Browsing by Author "2"
Now showing items 201-220 of 398
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The impact of policy decisions on global liquidity during the recent financial crisis
Satıroğlu, Sait; Şener, Emrah; Shafer, M.; Yıldırım, Y. (Wiley, 2015-03)The collapse of the recent housing price bubble precipitated the 2007–2008 financial crisis and caused international funding liquidity to dry up. We investigate how economic policies undertaken by the Federal Reserve and ... -
The impact of pulse shaping filters on OFDM-based visible light communications
Narmanlıoğlu, Ömer; Kızılırmak, R. C.; Uysal, Murat (IEEE, 2017)This paper discusses the impact of pulse shaping filter on the performance of orthogonal frequency division multiplexing (OFDM) based visible light communication (VLC) systems. Particularly, direct current biased optical ... -
The impacts of portfolio learning on our program
Eyüboğlu, Gülseren; Ünlü, Gökçe (2014-04-02)One of the vital aspects of teaching a new language is encouraging learners to become autonomous, reflect on and plan their own learning. At Ozyegin University, Turkey, we enable our students to keep a learning portfolio ... -
An improved speed controller for PMSM drive with unbalanced load using load torque observer
Yoldaş, Koray; Tekin, Ahmet; Boztepe, M. (IEEE, 2019)In order to overcome disturbance effects as load torque variations in Permanent Magnet Synchronous Motor (PMSM) of washing machines, an improved controller with feed forward compensation is presented in this paper. A few ... -
Improving blood products supply through donation tailoring
Özener, Okan Örsan; Ekici, Ali; Göktürk, Elvin Çoban (Elsevier, 2019-02)Recent technological advances, called Multicomponent Apheresis, allow tailoring the blood donations based on the demand and current inventory levels of blood products. Different from the most common type of blood donation ... -
Improving selectivity on germanium CMP applications
Karagöz, Ayşe; Başım, Gül Bahar (ECS, 2014)In the presented paper, the adsorption characteristics of cationic and anionic surfactants on germanium and silica were studied in order to improve selectivity in germanium based shallow trench isolation chemical mechanical ... -
Improving the performance of wireless H.264 video broadcasting through a cross-layer design
Atıcı, Çağdaş; Sunay, Mehmet Oğuz (IEEE, 2009)In a wireless video broadcasting service, number of users receiving the service and the average video quality of the received stream have to be maximized for improving the system performance. To solve this problem optimally, ... -
Incremental diversity order for characterization of FSO communication systems over lognormal fading channels
Elamassie, Mohammed; Uysal, Murat (IEEE, 2020-04)Free space optical (FSO) communication systems experience atmospheric turbulence-induced fading, which is typically modelled by lognormal distribution. Since the decreasing rate of error probability over lognormal fading ... -
Industrial design education in the age of digital products
İlhan, Işıl Oygür; Karapars, Gülhis Zeynep (Taylor & Francis, 2019)Preparing product design students for the design of digital products provides a challenge for product design educators. This paper reports an experiment in a senior-year product design studio course. Students were ... -
Influence of heat treatment parameters on the functional behavior and corrosion performance of a shape memory wire actuator
Şimsek, Görkem Muttalip; Yapıcı, Güney Güven (Trans Tech Publications Ltd, 2020-04)In the present study, the effect of heat treatment parameters on the functional response, corrosion behavior and microstructural evolution of NiTi shape memory alloys were investigated. Various heat treatment regimes were ... -
Influence of Sporasarcina pasteurii cells on rheological properties of cement paste
Azima, Mahzad; Bundur, Zeynep Başaran (Elsevier, 2019-11-20)Nowadays with the developments in the concrete materials technology, researches started to focus on highly flowable mixes with improved rheological properties. These highly flowable mixes generally require use of viscosity ... -
Influence of turbulent flow characteristics on flame behaviour in diffuser combustors
Nazzal, Ibrahim Thamer; Ertunç, Özgür (Elsevier, 2019-03-01)The influence of turbulence on flame location in a diffuser-type combustor is the focus of this study. Two types of diffuser combustors were selected to study the influence of turbulence intensity and length scale on flame ... -
Information theoretic analysis and optimization of underwater acoustic communication systems
Nouri, Hatef; Uysal, Murat (IEEE, 2013)In this paper, we investigate the information theoretical limits of underwater acoustic channel with intersymbol interference. Under the assumptions of sparse and frequency-selective Rician fading channel and non-white ... -
Information theoretical performance analysis and optimisation of cooperative underwater acoustic communication systems
Nouri, Hatef; Uysal, Murat; Panayirci, E. (IEEE, 2016-05)In this study, the authors investigate the information theoretical limits on the performance of single-carrier cooperative underwater acoustic communication systems in the presence of intersymbol interference. The authors ... -
Information theoretical performance limits of single-carrier underwater acoustic systems
Nouri, Hatef; Uysal, Murat; Panayırcı, E.; Senol, H. (IEEE, 2014)In this study, the authors investigate the information theoretical limits on the performance of point-to-point single-carrier acoustic systems over frequency-selective underwater channels with intersymbol interference. ... -
Integrated blood collection and appointment scheduling
Mobasher, A.; Ekici, Ali; Özener, Okan Örsan (Institute of Industrial Engineers, 2012)Considering the processing requirements of donated blood, we study an integrated blood collection and appointment scheduling problem. We develop a mixed integer programming model to maximize the amount of donated blood ... -
Integrated engineering and architecture for the energy efficient academic buildings
Mengüç, Mustafa Pınar; Somuncu, Yasemin; Çağlayan, Şahin; Özcan, Saadet; Sefer, Burak; Simitli, Utku (International Building Performance Simulation Association, 2015-12)In this paper, we outline a comprehensive and integrated collaboration between engineering and architecture team to build an energy efficient building. Within the framework of the EU FP7 project, titled NEED4B, we have ... -
An integrated homogenization–based topology optimization via RBF mapping strategies for additively manufactured FGLS and its application to bandgap structures
Şimşek, Uğur; Gayir, C. E.; Kiziltas, G.; Şendur, Polat (Springer Nature, 2020)The manufacturing of lattice structures has been greatly facilitated thanks to the advances in additive manufacturing. Functionally graded lattice (FGL) structures, a major class of such structures, developed using topology ... -
Inventory routing for the last mile delivery of humanitarian relief supplies
Ekici, Ali; Özener, Okan Örsan (Springer Nature, 2020-09)Fast and equitable distribution of the humanitarian relief supplies is key to the success of relief operations. Delayed and inequitable deliveries can result in suffering of affected people and loss of lives. In this study, ... -
An investigation into flow and heat transfer for a slot impinging synthetic jet
Ghaffari, Omidreza; Solovitz, S. A.; Arık, Mehmet (Elsevier, 2016-09)According to the latest trends in miniature consumer and military electronics, there is a need for compact cooling solutions to meet performance requirements at compact volumes. Successful technology must feature a thin ...
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