Dielectric formulation of the three - and two - dimensional quantum many-electron systems

Bulutay, Ceyhun


Angle of graph energy - A spectral measure of resemblance of isomeric molecules
Gutman, I; Türker, Burhan Lemi (2003-11-01)
A method, elaborated earlier by one of the present authors, for measuring the structural resemblance of isomeric alternant conjugated hydrocarbons, based on a graph-spectral quantity theta, called the angle of total pi-electron energy approach has been extended now to arbitrary molecules. Some general properties of theta have been established.
Electron spin resonance spectra of certain gamma-irradiated organic crystals.
Kılıç, Soner; Baysal, Bahattin; Department of Chemistry (1980)
ROADMap: a novel method for role-based and decentralized process modeling
Ertuğrul, Ali Mert; Demirörs, Onur; Department of Information Systems (2015)
Role-based and decentralized process modeling allows actors to focus on modeling their own role behaviors and requires them to communicate and negotiate with each other in order to form a consistent and integrated process model. Due to the collaborative nature of role-based and decentralized process modeling, negotiations among the actors who play different roles have a crucial impact on modeling activity of overall process. Based on the communication and negotiation time among the actors, these types of pr...
Optical transitions in parabolic GaAs/Ga1-xAlxAs superlattices
Erkoç, Şakir; Kokten, H (2001-07-01)
We have performed self-consistent field (SCF) calculations of the electronic structure of GaAs/Ga1-xAlxAs superlattices with parabolic potential profile within the effective mass theory. We have calculated the optical transition matrix elements involving transitions from the hole states to the electron states, and we have also computed the oscillator strength matrix elements for the transitions among the electron states.
Simulation and design of electron gun for travelling wave tube with particle in cell code
Sağcan, Filiz Ece; Demir, Şimşek; Department of Electrical and Electronics Engineering (2014)
Vacuum tubes are widely used microwave devices in many applications such as radar and telecommunication. Electron gun is very important component of a vacuum device since it generates electron beam into the device to interact with electromagnetic waves. Electron gun structures vary according to application and type of vacuum device. In order to design and simulate electron gun, Particle in Cell codes which solves the problems with charged particle motion, are used. In this thesis, various types of electron ...
Citation Formats
C. Bulutay, “Dielectric formulation of the three - and two - dimensional quantum many-electron systems,” Ph.D. - Doctoral Program, Middle East Technical University, 1997.