Yayın tarihi için Makale Koleksiyonu listeleme
Toplam kayıt 193, listelenen: 61-80
-
Aspects of achievable performance for quarter-car active suspensions
(Academic Press LTD- Elsevier Science LTD, 2008)In this paper, constraints on the transfer functions from the road disturbance to the vertical acceleration, the suspension travel, and the tire deflection are derived for a quarter-car active suspension system using the ... -
A reversibility enforcement approach for Petri nets using invariants
(2008)Petri net model which is one of the most common modelling method of discrete event systems, is considered to enforce reversibility in this work. Reversibility guarantees that the intial state is reachable from any state ... -
Next Day Load Forecasting Using Artificial Neural Network Models With Autoregression and Weighted Frequency Bin Blocks
(Icic International, 2009)In this study, two different hybrid approaches based on Artificial Neural Network (ANN) models with Autoregressive (AR) method and Weighted Frequency Bin Blocks (WFBB), are used for next day load forecasting. To compare ... -
Comparative Solution of Unit Commitment Problem Using Three Different Methods
(Gazi University, Fac Engineering Architecture, 2009)In this paper, unit commitment problem which is an important subject in power system optimization, is solved by using dynamic programming, Lagrange relaxation, and simulated annealing methods. Dynamic programming method ... -
Neural and mathematical modeling approaches for hourly long term loadforecasting
(2009)In this work, a mathematical model and an Artificial Neural Network (ANN)approach are constructed for the hourly forecasting of long term electric energydemand. Unlike former studies, these methods produce long term load ... -
Electric power quality education and testing laboratory with local utility contribution
(Manchester University Press, 2009)An education and testing laboratory with local utility contribution for electric power quality (PG) studies is presented in this paper. The laboratory functions as an instructional and as a research environment for graduate ... -
Gradient Estimation Using Wide Support Operators
(IEEE-Inst Electrical Electronics Engineers Inc, 2009)One of the fastest methods of localizing edges in images is based on small gradient kernels, such as Sobel, Prewitt, and Roberts. Although small gradient kernels provide a fast way of computing the gradients, they have ... -
Mycielski approach for wind speed prediction
(Pergamon-Elsevier Science LTD, 2009)Wind speed modeling and prediction plays a critical role in wind related engineering studies. However, since the data have random behavior, it is difficult to apply statistical approaches with apriori and deterministic ... -
No-search algorithm for direction of arrival estimation
(Amer Geophysical Union, 2009)Direction of arrival estimation (DOA) is an important problem in ionospheric research and electromagnetics as well as many other fields. When superresolution techniques are used, a computationally expensive search should ... -
Rational interpolation of analytic functions from real or imaginary parts of frequency-response data: A subspace-based approach
(2009)In this letter, construction of analytic functions from evaluations of real or imaginary parts on finite subsets of the unit circle is studied. The points in the subsets are not necessarily uniformly spaced as in the most ... -
A study on performance of dynamic file replication algorithms for real-time file access in Data Grids
(Elsevier Science BV, 2009)Real-time Grid applications are emerging in many disciplines of science and engineering. In order to run these applications while meeting the associated real-time constraints with them, the Grid infrastructure should be ... -
BİRİM YÜKLENME PROBLEMİNİN ÜÇ FARKLI YÖNTEM KULLANILARAK KARŞILAŞTIRMALI ÇÖZÜMLENMESİ
(2009)Bu çalışmada, güç sistemi optimizasyonunda önemli bir konu olan birim yüklenme problemi, dinamik programlama, gevşetilmiş Lagrange ve benzetimli tavlama yöntemi kullanılarak çözülmüştür. Dinamik programlama yöntemi, minimum ... -
Birim yüklenme probleminin üç farklı yöntem kullanılarak karşılaştırmalı çözümlenmesi
(2009)Bu çalışmada, güç sistemi optimizasyonunda önemli bir konu olan birim yüklenme problemi, dinamik programlama, gevşetilmiş Lagrange ve benzetimli tavlama yöntemi kullanılarak çözülmüştür. Dinamik programlama yöntemi, minimum ... -
Missing wind data forecasting with adaptive neuro-fuzzy inference system
(Springer, 2009)In any region, to begin generating electricity from wind energy, it is necessary to determine the 1-year distribution characteristics of wind speed. For this aim, a wind observation station must be constructed and 1-year ... -
Induction machine condition monitoring using notch-filtered motor current
(Academic Press LTD- Elsevier Science LTD, 2009)This paper presents a new approach to induction motor condition monitoring using notch-filtered motor current signature analysis (NFMCSA). Unlike most of the previous work utilizing motor current signature analysis (MCSA) ... -
A novel hybrid (wind-photovoltaic) system sizing procedure
(Pergamon-Elsevier Science LTD, 2009)Wind-photovoltaic hybrid system (WPHS) utilization is becoming popular due to increasing energy costs and decreasing prices of turbines and photovoltaic (PV) panels. However, prior to construction of a renewable generation ... -
Influence of tire damping on mixed H-2/H-infinity synthesis of half car active suspensions
(Academic Press LTD- Elsevier Science LTD, 2009)In this paper, multi-objective control of a half-car suspension system using linear matrix inequalities is studied. It is observed that when tire damping is precisely known, road-holding quality of the suspension system ... -
Decentralised robust flow controller design for networks with multiple bottlenecks
(Taylor & Francis LTD, 2009)Decentralised rate-based flow controller design in multi-bottleneck data-communication networks is considered. An H problem is formulated to find decentralised controllers which can be implemented locally at the bottleneck ... -
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 ... -
Astrophysical image separation by blind time-frequency source separation methods
(Academic Press Inc Elsevier Science, 2009)In this paper, two prevalent blind time-frequency (TF) source separation methods in the literature are adapted to astrophysical image mixtures and four algorithms are developed to separate them into their astrophysical ...