A review on the impact of aircraft cabin air quality and cabin pressure on human wellbeing by Zuber, Mohammad, Ahmad, Kamarul Arifin, Riazuddin, Vizy Nazira

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Piecewise PID Controller Designing for Pressurization System of Cockpit Cover Test Bed by TU Yuxin, MA Chunxiang, ZHANG Xianjin, YANG Bei, WANG Yun

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Modeling Analysis of Supersonic Free Jet Test System Based on Matlab/Simulink by Sun Shunli, Li Gang, Lu Haiyang

Subjects: “…|free jet test|cabin pressure|supersonic nozzle|ejector|diffuser…”
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Influence of altitude on cerebral and splanchnic oxygen saturation in critically ill children during air ambulance transport. by Tova Hannegård Hamrin, Staffan Eksborg, Jonas Berner, Urban Fläring, Peter J Radell

“…<h4>Objective</h4>The aim of the current study was to investigate how cerebral and splanchnic oxygen saturation (rSO2-C and rSO2-A) in critically ill children transported in air ambulance was affected by flight with cabin pressurization corresponding to ≥ 5000 feet. A second aim was to investigate any differences between cyanotic and non-cyanotic children in relation to cerebral and splanchnic oxygen saturation during flight ≥ 5000 feet. …”
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Numerical Simulation of Dynamic Pressure Change in Transport Aircraft Cabin with Airdrop by LIU Weibing, JIAO Yuqin, ZOU Hongyi

“…When heavy equipment are airdropped, the cabin cross-section is largely blocked, and rapid moving of heavy equipment will cause drastic changes in cabin pressure and even damage the health of cabin crew.Therefore, it is necessary to carry out numerical simulation of the pressure change in the airdrop cabin of the transport aircraft, and to lay a foundation for further research.The fluid-solid coupling problem of variable acceleration linear motion in <i>x</i> direction under the combined action of traction pull of parachute, gravity, friction and aerodynamic force in the cabin of transport aircraft is taken as the research object.Based on the motion overset grid, numerical simulation of dynamic pressure variation in the forward compartment of a transport aircraft with heavy load airdrop is carried out.The influence of the model size, incoming velocity, cabin blockage and launching position on the dynamic pressure in the cabin is analyzed, and the similarity criterion related to the cabin pressure during the heavy equipment airdrop wind tunnel test is proposed.The results show that:the closer the airdrop object from the frontal wall cabin, the higher the flow velocity and the bigger the degree of cabin cross-section blockage, the bigger the dynamic pressure change in cabin, and vice versa.In the wind tunnel test, non-dimensional cabin pressure with reference of the front cabin pressure at the airdrop beginning is the most accurate and appropriate cabin pressure similarity criterion.…”
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Risk for intracranial pressure increase related to enclosed air in post-craniotomy patients during air ambulance transport: a retrospective cohort study with simulation by Helge Brändström, Anna Sundelin, Daniela Hoseason, Nina Sundström, Richard Birgander, Göran Johansson, Ola Winsö, Lars-Owe Koskinen, Michael Haney

“…Otherwise, air transport with maintained ground-level cabin pressure should be a priority for these patients.…”
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Cerebral embolism during commercial flight: case report by David J. Orccosupa-Quispe, Fiorella D. Mendoza-Cabrera, Margot Mejía-Hurtado

“…Hypoxemia associated with seizures and loss of consciousness in a young person during a flight is not a common event. Loss of cabin pressure during climb appears to be the triggering event in patients with lung disease.…”
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Pneumocephalus and Facial Droop on an Airplane: A Case Report by Irina Sanjeevan-Cabeza, Morgan Oakland

“…In this case the pressure change occurred due to cabin pressure.…”
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Korean Guideline for Managing In-flight Medical Events by Jungeon Kim, Nah-Lee Park, Jung Ha Kim, Young Hwan Kwon

“…Providing medical assistance during a flight offers a number of unique challenges including lower cabin pressure, tight quarters, crowded conditions, and loud background noise. …”

Testing and evaluation of a new airborne system for continuous N₂O, CO₂, CO, and H₂O measurements: the Frequent Calibration High-performance Airbor... by A. Gvakharia, E. A. Kort, M. L. Smith, M. L. Smith, S. Conley

“…When the commercial system is operated in an off-the-shelf manner, we find a clear cabin pressure–altitude dependency for N₂O, CO₂, and CO. …”
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Study on Combustion Properties of Aviation Carpet under Low Ambient Pressure

“…The flame-retardant materials in the cabin of civil aircraft is possible to induce fire accident, which can cause certain threat to the operation safety of aircraft. The cabin pressure of civil aircraft is generally maintained at 75~84 kPa under normal transport condition, and the combustion behavior of aviation carpet will change under this pressure. …”
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A case of cerebral aneurysm rupture and subarachnoid hemorrhage associated with air travel by Cui V, Kouliev T, Wood J

“…Keywords: high-altitude, cabin pressure, emergency, cerebral edema, triage, neurological…”
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Very mild exposure to hypoxia for 8 h can induce ventilatory acclimatization in humans. by Fatemian, M, Kim, D, Poulin, M, Robbins, P

“…The purpose of this study was to determine whether short-duration exposures to very mild hypoxia, such as are commonly associated with the reduction in cabin pressure during commercial airline flight, can also induce some degree of ventilatory acclimatization. …”

Transport of COVID-19 and other highly contagious patients by helicopter and fixed-wing air ambulance: a narrative review and experience of the Swiss air rescue Rega by Roland Albrecht, Jürgen Knapp, Lorenz Theiler, Marcus Eder, Urs Pietsch

“…This PIU is unique, as it remains air-tight even when there is a sudden loss of cabin pressure. Conclusion A wide variety of means are being used for the aeromedical transport of infectious patients. …”
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Pollutant exposures and health symptoms in aircrew and office workers: Is there a link? by Peder Wolkoff, Derrick R. Crump, Paul T.C. Harrison

“…Sensory symptoms, in particular in eyes, appear to be exacerbated by environmental and occupational conditions that differ in aircraft and offices, e.g., ozone incidents, low relative humidity, low cabin pressure, and visual display unit work. The data do not support airflow limitation effects. …”
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Fit for high altitude: are hypoxic challenge tests useful? by Matthys Heinrich

“…Commercial air planes keep their cabin pressure at an equivalent altitude of about 2,500 m. …”
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The development and evaluation of airborne in situ N₂O and CH₄ sampling using a quantum cascade laser absorption spectrometer (QCLAS) by J. R. Pitt, M. Le Breton, G. Allen, C. J. Percival, M. W. Gallagher, S. J.-B. Bauguitte, S. J. O'Shea, J. B. A. Muller, M. S. Zahniser, J. Pyle, P. I. Palmer

“…Test flight data linking this sensitivity to changes in cabin pressure are presented. Total 1<i>σ</i> uncertainties of 2.47 ppb for CH₄ and 0.54 ppb for N₂O are derived. …”
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An experimental study of the human interface with one atmosphere diving suit by appendages by Wilkins, Christopher Michael

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Fitness to fly for children and adolescents after Fontan palliation by N. Müller, U. Herberg, U. Herberg, J. Breuer, T. Kratz, J. A. Härtel

“…IntroductionAt cruising altitude, the cabin pressure of passenger aircraft needs to be adjusted and, therefore, the oxygen content is equivalent to ambient air at 2,500 masl, causing mild desaturation and a rising pulmonary vascular resistance (PVR) in healthy subjects. …”
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Spleen Contraction During Sudden Eupneic Hypoxia Elevates Hemoglobin Concentration by Frank Pernett, Felix Schagatay, Caroline Vildevi, Erika Schagatay, Erika Schagatay

“…However, acute hypoxia exposure could be shorter and more severe when oxygen systems fail during, e.g., high-altitude sky diving, aircraft cabin pressure drop, balloon flights, extreme altitude climbing, and in some maladies. …”
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