Gases Retention
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Uso sustentado e processamento de llex paraguariensis St. Hill (Evrva-Mate).
The general objective of this thesis was to study the processing of maté Ilex paraguariensis St. Hil Lineage Cambona 4, a renewable natural resource of sustainable form of small farmers in the South of Brazil. An analysis becomes on the conception of the agricultural producers of the city of Machadinho-RS on environment and maté organic culture. A study of
Publicado em: 2002
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14. The behavior of heavy metals in the process of desulfurization of Brazilian coal combustion gases by the addition of limestone
The concentrations of heavy metals in two kinds of Brazilian coals at 100° C (acid digestion) and at 850° C were studied (ashes the obtained in muffle furnace with and without addition of limestone). Data were analyzed by flame atomic absorption, using the air acetylene flame. For Pb, Zn, Ni, Mn and Cu the metal concentration obtained the acid digestion we
Brazilian Journal of Chemical Engineering. Publicado em: 2001-06
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15. An efficient optimization technique for recovering ventilation-perfusion distributions from inert gas data. Effects of random experimental error.
A variable metric optimization method of numerical analysis has been used to recover known distributions of intrapulmonary ventilation-perfusion ratios from inert gas data. Hypothetical lungs were simulated and corresponding inert gas retentions calculated. By using error-free retentions for seven gases and a 50-compartment model, it was possible to recover
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16. Determinants of Chronic Carbon Dioxide Retention and Its Correction in Humans
17 patients with chronic ventilatory failure (including 14 with chronic obstructive pulmonary disease) were studied to determine the causes of carbon dioxide retention and the chronic effect of medroxyprogesterone acetate on ventilatory drive and acid-base status. Carbon dioxide retention in patients with high mechanical loads occurred concomitantly with a h
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17. Control of Galactosyl Diglycerides in Wheat Endosperm by Group 5 Chromosomes
Lower levels of monogalactosyl diglyceride (MGDG) and digalactosyl diglyceride (DGDG) have been found in tetraploid wheats as compared with those in hexaploid wheats. The same difference has been found between hexaploid cultivars and tetraploid lines derived from them by D genome extraction. A lower level of MGDG and DGDG is also present in Triticum carthlic
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18. Comparison of almitrine bismesylate and medroxyprogesterone acetate on oxygenation during wakefulness and sleep in patients with chronic obstructive lung disease.
The effects of almitrine bismesylate and medroxyprogesterone acetate on oxygenation during wakefulness and sleep were compared in six patients with chronic obstructive lung disease and carbon dioxide retention. Patients received 1.5 mg/kg almitrine (a peripheral chemoreceptor stimulant), 100 mg of medroxyprogesterone (a central respiratory stimulant), or mat
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19. Contribution of multiple inert gas elimination technique to pulmonary medicine. 1. Principles and information content of the multiple inert gas elimination technique.
This introductory review summarises four different aspects of the multiple inert gas elimination technique (MIGET). Firstly, the historical background that facilitated, in the mid 1970s, the development of the MIGET as a tool to obtain more information about the entire spectrum of VA/Q distribution in the lung by measuring the exchange of six gases of differ