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Boğaziçi Üniversitesi Tezleri: Recent submissions

Now showing items 5061-5080 of 7882

Design and testing of a mechanical strain extensometer

Fercan, Ahmet. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

This thesis’ main aim is to conduct the creation of a mechanical extensometer with its all design levels including its necessary calculations, analysis, manufacturing, electronics and testing of it. The most similar ...
Kinematics of dummies during crash using finite elements and multibody dynamics

Aşkan, Sertan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

First, multibody dynamics model of the occupant compartment is built using a commercial software, Madymo. Occupant results from Madymo model are compared to sled test results and Madymo model is calibrated to better simulate ...
Longitudinal fins of rectangular cross section in heat transfer

Karaca, Ergun. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1965., 1965.)
The effect of interface strength on crack interactions in thin film coated substrates

Özcan, Can. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

Crack interactions and propagation paths for thin film and substrate systemsare studied by using finite element method. 2D edge crack analysis are performed tovalidate robustness of the method used; results are compared ...
IQC-based gain-scheduled control of linear periodic systems using output feedback

Tekeli, Gökhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

In this thesis, output feedback control of linear periodic systems is studied. Themain approach is usign a gain-scheduled controller, where the synthesis of the controlleris based on linear parameter-varying control theory ...
Numerical analysis of newtonian and non-newtonian lid-driven cavity flow in plane and curved geometries

Mercan, Hatice. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

The aim of this thesis is to develop a numerical solution to the lid driven cavityproblem in plane and curved geometries for both Newtonian and non-Newtonian fluids. The planar case is the lid-driven square cavity problem ...
Design of a torpedo: study of drag reduction using computational fluid dynamics

Sancı, Selim. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

Drag is a big problem for objects moving at high speeds. The reduction of dragshould be the primary consideration of the engineers since it provides high speeds withlimited engine power. Drag reduction also provides energy ...
Pressure slip casting method for production of ceramic compact parts

Kaya, Göksu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

The fundamentals of slip casting method is based on the slip gets into form of the mold by the water absorption caused by the means of capillary forces formed on the porosities of the mold after powder suspension is poured ...
Comparison of mechanical properties of semi solid forming and hot forming and hot forming of A356 aluminum alloy

Doğruyol, Erhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)

Thixoforming is a forming technology to produce near net shaped complex partswith high mechanical properties especially for automotive industry. The process is based on a discovery made at MIT in the early 1970s. The ...
The influence of heating conditions on semi-solid forming of aluminum alloys

Önsel, Mehmet. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)

The use of aluminum alloys for complex parts is receiving a great deal of attentionrecently in the automotive sector worldwide. Semi-solid forming appears to be a veryattractive method for producing complex parts as it ...
Mechanical properties and microstructure evolution of thixoformed aluminum alloys

Bozkurt, Uğur. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)

Thixoforming is an attractive process for the manufacture of complex parts withsubstantial savings of time and cost. Different from the conventional metal forming technologies which use either solid metals (forging) or ...
Modeling of an autothermal heat-integrated wall reactor for simulation of hydrogen production for fuel cell applicayions

Biçici, Cihan Banu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)

An autothermal, heat integrated wall reactor model for hydrogen production forvehicular fuel cell applications is investigated using computer-based simulation techniques.The two dimensional reactor model is based on a ...
Shape optimization of notched mechanical members to reduce stress concentration

Çilek, Ufuk. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)

Intensive competition in the market place today requires engineers to continuallysearch for better and more economic designs. Current interest especially in structural shapeoptimization is largely motivated by demands for ...
Investigation of the use of hydrogen as an internal combustion engine fuel

Demo, John C. (1937.)
Influence of processing variables on the physical properties of powder metallurgy products

Akalın, Teoman. (Thesis (M.S.) - Robert College. Faculty of Graduate School of Engineering, 1964., 1964.)
Production of Taq I restriction and modification enzymes by using two different expression systems

Toksoy, Ebru. (Thesis (Ph.D)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 2000, 2000.)

Taq I restriction-modification system has been cloned and expressed using two different expression systems. In the first system, Taq I restriction endonuclease was expressed as a fusion protein with the maltose-binding ...
Analysis of folding kinetics for simplified model proteins

Özkan, Ş. Banu. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)

The conformational stochastics of simplified model chains that show an apparent two-state kinetics was explored.. A fundamental question addressed in the present analysis is to understand if the folding takes place through ...
A process for the deterpenation of essential oils by extraction/adsorption/desorption using supercritical carbon dioxide

Eskinazi, Orli A. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)

The main purpose of this study was to establish a supercritical-fluid-aided process in order to enhance the quality of essential-oils products through the removal of the monoterpene (MT) hydrocarbons. The example oil chosen ...
Fermentation and recovery of EcoRI endonuclease using two different genetically engineered E.coli strains

Yıldır (Tamerler), Candan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1997., 1997.)

A small scale procedure developed for the purification of EcoRI restriction enzyme has been applied to two different overproducing E.coli strains. The final purification yields obtained are 1.3x105 U/g cells for E.coli ...
Fermentation characteristics of four genetically engineered Saccharomyces cerevisiae strains

Birol (Deniz), Gülnur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1997., 1997.)

The production of ethanol from starch has been investigated in four genetically modified Saccharomyces cerevisiae strains (YPG/AB, YA7, YPG/MM and YPB-G). Three of the four strains produce the Aspergillus awamori glucoamylase ...

Now showing items 5061-5080 of 7882

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