PURPOSE Arrhythmias can be treated by ablating the heart tissue in the regions of abnormal contraction. The current clinical standard provides electroanatomic 3-D maps to visualize the electrical activation and locate the arrhythmogenic sources. However, the procedure is time-consuming and invasive. Electromechanical wave imaging is an ultrasound-based noninvasive technique that can provide 2-D...

Currently pressure sensors utilized for water measurement need batteries direct power supply. However, are lifespan-limited and not so reliable in the buried pipe environment. The maintenance work due to battery failures leads high cost utility owners. Wireless passive surface acoustic wave (WP-SAW) do supply from can harsh They low-cost compatible with micro-electromechanical systems (MEMS) te...

Because of economic, population, and consumption patterns changes, the use freshwater has increased significantly in last 100 years. Notably, measurement is essential to encourage water conservation. Thus, present study aims evaluate applicability a thin-film resistive sensor (bend sensor) with different coatings for implementation individualized systems. The motivation this work propose volume...

Abstract The entire process of calibrating an electromechanical simulator – identifying relevant parameters, designing and measuring test structures, extracting parameters using detailed electromechanical simulations, and extrapolating the behavior of an actual device – is presented. The simulation model for electrostatically actuated beams is calibrated to a wide range of electrical and optica...

Abstract. The paper considers an electromechanical surfacing technique of parts’ work surfaces. It was found out that depending on strain temperature, rate and degree there were special type structures formed a surface layer with phase change (a bright layer), i.e. hot deformed structure without recrystallization cold structure. Depending the original hardening conditions, during parts thicknes...

We present a learn by example system being developed in the University of Aveiro. This system uses the software platform, PeA, of the project PmatE, which provides a way to store and run our example questions (more precisely question generator models). Several PeA models for the course “Cálculo III” (calculus with several variables), have been produced recently. The contents of the course is di...