Mössbauer study of Brownian motion of FeSnO3particles in liquid-crystal N-(p-ethoxybenzylidene)-p′-butylaniline (EBBA)

1979 ◽  
Vol 20 (1) ◽  
pp. 85-90 ◽  
Author(s):  
V. G. Bhide ◽  
M. C. Kandpal
Keyword(s):  
Brownian Motion ◽  
Liquid Crystal ◽  
Mössbauer Study

A Mössbauer Study of a Sn-119 Bearing Solute in an Ordered Smectic Liquid Crystal, at 77°K

1973 ◽  
Vol 20 (3-4) ◽  
pp. 349-371 ◽  
Author(s):  
David L. Uhrich ◽  
Ying Yen Hsu ◽  
D. L. Fishel ◽  
Jack M. Wilson
Keyword(s):  
Liquid Crystal ◽  
Mössbauer Study ◽  
Smectic Liquid Crystal

scholarly journals Effect of Collective Molecular Reorientations on Brownian Motion of Colloids in Nematic Liquid Crystal

Science ◽  
2013 ◽  
Vol 342 (6164) ◽  
pp. 1351-1354 ◽  
Author(s):  
T. Turiv ◽  
I. Lazo ◽  
A. Brodin ◽  
B. I. Lev ◽  
V. Reiffenrath ◽  
...  
Keyword(s):  
Brownian Motion ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal

Brownian motion retarded polymer-encapsulated liquid crystal droplets anchored over a patterned substrate via click chemistry

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27135-27139 ◽  
Author(s):  
Arun Prakash Upadhyay ◽  
Prasenjit Sadhukhan ◽  
Sudeshna Roy ◽  
Raj Ganesh S Pala ◽  
Sri Sivakumar
Keyword(s):  
Brownian Motion ◽  
Liquid Crystal ◽  
Click Chemistry ◽  
Triazole Ring ◽  
Patterned Substrate

Formation of a five-membered strong triazole ring to facilitate the highly stable anchoring of LC droplet encapsulated polymer capsules over a patterned substrate.

Integrated Fractional white Noise as an Alternative to Multifractional Brownian Motion

2007 ◽  
Vol 44 (02) ◽  
pp. 393-408 ◽  
Author(s):  
Allan Sly
Keyword(s):  
Stochastic Process ◽  
Brownian Motion ◽  
White Noise ◽  
Gaussian Process ◽  
Discrete Data ◽  
Hölder Exponent ◽  
Scaling Properties ◽  
Multifractional Brownian Motion ◽  
Local Properties

Multifractional Brownian motion is a Gaussian process which has changing scaling properties generated by varying the local Hölder exponent. We show that multifractional Brownian motion is very sensitive to changes in the selected Hölder exponent and has extreme changes in magnitude. We suggest an alternative stochastic process, called integrated fractional white noise, which retains the important local properties but avoids the undesirable oscillations in magnitude. We also show how the Hölder exponent can be estimated locally from discrete data in this model.

Brownian motion with quadratic killing and some implications

1986 ◽  
Vol 23 (04) ◽  
pp. 893-903 ◽  
Author(s):  
Michael L. Wenocur
Keyword(s):  
Brownian Motion ◽  
Weibull Distribution ◽  
Special Function ◽  
Function Theory ◽  
Killing Rate

Brownian motion subject to a quadratic killing rate and its connection with the Weibull distribution is analyzed. The distribution obtained for the process killing time significantly generalizes the Weibull. The derivation involves the use of the Karhunen–Loève expansion for Brownian motion, special function theory, and the calculus of residues.

Freeze-fracture TEM of the helical smectic A* phase

1992 ◽  
Vol 50 (1) ◽  
pp. 278-279
Author(s):  
K.J. Ihn ◽  
R. Pindak ◽  
J. A. N. Zasadzinski
Keyword(s):  
Liquid Crystal ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Freeze Fracture ◽  
Smectic Phase ◽  
Layer Spacing ◽  
Screw Dislocations ◽  
Smectic A ◽  
Smectic Phases ◽  
Discrete Amount

A new liquid crystal (called the smectic-A* phase) that combines cholesteric twist and smectic layering was a surprise as smectic phases preclude twist distortions. However, the twist grain boundary (TGB) model of Renn and Lubensky predicted a defect-mediated smectic phase that incorporates cholesteric twist by a lattice of screw dislocations. The TGB model for the liquid crystal analog of the Abrikosov phase of superconductors consists of regularly spaced grain boundaries of screw dislocations, parallel to each other within the grain boundary, but rotated by a fixed angle with respect to adjacent grain boundaries. The dislocations divide the layers into blocks which rotate by a discrete amount, Δθ, given by the ratio of the layer spacing, d, to the distance between grain boundaries, lb; Δθ ≈ d/lb (Fig. 1).

Attractive mode force microscopy of chiral liquid crystal surfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 268-269
Author(s):  
B.D. Terris ◽  
R. J. Twieg ◽  
C. Nguyen ◽  
G. Sigaud ◽  
H. T. Nguyen
Keyword(s):  
Liquid Crystal ◽  
Crystal Surfaces ◽  
Free Surfaces ◽  
Control Range ◽  
Force Microscopy ◽  
Liquid Crystal Films ◽  
Chiral Liquid Crystal ◽  
Crystal Films ◽  
Electrostatic Charging ◽  
And Shifts

We have used a force microscope in the attractive, or noncontact, mode to image a variety of surfaces. In this mode, the microscope tip is oscillated near its resonant frequency and shifts in this frequency due to changes in the surface-tip force gradient are detected. We have used this technique in a variety of applications to polymers, including electrostatic charging, phase separation of ionomer surfaces, and crazing of glassy films.Most recently, we have applied the force microscope to imaging the free surfaces of chiral liquid crystal films. The compounds used (Table 1) have been chosen for their polymorphic variety of fluid mesophases, all of which exist within the temperature control range of our force microscope.

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