Abstract Road traffic markings are made of glass beads embedded in paint. To analyze the effects glass-bead radius, embedment depth, correlated color temperature light sources, and incident angle on reflective performance beads, a numerical model is established using geometric optics method, effective conditions analyzed, calculation methods for optical power devised, non-standard planes calcul...

We contrast the dynamics in model unentangled polymer melts of chains of three different stiffnesses: flexible, intermediate, and rodlike. Flexible and rodlike chains, which readily solidify into close-packed crystals (respectively, with randomly oriented and nematically aligned chains), display simple melt dynamics with Arrhenius temperature dependence and a discontinuous change upon solidific...

Autocatalytic reaction fronts between two reacting species in the absence of fluid flow, propagate as solitary waves. The coupling between autocatalytic reaction front and forced simple hydrodynamic flows leads to stationary fronts whose velocity and shape depend on the underlying flow field. We address the issue of the chemico-hydrodynamic coupling between forced advection in porous media and ...

A column containing four concentric layers of progressively finer-grained glass beads (graded column) was used to study the transport of the bacteriophage T7 in water flowing parallel to layering through a fining-upwards (FU) sedimentary structure. By passing a pulse of T7, and a conservative solute tracer upwards through a column packed with a single bead size (uniform column), the capacity of...

We demonstrate active tuning of DNA adsorption on silica beads using an electrical switch in a microfluidic device; we use electrolysis of water to alter pH in a packed bed of silica beads and switch the silica bead surface between being adsorptive and desorptive for DNA molecules.

The ITER mock-up project was launched in order to demonstrate the feasibility of an industrial impregnation process using the new cyanate ester / epoxy blend. The mock-up simulates the TF winding pack cross section by a stainless steel structure with the same dimensions as the TF winding pack at a length of 1 m. It consists of 7 plates simulating the double pancakes, each of them is wrapped wit...

JOHNSON, ARNOLD, AND ASRAR B. MALIK. Effect of defybrinogenation on Lung fluid and protein exchange after glass bead embokation. J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 53(4): 895-900, 1982.-We examined the basis of the protective effect of defibrinogenation in dogs in preventing pulmonary edema following embolization with glass beads (A. Johnson and A. B. Malik, J. Appl. Physio...

PURPOSE Aberrant promoter hypermethylation of tumor suppressor genes is a promising marker for lung cancer detection. We investigated the likelihood of detecting aberrant DNA methylation of tumor suppressor genes in plasma samples of patients with abnormalities of the lung detected upon computed tomography (CT) scan. EXPERIMENTAL DESIGN In a small evaluation cohort, four gene promoters (DCC, ...

Glass bangles are found in southern England and Wales from the mid-first century ad become common north of Scotland late first century, before their numbers decline a later. British develop at time change, as Roman glassmaking practices were introduced across large areas Britain, blown, transparent, colourless naturally-coloured glassware became increasingly popular. In many communities, howeve...