Some synthetic routes for amino acid synthesis and new precursors for preparing organic conducting materials

Saygılı (İbrahimzade), Nezire


An Exploratory study on default mode network's time course analysis
Akın, Burak; Gökçay, Didem; Department of Biomedical Engineering (2012)
At resting state, some parts of the human brain is more active than the other areas. Furthermore, the resting state activity in these areas exhibit a sudden decrease when the same areas are recruited in a task. Default mode network (DMN) is one of the resting state networks in the human brain, revealed through functional magnetic resonance (fMR) data acquisition while the subject is in an idle state. The aim of this study is to examine time-course properties of resting state default-mode network by using in...
Synthesis and catalytical activity of new chiral 2-substituted pyrrole derivatives of alpha-amino acids and beta-amino alcohols
Gerçek Arkın, Zuhal; Demir, Ayhan Sıtkı; Department of Chemistry (2000)
Analysis of koch fractal antennas
İrgin, Ümit; Birand, Mehmet Tuncay; Department of Electrical and Electronics Engineering (2009)
Fractal is a recursively-generated object describing a family of complex shapes that possess an inherent self-similarity in their geometrical structure. When used in antenna engineering, fractal geometries provide multi-band characteristics and lowering resonance frequencies by enhancing the space filling property. Moreover, utilizing fractal arrays, controlling side lobe-levels and radiation patterns can be realized. In this thesis, the performance of Koch curve as antenna is investigated. Since fractals a...
Analysis of various microstrip printed geometries using closed-form green’s functions
Ülkü, İrem; Dural Ünver, Mevlüde Gülbin; Alatan, Lale; Department of Electrical and Electronics Engineering (2013)
In general, current distributions for different microstrip structures such as Single Microstrip Line (SML), Coupled Microstrip Line (CML) and Microstrip Patch Antenna (MPA) are obtained by using Method of Moments (MoM) in conjuction with closed-form spatial domain Green’s functions. Specifically, MPA is designed to obtain a Wideband Microstrip Patch Antenna (WMPA). The current distribution is acquired by the same analysis and bandwidth is obtained from the return loss graph for this WMPA. Standard MPA and W...
Design of a radio frequency identification (rfid) antenna
Kalaycı, Sefa; Birand, Mehmet Tuncay; Department of Electrical and Electronics Engineering (2009)
Fundamental features of Radio Frequency Identification (RFID) systems used in different application areas will be reviewed. Techniques used in realizing RFID antenna systems will be studied and the procedure to realize a specific RFID antenna type possessing desired characteristics will be described. Electrical properties such as radiation pattern, impedance will be predicted using analytical and/or computer simulation techniques. Experimental investigations will be carried out to complement the theoretical...
Citation Formats
N. Saygılı (İbrahimzade), “Some synthetic routes for amino acid synthesis and new precursors for preparing organic conducting materials,” Ph.D. - Doctoral Program, Middle East Technical University, 1999.