Browsing by Issue Date, starting with "2025-06-11"
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- Driving Healthcare Monitoring with IoT and Wearable Devices: A Systematic ReviewPublication . João Pedro da Silva Baiense; Zdravevski, Eftim; Coelho, Paulo Jorge Simões; Serrano Pires, Ivan Miguel; Velez, Fernando J.Wearable technologies have become a significant part of the healthcare industry, collecting personal health data and extracting valuable information for real-time assistance. This review article analyzes 35 scientific publications on driving healthcare monitoring with IoT and wearable device applications. These articles were considered in a quantitative and qualitative analysis using the Natural Language Processing framework and the PRISMA methodology to filter the search results. The selected articles were published between January 2010 and May 2024 in one of the following scientific databases: IEEE Xplore, Springer, ScienceDirect (i.e., El- sevier), Association for Computing Machinery (ACM), Multidisciplinary Digital Publishing Institute (MDPI), or PubMed Central. The analysis considers population, methods, hardware, features, and communications. The research highlights that data collected from one or numerous sensors is processed and accessible in a database server for various uses, such as informing professional careers or assisting users. The review sug- gests that robust and efficient driving healthcare monitoring with IoT and wearable devices applications can be designed considering the valuable principles presented in this review.
- Aerodynamic Analysis of a Two-Man BobsleighPublication . Ribeiro, Simão Rafael Silvério; Gamboa, Pedro VieiraBobsleigh is a highly competitive winter sport in which technological advancements play a crucial role in optimising performance, with aerodynamics being a key factor in race outcomes. This study presents a comprehensive aerodynamic analysis of a two-man bobsleigh using Computational Fluid Dynamics (CFD) simulations to investigate flow structures and drag sources, with the objective of improving aerodynamic efficiency through geometric modifications. A baseline bobsleigh geometry was developed using photographic references of high-performance designs from recent competitions. CFD analyses were conducted in ANSYS Fluent, employing the Realizable ?? - ?? turbulence model with Non-Equilibrium Wall Functions for near-wall modelling. Key aerodynamic characteristics, such as flow separation regions and pressure distributions were identified and studied. Simulations were performed at two distinct free-stream velocities: 15 ??/??, representative of the late push start phase, and 35 ??/??, corresponding to race-speed conditions. Additional analyses were conducted to evaluate the influence of confining walls in straight track sections on bobsleigh aerodynamic performance. Based on these findings and existing research, an iterative design process was conducted to develop an improved geometry aimed at reducing aerodynamic drag. The enhanced design incorporates modifications to the front bumper, ground clearance, and diffuser geometry, resulting in a 6.37% reduction in aerodynamic drag and a 3.14% increase in maximum speed.