Computer simulation of electromigration induced void grain boundary interactions and the prediction of cathode failure times in bamboo structures

Numerical and experimental investigation on laser damage threshold of highly reflective multilayer thin films Ocak, Mustafa; Sert, Cüneyt; Okutucu Özyurt, Hanife Tuba; Department of Mechanical Engineering (2016) The laser induced temperature distributions on the optical thin films are investigated in this study. Effects of optical design modifications on thermal performance of highly reflective (HR) multilayer thin films are analyzed. Firstly, a conventional 19 layer HR coating is selected as a reference and the laser induced temperature distribution is evaluated on it. Then, alternative HR designs are developed by employing non-quarter wave layers, over coat (OC) layers and two high index materials in the coating ...
Analyses of atmospheric and marine observations along the Turkish coast Tutsak, Ersin; Özsoy, Emin; Department of Physical Oceanography (2012) Time series and spectral analyses are applied to meteorological data (wind velocity, air temperature, barometric pressure) and sea level measurements from a total of 13 monitoring stations along the Turkish Coast. Analyses of four-year time series identify main time scales of transport and motion while establishing seasonal characteristics, i.e. distinguishing, for instance, between winter storms and summer sea-breeze system. Marine flow data acquired by acoustic doppler current pro filers (ADCP) is also a...
Investigation of thin film CdS/CdTe heterojunction devices Mamıkoğlu, Habibe; Erçelebi, Ayşe Çiğdem; Department of Physics (1994)
Computer simulation of stick-slip motion in machine tool slideways Bilkay, O; Anlagan, O (Elsevier BV, 2004-04-01) Especially in CNC (Computer Numerical Control) machine tools, stick-slip motion should be eliminated even at very low sliding speeds. Otherwise, the table begins oscillating around the desired position and exact positioning can never be achieved. In this study, stick-slip motion of plain machine tool slideways is simulated using a two-degree of freedom mathematical model. The governing equations are solved with the help of a mathematical package, MathCad 6.0. The results are compared with experimental ones ...
Sol-Gel processing of organically modified ITO thin films and characterization of their optoelectronic and microstructural properties Kesim, Mehmet Tümerkan; Durucan, Caner; Department of Metallurgical and Materials Engineering (2012) Indium tin oxide (ITO) thin films were formed on glass substrates by sol-gel method. Coating sols were prepared using indium chloride tetrahydrate (InCl3•4H2O) and tin-chloride pentahydrate (SnCl4•5H2O) stabilized in organic solvents (acetylacetone and ethanol). First attempt was to synthesize ITO thin films using standard/unmodified coating sols. The effect of calcination treatment in air (300 – 600 °C) and number of coating layer(s) (1, 4, 7 or 10) on optoelectronic properties (electrical conductivity and...

Citation Formats

E. E. Ören, “Computer simulation of electromigration induced void grain boundary interactions and the prediction of cathode failure times in bamboo structures,” Ph.D. - Doctoral Program, Middle East Technical University, 2003.