Yazar "Rahi, Sabah Ali" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    Ecological system: Stability and ?bifurcation
    (Altınbaş Üniversitesi / Lisansüstü Eğitim Enstitüsü, 2022) Rahi, Sabah Ali; Kurnaz, Sefer
    A three-dimensional prey-predator model is suggested to explain the interplay between prey and two age stages of the predator. The fear function is modeled in the prey population. It has also been hypothesized that the prey is strong enough to show antipredator behavior and has the ability to kill the predator as a natural response to resistance to predation. The traditional Holling’s disk Eq. (Holling type II) is modified to explain the prey consumption to involve an additional food (AF) for the predator, taking into consideration the handling time, and the search time for the prey. The existence, uniqueness, and boundedness of the Sol. of the proposed model are investigated. The local stability analyses are carried out after deciding all viable equilibrium points (EPs). The Lyapunov method is also used to investigate the global stability analyses for this model. The probability of local bifurcation (LB), along with Hopf bifurcation (HB), is studied. Moreover, to complete our study and confirm our analytical results, Numerical simulations are performed to investigate the global dynamics of the model and determine the set of control parameters.
  • [ X ]
    Öğe
    Overhead power line inspection using a prediction model based on system analysis Surveillance of Temperature Using a Modeled Optical System
    (Institute of Electrical and Electronics Engineers Inc., 2023) Abdulateef, Ihsan Amjad; Hasan, Sami; Mohammed, Alaa Hamid; Rahi, Sabah Ali; Shwaysh, Mustafa Muslih; Qaisi, Harith A.
    Modulation of an optical fiber's index of refraction at regular intervals is known as 'Fiber Bragg Grating.'. It operates on the basis that a rise in temperature above the reference point causes a change in the wavelength of the light source, and vice versa. In this study, we discuss the design and analysis of a Fiber Bragg Grating Sensor for tracking and measuring powerline temperatures across a certain temperature range. The highest reflectance of the Bragg wavelength was calculated by Optisystem simulation. The FBG interrogator claims that temperature changes are associated with shifts in the reflected light spectrum.