DSpace@Çankaya

Başlık için Mühendislik Fakültesi listeleme

Başlık için Mühendislik Fakültesi listeleme

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  • Nano-Modification To Improve The Ductility of Cementitious Composites 
    Yeşilmen, Seda; Al-Najjar, Yazin; Balav, Mohammad Hatam; Şahmaran, Mustafa; Yıldırım, Gürkan; Lachemi, Mohamed (Pergamon-Elsevier Science LTD, 2015-10)
    Effect of nano-sized mineral additions on ductility of engineered cementitious composites (ECC) containing high volumes of fly ash was investigated at different hydration degrees. Various properties of ECC mixtures with ...
  • Nanocrystallization In Cu-Zr-Al-Sm Bulk Metallic Glasses 
    Sıkan, Fatih; Yaşar, Bengisu; Kalay, İlkay (Springer, 2018-04)
    The effect of rare-earth element (Sm) microalloying on the thermal stability and crystallization kinetics of melt-spun ribbons and suction-cast rods of Zr48Cu38.4Al9.6Sm4 alloy were investigated using differential scanning ...
  • Nanoscale structure and structural relaxation in Zr 50Cu 45Al 5 bulk metallic glass 
    Hwang, Jinwoo; Melgarejo, Z.H.; Kalay, Y.E.; Kalay, İlkay; Kramer, M.J.; Stone, D.S.; Voyles, P.M. (2012-05-11)
    Hybrid reverse Monte Carlo simulations of the structure of Zr 50Cu 45Al 5 bulk metallic glass incorporating medium-range structure from fluctuation electron microscopy data and short-range structure from an embedded atom ...
  • Navigation Under GNSS Denied Environments: Zero Velocity and Zero Turning Update 
    Çifdalöz, Oğuzhan (2022-08)
    The objective of this paper is to present a method which bounds the error of an inertial navigation system (INS) when Global Navigation Satellite System (GNSS) is not available. Inertial navigation systems utilize gyroscopes ...
  • Neck protection in autonomous car crashes 
    Yavuz, S.; Himmetoğlu, Selçuk (2020)
    All rights reserved.Autonomous cars which are expected to be on the market in the upcoming years, present new challenges to restraint system design since unconventional seating plans can put the occupants at more risk. For ...
  • Neuronavigation Skill Training Through Simulation: Insights From Eye Data 
    Çağıltay, Nergiz; Topallı, Damla; Börcek, Alp Özgün; Tokdemir, Gül; Maraş, Hadi Hakan; Tombul, Gökçen; Aydın, Elif (Iated-Int Assoc Technology Education A& Development, 2016)
    Neuronavigation systems are developed to support the brain surgery operations. Because of its complex anatomical structure, the neurosurgery is a risky and critical operation. The surgeon is required to perform the operation ...
  • Neuronavigation Systems and Passive Usage Problem 
    Çağıltay, Nergiz; Topallı, Damla; Börcek, Alp Özgün; Tokdemir, Gül; Maraş, H. Hakan; Tonbul, Gökçen; Aydın, Elif (IEEE, 2015)
    Nowadays, neuronavigation systems are used in brain surgery procedures, known as a technology to help the surgeon during the operational period. However, the surgeons have faced several problems with the existing systems. ...
  • New compact microstrip patch antennas: Design and Simulation Results 
    Mezaal, Yaqeen S. (2016-03-01)
    Objectives: To design new multi-band antennas based on patch resonator with comparative results to each other. Both antennas are compact in size and have high quality responses which can be applied in many handheld and ...
  • New distinguishers based on random mappings against stream ciphers 
    Turan, Meltem Sönmez; Çalık, Çağdaş; Saran, Nurdan Buz; Doğanaksoy, Ali (Springer-Verlag Berlin, 2008)
    Statistical randomness testing plays an important role in security analysis of cryptosystems. In this study, we aim to propose a new framework of randomness testing based on random mappings. Considering the probability ...
  • New Dual Band Dual-Mode Microstrip Patch Bandpass Filter Designs Based On Sierpinski Fractal Geometry 
    Mezaal, Yaqeen S.; Eyyuboğlu, Halil T.; Ali, Jawad K. (IEEE, 2013-04-06)
    Dual band dual mode chebychev microstrip bandpass filter designs are introduced for first time in this paper. The proposed filter designs are based on the use of dual mode square slotted patch microstrip resonator. These ...
  • New Early Termination Methos For Turbo Decoders 
    Gazi, Orhan (IEEE, 2014)
    Turbo codes have large latency due to iterative decoding steps and complex decoding algorithms To decrease the decoding delay it is essential to terminate the decoding operation as soon as there is sufficient information ...
  • New knowledge in strategic management through visually mining semantic networks 
    Ertek, Gürdal; Tokdemir, Gül; Sevinç, Mete; Tunç, Murat Mustafa (Springer, 2017-02)
    Today's highly competitive business world requires that managers be able to make fast and accurate strategic decisions, as well as learn to adapt to new strategic challenges. This necessity calls for a deep experience and ...
  • New microstrip bandpass filter designs based on stepped Impedance hilbert fractal resonators 
    Mezaal, Yaqeen S.; Eyyuboğlu, Halil T.; Ali, Jawad K. (Taylor&Francis LTD, 2014)
    The proposed microstrip bandpass filters in this paper have compact sizes and narrow band responses which are the requirements of modern wireless communication circuits. These filters are constructed from dual-edge coupled ...
  • New Microstrip Quasi Fractal Antennas: Design and Simulation Results 
    Mezaal, Yaqeen S.; Hammood, Dalal A. (IEEE, 2016)
    New microstrip antennas based on modified versions of Minkowski-like pre-fractal closed loop resonators have been designed in this study as quasi-fractal devices. Both of them have been designed using single layer substrate ...
  • New Microstrip Semi-Fractal Antenna: Design and Simulation Results 
    Mezaal, Yaqeen S. (IEEE, 2016)
    New microstrip antenna derived from the first iteration of Sierpinski fractal portions has been designed in this study as semi-fractal structure. This antenna has been designed using single layer substrate and dual via ...
  • New model for liquid-based rapid prototyping with a scanning Lorentz beam 
    Arpalı, Çağlar (2021-09)
    In this work, a new model is proposed to examine the effect of scanning Lorentz beam on a liquid based rapid prototyping scheme. The interaction of a Lorentz laser beam with a photocurable resin is analysed for different ...
  • New predictor-corrector type iterative methods for solving nonlinear equations 
    Dinçkal, Çiiğdem (2017)
    This paper proposes two new predictor-corrector type iterative methods for finding roots of nonlinear equations. These methods are generated by based on the combination of the two well known Bisection method and ...
  • A new relational learning system using novel rule selection strategies 
    Uludağ, Mahmut; Tolun, Mehmet R. (Elsevier Science, 2006-12)
    This paper describes a new rule induction system, rila, which can extract frequent patterns from multiple connected relations. The system supports two different rule selection strategies, namely the select early and select ...
  • New Upper Bounds for the Computation of Complementary Error Function 
    Gazi, Orhan (2012)
    In this article we provide tighter upper bounds for complementary error function which is a monotonically decreasing function widely used in communication theory. The provided bounds approach the exact value in the ...
  • Noise-Aided Belief Propagation List Decoding of Polar Codes 
    Arlı, A. Çağrı; Gazi, Orhan (IEEE-INST Electrical Electronics Engineers INC, 2019-08)
    Noise can help weak information bearing signal to be detected in nonlinear systems by the use of stochastic perturbation. In this letter, we propose a novel belief propagation list (BPL) decoder that relies on artificial ...