Browsing by Author "2"
Now showing items 121-140 of 398
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Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium
Sajadifar, Seyed Vahid; Wegener, T.; Yapıcı, Güney Güven; Niendorf, T. (Elsevier, 2019-12)The very high-cycle fatigue performances of coarse-grained and ultrafine-grained titanium samples with different geometries at ambient temperature and various stress amplitudes were investigated. Severe plastic deformation ... -
The effect of pH on particle agglomeration and optical properties of nanoparticle suspensions
Al-Gebory, Layth Wadhah Ismael; Mengüç, Mustafa Pınar (Elsevier, 2018-11)Nanoparticle suspensions (NPSs) are used extensively to improve the thermal efficiency of different engineering systems because of their unique thermo-optical properties. NPSs have also been uses in coatings as they improve ... -
Effect of purity levels on the high-temperature deformation characteristics of severely deformed titanium
Sajadifar, Seyed Vahid; Yapıcı, Güney Güven (Springer International Publishing, 2017)In the present investigation, high-temperature compression tests were conducted at strain rates of 0.001 to 0.1 s−1 and at temperatures of 873 K to 1173 K (600 °C to 900 °C) in order to study the hot deformation characteristics ... -
Effect of severe plastic deformation on the damping behavior of titanium
Sajadifar, Seyed Vahid; Atli, C.; Yapıcı, Güney Güven (Elsevier, 2019-06-01)In this work, influence of severe plastic deformation on the damping properties of commercial purity titanium is explored. Deformation induced grain refinement improved the strength at room temperature while this effect ... -
An effective formulation of the multi-criteria test suite minimization problem
Özener, Okan Örsan; Sözer, Hasan (Elsevier, 2020-10)Test suite minimization problem has been mainly addressed by employing heuristic techniques or integer linear programming focusing on a specific criterion or bi-criteria. These approaches fall short to compute optimal ... -
Effective robot skill synthesis via divided control
Kaya, Osman; Öztop, Erhan (IEEE, 2018-07-02)Learning from demonstration is a powerful method for obtaining task skills, which aim to eliminate the need for explicit robot programming. Classically, the tasks are demonstrated to the robot by means of either recorded ... -
Effects of turbulence intensity and length scale on the flame location of premixed turbulent combustion in a diffuser combustor
Nazzal, Ibrahim Thamer; Ertunç, Özgür (J-STAGE, 2017)This study focused on the dependency of the flame location of a premixed propane-air flame on turbulence intensity and length scale. The flame location was investigated using a diffuser-type combustor to show the response ... -
Efficient combinational circuits for division by small integer constants
Uğurdağ, Hasan Fatih; Bayram, A.; Levent, Vecdi Levent; Gören, S. (IEEE, 2016)Division of an integer by an integer constant is a widely used operation and hence justifies a customized efficient implementation. There are various versions of this operation. This paper attacks a particular version of ... -
Efficient resource allocation scheme for multi-user hybrid VLC/IR networks
Eldeeb, Hossıen Badr; Selmy, H. A. I.; Elsayed, H. M.; Badr, R. I.; Uysal, Murat (IEEE, 2019)An optimal fair resource allocation (OFRA) scheme is proposed to mitigate both inter-symbol and inter-user interferences in uplink multi-user VLC/IR networks. The scheme aims to improve the fairness among the users in terms ... -
Effort estimation for architectural refactoring to introduce module isolation
Öztürk, F.; Sarılı, E.; Sözer, Hasan; Aktemur, Tankut Barış (Springer, 2014)The decomposition of software architecture into modular units is driven by both functional and quality concerns. Dependability and security are among quality concerns that require a software to be decomposed into separate ... -
Eklemeli̇ di̇ller i̇çi̇n düşük bellekli̇ melez i̇stati̇sti̇ksel/bi̇ri̇m seçmeli̇ MKS si̇stemi̇
Guner, Ekrem; Demiroğlu, Cenk (IEEE, 2012)The HMM-based TTS (HTS) approach has been increasingly getting more attention from the TTS research community. One of the advantage is the lack of spurious errors that are observed in the unit selection scheme. Another ... -
Electromagnetic structure of charmed baryons
Can, K. U.; Oka, M.; Erkol, Güray; Işıldak, Bora; Takahashi, T. T. (Proceedings of Science, 2013)We compute the electromagnetic form factors of charmed baryons (∑ c, (ξcc, ω c and ω cc) in 2+1 Lattice QCD and extract their electric and magnetic charge radii as well as their magnetic mo-ments. Such observables are ... -
Electromagnetic structure of charmed hadrons
Erkol, Güray; Can, K. U.; Işıldak, Bora; Oka, M.; Ozpineci, A.; Takahashi, T. T. (IOP Publishing, 2014)We compute the electromagnetic structures of D and D* mesons, the singly charmed Σc, Ωc and the doubly charmed Ξcc, Ωcc baryons in 2+1 flavor Lattice QCD. We extract the charge radii and the magnetic moments of these ... -
Elevated temperature mechanical behavior of severely deformed titanium
Sajadifar, Seyed Vahid; Yapıcı, Güney Güven (Springer Nature, 2014-05)In this investigation, compression tests were performed at a strain rate of 0.001-0.1 s(-1) in the range of 600-900 degrees C to study the high temperature deformation behavior and flow stress model of commercial purity ... -
Emergent emotion via neural computational energy conservation on a humanoid robot
Kırtay, Murat; Öztop, Erhan (IEEE, 2013)This paper presents our initial work on how emotion based behaviors may emerge through computational mechanisms. We hold that in addition to basic emotions such as anger and fear that serves bodily well being of the organism, ... -
Emerging market exposures and the predictability of hedge fund returns
Çağlayan, Mustafa Onur; Ulutaş, Sevan (Wiley, 2014)We examine emerging market and global macro hedge funds and find a significant positive relation between hedge funds' future returns and their exposure to both emerging market equities and emerging market currencies. We ... -
Enablers for industry 4.0
Havle, Celal Alpay; Üçler, Çağlar (IEEE, 2018-12-10)Both, globalization and technological advancements do motivate manufacturing organizations to adopt Industry 4.0 practices. It implies an evolutional transformation, which aggregates advanced technologies and cyber-physical ... -
Enabling smart environments through scalable policy reasoning and Internet of Things
Göynügür, Emre; Şensoy, Murat; de Mel, G. (Wiley, 2019-04)In this paper, we discuss how to combine ontology-based policy reasoning mechanisms with in-use Internet of Things applications to customize and automate device behaviors. We discuss how the policy framework can be extended ... -
Energy sensing strategy optimization for opportunistic spectrum access
Ercan, Ali Özer; Sunay, Mehmet Oğuz (IEEE, 2012-06)This paper introduces a correlator-based energy sensing strategy for opportunistic spectrum access in a slow, flat-fading channel. The correlator provides weighted energy accumulation in time. We assume that the noise ... -
Enhanced thermal performance of high flux led systems with two-phase immersion cooling
Cengiz, Ceren; Muslu, Ahmet Mete; Arık, Mehmet; Doğruöz, B. (IEEE, 2020)Considering significant worldwide use of electricity for general lighting, the implementation of energy efficient technologies is highlighted in many platforms with the use of light emitting diodes (LEDs). Because of its ...
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