Multilayer sol-gel optical high reflectors with greater than 99% reflection have been prepared on substrates up to 20 cm in diameter by spin coating silica/alumina colloidal suspensions. These coatings are radially nonuniform, owing to the extensive shear-thinning rheology of the high-index alumina suspension. To a large degree the film thickness nonuniformity can be compensated for by the refl...

The rheological properties of non-Brownian carbon nanotube suspensions are measured over a range of nanotube volume fractions spanning the transition from semidilute to concentrated. The polymer-stabilized nanotubes are "sticky" and form a quiescent elastic network with a well-defined shear modulus and yield stress that both depend strongly on nanotube volume fraction with different but related...

BACKGROUND In previous work, we described viscosity and permittivity microelectromechanical systems (MEMS) sensors for continuous glucose monitoring (CGM) using poly[acrylamide-ran-3-acrylamidophenylboronic acid (PAA-ran-PAAPBA). In order to enhance our MEMS device antifouling properties, a novel, more hydrophilic polymer-sensing fluid was developed. METHOD To optimize sensing performance, we...

Oil Chemical Research. USDA l-ARS-NCAUR. 1815 N. U;liuersity Street, Peoria, IL 61604, USA Accepted 8 October 1999 Compared to the lubricants made of petroleum, vegetable-based lubricants are much more biodegradable but inferior in many other technical characteristics. The basestock typically contributes to more than 80% of lubricant and must meet performance criteria in such aspects as cleanli...

The purpose of this paper is to demonstrate how the general problem interconversion between parallel and orthogonal superposition protocols can be treated using kernels in a Fréchet series expansion about base viscometric flow. Such differ from expanded rest history which are encountered theory Green–Rivlin materials simple fluid Coleman Noll, that nonlinear response material captured at first ...