نتایج جستجو برای: splay leg
تعداد نتایج: 50715 فیلتر نتایج به سال:
2014 Experimental values are reported for the splay/twist viscoelastic ratios of OHMBBA in the nematic region as a function of temperature. In the experiments the homodyne self-beat technique was used to detect noise intensity spectra of laser light scattered by the nematic liquid crystal. The measured rotational viscosity can be described as a function of the temperature, the order parameter a...
We stabilize nematic droplets with handles against surface tension-driven instabilities, using a yield-stress material as outer fluid, and study the complex nematic textures and defect structures that result from the competition between topological constraints and the elasticity of the nematic liquid crystal. We uncover a surprisingly persistent twisted configuration of the nematic director ins...
Engineered levee breaches on the lower Cosumnes River, Central California, create hydrologic and geomorphic conditions necessary to construct dynamic sand splay complexes on the floodplain. Sand splay complexes are composed of a network of main and secondary distributary channels that transport sediment during floods. The main channel is bounded by lateral levees that flank the breach opening. ...
It is known that to traverse a binary tree in inorder, by repeated splay-to-root, uses O(n) rotations. Estimates vary from 15n to 4.5n in proofs of varying length and difficulty. We present a fairly easy estimate of 6n rotations. (1) The process under consideration is inorder traversal of a binary tree using repeated splay-to-root: n is the number of nodes in the tree. Call the operation of see...
A Landau-de Gennes model that integrates the nematic quadrupolar tensor order parameter and complex smectic-A order parameters is used to simulate the two-dimensional growth of an initially homogeneous smectic-A spherulite in an isotropic matrix. These simulations are performed in the shape-dynamic (nano-scale) regime of growth under two material conditions: isotropic nematic elasticity and equ...
We establish the global existence of solutions to the Cauchy problem for a system of hyperbolic partial differential equations in one space dimension modeling a type of nematic liquid crystals that has equal splay and twist coefficients. Our results have no restrictions on the angles of the director, as we use the director in its natural three-component form, rather than the two-component form ...
We present the CBTree, a new counting-based self-adjusting binary search tree that, like splay trees, moves more frequently accessed nodes closer to the root. After m operations on n items, c of which access some item v, an operation on v traverses a path of length O(log m c ) while performing few if any rotations. In contrast to the traditional self-adjusting splay tree in which each accessed ...
Any polar-ordered material with a spatially uniform polarization field is internally frustrated: The symmetry-required local preference for polarization is to be nonuniform, i.e., to be locally bouquet-like or "splayed." However, it is impossible to achieve splay of a preferred sign everywhere in space unless appropriate defects are introduced into the field. Typically, in materials like ferroe...
Splay and randomized search trees (RSTs) are self-balancing binary tree structures with little or no space overhead compared to a standard binary search tree (BST). Both trees are intended for use in applications where node accesses are skewed, for example in gathering the distinct words in a large text collection for index construction. We investigate the efficiency of these trees for such voc...
We develop a lattice model for the splay flexoelectric effect in nematic liquid crystals. In this model, each lattice site has a spin representing the local molecular orientation, and the interaction between neighboring spins represents pear-shaped molecules with shape polarity. We perform Monte Carlo simulations and mean-field calculations to find the behavior as a function of interaction para...
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