Complement and renal ischemia-reperfusion injury

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Improvement of the contour method for measurement of near-surface residual stresses from laser peening

A study was conducted to develop a methodology to obtain near-surface residual stresses for laser-peened aluminium alloy samples using the contour method. After cutting trials to determine the optimal cut parameters, surface contours were obtained and a new data analysis method based on spline smoothing was applied. A new criterion for determining the optimal smoothing parameters is introduced. Near-surface residual stresses obtained from the contour method were compared with X-ray diffraction and incremental hole drilling results. It is concluded that with optimal cutting parameters and data analysis, reliable near-surface residual stresses can be obtained by the contour method

Geometric inspection planning as a key element in industry 4.0

In the context of Industry 4.0, inspection is fundamental: if manufacturing opens the loop by converting digital parts into physical parts, inspection closes the loop by turning physical parts into information. The difference between an effective and a useless inspection is its planning. A well-planned inspection will provide the required data and information without wasting time and money. In this work, we discuss the current role of geometric inspection planning, showing that not only it is a must for Industry 4.0, in order to guarantee a good link between the physical and digital world, but it can take advantage of this framework to improve itself. Methodologies for optimal inspection planning have been already conceptually proved and are just waiting for the required amount of data and information to be available, and Industry 4.0 will be the enabler to fill this gap