Structural properties of the self‐conjugate SU(3) tensor operators

1977 ◽  
Vol 18 (9) ◽  
pp. 1883-1891 ◽  
Author(s):  
M. A. Lohe ◽  
L. C. Biedenharn ◽  
J. D. Louck
Keyword(s):  
Structural Properties ◽  
The Self ◽  
Tensor Operators

Molecular-Dynamics Analysis of the Structural Properties of Silica during Cooling

2008 ◽  
Vol 139 ◽  
pp. 101-106 ◽  
Author(s):  
Byoung Min Lee ◽  
Shinji Munetoh ◽  
Teruaki Motooka ◽  
Yeo Wan Yun ◽  
Kyu Mann Lee
Keyword(s):  
Molecular Dynamics ◽  
Glass Transition ◽  
Transition Temperature ◽  
Structural Properties ◽  
Diffusion Coefficients ◽  
The Self ◽  
Dynamics Analysis ◽  
Self Diffusion ◽  
Dynamics Simulations ◽  
Potential Parameters

The structural properties of SiO2 liquid during cooling have been investigated by molecular dynamics simulations. The interatomic forces acting on the particles are calculated by the modified Tersoff potential parameters. The glass transition temperature and structural properties of the resulting SiO2 system at various temperatures have been investigated. The fivefold coordinations of Si and threefold coordinations of O atoms were observed, and the coordination defects of system decrease with decreasing temperature up to 17 % at 300 K. The self-diffusion coefficients for Si and O atoms drop to almost zero below 3000 K. The structures were distorted at high temperatures, but very stable atomic network persisted up to high temperature in the liquid state.

Dispersion of TiO2 Nanopowder in the PMMA Matrix Prepared by Sonication-Solution Casting Method

2013 ◽  
Vol 667 ◽  
pp. 115-121
Author(s):  
N.N. Hafizah ◽  
Mohamed Zahidi Musa ◽  
Mohamad Hafiz Mamat ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Tio2 Nanoparticles ◽  
Structural Properties ◽  
The Self ◽  
Nanocomposite Films ◽  
Solution Casting ◽  
Casting Method ◽  
Pmma Matrix ◽  
Solution Casting Method ◽  
Tio2 Nanopowder

This paper discussed on the structural properties of the PMMA/TiO2 nanocomposite films prepared using sonication-solution casting method. The structural properties of the nanocomposite films were compared by mixing the self-prepared TiO2 (~12 nm) and the commercially available TiO2 (25 nm) in the PMMA. The well dispersion of self-prepared TiO2 nanopowder was observed in the FESEM micrograph. XRD results show that the self-prepared TiO2 nanopowder decrease the crystallinity of the nanocomposite. Further, FTIR reveals that the interaction between the PMMA and TiO2 nanoparticles were detected.

scholarly journals Molecular dynamics study of diffusion of xenon in water at different temperatures

2018 ◽  
Vol 16 (2) ◽  
Author(s):  
Niraj Kumar ◽  
Narayan Prasad Adhikari
Keyword(s):  
Molecular Dynamics ◽  
Diffusion Coefficient ◽  
Structural Properties ◽  
The Self ◽  
Dynamics Simulation ◽  
Velocity Autocorrelation Function ◽  
Arrhenius Behavior ◽  
Self Diffusion ◽  
Different Temperatures ◽  
Self Diffusion Coefficient

Molecular Dynamics simulation was performed using 2 xenon atoms as solute and 300 water molecules as solvent. We have studied the structural properties as well as transport property. As structural properties, we have determined the radial distribution function (RDF) of xenon-xenon, xenon-water, and water-water interactions. Study of RDF of xenon-xenon and oxygen-oxygen interactions of water shows that there is hydrophobic behavior of xenon in the presence of water. We have studied the self diffusion coefficient of xenon, water, and mutual diffusion coefficients of xenon in water. The self diffusion coefficient of xenon was estimated using both mean-squared displacement (MSD) and velocity autocorrelation function (VACF), while only MSD was used for water. The temperature dependence of the diffusion coefficient of xenon and water were found to follow the Arrhenius behavior. The activation energies obtained are 12.156 KJ/mole with MSD and 14.617 KJ/mole with VACF in the temperature range taken in this study.

APPLYING THE SOM MODEL TO TEXT CLASSIFICATION ACCORDING TO REGISTER AND STYLISTIC CONTENT

2003 ◽  
Vol 13 (01) ◽  
pp. 1-11 ◽  
Author(s):  
GEORGE TAMBOURATZIS ◽  
NIKOLAOS HAIRETAKIS ◽  
STELLA MARKANTONATOU ◽  
GEORGE CARAYANNIS
Keyword(s):  
Data Mining ◽  
Structural Properties ◽  
Statistical Methods ◽  
Text Classification ◽  
The Self ◽  
Classification Method ◽  
Self Organizing Map ◽  
Greek Language ◽  
Textual Data ◽  
Som Model

We report on the application of the Self-Organizing Map (SOM) classification method to the task of categorizing texts according to their register and the style of their author. The SOM has been selected as its performance in various data-mining applications has been found to be highly successful. Here, the method is evaluated against the task of clustering textual data which are corpora of texts written in the Greek language; the parameters used depict linguistically important structural properties of the texts. The experiments reported indicate that the SOM results are equivalent to those generated by statistical methods.

Evolving Mobile Robots Able to Display Collective Behaviors

2003 ◽  
Vol 9 (3) ◽  
pp. 255-267 ◽  
Author(s):  
Gianluca Baldassarre ◽  
Stefano Nolfi ◽  
Domenico Parisi
Keyword(s):  
Mobile Robots ◽  
Structural Properties ◽  
Collective Behavior ◽  
Single Unit ◽  
The Self ◽  
Powerful Method ◽  
Collective Behaviors ◽  
Primitive Forms ◽  
Quantitative Indexes ◽  
Light Target

We present a set of experiments in which simulated robots are evolved for the ability to aggregate and move together toward a light target. By developing and using quantitative indexes that capture the structural properties of the emerged formations, we show that evolved individuals display interesting behavioral patterns in which groups of robots act as a single unit. Moreover, evolved groups of robots with identical controllers display primitive forms of situated specialization and play different behavioral functions within the group according to the circumstances. Overall, the results presented in the article demonstrate that evolutionary techniques, by exploiting the self-organizing behavioral properties that emerge from the interactions between the robots and between the robots and the environment, are a powerful method for synthesizing collective behavior.

Molecular dynamics simulations of self-assembled peptide amphiphile based cylindrical nanofibers

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66582-66590 ◽  
Author(s):  
E. Deniz Tekin
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Structural Properties ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
Peptide Amphiphile ◽  
Self Assembled ◽  
Dynamics Simulations

We carried out united-atom molecular dynamics simulations to understand the structural properties of peptide amphiphile (PA)-based cylindrical nanofibers and the factors that play a role in the “Self-Assembly” process on some specific nanofibers.

Problem behavior in autism spectrum disorders: A paradigmatic self-organized perspective of network structures

2019 ◽  
Vol 42 ◽  
Author(s):  
Lucio Tonello ◽  
Luca Giacobbi ◽  
Alberto Pettenon ◽  
Alessandro Scuotto ◽  
Massimo Cocchi ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Problem Behaviors ◽  
Autism Spectrum ◽  
The Self ◽  
Network Structures ◽  
Self Organized ◽  
Critical Equilibrium ◽  
Self Organized Criticality ◽  
Acute Agitation ◽  
Spectrum Disorders

AbstractAutism spectrum disorder (ASD) subjects can present temporary behaviors of acute agitation and aggressiveness, named problem behaviors. They have been shown to be consistent with the self-organized criticality (SOC), a model wherein occasionally occurring “catastrophic events” are necessary in order to maintain a self-organized “critical equilibrium.” The SOC can represent the psychopathology network structures and additionally suggests that they can be considered as self-organized systems.

The Nature of Rapidly Extracted Phycocyanin from the Blue-Green Alga Plectonema Boryanum

1971 ◽  
Vol 29 ◽  
pp. 366-367
Author(s):  
M. Kessel ◽  
R. MacColl
Keyword(s):  
Self Assembly ◽  
Analytical Ultracentrifugation ◽  
Uranyl Acetate ◽  
The Self ◽  
Major Protein ◽  
Subunit Structure ◽  
Blue Green Alga ◽  
Thin Sections ◽  
Blue Green Algae ◽  
Cacodylate Buffer

The major protein of the blue-green algae is the biliprotein, C-phycocyanin (Amax = 620 nm), which is presumed to exist in the cell in the form of distinct aggregates called phycobilisomes. The self-assembly of C-phycocyanin from monomer to hexamer has been extensively studied, but the proposed next step in the assembly of a phycobilisome, the formation of 19s subunits, is completely unknown. We have used electron microscopy and analytical ultracentrifugation in combination with a method for rapid and gentle extraction of phycocyanin to study its subunit structure and assembly.To establish the existence of phycobilisomes, cells of P. boryanum in the log phase of growth, growing at a light intensity of 200 foot candles, were fixed in 2% glutaraldehyde in 0.1M cacodylate buffer, pH 7.0, for 3 hours at 4°C. The cells were post-fixed in 1% OsO4 in the same buffer overnight. Material was stained for 1 hour in uranyl acetate (1%), dehydrated and embedded in araldite and examined in thin sections.

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