Sökning: "physical function"
Visar resultat 1 - 5 av 1395 avhandlingar innehållade orden physical function.
1. Complex Networks : Structure, Function , Evolution
Sammanfattning : A complex system is a system for which the statement "the whole is greater than the sum of its parts" holds. A network can be viewed as a backbone of a complex system. LÄS MER
2. Computational Studies of Electron Transport in Nanoscale Devices
Sammanfattning : In this thesis, a combination of density functional theory (DFT) based calculations and nonequilibrium Green’s functions are employed to investigate electron transport in molecular switches, molecular cords and nanoscale devices. Molecular electronic devices have been proposed as an approach to complement today’s silicon based electronic devices. LÄS MER
3. Crowded Field Photometry and Luminosity Function Analysis as Probes of Galactic Evolution
Sammanfattning : Crowded field photometry is a powerful method to investigate stellar evolutionary processes in astrophysically interesting regions such as nearby external galaxies and globular cluster cores. While detectors are approaching the physical limits for photon detection, data analysis methods for crowded stellar fields are not yet equally sophisticated. LÄS MER
4. Statistical and Dynamical Aspects of Intermediate Energy Nuclear Collisions
Sammanfattning : Studies of intermediate energy heavy ion reactions have revealed the existence of a number of reducibility and thermal scaling properties in nuclear multifragmentation. In particular, the probability of emitting n-fragments is reducible to the probability of emitting a single fragment through the binomial distribution. LÄS MER
5. Model Vertices Beyond the GW Approximation
Sammanfattning : We study the effects of local vertex corrections to the self energy of the electron gas. We find that a vertex derived from time-dependent density-functional theory can give accurate self energies without including the explicit time dependence of the exchange-correlation potential provided, however, that a proper decay at large momentum transfer (large q) is built into the vertex function. LÄS MER
