Fen Bilimleri Enstitüsü: Recent submissions

  • A dynamic simulation model for long-term hypertension progression 
    İncioğlu, Fırat. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Dynamics of blood pressure over the life span of human beings demonstrates a growth path. The most significant theories which aim to explain this trend adopt a kidneydependent approach. Structural reductions in the size ...
  • Performance analysis of a hybrid system under quality impact of returns 
    Behret, Hülya. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Remanufacturing is the process which transforms used products, consisting of components and parts, into products that satisfy the same quality and other standards as new ones. Systems that remanufacture used products face ...
  • Assessing benefits of direct shipment in a deterministic supply chain 
    Meriç, Ebru. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Today's manufacturing establishments have to improve their operations such as logistics, distribution and inventory. Integration of production-distribution systems and scheduling are widely used in manufacturing applications ...
  • Optimization of warehouse setting and cotton textile supplying policy of Sümerbank in Marmara region 
    Yanık, İsmail. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1982., 1982.)
    This thesis presents a mixed integer programming model, designed for the analysis of various planning problems associated with the optimal setting of warehouse capacities and transportation of the cotton textile products ...
  • A distributed time stepped simulation approach for analysis and comparison of shop floor control architectures 
    Beşikci, Umut. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Different shop floor control architectures (SFCAs) are trying to resolve control problem of Flexible Manufacturing Systems (FMSs) by proposing different paradigms. Hierarchical SFCAs enable a layered hierarchy and try to ...
  • Implementation of distributed workflow management systems 
    Çıtakoğlu, Hande. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this work, workflow management systems are investigated and a workflow engine which can be used in the competitive and dynamic business environment for managing distributed workflows is proposed. The currently used ...
  • Theory and applications of a nonconvex programming algorithm 
    Gürman, Erdoğan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1977., 1977.)
    In this thesis, a solution technique to solve a class of nonlinear programming problems is presented. The problem considered is the minimization of separable concave functions and linear functions over linear polyhedra. A ...
  • Novel time-series based DDOS attack detection schemes for traditional networks and software defined networks 
    Fouladi, Ramin Fadaei. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    Distributed Denial of Service (DDoS) attacks are always one of the most signifi cant threats for computer networks since they affect the user satisfaction by degrading the availability of on-line services. Although some ...
  • Multi-modal tensor representations of brain networks 
    Durusoy, Göktekin. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    Considering the economic, social and psychological burdens of Alzheimer’s disease (AD), the most common form of dementia, it is essential to gain insight into the process and underlying mechanisms of the disease. Using ...
  • DDoS attack detection using signal processing and statistical approaches 
    Erhan, Derya. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    DDoS attacks cause a variety of changes in the properties of the attributes in the network traffic. Modeling these changes using signal processing and statistical ap proaches provides detection of these attacks. This thesis ...
  • Multi-dimensional yield-aware optimization of the analog and heterogeneous circuits 
    Pak, Murat. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Even though the design of digital circuits is well supported by several CAD tools, this is not the case for analog circuits and MEMS where the design is typically hand-crafted by expert designers. Several tools have been ...
  • Design, fabrication and characterization of micromachined THz absorbers 
    Mamaghani, Ayda. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    The purpose of this research is to develop a new class of THz absorbers for imaging and sensing applications that can provide improved functionality and perfor mance. These absorbers consist of periodic arrays of layered ...
  • Multilayer perceptron neural network in analog VLSI-A system level study 
    Öğrenci, Arif Selçuk. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    Analog neural networks exhibit a potential for proper/suitable hardware implementation of artificial neural networks. Their advantages such as small size, low power and high speed, however, are seriously questioned/confronted ...
  • Machine heath monitoring for cyber-physical systems 
    Aydemir, Gürkan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Estimating the failure time of the machinery that are used in the production is crucial to achieve an e cient maintenance in Industry 4:0 era. Remaining useful life (RUL) is the term that refers to the length of time in ...
  • Estimating biological changes in human by different markers from RF exposure using modeling and measurements 
    Uluaydın, Niyazi Korkut. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    This thesis dissertation reviews the works of academia on natural occurring electrical, magnetic, and electromagnetic (EM) phenomena and their subtle relations with living organisms. It also investigates the artificial ...
  • Split ring resonators in microwave regime for sensing of reagents in aqueous solutions 
    Çamlı, Berk. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    In this thesis, design, fabrication, and characterization of different microwave band split ring resonator-based sensors used for sensing of glucose in aqueous solu tions are presented. Following an introduction to ...
  • Improving the error floor performance of LDPC codes 
    Sarıduman, Abdullah. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Low-density parity-check codes (LDPC) have become one of the most popular error-correcting code families in recent years due to their high error correction performance and easy implementation. They became one of the biggest ...
  • A high voltage triboelectric energy harvesting system utilizing parallel-SSHI rectifier and DC-DC converters for SUB-5 hz motions 
    Kara, İsmail. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    In this thesis, the first integrated circuit (IC) implementation of parallel synchronized switching harvesting on inductor (parallel-SSHI) is presented for triboelectric energy harvester targeting 1 Hz to 5 Hz mechanical ...
  • Practical channel coding methods for channels with input-dependent noise 
    Ülkar, Mehmet Görkem. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    With the emergence of new applications and needs, communications theory started to be applied to outside of the traditional radio frequency (RF) bands or even in completely di erent channels. Molecular communication and ...
  • Development of a high level synthesis tool specialized on fir-based multirate systems 
    Yurdakul, Arda. (Thesis (Ph.D.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    Digital Signal Processing (DSP) is the most studied area in design automation, because it is one of the most well-established branches of electrical engineering for several years. In the last few years, it is stimulated ...