The paper investigates the effect of number passes (1 or 2) an indenter made fine cubic boron nitride during friction treatment PG-SR2 and PG-10N-01 NiCrBSi-coatings on micromechanical properties their surface layers. coating under all process conditions studied, in comparison with initial polished state, increases strength characteristics layer parameters indicating resistance material to elas...

A combination of surface energy-guided blade coating and inkjet printing is used to fabricate an all-printed high performance, high yield, and low variability organic thin film transistor (OTFT) array on a plastic substrate. Functional inks and printing processes were optimized to yield self-assembled homogenous thin films in every layer of the OTFT stack. Specifically, we investigated the effe...

Plastic optical parts require antireflective as well as hard coatings. A novel design concept for coating plastics combines both functions. Symmetrical three-layer periods with a phase thickness of 3/2pi are arranged in a multilayer to achieve a step-down refractive-index profile. It is shown mathematically that the equivalent index of symmetrical periods can be lower than the lowest refractive...

The primary hepatocytes culture is still one of the main challenges in toxicology studies in the drug discovery process, development of in vitro models to study liver function, and cell-based therapies. Isolated hepatocytes display a rapid decline in viability and liver-specific functions including albumin production, conversion of ammonia to urea, and activity of the drug metabolizing enzymes....

OBJECTIVE Plastic biliary stents used to relieve obstructive jaundice are frequently blocked by sediment, resulting in loss of drainage. We prepared stents coated with silver nanoparticles (AgNPs) and compared their ability to resist sedimentation with Teflon stents in a beagle model of obstructive jaundice. METHODS AgNP-coated Teflon biliary stents were prepared by chemical oxidation-reducti...

An outbreak of occupational asthma, of unknown cause and extent, was detected in a steel coating plant. In 1979 a cross-sectional study which defined occupational asthma in terms of respiratory symptoms detected 21 people with suggestive symptoms among the 221 studied. They all worked in the coating shop, but the plastic coatings used at the plant contained many potential sensitising agents tha...

!BSTRACT The presented paper demonstrates a method to embed a unique signature into a coating material used in a smart card or in the covering material of some other secure hardware device. The method bases on the impossibility of exactly reproducing a specific piece of plastic or other material used to cover the secure hardware. By using a very inhomogeneous materials or mixtures of conductors...