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## MAGNETOHYDRODYNAMIC SIMULATIONS OF RECONNECTION AND PARTICLE ACCELERATION: THREE-DIMENSIONAL EFFECTS

## Fast magnetic reconnection and energetic particle acceleration

## Influences of the load centre of gravity on heavy vehicle acceleration

## Suppressing Fermi acceleration in a two-dimensional non-integrable time-dependent oval-shaped billiard with inelastic collisions

## Fermi acceleration with memory-dependent excitation

## Zero, minimum and maximum relative radial acceleration for planar formation flight dynamics near triangular libration points in the Earth-Moon system

## Proton-driven plasma wakefield acceleration: a path to the future of high-energy particle physics

## Acceleration measurements using smartphone sensors: Dealing with the equivalence principle

## System-on-a-Chip (SoC) based Hardware Acceleration in Register Transfer Level (RTL) Design

## Effect of energy losses and interactions during diffusive shock acceleration: applications to SNR, AGN and UHE cosmic rays

## Interactions of UHE cosmic ray nuclei with radiation during acceleration: consequences for the spectrum and composition

## Mass entrainment and turbulence-driven acceleration of ultra-high energy cosmic rays in Centaurus A

## Dependence of the head injury criterion and maximum acceleration on headform mass and initial velocity in tests simulating pedestrian impacts with vehicles

## The Acceleration Vector of a Rigid Body

## Assessment of turbulence model performance: Severe acceleration with large integral length scales

## On Certain Non-linear and Relativistic Effects in Plasma-based Particle Acceleration

Plasma-based particle acceleration holds the promise to make the applications that revolve around accelerators more affordable. The central unifying theme of this dissertation is the modeling of certain non-linear and relativistic phenomena in plasma dynamics to devise mechanisms that benefit plasma-accelerators. Plasma acceleration presented here has two distinct flavors depending upon the accelerated particle mass which dictates the acceleration structure velocity and potential. The first deals with ion acceleration, where acceleration structure velocities are a significant fraction of the speed of light, with major applications in medicine. The second focusses on the acceleration of electrons and positrons for light-sources and colliders where the acceleration structures are wakefields with phase-velocities near the speed of light.

The increasing Lorentz factor of the laser-driven electron quiver momentum forms the basis of Relativistically Induced Transparency Acceleration (RITA) scheme of ion acceleration. Ions are accelerated by reflecting off a propagating acceleration structure, referred to as a snowplow, formed by compression of ponderomotively driven electrons excited in front of a high intensity laser pulse at the critical layer. Its velocity is controlled by tailoring the laser pulse rise-time and rising density gradient scale-length. We analytically model its induced transparency driven propagation with a 1-D model based on the linearized dispersion relation. The model is shown to be in good agreement with the weakly non-linear simulations. As the density compression rises into the strongly non-linear regime...