Browsing by Title
Now showing items 2311823137 of 24355

Twodimensional fractional Fourier transform and its optical implementation
(Bilkent University, 1996)The IVactional Fourier transform of order a is defined in a manner sucli that tlu' common Fourier transform is a special case with order a = 1. Tlie definition is easil}^ extended to two dimensions just repeating the ... 
Twodimensional lefthanded metamaterial with a negative refractive index
(2006)We present a twodimensional metamaterial with lefthanded properties in a certain frequency range where both effective dielectric permittivity and magnetic permeability is simultaneously negative. A wedgeshaped metamaterial ... 
Twodimensional Mellin and melcepstrum for image feature extraction
(Springer, Dordrecht, 2010)An image feature extraction method based on twodimensional (2D)Mellin cepstrum is introduced. The concept of onedimensional (1D) melcepstrum which is widely used in speech recognition is extended to twodimensions both ... 
Twodimensional mesoporous vanadium phosphate nanosheets through liquid crystal templating method toward supercapacitor application
(Elsevier, 2018)Mesoporous vanadium phosphate (VOPO4) nanosheets have been successfully synthesized through an easy and reproducible lyotropic liquid crystals (LLC) templating approach for the first time. Using the triblock copolymer ... 
Twodimensional micromechanical bimorph arrays for detection of thermal radiation
(American Institute of Physics, 19970616)We demonstrate that twodimensional arrays of micromechanical bimorphs can be used as thermal sensors to image infrared (IR) radiation. A density of 100 pixels per mm2 is achieved by coiling a bimorph beam into the shape ... 
Twodimensional packing algorithms for layout of disconnected graphs
(Elsevier, 2002)We present and contrast several efficient twodimensional packing algorithms for specified aspect ratio. These nearlinear algorithms are based on strip packing, tiling, and alternatebisection methodologies and can be ... 
Twodimensional triangular meshbased mosaicking for object tracking in the presence of occlusion
(1997)In this paper, we describe a method for temporal tracking of video objects in video clips. We employ a 2D triangular mesh to represent each video object, which allows us to describe the motion of the object by the displacements ... 
Twodimensional xray photoelectron spectroscopy for composite surface analysis
(2008)We describe a method for obtaining twodimensional Xray photoelectron spectroscopic data derived from the frequency dependence of the XPS peaks recorded under electrical squarewave pulses, which control and affect the ... 
Twodimensional Yukawa Bose liquid: A SingwiTosiLandSjölander study
(American Physical Society, 1998)We study the groundstate properties of a twodimensional Yukawa boson liquid within the selfconsistent scheme of Singwi et al. [Phys. Rev. 176, 589 (1968)]. The interaction potential being short ranged and having a soft ... 
Twoelectron singlet states in semiconductor quantum dots with Gaussian confinement: A singleparameter variational calculation
(Institute of Physics Publishing, 2007)The problem of two electrons in a threedimensional quantum dot with Gaussian confinement is investigated for the singlet pairing by a variational method with a very simple wavefunction containing only a single parameter ... 
Twolevel description of Turkish morphology
(Oxford University Press, 1994)This paper describes a full twolevel morphological description of Turkish word structures. The description has been implemented using the PCKIMMO environment and is based on a root word lexicon of about 23,000 root words. ... 
A twolevel network design problem with decentralized and centralized intermediate facilities
(Bilkent University, 201709)Within the framework of the TwoLevel Network Design Problems (TLND), we propose a hybrid network design problem that consists of both decentralized and centralized intermediate facilities for resource distribution ... 
A twolevel temporal fair scheduler for multicell wireless networks
(Department of Electrical and Electronics Engineers, 2015)We propose a twolevel scheduler for a frequency reuse1 multicell wireless network satisfying interand intracell weighted temporal fairness constraints. As opposed to hard partitioning of the entire frequency band to ... 
Twomachine flowshop scheduling with flexible operations and controllable processing times
(Bilkent University, 2011)In this study, we consider a twomachine flowshop scheduling problem with identical jobs. Each of these jobs has three operations, where the first operation must be performed on the first machine, the second operation ... 
Twomachine flowshop scheduling with flexible operations and controllable processing times
(2013)We consider a twomachine flowshop scheduling problem with identical jobs. Each of these jobs has three operations, where the first operation must be performed on the first machine, the second operation must be performed ... 
Twonanometer laser synthesized Sinanoparticles for low power memory applications
(Springer International Publishing, 2016)Current flash memory devices are expected to face two major challenges in the near future: density and voltage scaling. The density of the memory is related to the gate length scaling which is constrained by the gate stack, ... 
Twoperson interaction recognition via spatial multiple instance embedding
(Academic Press Inc., 2015)Abstract In this work, we look into the problem of recognizing twoperson interactions in videos. Our method integrates multiple visual features in a weakly supervised manner by utilizing an embeddingbased multiple instance ... 
Twophoton excitation of quantum dots in 3D via stacked fresnel hologram algorithm
(OSA  The Optical Society, 2017)[No abstract available] 
Twosample matching test
(John Wiley & Sons, 2006) 
A twostage stochastic programming approach for reliability constrained power system expansion planning
(Elsevier, 2018)Probabilistic realizations of outages and their effects on the operational costs are highly overlooked aspects in power system expansion planning. Since the effect of randomness in contingencies can be more prominent ...