Browsing Master's Theses by Subject "Mechanical Engineering"
Now showing items 1-14 of 14
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A comparative study on the severe plastic deformation of metals by constrained groove pressing
(2018-06)The main purpose of the present thesis is to reveal the microstructural refinement and mechanical behavior improvement of metallic materials, some of which are difficult to work, through severe plastic deformation. Constrained ... -
Determining thermal comfort in built environment using computational fluid dynamics simulations
(2017-06)In this thesis, three-dimensional time-dependent Thermal Comfort (TC) conditions in an occupied room is investigated and determined. The room is considered with furniture of varying materials (i.e. steel, wood, etc.) and ... -
Development of antagonistically actuated active joints with shape memory aloys
(2017-01)The focus of this research work is the development of an active joint antagonistically actuated by shape memory alloys (SMA). Due to their high force to mass ratio these identified as excellent actuator candidates for ... -
Development of nano structured photo-catalytic textile materials
(2017-07)This study focuses on assisting problems which have delayed the commercialization of the photocatalytic textile applications by the following innovative technological developments related to photocatalytic compounds; (i) ... -
Development of the calibration scheme and system integration of the Ozyegin biopsy robot (OBR)
(2016-08)Imaging systems can fail to visualize cancerous tissues for proper diagnosis. Needle based procedures, like biopsies, increase the chances of accurate diagnosis of tumors. These procedures also have applications in minimally ... -
Electrochemical evaluations of TiO2 nano films for advanced engineering applications
(2018-05)This study evaluates the performance TiO2 nano-film for engineering applications, both in biomedicine and microelectronics, were Chemical Mechanical Planarization (CMP) is a main process used for planarizing the metal ... -
Experimental investigation of droplet impact on moving surfaces
(2018-01)Droplet impact on moving surfaces has been studied experimentally by using high-speed photography technique. Fluid properties (droplet diameter and velocity), surface properties (wettability and roughness) and surface ... -
Gallium nitride chemical mechanical planarization development through tool set-up, process and post CMP cleaning optimization
(2018-07)In this thesis, a new Chemical Mechanical Planarization (CMP) process and a complementary tool set-up are introduced to enhance Gallium Nitride (GaN) material removal rates while controlling the post planarization surface ... -
High temperature mechanical characteristics of friction stir processed light alloys
(2018-08)Friction stir processing (FSP) is a recently developed process for surface modification of light alloys that has expanded into applications other than microstructure refinement by the concept of fabricating metal matrix ... -
Low temperature behavior of ZK60 magnesium alloy after thermo-mechanical processing
(2017-08)Due to its low weight and good combination of mechanical strength and formability, wrought magnesium alloys containing zinc and zirconium are widely used in automotive and aerospace industries. Since mechanical properties ... -
Meso-scale cooling devices experimental and numerical heat transfer analysis
(2017-01)Various thermal management strategies and related technologies are recently developed based on the specific needs, which they are designed to fulfill. Some of these technologies are muffin fans, synthetic jets, and ... -
Modelling surface plasmon resonances of arrays of nano particles on a dielectric substrate using discrete dipole approximation with surface interaction (DDA-SI)
(2017-06)Analysis of surface plasmon resonance of arbitrary shape nano-particles on a substrate is important for many engineering applications. The strong optical absorption of noble metal nano-particles is due to the localized ... -
Simulations of droplet impacts on hydrophobic moving walls
(2017-08)Numerical simulations of water drop impact onto hydrophobic surfaces (Wax, Teflon) are carried out through usage of Eulerian multiphase model. Volume of fluid (VOF) model is used to capture the deformation of the water ... -
Structural and flow relationship of microfluidics pulsating high and low frequency jets
(2015-06)Synthetic jets are being investigated last several years. Researchers have been interested in its unique applications for a wide range of flow control to thermal management of electronics applications. Synthetic jets are ...
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