نتایج جستجو برای: small control amplitude

تعداد نتایج: 2107431  

Journal: :Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 2018

Journal: :Journal of Mathematical Physics 2022

We study the existence and stability of small-amplitude periodic waves emerging from fold-Hopf equilibria in a system one reaction–diffusion equation coupled with ordinary differential equation. This includes FitzHugh–Nagumo system, caricature calcium models, other models real-world applications. Based on recent results averaging theory, we solve solutions related three-dimensional systems then...

پایان نامه :دانشگاه آزاد اسلامی واحد علوم پزشکی تهران - دانشکده پزشکی 1389

هدف: این مطالعه به منظور بررسی یافته های تست پتانسیل برانگیخته از بینایی در افراد کاندید عمل lasik در پلی کلینیک قدس در سالهای 88 و 89 انجام شده است. روش مطالعه: این مطالعه به صورت یک بررسی توصیفی - تحلیلی مقطعی انجام شده است. حجم نمونه مورد بررسی در این مطالعه شامل 25 نفر بود که تحت درمان به شیوه lasik قرار گرفته بودند. نحوه انتخاب افراد نیز به صورت تصادفی ساده بود. یافته ها: میانگین میزان l...

2018
Jeremy J. Stubblefield Peng Gao Gokhul Kilaru Bilal Mukadam Jeremy Terrien Carla B. Green

The timing of food intake and nutrient utilization is critical to health and regulated partly by the circadian clock. Increased amplitude of circadian oscillations and metabolic output has been found to improve health in diabetic and obesity mouse models. Here, we report a function for the circadian deadenylase Nocturnin as a regulator of metabolic amplitude across the day/night cycle and in re...

2017
Chunbiao Li Julien Clinton Sprott

A new synchronization system is proposed based on the Lyapunov function scheme by introducing the amplitude parameters for projective synchronization with different ratios. Consequently, the complicated controller is replaced by a signal with scale information from the other side of the synchronization system. Based on amplitude control, different regimes of projective synchronization are obtai...

2013
Chunbiao Li

A general approach based on the introduction of a control function for constructing amplitudecontrollable chaotic systems with quadratic nonlinearities is discussed in this paper. We consider three control regimes where the control functions are applied to different coefficients of the quadratic terms in a dynamical system. The approach is illustrated using the Lorenz system as a typical exampl...

MR Palizvan Y Fathollahi

The impact of pentylenetetrazol-induced kindling on the effectiveness of theta pattern primed-bursts (PBs) for the induction of long-term potentiation (LTP) of field excitatory postsynaptic potentials (fEPSP) and population spikes (PS) were investigated in hippocampal CA1 of pentylenetetrazol-kindled rats in vivo. The results showed that shortly after kindling, control animals had normal LTP of...

Journal: :iranian journal of pharmacology and therapeutics 0
pawan kumar verma dinesh kumar s. k. tandan anil kumar srivastava rajinder raina

major proportion of intracellular calcium (ca 2+ ) is achieved through opening of calcium channels present in the plasma membrane which play an important role in regulating neuromuscular coordination and release of neurotransmitters from nerve terminals. blockade of these calcium channels adversely affect contractile process and release of neurotransmitters in majority of the neuromuscular prep...

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