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En torno a la traducción de las variedades regionales y dialectales entre lenguas filogenéticamente emparentadas (italiano / siciliano > español.¿Misión posible?
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Sustainable use of 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride as metal free tanning agent
No full textLeather manufacturing is water, energy and waste intensive and requires integrated prevention and control of pollution. Tannery effluents, if not properly treated, may cause significant damage to soil and water bodies thus, tanners are looking for more environmentally sustainable technologies. In this concern, a process has been designed employing a new tanning agent allowing to produce totally metal-, formaldehyde- and phenol-free non-toxic leather. The agent tested is 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMTMM), which appears to be a very efficient tanning agent producing hides with shrinkage temperatures as high as Ts = 87 °C. Environmental and economic benefits arising from the use of DMTMM are discussed
A multi-technique characterization study of building materials from the Exedra of S. Nicolò l'Arena in Catania (Italy)
No full textThe S. Nicolò l'Arena Exedra in Catania was built up in 1722 in front of the homonymous Monastery. The façade is composed by natural and artificial stones: Syracuse stone for portals and windows frames, lava stone for the basement and a reddish plaster for plane surfaces, typical materials of the Catania historic buildings. Its color is due to the introduction of the so-called “ghiara” in the finishing mixture. A multi-technique study is here presented: after the obtainment of a detailed surveying of the building surface through the integration of 3D laser scanner and digital photogrammetry techniques, FTIR-ATR, Raman and XRD analysis were carried out to characterize structures, materials and their alteration products
Procedurally Provisioned Access Control for Robotic Systems
No full textSecurity of robotics systems, as well as of the related middleware infrastructures, is a critical issue for industrial and domestic IoT, and it needs to be continuously assessed throughout the whole development lifecycle. The next generation open source robotic software stack, ROS2, is now targeting support for Secure DDS, providing the community with valuable tools for secure real world robotic deployments. In this work, we introduce a framework for procedural provisioning access control policies for robotic software, as well as for verifying the compliance of generated transport artifacts and decision point implementations
