Results 21 to 30 of about 422,173 (267)

Time Delays in Cosmic Ray Propagation [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2011
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 ...
P. Davoudifar
doaj  

Asymptotic and Mittag–Leffler Synchronization of Fractional-Order Octonion-Valued Neural Networks with Neutral-Type and Mixed Delays

open access: yesFractal and Fractional, 2023
Very recently, a different generalization of real-valued neural networks (RVNNs) to multidimensional domains beside the complex-valued neural networks (CVNNs), quaternion-valued neural networks (QVNNs), and Clifford-valued neural networks (ClVNNs) has ...
Călin-Adrian Popa
doaj   +1 more source

Time delay estimation [PDF]

open access: yesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1981
This paper presents a tutorial review of work in time delay estimation. A derivation of the ML estimator for time delay is presented together with an interpretation of that estimator as a special member of a class of generalized cross correlators. The performance of the estimator is given for both high and low signal to noise ratio cases.
openaire   +1 more source

Leader-Following Consensus Control for Multiple Fixed-Wing UAVs’ Attitude System With Time Delays and External Disturbances

open access: yesIEEE Access, 2019
This paper proposes an algorithm of leader-following consensus control of multiple fixed-wing unmanned aerial vehicles'(UAVs) attitudes with time delays and unknown external disturbances.
Yu Tang   +4 more
doaj   +1 more source

Non-Linear Prediction-Based Trajectory Tracking for Non-Holonomic Mobile Robots

open access: yesIEEE Access, 2023
This work addresses the trajectory tracking problem for a non-holonomic differential drive mobile robot with a constant time delay $h$ at the input signal.
Julio A. Baez-Hernandez   +2 more
doaj   +1 more source

Adaptive elimination of synchronization in coupled oscillator

open access: yesNew Journal of Physics, 2017
We present here an adaptive control scheme with a feedback delay to achieve elimination of synchronization in a large population of coupled and synchronized oscillators.
Shijie Zhou   +5 more
doaj   +1 more source

Paramedic versus physician-staffed ambulances and prehospital delays in the management of patients with ST-segment elevation myocardial infarction

open access: yesCardiology Journal, 2021
BACKGROUND: Time delays to reperfusion therapy in ST-segment elevation myocardial infarction (STEMI) still remain a considerable drawback in many healthcare systems.
Artur Borowicz   +5 more
doaj   +1 more source

Hopf bifurcation analysis in a fractional-order survival red blood cells model and PD α $\mathit{PD}^{\alpha} $ control

open access: yesAdvances in Difference Equations, 2018
In this paper, we put forward a fractional-order survival red blood cells model and study the dynamics through the Hopf bifurcation. When the delay transcends the threshold, a series of Hopf bifurcations occur at the positive equilibrium.
Qingshan Sun   +6 more
doaj   +1 more source

Bifurcation Analysis of a Synthetic Drug Transmission Model with Two Time Delays

open access: yesMathematics, 2022
Synthetic drugs are taking the place of traditional drugs and have made headlines giving rise to serious social issues in many countries. In this work, a synthetic drug transmission model incorporating psychological addicts with two time delays is being ...
Hu Zhang   +3 more
doaj   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar   +7 more
wiley   +1 more source

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