In this paper, the performance of a CNT-JLTFET under different values of torsional strains of 0, 3, and 5 degrees has been investigated. Simulation has been carried out using non-equilibrium Green’s function (NEGF) formalism in the mode-space approach and in the ballistic limit. The simulation results indicate that, under torsional strain, an increase occurs in the energy band-gap, and thus the...

We investigate temporal coherence and spatial synchronization on small-world networks consisting of noisy Terman-Wang (TW) excitable neurons in dependence on two types of time-delayed coupling: {xj(t− τ)− xi(t)} and {xj(t− τ)− xi(t− τ)}. For the former case, we show that time delay in the coupling can dramatically enhance temporal coherence and spatial synchrony of the noise-induced spike train...

In this paper, the synchronization problem of uncertain neutral-type neural networks (NTNNs) with sampled-data control is investigated. First, a mixed-delay-dependent augmented Lyapunov–Krasovskii functional (LKF) proposed, which not only considers interaction between transmission delay and communication delay, but also takes interconnected relationship neutral into consideration. Then, two-sid...

In the last lecture, two terms Average Delay and RMS Delay Spread were defined as below () () ∫ ∫ ∞ ∞ Φ Φ = 0 0 τ τ τ τ τ µ τ d d (1) () () () ∫ ∫ ∞ ∞ Φ Φ − = 0 0 2 τ τ τ τ µ τ σ τ τ d d c c (2) If the power density is discrete like Figure 1, the Average Delay and RMS Delay Spread for the multipath profile could be written in the following way: () () ∑ ∑ = k k k k k p p τ τ τ τ (3) () 2 2 τ τ σ...

In this paper, we take physical and health integration as the entry point. Firstly, based on transformation mechanism of adolescent idiopathic scoliosis construct a time delay differential model. Moreover, using theory characteristic equation discuss stability positive equilibrium under delays τ=0 τ≠0. Furthermore, through numerical simulation, it has been verified delay, τ, exceeds critical va...

To understand joint effects of logistic growth in target cells and intracellular delay on viral dynamics in vivo, we carry out two-parameter bifurcation analysis of an in-host model that describes infections of many viruses including HIV-I, HBV and HTLV-I. The bifurcation parameters are the mitosis rate r of the target cells and an intracellular delay τ in the incidence of viral infection. We d...

Consider the first-order linear delay differential equation x′(t) + p(t)x(τ(t)) = 0, t ≥ t0, and the second-order linear delay equation x′′(t) + p(t)x(τ(t)) = 0, t ≥ t0, where p and τ are continuous functions on [t0,∞), p(t) > 0, τ(t) is nondecreasing, τ(t) ≤ t for t ≥ t0 and limt→∞ τ(t) = ∞. Several oscillation criteria are presented for the first-order equation when

STABILITY DOMAIN OF LINEAR DIFFERENTIAL EQUATION WITH TWO DELAYS I.S. Levitskaya e–mail: [email protected] Chelyabinsk State Pedagogical University, Chelyabinsk, Russia We study the stability of the zero solution of the differential equation = − − τ − − τ where τ τ ∈ τ ≥ τ ≥ By means of numerical experiments we constructed the stability domains of this equation in space of parameters  for any re...

In this paper, we investigate the stability of equilibrium in stage-structured and density-dependent predator–prey system with Beddington–DeAngelis functional response. First, by checking sign real part for eigenvalue, local origin boundary are studied. Second, explore positive τ=0 τ≠0 (time delay τ is time taken from immaturity to maturity predator), which shows that dependent on parameter τ. ...