Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"particle system"”.
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An Interacting Particle System for Collective Migration
… und können in verschiedenen biologischen Systemen beobachtet werden, beispielsweise in Vogel-und Fischschwärmen oder Bakterienpopulationen. Im Zentrum dieser Arbeit steht ein räumlich diskretes und zeitlich stetiges Model, welches das kollektive Migrieren von Individuen mittels eines …
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Preparation of a self-contained NADH co-factor recycling particle system
… and co-factors have been developed. These systems are of interest as they offer the advantages of recycling the enzymes together with the co-factor, thereby enabling re-use. The immobilisation of enzymes also provides a platform for improving their stability, activity, specificity and …
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Self-assembling polymeric nanoparticles for enhanced intra-articular anti-inflammatory protein delivery
… work is that a controlled release/presentation system will more effectively deliver anti-inflammatory protein therapies to the OA joint. The primary goal of this work was to synthesize a block copolymer that could self-assemble into injectable, sub-micron-scale particles and would allow an …
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Optical Binding Phenomena: Observations and Mechanisms
… the optical binding of optically-trapped micro-particles are presented. A sophisticated Mie scattering model is developed, capable of performing time-evolution simulations of a multi-particle system. This is used to analyse and interpret experimental results in evanescent and Gaussian beam …
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Kac's process and some probabilistic aspects of the Boltzmann equation
We consider a family of stochastic interacting particle systems introduced by Kac as a model for a spatially homogeneous gas undergoing elastic collisions, corresponding to the spatially homogeneous Boltzmann equation. We consider Kac's problem of showing propagation of chaos - that if the …
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Gaussian loop- and Pólya processes : a point process approach
… loops, which represents a noninteracting particle system derived from the discussion of indistinguishable particles. Both processes are used to define particle systems locally, for which thermodynamic limits are determined.
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The Transition Probability of the Inhomogeneous q-TAZRP
… of the q-TAZRP, a special form of the n-particle totally asymmetric zero-range process (TAZRP) on the lattice Z defined by Sasamoto and Wadati in [J. Phys. A, vol. 31 6057--6071 (1998)]. We generalise the result by Korhonen and Lee in [J. Math. Phys., vol. 55, 013301 (2014)] to allow the …
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Microscopic Chaos, Fractals, and Transport in Nonequilibrium Steady States. - (Die Veröffentlichung einer ergänzten und überarbeiteten Version bei "World Scientific Publishing" ist für 2005/06 geplant.)
… chaos in the equations of motion of a many-particle system. In this thesis we summarize recent theoretical advances along these lines. We focus on two different approaches to nonequilibrium transport: One considers Hamiltonian dynamical systems under nonequilibrium boundary conditions, …
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Applied stochastic Eigen-analysis
… the sample covariance matrix as an interacting particle system, the existence of a phase transition phenomenon in the largest ("signal") eigenvalue is derived using heuristic arguments. This exposes a fundamental limit on the identifiability of low-level signals due to sample size constraints …
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Modelling in chimica computazionale: ottimizzazione di codici MD ed applicazioni allo studio di sistemi ad elevata carica
… applied for studying some selected high charged particle system: DNA oligomers and ionic liquids. For oligomers, interactions between DNA and counterions has been investigated, searching for sequence dependent features. For ionic liquids, we focused on 1-decyl-3-methil-imidazolium chloride, to …
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Discrete Variable Representation Of The Angular Variables In Quantum Three-Body Scattering
… the quantum mechanical three-body scattering system using the Schrodinger equation. Traditionally, a partial-wave decomposition of the total wave function is carried out first, allowing the scattering system to be solved one partial wave at a time. This is convenient when the interaction is …
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Directed-polymer systems explored via their quantum analogs
… quantum dynamics of a quantum many-particle system in D spatial dimensions, with polymer con gurations corresponding to particle world-lines. This equivalence motivates the application of techniques originally designed for one-dimensional many-particle quantum systems to the …
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Preparation and applications of catalytic magnetic nanoparticles
… including OP pesticides in groundwater system and chemical nerve agents on the battle field. Homogeneous or micellar decomposition systems with various nucleophiles improve reaction rates significantly without affording the recovery and reuse of the nucleophiles. This research focuses on …
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Optical Properties of Individual Nano-Sized Gold Particle Pairs
… affects the SCS even in such a way that a two-particle system may show both a blue- and redshifted SCS, depending only on the distance between the two MNPs. The maximum distance for this effect is the coherence length of the illumination source – a fact of importance for SCS-based experiments …
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Spatial statistical-physical systems
… — Ising model under topological constraints and particle systems with anomalous behavior. Ising model is a mathematical model of ferromagnetism, which describes how magnetic spins, with values -1 or 1, change their states under nearest neighbor interactions and the external magnetic field. We …
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Collective behaviour of active particles with mean-field interaction
… (PDE) from a nonlinear interacting stochastic particle system used to model ants and use the PDE to provide a phase diagram for the collective behaviour of the particle model. The PDE model sustains ants forming bidirectional lanes and ants forming spherical aggregates, and the behaviour …
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Applied stochastic eigen-analysis
… the sample covariance matrix as an interacting particle system, the existence of a phase transition phenomenon in the largest (“signal”) eigenvalue is derived using heuristic arguments. This exposes a fundamental limit on the identifiability of low-level signals due to sample size constraints …
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Brownian particles interacting with a Newtonian Barrier: Skorohod maps and their use in solving a PDE with free boundary, strong approximation, and hydrodynamic limits.
… the hydrodynamic behavior of an interacting particle system. This technique has the benefit of using stochastic methods to show both existence and uniqueness of the resulting PDE with free boundary condition. In 2001, Frank Knight constructed a stochastic process modeling the one dimensional …
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Antimicrobial Carbohydrate Vaccines: Development of Burkholderia pseudomallei immunogens
… by ELISA, slot-blot and the Octet biosensor system. These studies demonstrated the generation of antibodies that were specific for the cognate monosaccharide. Preliminary investigations showed that the 6-deoxy-D-mannoheptose- derived antibodies reacted positively with the natural CPS-1. The …
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