We propose an optically and electrically switchable cholesteric liquid crystal (ChLC) cell dopedwith a push– pull azo dye. When the proposed ChLC cell is exposed to UV light, it is switched from the focal-conic to isotropic state by a cholesteric-isotropic phase transition through a trans–cis photo-isomerization of push–pull azo dye molecules. With removal of UV light, the ChLC cell will rapidl...

Problem Statement: In the past 10 years, mobile devices have evolved from bulky, malfunctioning car phones to sleek new “smart phones”. Since they are now capable of running games and other useful applications, they have increasingly become more like computers than phones. They are capable of doing almost everything a PC can do, with exception of one leisurely activity, real time multiplayer ga...

There will be fundamental change in the Millennium, but not enacted in Washington, D.C. American health care is entering the "post-Managed Care" era in which payers, providers, plans, and patients reconstruct a new, more efficient, and, ultimately, more satisfying health care delivery system. The Millennium landscape of this evolving marketplace will be characterized by the following trends: (1...

Molecules consisting of a donor and an acceptor moiety can exhibit large intrinsic dipole moments. Upon deposition on metal surface, the may be effectively screened charge distribution altered due to hybridization with substrate electronic states. Here, we deposit Ethyl-Diaminodicyanoquinone molecules, which moment in gas phase, Au(111) surface. Employing combination scanning tunneling microsco...

BACKGROUND The Enterprise (EN) vascular reconstruction device is a self-expanding nitinol stent used as adjunctive support in wide-necked aneurysm coiling. We sought to evaluate the effect of deployment technique on how well the EN stent conforms to the vessel wall around a curve. METHODS A flow model consisting of a 3.5 mm diameter silicone tube forming a 7 mm radius curve was visualized usi...

INTRODUCTION Doing repetitive push-ups is among the most common exercise for the upper body and shoulder stabiliser muscle strength training. However, adverse effects such as neck pain, back pain, palmar pain and wrist pain have been reported. To date, to our knowledge, palmar pressure when performing push-ups has not been previously reported. We hypothesised that various hand positions during ...

Abstract To study the analysis and optimization of motion reliability multifunctional nursing bed mechanism, ADAMS software platform was chosen to simulate parametric modeling with consideration dimensional clearance errors. Taking back-raising mechanism as an example, we verify accuracy model by comparing experimental data. Based on effect error, a response surface motor end hinge clearance, p...