The interaction between flow and orientation of liquid crystalline polymers ~LCPs! creates remarkable heterogeneous patterns in which defects, or singular solutions, serve to mediate a confluence of ordered nematic phases. The origin of defects remains a mystery. It is therefore valuable to have models for LCP flows that provide some evidence of defects, and of the corresponding physical compet...

We examine orientational patterns of liquid crystalline polymers (LCPs) using a mesoscale Doi theory that couples short-range, excluded-volume molecular interactions, rotary molecular diffusion, and the Marrucci–Greco potential for finite-range distortional elasticity. The model is a full tensor, polymeric generalization of small-molecule liquid crystal (Ericksen–Leslie) theory. The symmetric, ...

The accuracy of photogrammetric and Lidar dataset integration is dependent on the quality of a group of parameters that models accurately the conditions of the system at the moment of the survey. In this sense, this paper aims to study the effect of the sub-block position in the entire image block to estimate the interior orientation parameters (IOP) in flight conditions to be used in integrate...

The performance properties of many polymers are dom inated by the molecular alignment induced during pro cessing by the elongational ow component that is the diagonal component of the velocity gradient tensor Here we discuss two idealizations of this ow microstructure in teraction We rst summarize our recent studies of biaxial nematic patterns and phase transitions Forest andWang a of lyotropic...

Background: Although proximal femoral locking compression plates (PF-LCP) have been used with increasing frequency in the fixation of fractures pediatric population, there is a lack literature regarding their use. The purpose this study was to examine failure rates PF-LCP comparison other accepted methods within population. Methods: Retrospective review identified consecutive children treated f...

We study the problem of solving discounted, two player, turn based, stochastic games (2TBSGs). Jurdziński and Savani showed that in the case of deterministic games the problem can be reduced to solving P -matrix linear complementarity problems (LCPs). We show that the same reduction also works for general 2TBSGs. This implies that a number of interior point methods can be used to solve 2TBSGs. ...

An effective scheme to simulate low-speed, contact-rich manipulation tasks is to assume quasistatic physics and advance system states by solving linear complementarity problems (LCPs). However, the existing LCP-based quasistatic time-stepping scheme fails to simulate grasping—an essential motion primitive in manipulation—due to two drawbacks specific to quasistatic systems. Firstly, inputs to q...

OBJECTIVES The study aims to evaluate outcomes of autologous iliac bone impaction grafts (AIBIGs) with locking-compression plates (LCPs) in four-part proximal humeral fracture. METHODS Between October 2004 and October 2008, 21 AIBIG with LCP osteosyntheses were done for four-part proximal humeral fractures. Patients included seven males and 14 females. Their mean age at the time of the operat...

Electron-hole (e-h) capture in luminescent conjugated polymers (LCPs) is modeled by the dissipative dynamics of a multilevel electronic system coupled to a phonon bath. Electroinjected e-h pairs are simulated by a mixed quantum state, which relaxes via phonon-driven internal conversions to low-lying charge-transfer (CT) and excitonic (XT) states. The underlying two-band polymer model reflects P...

The paper describes the technology of nickel-alumina composite coatings obtained by low-pressure cold spray (LPCS). content alumina reinforcement was optimized mixing commercial K32, being a mechanical mixture Al2O3 + 50 wt% Ni, with Ni-cladded powders developed in present study. cladded were prepared hydrogen reduction method. Two including Ni-films covering particles developed: 70 Ni (powder ...