Results 41 to 50 of about 52,967 (287)

Counter lung [PDF]

open access: yes, 1972
Counter lung, incorporated in closed-loop rebreathing system, accommodates user's breathing tidal volume so that the loop pressure is relatively constant during breathing ...
Babinsky, A. D., Kiraly, R. J.
core   +1 more source

A mathematical model for breath gas analysis of volatile organic compounds with special emphasis on acetone

open access: yes, 2010
Recommended standardized procedures for determining exhaled lower respiratory nitric oxide and nasal nitric oxide have been developed by task forces of the European Respiratory Society and the American Thoracic Society.
A Amann   +93 more
core   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Assessment of radon/thoron exhalation rate in the soil samples of Amritsar and Tarn Taran district of Punjab state

open access: yesRadiation Protection and Environment, 2018
In the present study, the radon mass and thoron surface exhalation rates have been measured in the soil samples collected from the villages of the Amritsar and Tarn Taran districts of Punjab using the active portable device, i.e., SMART RnDuo monitor to ...
Manpreet Kaur   +3 more
doaj   +1 more source

Real-time setup to measure radon emission during rock deformation. Implications for geochemical surveillance [PDF]

open access: yes, 2015
Laboratory experiments can represent a valid approach to unravel the complex interplay between the geochemical behaviour of radon and rock deformation mechanisms.
Castelluccio, M.   +4 more
core   +3 more sources

Flow‐Adaptive Gas Sensing Enabled Using a Uniform Au Nanosheet Sensor Array and a Neural Network Inference

open access: yesAdvanced Materials Technologies, EarlyView.
Integrated Au nanosheet sensor array enables simultaneous inference of gas concentration and flow rate via deep neural network analysis, without external flow control. ABSTRACT Gas sensor responses are considerably affected by gas flow rates, thereby inhibiting the accurate detection of target gas concentrations in variable‐flow applications such as ...
Taro Kato   +4 more
wiley   +1 more source

Pneumo-phono-articulatory coordination assessment in dysarthria cases: a cross-sectional study

open access: yesSão Paulo Medical Journal, 2018
BACKGROUND: Pneumo-phono-articulatory coordination is often impaired in dysarthric patients. Because all speech is produced upon exhalation, adequate respiratory support and coordination are essential for communication.
Rebeca de Oliveira Chappaz   +2 more
doaj   +1 more source

Respiratory Signal Processing and Analysis Using Flexible Capacitive Sensor Data

open access: yesAdvanced Materials Technologies, EarlyView.
Capacitive pressure sensors based on poly(glycerol sebacate) (PGS) substrates are developed for continuous, non‐invasive respiratory monitoring. Integrated with a signal processing algorithm, they enable accurate tracking of thoracic expansion and retraction.
Bernardo A. Vicente   +3 more
wiley   +1 more source

Radioiodine Exhalation Following Oral I-131 Administration in a Mouse Model

open access: yesBiomedicines
Background: The exhalation of radioiodine following radioiodine therapy (RIT) presents a challenge in radiation protection, though the mechanisms remain incompletely understood. Previous studies have indicated that radioiodine is predominantly exhaled in
Klaus Schomäcker   +10 more
doaj   +1 more source

Investigation of the influence of chamber construction parameters on radon exhalation rate

open access: yesNukleonika, 2016
Radon exhalation from ground is a process dependent on the emanation and migration of radon through ambient air. Most studies on radon exhalation from soil were performed regarding the influence of meteorological and soil parameters.
Kozłowska Beata   +4 more
doaj   +1 more source

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