Zobrazeno 1 - 10
of 396
pro vyhledávání: '"Nikzamir A"'
Publikováno v:
EPJ Applied Metamaterials, Vol 9, p 8 (2022)
Exceptional points of degeneracy (EPD) can enhance the sensitivity of circuits by orders of magnitude. We show various configurations of coupled LC resonators via a gyrator that support EPDs of second and third-order. Each resonator includes a capaci
Externí odkaz:
https://doaj.org/article/52af45898d234b09aeedaa1bfc7e5c00
Publikováno v:
EPJ Applied Metamaterials, Vol 9, p 14 (2022)
We study the rise of exceptional points of degeneracy (EPD) in various distinct circuit configurations such as gyrator-based coupled resonators, coupled resonators with PT-symmetry, and in a single resonator with a time-varying component. In particul
Externí odkaz:
https://doaj.org/article/81dc285c701f492dbb1ac2913b1da39f
Autor:
Nikzamir, Alireza, Capolino, Filippo
An oscillator array prefers to operate at an exceptional point of degeneracy (EPD) occurring in a waveguide periodically loaded with discrete nonlinear gain and radiating elements. The system maintains a steady-state degenerate mode of oscillation at
Externí odkaz:
http://arxiv.org/abs/2308.04562
We investigate how a single resonator with a time-modulated component extracts power from an external ambient source. However, the collected power is largely dependent on the precise choice of the modulation signal frequency. We focus on the power ab
Externí odkaz:
http://arxiv.org/abs/2303.10519
Publikováno v:
Tehran University Medical Journal, Vol 65, Iss 8, Pp 74-78 (2007)
Background: Lead poisoning has proven to be one of the most important environmental health problems among developing countries with both direct and indirect effects on human life. Lead is known to cross the blood-brain barrier and placenta, and accum
Externí odkaz:
https://doaj.org/article/615adf15152348558e95f09b597e2ed4
Autor:
Fatemeh Asgari, Mahdi Khodadoust, Abdolrahim Nikzamir, Somayeh Jahani‐Sherafat, Mostafa Rezaei Tavirani, Mohammad Rostami‐Nejad
Publikováno v:
Immunity, Inflammation and Disease, Vol 12, Iss 8, Pp n/a-n/a (2024)
Abstract Background In mammals, amino acid metabolism has evolved to control immune responses. Tryptophan (Trp) is the rarest essential amino acid found in food and its metabolism has evolved to be a primary regulatory node in the control of immune r
Externí odkaz:
https://doaj.org/article/693ad1d67905428780b30f47c2cf31a0
A pulse generation scheme is proposed based on a structured resonance in a cavity where the non-conventional energy distribution is concentrated in its middle part. The cavity is first used as an oscillator during the energy charging step and when a
Externí odkaz:
http://arxiv.org/abs/2206.13564
Autor:
Nikzamir, Alireza, Capolino, Filippo
We propose a scheme for obtaining highly-sensitive oscillators in a coupled-resonator system with an exceptional point of degeneracy (EPD) and a small instability. The oscillator with the exceptional degeneracy is realized by using two coupled resona
Externí odkaz:
http://arxiv.org/abs/2206.04031
Robust transfer efficiency against the various operating conditions in a wireless power transfer system remains a fundamentally important challenge. This challenge becomes even more critical when transferring power to groups of inductively coupled re
Externí odkaz:
http://arxiv.org/abs/2204.10928
The dispersion of a three-way waveguide is engineered to exhibit exceptional modal characteristics. Two coupled waveguides with Parity-Time (PT) symmetry have been previously demonstrated to exhibit second order exceptional points of degeneracy (EPDs
Externí odkaz:
http://arxiv.org/abs/2110.14095