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- <p>Decision making -- Mathematical models<br />Multiple criteria decision making -- Mathematical models<br />Stochastic analysis<br />Subsistence hunting -- Decision making -- Analysis</p> (1)
- Argon<br />Ionization of gases<br />Positrons (1)
- Collisional excitation<br />Collisions (Nuclear physics) -- Mathematical models<br />Electrons -- Capture (1)
- Cross sections (Nuclear physics)<br />Electron impact ionization<br />Hydrogen<br />Proton beams (1)
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Fully Differential Cross Sections For Four-Body Scattering Processes, Allison L. Harris
Fully Differential Cross Sections For Four-Body Scattering Processes, Allison L. Harris
Doctoral Dissertations
"While the original concept of the atom can be traced back to the ancient Greeks, current knowledge of the atom is due largely to the study of atomic collisions. The structure of atoms is now fairly well understood, but the understanding of their interactions remains incomplete. In atomic collisions, the particles involved in the collision interact through the Coulomb force, which is known exactly. However, for Coulomb forces, the solution of the Schrödinger equation can only be obtained analytically for two mutually interacting particles. As a result, when more than two particles are involved, theory must resort to approximations. The …
Interference Effects Due To Projective-Target Nucleus Scattering In Single Ionization Of Molecular Hydrogen By 75 Kev Proton Impact, Jason S. Alexander
Interference Effects Due To Projective-Target Nucleus Scattering In Single Ionization Of Molecular Hydrogen By 75 Kev Proton Impact, Jason S. Alexander
Doctoral Dissertations
"Doubly-differential cross-sections for the single ionization of molecular hydrogen by 75 keV proton impact have been measured as a function of the projectile scattering angle and energy loss and compared to available theoretical models. Interference structures are directly observed in the scattering angular dependence of the DDCS. The phase angle appears to be most sensitive to the projectile angle but not as sensitive to the electron energy, suggesting that the projectile - target nucleus interaction plays a central role in the interference. The large-angle structures disappear at electron speeds near the projectile speed. This may be due to a focusing …
Triple Differential Measurements Of Single And Multiple Ionization Of Argon By Electron And Positron Impact, Jared M. Gavin
Triple Differential Measurements Of Single And Multiple Ionization Of Argon By Electron And Positron Impact, Jared M. Gavin
Doctoral Dissertations
"Singly, doubly, and triply differential measurements of single and multiple ionization of Ar by 1 keV positron and electron impact have been measured for projectile energy losses from 0 to 200 eV, scattering angles of 0° to ±5°, and electron emission angles from 45° to 135°. For single ionization, both projectiles show similar overall energy loss distributions but differ with respect to varying scattering angles. Triply differential yields for the electron emission demonstrate the binary and recoil features but the lobes are distorted because of extraction field effects plus variations in grid transmission and solid angle as a function of …
The Role Of Stochastic Resonance And Physical Constraints In The Evolution Of Foraging Strategy, Nathan Daniel Dees
The Role Of Stochastic Resonance And Physical Constraints In The Evolution Of Foraging Strategy, Nathan Daniel Dees
Doctoral Dissertations
"This work represents a detailed study of the optimization of this process: foraging within a single, finite food patch for a limited amount of time. The work is an example of the computational algorithms of statistical physics being applied to the ecological field of foraging behavior. The analysis begins with an examination of the probability distributions observed in the movement parameters of the zooplankton, Daphnia. While foraging, these small aquatic organisms stochastically choose movement parameters with particular levels of variation, or noise, which are similar across several species. Here, related simulations consistently show that these noise levels may be adjusted …