Güncel Gönderiler: Elektrik ve Elektronik Mühendisliği Bölümü
Toplam kayıt 552, listelenen: 501-520
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Deadlock Avoidance Controller Design for Timed Petri Nets Using Stretching
(IEEE-Inst Electrical Electronics Engineers Inc, 2008)The recently introduced method, which was called "stretching," is extended to timed Petri nets which may have both controllable and uncontrollable transitions. Using this method, a new Petri net, called "stretched Petri ... -
Decentralized Structural Controller Design for Large-Scale Discrete-Event Systems Modelled By Petri Nets
(Kybernetika, 2009)A decentralized structural controller design approach for discrete-event systems modelled by Petri nets is presented. The approach makes use of overlapping decompositions. The given Petri net model is first overlappingly ... -
Supervisory controller design for timed Petri Nets
(IEEE, 2006)A method, called "stretching ", is introduced to represent timed Petri nets. Using this method, a new Petri net, called "stretched Petri net", which has only unit delays, is obtained to represent a timed-transition Petri ... -
Supervisory Controller Design for Timed-Place Petri Nets
(Kybernetika, 2012)Supervisory controller design to avoid deadlock in discrete-event systems modeled by timed-place Petri nets (TPPNs) is considered. The recently introduced approach of place-stretching is utilized for this purpose. In this ... -
Erbium-doped spiral amplifiers with 20 dB of net gain on silicon
(Optical Soc Amer, 2014)Spiral-waveguide amplifiers in erbium-doped aluminum oxide on a silicon wafer are fabricated and characterized. Spirals of several lengths and four different erbium concentrations are studied experimentally and theoretically. ... -
Focused-ion-beam nanostructuring of Al2O3 dielectric layers for photonic applications
(IOP Publishing LTD, 2012)In this work, we report on utilization and optimization of the focused-ion-beam technique for the fabrication of nanostructures on Al2O3 waveguides for applications in integrated photonic devices. In particular, the ... -
An Image-Processing Based Automated Bacteria Colony Counter
(IEEE, 2009)This paper presents an image processing based automated counting system to detect the number of bacteria colonies that develop in Petri dishes of microbiology laboratories. The visible colonies represent the initial number ... -
Impact of Peer-to-Peer Communication on Real-time Performance of File Replication Algorithms
(IEEE, 2008)A variety of file replication algorithms are proposed for Data Grids in the literature. Most of these algorithms ignore real-time Grid applications which are emerging in many disciplines of science and engineering today. ... -
Heuristic Algorithms for Real-Time Unsplittable Data Dissemination Problem
(Springer-Verlag London LTD, 2012)In real-time communication, the timely delivery of the data transfer requests needs to be guaranteed. This work formally introduces the Real-Time Unsplittable Data Dissemination Problem (RTU/DDP), which is a generalization ... -
Biorthogonal Wavelet Vanishing Moment Increment Technique
(IEEE, 2015)Among several lifting style biorthogonal wavelets, Daubechies and Sweldens wavelets provide the maximum number of vanishing moments for the shortest filter length. In this research we propose a method to increase the number ... -
A Work on Real-Time Data Dissemination Problem
(Eurosis, 2011)Multicommodity flow problem deals with delivering multiple data items residing on different source machines on a networking system to their destinations in an efficient manner, while respecting the bandwidth and cost ... -
A Real-Time Data Grid Model With Centralized Job Scheduling
(Eurosis, 2010)A variety of simulators, emulators and real world infrastructures are implemented for Data Grids in the literature. Each of these works defines its own set of services and models. Yet, in the literature, there is no such ... -
Improving Real-Time Data Dissemination Performance By Multi Path Data Scheduling in Data Grids
(Slovak Acad Sciences Inst Informatics, 2015)The performance of data grids for data intensive, real-time applications is highly dependent on the data dissemination algorithm employed in the system. Motivated by this fact, this study first formally defines the real-time ... -
Compact Hardware Implementations of ChaCha, BLAKE, Threefish, and Skein on FPGA
(IEEE-Inst Electrical Electronics Engineers Inc, 2014)The cryptographic hash functions BLAKE and Skein are built from the ChaCha stream cipher and the tweakable Threefish block cipher, respectively. Interestingly enough, they are based on the same arithmetic operations, and ... -
Improvements on deinterleaving of radar pulses in dynamically varying signal environments
(Academic Press Inc Elsevier Science, 2017)An electronic support system receiver which is a passive receiver picks up an interleaved stream of pulses and extracts their pulse parameters. These parameters are sent to a deinterleaving subsystem which sorts them and ... -
A wavelet-based feature set for recognizing pulse repetition interval modulation patterns
(Tubitak Scientific & Technical Research Council Turkey, 2016)This paper presents a new feature set for the problem of recognizing pulse repetition interval (PRI) modulation patterns. The recognition is based upon the features extracted from the multiresolution decomposition of ... -
Design of a Scenario-Based Synthetic Mixed Pulse Generator
(IEEE, 2013)Electronic Support Measures (ESM) plays an important role in modern Electronic Warfare (EW) systems. The main purpose of an ESM system is to intercept as many emissions as it can, and then to deinterleave mixed streams of ... -
A low-area unified hardware architecture for the AES and the cryptographic hash function Grostl
(Academic Press Inc Elsevier Science, 2017)This article describes the design of a compact 8-bit coprocessor for the Advanced Encryption standard (AES) (encryption, decryption, and key expansion) and the cryptographic hash function Grostl. Our Arithmetic and Logic ... -
Hardware design and implementation of a novel ANN-based chaotic generator in FPGA
(Elsevier GMBH, 2016)This paper presents a novel hardware implementation of Artificial Neural Networks (ANNs) for modeling of the Pehlivan-Uyaroglu Chaotic System (PUCS) on Field Programmable Gate Array (FPGA). There are two main parts in the ... -
Spectrum estimation in frequency-domain by subspace and regularization-based algorithms: A survey
(IEEE, 2015)In this survey article, we study methods to identify multi-input/multi-output, discrete-time, linear time-invariant systems from power spectrum measurements. First, we examine subspace-based identification algorithms. A ...
