scholarly journals Continuum percolation in colloidal dispersions of hard nanorods in external axial and planar fields

Soft Matter ◽  
2021 ◽  
Author(s):  
Ilian Pihlajamaa ◽  
René de Bruijn ◽  
Paul van der Schoot
Keyword(s):  
Colloidal Particles ◽  
Theoretical Study ◽  
Colloidal Dispersions ◽  
Continuum Percolation ◽  
Numerical Treatment ◽  
Self Consistent

We present a theoretical study on continuum percolation of rod-like colloidal particles in the presence of axial and planar quadrupole fields. Our work is based on a self-consistent numerical treatment...

A Theoretical Study on the Pressure Dependence of the Band Gap in ${\rm A^{I}B^{III}C^{VI}_2}$ Compounds

1997 ◽  
Vol 11 (16) ◽  
pp. 1959-1967 ◽  
Author(s):  
R. Asokamani ◽  
R. Mercy Amirthakumari ◽  
G. Pari
Keyword(s):  
Theoretical Study ◽  
Energy Gap ◽  
Ambient Pressure ◽  
Chalcopyrite Structure ◽  
Deformation Potential ◽  
Equilibrium Lattice Constant ◽  
Self Consistent ◽  
Direct Energy ◽  
Experimental Values ◽  
Direct Energy Gap

The self-consistent scalar relativistic band structure for AgGaX 2 (X = S, Se, Te) performed in chalcopyrite structure using the TBLMTO method at various pressures are reported here. Empty spheres were introduced in the calculations as the chalcopyrite structure is loosely packed. From the total energy calculations, the equilibrium lattice constant and the bulk modulus at zero pressure were calculated and these values agree well with the reported experimental values. All these compounds are found to have direct energy gap at ambient pressure with the gap widening with increased pressures which are in agreement with the experimental results. The deformation potential, dE g /dP for the compounds are also reported here. The metallisation volumes are calculated and the possibility of observing superconductivity in these compounds is discussed.

Study on the Relationship between Supervisors' Remuneration in Listed Companies and Tobacco Control Measures

2021 ◽  
Vol 7 (6) ◽  
pp. 5074-5086
Author(s):  
Miao Wang ◽  
Pengfei Li
Keyword(s):  
Theoretical Study ◽  
Company Law ◽  
Theory And Practice ◽  
Control Measures ◽  
Clear Understanding ◽  
Corporation Governance ◽  
Legal Principle ◽  
Self Consistent ◽  
The Difference ◽  
The Relationship

Objectives: At present, the theoretical study on supervisors' remuneration under the Company Law is still too principled, and many "chaos" occur in the remuneration practices for supervisors. First, the lack of clear understanding of the incentive function and institutional specificities of supervisors' remuneration results in many problems in the application of supervisors' remuneration in practice, as well as the ignoration of the Board of Supervisors in corporation governance. Second, rather than reaching the intended effect, the legislative approach of authorized "blank" intentionally adopted under the Company Law leaves an inducement for the ineffective supervision of supervisors in practice. Third, there is not only a lack of theoretically self-consistent discussion on the special problems of concurrent supervisors and employee supervisors' remuneration, but also a divorce of the institutional structure and application from good expectations. If the research background of the problem is placed in "tobacco regulatory science", it will be found that there is no inevitable connection between supervisors' compliance expectations and remuneration, but mainly depends on the provisions of legislation. Going back and forth between theory and practice of supervisors' remuneration, this paper combs and interprets the issue of supervisors' remuneration from the perspective of the legislative provisions and theoretical study under the Company Law, and analyzes the difference between the reality and the necessity of the Company Law with respect to the issue of supervisors' remuneration in the light of the legal principle of the Company Law, with the view to improvement of the rules of the Company Law.

Synthesis of Vanadium Oxide Colloidal Dispersions for Antistatic Coatings

1996 ◽  
Vol 432 ◽  
Author(s):  
Eric.D. Morrison
Keyword(s):  
Vanadium Oxide ◽  
Conduction Mechanism ◽  
Colloidal Particles ◽  
Small Polaron ◽  
Electronic Conductivity ◽  
Colloidal Dispersions ◽  
Thin Layers ◽  
Properties Of Coatings ◽  
Polaron Hopping ◽  
Dispersed Particles

AbstractVanadium oxide deposited in thin layers from aqueous colloidal dispersions exhibits electronic conductivity by a small polaron hopping conduction mechanism. Conductivity and static dissipative properties of coatings are unaffected by changes in humidity. Because vanadium oxide is highly colored, the deposition of effective antistatic coatings which are transparent and colorless requires that the percolative (networking forming) properties of the colloidal particles be maximized. The percolative properties of the colloid are strongly influenced by morphology of the dispersed particles and the extent to which they are well dispersed in the aquasol. These properties are determined by the synthetic route to the colloid. Vanadium oxide is the most potent antistatic agent known and has been found to provide antistatic properties even when as little as 1 milligram per square meter is used.

Experimental and Self-Consistent-Field Theoretical Study of Styrene Block Copolymer Self-Adhesive Materials

2004 ◽  
Vol 37 (13) ◽  
pp. 5093-5109 ◽  
Author(s):  
Kostas Ch. Daoulas ◽  
Doros N. Theodorou ◽  
Alexandra Roos ◽  
Costantino Creton
Keyword(s):  
Block Copolymer ◽  
Theoretical Study ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Adhesive Materials

Bonding of Guest Molecules in the Tubes of Nanoporous Cetineite Crystals

2000 ◽  
Vol 658 ◽  
Author(s):  
E.E. Krasovskii ◽  
O. Tiedje ◽  
S. Brodersen ◽  
W. Schattke ◽  
F. Starrost ◽  
...  
Keyword(s):  
Theoretical Study ◽  
Optical Excitation ◽  
Electronic Structure Calculations ◽  
Photoelectron Spectra ◽  
Tubular Structures ◽  
Guest Molecules ◽  
Augmented Plane Wave ◽  
Self Consistent ◽  
Excitation Processes ◽  
Structure Calculations

ABSTRACTA theoretical study of the optical excitation processes in cetineites is presented. This new exciting class of crystals with tubular structures displays photoconductivity, which strongly depends on the presence of guest molecules within the tubes. Based on self-consistent electronic structure calculations we present calculated dielectric function and photoelectron spectra of the (Na;Se) cetineite with the tube fllled with different guest molecules. Calculations are performed with the extended linear augmented plane wave kp method. The configuration and the arrangement of the filling molecules is derived from available crystallographic data and from heuristic arguments on chemical binding.

scholarly journals Field induced manipulation of fullerene molecules with the STM: a self-consistent theoretical study

1995 ◽  
Vol 87-88 ◽  
pp. 390-397 ◽  
Author(s):  
M. Devel ◽  
C. Girard ◽  
C. Joachim ◽  
O.J.F. Martin
Keyword(s):  
Theoretical Study ◽  
Self Consistent

Determining the Morphology and the Interaction Between Terminally-Anchored Polymer Layers

1996 ◽  
Vol 461 ◽  
Author(s):  
A. C. Balazs ◽  
C. Singh
Keyword(s):  
Field Theory ◽  
Colloidal Particles ◽  
The Other ◽  
Two Dimensional ◽  
Planar Surfaces ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Energy Of Interaction ◽  
Self Consistent Field Theory

ABSTRACTUsing a two dimensional self-consistent field theory, we investigate the interactions between two planar surfaces that are coated with terminally-anchored homopolymers. One surface is coated with A chains and the other is covered with B homopolymers. The chains are grafted at low densities and the B polymers are chosen to be solvophobic, while the A chains are relatively solvophilic. We determine the morphology of the layers and the energy of interaction asthe surfaces are compressed. Our results provide guidelines for controlling the interaction between polymer-coated colloidal particles.

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