Investigation of non-quarter wave design on multilayer optical thin film coatings from a heat transfer point of view

Modelling of dropwise condensation on a cylindrical surface including the sweeping effect Özler, Talip Emrah; Yamalı, Cemil; Department of Mechanical Engineering (2007) The purpose of this study was to analyze the dropwise condensation on a cylindrical surface including the sweeping effect theoretically. For this purpose, first the problem of the equilibrium shape and departure size of drops on the outer surface of a cylinder was formulated. The equations of the surface of the drop were obtained by minimizing (for a given volume) the total energy of the drop which consists of surface and gravitational energy by using the techniques of variational calculus. The departure si...
Investigation of the electromagnetic properties of single walled carbon nanotube thin films Küçükyıldız, Şeyda; Dericioğlu, Arcan Fehmi; Ünalan, Hüsnü Emrah; Department of Metallurgical and Materials Engineering (2013) The work presented in this thesis can be divided in two parts. First part discusses the dispersion and deposition routes of single walled carbon nanotube (SWNT) thin films. Two different types of SWNTs and several dispersing agents were examined to achieve a homogeneous SWNT solution. A tip-sonicator and an ultrasonic bath was compared and it has been found that tip-sonicator increases the efficiency of SWNT dispersions. Vacuum filtration and spray coating techniques were utilized for the deposition of SWNT...
Investigation of structural and optical characteristics of thermally evaporated Ga2Se3 thin films Isik, M.; Hasanlı, Nızamı (2020-09-01) Ga2Se3 thin films were prepared by thermal evaporation technique and structural, optical characteristics of the deposited thin films were investigated in the present study. X-ray diffraction pattern of the thin film exhibited one intensive and sharp peak associated with (111) plane of cubic crystalline structure of the compound. Energy dispersive spectroscopic analyses pointed out the atomic compositional ratio of the constituent elements as consistent with chemical formula of Ga2Se3. The optical characteri...
Investigation of optical parameters of thermally evaporated ZnSe thin films Gullu, H. H.; Coşkun, Emre; Parlak, Mehmet (2015-04-29) In this work, zinc selenide (ZnSe) thin films were deposited by thermal evaporation method using pure elemental (Zn and Se) sources. The physical properties of the films have been investigated in terms of the structural and optical characterizations depending on the post-annealing process under nitrogen atmosphere in the temperature between 300 and 500 degrees C for 30 min. The structural and compositional analyses were carried out by means of X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy...
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...

Citation Formats

M. OCAK, C. Sert, and T. O. Okutucu, “Investigation of non-quarter wave design on multilayer optical thin film coatings from a heat transfer point of view,” 2013, vol. 8885, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47191.