The leading role of the steric hindrance effect and dipole–dipole interaction in superlattice nanostructures formed via the assembly of discotic liquid crystals

2018 ◽  
Vol 42 (24) ◽  
pp. 20087-20094 ◽  
Author(s):  
Zhenhu Zhang ◽  
Huanzhi Yang ◽  
Jingze Bi ◽  
Ao Zhang ◽  
Yi Fang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Steric Hindrance ◽  
Dipole Interaction ◽  
Discotic Liquid Crystals ◽  
Leading Role ◽  
Dipole Interactions

The effect of steric hindrance and dipole–dipole interactions are a prerequisite for the formation of ordered plastic phases.

Charge Dissociation at Interfaces between Discotic Liquid Crystals: The Surprising Role of Column Mismatch

2014 ◽  
Vol 136 (7) ◽  
pp. 2911-2920 ◽  
Author(s):  
Julien Idé ◽  
Raphaël Méreau ◽  
Laurent Ducasse ◽  
Frédéric Castet ◽  
Harald Bock ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals

2D Organic Superlattice Promoted via Combined Action of π–π Stacking and Dipole–Dipole Interaction in Discotic Liquid Crystals

2017 ◽  
Vol 121 (31) ◽  
pp. 7519-7525 ◽  
Author(s):  
Wanying Zhang ◽  
Shuaifeng Zhang ◽  
Zhenhu Zhang ◽  
Huanzhi Yang ◽  
Ao Zhang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Dipole Interaction ◽  
Discotic Liquid Crystals ◽  
Π Stacking ◽  
Combined Action

Homeotropic and Planar Alignment of Discotic Liquid Crystals: The Role of the Columnar Mesophase

2009 ◽  
Vol 21 (24) ◽  
pp. 5867-5874 ◽  
Author(s):  
Guillaume Schweicher ◽  
Gabin Gbabode ◽  
Florence Quist ◽  
Olivier Debever ◽  
Nicolas Dumont ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals

Molecular dynamics in weakly polar nematic liquid crystal doped with dye

2011 ◽  
Vol 89 (6) ◽  
pp. 661-665 ◽  
Author(s):  
Satya Prakash Yadav ◽  
Kamal Kumar Pandey ◽  
Abhishek Kumar Misra ◽  
Sudhaker Dixit ◽  
Rajiv Manohar
Keyword(s):  
Molecular Dynamics ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Intermolecular Interaction ◽  
Nematic Liquid Crystal ◽  
Molecular Orientation ◽  
Nematic Liquid Crystals ◽  
Dipole Interaction ◽  
Molecular Arrangement

Our intention in the present work is to find out the role of dye in the molecular orientation of the weakly polar nematic liquid crystal D6AOB. The doping of a dye introduces a disturbance in the molecular arrangement of the nematic liquid crystal molecules. However, this disturbance is found to be sensitive to the concentration of the dye dispersed in the nematic liquid crystal. It is found that orientation in the dyed nematic liquid crystal is less ordered than the orientation in the pure nematic liquid crystals. This behavior has been explained on the basis of intermolecular interaction, i.e., dipole–dipole interaction.

2D superlattice nanostructures formed via self-assembly of discotic liquid crystals dominated by long range dipole–dipole interaction

2018 ◽  
Vol 6 (21) ◽  
pp. 5597-5600 ◽  
Author(s):  
Zhenhu Zhang ◽  
Huanzhi Yang ◽  
Ao Zhang ◽  
Jingze Bi ◽  
Yuwen Feng ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Diffraction Pattern ◽  
Long Range ◽  
Self Assembly ◽  
Dipole Interaction ◽  
Discotic Liquid Crystals ◽  
X Ray Diffraction ◽  
X Ray

2D organic superlattice nanostructures were formed via hierarchical self-assembly of discotic liquid crystals, which were demonstrated by X-ray diffraction pattern and TEM.

Ordering in discotic liquid crystals

1984 ◽  
Vol 45 (4) ◽  
pp. 709-714 ◽  
Author(s):  
E.I. Kats ◽  
M. I. Monastyrsky
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals

УКРАЇНОЗНАВЧИЙ ОСВІТНІЙ ЧИННИК В УМОВАХ СУЧАСНОЇ УКРАЇНСЬКОЇ МАСОВОЇ КУЛЬТУРИ

2019 ◽  
pp. 22-29
Author(s):  
Н. В. Фрадкіна
Keyword(s):  
Mass Culture ◽  
Personal Development ◽  
Negative Impact ◽  
Educational Process ◽  
Point Of View ◽  
Character Trait ◽  
Main Task ◽  
Leading Role ◽  
The Individual

The purpose and tasks of the work are to analyze the contemporary Ukrainian mass culture in terms of its value and humanistic components, as well as the importance of cultural studies and Ukrainian studies in educational disciplines for the formation of a holistic worldview of modern youth.Analysis of research and publications. Scientists repeatedly turned to the problems of the role of spirituality in the formation of society and its culture. This problem is highlighted in the publications by O. Losev, V. Lytvyn, D. Likhachev, S. Avierintsev, M. Zakovych, I. Stepanenko and E. Kostyshyn.Experts see the main negative impact of mass culture on the quality approach, which determines mass culture through the market, because mass culture, from our point of view, is everything that is sold and used in mass demand.One of the most interesting studies on this issue was the work by the representatives of Frankfurt School M. Horkheimer and T. Adorno «Dialectics of Enlightenment» (1947), devoted to a detailed analysis of mass culture. Propaganda at all socio-cultural levels in the form is similar in both totalitarian and democratic countries. It is connected, according to the authors, with the direction of European enlightenment. The tendency to unify people is a manifestation of the influence of mass culture, from cinema to pop. Mass culture is a phenomenon whose existence is associated with commerce (accumulation in any form – this is the main feature of education), in general, the fact that it exists in this form is related to the direction of the history of civilization.Modern mass culture, with its externally attractive and easily assimilated ideas and symbols, appealing to the trends of modern fashion, becomes a standard of prestigious consumption, does not require intense reflection, allows you to relax, distract, not teach, but entertains, preaches hedonism as the main spiritual value. And as a consequence, there are socio-cultural risks: an active rejection of other people, which leads to the formation of indifference; cruelty as a character trait; increase of violent and mercenary crime; increase in the number of alcohol and drug addicts; anti-patriotism; indifference to the values of the family and as a result of social orphanhood and prostitution.Conclusions, perspectives of research. Thus, we can conclude that modern Ukrainian education is predominantly formed by the values of mass culture. Namely, according to the «Dialectic» by Horkheimer and Adorno, «semi-enlightenment becomes an objective spirit» of our modern society.It is concluded that only high-quality education can create the opposite of the onset of mass culture and the destruction of spirituality in our society. It is proved that only by realizing the importance of cultivating disciplines in the educational process and the spiritual upbringing of the nation, through educational reforms, humanitarian knowledge will gradually return to student audiences.Formation of youth occurs under the influence of social environment, culture, education and self-education. The optimal combination of these factors determines both the process of socialization itself and how successful it will be. In this context, one can see the leading role of education and upbringing. It turns out that the main task of modern education is to spread its influence on the development of spiritual culture of the individual, which eventually becomes a solid foundation for the formation of the individual. Such a subject requires both philosophical and humanitarian approaches in further integrated interdisciplinary research, since the availability of such research will provide the theoretical foundation for truly modern educational and personal development.

A reconnaissance of tropical resources during Revolutionary years: the role of the Paris Museum d'Histoire Naturelle

1991 ◽  
Vol 18 (3) ◽  
pp. 333-362 ◽  
Author(s):  
MADELEINE LY-TIO-FANE
Keyword(s):  
South Africa ◽  
Natural History ◽  
Scientific Research ◽  
Extensive Literature ◽  
War Of Independence ◽  
Leading Role ◽  
Scientific Principles ◽  
Set Up ◽  
Joseph Ii

SUMMARY The recent extensive literature on exploration and the resulting scientific advances has failed to highlight the contribution of Austrian enterprise to the study of natural history. The leading role of Joseph II among the neutral powers which assumed the carrying trade of the belligerents during the American War of Independence, furthered the development of collections for the Schönbrunn Park and Gardens which had been set up on scientific principles by his parents. On the conclusion of peace, Joseph entrusted to Professor Maerter a world-encompassing mission in the course of which the Chief Gardener Franz Boos and his assistant Georg Scholl travelled to South Africa to collect plants and animals. Boos pursued the mission to Isle de France and Bourbon (Mauritius and Reunion), conveyed by the then unknown Nicolas Baudin. He worked at the Jardin du Roi, Pamplemousses, with Nicolas Cere, or at Palma with Joseph Francois Charpentier de Cossigny. The linkage of Austrian and French horticultural expertise created a situation fraught with opportunities which were to lead Baudin to the forefront of exploration and scientific research as the century closed in the upheaval of the Revolutionary Wars.

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