Browsing by Author "2"
Now showing items 161-180 of 398
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Fast two-pick n2n round-robin arbiter circuit
Uğurdağ, Hasan Fatih; Temizkan, Fatih; Baskirt, O.; Yuce, B. (IEEE, 2012-06)A regular (one-pick) round-robin arbiter circuit picks one active requester (if any) out of n requesters. A two-pick round-robin arbiter selects up to two requesters. An n2n two-pick round-robin arbiter indicates the picked ... -
Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
Salahi, Salar; Yapıcı, Güney Güven (Elsevier, 2015)In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In ... -
Femto hücre erişim noktaları için uygulama bazlı takvimleyicilerin önemi
Mungan, Devin; Ferazoğlu, Gülden; Sunay, Mehmet Oğuz (IEEE, 2012)In this paper, it is proposed that in order to guarantee a certain level of Quality of service (QoS) for different applications in a femtocell network, it is necessary to use application-based scheduling in femtocell access ... -
Finding event correlations in federated wireless sensor networks
Arı, İsmail; Çelebi, Ömer Faruk (IEEE, 2011)Event correlation engines help us find events of interest inside raw sensor data streams and help reduce the data volume, simultaneously. This paper discusses some of the challenges faced in finding event correlations over ... -
Finding relevant features for statistical speech synthesis adaptation
Bruneau, P.; Parisot, O.; Mohammadi, Amir; Demiroğlu, Cenk; Ghoniem, M.; Tamisier, T. (European Language Resources Association, 2014-05)Statistical speech synthesis (SSS) models typically lie in a very high-dimensional space. They can be used to allow speech synthesis on digital devices, using only few sentences of input by the user. However, the adaptation ... -
Finite-SNR diversity-multiplexing tradeoff for network coded cooperative OFDMA systems
Heidarpour, Ali Reza; Karabulut Kurt, G.; Uysal, Murat (IEEE, 2017-03)Network-coded cooperation (NCC) is an effective method to improve the throughput efficiency in cooperative wireless networks. The combined use of orthogonal frequency division multiplexing (OFDM) with NCC has been further ... -
Finite-SNR DMT analysis for multisource multirelay NCC systems with imperfect CSI
Heidarpour, Ali Reza; Karabulut Kurt, G.; Uysal, Murat (IEEE, 2016)Network coded cooperative (NCC) systems have recently attracted attention with their high spectral and power efficiency. In this paper, we investigate the information theoretical limits of NCC systems in the presence of ... -
A flexible OLED VLC system for an office environment
Chaleshtori, Z. N.; Zvanovec, S.; Ghassemlooy, Z.; Eldeeb, Hossıen Badr; Uysal, Murat (IEEE, 2020)The potential use of flexible substrate-based organic light emitting diodes (OLEDs) as curved or rolled lighting sources offers news opportunities for the implementation of visible light communications (VLC) in indoor ... -
Flow and heat transfer study of an impinging piezoelectric fan over a vertical surface
Parsa, Shadi Habibi; Ghaffari, Omidreza; Solovitz, S.; Arık, Mehmet (ASME, 2016)Piezoelectric fans are low-form-factor cooling devices, which have gained recent attention for electronics cooling. These devices feature a vibrating blade, which sheds vortices from its tip during its motion. The performance ... -
Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer
Razeghi, Alireza; Ertunç, Özgür; Hacibekir, T.; Savci, İ. H. (Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2020)Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature ... -
Force reference extraction via human interaction for a robotic polishing task: Force-induced motion
In this paper, a method to control a manipulator using force-induced trajectory is proposed. The trajectory is learned from an operator doing the polishing task using a tool attached to the robot's end-effector. The learning ... -
FPGA bitstream protection with PUFs, obfuscation, and multi-boot
Gören, S.; Özkurt, Ö.; Yıldız, Abdullah; Uğurdağ, Hasan Fatih (IEEE, 2011)With the combination of PUFs, obfuscation, and multi-boot, we are able to do the equivalent of partial bitstream encryption on low-cost FPGAs, which is only featured on high-end FPGAs. Low-cost FPGAs do not even have ... -
Fracture behavior of ultrafine-grained titanium under tension at elevated temperatures
Sajadifar, Seyed Vahid; Maier, H. J.; Yapıcı, Güney Güven (ASME, 2020-10-01)This investigation focused on the deformation response and microstructural changes of severely deformed titanium during post-severe plastic deformation tension, at temperatures of 300–600 °C and at strain rates of 0.001–0.1 ... -
Frequently hypercyclic weighted backward shifts on spaces of real analytic functions
Anahtarcı, Berkay; Karıksız, Can Deha (TÜBİTAK, 2018)We study frequent hypercyclicity in the case of weighted backward shift operators acting on locally convex spaces of real analytic functions. We obtain certain conditions on frequent hypercyclicity and linear chaoticity ... -
From competitive to multidirectional memory: a literary tool for comparison
Günay-Erkol, Çimen; Sert, Deniz Şenol (Taylor & Francis, 2018)Recent research shows that Turkish society is very polarized and that different identities and ideological perspectives are in constant struggle with each other. In a multicultural society such as Turkey’s, the question ... -
A fundamental approach to electrochemical analyses on chemically modified thin films for barrier CMP optimization
Yagan, Rawana; Başım, Gül Bahar (IOP Publishing, 2019-04-09)Chemical Mechanical Planarization (CMP) process development for 10nm nodes and beyond demands a systematic understanding of atomic-scale chemical and mechanical surface interactions for the control of material removal, ... -
Fusing inertial sensor data in an extended kalman filter for 3D camera tracking
Erdem, Tanju; Ercan, Ali Özer (IEEE, 2015-02)In a setup where camera measurements are used to estimate 3D egomotion in an extended Kalman filter (EKF) framework, it is well-known that inertial sensors (i.e., accelerometers and gyroscopes) are especially useful when ... -
Gabor filter based localization of needles in ultrasound guided robotic interventions
Kaya, Mert; Bebek, Özkan (IEEE, 2014)This paper presents an entropy based parameter tuning method for needle segmentation, and a probability map based needle tip estimation method using Gabor-based line filter. The proposed automatic parameter tuning method ... -
Generalized LED index modulation optical OFDM for MIMO visible light communications systems
Başar, E.; Panayirci, E.; Uysal, Murat; Haas, Harald (IEEE, 2016)In this paper, we propose a generalized light emitting diode (LED) index modulation scheme for multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) visible light communications (VLC) systems. ... -
Generating runtime verification specifications based on static code analysis alerts
Kılıç, Yunus; Sözer, Hasan (ACM, 2017)Runtime verification techniques verify dynamic system behavior with respect to a set of specifications. These specifications are often created manually based on system requirements and constraints. In this paper, we introduce ...
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