Results 81 to 90 of about 3,300,859 (238)

The Effect of Screen Time on Delays in Language and Speech Developmental Children: Meta-Analysis

open access: yesJurnal Ilmu dan Teknologi Kesehatan
Language is a communication tool that humans often use. In the current globalisation era, finding and exchanging information takes effort. This is of course because of progress in the era of globalization, everything has become more accessible and easier
Liza Laela Abida
doaj   +1 more source

Attosecond time delay in the photoionization of Mn in the region of the $3p \rightarrow 3d$ giant resonance

open access: yes, 2015
The initial insight into time delay in Mn photoionization in the region of the $3p \to 3d$ giant autoionization resonance is gained in the framework of the "spin-polarized" random phase approximation with exchange.
Deshmukh, P. C.   +3 more
core   +1 more source

A Cumulative-signals-based Method for Time Delay Estimation

open access: yesMeasurement Science Review, 2019
An original method for time delay estimation is presented. It is based on changing input signals into cumulative ones, followed by determination of inflection points of cumulative curves, and estimation of time delay as time difference of these points ...
Mosorov Volodymyr
doaj   +1 more source

Time Delay in Swiss Cheese Gravitational Lensing

open access: yes, 2010
We compute time delays for gravitational lensing in a flat LambdaCDM Swiss cheese universe. We assume a primary and secondary pair of light rays are deflected by a single point mass condensation described by a Kottler metric (Schwarzschild with Lambda ...
Chen, Bin, Dai, Xinyu, Kantowski, Ronald
core   +1 more source

Dimensional reduction of nonlinear time delay systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
Whenever there is a time delay in a dynamical system, the study of stability becomes an infinite-dimensional problem. The centre manifold theorem, together with the classical Hopf bifurcation, is the most valuable approach for simplifying the infinite ...
M. S. Fofana
doaj   +1 more source

Time-Delayed Quantum Feedback Control [PDF]

open access: yesPhysical Review Letters, 2015
A theory of time-delayed coherent quantum feedback is developed. More specifically, we consider a quantum system coupled to a bosonic reservoir creating a unidirectional feedback loop. It is shown that the dynamics can be mapped onto a fictitious series of cascaded quantum systems, where the system is driven by past versions of itself.
openaire   +3 more sources

Weighted Time-Delay Estimation-Based Proportional-Integral-Derivative Control for High-Order Time-Delay Nonlinear Systems

open access: yesIEEE Access
In real-world applications, time delays and uncertain nonlinearities are inevitable and impose significant challenges in modern control systems. The uncertainties commonly include nonlinear backlash-like hysteresis, external disturbances, parameter ...
Syeda Nadiah Fatima Nahri   +5 more
doaj   +1 more source

Effect of TIME Delay on the Transmission of Dengue Fever [PDF]

open access: yes, 2006
The effect of a time delay on the transmission on dengue fever is studied. The time delay is due to the presence of an incubation period during which the virus replicates enough in the mosquito so that the viruses can be transmitted by the mosquito to a ...
Tang, I. (I-Ming)
core  

Dispersive Time-Delay Dynamical Systems

open access: yesPhysical Review Letters, 2017
We present a theoretical approach to model the dynamics of a dispersive nonlinear system using a set of delay differential equations with distributed delay term. We illustrate the use of this approach by considering a frequency swept laser comprimising a semiconductor optical amplifier (SOA), a tunable bandpass filter and a long dispersive fiber delay ...
Huyet, Guillaume   +3 more
openaire   +4 more sources

Time Delay Estimation Algoritms for Echo Cancellation

open access: yesAdvances in Electrical and Electronic Engineering, 2011
The following case study describes how to eliminate echo in a VoIP network using delay estimation algorithms. It is known that echo with long transmission delays becomes more noticeable to users.
Kirill Sakhnov   +2 more
doaj   +1 more source

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