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 …

Spectral and electrical diagnosis of complex space-charge structures excited by a spherical grid cathode with orifice

RW Schrittwieser, C Ionita… - Physica …, 2017 - iopscience.iop.org
Optical emission spectroscopy and Langmuir probes were used to diagnose complex space-
charge structures that appear inside and around a spherical grid with orifice applying a …

Order to chaos transition studies in a DC glow discharge plasma by using recurrence quantification analysis

V Mitra, A Sarma, MS Janaki, ANS Iyenger… - Chaos, Solitons & …, 2014 - Elsevier
Recurrence quantification analysis (RQA) is used to study dynamical systems and to identify
the underlying physics when a system exhibits a transition due to changes in some control …

Dispersive effects in laser ablation plasmas

ŞA Irimiciuc, M Agop, P Nica, S Gurlui… - Japanese Journal of …, 2014 - iopscience.iop.org
The dynamics of transient plasmas generated by high-fluence nanosecond laser ablation
has been investigated by recording the ionic current with a Langmuir probe. Systematic …

Experimental and theoretical aspects of a laser produced plasma

ŞA Irimiciuc, I Mihăilă, M Agop - Physics of Plasmas, 2014 - pubs.aip.org
We report certain complex behaviors of a nanosecond Nd: YAG laser produced plasma on a
Ni target. For high laser fluences, a split in the transversal expansion plane along with …

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 …

Implications of Onicescu's informational energy in some fundamental physical models

M Agop, A Gavriluţ, E Rezuş - International Journal of Modern …, 2015 - World Scientific
Correlating Shannon's maximum informational entropy variational principle with the constant
value of Onicescu's informational energy, the uncertainty relations for canonical systems …

Methane coupling to ethylene and longer-chain hydrocarbons by low-energy electrical discharge in microstructured reactors

Y Miao, P Kreider, I Reddick… - Industrial & …, 2021 - ACS Publications
The direct conversion of methane to longer hydrocarbons, including alkanes and alkenes
(ie, olefins), is achieved with a high energy and atom efficiency through the use of low …

Informational non-differentiable entropy and uncertainty relations in complex systems

M Agop, A Gavriluţ, G Crumpei, B Doroftei - Entropy, 2014 - mdpi.com
Considering that the movements of complex system entities take place on continuous, but
non-differentiable, curves, concepts, like non-differentiable entropy, informational non …

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 …