Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
- Publication
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Agent-Based Modeling Of Emergency Building Evacuation, Vi Q. Ha
Agent-Based Modeling Of Emergency Building Evacuation, Vi Q. Ha
Master's Theses
Panic during emergency building evacuation can cause crowd stampede, resulting in serious injuries and casualties. Agent-based methods have been successfully employed to investigate the collective human behavior during emergency evacuation in cases where the configurational space is extremely simple - usually one rectangular room - but not in evacuations of multi-room or multi-floor buildings. This implies that the effect of the complexity of building architecture on the collective behavior of the agents during evacuation has not been fully investigated. Here, we employ a system of self-moving particles whose motion is governed by the social-force model to investigate the effect of …
Use Of Second Harmonic Generation (Shg) Imaging For 3-Dimensional Ultrastructural Visualization Of Muscle Repair Mechanisms, Matthew Dufner
Use Of Second Harmonic Generation (Shg) Imaging For 3-Dimensional Ultrastructural Visualization Of Muscle Repair Mechanisms, Matthew Dufner
Honors Scholar Theses
In this study, we have combined SHG imaging with various fluorescent dyes which are designed to stain nuclei and used a skeletal muscle injury and regeneration model to establish the ability of this approach to reliably and reproducibly evaluate the above nuclear parameters. By using the cobra cardiotoxin (CTX-1), which creates acute well defined injuries within the muscle, on the tibialis anterior (TA) and gastrocnemius hind limb muscles of mice, predictable and reproducible regenerative patterns (in response to acute injury) can be observed by harvesting muscle samples at specific time points during recovery. Through SHG imaging, we endeavor to document …
Numerical Simulations Of Chirped Excitation, Benjamin Iannitelli
Numerical Simulations Of Chirped Excitation, Benjamin Iannitelli
Honors Scholar Theses
In this project I developed a general method of finding the optimal laser excitation for an ensemble of two-level atoms with the primary goal of exciting as many atoms as possible, as quickly as possible, for as long as possible, in order of decreasing priority. Specifically, I simulated the laser excitation of a collection of Rubidium-87 atoms from (n=5, L=0, S=1/2, J=1/2) to (n=5, L=1, S=1/2, J=3/2), by finding numerical solutions to the optical Bloch equations. I optimized the parameters of a linear chirp paired with a Gaussian intensity pulse first neglecting and then including spontaneous emission, and then for …
Characterization Of A Thermal Reservoir For Consistent And Accurate Annealing Of High Sensitivity Thermoluminescence Dosimeters In Brachytherapy Dosimetry, William Patrick Donahue
Characterization Of A Thermal Reservoir For Consistent And Accurate Annealing Of High Sensitivity Thermoluminescence Dosimeters In Brachytherapy Dosimetry, William Patrick Donahue
Honors Scholar Theses
Unlike regular TLD, an accurate and consistent annealing of the high-sensitivity TLD at 240 ˚C for 15 minutes is challenging using conventional annealing ovens because the temperature in the oven chamber varies drastically over the 15-minute period after the opening (to put the TLD tray in) and closing of oven door. The temperature in the oven drops dramatically after the door is opened and ramps up gradually after the door is closed, often accompanied with significant temperature overshoot. Because an overshoot by more than 5 ˚C can significantly reduce the sensitivity of the TLD and the ramp-up profile varies with …