Page 139 - tech fest 2025 ב״ש חוברת תקצירים

Monitoring the Development of Pressure Ulcers
ME-C-25
Yanir Bar Hazan; yanirbh3@gmail.com Shahaf Bar; shahafbar12@gmail.com
Advisor: Dr. Nir Trabelsi
SCE - Shamoon College of Engineering, Be’er-Sheva
‘Pressure ulcers’ (bedsores) are severe tissue injuries caused by prolonged compression, primarily affecting elderly or immobile patients. These injuries cause intense pain, increase infection risks, and can be fatal. This project evaluates two innovative, non-invasive wearable solutions embedded within a ‘smart sock’ for continuous real-time monitoring—one using a matrix of thin, flexible sensors measuring pressure, temperature, and humidity, and another employing ‘bioelectrical impedance spectroscopy’ (BIS) to assess tissue health by measuring impedance across specific frequencies. Both approaches provide early detection and immediate alerts, facilitating proactive intervention— significantly improving patient outcomes and reducing healthcare burdens.
Keywords: bioelectrical impedance spectroscopy, pressure ulcers, proactive monitoring, wearable sensors
Mechanical Characterization of Powder-Based Models
ME-C-26
Shahar Nadir; nadirs113@gmail.com Alon Hetsroni; alonhets1@gmail.com
Advisors: Dr. Elad Priel1,2, Mr. Yair Yacobi2
1SCE - Shamoon College of Engineering, Be’er-Sheva 2NRCN - Nuclear Research Center Negev
Aluminum matrix composites (AMSc) are promising structural materials for automotive, aerospace, and energy industries due to their high strength-to-weight ratio. This project investigates the mechanical properties of aluminum-based powders reinforced with varying volume fractions of SiC and TiB2 at both green and sintered stages. Special focus is on the tensile properties of the green bodies, which are difficult to measure with standard testing. Miniature tensile tests were conducted on green samples, following validation using downsized aluminum specimens. Initial results show measurable strength and low ductility in green compacts. Further testing will assess green and sintered reinforced samples via tensile, diametral compression, and bending tests. The goal of our study is to evaluate the mechanical properties of powder-based models and assess the influence of compaction and sintering on their behaviors.
Keywords: AMS, green compacts, powder metallurgy, sintering, tensile
Book of Abstracts | 2025
139