Results 131 to 140 of about 315,034 (346)

Harmonic MUSIC Method for mmWave Radar-based Vital Sign Estimation [PDF]

open access: yesarXiv
This paper investigates the application of millimeter-wave (mmWave) radar for the estimation of human vital signs. Aiming to obtain more accurate frequency estimation for periodic signals of respiration and heartbeat, we propose the harmonic MUSIC (HMUSIC) algorithm to consider harmonic components for frequency estimation of vital sign signals.
arxiv  

Interfacial Yield Stress Response in Synthetic Mucin Solutions

open access: yesAdvanced Materials Interfaces, EarlyView.
The solution rheology of novel synthetic mucins mimicking natural mucin domains is studied. Like many natural mucin solutions, apparent solid‐like rheology is seen. However, no bulk structural features are found to explain it. Interfacial rheology and robust modelling reveal that this arises from molecular associations at the air–water interface ...
Sumit Sunil Kumar   +7 more
wiley   +1 more source

Continuous Positive Airway Pressure with Spontaneous Respiration: A New Method of Increasing Arterial Oxygenation in the Respiratory Distress Syndrome [PDF]

open access: bronze, 1970
George A. Gregory   +4 more
openalex   +1 more source

Electrophotographic Powder Application for Surface Functionalization of Polymer Parts with Thin Silver‐Nanoadditivated Bactericidal Layers

open access: yesAdvanced Materials Technologies, EarlyView.
Polyamide 12 powder nanoadditivated with laser‐synthesized silver nanoparticles is deposited and sintered on polymer parts via EPA‐PBF‐LB/P. The thin surface coating (140 µm) inhibits E. coli and S. aureus bacteria growth and significantly increases the UV light absorption, whereas the mechanical and thermal properties remain unchanged due to minimal ...
Jan Lino Kricke   +9 more
wiley   +1 more source

Evaporation‐Enhanced Redox Cycling for Rapid Detection of Attomolar SARS‐CoV‐2 Virions Using Nanolithography‐Free Electrochemical Devices

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents microfabricated electrochemical sensors for detecting ultralow viral particles counts through evaporation‐enhanced redox cycling (E2RC). To achieve sub‐micrometer gap in interdigitated microelectrodes, a scalable, nanolithography‐free fabrication method is developed.
Pouya Soltan Khamsi   +2 more
wiley   +1 more source

Seamless Integration and Implementation of Distributed Contact and Contactless Vital Sign Monitoring [PDF]

open access: yesarXiv
Real-time vital sign monitoring is gaining immense significance not only in the medical field but also in personal health management. Facing the needs of different application scenarios of the smart and healthy city in the future, the low-cost, large-scale, scalable, and distributed vital sign monitoring system is of great significance. In this work, a
arxiv  

Functional Polymer Nanocomposites by Gas Aggregation Cluster Source and Initiated Chemical Vapor Deposition

open access: yesAdvanced Materials Technologies, EarlyView.
In this work, a gas aggregation cluster source and an initiated chemical vapor deposition are combined in a single vacuum reactor. With this setup polymer thin films can be combined with functional nanoparticles. As a proof‐of‐concept PTFE is combined with silver nanoparticles and tested in antibacterial, antiviral, and anticancer applications ...
Torge Hartig   +19 more
wiley   +1 more source

Oscillatory ventilation enhances oxygenation and reduces inflammation in an animal model of acute respiratory distress syndrome: an experimental study

open access: yesBrazilian Journal of Anesthesiology
Background: This study aims to compare the use of variable mechanical ventilation with conventional mechanical ventilation in a porcine model of ARDS induced by oleic acid.
Luiz Alberto Forgiarini Junior   +6 more
doaj  

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