Using the Parsons-Lee theory, we examined effect of shape anisotropy and wall-to-wall separation (H) on phase behavior hard parallelepiped rods with dimensions L, D, D ($L>D$) in such narrow slitlike pores which only one homeotropic layer can form. The structures, including biaxiality, planar nematic layering transition as well to homeotropic, were studied for some separations range $2.5D\en...

We show that anisotropic planar anti-guiding waveguide structures with two radiation channels toward the surrounding cladding materials can support unidirectional guided resonances (UGRs), where is canceled in one of and redirected into other. Their formation subtle as it requires breaking so-called polar anisotropy-symmetry structures. Then, UGRs appear at specific wavelengths light propagatio...

IV. Implications of Field-Sweep 36 A. Complications for S=3/2 (4) 36 B. Linewidth Anisotropy 39 C. Introduction to Frequency-dependent or (/-strain broadening 40 V. Low Frequency EPR 41 VI. Computer Simulations Inclusion of Strain Broadening 43 A. Intercalation of Planar copper(II) complexes in DNA (26) 48 B. Generalized ^-strain Broadening 49 C. Use of the Joint Density Function 50 D. Strategi...

The influence of small ferroelectric BaTiO3 particles on the planar-homeotropic transition threshold voltage in smectic A liquid crystals consisting of p-nitrophenyl p-decyloxybenzoate and 4-cyano-4'-pentylbiphenyl were studied by using capacitance-voltage (C-V) measurements. It was shown that the BaTiO3 particles significantly reduce the threshold voltage. The obtained result is explained by t...

We study electroconvection patterns that appear above the splay Fréedericksz transition in a bent-core nematic liquid crystal with positive dielectric and negative conductivity anisotropy. In contrast to most of the previously observed convection rolls in nematics, they are not shadowgraph patterns at onset. Unusual effects are observed like a transition between longitudinal and normal rolls, c...

Using neutron diffraction, 170Yb Mössbauer and muon spin relaxation spectroscopies, we have examined the pyrochlore Yb2Ti2O7, where the Yb3+S' = 1/2 ground state has planar anisotropy. Below approximately 0.24 K, the temperature of the known specific-heat lambda transition, there is no long range magnetic order. We show that the transition corresponds to a first-order change in the fluctuation ...

INTRODUCTION: PROPELLER (Periodically rotated overlapping parallel lines with enhanced reconstruction [1]) based on echo planar imaging (EPI) [2,3] can acquire wider blades with increased time efficiency compared to fast-spin echo (FSE)-based PROPELLER [4]. However, EPI-based sequences suffer from Nyquist ghosts arising primarily from eddy currents and gradient anisotropy [5], thus requiring ph...

BACKGROUND AND PURPOSE Functional correlates of microstructural damage of the brain affected by MS are incompletely understood. The purpose of this study was to evaluate correlations of visual-evoked potentials with microstructural brain changes as determined by DTI in patients with demyelinating central nervous disease. MATERIALS AND METHODS Sixty-one patients with clinically isolated syndro...

We investigate a model of anisotropic diffuse interfaces in ordered FCC crystals introduced recently by Braun et al and Tanoglu et al [BCMcFW, T, TBCMcF], focusing on parametric conditions which give extreme anisotropy. For a reduced model, we prove existence and stability of plane wave solutions connecting the disordered FCC state with the ordered Cu3Au state described by solutions to a system...

Rolling is one of the most employed industrial processes which can be used at multiple manufacturing stages, allowing different geometries such as plates, rods, profiles, billets, slabs, tubes, and seamless tubes to obtained. However, rolled products develop anisotropy due preferential orientation crystals in rolling direction. Thus, some process configurations processing parameters (e.g., thic...