Results 61 to 70 of about 3,350,686 (319)

Health and economic benefits of building ventilation interventions for reducing indoor PM2.5 exposure from both indoor and outdoor origins in urban Beijing, China [PDF]

open access: yes, 2018
China is confronted with serious PM2.5 pollution, especially in the capital city of Beijing. Exposure to PM2.5 could lead to various negative health impacts including premature mortality. As people spend most of their time indoors, the indoor exposure to
Lin, Yaoyu   +4 more
core   +1 more source

Ultra-open High-efficiency Ventilated Metamaterial Absorbers with Customized Broadband Performance [PDF]

open access: yesExtreme Mechanics Letters, 39, 100786 (2020), 2019
High-efficiency absorption of low-frequency sounds (< 1000 Hz) while maintaining a free flow of fluids remains a significant challenge in acoustical engineering due to the rigid trade-off between absorption and ventilation performances. Although ongoing advances in acoustic metamaterials have unlocked unprecedented possibilities and various ...
arxiv   +1 more source

Assessment of 28-Day In-Hospital Mortality in Mechanically Ventilated Patients With Coronavirus Disease 2019: An International Cohort Study

open access: yesCritical Care Explorations, 2021
IMPORTANCE:. Factors associated with mortality in coronavirus disease 2019 patients on invasive mechanical ventilation are still not fully elucidated. OBJECTIVES:.
Gianluigi Li Bassi, MD, PhD   +706 more
doaj   +1 more source

Improving mechanical ventilation for patient care through repetitive control [PDF]

open access: yesarXiv, 2020
Mechanical ventilators sustain life of patients that are unable to breathe (sufficiently) on their own. The aim of this paper is to improve pressure tracking performance of mechanical ventilators for a wide variety of sedated patients. This is achieved by utilizing the repetitive nature of sedated ventilation through repetitive control.
arxiv  

Prevalence, Predictors, and Outcomes of Prolonged Mechanical Ventilation After Endovascular Stroke Therapy. [PDF]

open access: yes, 2021
BACKGROUND: To investigate the rates, predictors, and outcomes of prolonged mechanical ventilation (≥ 96 h) following endovascular treatment (EVT) of ischemic stroke. METHODS: Hospitalizations with acute ischemic stroke and EVT were identified using
Kazemlou, Shaghayegh   +10 more
core   +1 more source

Optimal ventilation rate for effective displacement ventilation [PDF]

open access: yesarXiv, 2021
Indoor ventilation is essential for a healthy and comfortable living environment. A key issue is to discharge anthropogenic air contamination such as CO2 gas or, more seriously, airborne respiratory droplets. Here, by employing direct numerical simulations, we study the mechanical displacement ventilation with the realistic range of air changes per ...
arxiv  

Lung Rest During Extracorporeal Membrane Oxygenation for Neonatal Respiratory Failure-Practice Variations and Outcomes. [PDF]

open access: yes, 2017
OBJECTIVE: Describe practice variations in ventilator strategies used for lung rest during extracorporeal membrane oxygenation for respiratory failure in neonates, and assess the potential impact of various lung rest strategies on the duration of ...
Aghai, Zubair H.   +5 more
core   +1 more source

Plasma membrane disruptions with different modes of injurious mechanical ventilation in normal rat lungs [PDF]

open access: yes, 2012
Plasma membrane disruptions are caused by excessive mechanical stress and thought to be involved in inflammatory mediator upregulation. Presently, plasma membrane disruption formation has been studied only during mechanical ventilation with large tidal ...
A. Koutsoukou   +3 more
core   +1 more source

Effect of Titrating Positive End-Expiratory Pressure (PEEP) With an Esophageal Pressure–Guided Strategy vs an Empirical High PEEP-FIO2 Strategy on Death and Days Free From Mechanical Ventilation Among Patients With Acute Respiratory Distress Syndrome: A Randomized Clinical Trial

open access: yesJournal of the American Medical Association (JAMA), 2019
Importance Adjusting positive end-expiratory pressure (PEEP) to offset pleural pressure might attenuate lung injury and improve patient outcomes in acute respiratory distress syndrome (ARDS).
J. Beitler   +7 more
semanticscholar   +1 more source

Machine Learning for Mechanical Ventilation Control (Extended Abstract) [PDF]

open access: yesarXiv, 2021
Mechanical ventilation is one of the most widely used therapies in the ICU. However, despite broad application from anaesthesia to COVID-related life support, many injurious challenges remain. We frame these as a control problem: ventilators must let air in and out of the patient's lungs according to a prescribed trajectory of airway pressure. Industry-
arxiv  

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