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Showing 1 to 20 of 417 for “"Brownian"”.
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Kinetics of Brownian Transport
The rate of progress of Brownian processes is not easily quantifiable. An importantmeasure of the ”speed” of Brownian motion is themean first-passage time (FPT) to a given distance. FPTs exist in various flavours including exit- and transition-path times, which, for instance, can be used to …
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Large Scale Simulations of Brownian Suspensions
… is readily extended to include the effects of Brownian motion. For interacting particles, the fluctuation-dissipation theorem requires that the individual Brownian forces satisfy a correlation based on the N body resistance tensor R. The accurate modeling of these forces requires the …
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Brownian motion and multidimensional decision making
… the transition density of absorbed or reflected Brownian motion in a d-dimensional domain as a Feynman-Kac functional involving the Laplacian of the indicator, thereby relating the hitherto unrelated fields of classical potential theory and path integrals. Part II, "The problem of alternatives", …
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Brownian motions on a Riemannian manifold
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1961.
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Brownian Motion on Spaces with Varying Dimension
In this thesis we introduce and study Brownian motion with or without drift on state spaces with varying dimension. Starting with a concrete such state space that is the plane with an infinite pole on it, we construct a Brownian motion on it and derive sharp two-sided global estimates on its …
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Stochastic Theory of Desorption Reactions (Brownian Motion)
A Brownian motion model is used to study the escape of a molecule from a physisorbed state into a dense fluid.
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Brownian motion in a non-equilibrium bath
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1997.
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"Brownian strings": Image segmentation with stochastically deformable models.
"Brownian strings": Image segmentation with stochastically deformable models.
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Fractional Brownian motion and dynamic approach to complexity.
The dynamic approach to fractional Brownian motion (FBM) establishes a link between non-Poisson renewal process with abrupt jumps resetting to zero the system's memory and correlated dynamic processes, whose individual trajectories keep a non-vanishing memory of their past time evolution. It is …
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Robust Biased Brownian Dynamics for Rate Constant Calculation
… probability problem, it is usually solved by Brownian dynamics simulations, which is also known as a random walk or path integral method, instead of solving the equivalent partial differential equation by a discretization method. In this thesis, a robust importance sampling algorithm for …
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A Non-Standard Approach to Brownian Local Time
Made available in DSpace on 2014-12-14T13:09:44Z (GMT). No. of bitstreams: 1 8009129.pdf: 5475012 bytes, checksum: dd01d0cf8640e1df34440035d4865bbe (MD5) Previous issue date: 1979
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Brownian dynamics simulations of fine-scale molecular models
One of the biggest challenges in non-Newtonian fluid mechanics is calculating the polymer contribution to the stress tensor, which is needed to calculate velocity and pressure fields as well as other quantities of interest. In the case of a Newtonian fluid, the stress tensor is linearly …
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On the theory of Brownian aggregation in colloidal dispersions
Brownian aggregation kinetics is a topic of interest for colloidal dispersions, macromolecular fluids, nanoparticle self-assembly, and biochemical reactions. The manipulation of colloidal dispersion stability by containing or promoting aggregation rates is manifest in several natural phenomena and …
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Fast algorithms for Brownian dynamics simulation with hydrodynamic interactions
In the Brownian dynamics simulation with hydrodynamic interactions, one needs to generate the total displacement vectors of Brownian particles consisting of two parts: a deterministic part which is proportional to the product of the Rotne-Prager-Yamakawa (RPY) tensor D [1, 2] and the given external …
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Inequalities for Random Walk and Partially Observed Brownian Motion
… control of the maximal function of N-dimensional Brownian motion, B(,t), by the maximal function of partially observed Brownian motion. Let R denote a fixed open subset of (//R)('N), G an arbitrary open subset, and T the first exit time of the Brownian motion from G. Define the maximal function, …
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Potential theory of subordinate Brownian motions and their perturbations
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-04-09T16:14:28Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Hyunchul_Park.pdf: 539321 bytes, checksum: bcfd0a5064cd6d8ec336a32baba3522b (MD5)
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Gaussian-like von Neumann algebras and noncommutative brownian motion
… and Speicher in connection with noncommutative brownian motion. The main results of the present work is to establish that the $q$-Gaussian von Neumann algebras have the weak* completely contractive approximation property for all $-1 < q < 1$ and any number of generators, and they are strongly …
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Intrinsic Ultracontractivity and Other Properties of Mixed Barrier Brownian Motions
… parts. First, we study an asymptotic behavior of Brownian motions with Dirichlet boundary condition on an unbounded domain D above the graph of a bounded Lipschitz function. We discover that the large time behavior of the Dirichlet heat kernel pD = pD(t , x, y), for x, y ∈ D is …
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Potential Theory for Subordinate Brownian Motion by Tempered Stable Subordinator
… subordinators is defined. By subordinating Brownian motion {Bt : t ≥ 0} with independent tempered stable subordinators {Zt : t ≥ 0}, we can get a class of Levy processes Xt := BZtw (o) in Rd (d ≥ 2). Some well known processes such as symmetric alpha-stable process and relativistic …
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