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nematic liquid crystal

Blow-up criteria for 3D nematic liquid crystal models in a bounded domain

Blow-up criteria for 3D nematic liquid crystal models in a bounded domain

... In this paper we prove some blow-up criteria for two 3D density-dependent nematic liquid crystal models in a bounded domain.. MSC: 35Q30; 76D03; 76D09.[r] ...

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Flexoelectric polarisation effects in nematic liquid crystal phase gratings

Flexoelectric polarisation effects in nematic liquid crystal phase gratings

... to a non-zero angle θ(x, z, t) with the x-direction. This occurs because the position of the fringes are displaced when the optical path length in one arm of the interferometer changes. The material E7 is a positive ...

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Capacitive Interdigital Sensor with Inhomogeneous Nematic Liquid Crystal Film

Capacitive Interdigital Sensor with Inhomogeneous Nematic Liquid Crystal Film

... Abstract—The performance of capacitive interdigital sensors involved with anisotropic and inhomogeneous nematic liquid crystal (LC) film is investigated. These sensors have potential applications in ...

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Calculation of flexoelectric coefficients for a nematic liquid crystal by atomistic simulation

Calculation of flexoelectric coefficients for a nematic liquid crystal by atomistic simulation

... Atomistic computer simulation provides a powerful tool for the investigation of the properties of soft condensed mat- ter systems. Of particular interest has been the progress made in the simulation of complicated ...

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Nematic liquid crystal director structures in rectangular regions

Nematic liquid crystal director structures in rectangular regions

... of nematic liquid crystal subject to weak anchoring on the sides of the ...analyze nematic equilibria in the well without the need to exclude point defects at the corners, as done in previous ...

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Shear-driven and pressure-driven flow of a nematic liquid crystal in a slowly varying channel

Shear-driven and pressure-driven flow of a nematic liquid crystal in a slowly varying channel

... non-flow-aligning nematic liquid crystal with the director within the plane of shear is possible when the shear rate is low enough and the boundary conditions are ...calamitic liquid crystals ...

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Miscibility Study of Nematic Liquid Crystal with Cholesteric Liquid crystal

Miscibility Study of Nematic Liquid Crystal with Cholesteric Liquid crystal

... We studied the miscibility of Nematic liquid crystal with Cholesteric liquid crystal, with increasing concentration of Cholesteryl Chloride in the mixtures. The transition temperatures ...

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A note on regularity criterion for 3D compressible nematic liquid crystal flows

A note on regularity criterion for 3D compressible nematic liquid crystal flows

... Here r is the density, u is the fluid velocity and d represents the macroscopic aver- age of the nematic liquid crystal orientation field, p(r) := ar g is the pressure with posi- tive constants a ...

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IR-LD spectroscopy of benzil oriented as solution in nematic liquid crystal and melted polycrystalline solid sample

IR-LD spectroscopy of benzil oriented as solution in nematic liquid crystal and melted polycrystalline solid sample

... in nematic liquid crystal and as melted poly- crystalline solid sample, using the orientation ...the crystal field effects in solid-state on the ...

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Microlenses immersed in nematic liquid crystal with electrically controllable focal length

Microlenses immersed in nematic liquid crystal with electrically controllable focal length

... A liquid crystal cell was constructed using a second ITO coated glass ...a nematic liquid crystal with positive dielectric anisotropy (E7, Merck), ...the liquid crystal ...

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Dynamics of Discs in a Nematic Liquid Crystal

Dynamics of Discs in a Nematic Liquid Crystal

... In Chapter 3 we used the algorithm from Chapter 2 to simulate the behavior of a sin- gle disc immersed in a nematic liquid crystal under the action of a weak rotating magnetic field. Comparison of ...

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Dielectric Behaviour of Pure and Dye Doped Nematic Liquid Crystal BKS/B07

Dielectric Behaviour of Pure and Dye Doped Nematic Liquid Crystal BKS/B07

... and liquid crystals (LC) are well es- tablished materials for photonic and non-linear optical device applications because of their optical non linearity and very rapid optical response ...the liquid ...

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Small amplitude oscillatory flows of nematic liquid crystal polymers

Small amplitude oscillatory flows of nematic liquid crystal polymers

... molecule nematic liquid crystals have been studied by Burghardt (Burghardt, 1991) and de Andrade Lima and Rey (de Andrade Lima and Rey, 2006) using Leslie-Ericksen theory under the single Frank constant ...

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Characterization of carbon nanotube–thermotropic nematic liquid crystal composites

Characterization of carbon nanotube–thermotropic nematic liquid crystal composites

... Abstract. Dispersions of carbon nanotubes (CNT) in liquid crystals (LC) have attracted a lot of attention due to their unique properties and possible applications in photonics and electronics. However, the ...

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Nematic liquid crystal alignment on chemical patterns

Nematic liquid crystal alignment on chemical patterns

... using the approach described above. When the diameter of the circles was 20 µm the ordered fluid associated with each circle generally contained nematic threads (figure 4 a), similar to the alignment seen in ...

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Squeezing a drop of nematic liquid crystal with strong elasticity effects

Squeezing a drop of nematic liquid crystal with strong elasticity effects

... is associated with a discontinuity in the director orientation and can lead to point or line defects. At such defects a disordering transition occurs and a director description of the nematic is not valid [12, ...

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Nematic liquid crystal alignment on stripe patterned substrates

Nematic liquid crystal alignment on stripe patterned substrates

... bulk liquid crystal (LC) is imposed by its confining substrates is called anchoring ...bistable nematic [2] and post-aligned bistable nematic [3] device ...

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A Regularity Criterion for the Nematic Liquid Crystal Flows

A Regularity Criterion for the Nematic Liquid Crystal Flows

... Xin, “On the regularity of weak solutions to the magnetohydrodynamic equations,” Journal of Differential Equations, vol.. Zhou, “Remarks on regularities for the 3D MHD equations,” Discret[r] ...

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Flexoelectricity in an oxadiazole bent-core nematic liquid crystal

Flexoelectricity in an oxadiazole bent-core nematic liquid crystal

... our experimentally determined flexoelectric coefficients with those calculated using a computational methodol- ogy. Such an approach has successfully been applied to the elastic constants of several different bent-core ...

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Field-induced refractive index variation in the dark conglomerate phase for polarization-independent switchable liquid crystal lenses.

Field-induced refractive index variation in the dark conglomerate phase for polarization-independent switchable liquid crystal lenses.

... in nematic liquid crystal based lenses, in this case the change in refractive index is electric-field driven rather than voltage ...and liquid crystal contact lenses [17, ...shaped ...

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