The electronic structure and optical absorption in modulation doped semiconductor heterostructures

Al-Khader, Rafiq Abdalla


Localized orbital description of electronic band structures, alloys, vacancies in semiconductors.
Erbarut, Erkan; Tomak, Mehmet; Department of Physics (1986)
Finite element investigation of mechanical interaction of dental implants with bone
Eser, Atılım; Tönük, Ergin; Department of Mechanical Engineering (2007)
During the last years, biomechaniccs, the understanding of the very complex mechanical behavior of living tissue, becomes a very important field of research of the wide bravch of mechanichs. Thia study is very important, for instance , to improve the design of implants, with the important social and economical impact. one of important challenges in implant design is to model the complex material behavior of the bone. Remodeling of the bone due to the lodaing is one of the essential behaviors of the bone whi...
Effects of bioreactor operation parameters on intracellular reaction rate distribution in beta-lactamase production by bacillus species
Arifoğlu, Müge; Çalık, Pınar; Department of Chemical Engineering (2004)
In this study, the effects of oxygen transfer (OT) on beta-lactamase production and on intracellular reaction rates were investigated with Bacillus licheniformis ATCC 2597. In order to clarify the oxygen transfer effects on the production of beta-lactamase, firstly a glucose based defined medium was designed and using this medium, the effects of bioreactor operation parameters, i.e., pH and temperature, on beta-lactamase activity and cell formation were investigated in laboratory scale batch-bioreactors usi...
Studies on selective adsorption of aqueous glucose or fructose on various cationic forms of Zeolite Y
Yeşiltepe, Suat Bora; Kıncal, N. Suzan; Department of Biotechnology (2006)
The equilibria of adsorption on calcium and hydrogen forms of zeolite Y by equimolar solutions of 12.5 %, 20%, 25%, 30% and 35% w/v of mixtures of glucose, G and fructose, F; also the non-equimolar mixtures of 20% w/v glucose - 30% w/v fructose, 30% w/v glucose - 20% w/v fructose, 25% w/v glucose 35% w/v fructose, and 35% w/v glucose-25% w/v fructose solutions, which were prepared 24 hours in advance at the experimental temperature, have been studied batch wise at 50ºC. Glucose adsorption, in solutions tha...
Integrated biomimetic scaffolds for soft tissue engineering
Güven, Sinan; Hasırcı, Nesrin; Department of Biotechnology (2006)
Tissue engineering has the potential to create new tissue and organs from cultured cells for transplantation. Biodegradable and biocompatible scaffolds play a vital role in the transfer of the cultured cells to a new tissue. Various scaffolds for soft tissue engineering have been developed, however there is not any structure totally mimicking the natural extracellular matrix (ECM), ready to use. In this study biodegradable and biocompatible scaffolds were developed from natural polymers by tissue engineerin...
Citation Formats
R. A. Al-Khader, “The electronic structure and optical absorption in modulation doped semiconductor heterostructures,” Ph.D. - Doctoral Program, Middle East Technical University, 1994.