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- <p>Collisions (Nuclear physics) -- Mathematical models<br />Collisional excitation<br />Electrons -- Capture<br />Electron impact ionization</p> (1)
- <p>Printed circuits -- Design<br />Dielectric devices<br />Signal integrity (Electronics) -- Microwave measurements -- Computer simulation<br />Optical fiber communication</p> (1)
- Distributed optical sensing||Material characterization (1)
- Evolution (Biology) -- Mathematical models<br />Phenotype<br />Percolation (Statistical physics)<br />Phase transformations (Statistical physics) (1)
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Articles 1 - 3 of 3
Full-Text Articles in Physics
Microwave Assisted Reconstruction Of Optical Interferograms For Distributed Fiber Optics Sensing & Characterization Of Pcb Dielectric Properties Using Two Striplines On The Same Board, Lei Hua
Masters Theses
"A new concept, the microwave-assisted reconstruction of an optical interferogram for distributed sensing, was developed to resolve both the position and reflectivity of each sensor along an optical fiber. This approach involves sending a microwave-modulated optical signal through cascaded fiber optic interferometers. The optical spectrum of each sensor can be reconstructed by sweeping the optical wavelength and detecting the modulation signal. A series of cascaded fiber optic extrinsic Fabry-Perot interferometric sensors was used to prove the concept. The microwave-reconstructed interferogram matched well with those recorded individually from a traditional optical spectrometer. The application of distributed strain measurement was also investigated. …
Investigation Of Projectile Coherence Effects In Fully Differential Studies Of 75 Kev Proton - H₂ Collisions, Sachin Sharma
Investigation Of Projectile Coherence Effects In Fully Differential Studies Of 75 Kev Proton - H₂ Collisions, Sachin Sharma
Doctoral Dissertations
"Fully differential cross sections (FDCS) have been measured for single ionization of H2 by 75 keV proton impact with varying transverse coherence length of the projectiles. As reported in recent years, the scattering angle dependence of the doubly differential cross sections (DDCS) are significantly affected by the projectile coherence properties. The interference structures were observed for the coherent beam, however were absent for an incoherent beam. Interestingly, the FDCS measurements for fixed momentum transfer do not suggest significant differences between the coherent and incoherent cross sections. However, for the FDCS with fixed recoil-ion momentum, clear differences between the two …
Speciation Dynamics Of An Agent-Based Evolution Model In Phenotype Space, Adam David Scott
Speciation Dynamics Of An Agent-Based Evolution Model In Phenotype Space, Adam David Scott
Doctoral Dissertations
"This dissertation is an exploration of phase transition behavior and clustering of populations of organisms in an agent-based model of evolutionary dynamics. The agents in the model are organisms, described as branching-coalescing random walkers, which are characterized by their coordinates in a two-dimensional phenotype space. Neutral evolutionary conditions are assumed, such that no organism has a fitness advantage regardless of its phenotype location. Lineages of organisms evolve by limiting the maximum possible offspring distance from their parent(s) (mutability, which is the only heritable trait) along each coordinate in phenotype space. As mutability is varied, a non-equilibrium phase transition is shown …