scholarly journals S-образные вольт-амперные характеристики мощных диодов Шоттки при больших плотностях тока

2020 ◽  
Vol 54 (5) ◽  
pp. 470
Author(s):  
А.Г. Тандоев ◽  
Т.Т. Мнацаканов ◽  
С.Н. Юрков
Keyword(s):  
Numerical Simulation ◽  
Schottky Diode ◽  
Carrier Transport ◽  
Analytical Study ◽  
Neutral Drift

Abstract The effect of a set of quasi-neutral regimes of carrier transport in semiconductors, including, along with diffusion and drift, recently discovered diffusion stimulated by quasi-neutral drift, on the characteristics of structures is successively taken into account. The order of change in the carrier transport regimes in Schottky-diode structures is investigated and the features in the I – V characteristics caused by this change are established. The results of analytical study of these features are confirmed using numerical simulation.

scholarly journals Мощные диоды Шоттки с участком отрицательного дифференциального сопротивления на вольт-амперной характеристике

2021 ◽  
Vol 55 (1) ◽  
pp. 75
Author(s):  
А.Г. Тандоев ◽  
Т.Т. Мнацаканов ◽  
С.Н. Юрков
Keyword(s):  
Schottky Diode ◽  
Carrier Transport ◽  
Schottky Diodes ◽  
Differential Resistance ◽  
Analytical Investigation ◽  
Base Layer ◽  
Neutral Drift ◽  
Current Voltage ◽  
Current Densities ◽  
Current Voltage Characteristics

It is shown that at high current densities the carrier transport in base layer of Schottky diodes in addition to commonly accepted diffusive and drift currents is defined by recently discovered diffusion stimulated by quasi-neutral drift (DSQD). The influence of this recently discovered component of current on current-voltage characteristics of Schottky diode has been investigated. It was shown that in case if the ratio of base width $W$ to ambipolar diffusive length $L$ is higher than 1 ($W/L>1$) a part with negative differential resistance appears on the current-voltage characteristics of Schottky diode. The results of analytical investigation are confirmed by numerical calculation using INVESTIGATION program.

scholarly journals “Stability Analysis of Three Species Ammensalism Model with Time Delay”

2019 ◽  
Vol 8 (2S11) ◽  
pp. 3664-3670
Keyword(s):  
Numerical Simulation ◽  
Stability Analysis ◽  
Time Delay ◽  
Global Stability ◽  
Analytical Study ◽  
Present Model ◽  
Ecological Model ◽  
Equilibrium Points

The present model is devoted to an analytical study of a three species syn-ecological model which the 1 st species ( ) N1 ammensal on the 2 nd species ( ) N2 and 2 nd species ( ) N2 ammensal on the 3 rd species ( ) N3 . Here 1 st species and 2 nd species are neutral to each other. A time delay is established between 1 st species and 2 nd species and 2 nd species and 3rd species. All attainable equilibrium points of the model are known and native stability for each case is mentioned and also the global stability of co-existing state is discussed by constructing appropriate Lyapunov operate. Further, precise solutions of perturbed equations are derived. The steadiness analysis is supported by numerical simulation victimization MatLab.

scholarly journals A Three Species Ecological Model with a Predator and Two Preying Species

2016 ◽  
Vol 9 ◽  
pp. 26-32
Author(s):  
Tripuraribhatla Vidyanath ◽  
K. Lakshmi Narayan ◽  
Shahnaz Bathul
Keyword(s):  
Numerical Simulation ◽  
Analytical Study ◽  
Ecological Model ◽  
Equilibrium Points ◽  
The Other ◽  
Positive Equilibrium ◽  
First Order ◽  
Alternate Food ◽  
Linear Differential ◽  
Positive Equilibrium Point

The present paper is devoted to an analytical study of a three species ecological model in which a predator is preying on the other two species which are mutually helping each other. In addition to that, all the three species are provided with an alternate food. The model is characterized by a set of first order non-linear differential equations. All the possible equilibrium points of the model have been derived and the local and global stability for the positive equilibrium point is discussed and supported by the numerical simulation using the MATLAB.

Conformable Fractional SEIR Epidemic Model With Treatment

2021 ◽  
Vol 14 ◽  
Author(s):  
Arti Malik ◽  
Nitendra Kumar ◽  
Khursheed Alam
Keyword(s):  
Differential Equation ◽  
Numerical Simulation ◽  
Asymptotic Stability ◽  
Epidemic Model ◽  
Analytical Study ◽  
Equilibrium Points ◽  
Treatment Modalities ◽  
Local Asymptotic Stability ◽  
Fractional Differential ◽  
Disease Free

Background: The present paper is based on models of conformable fractional differential equation to describe the dynamics of certain epidemics. Methods: In this paper we have divided the population in the susceptible, exposed, infectious, recovered and also describe the treatment modalities. Results: The analytical study of the model show two equilibrium points (disease free equilibrium and endemic equilibrium). Conclusion: For both cases local asymptotic stability has been proven. In the conclusion we have presented the numerical simulation.

Analytical Study of the Duffing Oscillator Excited by Colored Noise Using a Systematic Adiabatic Expansion

1996 ◽  
Vol 63 (4) ◽  
pp. 1027-1032 ◽  
Author(s):  
M. M. Wu ◽  
K. Y. R. Billah ◽  
M. Shinozuka
Keyword(s):  
Numerical Simulation ◽  
Monte Carlo Simulation ◽  
Nonlinear Oscillator ◽  
Analytical Study ◽  
Colored Noise ◽  
Duffing Oscillator ◽  
Planck Equation ◽  
Correlated Noise ◽  
Adiabatic Expansion ◽  
System Parameters

Analytical studies of nonlinear systems driven by colored noise are quite involved. If the inertia of the system is included in analysis, the results are physically realistic although the problem becomes more complex. Research along this line is in progress and this paper is an effort to study a nonlinear oscillator excited by correlated noise. The work delves on the Duffing oscillator driven by exponentially correlated noise. The colored Fokker-Planck equation is derived and the method of systematic adiabatic expansion is used to obtain the reduced probability density function from which the second-order moments are evaluated for different values of system parameters. Numerical simulation is carried out by generating colored noise using the spectral method. In the region where perturbation is valid, the results of adiabatic expansion agree very well with that of Monte Carlo simulation.

Investigation of Light Induced Carrier Transport Phenomena Through ZnCdS Nanocomposite Based Schottky Diode

2016 ◽  
Vol 45 (8) ◽  
pp. 4293-4301 ◽  
Author(s):  
Mrinmay Das ◽  
Somnath Middya ◽  
Joydeep Datta ◽  
Arka Dey ◽  
Rajkumar Jana ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Carrier Transport ◽  
Transport Phenomena
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