Quasi-one-dimensional kinetic theory model of laser ablation of carbon

2009 ◽  
Vol 105 (9) ◽  
pp. 093534 ◽  
Author(s):  
Michael Shusser
Keyword(s):  
Laser Ablation ◽  
Kinetic Theory ◽  
Theory Model ◽  
One Dimensional

scholarly journals Analysis of one-dimensional electromagnetic wave transmission characteristics of plasma based on a kinetic theory model

2014 ◽  
Vol 63 (21) ◽  
pp. 214101
Author(s):  
Chen Wen-Bo ◽  
Gong Xue-Yu ◽  
Lu Xing-Qiang ◽  
Feng Jun ◽  
Liao Xiang-Bai ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Kinetic Theory ◽  
Theory Model ◽  
Wave Transmission ◽  
Transmission Characteristics ◽  
One Dimensional

scholarly journals A Kinetic Theory Model of the Dynamics of Liquidity Profiles on Interbank Networks

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 363
Author(s):  
Marina Dolfin ◽  
Leone Leonida ◽  
Eleonora Muzzupappa
Keyword(s):  
Kinetic Theory ◽  
Network Formation ◽  
Transition Probabilities ◽  
Stochastic Game ◽  
Theory Model ◽  
Point Of View ◽  
Network Efficiency ◽  
Modelling Framework ◽  
Wide Range ◽  
Complex Adaptive

This paper adopts the Kinetic Theory for Active Particles (KTAP) approach to model the dynamics of liquidity profiles on a complex adaptive network system that mimic a stylized financial market. Individual incentives of investors to form or delete a link is driven, in our modelling framework, by stochastic game-type interactions modelling the phenomenology related to policy rules implemented under Basel III, and it is exogeneously and dynamically influenced by a measure of overnight interest rate. The strategic network formation dynamics that emerges from the introduced transition probabilities modelling individual incentives of investors to form or delete links, provides a wide range of measures using which networks might be considered “best” from the point of view of the overall welfare of the system. We use the time evolution of the aggregate degree of connectivity to measure the time evolving network efficiency in two different scenarios, suggesting a first analysis of the stability of the arising and evolving network structures.

scholarly journals Synthesis of Porous ZnO Nanosheets and Carbon Nanotube Hybrids as Efficient Photocatalysts via Pulsed Laser Ablation

Catalysts ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 787 ◽  
Author(s):  
Yun Yeol Ryu ◽  
Taekyung Kim ◽  
HyukSu Han
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Charge Carriers ◽  
Two Dimensional ◽  
One Dimensional ◽  
Promising Strategy ◽  
Zno Nanosheets ◽  
Short Time ◽  
Laser Ablation Technique

Zinc oxide (ZnO) has attractive photocatalytic properties. However, the high recombination rate of the photo-excited charge carriers on this material often restricts application. Here, we report that hybridization of one dimensional (1D) carbon nanotubes (CNT) on two dimensional (2D) porous ZnO nanosheets (NS) can be a promising strategy to overcome some of the challenges of ZnO. Specifically, a pulsed laser ablation technique was utilized to hybridize 1D CNT with 2D porous ZnO NS in environmentally friendly as well as super-economic (short time, less than 10 min) conditions. The synthesized ZnO NS-CNT hybrids show a significantly enhanced photocatalytic activity for water splitting relative to their counterpart ZnO NS.

scholarly journals Kinetic equations and anisotropic hydrodynamics for quark and gluon fluids

2018 ◽  
Vol 182 ◽  
pp. 02079
Author(s):  
Ewa Maksymiuk
Keyword(s):  
Relaxation Time ◽  
Kinetic Theory ◽  
Quark Mass ◽  
Kinetic Equations ◽  
Baryon Number ◽  
Number Density ◽  
Time Approximation ◽  
One Dimensional ◽  
Relaxation Time Approximation ◽  
Good Agreement

The mixture of quark and gluon fluids is studied in a one-dimensional boostinvariant setup using the set of relativistic kinetic equations treated in the relaxation time approximation. Effects of a finite quark mass, non-zero baryon number density, and quantum statistics are discussed. Comparisons between the exact kinetic-theory results and anisotropic hydrodynamics predictions are performed and a very good agreement between the two are found.

scholarly journals CLASSICAL TO QUANTUM CROSSOVER IN HIGH-CURRENT NOISE OF ONE-DIMENSIONAL BALLISTIC WIRES

2001 ◽  
Vol 01 (04) ◽  
pp. C21-C33 ◽  
Author(s):  
FREDERICK GREEN ◽  
MUKUNDA P. DAS
Keyword(s):  
Kinetic Theory ◽  
Energy Loss ◽  
Experimental Techniques ◽  
Current Noise ◽  
Current Fluctuations ◽  
High Current ◽  
Strong Suppression ◽  
One Dimensional ◽  
Explicit Dynamics ◽  
Inelastic Energy Loss

Microscopic current fluctuations and conductance are inseparable. We present a unified kinetic theory of both quantized conductance and nonequilibrium noise in one-dimensional ballistic wires. We show that high-current ballistic fluctuations depend, directly and robustly, on carrier statistics. This is dramatically evident in the large noise peaks predicted to coincide with the quantized steps in the two-probe conductance. The outstanding features of nonlinear ballistic fluctuations are: (i) their observability by standard experimental techniques; (ii) their strong suppression by electron degenercy; (iii) their divergence in any model that ignores the explicit dynamics of dissipative scattering in the macroscopic leads; (iv) their numerical dominance over the noise predictions of the Landauer-Büttiker model. The nonequilibrium noise of hot ballistic carriers is strikingly sensitive to their inelastic energy loss on entering the leads. Uniquely and quantitatively, it characterizes the observed nonideality of quantized conductance.

scholarly journals Kinetic Theory Model for Ion Movement through Biological Membranes

1971 ◽  
Vol 11 (8) ◽  
pp. 664-674 ◽  
Author(s):  
Michael C. Mackey ◽  
Mildred L. McNeel
Keyword(s):  
Kinetic Theory ◽  
Biological Membranes ◽  
Theory Model ◽  
Ion Movement

scholarly journals Carbyne with finite length: The one-dimensional sp carbon

2015 ◽  
Vol 1 (9) ◽  
pp. e1500857 ◽  
Author(s):  
Bitao Pan ◽  
Jun Xiao ◽  
Jiling Li ◽  
Pu Liu ◽  
Chengxin Wang ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Molecular Orbital ◽  
Finite Length ◽  
Hexagonal Lattice ◽  
Alcohol Molecule ◽  
Laser Ablation In Liquid ◽  
One Dimensional ◽  
Triple Bonds ◽  
The One ◽  
Single Bonds

Carbyne is the one-dimensional allotrope of carbon composed of sp-hybridized carbon atoms. Definitive evidence for carbyne has remained elusive despite its synthesis and preparation in the laboratory. Given the remarkable technological breakthroughs offered by other allotropes of carbon, including diamond, graphite, fullerenes, carbon nanotubes, and graphene, interest in carbyne and its unusual potential properties remains intense. We report the first synthesis of carbyne with finite length, which is clearly composed of alternating single bonds and triple bonds, using a novel process involving laser ablation in liquid. Spectroscopic analyses confirm that the product is the structure of sp hybridization with alternating carbon-carbon single bonds and triple bonds and capped by hydrogen. We observe purple-blue fluorescence emissions from the gap between the highest occupied molecular orbital and the lowest unoccupied molecular orbital of carbyne. Condensed-phase carbyne crystals have a hexagonal lattice and resemble the white crystalline powder produced by drying a carbyne solution. We also establish that the combination of gold and alcohol is crucial to carbyne formation because carbon-hydrogen bonds can be cleaved with the help of gold catalysts under the favorable thermodynamic environment provided by laser ablation in liquid and because the unique configuration of two carbon atoms in an alcohol molecule matches the elementary entity of carbyne. This laboratory synthesis of carbyne will enable the exploration of its properties and applications.

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