Louisiana cycle

CGCC [Coal Gasification, Combined Cycle] A general name for processes that both gasify coal and produce electricity. One such process has been operated by Louisiana Gasification Technology, at Plaquemine, LA, since 1987. See also APAC. 

The actual function of aconitic acid in the plant physiology is not clearly understood. Cis-aconitic acid undoubtedly is present to a certain extent in the plant because of its role in the citric acid cycle but the factors which cause the accumulation of comparatively large quantities of aconitic acid have not been clearly defined. Whether the concentration of aconitic acid which is formed in the plant is the cts-form exclusively or is a mixture of the cis- and the trans- acids is also unknown. Balch, Broeg and Ambler,37 in their investigations, reported considerable variation in the aconitic acid content of various crusher juices of Louisiana... 

DeLaune, R. D., and Patrick, W. H., r. (1990). Nitrogen cycling in Louisiana Gulf Coast brackish marshes. Hydrobiologia 199, 73—79. 

There exists a handful of documented cases where the Rn flux in the soil could not be explained by diffusional transport. Perhaps the most striking of these is the one reported by Gabelman (1974) from a detailed Rn survey across the Starks Salt Dome, Louisiana. During a period of 19 months and when 24 hour, 6 hour and 2.5 hour cycles were being observed, on the morning of 17 December 1971 the Rn content at one station unaccountably rose from about 200 pCi/L to 2140 pCi/L in three hours and then fell as rapidly to 50 pCi/L. One possible explanation may be the influence of an unnoticed seismic event. Alekseev et al. (1959) were able to explain most of the observed Rn concentrations using the diffusional transport model but in a few cases Rn penetration was found to be larger than expected and attributed to convective transfer of Rn. 

The amounts and profile distribution of various sulfur forms in Louisiana coastal marshes are important in understanding sulfur cycling as related to the origin and type of tidal wetland marshes. Sulfur forms and distribution were determined in P. hemitomon freshwater marsh, a S. patens brackish marsh, and a S. alterniflora salt marsh along a salinity gradient in Barataria Basin, Louisiana. Soil samples were fractionated into acid volatile sulfur (AVS), elemental sulfur, HCl-soluble sulfur, pyrite sulfur, ester sulfate sulfur, carbon-bonded sulfur, and total sulfur (see Chapter 11 for details). 

Brown, L. C., Besenbruch, G. E., Schultz, K. R., Showalter, S. K., Marshall, A. C., Pickard, P. S., et al. (2002). High efficiency generation of hydrogen fuels using thermochemical cycles and nuclear power. AIChE (American Institute of Chemical Engineers Journal) 2002 Spring National Meeting, New Orleans, Louisiana. 

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