On the interaction between two fireballs in low-temperature plasma

DG Dimitriu, SA Irimiciuc, S Popescu, M Agop… - Physics of …, 2015 - pubs.aip.org
We report experimental results and theoretical modeling showing the interaction between
two fireballs excited on two positively biased electrodes immersed in a low-temperature …

Experimental and theoretical investigations of the negative differential resistance in a discharge plasma

M Agop, P Nica, O Niculescu… - Journal of the Physical …, 2012 - journals.jps.jp
Negative differential resistance effect in the current–voltage characteristic simultaneously
with the generation of a fireball in a plasma diode was experimentally evidenced by …

Type I intermittency related to the spatiotemporal dynamics of double layers and ion-acoustic instabilities in plasma

S Chiriac, DG Dimitriu, M Sanduloviciu - Physics of plasmas, 2007 - pubs.aip.org
Anodic double layer instabilities occur in low-temperature diffusion filament-type discharge
plasma by applying a certain positive bias with respect to the plasma potential to an …

Experimental and theoretical investigations of plasma multiple double layers and their evolution to chaos

DG Dimitriu, M Aflori, LM Ivan, V Radu… - … Sources Science and …, 2013 - iopscience.iop.org
We report experimental results showing that a discharge plasma, which self-structures as
concentric multiple double layers, is capable of evolving towards chaos through a cascade …

Experimental and theoretical evidence for the chaotic dynamics of complex structures

M Agop, DG Dimitriu, O Niculescu, E Poll… - Physica Scripta, 2013 - iopscience.iop.org
This paper presents the experimental results on the formation, dynamics and evolution
towards chaos of complex space charge structures that emerge in front of a positively biased …

Hysteresis in amplitudes of self-excited oscillations for co-axial electrode-geometry DC glow discharge plasma

R Kumar, R Narayanan, A Prasad - Physics of Plasmas, 2014 - pubs.aip.org
Hysteresis in amplitudes of the self-excited oscillations of the floating potential and
discharge current is observed in an unmagnetized co-axial electrode-geometry DC glow …

Solid components separation from heterogeneous mixtures through turbulence control

V Nedeff, G Lazar, M Agop, L Eva, L Ochiuz… - Powder Technology, 2015 - Elsevier
Assuming that the particle movements of fluid–solid mixture occur along continuous but non-
differentiable curves, in the framework of scale relativity, the separation processes of the …

Plasma boundary induced electron-to-ion sheath transition in planar DC discharge

PK Barnwal, S Kar, R Narayanan, RD Tarey… - Physics of …, 2020 - pubs.aip.org
This paper reports parallel plate DC glow discharge plasma experiments showing significant
changes in the nature of the anode sheath when the plasma boundary is changed from a …

Elementary processes in the dynamics of two simultaneously excited fireballs in plasma

S Gurlui, O Niculescu, DG Dimitriu, C Ionita… - International Journal of …, 2014 - Elsevier
Two simultaneously excited fireballs in front of two positively biased electrodes immersed in
plasma were investigated by emission spectroscopy under different experimental conditions …

Order to chaos transition in plasma via non-differentiability: Experimental and Theoretical Investigations

M Agop, DG Dimitriu, L Vrajitoriu… - Journal of the Physical …, 2014 - journals.jps.jp
Experimental results are presented showing the competition between three scenarios of
transition to chaos (intermittency, quasi-periodicity, and cascade of sub-harmonic …