نتایج جستجو برای: delays analysis

تعداد نتایج: 2856843  

Journal: :Human brain mapping 2001
Z S Saad K M Ropella R W Cox E A DeYoe

In this study, we implemented a new method for measuring the temporal delay of functional magnetic resonance imaging (fMRI) responses and then estimated the statistical distribution of response delays evoked by visual stimuli (checkered annuli) within and across voxels in human visual cortex. We assessed delay variability among different cortical sites and between parenchyma and blood vessels. ...

This paper is pertained with the problem of admissibility analysis of uncertain discrete-time nonlinear singular systems by adopting the state-space Takagi-Sugeno fuzzy model with time-delays and norm-bounded parameter uncertainties. Lyapunov Krasovskii functionals are constructed to obtain delay-dependent stability condition in terms of linear matrix inequalities, which is dependent on the low...

2006
Ning Xu Kathryn B. Laskey Chun-hung Chen Shannon C. Williams Lance Sherry Kathryn Blackmond Laskey Chun-Hung Chen Shannon Cobb Williams

Network transportation systems exhibit complex relationships between delays on individual transportation segments and between the factors that cause delays. Researches have shown that these delays are an inherently stochastic phenomenon that is difficult to predict with certainty, even from micro-level aircraft information. This paper describes a stochastic Bayesian Network model to analyze the...

2011
Ricardo Sousa Aníbal Ferreira

In this paper we introduce new phase-related features denoting the delay between the harmonics and the fundamental frequency of a periodic signal, notably of voiced singing. These features are identified as Normalized Relative Delay (NRD) and denote the phase contribution to the shape invariance of a periodic signal. Thus, NRDs are amenable to a physical and psychophysical interpretation and ar...

Journal: :JCM 2014
De-Qing Kong Yun-Qiu Tang

—The estimation accuracy of antenna delay is one of the most important parameters for arraying combining performance in deep space network. The least squares estimation method of delays is presented, considering the geometric relation of delays estimated by cross-correlation, and theoretical analysis of the method is also presented. The complementary Kalman filtering method of delays is also p...

Journal: :the modares journal of electrical engineering 2015
syed hamid hashemipour nastrn vasegh ali khaki sedigh

in this paper, the problem of decentralized model reference adaptive control (mrac) for a class of large scale systems with time varying delay in interconnected term and input and state delays is studied. to compensate the effect of input delay indirectly, a smith predictor built on. to handle the effects of the time delays in input, the adaptive controller part includes two auxiliary dynamic f...

P. Davoudifar

Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...

2013
Franco S. Gentile Jorge L. Moiola

In this article, we develop a modified version of the graphical Hopf bifurcation theorem for capturing smooth oscillations of delay differential equations with distributed delays. Our approach relies on a simple interpretation of the effect of the distributed delay based on the Laplace transform. The theoretical results are illustrated with an example of neural networks.

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