Results 291 to 300 of about 23,771,265 (342)

A smart mask for exhaled breath condensate harvesting and analysis

Science
Recent respiratory outbreaks have garnered substantial attention, yet most respiratory monitoring remains confined to physical signals. Exhaled breath condensate (EBC) harbors rich molecular information that could unveil diverse insights into an ...
Wenzheng Heng, Shukun Yin, Jihong Min, Canran Wang, Hong Han, Ehsan Shirzaei Sani, Jiahong Li, Yu Song, H. Rossiter, Wei Gao   +9 more
semanticscholar   +1 more source

Breath selection methods for compact mass spectrometry breath analysis

Journal of Breath Research, 2019
Compact mass spectrometry (CMS) is a versatile and transportable analytical instrument that has the potential to be used in clinical settings to quickly and non-invasively detect a wide range of relevant conditions from breath samples. The purpose of this study is to optimise data preprocessing protocols by three proposed methods of breath sampling ...
Kerry Rosenthal, Dorota M Ruszkiewicz, Hayden Allen, Martin R Lindley, Matthew A Turner, Eugenie Hunsicker   +5 more
openaire   +2 more sources

Breath analysis for the screening and diagnosis of diseases

Applied spectroscopy reviews (Softcover ed.), 2020
Exhaled breath contains small molecules and complex volatile organic compounds (VOCs) such as H2O, CO2, NO, NH3, ketones, aldehydes, alcohols, and hydrocarbons.
V. R. Nidheesh, A. Mohapatra, V. K. Unnikrishnan, Rajeev Kumar Sinha, R. Nayak, V. B. Kartha, S. Chidangil   +6 more
semanticscholar   +1 more source

Automatic breath-to-breath analysis of nocturnal polysomnographic recordings

Medical & Biological Engineering & Computing, 2011
Diagnosis of sleep-disordered breathing is based on the presence of an abnormal breathing pattern during sleep. In this study, an algorithm was developed for the offline breath-to-breath analysis of the nocturnal respiratory recordings. For that purpose, respiratory signals (nasal airway pressure, thoracic and abdominal movements) were divided into ...
Houdt, van, P.J., Ossenblok, P.P.W., Erp, van, M.G., Schreuder, K.E., Krijn, R.J.J., Boon, P., Cluitmans, P.J.M.   +6 more
openaire   +2 more sources

Human breath Raman analysis

2020 International Conference Laser Optics (ICLO), 2020
Raman spectrometer for human breath analysis is presented in this paper. Raman spectrum of human breath is measured. Components of gas mixture are identified. CO 2 , O 2 , N 2 , CH 4 gases are identified.
E.E. Popov, V.V. Kurikova
openaire   +1 more source

Analysis of breath-by-breath exercise data from field studies

International Journal of Clinical Monitoring and Computing, 1986
We describe a system useful for collecting and analyzing breath-by-breath exercise test data in the field. In studies of untrained subjects, analysis of artifacts is particularly important. Our system uses pattern-recognition criteria to reject breaths if the breathing valves do not operate satisfactorily or if deviations from the calibrating baseline ...
R M, Winslow, S S, McKneally
openaire   +2 more sources

Electronic nose: a non-invasive technology for breath analysis of diabetes and lung cancer patients

Journal of Breath Research, 2019
In human exhaled breath, more than 3000 volatile organic compounds (VOCs) are found, which are directly or indirectly related to internal biochemical processes in the body.
Bhagaban Behera, Rathin K. Joshi, G. K. Anil Vishnu, S. Bhalerao, H. Pandya   +4 more
semanticscholar   +1 more source

Automated breath sound analysis

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2002
A new approach to analyzing breath sounds is presented. Detailed spectral information of breath sounds was used to investigate the possible relation between lung sound and airways obstruction. Tracheal sound recordings were obtained from two subjects during three sessions of allergen induced airways obstruction.
Oud, M., Dooijes, E.H.
openaire   +3 more sources

Online breath analysis using metal oxide semiconductor sensors (electronic nose) for diagnosis of lung cancer

Journal of Breath Research, 2019
The analysis of exhaled breath is drawing a high degree of interest in the diagnostics of various diseases, including lung cancer. Electronic nose (E-nose) technology is one of the perspective approaches in the field due to its relative simplicity and ...
Aleksandr Kononov, Boris A. Korotetsky, Igor E. Jahatspanian, A. Gubal, Alexey Vasiliev, Andrey Arsenjev, A. Nefedov, A. Barchuk, Ilya Gorbunov, Kirill Kozyrev, A. Rassadina, Evgenia Iakovleva, M. Sillanpää, Z. Safaei, N. Ivanenko, N. Stolyarova, V. Chuchina, A. Ganeev   +17 more
semanticscholar   +1 more source

Breath-Collection Device for Delayed Breath-Alcohol Analysis

1980
The report includes the details of a study to develop, evaluate, and validate a breath collection device (BCD) for delayed breath-alcohol analysis. Primary applications of the BCD include collection of breath-alcohol samples for field surveys or for later laboratory analysis for independent verification of evidential breath-alcohol tests for traffic ...
Dubowski, Kurt M., University of Oklahoma: Department of Medicine & Toxicology Laboratories   +1 more
openaire   +1 more source