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Impact of Radial Electrode Coverage on the Performance of Liquid-Deployed PMUTs: A Dynamic and Kinematic Study.
Micromachines (Basel)
January 2025
Faculty for the Built Environment, University of Malta, MSD 2080 Msida, Malta.
This paper highlights the optimisation of a key design parameter essential to the development of PMUTs, which are part of the transmitting components of microsensors. These microsensors are designed for use in the Structural Health Monitoring of reinforced concrete structures. Enhancing the effectiveness of the transmitting component allows for greater spacing between microsensors, which in turn reduces the number of devices needed to implement a full structural health monitoring system.
View Article and Find Full Text PDFStudy on construction mechanic characteristics and construction optimization of super-large cross-section tunnel portal under shallow buried depth and asymmetrical loading: A case study in Southwest China.
PLoS One
January 2025
Zhejiang Natural Resources Group Spatial Information Co., Ltd, Hangzhou, China.
Article Synopsis
- The excavation of large tunnel portals can lead to significant engineering challenges, necessitating a thorough understanding of construction mechanics and careful scheme selection.
- In analyzing a six-lane expressway tunnel in Southwest China, three excavation methods were compared: the three-bench seven-step method, the central diaphragm method (CDM), and the double side drift method (DSDM).
- Results showed that asymmetrical loads affected rock deformation, with both CDM and DSDM providing better stability and less deformation by adapting the excavation sequence for optimal results.
Online tree-structure-constrained RPCA for background subtraction of X-ray coronary angiography images.
Comput Methods Programs Biomed
January 2025
Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran. Electronic address:
Article Synopsis
- Background subtraction in X-ray coronary angiograms (XCA) enhances the diagnosis of coronary vessel diseases but is challenging due to complex background dynamics.
- The proposed OTS-RPCA method uses robust PCA for background removal, employing techniques like morphological closing and tree-structured norms to improve vessel coherence and reduce noise.
- Evaluated on real and synthetic datasets, the method outperformed seven existing techniques, yielding superior contrast and structural preservation of coronary vessels, as indicated by high CNR and SSIM values.
Compact Arterial Monitoring Device Use in Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA): A Simple Validation Study in Swine.
Cureus
October 2024
Department of Anesthesiology, Uniformed Services University of the Health Sciences, Bethesda, USA.
Article Synopsis
- - Hemorrhage is the main cause of preventable death in trauma situations, leading to military and civilian advancements in medical practices, particularly through the use of tourniquets to manage extremity bleeding and save lives.
- - While tourniquets have significantly decreased deaths from bleeding in military settings, noncompressible hemorrhage still poses a major risk, especially before patients receive definitive medical care.
- - The study explores using a small, disposable pressure monitor during resuscitative endovascular balloon occlusion of the aorta (REBOA) to enhance blood pressure monitoring, facilitate better resuscitation practices, and reduce the need for blood products in extreme environments.
Does patient-ventilator asynchrony really matter?
Curr Opin Crit Care
February 2025
Keenan Centre for Biomedical Research, Li Ka Shing Knowledge Institute, Unity Health Toronto.
Purpose Of Review: Past observational studies have reported the association between patient-ventilator asynchronies and poor clinical outcomes, namely longer duration of mechanical ventilation and higher mortality. But causality has remained undetermined. During the era of lung and diaphragm protective ventilation, should we revolutionize our clinical practice to detect and treat dyssynchrony?
Recent Findings: Clinicians' ability to recognize asynchronies is typically low.
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