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[en] We apply an anisotropic version of the polymer reference interaction site model (PRISM) integral equation description of flexible polymers to analyze athermal liquid crystallinity. The polymers are characterized by a statistical segment length, σo, and by a physical hard-core thickness, d, that prevents the overlap of monomers on different chains. At small segment densities, ρ, the microscopic length scale d is irrelevant (as it must be in the universal semidilute regime), but becomes important in concentrated solutions and melts. Under the influence of the excluded volume interactions alone, the chains undergo a lyotropic, first-order isotropic-nematic transition at a concentration dependent upon the dimensionless ''aspect ratio,'' σo/d. The transition becomes weaker as d→0, becoming second order, as has been previously shown. We extend the theory to describe the transition of rigid, thin rods, and discuss the evolution of the anisotropic liquid structure in the ordered phase. (c) 2000 American Institute of Physics
Journal
[en] A possibility of exciting steady convective motions in isotropic and anisotropic liquids under the action of a force produced by the radiation pressure of an acoustic wave with a spatially periodic transverse intensity distribution is considered theoretically and experimentally. Cells both with two rigid boundaries and with one free surface are studied. The fluxes lead to reorientation of the director of liquid crystal in the case of anisotropic liquid. As a result, it acquires a periodic distribution in the transverse plane. The phenomenon can be utilized for the imaging of acoustic fields with micro watt power
Journal
Izvestiya National'noj Akademii Nauk Armenii. Fizika; ISSN 1025-5613; 
; CODEN IAAFF8; v. 46(1); p. 40-50
; CODEN IAAFF8; v. 46(1); p. 40-50
No abstract available
Journal
Physics Uspekhi; ISSN 1063-7869; ; v. 41(2); p. 171-175
; v. 41(2); p. 171-175
No abstract available
Source
Trufanov, A.A.; Sorokin, A.P. (eds.); Predpriyatie Goskorporatsii Rosatom AO Gosudarstvennyj Nauchnyj Tsentr Rossijskoj Federatsii - Fiziko-Ehnergeticheskij Inst. imeni A.I. Lejpunskogo, Obninsk (Russian Federation); 274 p; ISBN 978-5-906512-70-3; ; 2015; p. 21-22; Thermal physics of new generation reactors (Thermal physics-2015); Teplofizika reaktorov novogo pokoleniya (Teplofizika-2015); Obninsk (Russian Federation); 6-9 Oct 2015; 4 refs., 1 fig.
; 2015; p. 21-22; Thermal physics of new generation reactors (Thermal physics-2015); Teplofizika reaktorov novogo pokoleniya (Teplofizika-2015); Obninsk (Russian Federation); 6-9 Oct 2015; 4 refs., 1 fig.
[en] Liquid xenon presents interesting features as scintillation medium. Some results are discussed paying attention to physical applications. (orig.)
Journal
Nuclear Instruments and Methods in Physics Research. Section A; ISSN 0168-9002; ; CODEN NIMAE; v. 310(1/2); p. 150-153
; CODEN NIMAE; v. 310(1/2); p. 150-153
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