Results 111 to 120 of about 1,445,190 (422)
Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar +6 more
wiley +1 more source
Machine Learning for Mechanical Ventilation Control (Extended Abstract) [PDF]
arXiv, 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
Italian Journal of Pediatrics, 2017 Background Seasonal variability on obstructive sleep apnea has already been studied by polysomnography in children. Winter and spring season emerged as critical periods. No data are currently available for pulse oximetry performed at home. The aim of our
Martino Pavone +5 more
doaj +1 more source
Italian Journal of Pediatrics, 2020 Background Children with chronic respiratory failure and/or sleep disordered breathing due to a broad range of diseases may require long-term ventilation to be managed at home.
Martino Pavone +5 more
doaj +1 more source
Hygrothermal Risk in Museum Buildings Located in Moderate Climate
Energies, 2020 Works of art are sensitive to environmental factors—mainly temperature and relative humidity—which, when stable, are generally recommended as ideal protection conditions, but in historical museum buildings, the required conditions are ...
Joanna Ferdyn-Grygierek +5 more
doaj +1 more source
Time-averaged single sided ventilation rates and thermal environment in cooling mode for a low energy retrofit envelope [PDF]
, 2014 Non-invasive, scalable, building retrofit solutions are very attractive deep renovation techniques to improve energy efficiency in existing buildings; this includes natural ventilation for cooling due to the low impact nature of the installation. However,
Kolokotroni, M, O'Sullivan, PD
core +1 more source
Ventilation control for airborne transmission of human exhaled bio-aerosols in buildings.
Journal of Thoracic Disease, 2018 The emergence of respiratory diseases, i.e., severe acute respiratory syndrome (SARS) epidemic in 2003, H1N1 influenza epidemic in 2011 and Middle East respiratory syndrome (MERS) outbreak, reiterated the significance of ventilation in buildings.
H. Qian, Xiaohong Zheng
semanticscholar +1 more source
Intermittent mandatory ventilation with ‘Manley’ ventilators [PDF]
Anaesthesia, 1976 A method is described whereby gas powered, minute volume divider, ventilators may be adapted to provide intermittent mandatory ventilation.
D.G. Ross, H. J. Manson
openaire +3 more sources
Evaluation of internal target volume of abdominal tumors using cine‐MRI
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction The detailed anatomy visualization with magnetic resonance (MR)‐guided radiotherapy is particularly attractive for abdominal treatments, but patient respiratory motion can compromise image quality. The “navigator technique” produces high‐quality 3D images, triggered by diaphragm displacement, in exhale phase only.
Jessica Lye +8 more
wiley +1 more source
Technological model of building life cycle/Statinio gyvavimo ciklo technologinis modelis
Journal of Civil Engineering and Management, 2001 Under present conditions there are no regulating documents for building life span, maintenance, recondition and reconstruction works and periodicity in Lithuania. The suggested model allows to evaluate optimal values for building work periodicity. The
Vytautas Martinaitis, Artūras Rogoža
doaj +1 more source