Aaron van Dyne - Academia.edu (original) (raw)
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Papers by Aaron van Dyne
This work investigates the parameters that affect 1-D Multiple Frequency Modulation (Multi-FM) Sm... more This work investigates the parameters that affect 1-D Multiple Frequency Modulation (Multi-FM) Smoothing by Spectral Dispersion (SSD) on the National Ignition Facility and demonstrates that a high level of uniformity can be achieved using Multi-FM by employing an optimization procedure. The laser non-uniformity that directly drives an inertial confinement fusion target can imprint on the target's shell during the ablation process, leading to the exponential growth of non-uniformity leading to the shell's destruction. The SSD system mitigates imprint by causing the speckle pattern to evolve continuously, creating many statistically independent patterns that average over time. The 1-D Multi-FM SSD system uses multiple phase modulators with different frequencies in a single dimension. A MATLAB program was developed to optimize 1-D Multi-FM SSD by intelligently varying the parameters to minimize a metric based on time integrated laser non-uniformity and laser system constraint...
Protein-protein binding is an essential phenomenon in molecular-level biology including cell sign... more Protein-protein binding is an essential phenomenon in molecular-level biology including cell signaling and regulation of enzyme activity. The binding and unbinding of the proteins can be studied by Monte Carlo simulation. At each step of the simulation, one protein can either be translated or rotated relative to the other. The energy of the new configuration can then be compared to that of the previous configuration to determine whether the system should return to the previous configuration or stay in the new configuration. These energy calculations are computationally costly, but computing the energy of the system in a six-dimensional grid of configurations before the simulation is run can mitigate this cost. Monte Carlo simulation has now been run using a pre-computed clash table and a table of energies due to electrostatic interactions. These simulations illustrate the feasibility of accelerating Monte Carlo simulation using pre-computed tables. 2 Accuracy of Personal Care Provid...
This work investigates the parameters that affect 1-D Multiple Frequency Modulation (Multi-FM) Sm... more This work investigates the parameters that affect 1-D Multiple Frequency Modulation (Multi-FM) Smoothing by Spectral Dispersion (SSD) on the National Ignition Facility and demonstrates that a high level of uniformity can be achieved using Multi-FM by employing an optimization procedure. The laser non-uniformity that directly drives an inertial confinement fusion target can imprint on the target's shell during the ablation process, leading to the exponential growth of non-uniformity leading to the shell's destruction. The SSD system mitigates imprint by causing the speckle pattern to evolve continuously, creating many statistically independent patterns that average over time. The 1-D Multi-FM SSD system uses multiple phase modulators with different frequencies in a single dimension. A MATLAB program was developed to optimize 1-D Multi-FM SSD by intelligently varying the parameters to minimize a metric based on time integrated laser non-uniformity and laser system constraint...
Protein-protein binding is an essential phenomenon in molecular-level biology including cell sign... more Protein-protein binding is an essential phenomenon in molecular-level biology including cell signaling and regulation of enzyme activity. The binding and unbinding of the proteins can be studied by Monte Carlo simulation. At each step of the simulation, one protein can either be translated or rotated relative to the other. The energy of the new configuration can then be compared to that of the previous configuration to determine whether the system should return to the previous configuration or stay in the new configuration. These energy calculations are computationally costly, but computing the energy of the system in a six-dimensional grid of configurations before the simulation is run can mitigate this cost. Monte Carlo simulation has now been run using a pre-computed clash table and a table of energies due to electrostatic interactions. These simulations illustrate the feasibility of accelerating Monte Carlo simulation using pre-computed tables. 2 Accuracy of Personal Care Provid...