Thermal issues are critical when machining Ni-based superalloy components designed for high temperature applications. The low thermal conductivity and extreme strain hardening of this family of materials results in elevated temperatures around the cutting area. This elevated temperature could lead to machining-induced damage such as phase changes and residual stresses, resulting in reduced serv...

The overall objective of this work has been to develop and evaluate tools for designing against fatigue in gas turbine applications, with special focus on the nickelbased superalloy Inconel 718. The fatigue crack propagation behaviour under high temperature hold times has been studied. Firstly, the main fatigue crack propagation phenomena have been investigated with the aim of setting up a basi...

Abstract Aims Cavotricuspid isthmus ablation is a routine procedure in electrophysiology laboratories. It mainly performed as treatment for cavotricuspid isthmus-dependent atrial flutter, which rare young patients without structural heart disease. Safety and efficacy data regarding this such are scarce. In case series we present the clinical characteristics related outcomes of 3 juvenile overt ...

normal healthy pulpal tissues were obtained from 19 impacted molars and symptomatic samples were obtained from 18 carious molars and premolars clinically diagnosed in all vital pulpal tissues. student's t-test revealed significant differences in il-2 concentrations, comparing symptomatic pulpal tissues with normal healthy samples (657, p