scholarly journals Electromagnetic Oscillator Action as an Introduction to Discrete Physics

2020 ◽  
Vol 4 (3) ◽  
pp. 64-82
Author(s):  
Milan Perkovac
Keyword(s):  
Electromagnetic Oscillator

scholarly journals Electromagnetic Oscillator I und II/Solitonen

1982 ◽  
Vol 38 (1) ◽  
pp. 28-28 ◽  
Author(s):  
Roman Sexl
Keyword(s):  
Electromagnetic Oscillator

scholarly journals Magnetically induced behaviour of ferritin corpuscles in avian ears: can cuticulosomes function as magnetosomes?

2015 ◽  
Vol 12 (102) ◽  
pp. 20141087 ◽  
Author(s):  
Petr Jandacka ◽  
Hynek Burda ◽  
Jaromir Pistora
Keyword(s):  
Hair Cells ◽  
Alternative Hypothesis ◽  
Iron Storage ◽  
Low Field ◽  
Physical Simulations ◽  
Geomagnetic Fields ◽  
And Function ◽  
Sensory Ability ◽  
Iron Storage Protein ◽  
Electromagnetic Oscillator

Magnetoreception is an enigmatic, poorly understood sensory ability, described mainly on the basis of behavioural studies in animals of diverse taxa. Recently, corpuscles containing superparamagnetic iron-storage protein ferritin were found in the inner ear hair cells of birds, a predominantly single ferritin corpuscle per cell. It was suggested that these corpuscles might represent magnetosomes and function as magnetosensors. Here we determine ferritin low-field paramagnetic susceptibility to estimate its magnetically induced intracellular behaviour. Physical simulations show that ferritin corpuscles cannot be deformed or rotate in weak geomagnetic fields, and thus cannot provide magnetoreception via deformation of the cuticular plate. Furthermore, we reached an alternative hypothesis that ferritin corpuscle in avian ears may function as an intracellular electromagnetic oscillator. Such an oscillator would generate additional cellular electric potential related to normal cell conditions. Though the phenomenon seems to be weak, this effect deserves further analyses.

scholarly journals Effect of the localization on the response of a quasi-periodic electromagnetic oscillator array for vibration energy harvesting

2018 ◽  
Vol 241 ◽  
pp. 01003 ◽  
Author(s):  
Kaouthar Aouali ◽  
Najib Kacem ◽  
Elyes Mrabet ◽  
Noureddine Bouhaddi ◽  
Mohamed Haddar
Keyword(s):  
Energy Harvesting ◽  
Periodic System ◽  
Vibration Energy ◽  
Multimodal Approach ◽  
Energy Localization ◽  
Mechanical Stiffness ◽  
Vibration Energy Harvesting ◽  
Weakly Coupled ◽  
Electromagnetic Transduction ◽  
Electromagnetic Oscillator

Vibration energy harvesting by exploiting the multimodal approach in a quasi-periodic system is proposed. The quasi-periodic system, based on electromagnetic transduction, consists of two weakly coupled magnets mechanically guided by two elastic beams. Mistuning is achieved by varying the mechanical stiffness of one of the beams. These imperfections will lead to the vibration energy localization in regions close to the imperfections which will be exploited to maximize the harvested energy.

(1/ω) Noise and the dynamical Casimir effect

1993 ◽  
Vol 71 (3-4) ◽  
pp. 168-171 ◽  
Author(s):  
A. Widom ◽  
E. Sassaroli ◽  
Y. N. Srivastava
Keyword(s):  
Electromagnetic Radiation ◽  
Quantum Electrodynamics ◽  
Casimir Effect ◽  
Dynamical Casimir Effect ◽  
Electromagnetic Oscillator

The dynamical Casimir effect in quantum electrodynamics, which occurs for a frequency-modulated electromagnetic oscillator, is described in terms of reflection backward in time of the oscillator mode. From an experimental viewpoint, baekward-in-time reflections appear as radiated photons. The distribution of the electromagnetic radiation due to a modulation pulse is computed as a function of the frequency ω and is shown to exhbit a (1/ω) singularity in the limit ω → 0.

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