background and purpose: many workers are exposed to workplace hazards. many occupational diseases are preventable by personal protective devices (ppds). though many workers do not use ppds or their protection by ppds is not sufficient. this study was designed to assess the quality of ppds usage among industrial workers. materials and methods: in a cross-sectional study, 648 workers from four ma...

The object of research is intumescent fire retardant coatings based on epoxy resins. aimed at the development mathematical models dependence swelling rate their composition. Considering complexity processes during formation a protective carbon layer, it advisable to select optimal ratio components an coating experimentally, followed by construction dependences Therefore, experimental studies de...

BACKGROUND The objective of this study was to evaluate fluid-bed coating as a new technique to prepare a pellet-based solid self-nanoemulsifying drug delivery system (SNEDDS) using cyclosporin A as a model of a poorly water-soluble drug. METHODS The rationale of this technique was to entrap a Liquid SNEDDS in the matrix of the coating material, polyvinylpyrrolidone K30, by fluid-bed coating. ...

This work is devoted to the study of influence protective coating, initial stresses, mechanical characteristics materials, movement parameters surface load on stress-deformed state elastic base. The relevance research results related possibility their use in creation qualitatively new structures and building structures. Two models a layered incompressible half-space are considered compared: 1) ...

A protective coating has been applied onto the phosphated panels using cathodic electrocoating in two different dry film thickness namely 8µm and 20µm. The corrosion resistance of cathodic electrocoatings has been studied using AC/DC/AC method. Twelve cycles of AC/DC/AC test were carried out on each sample which the DC voltage of the first 6 cycles were -4 V VS. Ag/AgCl @ 20 minutes followed by...