Nomograms for Determination of Endcapillary Partial Pressures in the Human Lung (Pc´O2, Pc´CO2) inHypoxia and Physical Work

Respiration ◽  
1970 ◽  
Vol 27 (2) ◽  
pp. 154-161
Author(s):  
W. Schmidt ◽  
K.H. Schnabel
1991 ◽  
Vol 56 (8) ◽  
pp. 1575-1579 ◽  
Author(s):  
Jiří Vobiš ◽  
Karel Mocek ◽  
Emerich Erdös

The formation of sodium disulfite by the heterogeneous reaction of solid active sodium sulfite with gaseous sulfur dioxide in the presence of water vapour was investigated over the temperature range of 293 to 393 K at SO2. H2O and O2 partial pressures of 1.2-7.4, 1.2-6.4 and 0-11.3 kPa, respectively. The effect of the reaction time was also examined. Kinetic measurements were supplemented with the determination of the equilibrium dissociation pressure of SO2 in contact with sodium sulfite at 373.15 K. The major aim of the work was to establish the optimum conditions for attaining the maximum degree of conversion of the solid reactant to sodium disulfite. The conditions for the formation of virtually pure sodium disulfite were found.


1994 ◽  
Vol 15 (4) ◽  
pp. 583-587 ◽  
Author(s):  
Ainsley Weston ◽  
Helen M. Ling-Cawley ◽  
Neil E. Caporaso ◽  
Elise D. Bowman ◽  
Robert N. Hoover ◽  
...  

2010 ◽  
Vol 66 (6) ◽  
pp. 579-584 ◽  
Author(s):  
Kevin Robertson ◽  
David Bish

X-ray powder diffraction (XRD) data were used to solve the crystal structures of phases in the magnesium perchlorate hydrate system, Mg(ClO4)2·nH2O (n = 4, 2). A heating stage and humidity generator interfaced to an environmental cell enabled in-situ XRD analyses of dehydration reactions under controlled temperatures and partial pressures of H2O (P_{{\rm H}_2{\rm O}}). The crystal structures were determined using an ab initio charge-flipping method and were refined using fundamental-parameter Rietveld methods. Dehydration of magnesium perchlorate hexahydrate to tetrahydrate (348 K) results in a decrease in symmetry (space group = C2), where isolated Mg2+ cations are equatorially coordinated by four H2O molecules with two [ClO4]− tetrahedra at the apices. Further dehydration to the dihydrate (423 K) leads to bridging of the isolated packets to form double corner-sharing chains of octahedra and polyhedra (space group = C2/m).


Author(s):  
Longgong Xia ◽  
Longgong Xia ◽  
Zhihong Liu ◽  
Pekka Antero Taskinen ◽  
Pekka Antero Taskinen

2019 ◽  
Vol 21 (16) ◽  
pp. 8464-8469 ◽  
Author(s):  
Oleg N. Ulenikov ◽  
Elena S. Bekhtereva ◽  
Olga V. Gromova ◽  
Anastasia S. Belova ◽  
Sigurd Bauerecker

A method is presented which allows one to derive partial pressures of isotopologue molecules in a gaseous mixture under the conditions of rapid isotope exchange.


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