Browsing Fen Bilimleri Enstitüsü by Title

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  • Coherence and wavelength effects on the growth mechanism of porous silicon nano-structures 
    Saygılı, Aslı Çakır. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this study, the objective is first to produce regular porous silicon(PS) nanostructures and then to observe the effects of wavelength and coherence length of the light, which is used for illumination, on the growth ...
  • Cohomology groups of mapping class groups 
    Kara, Yasemin. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The mapping class group of an orientable surface of genus g is the group of all orientation preserving piecewise linear homeomorphisms of the surface up to isotopy. In this thesis it is shown that the mapping class group ...
  • Collaborative filtering and content based hybrid models for recommending scientific articles 
    Öğretir, Mine. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Recommendation systems (RS) are programs that assist users in accessing infor mation in vast amount of data collections. In this thesis, we investigate hybrid models that use both implicit ratings such as tags, bookmarks ...
  • Collection center location problem with incentive and distance dependent returns 
    Zenginer, Ergül Taslacıoğlu. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    This study aims at finding the number and locations of collection centers that should be opened and the amount of the financial incentive that should be offered to customers for each returned product in a setting where ...
  • Collection system design problem with routing under a pıck - up policy 
    Tekin, Mehmet Tuğrul. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    This thesis is concerned with collection system design for used products obtained from dealers and is an extension of the works by Aras et al. (2008) and Aras and Aksen (2008). The design decisions involve the locations ...
  • Collective dynamics and conformational sampling of triosephosphate isomerase 
    Cansu, Sertan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Molecular dynamics simulations (30-60 ns runs) are performed on free/apo triosephosphate isomerase (TIM) to determine any correlation between collective motions and loop 6 dynamics. Native TIM is active only as a homo-dimer ...
  • Collective dynamics of protein complex structures : scoring and prediction 
    Özsezen, Serdar. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Docking algorithms are widely used in determination of protein complex structures. In order to determine which structure is the most similar to native one, ranking algorithms are used in docking studies. Each year both ...
  • Colour TV sync pulse generator 
    Orak, Kemal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1981., 1981.)
    In this thesis study, the,synchronizing signals which are used in the transmitter systems of the television that is the most common mass communication means of today have been studied and a practical studio pulse generator ...
  • Combinatorial auction based resource co-allocation model for grids 
    Özer, Ali Haydar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    Resource co-allocation problem is one of the challenging problems in grids. In order to model this problem, a new combinatorial auction based resource co-allocation (CABRC) approach is proposed. This economy based model ...
  • Combinatorial computation techniques for homology comordism invariants of plumbed 3-manifolds 
    Şavk, Oğuz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    We study some invariants of homology cobordism classes in dimension three. These invariants have their roots in gauge theory but are computable combinatori ally for plumbed 3-manifolds. We illustrate certain computation ...
  • Combined formation control and path planning for mobile robot networks 
    Dumlu, Semih Cemil. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    In this thesis, formation control and path planning algorithms in mobile robot networks are examined for both fixed and dynamically changing interaction topologies. The system is modelled using graph-based framework where ...
  • Combined longitudinal-torsional vibration of sandwiched piezoelectric ultrasonic transducers 
    Demir, Bülent Güven. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In this thesis, combined longitudinal-torsional vibration of ultrasonic transducer using impedance matching method is studied. In combined vibration, two modes must resonate in the same frequency. Impedance matching method ...
  • Combined tension and torsion testing of aluminum and polyethylene 
    Korkmaz, Sami. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)
    In this study, the plastic deformation behaviour of five different types of materials have been investigated by performing combined telsion and torsion experiments on thin-walled tubular specimens. The effects of annealing, ...
  • Combining and ranking semantic information for e-government: a citizen complaints management system 
    Zırtıloğlu, Hande. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Complaints management is an important application of E-government. Collecting, combining, and ranking citizens’ complaints is necessary for effective management. Existing complaints management applications expect the ...
  • Commitment-based analysis of organizations : dealing with inconsistencies 
    Nawaz, Shameem Shah. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Multiagent organizations are composed of interacting agents. These agents are usually assigned with roles and have clearly defined tasks so that organizational goals are effectively materialized. Formal specifications of ...
  • Communication theoretic analysis of digital fingerprinting under linear averaging Gaussian attack 
    Dalkılıç, Özgür. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this thesis, performance of correlation detector is investigated from a communication theoretic perspective for additive fingerprinting under Gaussian averaging attack. First, digital fingerprinting problem is modeled ...
  • Community detection in complex networks using local methods and information flow 
    Taşgın, Mürsel. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Many real world systems can be represented using networks or graphs where ele ments of system are denoted by nodes and their relations by edges. Complex networks are special kinds of these networks with their emergent ...
  • Community detection model using genetic algorithm in complex networks and its application in real-life networks 
    Taşgın, Mürsel. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    This work is an endeavor towards analyzing complex networks. Mainly, acommunity detection algorithm based on genetic algorithm will be introduced, and detailedbackground will be developed. Firstly, we introduce community ...
  • Community detection using agents in complex networks 
    Güneş, İsmail. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The main purpose of this work is analyzing the complex networks. Mainly, a new community detection algorithm based on using software agents will be introduced. The technical background will be given in details and the ...
  • Compacted fly ash mixtures as highway safety barriers 
    Mehmetoğlu, Doruk. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1994., 1994.)
    During the past years, research had been carried on in the Bogaziçi University, Soil Mechanics and Foundation Engineering Laboratory to find a way of utilizing two wastes, namely fly ash and rubber chips from old tires. ...

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