Augmented reality experiments with industrial robot in industry 4.0 environment

The role of human in the Industrie 4.0 vision is still considered as irreplaceable. Therefore, user interfaces of cyber-physical systems involved in the production automation need to be well designed and taking into consideration the industrial application requirements. With the advances in augmented and virtual reality data visualization and novel interaction techniques like mid-air gestures, these approaches seem to be suitable for integration into the industry environment. This paper describes the implementation of an augmented reality application for smart glasses with mid-air gestures and smart phone with touch interaction to compare and evaluate the usage of such interfaces in a production cell comprising an industrial robot.This research has been (partially) supported by the Technology Agency of the Czech Republic under the research program TE01020415 (V3C – Visual Computing Competence Center). This work is also (partially) funded by the Operational Programme for Competitiveness and Internationalisation –COMPETE 2020 and by FCT – Portuguese Foundation for Science and Technology.info:eu-repo/semantics/publishedVersio

Hymenobacter artigasi sp. nov., isolated from air sampling in maritime Antarctica

A rod-shaped and Gram-stain-negative bacterial strain, 1BT, was isolated from an air sample collected at King George Island, maritime Antarctica. Strain 1BT is strictly aerobic, psychrophilic, catalase-positive, oxidase-positive and non-motile. Growth of strain 1BT is observed at 0–20 °C (optimum, 10 °C), pH 6.0–8.0 (optimum, pH 8.0) and in the presence of 0–1.0% NaCl (optimum, 0.5 % NaCl). Phylogenetic analysis based on 16S rRNA gene sequences places strain 1BT within the genus Hymenobacter and shows the highest similarity to Hymenobacter antarcticus VUG-A42aaT (97.5 %). The predominant menaquinone of strain 1BT is MK-7 and the major fatty acids (>10 %) comprise summed feature 3 (C16 : 1  ω7c and/or C16 : 1  ω6c; 32.5 %), iso-C15 : 0 (17.6 %) and anteiso C15 : 0 (12.3 %). The polar lipid profile consists of the major compounds phosphatidylethanolamine, phosphatidylserine, two unidentified aminolipids and one unidentified phospholipid. The DNA G+C content based on the draft genome sequence is 61.2 mol%. Based on the data from the current polyphasic study, 1BT represents a novel species of the genus Hymenobacter , for which the name Hymenobacter artigasi sp. nov. is suggested. The type strain is 1BT (=CCM 8970T=CGMCC 1.16843T)

Fatigue behavior of resin-modified monolithic CAD–CAM RNC crowns and endocrowns

To evaluate the influence of different types of modifications with resin on fatigue resistance and failure behavior of CAD-CAM resin nano ceramic (RNC) restorations for maxillary first premolar