environmental control (for example, post processing of power plant emissions and clean rooms). A …
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Algorithms for particle remeshing applied to smoothed particle hydrodynamics
This thesis outlines adaptivity schemes for particle-based methods for the simulation of nearly incompressible fluid flows. As with the remeshing schemes used in mesh and grid-based methods, there is a need to use localized refinement in particle methods to reduce computational costs. Various forms …
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Membrane permeation from solutions, particle dispersions and particle-stabilised emulsions
… whereby the preparation of waterless, particle-stabilised emulsions is reported upon. The prepared emulsions incorporate a non-aqueous polar liquid phase, an immiscible oil phase and are stabilised by solid nanoparticles. Variation of the incorporated oil, polar liquid and particle …
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Smoothed particle hydrodynamics
… Lucy [11] and Gingold and Monaghan [4], smoothed particle hydrodynamics (SPH) has been used in many areas. It has grown into a widely-recognized technique with many practical applications. In this thesis, we present a new application of the SPH method: a new algorithm for computing a null …
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Particle Thompson sampling
… maintaining a continuous posterior distribution. Particle Thompson sampling (PTS) is an approximation of Thompson sampling based on the simple idea of replacing the continuous distribution by a discrete distribution supported at a set of particles. It is very flexible and easy to implement. This …
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Examination of Fluid-Particle in Turbulent, Non-Dilute, Particle Suspension Flow
Theoretical modeling and experimental studies of particles suspended in fully developed turbulent water flow in a vertical pipe (I.D. = 18.4 cm) have been conducted. An analytical model has been developed to predict the stochastic motion of particles in a non-dilute turbulent suspension flow. The …
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Particle ejection system : target particle recovery using a transient water jet
… advanced, the mechanical ejection or removal of particles is fairly underdeveloped. Agriculture and mining applications have used air jets and water jets to eject particles ranging in weight from a few grams to several hundred. With the current trends in mechanization leading towards higher …
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Laser plasma particle velocities
Experiments were performed on laser produced plasma from aluminum target discs in a vacuum chamber at pressures a few times 10(-6) torr. Plasma analysis was achieved using a floating double electrostatic probe of tungsten wires biased at -15 volts DC. In analyzing 376 oscilloscope trace pictures of …
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Particle Ellipses in Japanese
In this study I consider two kinds of particle ellipsis, syntactic particle ellipsis and conversational particle ellipsis. Syntactic particle ellipsis (discussed in Chapter 1) is the type of particle ellipsis caused by certain syntactic conditions. Only case particles are ellipted under these …
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Designing Particle Tracking Software for a Theoretical Understanding of Magnetic Janus Particle Aggregation
<p>Magnetic Janus particles are spherical colloids covered with a thin magnetic cap on one half of their surface. The asymmetric magnetic material gives the particles a magnetic dipole shifted away from the center of mass of the particle. The magnetic dipole either points perpendicular …
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Particle dispersion in isotropic turbulence and unsteady particle dynamics at finite Reynolds number
A solution to particle dispersion in an isotropic turbulence under Stokes drag, Basset force and gravitational force is obtained in closed form using the independence approximation. The Basset force has no effect on the fluid velocity structure seen by the particles or the long-time particle …
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An investigation of particle collection efficiency in different particle-bubble contacting environments in flotation
The collection efficiency of quartz particles in four different particle-bubble contacting environments was investigated during this thesis. Flotation experiments were carried out in a hybrid flotation column that could be modified into three different cell configurations (a quiescent column cell, …
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Discrete particle transport in porous media : discrete observations of physical mechanisms influencing particle behavior
An understanding of how discrete particles in the micron to submicron range behave in porous media is important to a number of environmental problems. Discrete particle behavior in the interior of a porous medium is complex and influenced by various physical and chemical factors. This work aimed to …
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Evaluation of a Particle Sampling Probe to Measure Mass Concentration in Particle-Laden Flows
Particle ingestion is a prevalent issue for jet engines. During operation, sand and ash particles enter the engine and can cause serious problems, including erosion and buildup of Calcia-Magnesia-Alumina-Silicate (CMAS) deposits. Analyzing the particle mass concentration of the airflow can help …
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