Understanding the saturation state of argon in the thermocline: The role of air-sea gas exchange and diapycnal mixing

2006 ◽  
Vol 20 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
T. Ito ◽  
C. Deutsch
Keyword(s):  
Gas Exchange ◽  
Diapycnal Mixing ◽  
Saturation State

scholarly journals Overlooked Role of Mesoscale Winds in Powering Ocean Diapycnal Mixing

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Zhao Jing ◽  
Lixin Wu ◽  
Xiaohui Ma ◽  
Ping Chang
Keyword(s):  
Diapycnal Mixing

Fluctuations in O2 stores and gas exchange with passive changes in posture

1975 ◽  
Vol 39 (1) ◽  
pp. 47-53 ◽  
Author(s):  
J. A. Loeppky ◽  
U. C. Luft
Keyword(s):  
Cardiac Output ◽  
Gas Exchange ◽  
Metabolic Rate ◽  
Blood Volume ◽  
Mass Spectrometer ◽  
Rapid Loss ◽  
Pulmonary Capillary ◽  
O2 Transfer

To clarify the role of O2 stores in the fluctuations in VO2 observed with changing posture, O2 intake (Veo2) and pulmonary capillary O2 transfer (Vpco2) were calculated breath by breath with a box-balloon sprometer and mass spectrometer. Changes in O2 stores of the lungs (O2L) and blood (O2b) were computed assuming metabolic rate (Vco2) constant (O2L = Veo2 - Vpco2; O2b = Vpco2 - Vco2). Measurements were made before, during, and after passive tilt to 60 degrees and on return to recumbency after 10 min erect. From supine to upright O2L increased rapidly and O2b dropped slowly, creating a net deficit in Veo2 of 130 ml in 10 min. Return to supine caused rapid loss in O2L and gain in O2b with a net Veo2 excess of 117 ml. Shifts in O2b were 2.5 times greater but opposite to shifts in O2L. Changes in O2b result from shifts in blood volume and flow more than from changes in cardiac output. Refilling of O2b, matching loss while upright, caused transient hypoxia with significant hyperpnea.

scholarly journals Role of Intrapleural Pressure in the Positional Effect on Gas Exchange in Unilateral Pleural Effusion

1984 ◽  
Vol 31 (4) ◽  
pp. 176-182
Author(s):  
Dong Cheol Han ◽  
Soo Taek Uh ◽  
Byung Soo Ahn ◽  
Taek Jun Kim ◽  
Choon Sik Park
Keyword(s):  
Pleural Effusion ◽  
Gas Exchange ◽  
Intrapleural Pressure ◽  
Positional Effect
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