Intelligent modeling and optimization of titanium surface etching for dental implant application.

Acid-etching is one of the most popular processes for the surface treatment of dental implants. In this paper, acid-etching of commercially pure titanium (cpTi) in a 48% HSO solution is investigated. The etching process time (0-8 h) and solution temperature (25-90 °C) are assumed to be the most effective operational conditions to affect the surface roughness parameters such as arithmetical mean deviation of the assessed profile on the surface (R) and average of maximum peak to valley height of the surface over considered length profile (R), as well as weight loss (WL) of the dental implants in etching process.

Intelligent modeling and optimization of environmentally friendly green enzymatic deinking of printed paper.

Nowadays, the paper industry supplies its required fibers either from primary fibers, including wood and plants, or waste papers, called secondary fibers. One of the most challenging recycling processes is deinking of papers digitally printed with electrophotographic ink. In order to produce optically high-quality paper from recycled waste papers, deinking step is required at the desired levels.