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Journal articles on the topic 'Breathing apparatus'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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1

Setty, B. V. S., G. S. N. Murthy, K. Thammaiah, and T. Lazar Mathew. "Underwater Breathing Apparatus." Defence Science Journal 46, no. 3 (January 1, 1996): 155–60. http://dx.doi.org/10.14429/dsj.46.4483.

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2

Nomoto, Hiroshi. "Self-contained Underwater Breathing Apparatus." Journal of the Society of Mechanical Engineers 101, no. 955 (1998): 422–23. http://dx.doi.org/10.1299/jsmemag.101.955_422.

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3

Woźniak, Arkadiusz. "The Influence of the Flushing Method on the Stable Oxygen Content in the Scr1 Crabe Breathing Loop in the Decompression Phase." Polish Hyperbaric Research 70, no. 1 (March 1, 2020): 21–42. http://dx.doi.org/10.2478/phr-2020-0002.

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AbstractMaintaining a stable oxygen content in the breathing loop of the diving apparatus with a semi-closed respiratory circuit is essential for the safety of underwater mine clearance operations. This article discusses the influence of modified methods of flushing the breathing apparatus on the quality of the breathing loop ventilation process. The problem of flushing an apparatus is presented in light of the Polish Naval Academy’s change from statistical to deterministic decompression schedules, based on the model of apparatus ventilation, oxygen toxicity hazard and decompression. The exami

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4

Haponenko, H., R. Melnyk, I. Horchynskiy, A. Karshen, Yu Ftemov, and O. Lischinskyy. "Design features of underwater breathing apparatus." Military Technical Collection, no. 27 (November 30, 2022): 65–74. http://dx.doi.org/10.33577/2312-4458.27.2022.65-74.

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The problem of finding and disposing of explosive objects in the water areas of seas and rivers that remain as a result of hostilities on the territory of our country is urgent and requires appropriate technical equipment. The technical support (equipment) for performing underwater work, which is in service with the Armed Forces of Ukraine, is outdated and can pose a threat to the life and health of sapper divers during the performance of complex combat tasks on a regular basis. One of the pressing issues today is the transition of the Armed Forces of Ukraine to NATO standards. Taking this int

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5

Verešová, Tatiana, Jozef Svetlík, and Dávid Kalužník. "VERIFICATION OF TACTICAL AND TECHNICAL DATA OF THE BREATHING APPARATUS." Proceedings of CBU in Natural Sciences and ICT 2 (October 24, 2021): 100–104. http://dx.doi.org/10.12955/pns.v2.160.

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The function of the breathing apparatus is to protect the health of firefighters in a harmful and non-respirable environment. Closed-circuit breathing apparatus provides members of the Fire and Rescue Service with respiratory protection in the elimination of adverse events in tunnels and underground spaces. The MSA 4h Air Elite is a four-hour self-contained breathing apparatus that operates on the principle of generating oxygen by an exothermic reaction of potassium hyperoxide. Each breathing apparatus has its tactical technical parameters. We verified the tactical and technical data of the MS

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6

Kłos, Ryszard. "Modelling of Diving Apparatus Breathing Loop Ventilation." Solid State Phenomena 210 (October 2013): 97–107. http://dx.doi.org/10.4028/www.scientific.net/ssp.210.97.

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The article is based on hypothesis that it is possible to establish the adequate joined mathematical model for ventilation of breathing space (for assessing of artificial breathing mixture real composition) and human decompression after breathing artificial hyperbaric atmosphere. In the effect of establishing mathematical model give the chance to understand gas exchange in human body exposed to pressure. It makes possible to plane extreme hyperbaric expositions (e.g. military special operations) and stimulates progress in the field of anaesthesiology. There is presented scientific project prop

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7

Kłos, Ryszard. "Classification of the underwater diving equipment." Polish Maritime Research 15, no. 1 (January 1, 2008): 80–85. http://dx.doi.org/10.2478/v10012-007-0056-3.

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Classification of the underwater diving equipment In this paper was presented, innovative in preparation of the diving apparatuses classification method, depend on three criteria: the kind of the breathing gas, the operational depth range of the diving apparatus, and the principle of operation. The breathing gas used is the most important criterion. The other basic classification criteria follow from the first one; therefore it should be treated as the one criterion. Such approach to the problem has never been presented before, however it seems to be correct method of the diving apparatuses di

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8

Hu, Hai Bing, Jin Sheng Wang, Hao He, Gao Hua Lin, and Yong Ming Zhang. "Wireless Warning System of Positive Pressure SCBA Based on GPRS." Applied Mechanics and Materials 496-500 (January 2014): 1702–6. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.1702.

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Ordinary positive pressure breathing apparatus only supply the air to firefighters within a certain time, and cannot help to realize the real-time control of the service status of the apparatus, leading to the existence of security risks. In this study, a wireless early warning system of positive pressure breathing apparatus was proposed in response to the actual demand of the fire force based on a combination of GPRS communication technologies, intelligent prediction algorithm of the breathing apparatus, and network-based programming technologies. The system features strong applicability and

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9

Bänziger, Fritz A., and Peter Klein. "Speaking and hearing system for breathing apparatus." Journal of the Acoustical Society of America 88, no. 6 (December 1990): 2922. http://dx.doi.org/10.1121/1.399590.

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10

Lampotang, Samsun. "Apparatus and method of simulating breathing sounds." Journal of the Acoustical Society of America 105, no. 2 (1999): 588. http://dx.doi.org/10.1121/1.427016.

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11

Garofalo, Franco, Sabato Manfredi, and Stefania Santini. "Electronic control of an underwater breathing apparatus." IFAC Proceedings Volumes 37, no. 10 (July 2004): 221–26. http://dx.doi.org/10.1016/s1474-6670(17)31735-4.

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12

Sopko, Timothy J. "Microphone circuit control mechanism for breathing apparatus." Journal of the Acoustical Society of America 96, no. 4 (October 1994): 2617. http://dx.doi.org/10.1121/1.410086.

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13

Pavelek, Zdeněk. "POSSIBILITIES OF THE USE OF WORKING SELF-CONTAINED BREATHING APPARATUSES FILTRATING CARBON MONOXIDE IN THE PRACTICE OF MINE RESCUE SERVICES." GeoScience Engineering 63, no. 3 (September 26, 2017): 30–35. http://dx.doi.org/10.1515/gse-2017-0015.

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Abstract In the current practice of the Mining Rescue Service of the Czech Republic, since 2005, the insulated overpressure regenerative breathing apparatuses with a closed circuit and supply of medicinal oxygen are used as the backbone working breathing apparatuses. At the end of the year 2010, the compressed-air breathing apparatuses were introduced into the practice of the Mining Rescue Service of the Czech Republic, which, in precisely defined types of mine rescue service interventions and under precisely defined conditions, can replace the aforementioned backbone working insulated overpre

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14

Markus, Maria Maximovna. "NOTION OF PERFORMING BREATHING AMONG SAXOPHONISTS." Вестник Восточно-Сибирского государственного института культуры 152 (December 11, 2023): 59–70. http://dx.doi.org/10.31443/2541-8874-2023-3-27-59-70.

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The article сonsiders the essence of performing breathing on saxophone, ways of achieving the correct breathing, and the problems arising at the initial stage of the breathing apparatus training, or in the process of its incorrect use. The most important moments in the practice of mastering the performing breathing have been highlighted.

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15

T., STANCIU. "The potential air flow through diver’s breathing apparatus." Scientific Bulletin of Naval Academy XXIV, no. 1 (July 15, 2021): 41–47. http://dx.doi.org/10.21279/1454-864x-21-i1-004.

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The gas admission through the divers' breathing apparatus is done with a critical flow. The gas storage pressure is reduced to the value of the external pressure 𝑝𝑒 . The paper approaches the gas-dynamic phenomena that occur when the gas flows through the second stage regulator, respectively: the variable restrictor A (between the seat and the cylindrical piston) and the fixed restrictor B (the orifice of cylindrical piston). The two main pressure restrictors can be considered Laval nozzles. Mathematical modeling of airflow through restrictors was done following the notions of the theory of po

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16

Hidayat, J. Saiful, S. Iman, Suprapto, I. Aidil, and S. Eddy. "Design and Implementation of Ventilator for Breathing Apparatus." IOP Conference Series: Materials Science and Engineering 990 (December 2, 2020): 012007. http://dx.doi.org/10.1088/1757-899x/990/1/012007.

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17

Lutz, Donal G. "In-line silencer for clean room breathing apparatus." Journal of the Acoustical Society of America 101, no. 2 (February 1997): 662. http://dx.doi.org/10.1121/1.419462.

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18

Donskoy, Dimitri, Len Imas, Timothy Yen, Nikolay Sedunov, and Michael Tsionskiy. "Air turbulence-induced vibration of SCUBA breathing apparatus." Journal of the Acoustical Society of America 122, no. 5 (2007): 2965. http://dx.doi.org/10.1121/1.2942570.

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19

SECCOMBE, LEIGH M., LACHLAN BUDDLE, JOHN D. BRANNAN, MATTHEW J. PETERS, and CLAUDE S. FARAH. "Exercise-induced Bronchoconstriction with Firefighting Contained Breathing Apparatus." Medicine & Science in Sports & Exercise 50, no. 2 (February 2018): 327–33. http://dx.doi.org/10.1249/mss.0000000000001424.

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20

G. Matveikin, V., E. N. Tugolukov, S. Yu. Alekseyev, and A. Yu. Zakharov. "A Method for the Development of Self-Contained Breathing Apparatus Using Computer Modeling." International Journal of Engineering & Technology 7, no. 3.14 (July 25, 2018): 481. http://dx.doi.org/10.14419/ijet.v7i3.14.17046.

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The methodology of designing self-contained breathing apparatus with chemically bound oxygen is considered.The distribution of mass and dimensions of the apparatus along the human body increases the comfort of its use, expands the range of types of operations that a person can perform. The problem of optimal design of apparatuses is formulated. The solution of the problem is provided by the use of automated stands of virtual / augmented reality simulating human breathing and the operation of devices. The work of the stands is based on computer modeling systems implemented on the basis of analy

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21

Sheard, P. W., and M. Doherty. "Prevalence and severity of external auditory exostoses in breath-hold divers." Journal of Laryngology & Otology 122, no. 11 (March 18, 2008): 1162–67. http://dx.doi.org/10.1017/s0022215108001850.

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AbstractObjective:To explore the prevalence and severity of external auditory exostoses in a population of experienced breath-hold divers, and to compare these to the same parameters within surfing and self-contained underwater breathing apparatus diving populations.Design:A stepwise, multiple regression analysis of cross-sectional data examining the relative contributions of sea surface temperature, latitude of exposure and years of exposure to the prevalence and severity of stenosis due to external auditory exostoses. A chi-square analysis of the prevalence and severity of external auditory

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22

Butcher, Scott J., Richard L. Jones, Neil D. Eves, and Stewart R. Petersen. "Work of breathing is increased during exercise with the self-contained breathing apparatus regulator." Applied Physiology, Nutrition, and Metabolism 31, no. 6 (December 2006): 693–701. http://dx.doi.org/10.1139/h06-073.

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The self-contained breathing apparatus (SCBA) increases the expiratory pressure required to maintain high rates of ventilation, suggesting that the expiratory work of breathing (WOB) is increased; however, this has never been reported. The objective of this study, therefore, was to determine if the WOB is increased with the SCBA regulator (BA condition) compared with a low-resistance breathing valve (RV condition) during exercise. Twelve healthy male subjects underwent two randomized exercise trials, consisting of cycling at 150, 180, 210, and 240 W. Inspired and expired tidal volumes were mea

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23

Eves, Neil D., Richard L. Jones, and Stewart R. Petersen. "The Influence of the Self-Contained Breathing Apparatus (SCBA) on Ventilatory Function and Maximal Exercise." Canadian Journal of Applied Physiology 30, no. 5 (October 1, 2005): 507–19. http://dx.doi.org/10.1139/h05-137.

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Our previous work showed that breathing low density gases during exercise with the self-contained breathing apparatus (SCBA) improves maximal ventilation (VE) and maximal oxygen consumption [Formula: see text] This suggests that the SCBA limits exercise by adding a resistive load to breathing. In this study we compared [Formula: see text] with and without the various components comprising the SCBA to determine their impact on [Formula: see text] Twelve males performed 4 randomly ordered incremental exercise tests to exhaustion on a treadmill: (1) low-resistance breathing valve only (CON); (2)

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24

Ekhilevskiy, S. G., O. V. Golubeva, and E. P. Potapenko. "Simulation of a Breathing Apparatus on Chemically Bound Oxygen with a Circular Pendulum Circuit of the Air Duct Part." Occupational Safety in Industry, no. 1 (January 2021): 46–52. http://dx.doi.org/10.24000/0409-2961-2021-1-46-52.

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At present, the main prospects for improving the insulating means of respiratory protection are associated with the chemical method of oxygen reservation. The arguments in favor of this choice are the high packing density of oxygen and its self-regulating supply, depending on the physical activity of a person. The main schemes of the air duct part of breathing apparatus on chemically bound oxygen are circular and pendulum. The attempt is made in the article to combine the advantages of the circular (small harmful space) and pendulum (small volume of the dead layer) schemes of breathing apparat

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25

Garofalo, Francesco, Luigi Iannelli, Sabato Manfredi, and Stefania Santini. "A SLIDING OBSERVER FOR CLOSED-CIRCUIT UNDERWATER BREATHING APPARATUS." IFAC Proceedings Volumes 38, no. 1 (2005): 97–102. http://dx.doi.org/10.3182/20050703-6-cz-1902.01958.

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26

WARKANDER, D. E., and C. E. G. LUNDGREN. "Dead space in the breathing apparatus; interaction with ventilation." Ergonomics 38, no. 9 (September 1995): 1745–58. http://dx.doi.org/10.1080/00140139508925224.

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27

LOUHEVAARA, V., J. SMOLANDER, O. KORHONEN, and T. TUOMI. "Maximal working times with a self-contained breathing apparatus." Ergonomics 29, no. 1 (January 1986): 77–85. http://dx.doi.org/10.1080/00140138608968242.

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28

Radford, Craig A., Andrew G. Jeffs, Chris T. Tindle, Russell G. Cole, and John C. Montgomery. "Bubbled waters: The noise generated by underwater breathing apparatus." Marine and Freshwater Behaviour and Physiology 38, no. 4 (December 2005): 259–67. http://dx.doi.org/10.1080/10236240500333908.

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29

Obuskovic, Gordana, and Kamalesh K. Sirkar. "Liquid membrane-based CO2 reduction in a breathing apparatus." Journal of Membrane Science 389 (February 2012): 424–34. http://dx.doi.org/10.1016/j.memsci.2011.11.008.

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30

Teregulov, A. G., M. I. Abdrakhmanov, V. F. Bogoyavlensky, and I. A. Logvinov. "Determination of basal metabolism and lung function by AOOZ-M apparatus." Kazan medical journal 43, no. 4 (November 16, 2021): 94–97. http://dx.doi.org/10.17816/kazmj87375.

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In 1957, in an article by engineers M.I. Abdrakhmanov and I.A. In 1958, a more advanced design of this kind of apparatus with a closed breathing circuit of the AOOZ-M type was developed (Fig. 1), in which the capacity of the rubber bellows was increased to 10 liters and the entire gas line (with a tank) - up to 60 liters; this makes it possible to conduct studies of basal metabolism both when breathing air and on pure O2 in a large volume.

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31

Onevsky, P. M., M. P. Onevsky, and V. A. Pogonin. "Identification of mathematical model of human breathing in system “Artificial lungs – self-contained breathing apparatus”." IOP Conference Series: Materials Science and Engineering 327 (March 2018): 022077. http://dx.doi.org/10.1088/1757-899x/327/2/022077.

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32

Slavinskyi, Dmytro, Tamara Bilko, Yury Cheberyachko, Serhiy Cheberyachko, and Oleg Deryugin. "Automated air pressure control system in a motorised breathing apparatus." Naukovij žurnal «Tehnìka ta energetika» 15, no. 1 (February 2, 2024): 9–22. http://dx.doi.org/10.31548/machinery/1.2024.09.

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The relevance of the study is to develop an effective system for controlling the pressure in the air supply in motorised breathing apparatus to ensure effective protection of employees from dangerous aerosols and improve their health. The goal was to create an automated air pressure control system in a motorised breathing apparatus using a proportional-integral-derivative controller. For this purpose, the simulation method was used. In order to avoid unforeseen situations of deterioration of the level of protection, the structure of the pressure control system of a motorised respirator has bee

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33

Hixon, Thomas J., and Gary Weismer. "Perspectives on the Edinburgh Study of Speech Breathing." Journal of Speech, Language, and Hearing Research 38, no. 1 (February 1995): 42–60. http://dx.doi.org/10.1044/jshr.3801.42.

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This article offers critical perspectives on the Edinburgh study of speech breathing reported in this journal (Draper, Ladefoged, & Whitteridge, 1959) and elsewhere (Draper, Ladefoged, & Whitteridge, 1960; Ladefoged, Draper, & Whitteridge, 1958). These perspectives concern: (a) errors in establishing a backdrop of mechanical information; (b) discrepancies between data and statements about them; (c) counterpredictive features between data and other knowledge about breathing; and (d) inadequacies in acquiring, portraying, and interpreting electromyographic information relative to the

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34

Eves, Neil D., Stewart R. Petersen, and Richard L. Jones. "Effects of Helium and 40% O2 on Graded Exercise With Self-Contained Breathing Apparatus." Canadian Journal of Applied Physiology 28, no. 6 (December 1, 2003): 910–26. http://dx.doi.org/10.1139/h03-065.

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Maximal exercise performance is decreased when breathing from a self-contained breathing apparatus (SCBA), owing to a ventilatory limitation imposed by the increased expiratory resistance. To test the hypothesis that decreasing the density of the breathing gas would improve maximal exercise performance, we studied 15 men during four graded exercise tests with the SCBA. Participants breathed a different gas mixture during each test: normoxia (NOX; 21% O2, 79% N2), hyperoxia (HOX; 40% O2, 60% N2), normoxic helium (HE-OX; 21% O2, 79% He), and hyperoxic helium (HE-HOX; 40% O2, 60% He). Compared to

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35

Bersten, A. D., A. J. Rutten, and A. E. Vedig. "Efficacy of Pressure Support in Compensating for Apparatus Work." Anaesthesia and Intensive Care 21, no. 1 (February 1993): 67–71. http://dx.doi.org/10.1177/0310057x9302100116.

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Breathing through an endotracheal tube, connector, and ventilator demand valve imposes an added load on the respiratory muscles. As respiratory muscle fatigue is thought to be a frequent cause of ventilator dependence, we sought to examine the efficacy of five different ventilators in reducing this imposed work through the application of pressure support ventilation. Using a model of spontaneous breathing, we examined the apparatus work imposed by the Servo 900-C, Puritan Bennett 7200a, Engstrom Erica, Drager EV-A or Hamilton Veolar ventilators, a size 7.0 and 8.0 mm endotracheal tube, and ins

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36

Marchesseault, L., M. Mungiole, and S. H. Loring. "Measurement of gastric and diaphragmatic height during slow breathing maneuvers." Journal of Applied Physiology 74, no. 6 (June 1, 1993): 3057–62. http://dx.doi.org/10.1152/jappl.1993.74.6.3057.

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Changes in height of the gastric air bubble can be inferred, in theory, from the difference between gastric pressures measured with water- and air-filled balloon-catheter systems. We describe an apparatus that satisfactorily measures changes in height of gastric balloons in vitro. During slow breathing maneuvers in standing subjects, the apparatus measured changes in height of the balloons in the stomach that were consistent with expected changes in height of the diaphragmatic dome. In four subjects, balloon movements were nearly always less than movements of the costal margin of the diaphragm

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37

Tseligorov, Nikolai Aleksandrovich, Ilia Vladimirovich Kovalev, and Daniel Alekseevich Galstian. "Closed-Loop Air Conditioning and Ventilation Systems." Interactive science, no. 6 (52) (August 20, 2020): 47–51. http://dx.doi.org/10.21661/r-551676.

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38

Banach, Mateusz, and Zbigniew Talaśka. "Evaluation of the effect of nozzle diameter on the breathing performance of a diving breathing apparatus." Polish Hyperbaric Research 80, no. 3 (November 10, 2023): 39–60. http://dx.doi.org/10.2478/phr-2022-0015.

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Abstract The article was inspired by information in the literature regarding damage to medium-pressure diving hoses, which, as a result of the crystallisation of material on their inner surface and the detachment of particles, caused significant interference with the output of the pressure regulator. A dangerous consequent ‘clogging’ of the airflow in stage II of the breathing apparatus and an increase in the effort in the diver’s lungs to overcome the increased breathing resistance resulted. This problem was investigated in the paper. Nozzles with reduced diameters were fabricated to simulate

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39

OSHIMA, Shinji, Masashi TAKAHASHl, Yoshikazu SHIRANE, and Kunio HATSUMOTO. "Development of a semi-closed underwater breathing apparatus, the "eOBA"." Annals of physiological anthropology 9, no. 3 (1990): 299–304. http://dx.doi.org/10.2114/ahs1983.9.299.

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40

KAKITSUBA, Naoshi, and Hideaki NAKAYAMA. "Evaluation of a semi-closed underwater breathing apparatus, the "eOBA"." Annals of physiological anthropology 9, no. 3 (1990): 305–10. http://dx.doi.org/10.2114/ahs1983.9.305.

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41

Bang, Chang-Hoon. "Physical Response of Human Body Wearing Self Contained Breathing Apparatus." Journal of Korean Institute of Fire Science and Engineering 26, no. 5 (October 31, 2012): 8–12. http://dx.doi.org/10.7731/kifse.2012.26.5.008.

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42

King, Michael, Elizabeth Sanli, Kaitlin Mugford, Stefanie Martina, Robert Brown, and Heather Carnahan. "Evaluation of the Helicopter Emergency Breathing Apparatus on Egress Performance." Aerospace Medicine and Human Performance 91, no. 12 (December 1, 2020): 962–65. http://dx.doi.org/10.3357/amhp.5704.2020.

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BACKGROUND: Emergency helicopter landing at sea is dangerous. Specialized training, known as helicopter underwater escape training (HUET), prepares occupants to quickly exit the helicopter, which often inverts and sinks. In most jurisdictions, helicopter occupants are equipped with a helicopter underwater egress breathing apparatus (HUEBA) to provide sufficient air for escape. HUET trainees report that the HUEBA is easy to use, but it is well known that learners are often overconfident in their judgement of learning. To better understand how the HUEBA affects HUET sequence performance, we inve

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43

Miedinger, David, Andrea Bläuenstein, Nathalie Wolf, Franz Frey, Christoph Karli, and Jörg D. Leuppi. "Evaluation of Fitness to Utilize Self-Contained Breathing Apparatus (SCBA)." Journal of Asthma 47, no. 2 (February 19, 2010): 178–84. http://dx.doi.org/10.3109/02770900903483782.

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44

TAKAHASHI, Masayoshi, Yoshihiro MANO, Masaharu SHIBAYAMA, and Nobuo YAMAMI. "Effects of Closed-Circuit Breathing Apparatus on Respiration and Metabolism." SANGYO EISEIGAKU ZASSHI 40, no. 1 (1998): 1–6. http://dx.doi.org/10.1539/sangyoeisei.kj00001990714.

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45

Kieselbach, Rolf. "Analysis of the in-service failure of firemen's breathing apparatus." Technology, Law and Insurance 5, no. 3-4 (September 2000): 155–63. http://dx.doi.org/10.1080/13599370010001056.

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46

Coca, Aitor, Jung-Hyun Kim, Richard Duffy, and W. Jon Williams. "Field evaluation of a new prototype self-contained breathing apparatus." Ergonomics 54, no. 12 (November 22, 2011): 1197–206. http://dx.doi.org/10.1080/00140139.2011.622797.

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47

PHIPPS, P. R., I. GONDA, and S. D. ANDERSON. "Apparatus for the Control of Breathing Patterns During Aerosol Inhalation." Journal of Aerosol Medicine 5, no. 3 (January 1992): 155–70. http://dx.doi.org/10.1089/jam.1992.5.155.

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48

Winkler, Bernd E., Claus-Martin Muth, and Kay Tetzlaff. "Should children dive with self-contained underwater breathing apparatus (SCUBA)?" Acta Paediatrica 101, no. 5 (January 23, 2012): 472–78. http://dx.doi.org/10.1111/j.1651-2227.2011.02589.x.

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49

Loginov, V. I., Yu N. Maslov, R. A. Kislyakov, and E. D. Gorbunov. "Problematic Issues of Thermal Protection of Personal Protective Equipment for Respiratory Organs and Eyesight of Firefighters." Occupational Safety in Industry, no. 11 (November 2022): 26–33. http://dx.doi.org/10.24000/0409-2961-2022-11-26-33.

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Temperature of the inhaled gaseous medium in fires is an important parameter of personal respiratory and eye protection equipment, however, the national standards do not regulate the temperature inside their front part. The main criterion considered during testing is the ability of the device to protect the user from toxic combustion products. According to the requirements of national standards, the tests are aimed at assessing the resistance of one unit of the product to one of the types of temperature effects (heat flow, open flame) within the framework of one conducted test. At the same tim

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50

Davidova, Jelena, Galina Zavadska, Asta Rauduvaitė, and Ming Jen Chuang. "Strategies for the Development of 6–8-Year- Old Children’s Breathing for Singing." Pedagogika 125, no. 1 (April 13, 2017): 111–21. http://dx.doi.org/10.15823/p.2017.08.

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On the basis of the diagnostic results yielded by the international project “The Coordination between Musical Hearing and Vocal Apparatus of 6–8-Year-Old Children during the Process of Singing: Comparative Study in Latvia, Lithuania and Taiwan”, strategies for the development of 6–8-year-old children’s breathing for singing were formulated in three areas (breath support, formation of the sensation of inhalation and exhalation, and breath energy), as well as exercises for the development of correct breathing in singing were devised. Research aim: to design strategies for developing 6–8-year-old

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