Rheological Behavior of Oil Well Cement Slurries with Addition of Core/Shell TiO@SiO Nanoparticles-Effect of Superplasticizer and Temperature.

This study investigates the rheological behavior of oil well cement pastes (OWCPs) modified with core/shell TiO@SiO (nTS) nanoparticles and polycarboxylate-ether (PCE) superplasticizers at different temperatures (25, 45, and 60 °C). Results show that nTS particles increased static and dynamic yield stresses and the apparent viscosity of the cement slurries due to an increased solid volume fraction and reduced free water availability. The increase in the slurry dispersion by adding PCE superplasticizers enhanced the effect of the nanoparticles on the rheological parameters.

Educational technologies to promote the quality of life of people with diabetes: quasi-experimental study.

Objective: to verify the effect of educational technologies on the quality of life of people with diabetes.

Method: quasi-experimental study, before-and-after type, developed with a group of 34 people. Six interventions were carried out, in groups or individually, using educational technologies, such as clinical simulators and physical educational games.

SHM System for Composite Material Based on Lamb Waves and Using Machine Learning on Hardware.

There is extensive use of nondestructive test (NDT) inspections on aircraft, and many techniques nowadays exist to inspect failures and cracks in their structures. Moreover, NDT inspections are part of a more general structural health monitoring (SHM) system, where cutting-edge technologies are needed as powerful resources to achieve high performance. The high-performance aspects of SHM systems are response time, power consumption, and usability, which are difficult to achieve because of the system's complexity.