DSpace@Çankaya

Başlık için Mühendislik Fakültesi listeleme

Başlık için Mühendislik Fakültesi listeleme

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  • Laguerre-Gaussian beam scintillation on slant paths 
    Yüceer, Mehmet; Eyyuboğlu, Halil T. (Springer, 2012-11)
    Scintillation evaluations for Laguerre-Gaussian (LG) beams for slant paths are made using Rytov approximation. On- and off-axis scintillation is formulated and calculated up to several tens of kilometers of slant distances ...
  • Laminar Forced Convection Over An Inclined Flat Plate With Unheated Starting Length 
    Turgut, Oğuz; Özcan, Ahmet Can; Türkoğlu, Haşmet (Gazi Univ, 2019-03)
    Two-dimensional laminar forced convection over an inclined flat plate with an unheated starting length was investigated numerically for both constant surface temperature and constant heat flux boundary conditions. The ...
  • Lane Change Scheduling for Autonomous Vehicles 
    Atagoziyev, Maksat; Schmidt, Klaus W.; Schmidt, Ece G. (2016)
    The subject of this paper is the coordination of lane changes of autonomous vehicles on a two-lane road segment before reaching a given critical position. We first develop an algorithm that performs a lane change of a ...
  • Large-scale hyperspectral image compression via sparse representations based on online learning 
    Ülkü, İrem; Kizgut, Ersin (Univ Zielona Gora Press, 2018-03)
    In this study, proximity based optimization algorithms are used for lossy compression of hyperspectral images that are inherently large scale. This is the first time that such proximity based optimization algorithms are ...
  • Laser array beam propagation through liver tissue 
    Gökçe, Muhsin Caner; Baykal, Yahya; Ata, Yalçın (2020-04)
    Laser array beam propagating through mouse liver tissue is investigated. The turbulence power spectrum of the liver tissue is employed in the extended Huygens-Fresnel method to obtain an optical intensity profile and beam ...
  • Laser array beam scintillation in oceanic turbulence 
    Baykal, Yahya; Ata, Yalçın; Gökçe, Muhsin C. (2020)
    In this study, on-axis scintillation of laser array beam in oceanic turbulent medium is investigated. By using Rytov method, scintillation index variations are reported in connection with the propagation distance, rate of ...
  • Laser array field correlations in underwater turbulence 
    Baykal, Yahya Kemal; Ata, Yalçın; Gökçe, Muhsin Caner (2022)
    In underwater turbulent medium, field correlations are found when the incidence is a laser beam array. Variations of the field correlations against the variations in the ring radius of laser array beam, number of beamlets ...
  • Laser beam scintillations of LIDAR operating in weak oceanic turbulence 
    Gerçekçioğlu, Hamza; Baykal, Yahya (2023-01)
    The formulation of light detection and ranging (LIDAR) systems is derived and examined for the scintillation index, evaluated on-axis, of laser beams in horizontal links in the ocean with weak turbulence by utilizing the ...
  • Lecture Notes in Engineering and Computer Science 
    Dinçkal, Çiğdem (Newswood Limited, 2012)
    A new procedure for representation of elastic constant tensor in terms of its orthonormal decomposed parts is presented. Form invariants and orthonormalized basis elements are used to generate this decomposition method. ...
  • LED’lerin Spektrofotometride Kullanımı 
    Yurttaş, Hüseyin Galip; Özdumanlar, Sercan; Cambaz Büke, Göknur; Çil, Celal Zaim; Kamışlı, Özcan; Ertuğ, A. Mithat (2011)
    Işık yayan diyotların (Light Emitting Diode-LED) ışık yayma modunda verici olduğu, fotodiyot veya güneş pili modunda alıcı olduğu bir düzenek oluşturularak LED’lerin çeşitli ışık şiddetleri altında ürettikleri fotoakım değerleri ...
  • Lensfree on-chip fluorescence microscopy for high-throughput imaging of bio-chips 
    Coşkun, Ahmet F.; Arpalı, Serap Altay; Arpalı, Çağlar; Su, Ting-Wei; Sencan, İkbal; Herman, David; Suh, Yeongseok; Özcan, Aydoğan (2014)
    On-chip fluorescence microscopy is an emerging platform that enables high-throughput screening of bio-chips over a wide field-of-view without the use of any lenses, thin-film filters or mechanical scanners. In this review, ...
  • Line-of-sight rate construction for a roll-pitch gimbal via a virtual pitch-yaw gimbal 
    Çifdalöz, Oğuzhan (2021)
    In this paper, a method to construct the line of sight rate of a target with a roll-pitch gimbal and tracker is described. Construction of line-of-sight rate is performed via utilizing a virtual pitch-yaw gimbal. Kinematics ...
  • Link Prediction in Knowledge Graphs with Numeric Triples Using Clustering 
    Bayrak, Betül; Choupani, Roya; Doğdu, Erdoğan (2020)
    Knowledge graphs (KG) include large amounts of structured data in many different domains. Knowledge or information is captured by entities and relationships between them in KG. One of the open problems in knowledge graphs ...
  • Literature Review on Cyber Security Investment Decisions 
    Çil, Celal Zaim; Şentürk, Hakan; Sağıroğlu, Şeref (Gazi Univ, 2016-03)
    Severe financial losses incurred by cyber security attacks with increasing complexity and frequency, as well as booming cyber security sector offering variety of products as investment options have led the focus of the ...
  • Local Chemical and Topological Order in Al-Tb And its Role in Controlling Nanocrystal Formation 
    Kalay, Y. E.; Kalay, I.; Hwang, Jinwoo; Voyles, P. M.; Kramer, M. J. (Pergamon-Elsevier Science LTD, 2012-03)
    How the chemical and topological short- to medium-range order develops in Al-Tb glass and its ultimate effect on the control of the high number density of face-centered-cubic-Al (fcc-Al) nuclei during devitrification are ...
  • Local decision making and decision fusion in hierarchical levels 
    Beldek, Ulaş; Leblebicioğlu, Kemal (Springer, 2009-07)
    Hierarchical problem solving is preferred when the problem is overwhelmingly complicated. In such a case, the problem should better be analyzed in hierarchical levels. At each level, some temporary solutions are obtained; ...
  • Local Decision-Making in multiple levels for lottery data analysis 
    Beldek, Ulaş; Leblebicioǧlu, K. (2011)
    Sales forecasting is a common problem in economics. Lottery sales are one of the favorite issues of sales forecasting. Sales of lottery tickets depend on many economical issues and such a problem was investigated previously ...
  • Local scour evolution around semi-circular end bridge abutment in quasi-unsteady condition 
    Gökmener, Serkan; Göğüş, Mustafa (2022-08-01)
    In this experimental study, the temporal development of local scour is studied around semi-circular end bridge abutments under quasi-unsteady clear-water flow conditions in a rectangular sediment channel. A step-wise ...
  • Localization of metallicity and magnetic properties of graphene and of graphene nanoribbons doped with boron clusters 
    Özdoğan, Cem; Kunstmann, Jens; Quandt, A (Taylor&Francis INC, 2014)
    As a possible way of modifying the intrinsic properties of graphene, we study the doping of graphene by embedded boron clusters with density functional theory. Cluster doping is technologically relevant as the cluster ...
  • Localization of Semantic Category Classification in FMRı Images 
    Alkan, Sarper; Yarman-Vural, Fatos T. (IEEE, 2014)
    In this study, we provide a methodology to localize the brain regions that contribute to semantic category classification. For this purpose we first cluster the data using spectral clustering. Then we extract local features ...