the static strain aging is a phenomenon that can change the mechanical properties of low carbon steels. thus, the static strain aging behavior of low carbon steel wires after drawing process is studied. to do so, the wires are austenitized at different temperatures and cooled in different rates. then the wires are drawn and aged at a specific temperature and time. before and after aging of each...

Background: The purpose of this study was to evaluate the effect in vitro long-term simulation oral conditions on bond strength PEEK CAD/CAM lingual retainers. Material and methods: sample consisted 12 retainers each composed 2 centrally perforated 3x4mm pads joined by a connector. They were treated 98% sulfuric acid for 1 minute then conditioned with Single Bond Universal bonded surface premol...

Artificial olfaction is a potential tool for noninvasive chemical monitoring. Application of "electronic noses" typically involves recognition of "pretrained" chemicals, while long-term operation and generalization of training to allow chemical classification of "unknown" analytes remain challenges. The latter analytical capability is critically important, as it is unfeasible to pre-expose the ...